1 /*- 2 * Copyright (c) 2020-2022 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 57 #include <net/if.h> 58 #include <net/if_var.h> 59 #include <net/if_media.h> 60 #include <net/ethernet.h> 61 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_proto.h> 64 #include <net80211/ieee80211_ratectl.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 74 75 /* -------------------------------------------------------------------------- */ 76 77 /* Keep public for as long as header files are using it too. */ 78 int linuxkpi_debug_80211; 79 80 #ifdef LINUXKPI_DEBUG_80211 81 SYSCTL_DECL(_compat_linuxkpi); 82 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 83 "LinuxKPI 802.11 compatibility layer"); 84 85 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 86 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 87 88 #ifndef D80211_TODO 89 #define D80211_TODO 0x1 90 #endif 91 #ifndef D80211_IMPROVE 92 #define D80211_IMPROVE 0x2 93 #endif 94 #define D80211_TRACE 0x10 95 #define D80211_TRACEOK 0x20 96 #define D80211_TRACE_TX 0x100 97 #define D80211_TRACE_TX_DUMP 0x200 98 #define D80211_TRACE_RX 0x1000 99 #define D80211_TRACE_RX_DUMP 0x2000 100 #define D80211_TRACE_RX_BEACONS 0x4000 101 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 102 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 103 #define D80211_TRACE_STA 0x10000 104 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 105 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 106 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 107 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 108 #else 109 #define UNIMPLEMENTED do { } while (0) 110 #define TRACEOK() do { } while (0) 111 #endif 112 113 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 114 #ifndef PREP_TX_INFO_DURATION 115 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 116 #endif 117 118 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 119 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 120 121 const uint8_t tid_to_mac80211_ac[] = { 122 IEEE80211_AC_BE, 123 IEEE80211_AC_BK, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BE, 126 IEEE80211_AC_VI, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VO, 129 IEEE80211_AC_VO, 130 #if 0 131 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 132 #endif 133 }; 134 135 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 136 /* 137 * XXX TODO need a "glue layer" to link cfg80211 ops to 138 * mac80211 and to the driver or net80211. 139 * Can we pass some on 1:1? Need to compare the (*f)(). 140 */ 141 }; 142 143 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 144 struct ieee80211_node *); 145 static void lkpi_80211_txq_task(void *, int); 146 static void lkpi_ieee80211_free_skb_mbuf(void *); 147 148 static void 149 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 150 const char *_f, int _l) 151 { 152 153 #ifdef LINUXKPI_DEBUG_80211 154 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 155 return; 156 if (lsta == NULL) 157 return; 158 159 printf("%s:%d lsta %p ni %p sta %p\n", 160 _f, _l, lsta, ni, &lsta->sta); 161 if (ni != NULL) 162 ieee80211_dump_node(NULL, ni); 163 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 164 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 165 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 166 #endif 167 } 168 169 static void 170 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 171 { 172 struct ieee80211_node *ni; 173 174 ni = lsta->ni; 175 176 LKPI_80211_LVIF_LOCK(lvif); 177 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 178 LKPI_80211_LVIF_UNLOCK(lvif); 179 180 lsta->ni = NULL; 181 ni->ni_drv_data = NULL; 182 ieee80211_free_node(ni); 183 184 IMPROVE("free lsta here? We won't have a pointer to it from the node anymore."); 185 } 186 187 static struct lkpi_sta * 188 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 189 struct ieee80211_hw *hw, struct ieee80211_node *ni) 190 { 191 struct lkpi_sta *lsta; 192 struct lkpi_vif *lvif; 193 struct ieee80211_vif *vif; 194 struct ieee80211_sta *sta; 195 int tid; 196 197 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 198 M_NOWAIT | M_ZERO); 199 if (lsta == NULL) 200 return (NULL); 201 202 lsta->added_to_drv = false; 203 lsta->state = IEEE80211_STA_NOTEXIST; 204 #if 0 205 /* 206 * This needs to be done in node_init() as ieee80211_alloc_node() 207 * will initialise the refcount after us. 208 */ 209 lsta->ni = ieee80211_ref_node(ni); 210 #endif 211 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 212 ni->ni_drv_data = lsta; 213 214 lvif = VAP_TO_LVIF(vap); 215 vif = LVIF_TO_VIF(lvif); 216 sta = LSTA_TO_STA(lsta); 217 218 IEEE80211_ADDR_COPY(sta->addr, mac); 219 for (tid = 0; tid < nitems(sta->txq); tid++) { 220 struct lkpi_txq *ltxq; 221 222 /* We are not limiting ourselves to hw.queues here. */ 223 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 224 M_LKPI80211, M_NOWAIT | M_ZERO); 225 if (ltxq == NULL) 226 goto cleanup; 227 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 228 if (tid == IEEE80211_NUM_TIDS) { 229 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 230 free(ltxq, M_LKPI80211); 231 continue; 232 } 233 IMPROVE("AP/if we support non-STA here too"); 234 ltxq->txq.ac = IEEE80211_AC_VO; 235 } else { 236 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 237 } 238 ltxq->seen_dequeue = false; 239 ltxq->txq.vif = vif; 240 ltxq->txq.tid = tid; 241 ltxq->txq.sta = sta; 242 skb_queue_head_init(<xq->skbq); 243 sta->txq[tid] = <xq->txq; 244 } 245 246 /* Deferred TX path. */ 247 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 248 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 249 mbufq_init(&lsta->txq, IFQ_MAXLEN); 250 251 return (lsta); 252 253 cleanup: 254 for (; tid >= 0; tid--) 255 free(sta->txq[tid], M_LKPI80211); 256 free(lsta, M_LKPI80211); 257 return (NULL); 258 } 259 260 static enum nl80211_band 261 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 262 { 263 264 if (IEEE80211_IS_CHAN_2GHZ(c)) 265 return (NL80211_BAND_2GHZ); 266 else if (IEEE80211_IS_CHAN_5GHZ(c)) 267 return (NL80211_BAND_5GHZ); 268 #ifdef __notyet__ 269 else if () 270 return (NL80211_BAND_6GHZ); 271 else if () 272 return (NL80211_BAND_60GHZ); 273 else if (IEEE80211_IS_CHAN_GSM(c)) 274 return (NL80211_BAND_XXX); 275 #endif 276 else 277 panic("%s: unsupported band. c %p flags %#x\n", 278 __func__, c, c->ic_flags); 279 } 280 281 static uint32_t 282 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 283 { 284 285 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 286 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 287 switch (band) { 288 case NL80211_BAND_2GHZ: 289 return (IEEE80211_CHAN_2GHZ); 290 break; 291 case NL80211_BAND_5GHZ: 292 return (IEEE80211_CHAN_5GHZ); 293 break; 294 case NL80211_BAND_60GHZ: 295 break; 296 case NL80211_BAND_6GHZ: 297 break; 298 default: 299 panic("%s: unsupported band %u\n", __func__, band); 300 break; 301 } 302 303 IMPROVE(); 304 return (0x00); 305 } 306 307 static enum ieee80211_ac_numbers 308 lkpi_ac_net_to_l80211(int ac) 309 { 310 311 switch (ac) { 312 case WME_AC_VO: 313 return (IEEE80211_AC_VO); 314 case WME_AC_VI: 315 return (IEEE80211_AC_VI); 316 case WME_AC_BE: 317 return (IEEE80211_AC_BE); 318 case WME_AC_BK: 319 return (IEEE80211_AC_BK); 320 default: 321 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 322 return (IEEE80211_AC_BE); 323 } 324 } 325 326 static enum nl80211_iftype 327 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 328 { 329 330 switch (opmode) { 331 case IEEE80211_M_IBSS: 332 return (NL80211_IFTYPE_ADHOC); 333 break; 334 case IEEE80211_M_STA: 335 return (NL80211_IFTYPE_STATION); 336 break; 337 case IEEE80211_M_WDS: 338 return (NL80211_IFTYPE_WDS); 339 break; 340 case IEEE80211_M_HOSTAP: 341 return (NL80211_IFTYPE_AP); 342 break; 343 case IEEE80211_M_MONITOR: 344 return (NL80211_IFTYPE_MONITOR); 345 break; 346 case IEEE80211_M_MBSS: 347 return (NL80211_IFTYPE_MESH_POINT); 348 break; 349 case IEEE80211_M_AHDEMO: 350 /* FALLTHROUGH */ 351 default: 352 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 353 /* FALLTHROUGH */ 354 } 355 return (NL80211_IFTYPE_UNSPECIFIED); 356 } 357 358 #ifdef __notyet__ 359 static uint32_t 360 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 361 { 362 363 switch (wlan_cipher_suite) { 364 case WLAN_CIPHER_SUITE_WEP40: 365 return (IEEE80211_CRYPTO_WEP); 366 case WLAN_CIPHER_SUITE_TKIP: 367 return (IEEE80211_CRYPTO_TKIP); 368 case WLAN_CIPHER_SUITE_CCMP: 369 return (IEEE80211_CIPHER_AES_CCM); 370 case WLAN_CIPHER_SUITE_WEP104: 371 return (IEEE80211_CRYPTO_WEP); 372 case WLAN_CIPHER_SUITE_AES_CMAC: 373 case WLAN_CIPHER_SUITE_GCMP: 374 case WLAN_CIPHER_SUITE_GCMP_256: 375 case WLAN_CIPHER_SUITE_CCMP_256: 376 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 377 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 378 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 379 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 380 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 381 break; 382 default: 383 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 384 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 385 } 386 387 return (0); 388 } 389 #endif 390 391 #ifdef TRY_HW_CRYPTO 392 static uint32_t 393 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 394 { 395 396 switch (cipher) { 397 case IEEE80211_CIPHER_TKIP: 398 return (WLAN_CIPHER_SUITE_TKIP); 399 case IEEE80211_CIPHER_AES_CCM: 400 return (WLAN_CIPHER_SUITE_CCMP); 401 case IEEE80211_CIPHER_WEP: 402 if (keylen < 8) 403 return (WLAN_CIPHER_SUITE_WEP40); 404 else 405 return (WLAN_CIPHER_SUITE_WEP104); 406 break; 407 case IEEE80211_CIPHER_AES_OCB: 408 case IEEE80211_CIPHER_TKIPMIC: 409 case IEEE80211_CIPHER_CKIP: 410 case IEEE80211_CIPHER_NONE: 411 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 412 break; 413 default: 414 printf("%s: unknown cipher %#010x\n", __func__, cipher); 415 }; 416 return (0); 417 } 418 #endif 419 420 #ifdef __notyet__ 421 static enum ieee80211_sta_state 422 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 423 { 424 425 /* 426 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 427 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 428 */ 429 switch (state) { 430 case IEEE80211_S_INIT: 431 return (IEEE80211_STA_NOTEXIST); 432 case IEEE80211_S_SCAN: 433 return (IEEE80211_STA_NONE); 434 case IEEE80211_S_AUTH: 435 return (IEEE80211_STA_AUTH); 436 case IEEE80211_S_ASSOC: 437 return (IEEE80211_STA_ASSOC); 438 case IEEE80211_S_RUN: 439 return (IEEE80211_STA_AUTHORIZED); 440 case IEEE80211_S_CAC: 441 case IEEE80211_S_CSA: 442 case IEEE80211_S_SLEEP: 443 default: 444 UNIMPLEMENTED; 445 }; 446 447 return (IEEE80211_STA_NOTEXIST); 448 } 449 #endif 450 451 static struct linuxkpi_ieee80211_channel * 452 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 453 struct ieee80211_channel *c) 454 { 455 struct ieee80211_hw *hw; 456 struct linuxkpi_ieee80211_channel *channels; 457 enum nl80211_band band; 458 int i, nchans; 459 460 hw = LHW_TO_HW(lhw); 461 band = lkpi_net80211_chan_to_nl80211_band(c); 462 if (hw->wiphy->bands[band] == NULL) 463 return (NULL); 464 465 nchans = hw->wiphy->bands[band]->n_channels; 466 if (nchans <= 0) 467 return (NULL); 468 469 channels = hw->wiphy->bands[band]->channels; 470 for (i = 0; i < nchans; i++) { 471 if (channels[i].hw_value == c->ic_ieee) 472 return (&channels[i]); 473 } 474 475 return (NULL); 476 } 477 478 static struct linuxkpi_ieee80211_channel * 479 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 480 { 481 struct linuxkpi_ieee80211_channel *chan; 482 struct ieee80211_channel *c; 483 struct lkpi_hw *lhw; 484 485 chan = NULL; 486 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 487 c = ni->ni_chan; 488 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 489 c = ic->ic_bsschan; 490 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 491 c = ic->ic_curchan; 492 else 493 c = NULL; 494 495 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 496 lhw = ic->ic_softc; 497 chan = lkpi_find_lkpi80211_chan(lhw, c); 498 } 499 500 return (chan); 501 } 502 503 struct linuxkpi_ieee80211_channel * 504 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 505 { 506 enum nl80211_band band; 507 508 for (band = 0; band < NUM_NL80211_BANDS; band++) { 509 struct ieee80211_supported_band *supband; 510 struct linuxkpi_ieee80211_channel *channels; 511 int i; 512 513 supband = wiphy->bands[band]; 514 if (supband == NULL || supband->n_channels == 0) 515 continue; 516 517 channels = supband->channels; 518 for (i = 0; i < supband->n_channels; i++) { 519 if (channels[i].center_freq == freq) 520 return (&channels[i]); 521 } 522 } 523 524 return (NULL); 525 } 526 527 #ifdef TRY_HW_CRYPTO 528 static int 529 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 530 enum set_key_cmd cmd) 531 { 532 struct ieee80211com *ic; 533 struct lkpi_hw *lhw; 534 struct ieee80211_hw *hw; 535 struct lkpi_vif *lvif; 536 struct ieee80211_vif *vif; 537 struct ieee80211_sta *sta; 538 struct ieee80211_node *ni; 539 struct ieee80211_key_conf *kc; 540 int error; 541 542 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 543 544 ic = vap->iv_ic; 545 lhw = ic->ic_softc; 546 hw = LHW_TO_HW(lhw); 547 lvif = VAP_TO_LVIF(vap); 548 vif = LVIF_TO_VIF(lvif); 549 550 memset(&kc, 0, sizeof(kc)); 551 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 552 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 553 k->wk_cipher->ic_cipher, k->wk_keylen); 554 kc->keyidx = k->wk_keyix; 555 #if 0 556 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 557 #endif 558 atomic64_set(&kc->tx_pn, k->wk_keytsc); 559 kc->keylen = k->wk_keylen; 560 memcpy(kc->key, k->wk_key, k->wk_keylen); 561 562 switch (kc->cipher) { 563 case WLAN_CIPHER_SUITE_CCMP: 564 kc->iv_len = k->wk_cipher->ic_header; 565 kc->icv_len = k->wk_cipher->ic_trailer; 566 break; 567 case WLAN_CIPHER_SUITE_TKIP: 568 default: 569 IMPROVE(); 570 return (0); 571 }; 572 573 ni = vap->iv_bss; 574 sta = ieee80211_find_sta(vif, ni->ni_bssid); 575 if (sta != NULL) { 576 struct lkpi_sta *lsta; 577 578 lsta = STA_TO_LSTA(sta); 579 lsta->kc = kc; 580 } 581 582 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 583 if (error != 0) { 584 /* XXX-BZ leaking kc currently */ 585 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 586 return (0); 587 } else { 588 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 589 "flags %#10x\n", __func__, 590 kc->keyidx, kc->hw_key_idx, kc->flags); 591 return (1); 592 } 593 } 594 595 static int 596 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 597 { 598 599 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 600 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 601 } 602 static int 603 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 604 { 605 606 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 607 } 608 #endif 609 610 static u_int 611 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 612 { 613 struct netdev_hw_addr_list *mc_list; 614 struct netdev_hw_addr *addr; 615 616 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 617 __func__, arg, sdl, cnt)); 618 619 mc_list = arg; 620 /* If it is on the list already skip it. */ 621 netdev_hw_addr_list_for_each(addr, mc_list) { 622 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 623 return (0); 624 } 625 626 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 627 if (addr == NULL) 628 return (0); 629 630 INIT_LIST_HEAD(&addr->addr_list); 631 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 632 /* XXX this should be a netdev function? */ 633 list_add(&addr->addr_list, &mc_list->addr_list); 634 mc_list->count++; 635 636 #ifdef LINUXKPI_DEBUG_80211 637 if (linuxkpi_debug_80211 & D80211_TRACE) 638 printf("%s:%d: mc_list count %d: added %6D\n", 639 __func__, __LINE__, mc_list->count, addr->addr, ":"); 640 #endif 641 642 return (1); 643 } 644 645 static void 646 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 647 { 648 struct lkpi_hw *lhw; 649 struct ieee80211_hw *hw; 650 struct netdev_hw_addr_list mc_list; 651 struct list_head *le, *next; 652 struct netdev_hw_addr *addr; 653 struct ieee80211vap *vap; 654 u64 mc; 655 unsigned int changed_flags, total_flags; 656 657 lhw = ic->ic_softc; 658 659 if (lhw->ops->prepare_multicast == NULL || 660 lhw->ops->configure_filter == NULL) 661 return; 662 663 if (!lhw->update_mc && !force) 664 return; 665 666 changed_flags = total_flags = 0; 667 mc_list.count = 0; 668 INIT_LIST_HEAD(&mc_list.addr_list); 669 if (ic->ic_allmulti == 0) { 670 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 671 if_foreach_llmaddr(vap->iv_ifp, 672 lkpi_ic_update_mcast_copy, &mc_list); 673 } else { 674 changed_flags |= FIF_ALLMULTI; 675 } 676 677 hw = LHW_TO_HW(lhw); 678 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 679 /* 680 * XXX-BZ make sure to get this sorted what is a change, 681 * what gets all set; what was already set? 682 */ 683 total_flags = changed_flags; 684 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 685 686 #ifdef LINUXKPI_DEBUG_80211 687 if (linuxkpi_debug_80211 & D80211_TRACE) 688 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 689 __func__, changed_flags, mc_list.count, total_flags); 690 #endif 691 692 if (mc_list.count != 0) { 693 list_for_each_safe(le, next, &mc_list.addr_list) { 694 addr = list_entry(le, struct netdev_hw_addr, addr_list); 695 free(addr, M_LKPI80211); 696 mc_list.count--; 697 } 698 } 699 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 700 __func__, &mc_list, mc_list.count)); 701 } 702 703 static enum ieee80211_bss_changed 704 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 705 struct ieee80211vap *vap, const char *_f, int _l) 706 { 707 enum ieee80211_bss_changed bss_changed; 708 709 bss_changed = 0; 710 711 #ifdef LINUXKPI_DEBUG_80211 712 if (linuxkpi_debug_80211 & D80211_TRACE) 713 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 714 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 715 "sync_device_ts %u bss_changed %#08x\n", 716 __func__, __LINE__, _f, _l, 717 vif->bss_conf.assoc, vif->bss_conf.aid, 718 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 719 vif->bss_conf.sync_dtim_count, 720 (uintmax_t)vif->bss_conf.sync_tsf, 721 vif->bss_conf.sync_device_ts, 722 bss_changed); 723 #endif 724 725 if (vif->bss_conf.beacon_int != ni->ni_intval) { 726 vif->bss_conf.beacon_int = ni->ni_intval; 727 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 728 if (vif->bss_conf.beacon_int < 16) 729 vif->bss_conf.beacon_int = 16; 730 bss_changed |= BSS_CHANGED_BEACON_INT; 731 } 732 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 733 vap->iv_dtim_period > 0) { 734 vif->bss_conf.dtim_period = vap->iv_dtim_period; 735 bss_changed |= BSS_CHANGED_BEACON_INFO; 736 } 737 738 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 739 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 740 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 741 742 #ifdef LINUXKPI_DEBUG_80211 743 if (linuxkpi_debug_80211 & D80211_TRACE) 744 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 745 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 746 "sync_device_ts %u bss_changed %#08x\n", 747 __func__, __LINE__, _f, _l, 748 vif->bss_conf.assoc, vif->bss_conf.aid, 749 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 750 vif->bss_conf.sync_dtim_count, 751 (uintmax_t)vif->bss_conf.sync_tsf, 752 vif->bss_conf.sync_device_ts, 753 bss_changed); 754 #endif 755 756 return (bss_changed); 757 } 758 759 static void 760 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 761 { 762 struct ieee80211_hw *hw; 763 int error; 764 765 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 766 return; 767 768 hw = LHW_TO_HW(lhw); 769 770 IEEE80211_UNLOCK(lhw->ic); 771 LKPI_80211_LHW_LOCK(lhw); 772 /* Need to cancel the scan. */ 773 lkpi_80211_mo_cancel_hw_scan(hw, vif); 774 775 /* Need to make sure we see ieee80211_scan_completed. */ 776 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 777 LKPI_80211_LHW_UNLOCK(lhw); 778 IEEE80211_LOCK(lhw->ic); 779 780 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 781 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 782 __func__, error, lhw, vif); 783 } 784 785 static void 786 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 787 { 788 struct lkpi_hw *lhw; 789 int error; 790 bool old; 791 792 old = hw->conf.flags & IEEE80211_CONF_IDLE; 793 if (old == new) 794 return; 795 796 hw->conf.flags ^= IEEE80211_CONF_IDLE; 797 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 798 if (error != 0 && error != EOPNOTSUPP) { 799 lhw = HW_TO_LHW(hw); 800 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 801 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 802 } 803 } 804 805 static void 806 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 807 struct lkpi_hw *lhw) 808 { 809 sta->aid = 0; 810 if (vif->bss_conf.assoc) { 811 struct ieee80211_hw *hw; 812 enum ieee80211_bss_changed changed; 813 814 lhw->update_mc = true; 815 lkpi_update_mcast_filter(lhw->ic, true); 816 817 changed = 0; 818 vif->bss_conf.assoc = false; 819 vif->bss_conf.aid = 0; 820 changed |= BSS_CHANGED_ASSOC; 821 /* 822 * This will remove the sta from firmware for iwlwifi. 823 * So confusing that they use state and flags and ... ^%$%#%$^. 824 */ 825 IMPROVE(); 826 hw = LHW_TO_HW(lhw); 827 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 828 changed); 829 830 lkpi_hw_conf_idle(hw, true); 831 } 832 } 833 834 static void 835 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 836 bool dequeue_seen, bool no_emptyq) 837 { 838 struct lkpi_txq *ltxq; 839 int tid; 840 841 /* Wake up all queues to know they are allocated in the driver. */ 842 for (tid = 0; tid < nitems(sta->txq); tid++) { 843 844 if (tid == IEEE80211_NUM_TIDS) { 845 IMPROVE("station specific?"); 846 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 847 continue; 848 } else if (tid >= hw->queues) 849 continue; 850 851 if (sta->txq[tid] == NULL) 852 continue; 853 854 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 855 if (dequeue_seen && !ltxq->seen_dequeue) 856 continue; 857 858 if (no_emptyq && skb_queue_empty(<xq->skbq)) 859 continue; 860 861 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 862 } 863 } 864 865 /* -------------------------------------------------------------------------- */ 866 867 static int 868 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 869 { 870 871 return (0); 872 } 873 874 /* lkpi_iv_newstate() handles the stop scan case generally. */ 875 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 876 877 static int 878 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 879 { 880 struct linuxkpi_ieee80211_channel *chan; 881 struct ieee80211_chanctx_conf *conf; 882 struct lkpi_hw *lhw; 883 struct ieee80211_hw *hw; 884 struct lkpi_vif *lvif; 885 struct ieee80211_vif *vif; 886 struct ieee80211_node *ni; 887 struct lkpi_sta *lsta; 888 struct ieee80211_sta *sta; 889 enum ieee80211_bss_changed bss_changed; 890 struct ieee80211_prep_tx_info prep_tx_info; 891 uint32_t changed; 892 int error; 893 894 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 895 if (chan == NULL) { 896 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 897 return (ESRCH); 898 } 899 900 lhw = vap->iv_ic->ic_softc; 901 hw = LHW_TO_HW(lhw); 902 lvif = VAP_TO_LVIF(vap); 903 vif = LVIF_TO_VIF(lvif); 904 905 ni = ieee80211_ref_node(vap->iv_bss); 906 907 IEEE80211_UNLOCK(vap->iv_ic); 908 909 /* Add chanctx (or if exists, change it). */ 910 if (vif->chanctx_conf != NULL) { 911 conf = vif->chanctx_conf; 912 IMPROVE("diff changes for changed, working on live copy, rcu"); 913 } else { 914 /* Keep separate alloc as in Linux this is rcu managed? */ 915 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 916 M_LKPI80211, M_WAITOK | M_ZERO); 917 } 918 919 conf->rx_chains_dynamic = 1; 920 conf->rx_chains_static = 1; 921 conf->radar_enabled = 922 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 923 conf->def.chan = chan; 924 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 925 conf->def.center_freq1 = chan->center_freq; 926 conf->def.center_freq2 = 0; 927 /* Responder ... */ 928 conf->min_def.chan = chan; 929 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 930 conf->min_def.center_freq1 = chan->center_freq; 931 conf->min_def.center_freq2 = 0; 932 IMPROVE("currently 20_NOHT only"); 933 934 error = 0; 935 if (vif->chanctx_conf != NULL) { 936 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 937 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 938 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 939 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 940 lkpi_80211_mo_change_chanctx(hw, conf, changed); 941 } else { 942 error = lkpi_80211_mo_add_chanctx(hw, conf); 943 if (error == 0 || error == EOPNOTSUPP) { 944 vif->bss_conf.chandef.chan = conf->def.chan; 945 vif->bss_conf.chandef.width = conf->def.width; 946 vif->bss_conf.chandef.center_freq1 = 947 conf->def.center_freq1; 948 vif->bss_conf.chandef.center_freq2 = 949 conf->def.center_freq2; 950 } else { 951 goto out; 952 } 953 /* Assign vif chanctx. */ 954 if (error == 0) 955 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 956 if (error == EOPNOTSUPP) 957 error = 0; 958 if (error != 0) { 959 lkpi_80211_mo_remove_chanctx(hw, conf); 960 free(conf, M_LKPI80211); 961 goto out; 962 } 963 } 964 IMPROVE("update radiotap chan fields too"); 965 966 /* Set bss info (bss_info_changed). */ 967 bss_changed = 0; 968 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 969 bss_changed |= BSS_CHANGED_BSSID; 970 vif->bss_conf.txpower = ni->ni_txpower; 971 bss_changed |= BSS_CHANGED_TXPOWER; 972 vif->bss_conf.idle = false; 973 bss_changed |= BSS_CHANGED_IDLE; 974 975 /* Should almost assert it is this. */ 976 vif->bss_conf.assoc = false; 977 vif->bss_conf.aid = 0; 978 979 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 980 981 /* RATES */ 982 IMPROVE("bss info: not all needs to come now and rates are missing"); 983 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 984 985 /* 986 * This is a bandaid for now. If we went through (*iv_update_bss)() 987 * and then removed the lsta we end up here without a lsta and have 988 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 989 * would normally do. 990 * XXX-BZ I do not like this but currently we have no good way of 991 * intercepting the bss swap and state changes and packets going out 992 * workflow so live with this. It is a compat layer after all. 993 */ 994 if (ni->ni_drv_data == NULL) { 995 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 996 if (lsta == NULL) { 997 error = ENOMEM; 998 goto out; 999 } 1000 lsta->ni = ieee80211_ref_node(ni); 1001 LKPI_80211_LVIF_LOCK(lvif); 1002 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1003 LKPI_80211_LVIF_UNLOCK(lvif); 1004 } else { 1005 lsta = ni->ni_drv_data; 1006 } 1007 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1008 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1009 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1010 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1011 sta = LSTA_TO_STA(lsta); 1012 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1013 if (error != 0) { 1014 IMPROVE("do we need to undo the chan ctx?"); 1015 goto out; 1016 } 1017 #if 0 1018 lsta->added_to_drv = true; /* mo manages. */ 1019 #endif 1020 1021 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1022 1023 /* 1024 * Wakeup all queues now that sta is there so we have as much time to 1025 * possibly prepare the queue in the driver to be ready for the 1st 1026 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1027 * is no guarantee or way to check. 1028 * XXX-BZ and by now we know that this does not work on all drivers 1029 * for all queues. 1030 */ 1031 lkpi_wake_tx_queues(hw, sta, false, false); 1032 1033 { 1034 int i, count; 1035 1036 for (i = 3 * (hw->queues + 1); i > 0; i--) { 1037 struct lkpi_txq *ltxq; 1038 int tid; 1039 1040 count = 0; 1041 /* Wake up all queues to know they are allocated in the driver. */ 1042 for (tid = 0; tid < nitems(sta->txq); tid++) { 1043 1044 if (tid == IEEE80211_NUM_TIDS) { 1045 IMPROVE("station specific?"); 1046 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1047 continue; 1048 } else if (tid >= hw->queues) 1049 continue; 1050 1051 if (sta->txq[tid] == NULL) 1052 continue; 1053 1054 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1055 if (!ltxq->seen_dequeue) 1056 count++; 1057 } 1058 if (count == 0) 1059 break; 1060 #ifdef LINUXKPI_DEBUG_80211 1061 if (count > 0) 1062 ic_printf(vap->iv_ic, "%s: waiting for %d queues " 1063 "to be allocated by driver\n", __func__, count); 1064 #endif 1065 pause("lkpi80211txq", hz/10); 1066 } 1067 #ifdef LINUXKPI_DEBUG_80211 1068 if (count > 0) 1069 ic_printf(vap->iv_ic, "%s: %d queues still not " 1070 "allocated by driver\n", __func__, count); 1071 #endif 1072 } 1073 1074 /* Start mgd_prepare_tx. */ 1075 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1076 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1077 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1078 lsta->in_mgd = true; 1079 1080 /* 1081 * What is going to happen next: 1082 * - <twiddle> .. we should end up in "auth_to_assoc" 1083 * - event_callback 1084 * - update sta_state (NONE to AUTH) 1085 * - mgd_complete_tx 1086 * (ideally we'd do that on a callback for something else ...) 1087 */ 1088 1089 out: 1090 IEEE80211_LOCK(vap->iv_ic); 1091 if (ni != NULL) 1092 ieee80211_free_node(ni); 1093 return (error); 1094 } 1095 1096 static int 1097 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1098 { 1099 struct lkpi_hw *lhw; 1100 struct ieee80211_hw *hw; 1101 struct lkpi_vif *lvif; 1102 struct ieee80211_vif *vif; 1103 struct ieee80211_node *ni; 1104 struct lkpi_sta *lsta; 1105 struct ieee80211_sta *sta; 1106 struct ieee80211_prep_tx_info prep_tx_info; 1107 int error; 1108 1109 lhw = vap->iv_ic->ic_softc; 1110 hw = LHW_TO_HW(lhw); 1111 lvif = VAP_TO_LVIF(vap); 1112 vif = LVIF_TO_VIF(lvif); 1113 1114 /* Keep ni around. */ 1115 ni = ieee80211_ref_node(vap->iv_bss); 1116 lsta = ni->ni_drv_data; 1117 sta = LSTA_TO_STA(lsta); 1118 1119 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1120 1121 IEEE80211_UNLOCK(vap->iv_ic); 1122 1123 /* flush, drop. */ 1124 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1125 1126 /* Wake tx queues to get packet(s) out. */ 1127 lkpi_wake_tx_queues(hw, sta, true, true); 1128 1129 /* flush, no drop */ 1130 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1131 1132 /* End mgd_complete_tx. */ 1133 if (lsta->in_mgd) { 1134 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1135 prep_tx_info.success = false; 1136 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1137 lsta->in_mgd = false; 1138 } 1139 1140 /* sync_rx_queues */ 1141 lkpi_80211_mo_sync_rx_queues(hw); 1142 1143 /* sta_pre_rcu_remove */ 1144 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1145 1146 /* Take the station down. */ 1147 1148 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1149 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1150 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1151 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1152 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1153 if (error != 0) { 1154 IMPROVE("do we need to undo the chan ctx?"); 1155 goto out; 1156 } 1157 #if 0 1158 lsta->added_to_drv = false; /* mo manages. */ 1159 #endif 1160 1161 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1162 1163 lkpi_lsta_remove(lsta, lvif); 1164 1165 /* conf_tx */ 1166 1167 /* Take the chan ctx down. */ 1168 if (vif->chanctx_conf != NULL) { 1169 struct ieee80211_chanctx_conf *conf; 1170 1171 conf = vif->chanctx_conf; 1172 /* Remove vif context. */ 1173 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1174 /* NB: vif->chanctx_conf is NULL now. */ 1175 1176 /* Remove chan ctx. */ 1177 lkpi_80211_mo_remove_chanctx(hw, conf); 1178 free(conf, M_LKPI80211); 1179 } 1180 1181 out: 1182 IEEE80211_LOCK(vap->iv_ic); 1183 if (ni != NULL) 1184 ieee80211_free_node(ni); 1185 return (error); 1186 } 1187 1188 static int 1189 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1190 { 1191 int error; 1192 1193 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1194 if (error == 0) 1195 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1196 return (error); 1197 } 1198 1199 static int 1200 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1201 { 1202 struct lkpi_hw *lhw; 1203 struct ieee80211_hw *hw; 1204 struct lkpi_vif *lvif; 1205 struct ieee80211_vif *vif; 1206 struct ieee80211_node *ni; 1207 struct lkpi_sta *lsta; 1208 struct ieee80211_sta *sta; 1209 struct ieee80211_prep_tx_info prep_tx_info; 1210 int error; 1211 1212 lhw = vap->iv_ic->ic_softc; 1213 hw = LHW_TO_HW(lhw); 1214 lvif = VAP_TO_LVIF(vap); 1215 vif = LVIF_TO_VIF(lvif); 1216 1217 IEEE80211_UNLOCK(vap->iv_ic); 1218 ni = NULL; 1219 1220 /* Finish auth. */ 1221 IMPROVE("event callback"); 1222 1223 /* Update sta_state (NONE to AUTH). */ 1224 ni = ieee80211_ref_node(vap->iv_bss); 1225 lsta = ni->ni_drv_data; 1226 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1227 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1228 "NONE: %#x\n", __func__, lsta, lsta->state)); 1229 sta = LSTA_TO_STA(lsta); 1230 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1231 if (error != 0) 1232 goto out; 1233 1234 /* End mgd_complete_tx. */ 1235 if (lsta->in_mgd) { 1236 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1237 prep_tx_info.success = true; 1238 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1239 lsta->in_mgd = false; 1240 } 1241 1242 /* Now start assoc. */ 1243 1244 /* Start mgd_prepare_tx. */ 1245 if (!lsta->in_mgd) { 1246 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1247 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1248 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1249 lsta->in_mgd = true; 1250 } 1251 1252 /* Wake tx queue to get packet out. */ 1253 lkpi_wake_tx_queues(hw, sta, true, true); 1254 1255 /* 1256 * <twiddle> .. we end up in "assoc_to_run" 1257 * - update sta_state (AUTH to ASSOC) 1258 * - conf_tx [all] 1259 * - bss_info_changed (assoc, aid, ssid, ..) 1260 * - change_chanctx (if needed) 1261 * - event_callback 1262 * - mgd_complete_tx 1263 */ 1264 1265 out: 1266 IEEE80211_LOCK(vap->iv_ic); 1267 if (ni != NULL) 1268 ieee80211_free_node(ni); 1269 return (error); 1270 } 1271 1272 /* auth_to_auth, assoc_to_assoc. */ 1273 static int 1274 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1275 { 1276 struct lkpi_hw *lhw; 1277 struct ieee80211_hw *hw; 1278 struct lkpi_vif *lvif; 1279 struct ieee80211_vif *vif; 1280 struct ieee80211_node *ni; 1281 struct lkpi_sta *lsta; 1282 struct ieee80211_prep_tx_info prep_tx_info; 1283 1284 lhw = vap->iv_ic->ic_softc; 1285 hw = LHW_TO_HW(lhw); 1286 lvif = VAP_TO_LVIF(vap); 1287 vif = LVIF_TO_VIF(lvif); 1288 1289 ni = ieee80211_ref_node(vap->iv_bss); 1290 1291 IEEE80211_UNLOCK(vap->iv_ic); 1292 lsta = ni->ni_drv_data; 1293 1294 IMPROVE("event callback?"); 1295 1296 /* End mgd_complete_tx. */ 1297 if (lsta->in_mgd) { 1298 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1299 prep_tx_info.success = false; 1300 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1301 lsta->in_mgd = false; 1302 } 1303 1304 /* Now start assoc. */ 1305 1306 /* Start mgd_prepare_tx. */ 1307 if (!lsta->in_mgd) { 1308 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1309 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1310 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1311 lsta->in_mgd = true; 1312 } 1313 1314 IEEE80211_LOCK(vap->iv_ic); 1315 if (ni != NULL) 1316 ieee80211_free_node(ni); 1317 1318 return (0); 1319 } 1320 1321 static int 1322 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1323 { 1324 struct lkpi_hw *lhw; 1325 struct ieee80211_hw *hw; 1326 struct lkpi_vif *lvif; 1327 struct ieee80211_vif *vif; 1328 struct ieee80211_node *ni; 1329 struct lkpi_sta *lsta; 1330 struct ieee80211_sta *sta; 1331 struct ieee80211_prep_tx_info prep_tx_info; 1332 enum ieee80211_bss_changed bss_changed; 1333 int error; 1334 1335 lhw = vap->iv_ic->ic_softc; 1336 hw = LHW_TO_HW(lhw); 1337 lvif = VAP_TO_LVIF(vap); 1338 vif = LVIF_TO_VIF(lvif); 1339 1340 /* Keep ni around. */ 1341 ni = ieee80211_ref_node(vap->iv_bss); 1342 lsta = ni->ni_drv_data; 1343 sta = LSTA_TO_STA(lsta); 1344 1345 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1346 1347 IEEE80211_UNLOCK(vap->iv_ic); 1348 1349 /* flush, drop. */ 1350 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1351 1352 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1353 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1354 !lsta->in_mgd) { 1355 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1356 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1357 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1358 lsta->in_mgd = true; 1359 } 1360 1361 IEEE80211_LOCK(vap->iv_ic); 1362 1363 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1364 error = lvif->iv_newstate(vap, nstate, arg); 1365 if (error != 0) 1366 goto outni; 1367 1368 IEEE80211_UNLOCK(vap->iv_ic); 1369 1370 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1371 1372 /* Wake tx queues to get packet(s) out. */ 1373 lkpi_wake_tx_queues(hw, sta, true, true); 1374 1375 /* flush, no drop */ 1376 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1377 1378 /* End mgd_complete_tx. */ 1379 if (lsta->in_mgd) { 1380 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1381 prep_tx_info.success = false; 1382 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1383 lsta->in_mgd = false; 1384 } 1385 1386 /* sync_rx_queues */ 1387 lkpi_80211_mo_sync_rx_queues(hw); 1388 1389 /* sta_pre_rcu_remove */ 1390 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1391 1392 /* Take the station down. */ 1393 1394 /* Update sta and change state (from AUTH) to NONE. */ 1395 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1396 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1397 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1398 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1399 if (error != 0) 1400 goto out; 1401 1402 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1403 1404 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1405 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1406 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1407 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1408 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1409 if (error != 0) { 1410 IMPROVE("do we need to undo the chan ctx?"); 1411 goto out; 1412 } 1413 #if 0 1414 lsta->added_to_drv = false; /* mo manages. */ 1415 #endif 1416 1417 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1418 1419 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1420 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1421 lkpi_disassoc(sta, vif, lhw); 1422 1423 IMPROVE("Any bss_info changes to announce?"); 1424 bss_changed = 0; 1425 vif->bss_conf.qos = 0; 1426 bss_changed |= BSS_CHANGED_QOS; 1427 vif->bss_conf.ssid_len = 0; 1428 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1429 bss_changed |= BSS_CHANGED_BSSID; 1430 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1431 1432 lkpi_lsta_remove(lsta, lvif); 1433 1434 /* conf_tx */ 1435 1436 /* Take the chan ctx down. */ 1437 if (vif->chanctx_conf != NULL) { 1438 struct ieee80211_chanctx_conf *conf; 1439 1440 conf = vif->chanctx_conf; 1441 /* Remove vif context. */ 1442 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1443 /* NB: vif->chanctx_conf is NULL now. */ 1444 1445 /* Remove chan ctx. */ 1446 lkpi_80211_mo_remove_chanctx(hw, conf); 1447 free(conf, M_LKPI80211); 1448 } 1449 1450 error = EALREADY; 1451 out: 1452 IEEE80211_LOCK(vap->iv_ic); 1453 outni: 1454 if (ni != NULL) 1455 ieee80211_free_node(ni); 1456 return (error); 1457 } 1458 1459 static int 1460 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1461 { 1462 int error; 1463 1464 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1465 if (error != 0 && error != EALREADY) 1466 return (error); 1467 1468 /* At this point iv_bss is long a new node! */ 1469 1470 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1471 return (error); 1472 } 1473 1474 static int 1475 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1476 { 1477 int error; 1478 1479 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1480 return (error); 1481 } 1482 1483 static int 1484 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1485 { 1486 int error; 1487 1488 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1489 return (error); 1490 } 1491 1492 static int 1493 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1494 { 1495 struct lkpi_hw *lhw; 1496 struct ieee80211_hw *hw; 1497 struct lkpi_vif *lvif; 1498 struct ieee80211_vif *vif; 1499 struct ieee80211_node *ni; 1500 struct lkpi_sta *lsta; 1501 struct ieee80211_sta *sta; 1502 struct ieee80211_prep_tx_info prep_tx_info; 1503 enum ieee80211_bss_changed bss_changed; 1504 int error; 1505 1506 lhw = vap->iv_ic->ic_softc; 1507 hw = LHW_TO_HW(lhw); 1508 lvif = VAP_TO_LVIF(vap); 1509 vif = LVIF_TO_VIF(lvif); 1510 1511 IEEE80211_UNLOCK(vap->iv_ic); 1512 1513 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1514 "and to lesser extend ieee80211_notify_node_join"); 1515 1516 ni = ieee80211_ref_node(vap->iv_bss); 1517 lsta = ni->ni_drv_data; 1518 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1519 sta = LSTA_TO_STA(lsta); 1520 1521 IMPROVE("wme / conf_tx [all]"); 1522 1523 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1524 bss_changed = 0; 1525 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1526 vif->bss_conf.assoc = true; 1527 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1528 bss_changed |= BSS_CHANGED_ASSOC; 1529 } 1530 /* We set SSID but this is not BSSID! */ 1531 vif->bss_conf.ssid_len = ni->ni_esslen; 1532 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1533 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1534 vif->bss_conf.use_short_preamble) { 1535 vif->bss_conf.use_short_preamble ^= 1; 1536 /* bss_changed |= BSS_CHANGED_??? */ 1537 } 1538 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1539 vif->bss_conf.use_short_slot) { 1540 vif->bss_conf.use_short_slot ^= 1; 1541 /* bss_changed |= BSS_CHANGED_??? */ 1542 } 1543 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1544 vif->bss_conf.qos) { 1545 vif->bss_conf.qos ^= 1; 1546 bss_changed |= BSS_CHANGED_QOS; 1547 } 1548 1549 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1550 1551 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1552 1553 /* This MUST come after the bss_info_changed. */ 1554 /* Finish assoc. */ 1555 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1556 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1557 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1558 sta->aid = IEEE80211_NODE_AID(ni); 1559 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1560 if (error != 0) 1561 goto out; 1562 1563 /* - change_chanctx (if needed) 1564 * - event_callback 1565 */ 1566 1567 /* End mgd_complete_tx. */ 1568 if (lsta->in_mgd) { 1569 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1570 prep_tx_info.success = true; 1571 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1572 lsta->in_mgd = false; 1573 } 1574 1575 lkpi_hw_conf_idle(hw, false); 1576 1577 /* 1578 * And then: 1579 * - (more packets)? 1580 * - set_key 1581 * - set_default_unicast_key 1582 * - set_key (?) 1583 * - ipv6_addr_change (?) 1584 */ 1585 /* Prepare_multicast && configure_filter. */ 1586 lhw->update_mc = true; 1587 lkpi_update_mcast_filter(vap->iv_ic, true); 1588 1589 if (!ieee80211_node_is_authorized(ni)) { 1590 IMPROVE("net80211 does not consider node authorized"); 1591 } 1592 1593 /* Update sta_state (ASSOC to AUTHORIZED). */ 1594 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1595 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1596 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1597 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1598 if (error != 0) { 1599 IMPROVE("undo some changes?"); 1600 goto out; 1601 } 1602 1603 /* - drv_config (?) 1604 * - bss_info_changed 1605 * - set_rekey_data (?) 1606 * 1607 * And now we should be passing packets. 1608 */ 1609 IMPROVE("Need that bssid setting, and the keys"); 1610 1611 bss_changed = 0; 1612 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1613 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1614 1615 out: 1616 IEEE80211_LOCK(vap->iv_ic); 1617 if (ni != NULL) 1618 ieee80211_free_node(ni); 1619 return (error); 1620 } 1621 1622 static int 1623 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1624 { 1625 int error; 1626 1627 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1628 if (error == 0) 1629 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1630 return (error); 1631 } 1632 1633 static int 1634 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1635 { 1636 struct lkpi_hw *lhw; 1637 struct ieee80211_hw *hw; 1638 struct lkpi_vif *lvif; 1639 struct ieee80211_vif *vif; 1640 struct ieee80211_node *ni; 1641 struct lkpi_sta *lsta; 1642 struct ieee80211_sta *sta; 1643 struct ieee80211_prep_tx_info prep_tx_info; 1644 #if 0 1645 enum ieee80211_bss_changed bss_changed; 1646 #endif 1647 int error; 1648 1649 lhw = vap->iv_ic->ic_softc; 1650 hw = LHW_TO_HW(lhw); 1651 lvif = VAP_TO_LVIF(vap); 1652 vif = LVIF_TO_VIF(lvif); 1653 1654 /* Keep ni around. */ 1655 ni = ieee80211_ref_node(vap->iv_bss); 1656 lsta = ni->ni_drv_data; 1657 sta = LSTA_TO_STA(lsta); 1658 1659 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1660 1661 IEEE80211_UNLOCK(vap->iv_ic); 1662 1663 /* flush, drop. */ 1664 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1665 1666 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1667 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1668 !lsta->in_mgd) { 1669 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1670 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1671 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1672 lsta->in_mgd = true; 1673 } 1674 1675 IEEE80211_LOCK(vap->iv_ic); 1676 1677 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1678 error = lvif->iv_newstate(vap, nstate, arg); 1679 if (error != 0) 1680 goto outni; 1681 1682 IEEE80211_UNLOCK(vap->iv_ic); 1683 1684 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1685 1686 /* Wake tx queues to get packet(s) out. */ 1687 lkpi_wake_tx_queues(hw, sta, true, true); 1688 1689 /* flush, no drop */ 1690 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1691 1692 /* End mgd_complete_tx. */ 1693 if (lsta->in_mgd) { 1694 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1695 prep_tx_info.success = false; 1696 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1697 lsta->in_mgd = false; 1698 } 1699 1700 #if 0 1701 /* sync_rx_queues */ 1702 lkpi_80211_mo_sync_rx_queues(hw); 1703 1704 /* sta_pre_rcu_remove */ 1705 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1706 #endif 1707 1708 /* Take the station down. */ 1709 1710 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1711 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1712 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1713 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1714 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1715 if (error != 0) 1716 goto out; 1717 1718 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1719 1720 /* Update sta_state (ASSOC to AUTH). */ 1721 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1722 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1723 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1724 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1725 if (error != 0) 1726 goto out; 1727 1728 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1729 1730 #if 0 1731 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1732 lkpi_disassoc(sta, vif, lhw); 1733 #endif 1734 1735 error = EALREADY; 1736 out: 1737 IEEE80211_LOCK(vap->iv_ic); 1738 outni: 1739 if (ni != NULL) 1740 ieee80211_free_node(ni); 1741 return (error); 1742 } 1743 1744 static int 1745 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1746 { 1747 struct lkpi_hw *lhw; 1748 struct ieee80211_hw *hw; 1749 struct lkpi_vif *lvif; 1750 struct ieee80211_vif *vif; 1751 struct ieee80211_node *ni; 1752 struct lkpi_sta *lsta; 1753 struct ieee80211_sta *sta; 1754 struct ieee80211_prep_tx_info prep_tx_info; 1755 enum ieee80211_bss_changed bss_changed; 1756 int error; 1757 1758 lhw = vap->iv_ic->ic_softc; 1759 hw = LHW_TO_HW(lhw); 1760 lvif = VAP_TO_LVIF(vap); 1761 vif = LVIF_TO_VIF(lvif); 1762 1763 /* Keep ni around. */ 1764 ni = ieee80211_ref_node(vap->iv_bss); 1765 lsta = ni->ni_drv_data; 1766 sta = LSTA_TO_STA(lsta); 1767 1768 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1769 1770 IEEE80211_UNLOCK(vap->iv_ic); 1771 1772 /* flush, drop. */ 1773 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1774 1775 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1776 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1777 !lsta->in_mgd) { 1778 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1779 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1780 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1781 lsta->in_mgd = true; 1782 } 1783 1784 IEEE80211_LOCK(vap->iv_ic); 1785 1786 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1787 error = lvif->iv_newstate(vap, nstate, arg); 1788 if (error != 0) 1789 goto outni; 1790 1791 IEEE80211_UNLOCK(vap->iv_ic); 1792 1793 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1794 1795 /* Wake tx queues to get packet(s) out. */ 1796 lkpi_wake_tx_queues(hw, sta, true, true); 1797 1798 /* flush, no drop */ 1799 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1800 1801 /* End mgd_complete_tx. */ 1802 if (lsta->in_mgd) { 1803 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1804 prep_tx_info.success = false; 1805 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1806 lsta->in_mgd = false; 1807 } 1808 1809 /* sync_rx_queues */ 1810 lkpi_80211_mo_sync_rx_queues(hw); 1811 1812 /* sta_pre_rcu_remove */ 1813 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1814 1815 /* Take the station down. */ 1816 1817 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1818 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1819 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1820 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1821 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1822 if (error != 0) 1823 goto out; 1824 1825 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1826 1827 /* Update sta_state (ASSOC to AUTH). */ 1828 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1829 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1830 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1831 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1832 if (error != 0) 1833 goto out; 1834 1835 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1836 1837 /* Update sta and change state (from AUTH) to NONE. */ 1838 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1839 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1840 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1841 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1842 if (error != 0) 1843 goto out; 1844 1845 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1846 1847 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1848 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1849 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1850 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1851 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1852 if (error != 0) { 1853 IMPROVE("do we need to undo the chan ctx?"); 1854 goto out; 1855 } 1856 #if 0 1857 lsta->added_to_drv = false; /* mo manages. */ 1858 #endif 1859 1860 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1861 1862 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1863 /* 1864 * One would expect this to happen when going off AUTHORIZED. 1865 * See comment there; removes the sta from fw. 1866 */ 1867 lkpi_disassoc(sta, vif, lhw); 1868 1869 IMPROVE("Any bss_info changes to announce?"); 1870 bss_changed = 0; 1871 vif->bss_conf.qos = 0; 1872 bss_changed |= BSS_CHANGED_QOS; 1873 vif->bss_conf.ssid_len = 0; 1874 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1875 bss_changed |= BSS_CHANGED_BSSID; 1876 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1877 1878 lkpi_lsta_remove(lsta, lvif); 1879 1880 /* conf_tx */ 1881 1882 /* Take the chan ctx down. */ 1883 if (vif->chanctx_conf != NULL) { 1884 struct ieee80211_chanctx_conf *conf; 1885 1886 conf = vif->chanctx_conf; 1887 /* Remove vif context. */ 1888 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1889 /* NB: vif->chanctx_conf is NULL now. */ 1890 1891 /* Remove chan ctx. */ 1892 lkpi_80211_mo_remove_chanctx(hw, conf); 1893 free(conf, M_LKPI80211); 1894 } 1895 1896 error = EALREADY; 1897 out: 1898 IEEE80211_LOCK(vap->iv_ic); 1899 outni: 1900 if (ni != NULL) 1901 ieee80211_free_node(ni); 1902 return (error); 1903 } 1904 1905 static int 1906 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1907 { 1908 1909 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1910 } 1911 1912 static int 1913 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1914 { 1915 int error; 1916 1917 error = lkpi_sta_run_to_init(vap, nstate, arg); 1918 if (error != 0 && error != EALREADY) 1919 return (error); 1920 1921 /* At this point iv_bss is long a new node! */ 1922 1923 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1924 return (error); 1925 } 1926 1927 /* -------------------------------------------------------------------------- */ 1928 1929 /* 1930 * The matches the documented state changes in net80211::sta_newstate(). 1931 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1932 * there are "invalid" (so there is a room for failure here). 1933 */ 1934 struct fsm_state { 1935 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1936 enum ieee80211_state ostate; 1937 enum ieee80211_state nstate; 1938 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1939 } sta_state_fsm[] = { 1940 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1941 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1942 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1943 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1944 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1945 1946 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1947 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1948 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1949 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1950 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1951 1952 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1953 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1954 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1955 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1956 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1957 1958 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1959 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1960 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1961 1962 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1963 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1964 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1965 1966 /* Dummy at the end without handler. */ 1967 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1968 }; 1969 1970 static int 1971 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1972 { 1973 struct ieee80211com *ic; 1974 struct lkpi_hw *lhw; 1975 struct lkpi_vif *lvif; 1976 struct ieee80211_vif *vif; 1977 struct fsm_state *s; 1978 enum ieee80211_state ostate; 1979 int error; 1980 1981 ic = vap->iv_ic; 1982 IEEE80211_LOCK_ASSERT(ic); 1983 ostate = vap->iv_state; 1984 1985 #ifdef LINUXKPI_DEBUG_80211 1986 if (linuxkpi_debug_80211 & D80211_TRACE) 1987 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1988 __func__, __LINE__, vap, nstate, arg); 1989 #endif 1990 1991 if (vap->iv_opmode == IEEE80211_M_STA) { 1992 1993 lhw = ic->ic_softc; 1994 lvif = VAP_TO_LVIF(vap); 1995 vif = LVIF_TO_VIF(lvif); 1996 1997 /* No need to replicate this in most state handlers. */ 1998 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1999 lkpi_stop_hw_scan(lhw, vif); 2000 2001 s = sta_state_fsm; 2002 2003 } else { 2004 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2005 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2006 return (ENOSYS); 2007 } 2008 2009 error = 0; 2010 for (; s->handler != NULL; s++) { 2011 if (ostate == s->ostate && nstate == s->nstate) { 2012 #ifdef LINUXKPI_DEBUG_80211 2013 if (linuxkpi_debug_80211 & D80211_TRACE) 2014 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2015 " %d (%s): arg %d.\n", __func__, 2016 ostate, ieee80211_state_name[ostate], 2017 nstate, ieee80211_state_name[nstate], arg); 2018 #endif 2019 error = s->handler(vap, nstate, arg); 2020 break; 2021 } 2022 } 2023 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2024 2025 if (s->handler == NULL) { 2026 IMPROVE("turn this into a KASSERT\n"); 2027 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2028 "%d (%s) -> %d (%s)\n", __func__, 2029 ostate, ieee80211_state_name[ostate], 2030 nstate, ieee80211_state_name[nstate]); 2031 return (ENOSYS); 2032 } 2033 2034 if (error == EALREADY) { 2035 #ifdef LINUXKPI_DEBUG_80211 2036 if (linuxkpi_debug_80211 & D80211_TRACE) 2037 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2038 "%d (%s): iv_newstate already handled: %d.\n", 2039 __func__, ostate, ieee80211_state_name[ostate], 2040 nstate, ieee80211_state_name[nstate], error); 2041 #endif 2042 return (0); 2043 } 2044 2045 if (error != 0) { 2046 /* XXX-BZ currently expected so ignore. */ 2047 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2048 "%d (%s) -> %d (%s)\n", __func__, error, 2049 ostate, ieee80211_state_name[ostate], 2050 nstate, ieee80211_state_name[nstate]); 2051 /* return (error); */ 2052 } 2053 2054 #ifdef LINUXKPI_DEBUG_80211 2055 if (linuxkpi_debug_80211 & D80211_TRACE) 2056 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2057 "calling net80211 parent\n", 2058 __func__, __LINE__, vap, nstate, arg); 2059 #endif 2060 2061 return (lvif->iv_newstate(vap, nstate, arg)); 2062 } 2063 2064 /* -------------------------------------------------------------------------- */ 2065 2066 /* 2067 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2068 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2069 * new node without us knowing and thus our ni/lsta are out of sync. 2070 */ 2071 static struct ieee80211_node * 2072 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2073 { 2074 struct lkpi_vif *lvif; 2075 struct ieee80211_node *obss; 2076 struct lkpi_sta *lsta; 2077 2078 lvif = VAP_TO_LVIF(vap); 2079 obss = vap->iv_bss; 2080 2081 #ifdef LINUXKPI_DEBUG_80211 2082 if (linuxkpi_debug_80211 & D80211_TRACE) 2083 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2084 "ni %p ni_drv_data %p\n", __func__, 2085 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2086 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2087 #endif 2088 2089 /* Nothing to copy from. Just return. */ 2090 if (obss == NULL || obss->ni_drv_data == NULL) 2091 goto out; 2092 2093 /* Nothing to copy to. Just return. */ 2094 IMPROVE("clearing the obss might still be needed?"); 2095 if (ni == NULL) 2096 goto out; 2097 2098 /* Nothing changed? panic? */ 2099 if (obss == ni) 2100 goto out; 2101 2102 lsta = obss->ni_drv_data; 2103 obss->ni_drv_data = ni->ni_drv_data; 2104 ni->ni_drv_data = lsta; 2105 if (lsta != NULL) 2106 lsta->ni = ni; 2107 lsta = obss->ni_drv_data; 2108 if (lsta != NULL) 2109 lsta->ni = obss; 2110 2111 out: 2112 return (lvif->iv_update_bss(vap, ni)); 2113 } 2114 2115 static int 2116 lkpi_ic_wme_update(struct ieee80211com *ic) 2117 { 2118 /* This needs queuing and go at the right moment. */ 2119 #ifdef WITH_WME_UPDATE 2120 struct ieee80211vap *vap; 2121 struct lkpi_hw *lhw; 2122 struct ieee80211_hw *hw; 2123 struct lkpi_vif *lvif; 2124 struct ieee80211_vif *vif; 2125 struct chanAccParams chp; 2126 struct wmeParams wmeparr[WME_NUM_AC]; 2127 struct ieee80211_tx_queue_params txqp; 2128 enum ieee80211_bss_changed changed; 2129 int error; 2130 uint16_t ac; 2131 #endif 2132 2133 IMPROVE(); 2134 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2135 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2136 2137 #ifdef WITH_WME_UPDATE 2138 vap = TAILQ_FIRST(&ic->ic_vaps); 2139 if (vap == NULL) 2140 return (0); 2141 2142 /* We should factor this out into per-vap (*wme_update). */ 2143 lhw = ic->ic_softc; 2144 if (lhw->ops->conf_tx == NULL) 2145 return (0); 2146 2147 /* XXX-BZ check amount of hw queues */ 2148 hw = LHW_TO_HW(lhw); 2149 lvif = VAP_TO_LVIF(vap); 2150 vif = LVIF_TO_VIF(lvif); 2151 2152 ieee80211_wme_ic_getparams(ic, &chp); 2153 IEEE80211_LOCK(ic); 2154 for (ac = 0; ac < WME_NUM_AC; ac++) 2155 wmeparr[ac] = chp.cap_wmeParams[ac]; 2156 IEEE80211_UNLOCK(ic); 2157 2158 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2159 LKPI_80211_LHW_LOCK(lhw); 2160 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2161 struct wmeParams *wmep; 2162 2163 /* XXX-BZ should keep this in lvif? */ 2164 wmep = &wmeparr[ac]; 2165 bzero(&txqp, sizeof(txqp)); 2166 txqp.cw_min = wmep->wmep_logcwmin; 2167 txqp.cw_max = wmep->wmep_logcwmax; 2168 txqp.txop = wmep->wmep_txopLimit; 2169 txqp.aifs = wmep->wmep_aifsn; 2170 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2171 if (error != 0) 2172 printf("%s: conf_tx ac %u failed %d\n", 2173 __func__, ac, error); 2174 } 2175 LKPI_80211_LHW_UNLOCK(lhw); 2176 changed = BSS_CHANGED_QOS; 2177 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2178 #endif 2179 2180 return (0); 2181 } 2182 2183 static struct ieee80211vap * 2184 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2185 int unit, enum ieee80211_opmode opmode, int flags, 2186 const uint8_t bssid[IEEE80211_ADDR_LEN], 2187 const uint8_t mac[IEEE80211_ADDR_LEN]) 2188 { 2189 struct lkpi_hw *lhw; 2190 struct ieee80211_hw *hw; 2191 struct lkpi_vif *lvif; 2192 struct ieee80211vap *vap; 2193 struct ieee80211_vif *vif; 2194 enum ieee80211_bss_changed changed; 2195 size_t len; 2196 int error; 2197 2198 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2199 return (NULL); 2200 2201 lhw = ic->ic_softc; 2202 hw = LHW_TO_HW(lhw); 2203 2204 len = sizeof(*lvif); 2205 len += hw->vif_data_size; /* vif->drv_priv */ 2206 2207 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2208 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2209 TAILQ_INIT(&lvif->lsta_head); 2210 vap = LVIF_TO_VAP(lvif); 2211 2212 vif = LVIF_TO_VIF(lvif); 2213 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2214 vif->p2p = false; 2215 vif->probe_req_reg = false; 2216 vif->type = lkpi_opmode_to_vif_type(opmode); 2217 lvif->wdev.iftype = vif->type; 2218 /* Need to fill in other fields as well. */ 2219 IMPROVE(); 2220 2221 /* XXX-BZ hardcoded for now! */ 2222 #if 1 2223 vif->chanctx_conf = NULL; 2224 vif->bss_conf.idle = true; 2225 vif->bss_conf.ps = false; 2226 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2227 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2228 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2229 vif->bss_conf.qos = false; 2230 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2231 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2232 vif->bss_conf.assoc = false; 2233 vif->bss_conf.aid = 0; 2234 #endif 2235 #if 0 2236 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2237 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2238 vif->bss_conf.beacon_int = ic->ic_bintval; 2239 /* iwlwifi bug. */ 2240 if (vif->bss_conf.beacon_int < 16) 2241 vif->bss_conf.beacon_int = 16; 2242 #endif 2243 IMPROVE(); 2244 2245 error = lkpi_80211_mo_start(hw); 2246 if (error != 0) { 2247 printf("%s: failed to start hw: %d\n", __func__, error); 2248 mtx_destroy(&lvif->mtx); 2249 free(lvif, M_80211_VAP); 2250 return (NULL); 2251 } 2252 2253 error = lkpi_80211_mo_add_interface(hw, vif); 2254 if (error != 0) { 2255 IMPROVE(); /* XXX-BZ mo_stop()? */ 2256 printf("%s: failed to add interface: %d\n", __func__, error); 2257 mtx_destroy(&lvif->mtx); 2258 free(lvif, M_80211_VAP); 2259 return (NULL); 2260 } 2261 2262 LKPI_80211_LHW_LVIF_LOCK(lhw); 2263 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2264 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2265 2266 /* Set bss_info. */ 2267 changed = 0; 2268 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2269 2270 /* conf_tx setup; default WME? */ 2271 2272 /* Force MC init. */ 2273 lkpi_update_mcast_filter(ic, true); 2274 2275 IMPROVE(); 2276 2277 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2278 2279 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2280 lvif->iv_newstate = vap->iv_newstate; 2281 vap->iv_newstate = lkpi_iv_newstate; 2282 lvif->iv_update_bss = vap->iv_update_bss; 2283 vap->iv_update_bss = lkpi_iv_update_bss; 2284 2285 /* Key management. */ 2286 if (lhw->ops->set_key != NULL) { 2287 #ifdef TRY_HW_CRYPTO 2288 vap->iv_key_set = lkpi_iv_key_set; 2289 vap->iv_key_delete = lkpi_iv_key_delete; 2290 #endif 2291 } 2292 2293 ieee80211_ratectl_init(vap); 2294 2295 /* Complete setup. */ 2296 ieee80211_vap_attach(vap, ieee80211_media_change, 2297 ieee80211_media_status, mac); 2298 2299 if (hw->max_listen_interval == 0) 2300 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2301 hw->conf.listen_interval = hw->max_listen_interval; 2302 ic->ic_set_channel(ic); 2303 2304 /* XXX-BZ do we need to be able to update these? */ 2305 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2306 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2307 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2308 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2309 /* any others? */ 2310 IMPROVE(); 2311 2312 return (vap); 2313 } 2314 2315 static void 2316 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2317 { 2318 struct ieee80211com *ic; 2319 struct lkpi_hw *lhw; 2320 struct ieee80211_hw *hw; 2321 struct lkpi_vif *lvif; 2322 struct ieee80211_vif *vif; 2323 2324 lvif = VAP_TO_LVIF(vap); 2325 vif = LVIF_TO_VIF(lvif); 2326 ic = vap->iv_ic; 2327 lhw = ic->ic_softc; 2328 hw = LHW_TO_HW(lhw); 2329 2330 LKPI_80211_LHW_LVIF_LOCK(lhw); 2331 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2332 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2333 lkpi_80211_mo_remove_interface(hw, vif); 2334 2335 ieee80211_ratectl_deinit(vap); 2336 ieee80211_vap_detach(vap); 2337 mtx_destroy(&lvif->mtx); 2338 free(lvif, M_80211_VAP); 2339 } 2340 2341 static void 2342 lkpi_ic_update_mcast(struct ieee80211com *ic) 2343 { 2344 2345 lkpi_update_mcast_filter(ic, false); 2346 TRACEOK(); 2347 } 2348 2349 static void 2350 lkpi_ic_update_promisc(struct ieee80211com *ic) 2351 { 2352 2353 UNIMPLEMENTED; 2354 } 2355 2356 static void 2357 lkpi_ic_update_chw(struct ieee80211com *ic) 2358 { 2359 2360 UNIMPLEMENTED; 2361 } 2362 2363 /* Start / stop device. */ 2364 static void 2365 lkpi_ic_parent(struct ieee80211com *ic) 2366 { 2367 struct lkpi_hw *lhw; 2368 struct ieee80211_hw *hw; 2369 int error; 2370 bool start_all; 2371 2372 IMPROVE(); 2373 2374 lhw = ic->ic_softc; 2375 hw = LHW_TO_HW(lhw); 2376 start_all = false; 2377 2378 if (ic->ic_nrunning > 0) { 2379 error = lkpi_80211_mo_start(hw); 2380 if (error == 0) 2381 start_all = true; 2382 } else { 2383 lkpi_80211_mo_stop(hw); 2384 } 2385 2386 if (start_all) 2387 ieee80211_start_all(ic); 2388 } 2389 2390 bool 2391 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2392 size_t ie_ids_len) 2393 { 2394 int i; 2395 2396 for (i = 0; i < ie_ids_len; i++) { 2397 if (ie == *ie_ids) 2398 return (true); 2399 } 2400 2401 return (false); 2402 } 2403 2404 /* Return true if skipped; false if error. */ 2405 bool 2406 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2407 { 2408 size_t x; 2409 uint8_t l; 2410 2411 x = *xp; 2412 2413 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2414 __func__, x, ies_len, ies)); 2415 l = ies[x + 1]; 2416 x += 2 + l; 2417 2418 if (x > ies_len) 2419 return (false); 2420 2421 *xp = x; 2422 return (true); 2423 } 2424 2425 static uint8_t * 2426 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2427 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2428 { 2429 struct ieee80211_supported_band *supband; 2430 struct linuxkpi_ieee80211_channel *channels; 2431 const struct ieee80211_channel *chan; 2432 const struct ieee80211_rateset *rs; 2433 uint8_t *pb; 2434 int band, i; 2435 2436 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2437 if ((band_mask & (1 << band)) == 0) 2438 continue; 2439 2440 supband = hw->wiphy->bands[band]; 2441 /* 2442 * This should not happen; 2443 * band_mask is a bitmask of valid bands to scan on. 2444 */ 2445 if (supband == NULL || supband->n_channels == 0) 2446 continue; 2447 2448 /* Find a first channel to get the mode and rates from. */ 2449 channels = supband->channels; 2450 chan = NULL; 2451 for (i = 0; i < supband->n_channels; i++) { 2452 2453 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2454 continue; 2455 2456 chan = ieee80211_find_channel(vap->iv_ic, 2457 channels[i].center_freq, 0); 2458 if (chan != NULL) 2459 break; 2460 } 2461 2462 /* This really should not happen. */ 2463 if (chan == NULL) 2464 continue; 2465 2466 pb = p; 2467 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2468 p = ieee80211_add_rates(p, rs); 2469 p = ieee80211_add_xrates(p, rs); 2470 2471 scan_ies->ies[band] = pb; 2472 scan_ies->len[band] = p - pb; 2473 } 2474 2475 /* Add common_ies */ 2476 pb = p; 2477 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2478 vap->iv_wpa_ie != NULL) { 2479 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2480 p += 2 + vap->iv_wpa_ie[1]; 2481 } 2482 if (vap->iv_appie_probereq != NULL) { 2483 memcpy(p, vap->iv_appie_probereq->ie_data, 2484 vap->iv_appie_probereq->ie_len); 2485 p += vap->iv_appie_probereq->ie_len; 2486 } 2487 scan_ies->common_ies = pb; 2488 scan_ies->common_ie_len = p - pb; 2489 2490 return (p); 2491 } 2492 2493 static void 2494 lkpi_ic_scan_start(struct ieee80211com *ic) 2495 { 2496 struct lkpi_hw *lhw; 2497 struct ieee80211_hw *hw; 2498 struct lkpi_vif *lvif; 2499 struct ieee80211_vif *vif; 2500 struct ieee80211_scan_state *ss; 2501 struct ieee80211vap *vap; 2502 int error; 2503 2504 lhw = ic->ic_softc; 2505 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2506 /* A scan is still running. */ 2507 return; 2508 } 2509 2510 ss = ic->ic_scan; 2511 vap = ss->ss_vap; 2512 if (vap->iv_state != IEEE80211_S_SCAN) { 2513 IMPROVE("We need to be able to scan if not in S_SCAN"); 2514 return; 2515 } 2516 2517 hw = LHW_TO_HW(lhw); 2518 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2519 sw_scan: 2520 lvif = VAP_TO_LVIF(vap); 2521 vif = LVIF_TO_VIF(lvif); 2522 2523 if (vap->iv_state == IEEE80211_S_SCAN) 2524 lkpi_hw_conf_idle(hw, false); 2525 2526 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2527 /* net80211::scan_start() handled PS for us. */ 2528 IMPROVE(); 2529 /* XXX Also means it is too late to flush queues? 2530 * need to check iv_sta_ps or overload? */ 2531 /* XXX want to adjust ss end time/ maxdwell? */ 2532 2533 } else { 2534 struct ieee80211_channel *c; 2535 struct ieee80211_scan_request *hw_req; 2536 struct linuxkpi_ieee80211_channel *lc, **cpp; 2537 struct cfg80211_ssid *ssids; 2538 struct cfg80211_scan_6ghz_params *s6gp; 2539 size_t chan_len, nchan, ssids_len, s6ghzlen; 2540 int band, i, ssid_count, common_ie_len; 2541 uint32_t band_mask; 2542 uint8_t *ie, *ieend; 2543 2544 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2545 IMPROVE("individual band scans not yet supported"); 2546 /* In theory net80211 would have to drive this. */ 2547 return; 2548 } 2549 2550 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2551 ssids_len = ssid_count * sizeof(*ssids); 2552 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2553 2554 band_mask = 0; 2555 nchan = 0; 2556 for (i = ss->ss_next; i < ss->ss_last; i++) { 2557 nchan++; 2558 band = lkpi_net80211_chan_to_nl80211_band( 2559 ss->ss_chans[ss->ss_next + i]); 2560 band_mask |= (1 << band); 2561 } 2562 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2563 2564 common_ie_len = 0; 2565 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2566 vap->iv_wpa_ie != NULL) 2567 common_ie_len += vap->iv_wpa_ie[1]; 2568 if (vap->iv_appie_probereq != NULL) 2569 common_ie_len += vap->iv_appie_probereq->ie_len; 2570 2571 /* We would love to check this at an earlier stage... */ 2572 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2573 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2574 "wiphy->max_scan_ie_len %d\n", __func__, 2575 common_ie_len, hw->wiphy->max_scan_ie_len); 2576 } 2577 2578 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2579 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2580 2581 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2582 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2583 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2584 2585 hw_req->req.flags = 0; /* XXX ??? */ 2586 /* hw_req->req.wdev */ 2587 hw_req->req.wiphy = hw->wiphy; 2588 hw_req->req.no_cck = false; /* XXX */ 2589 #if 0 2590 /* This seems to pessimise default scanning behaviour. */ 2591 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2592 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2593 #endif 2594 #ifdef __notyet__ 2595 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2596 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2597 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2598 #endif 2599 2600 hw_req->req.n_channels = nchan; 2601 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2602 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2603 for (i = 0; i < nchan; i++) { 2604 *(cpp + i) = 2605 (struct linuxkpi_ieee80211_channel *)(lc + i); 2606 } 2607 for (i = 0; i < nchan; i++) { 2608 c = ss->ss_chans[ss->ss_next + i]; 2609 2610 lc->hw_value = c->ic_ieee; 2611 lc->center_freq = c->ic_freq; 2612 /* lc->flags */ 2613 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2614 lc->max_power = c->ic_maxpower; 2615 /* lc-> ... */ 2616 lc++; 2617 } 2618 2619 hw_req->req.n_ssids = ssid_count; 2620 if (hw_req->req.n_ssids > 0) { 2621 ssids = (struct cfg80211_ssid *)lc; 2622 hw_req->req.ssids = ssids; 2623 for (i = 0; i < ssid_count; i++) { 2624 ssids->ssid_len = ss->ss_ssid[i].len; 2625 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2626 ss->ss_ssid[i].len); 2627 ssids++; 2628 } 2629 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2630 } else { 2631 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2632 } 2633 2634 /* 6GHz one day. */ 2635 hw_req->req.n_6ghz_params = 0; 2636 hw_req->req.scan_6ghz_params = NULL; 2637 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2638 /* s6gp->... */ 2639 2640 ie = ieend = (uint8_t *)s6gp; 2641 /* Copy per-band IEs, copy common IEs */ 2642 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2643 hw_req->req.ie = ie; 2644 hw_req->req.ie_len = ieend - ie; 2645 2646 lvif = VAP_TO_LVIF(vap); 2647 vif = LVIF_TO_VIF(lvif); 2648 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2649 if (error != 0) { 2650 ieee80211_cancel_scan(vap); 2651 2652 free(hw_req, M_LKPI80211); 2653 lhw->hw_req = NULL; 2654 2655 /* 2656 * XXX-SIGH magic number. 2657 * rtw88 has a magic "return 1" if offloading scan is 2658 * not possible. Fall back to sw scan in that case. 2659 */ 2660 if (error == 1) { 2661 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2662 ieee80211_start_scan(vap, 2663 IEEE80211_SCAN_ACTIVE | 2664 IEEE80211_SCAN_NOPICK | 2665 IEEE80211_SCAN_ONCE, 2666 IEEE80211_SCAN_FOREVER, 2667 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2668 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2669 vap->iv_des_nssid, vap->iv_des_ssid); 2670 goto sw_scan; 2671 } 2672 2673 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2674 __func__, error); 2675 } 2676 } 2677 } 2678 2679 static void 2680 lkpi_ic_scan_end(struct ieee80211com *ic) 2681 { 2682 struct lkpi_hw *lhw; 2683 struct ieee80211_scan_state *ss; 2684 struct ieee80211vap *vap; 2685 2686 lhw = ic->ic_softc; 2687 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2688 return; 2689 } 2690 2691 ss = ic->ic_scan; 2692 vap = ss->ss_vap; 2693 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2694 /* Nothing to do. */ 2695 } else { 2696 struct ieee80211_hw *hw; 2697 struct lkpi_vif *lvif; 2698 struct ieee80211_vif *vif; 2699 2700 hw = LHW_TO_HW(lhw); 2701 lvif = VAP_TO_LVIF(vap); 2702 vif = LVIF_TO_VIF(lvif); 2703 lkpi_80211_mo_sw_scan_complete(hw, vif); 2704 2705 /* Send PS to stop buffering if n80211 does not for us? */ 2706 2707 if (vap->iv_state == IEEE80211_S_SCAN) 2708 lkpi_hw_conf_idle(hw, true); 2709 } 2710 } 2711 2712 static void 2713 lkpi_ic_set_channel(struct ieee80211com *ic) 2714 { 2715 struct lkpi_hw *lhw; 2716 struct ieee80211_hw *hw; 2717 struct ieee80211_channel *c; 2718 struct linuxkpi_ieee80211_channel *chan; 2719 int error; 2720 2721 lhw = ic->ic_softc; 2722 2723 /* If we do not support (*config)() save us the work. */ 2724 if (lhw->ops->config == NULL) 2725 return; 2726 2727 c = ic->ic_curchan; 2728 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2729 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2730 c, lhw->ops->config); 2731 return; 2732 } 2733 2734 chan = lkpi_find_lkpi80211_chan(lhw, c); 2735 if (chan == NULL) { 2736 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2737 c, chan); 2738 return; 2739 } 2740 2741 /* XXX max power for scanning? */ 2742 IMPROVE(); 2743 2744 hw = LHW_TO_HW(lhw); 2745 cfg80211_chandef_create(&hw->conf.chandef, chan, 2746 NL80211_CHAN_NO_HT); 2747 2748 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2749 if (error != 0 && error != EOPNOTSUPP) { 2750 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2751 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2752 /* XXX should we unroll to the previous chandef? */ 2753 IMPROVE(); 2754 } else { 2755 /* Update radiotap channels as well. */ 2756 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2757 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2758 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2759 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2760 } 2761 2762 /* Currently PS is hard coded off! Not sure it belongs here. */ 2763 IMPROVE(); 2764 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2765 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2766 hw->conf.flags &= ~IEEE80211_CONF_PS; 2767 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2768 if (error != 0 && error != EOPNOTSUPP) 2769 ic_printf(ic, "ERROR: %s: config %#0x returned " 2770 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2771 error); 2772 } 2773 } 2774 2775 static struct ieee80211_node * 2776 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2777 const uint8_t mac[IEEE80211_ADDR_LEN]) 2778 { 2779 struct ieee80211com *ic; 2780 struct lkpi_hw *lhw; 2781 struct ieee80211_node *ni; 2782 struct ieee80211_hw *hw; 2783 struct lkpi_sta *lsta; 2784 2785 ic = vap->iv_ic; 2786 lhw = ic->ic_softc; 2787 2788 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2789 if (lhw->ic_node_alloc == NULL) 2790 return (NULL); 2791 2792 ni = lhw->ic_node_alloc(vap, mac); 2793 if (ni == NULL) 2794 return (NULL); 2795 2796 hw = LHW_TO_HW(lhw); 2797 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2798 if (lsta == NULL) { 2799 if (lhw->ic_node_free != NULL) 2800 lhw->ic_node_free(ni); 2801 return (NULL); 2802 } 2803 2804 return (ni); 2805 } 2806 2807 static int 2808 lkpi_ic_node_init(struct ieee80211_node *ni) 2809 { 2810 struct ieee80211com *ic; 2811 struct lkpi_hw *lhw; 2812 struct lkpi_sta *lsta; 2813 struct lkpi_vif *lvif; 2814 int error; 2815 2816 ic = ni->ni_ic; 2817 lhw = ic->ic_softc; 2818 2819 if (lhw->ic_node_init != NULL) { 2820 error = lhw->ic_node_init(ni); 2821 if (error != 0) 2822 return (error); 2823 } 2824 2825 lvif = VAP_TO_LVIF(ni->ni_vap); 2826 2827 lsta = ni->ni_drv_data; 2828 2829 /* Now take the reference before linking it to the table. */ 2830 lsta->ni = ieee80211_ref_node(ni); 2831 2832 LKPI_80211_LVIF_LOCK(lvif); 2833 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2834 LKPI_80211_LVIF_UNLOCK(lvif); 2835 2836 /* XXX-BZ Sync other state over. */ 2837 IMPROVE(); 2838 2839 return (0); 2840 } 2841 2842 static void 2843 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2844 { 2845 struct ieee80211com *ic; 2846 struct lkpi_hw *lhw; 2847 2848 ic = ni->ni_ic; 2849 lhw = ic->ic_softc; 2850 2851 /* XXX-BZ remove from driver, ... */ 2852 IMPROVE(); 2853 2854 if (lhw->ic_node_cleanup != NULL) 2855 lhw->ic_node_cleanup(ni); 2856 } 2857 2858 static void 2859 lkpi_ic_node_free(struct ieee80211_node *ni) 2860 { 2861 struct ieee80211com *ic; 2862 struct lkpi_hw *lhw; 2863 struct lkpi_sta *lsta; 2864 2865 ic = ni->ni_ic; 2866 lhw = ic->ic_softc; 2867 lsta = ni->ni_drv_data; 2868 if (lsta == NULL) 2869 goto out; 2870 2871 /* XXX-BZ free resources, ... */ 2872 IMPROVE(); 2873 2874 /* Flush mbufq (make sure to release ni refs!). */ 2875 #ifdef __notyet__ 2876 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2877 __func__, lsta, mbufq_len(&lsta->txq))); 2878 #endif 2879 /* Drain taskq. */ 2880 2881 /* Drain sta->txq[] */ 2882 mtx_destroy(&lsta->txq_mtx); 2883 2884 /* Remove lsta if added_to_drv. */ 2885 /* Remove lsta from vif */ 2886 2887 /* remove ref from lsta node... */ 2888 2889 /* Free lsta. */ 2890 2891 out: 2892 if (lhw->ic_node_free != NULL) 2893 lhw->ic_node_free(ni); 2894 } 2895 2896 static int 2897 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2898 const struct ieee80211_bpf_params *params __unused) 2899 { 2900 struct lkpi_sta *lsta; 2901 2902 lsta = ni->ni_drv_data; 2903 2904 /* Queue the packet and enqueue the task to handle it. */ 2905 LKPI_80211_LSTA_LOCK(lsta); 2906 mbufq_enqueue(&lsta->txq, m); 2907 LKPI_80211_LSTA_UNLOCK(lsta); 2908 2909 #ifdef LINUXKPI_DEBUG_80211 2910 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2911 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2912 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2913 mbufq_len(&lsta->txq)); 2914 #endif 2915 2916 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2917 return (0); 2918 } 2919 2920 static void 2921 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2922 { 2923 struct ieee80211_node *ni; 2924 struct ieee80211_frame *wh; 2925 struct ieee80211_key *k; 2926 struct sk_buff *skb; 2927 struct ieee80211com *ic; 2928 struct lkpi_hw *lhw; 2929 struct ieee80211_hw *hw; 2930 struct lkpi_vif *lvif; 2931 struct ieee80211_vif *vif; 2932 struct ieee80211_channel *c; 2933 struct ieee80211_tx_control control; 2934 struct ieee80211_tx_info *info; 2935 struct ieee80211_sta *sta; 2936 void *buf; 2937 int ac; 2938 2939 M_ASSERTPKTHDR(m); 2940 #ifdef LINUXKPI_DEBUG_80211 2941 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2942 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2943 #endif 2944 2945 ni = lsta->ni; 2946 #ifndef TRY_HW_CRYPTO 2947 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2948 wh = mtod(m, struct ieee80211_frame *); 2949 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2950 /* Retrieve key for TX && do software encryption. */ 2951 k = ieee80211_crypto_encap(ni, m); 2952 if (k == NULL) { 2953 ieee80211_free_node(ni); 2954 m_freem(m); 2955 return; 2956 } 2957 } 2958 #endif 2959 2960 ic = ni->ni_ic; 2961 lhw = ic->ic_softc; 2962 hw = LHW_TO_HW(lhw); 2963 c = ni->ni_chan; 2964 2965 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2966 struct lkpi_radiotap_tx_hdr *rtap; 2967 2968 rtap = &lhw->rtap_tx; 2969 rtap->wt_flags = 0; 2970 if (k != NULL) 2971 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2972 if (m->m_flags & M_FRAG) 2973 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2974 IMPROVE(); 2975 rtap->wt_rate = 0; 2976 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2977 rtap->wt_chan_freq = htole16(c->ic_freq); 2978 rtap->wt_chan_flags = htole16(c->ic_flags); 2979 } 2980 2981 ieee80211_radiotap_tx(ni->ni_vap, m); 2982 } 2983 2984 /* 2985 * net80211 should handle hw->extra_tx_headroom. 2986 * Though for as long as we are copying we don't mind. 2987 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2988 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2989 */ 2990 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2991 if (skb == NULL) { 2992 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2993 ieee80211_free_node(ni); 2994 m_freem(m); 2995 return; 2996 } 2997 skb_reserve(skb, hw->extra_tx_headroom); 2998 2999 /* XXX-BZ we need a SKB version understanding mbuf. */ 3000 /* Save the mbuf for ieee80211_tx_complete(). */ 3001 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3002 skb->m = m; 3003 #if 0 3004 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3005 #else 3006 buf = skb_put(skb, m->m_pkthdr.len); 3007 m_copydata(m, 0, m->m_pkthdr.len, buf); 3008 #endif 3009 /* Save the ni. */ 3010 m->m_pkthdr.PH_loc.ptr = ni; 3011 3012 lvif = VAP_TO_LVIF(ni->ni_vap); 3013 vif = LVIF_TO_VIF(lvif); 3014 3015 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 3016 ac = M_WME_GETAC(m); 3017 skb->priority = WME_AC_TO_TID(ac); 3018 ac = lkpi_ac_net_to_l80211(ac); 3019 skb_set_queue_mapping(skb, ac); 3020 3021 info = IEEE80211_SKB_CB(skb); 3022 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3023 /* Slight delay; probably only happens on scanning so fine? */ 3024 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3025 c = ic->ic_curchan; 3026 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3027 info->hw_queue = ac; /* XXX-BZ is this correct? */ 3028 if (m->m_flags & M_EAPOL) 3029 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3030 info->control.vif = vif; 3031 /* XXX-BZ info->control.rates */ 3032 3033 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3034 if (lsta != NULL) { 3035 sta = LSTA_TO_STA(lsta); 3036 #ifdef TRY_HW_CRYPTO 3037 info->control.hw_key = lsta->kc; 3038 #endif 3039 } else { 3040 sta = NULL; 3041 } 3042 3043 IMPROVE(); 3044 3045 if (sta != NULL) { 3046 struct lkpi_txq *ltxq; 3047 struct ieee80211_hdr *hdr; 3048 3049 hdr = (void *)skb->data; 3050 if (lsta->added_to_drv && 3051 !ieee80211_is_data_present(hdr->frame_control)) { 3052 if (sta->txq[IEEE80211_NUM_TIDS] != NULL) 3053 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3054 else 3055 goto ops_tx; 3056 } else if (lsta->added_to_drv) { 3057 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 3058 } else 3059 goto ops_tx; 3060 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3061 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3062 3063 /* 3064 * We currently do not use queues but do direct TX. 3065 * The exception to the rule is initial packets, as we cannot 3066 * TX until queues are allocated (at least for iwlwifi). 3067 * So we wake_tx_queue in newstate and register any dequeue 3068 * calls. In the time until then we queue packets and 3069 * let the driver deal with them. 3070 */ 3071 #if 0 3072 if (!ltxq->seen_dequeue) { 3073 3074 /* Prevent an ordering problem, likely other issues. */ 3075 while (!skb_queue_empty(<xq->skbq)) { 3076 struct sk_buff *skb2; 3077 3078 skb2 = skb_dequeue(<xq->skbq); 3079 if (skb2 != NULL) { 3080 memset(&control, 0, sizeof(control)); 3081 control.sta = sta; 3082 lkpi_80211_mo_tx(hw, &control, skb2); 3083 } 3084 } 3085 goto ops_tx; 3086 } 3087 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 3088 goto ops_tx; 3089 #endif 3090 3091 skb_queue_tail(<xq->skbq, skb); 3092 #ifdef LINUXKPI_DEBUG_80211 3093 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3094 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3095 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3096 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3097 __func__, __LINE__, 3098 curthread->td_tid, (unsigned int)ticks, 3099 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3100 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3101 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3102 #endif 3103 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3104 return; 3105 } 3106 3107 ops_tx: 3108 #ifdef LINUXKPI_DEBUG_80211 3109 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3110 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3111 "TX ac %d prio %u qmap %u\n", 3112 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3113 skb, ac, skb->priority, skb->qmap); 3114 #endif 3115 memset(&control, 0, sizeof(control)); 3116 control.sta = sta; 3117 3118 lkpi_80211_mo_tx(hw, &control, skb); 3119 return; 3120 } 3121 3122 static void 3123 lkpi_80211_txq_task(void *ctx, int pending) 3124 { 3125 struct lkpi_sta *lsta; 3126 struct mbufq mq; 3127 struct mbuf *m; 3128 3129 lsta = ctx; 3130 3131 #ifdef LINUXKPI_DEBUG_80211 3132 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3133 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3134 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3135 pending, mbufq_len(&lsta->txq)); 3136 #endif 3137 3138 mbufq_init(&mq, IFQ_MAXLEN); 3139 3140 LKPI_80211_LSTA_LOCK(lsta); 3141 mbufq_concat(&mq, &lsta->txq); 3142 LKPI_80211_LSTA_UNLOCK(lsta); 3143 3144 m = mbufq_dequeue(&mq); 3145 while (m != NULL) { 3146 lkpi_80211_txq_tx_one(lsta, m); 3147 m = mbufq_dequeue(&mq); 3148 } 3149 } 3150 3151 static int 3152 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3153 { 3154 3155 /* XXX TODO */ 3156 IMPROVE(); 3157 3158 /* Quick and dirty cheating hack. */ 3159 struct ieee80211_node *ni; 3160 3161 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3162 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3163 } 3164 3165 static void 3166 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3167 int *n, struct ieee80211_channel *c) 3168 { 3169 struct lkpi_hw *lhw; 3170 struct ieee80211_hw *hw; 3171 struct linuxkpi_ieee80211_channel *channels; 3172 uint8_t bands[IEEE80211_MODE_BYTES]; 3173 int chan_flags, error, i, nchans; 3174 3175 /* Channels */ 3176 lhw = ic->ic_softc; 3177 hw = LHW_TO_HW(lhw); 3178 3179 /* NL80211_BAND_2GHZ */ 3180 nchans = 0; 3181 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3182 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3183 if (nchans > 0) { 3184 memset(bands, 0, sizeof(bands)); 3185 chan_flags = 0; 3186 setbit(bands, IEEE80211_MODE_11B); 3187 /* XXX-BZ unclear how to check for 11g. */ 3188 setbit(bands, IEEE80211_MODE_11G); 3189 #ifdef __notyet__ 3190 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3191 setbit(bands, IEEE80211_MODE_11NG); 3192 chan_flags |= NET80211_CBW_FLAG_HT40; 3193 } 3194 #endif 3195 3196 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3197 for (i = 0; i < nchans && *n < maxchan; i++) { 3198 uint32_t nflags = 0; 3199 int cflags = chan_flags; 3200 3201 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3202 printf("%s: %s: Skipping disabled chan " 3203 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3204 channels[i].hw_value, 3205 channels[i].center_freq, channels[i].flags); 3206 continue; 3207 } 3208 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3209 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3210 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3211 nflags |= IEEE80211_CHAN_DFS; 3212 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3213 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3214 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3215 cflags &= ~NET80211_CBW_FLAG_VHT80; 3216 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3217 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3218 cflags &= ~NET80211_CBW_FLAG_HT40; 3219 3220 error = ieee80211_add_channel_cbw(c, maxchan, n, 3221 channels[i].hw_value, channels[i].center_freq, 3222 channels[i].max_power, 3223 nflags, bands, chan_flags); 3224 /* net80211::ENOBUFS: *n >= maxchans */ 3225 if (error != 0 && error != ENOBUFS) 3226 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3227 "returned error %d\n", ic->ic_name, 3228 __func__, channels[i].hw_value, 3229 channels[i].center_freq, channels[i].flags, 3230 nflags, chan_flags, cflags, error); 3231 if (error != 0) 3232 break; 3233 } 3234 } 3235 3236 /* NL80211_BAND_5GHZ */ 3237 nchans = 0; 3238 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3239 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3240 if (nchans > 0) { 3241 memset(bands, 0, sizeof(bands)); 3242 chan_flags = 0; 3243 setbit(bands, IEEE80211_MODE_11A); 3244 #ifdef __not_yet__ 3245 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3246 setbit(bands, IEEE80211_MODE_11NA); 3247 chan_flags |= NET80211_CBW_FLAG_HT40; 3248 } 3249 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3250 3251 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3252 ic->ic_vhtcaps = 3253 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3254 3255 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3256 chan_flags |= NET80211_CBW_FLAG_VHT80; 3257 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3258 ic->ic_vhtcaps)) 3259 chan_flags |= NET80211_CBW_FLAG_VHT160; 3260 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3261 ic->ic_vhtcaps)) 3262 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3263 } 3264 #endif 3265 3266 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3267 for (i = 0; i < nchans && *n < maxchan; i++) { 3268 uint32_t nflags = 0; 3269 int cflags = chan_flags; 3270 3271 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3272 printf("%s: %s: Skipping disabled chan " 3273 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3274 channels[i].hw_value, 3275 channels[i].center_freq, channels[i].flags); 3276 continue; 3277 } 3278 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3279 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3280 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3281 nflags |= IEEE80211_CHAN_DFS; 3282 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3283 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3284 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3285 cflags &= ~NET80211_CBW_FLAG_VHT80; 3286 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3287 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3288 cflags &= ~NET80211_CBW_FLAG_HT40; 3289 3290 error = ieee80211_add_channel_cbw(c, maxchan, n, 3291 channels[i].hw_value, channels[i].center_freq, 3292 channels[i].max_power, 3293 nflags, bands, chan_flags); 3294 /* net80211::ENOBUFS: *n >= maxchans */ 3295 if (error != 0 && error != ENOBUFS) 3296 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3297 "returned error %d\n", ic->ic_name, 3298 __func__, channels[i].hw_value, 3299 channels[i].center_freq, channels[i].flags, 3300 nflags, chan_flags, cflags, error); 3301 if (error != 0) 3302 break; 3303 } 3304 } 3305 } 3306 3307 static void * 3308 lkpi_ieee80211_ifalloc(void) 3309 { 3310 struct ieee80211com *ic; 3311 3312 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3313 if (ic == NULL) 3314 return (NULL); 3315 3316 /* Setting these happens later when we have device information. */ 3317 ic->ic_softc = NULL; 3318 ic->ic_name = "linuxkpi"; 3319 3320 return (ic); 3321 } 3322 3323 struct ieee80211_hw * 3324 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3325 { 3326 struct ieee80211_hw *hw; 3327 struct lkpi_hw *lhw; 3328 struct wiphy *wiphy; 3329 3330 /* Get us and the driver data also allocated. */ 3331 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3332 if (wiphy == NULL) 3333 return (NULL); 3334 3335 lhw = wiphy_priv(wiphy); 3336 lhw->ops = ops; 3337 3338 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3339 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3340 TAILQ_INIT(&lhw->lvif_head); 3341 3342 /* 3343 * XXX-BZ TODO make sure there is a "_null" function to all ops 3344 * not initialized. 3345 */ 3346 hw = LHW_TO_HW(lhw); 3347 hw->wiphy = wiphy; 3348 hw->conf.flags |= IEEE80211_CONF_IDLE; 3349 hw->priv = (void *)(lhw + 1); 3350 3351 /* BSD Specific. */ 3352 lhw->ic = lkpi_ieee80211_ifalloc(); 3353 if (lhw->ic == NULL) { 3354 ieee80211_free_hw(hw); 3355 return (NULL); 3356 } 3357 3358 IMPROVE(); 3359 3360 return (hw); 3361 } 3362 3363 void 3364 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3365 { 3366 struct lkpi_hw *lhw; 3367 3368 lhw = HW_TO_LHW(hw); 3369 free(lhw->ic, M_LKPI80211); 3370 lhw->ic = NULL; 3371 3372 /* Cleanup more of lhw here or in wiphy_free()? */ 3373 sx_destroy(&lhw->lvif_sx); 3374 mtx_destroy(&lhw->mtx); 3375 IMPROVE(); 3376 } 3377 3378 void 3379 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3380 { 3381 struct lkpi_hw *lhw; 3382 struct ieee80211com *ic; 3383 3384 lhw = HW_TO_LHW(hw); 3385 ic = lhw->ic; 3386 3387 /* Now set a proper name before ieee80211_ifattach(). */ 3388 ic->ic_softc = lhw; 3389 ic->ic_name = name; 3390 3391 /* XXX-BZ do we also need to set wiphy name? */ 3392 } 3393 3394 struct ieee80211_hw * 3395 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3396 { 3397 struct lkpi_hw *lhw; 3398 3399 lhw = wiphy_priv(wiphy); 3400 return (LHW_TO_HW(lhw)); 3401 } 3402 3403 static void 3404 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3405 { 3406 struct ieee80211com *ic; 3407 3408 ic = lhw->ic; 3409 ieee80211_radiotap_attach(ic, 3410 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3411 LKPI_RTAP_TX_FLAGS_PRESENT, 3412 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3413 LKPI_RTAP_RX_FLAGS_PRESENT); 3414 } 3415 3416 int 3417 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3418 { 3419 struct ieee80211com *ic; 3420 struct lkpi_hw *lhw; 3421 int band, i; 3422 3423 lhw = HW_TO_LHW(hw); 3424 ic = lhw->ic; 3425 3426 /* We do it this late as wiphy->dev should be set for the name. */ 3427 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3428 if (lhw->workq == NULL) 3429 return (-EAGAIN); 3430 3431 /* XXX-BZ figure this out how they count his... */ 3432 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3433 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3434 hw->wiphy->perm_addr); 3435 } else if (hw->wiphy->n_addresses > 0) { 3436 /* We take the first one. */ 3437 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3438 hw->wiphy->addresses[0].addr); 3439 } else { 3440 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3441 } 3442 3443 #ifdef __not_yet__ 3444 /* See comment in lkpi_80211_txq_tx_one(). */ 3445 ic->ic_headroom = hw->extra_tx_headroom; 3446 #endif 3447 3448 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3449 ic->ic_opmode = IEEE80211_M_STA; 3450 3451 /* Set device capabilities. */ 3452 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3453 ic->ic_caps = 3454 IEEE80211_C_STA | 3455 IEEE80211_C_MONITOR | 3456 IEEE80211_C_WPA | /* WPA/RSN */ 3457 IEEE80211_C_WME | 3458 #if 0 3459 IEEE80211_C_PMGT | 3460 #endif 3461 IEEE80211_C_SHSLOT | /* short slot time supported */ 3462 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3463 ; 3464 #if 0 3465 /* Scanning is a different kind of beast to re-work. */ 3466 ic->ic_caps |= IEEE80211_C_BGSCAN; 3467 #endif 3468 if (lhw->ops->hw_scan) { 3469 /* 3470 * Advertise full-offload scanning. 3471 * 3472 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3473 * we essentially disable hw_scan for all drivers not setting 3474 * the flag. 3475 */ 3476 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3477 } 3478 3479 #ifdef __notyet__ 3480 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3481 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3482 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3483 | IEEE80211_HTCAP_MAXAMSDU_3839 3484 /* max A-MSDU length */ 3485 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3486 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3487 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3488 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3489 #endif 3490 3491 ic->ic_cryptocaps = 0; 3492 #ifdef TRY_HW_CRYPTO 3493 if (hw->wiphy->n_cipher_suites > 0) { 3494 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3495 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3496 hw->wiphy->cipher_suites[i]); 3497 } 3498 #endif 3499 3500 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3501 ic->ic_channels); 3502 3503 ieee80211_ifattach(ic); 3504 3505 ic->ic_update_mcast = lkpi_ic_update_mcast; 3506 ic->ic_update_promisc = lkpi_ic_update_promisc; 3507 ic->ic_update_chw = lkpi_ic_update_chw; 3508 ic->ic_parent = lkpi_ic_parent; 3509 ic->ic_scan_start = lkpi_ic_scan_start; 3510 ic->ic_scan_end = lkpi_ic_scan_end; 3511 ic->ic_set_channel = lkpi_ic_set_channel; 3512 ic->ic_transmit = lkpi_ic_transmit; 3513 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3514 ic->ic_vap_create = lkpi_ic_vap_create; 3515 ic->ic_vap_delete = lkpi_ic_vap_delete; 3516 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3517 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3518 3519 lhw->ic_node_alloc = ic->ic_node_alloc; 3520 ic->ic_node_alloc = lkpi_ic_node_alloc; 3521 lhw->ic_node_init = ic->ic_node_init; 3522 ic->ic_node_init = lkpi_ic_node_init; 3523 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3524 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3525 lhw->ic_node_free = ic->ic_node_free; 3526 ic->ic_node_free = lkpi_ic_node_free; 3527 3528 lkpi_radiotap_attach(lhw); 3529 3530 /* 3531 * Assign the first possible channel for now; seems Realtek drivers 3532 * expect one. 3533 * Also remember the amount of bands we support and the most rates 3534 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3535 */ 3536 lhw->supbands = lhw->max_rates = 0; 3537 for (band = 0; band < NUM_NL80211_BANDS && 3538 hw->conf.chandef.chan == NULL; band++) { 3539 struct ieee80211_supported_band *supband; 3540 struct linuxkpi_ieee80211_channel *channels; 3541 3542 supband = hw->wiphy->bands[band]; 3543 if (supband == NULL || supband->n_channels == 0) 3544 continue; 3545 3546 lhw->supbands++; 3547 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3548 3549 channels = supband->channels; 3550 for (i = 0; i < supband->n_channels; i++) { 3551 3552 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3553 continue; 3554 3555 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3556 NL80211_CHAN_NO_HT); 3557 break; 3558 } 3559 } 3560 3561 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3562 3563 /* Make sure we do not support more than net80211 is willing to take. */ 3564 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3565 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3566 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3567 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3568 } 3569 3570 /* 3571 * The maximum supported bitrates on any band + size for 3572 * DSSS Parameter Set give our per-band IE size. 3573 * XXX-BZ FIXME add HT VHT ... later 3574 * SSID is the responsibility of the driver and goes on the side. 3575 * The user specified bits coming from the vap go into the 3576 * "common ies" fields. 3577 */ 3578 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3579 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3580 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3581 /* 3582 * net80211 does not seem to support the DSSS Parameter Set but some of 3583 * the drivers insert it so calculate the extra fixed space in. 3584 */ 3585 lhw->scan_ie_len += 2 + 1; 3586 3587 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3588 if (hw->wiphy->max_scan_ie_len > 0) 3589 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3590 3591 if (bootverbose) 3592 ieee80211_announce(ic); 3593 3594 return (0); 3595 } 3596 3597 void 3598 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3599 { 3600 struct lkpi_hw *lhw; 3601 struct ieee80211com *ic; 3602 3603 lhw = HW_TO_LHW(hw); 3604 ic = lhw->ic; 3605 ieee80211_ifdetach(ic); 3606 } 3607 3608 void 3609 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3610 enum ieee80211_iface_iter flags, 3611 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3612 void *arg) 3613 { 3614 struct lkpi_hw *lhw; 3615 struct lkpi_vif *lvif; 3616 struct ieee80211_vif *vif; 3617 bool active, atomic, nin_drv; 3618 3619 lhw = HW_TO_LHW(hw); 3620 3621 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3622 IEEE80211_IFACE_ITER_RESUME_ALL| 3623 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3624 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3625 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3626 __func__, flags); 3627 } 3628 3629 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3630 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3631 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3632 3633 if (atomic) 3634 LKPI_80211_LHW_LVIF_LOCK(lhw); 3635 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3636 struct ieee80211vap *vap; 3637 3638 vif = LVIF_TO_VIF(lvif); 3639 3640 /* 3641 * If we want "active" interfaces, we need to distinguish on 3642 * whether the driver knows about them or not to be able to 3643 * handle the "resume" case correctly. Skip the ones the 3644 * driver does not know about. 3645 */ 3646 if (active && !lvif->added_to_drv && 3647 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3648 continue; 3649 3650 /* 3651 * If we shall skip interfaces not added to the driver do so 3652 * if we haven't yet. 3653 */ 3654 if (nin_drv && !lvif->added_to_drv) 3655 continue; 3656 3657 /* 3658 * Run the iterator function if we are either not asking 3659 * asking for active only or if the VAP is "running". 3660 */ 3661 /* XXX-BZ probably should have state in the lvif as well. */ 3662 vap = LVIF_TO_VAP(lvif); 3663 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3664 iterfunc(arg, vif->addr, vif); 3665 } 3666 if (atomic) 3667 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3668 } 3669 3670 void 3671 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3672 struct ieee80211_vif *vif, 3673 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3674 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3675 void *arg) 3676 { 3677 3678 UNIMPLEMENTED; 3679 } 3680 3681 void 3682 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3683 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3684 void *), 3685 void *arg) 3686 { 3687 3688 UNIMPLEMENTED; 3689 } 3690 3691 void 3692 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3693 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3694 { 3695 struct lkpi_hw *lhw; 3696 struct lkpi_vif *lvif; 3697 struct lkpi_sta *lsta; 3698 struct ieee80211_sta *sta; 3699 3700 KASSERT(hw != NULL && iterfunc != NULL, 3701 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3702 3703 lhw = HW_TO_LHW(hw); 3704 3705 LKPI_80211_LHW_LVIF_LOCK(lhw); 3706 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3707 3708 LKPI_80211_LVIF_LOCK(lvif); 3709 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3710 if (!lsta->added_to_drv) 3711 continue; 3712 sta = LSTA_TO_STA(lsta); 3713 iterfunc(arg, sta); 3714 } 3715 LKPI_80211_LVIF_UNLOCK(lvif); 3716 } 3717 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3718 } 3719 3720 int 3721 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3722 struct linuxkpi_ieee80211_regdomain *regd) 3723 { 3724 struct lkpi_hw *lhw; 3725 struct ieee80211com *ic; 3726 struct ieee80211_regdomain *rd; 3727 3728 lhw = wiphy_priv(wiphy); 3729 ic = lhw->ic; 3730 3731 rd = &ic->ic_regdomain; 3732 if (rd->isocc[0] == '\0') { 3733 rd->isocc[0] = regd->alpha2[0]; 3734 rd->isocc[1] = regd->alpha2[1]; 3735 } 3736 3737 TODO(); 3738 /* XXX-BZ finish the rest. */ 3739 3740 return (0); 3741 } 3742 3743 void 3744 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3745 struct cfg80211_scan_info *info) 3746 { 3747 struct lkpi_hw *lhw; 3748 struct ieee80211com *ic; 3749 struct ieee80211_scan_state *ss; 3750 3751 lhw = wiphy_priv(hw->wiphy); 3752 ic = lhw->ic; 3753 ss = ic->ic_scan; 3754 3755 ieee80211_scan_done(ss->ss_vap); 3756 3757 LKPI_80211_LHW_LOCK(lhw); 3758 free(lhw->hw_req, M_LKPI80211); 3759 lhw->hw_req = NULL; 3760 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3761 wakeup(lhw); 3762 LKPI_80211_LHW_UNLOCK(lhw); 3763 3764 return; 3765 } 3766 3767 void 3768 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3769 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3770 { 3771 struct epoch_tracker et; 3772 struct lkpi_hw *lhw; 3773 struct ieee80211com *ic; 3774 struct mbuf *m; 3775 struct skb_shared_info *shinfo; 3776 struct ieee80211_rx_status *rx_status; 3777 struct ieee80211_rx_stats rx_stats; 3778 struct ieee80211_node *ni; 3779 struct ieee80211vap *vap; 3780 struct ieee80211_hdr *hdr; 3781 struct lkpi_sta *lsta; 3782 int i, offset, ok; 3783 int8_t rssi; 3784 bool is_beacon; 3785 3786 if (skb->len < 2) { 3787 /* Need 80211 stats here. */ 3788 IMPROVE(); 3789 goto err; 3790 } 3791 3792 /* 3793 * For now do the data copy; we can later improve things. Might even 3794 * have an mbuf backing the skb data then? 3795 */ 3796 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3797 if (m == NULL) 3798 goto err; 3799 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3800 3801 shinfo = skb_shinfo(skb); 3802 offset = m->m_len; 3803 for (i = 0; i < shinfo->nr_frags; i++) { 3804 m_copyback(m, offset, shinfo->frags[i].size, 3805 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3806 shinfo->frags[i].offset); 3807 offset += shinfo->frags[i].size; 3808 } 3809 3810 rx_status = IEEE80211_SKB_RXCB(skb); 3811 3812 hdr = (void *)skb->data; 3813 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3814 3815 #ifdef LINUXKPI_DEBUG_80211 3816 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3817 goto no_trace_beacons; 3818 3819 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3820 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3821 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3822 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3823 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3824 shinfo, shinfo->nr_frags, 3825 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3826 3827 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3828 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3829 3830 /* Implement a dump_rxcb() !!! */ 3831 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3832 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3833 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3834 __func__, 3835 (uintmax_t)rx_status->boottime_ns, 3836 (uintmax_t)rx_status->mactime, 3837 rx_status->device_timestamp, 3838 rx_status->flag, 3839 rx_status->freq, 3840 rx_status->bw, 3841 rx_status->encoding, 3842 rx_status->ampdu_reference, 3843 rx_status->band, 3844 rx_status->chains, 3845 rx_status->chain_signal[0], 3846 rx_status->chain_signal[1], 3847 rx_status->chain_signal[2], 3848 rx_status->chain_signal[3], 3849 rx_status->signal, 3850 rx_status->enc_flags, 3851 rx_status->he_dcm, 3852 rx_status->he_gi, 3853 rx_status->he_ru, 3854 rx_status->zero_length_psdu_type, 3855 rx_status->nss, 3856 rx_status->rate_idx); 3857 no_trace_beacons: 3858 #endif 3859 3860 memset(&rx_stats, 0, sizeof(rx_stats)); 3861 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3862 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3863 rx_stats.c_nf = -96; 3864 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3865 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3866 rssi = rx_status->signal; 3867 else 3868 rssi = rx_stats.c_nf; 3869 /* 3870 * net80211 signal strength data are in .5 dBm units relative to 3871 * the current noise floor (see comment in ieee80211_node.h). 3872 */ 3873 rssi -= rx_stats.c_nf; 3874 rx_stats.c_rssi = rssi * 2; 3875 rx_stats.r_flags |= IEEE80211_R_BAND; 3876 rx_stats.c_band = 3877 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3878 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3879 rx_stats.c_freq = rx_status->freq; 3880 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3881 3882 /* XXX (*sta_statistics)() to get to some of that? */ 3883 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3884 3885 lhw = HW_TO_LHW(hw); 3886 ic = lhw->ic; 3887 3888 ok = ieee80211_add_rx_params(m, &rx_stats); 3889 if (ok == 0) { 3890 m_freem(m); 3891 counter_u64_add(ic->ic_ierrors, 1); 3892 goto err; 3893 } 3894 3895 if (sta != NULL) { 3896 lsta = STA_TO_LSTA(sta); 3897 ni = ieee80211_ref_node(lsta->ni); 3898 } else { 3899 struct ieee80211_frame_min *wh; 3900 3901 wh = mtod(m, struct ieee80211_frame_min *); 3902 ni = ieee80211_find_rxnode(ic, wh); 3903 if (ni != NULL) 3904 lsta = ni->ni_drv_data; 3905 } 3906 3907 if (ni != NULL) 3908 vap = ni->ni_vap; 3909 else 3910 /* 3911 * XXX-BZ can we improve this by looking at the frame hdr 3912 * or other meta-data passed up? 3913 */ 3914 vap = TAILQ_FIRST(&ic->ic_vaps); 3915 3916 #ifdef LINUXKPI_DEBUG_80211 3917 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3918 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3919 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3920 ni, vap, is_beacon ? " beacon" : ""); 3921 #endif 3922 3923 if (ni != NULL && vap != NULL && is_beacon && 3924 rx_status->device_timestamp > 0 && 3925 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3926 struct lkpi_vif *lvif; 3927 struct ieee80211_vif *vif; 3928 struct ieee80211_frame *wh; 3929 3930 wh = mtod(m, struct ieee80211_frame *); 3931 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3932 goto skip_device_ts; 3933 3934 lvif = VAP_TO_LVIF(vap); 3935 vif = LVIF_TO_VIF(lvif); 3936 3937 IMPROVE("TIMING_BEACON_ONLY?"); 3938 /* mac80211 specific (not net80211) so keep it here. */ 3939 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3940 /* 3941 * net80211 should take care of the other information (sync_tsf, 3942 * sync_dtim_count) as otherwise we need to parse the beacon. 3943 */ 3944 } 3945 skip_device_ts: 3946 3947 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3948 ieee80211_radiotap_active_vap(vap)) { 3949 struct lkpi_radiotap_rx_hdr *rtap; 3950 3951 rtap = &lhw->rtap_rx; 3952 rtap->wr_tsft = rx_status->device_timestamp; 3953 rtap->wr_flags = 0; 3954 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3955 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3956 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3957 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3958 #if 0 /* .. or it does not given we strip it below. */ 3959 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3960 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3961 #endif 3962 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3963 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3964 rtap->wr_rate = 0; 3965 IMPROVE(); 3966 /* XXX TODO status->encoding / rate_index / bw */ 3967 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3968 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3969 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3970 rtap->wr_dbm_antsignal = rssi; 3971 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3972 } 3973 3974 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3975 m_adj(m, -IEEE80211_CRC_LEN); 3976 3977 NET_EPOCH_ENTER(et); 3978 if (ni != NULL) { 3979 ok = ieee80211_input_mimo(ni, m); 3980 ieee80211_free_node(ni); 3981 if (ok < 0) 3982 m_freem(m); 3983 } else { 3984 ok = ieee80211_input_mimo_all(ic, m); 3985 /* mbuf got consumed. */ 3986 } 3987 NET_EPOCH_EXIT(et); 3988 3989 #ifdef LINUXKPI_DEBUG_80211 3990 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3991 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3992 #endif 3993 3994 IMPROVE(); 3995 3996 err: 3997 /* The skb is ours so we can free it :-) */ 3998 kfree_skb(skb); 3999 } 4000 4001 uint8_t 4002 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 4003 { 4004 const struct ieee80211_frame *wh; 4005 4006 wh = (const struct ieee80211_frame *)hdr; 4007 return (ieee80211_gettid(wh)); 4008 } 4009 4010 struct wiphy * 4011 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4012 { 4013 struct lkpi_wiphy *lwiphy; 4014 4015 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4016 if (lwiphy == NULL) 4017 return (NULL); 4018 lwiphy->ops = ops; 4019 4020 /* XXX TODO */ 4021 return (LWIPHY_TO_WIPHY(lwiphy)); 4022 } 4023 4024 void 4025 linuxkpi_wiphy_free(struct wiphy *wiphy) 4026 { 4027 struct lkpi_wiphy *lwiphy; 4028 4029 if (wiphy == NULL) 4030 return; 4031 4032 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4033 kfree(lwiphy); 4034 } 4035 4036 uint32_t 4037 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4038 enum nl80211_band band) 4039 { 4040 4041 switch (band) { 4042 case NL80211_BAND_2GHZ: 4043 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4044 break; 4045 case NL80211_BAND_5GHZ: 4046 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4047 break; 4048 default: 4049 /* XXX abort, retry, error, panic? */ 4050 break; 4051 } 4052 4053 return (0); 4054 } 4055 4056 uint32_t 4057 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4058 { 4059 4060 return (ieee80211_mhz2ieee(freq, 0)); 4061 } 4062 4063 static struct lkpi_sta * 4064 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4065 { 4066 struct lkpi_sta *lsta, *temp; 4067 4068 LKPI_80211_LVIF_LOCK(lvif); 4069 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4070 if (lsta->ni == ni) { 4071 LKPI_80211_LVIF_UNLOCK(lvif); 4072 return (lsta); 4073 } 4074 } 4075 LKPI_80211_LVIF_UNLOCK(lvif); 4076 4077 return (NULL); 4078 } 4079 4080 struct ieee80211_sta * 4081 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4082 { 4083 struct lkpi_vif *lvif; 4084 struct lkpi_sta *lsta, *temp; 4085 struct ieee80211_sta *sta; 4086 4087 lvif = VIF_TO_LVIF(vif); 4088 4089 LKPI_80211_LVIF_LOCK(lvif); 4090 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4091 sta = LSTA_TO_STA(lsta); 4092 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4093 LKPI_80211_LVIF_UNLOCK(lvif); 4094 return (sta); 4095 } 4096 } 4097 LKPI_80211_LVIF_UNLOCK(lvif); 4098 return (NULL); 4099 } 4100 4101 struct ieee80211_sta * 4102 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4103 const uint8_t *addr, const uint8_t *ourvifaddr) 4104 { 4105 struct lkpi_hw *lhw; 4106 struct lkpi_vif *lvif; 4107 struct lkpi_sta *lsta; 4108 struct ieee80211_vif *vif; 4109 struct ieee80211_sta *sta; 4110 4111 lhw = wiphy_priv(hw->wiphy); 4112 sta = NULL; 4113 4114 LKPI_80211_LHW_LVIF_LOCK(lhw); 4115 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4116 4117 /* XXX-BZ check our address from the vif. */ 4118 4119 vif = LVIF_TO_VIF(lvif); 4120 if (ourvifaddr != NULL && 4121 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4122 continue; 4123 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4124 if (sta != NULL) 4125 break; 4126 } 4127 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4128 4129 if (sta != NULL) { 4130 lsta = STA_TO_LSTA(sta); 4131 if (!lsta->added_to_drv) 4132 return (NULL); 4133 } 4134 4135 return (sta); 4136 } 4137 4138 struct sk_buff * 4139 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4140 struct ieee80211_txq *txq) 4141 { 4142 struct lkpi_txq *ltxq; 4143 struct sk_buff *skb; 4144 4145 ltxq = TXQ_TO_LTXQ(txq); 4146 ltxq->seen_dequeue = true; 4147 4148 skb = skb_dequeue(<xq->skbq); 4149 4150 return (skb); 4151 } 4152 4153 void 4154 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4155 unsigned long *frame_cnt, unsigned long *byte_cnt) 4156 { 4157 struct lkpi_txq *ltxq; 4158 struct sk_buff *skb; 4159 unsigned long fc, bc; 4160 4161 ltxq = TXQ_TO_LTXQ(txq); 4162 4163 fc = bc = 0; 4164 skb_queue_walk(<xq->skbq, skb) { 4165 fc++; 4166 bc += skb->len; 4167 } 4168 if (frame_cnt) 4169 *frame_cnt = fc; 4170 if (byte_cnt) 4171 *byte_cnt = bc; 4172 4173 /* Validate that this is doing the correct thing. */ 4174 /* Should we keep track on en/dequeue? */ 4175 IMPROVE(); 4176 } 4177 4178 /* 4179 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4180 * The latter tries to derive the success status from the info flags 4181 * passed back from the driver. rawx_mit() saves the ni on the m and the 4182 * m on the skb for us to be able to give feedback to net80211. 4183 */ 4184 void 4185 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4186 int status) 4187 { 4188 struct ieee80211_node *ni; 4189 struct mbuf *m; 4190 4191 m = skb->m; 4192 skb->m = NULL; 4193 4194 if (m != NULL) { 4195 ni = m->m_pkthdr.PH_loc.ptr; 4196 /* Status: 0 is ok, != 0 is error. */ 4197 ieee80211_tx_complete(ni, m, status); 4198 /* ni & mbuf were consumed. */ 4199 } 4200 4201 kfree_skb(skb); 4202 } 4203 4204 void 4205 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4206 { 4207 struct ieee80211_tx_info *info; 4208 struct ieee80211_ratectl_tx_status txs; 4209 struct ieee80211_node *ni; 4210 int status; 4211 4212 info = IEEE80211_SKB_CB(skb); 4213 4214 if (skb->m != NULL) { 4215 struct mbuf *m; 4216 4217 m = skb->m; 4218 ni = m->m_pkthdr.PH_loc.ptr; 4219 memset(&txs, 0, sizeof(txs)); 4220 } else { 4221 ni = NULL; 4222 } 4223 4224 if (info->flags & IEEE80211_TX_STAT_ACK) { 4225 status = 0; /* No error. */ 4226 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4227 } else { 4228 status = 1; 4229 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4230 } 4231 4232 if (ni != NULL) { 4233 int ridx __unused; 4234 #ifdef LINUXKPI_DEBUG_80211 4235 int old_rate; 4236 4237 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4238 #endif 4239 txs.pktlen = skb->len; 4240 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4241 if (info->status.rates[0].count > 1) { 4242 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4243 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4244 } 4245 #if 0 /* Unused in net80211 currently. */ 4246 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4247 txs.final_rate = info->status.rates[0].idx; 4248 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4249 #endif 4250 if (info->status.is_valid_ack_signal) { 4251 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4252 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4253 } 4254 4255 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4256 ieee80211_ratectl_tx_complete(ni, &txs); 4257 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4258 4259 #ifdef LINUXKPI_DEBUG_80211 4260 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4261 printf("TX-RATE: %s: old %d new %d ridx %d, " 4262 "long_retries %d\n", __func__, 4263 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4264 ridx, txs.long_retries); 4265 } 4266 #endif 4267 } 4268 4269 #ifdef LINUXKPI_DEBUG_80211 4270 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4271 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4272 "band %u hw_queue %u tx_time_est %d : " 4273 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4274 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4275 "tx_time %u is_valid_ack_signal %u " 4276 "status_driver_data [ %p %p ]\n", 4277 __func__, hw, skb, status, info->flags, 4278 info->band, info->hw_queue, info->tx_time_est, 4279 info->status.rates[0].idx, info->status.rates[0].count, 4280 info->status.rates[0].flags, 4281 info->status.rates[1].idx, info->status.rates[1].count, 4282 info->status.rates[1].flags, 4283 info->status.rates[2].idx, info->status.rates[2].count, 4284 info->status.rates[2].flags, 4285 info->status.rates[3].idx, info->status.rates[3].count, 4286 info->status.rates[3].flags, 4287 info->status.ack_signal, info->status.ampdu_ack_len, 4288 info->status.ampdu_len, info->status.antenna, 4289 info->status.tx_time, info->status.is_valid_ack_signal, 4290 info->status.status_driver_data[0], 4291 info->status.status_driver_data[1]); 4292 #endif 4293 4294 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4295 } 4296 4297 /* 4298 * This is an internal bandaid for the moment for the way we glue 4299 * skbs and mbufs together for TX. Once we have skbs backed by 4300 * mbufs this should go away. 4301 * This is a public function but kept on the private KPI (lkpi_) 4302 * and is not exposed by a header file. 4303 */ 4304 static void 4305 lkpi_ieee80211_free_skb_mbuf(void *p) 4306 { 4307 struct ieee80211_node *ni; 4308 struct mbuf *m; 4309 4310 if (p == NULL) 4311 return; 4312 4313 m = (struct mbuf *)p; 4314 M_ASSERTPKTHDR(m); 4315 4316 ni = m->m_pkthdr.PH_loc.ptr; 4317 m->m_pkthdr.PH_loc.ptr = NULL; 4318 if (ni != NULL) 4319 ieee80211_free_node(ni); 4320 m_freem(m); 4321 } 4322 4323 void 4324 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4325 struct delayed_work *w, int delay) 4326 { 4327 struct lkpi_hw *lhw; 4328 4329 /* Need to make sure hw is in a stable (non-suspended) state. */ 4330 IMPROVE(); 4331 4332 lhw = HW_TO_LHW(hw); 4333 queue_delayed_work(lhw->workq, w, delay); 4334 } 4335 4336 void 4337 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4338 struct work_struct *w) 4339 { 4340 struct lkpi_hw *lhw; 4341 4342 /* Need to make sure hw is in a stable (non-suspended) state. */ 4343 IMPROVE(); 4344 4345 lhw = HW_TO_LHW(hw); 4346 queue_work(lhw->workq, w); 4347 } 4348 4349 struct sk_buff * 4350 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4351 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4352 { 4353 struct sk_buff *skb; 4354 struct ieee80211_frame *wh; 4355 uint8_t *p; 4356 size_t len; 4357 4358 len = sizeof(*wh); 4359 len += 2 + ssid_len; 4360 4361 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4362 if (skb == NULL) 4363 return (NULL); 4364 4365 skb_reserve(skb, hw->extra_tx_headroom); 4366 4367 wh = skb_put_zero(skb, sizeof(*wh)); 4368 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4369 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4370 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4371 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4372 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4373 4374 p = skb_put(skb, 2 + ssid_len); 4375 *p++ = IEEE80211_ELEMID_SSID; 4376 *p++ = ssid_len; 4377 if (ssid_len > 0) 4378 memcpy(p, ssid, ssid_len); 4379 4380 return (skb); 4381 } 4382 4383 struct sk_buff * 4384 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4385 struct ieee80211_vif *vif) 4386 { 4387 struct lkpi_vif *lvif; 4388 struct ieee80211vap *vap; 4389 struct sk_buff *skb; 4390 struct ieee80211_frame_pspoll *psp; 4391 uint16_t v; 4392 4393 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4394 if (skb == NULL) 4395 return (NULL); 4396 4397 skb_reserve(skb, hw->extra_tx_headroom); 4398 4399 lvif = VIF_TO_LVIF(vif); 4400 vap = LVIF_TO_VAP(lvif); 4401 4402 psp = skb_put_zero(skb, sizeof(*psp)); 4403 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4404 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4405 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4406 memcpy(&psp->i_aid, &v, sizeof(v)); 4407 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4408 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4409 4410 return (skb); 4411 } 4412 4413 struct sk_buff * 4414 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4415 struct ieee80211_vif *vif, bool qos) 4416 { 4417 struct lkpi_vif *lvif; 4418 struct ieee80211vap *vap; 4419 struct sk_buff *skb; 4420 struct ieee80211_frame *nullf; 4421 4422 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4423 if (skb == NULL) 4424 return (NULL); 4425 4426 skb_reserve(skb, hw->extra_tx_headroom); 4427 4428 lvif = VIF_TO_LVIF(vif); 4429 vap = LVIF_TO_VAP(lvif); 4430 4431 nullf = skb_put_zero(skb, sizeof(*nullf)); 4432 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4433 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4434 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4435 4436 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4437 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4438 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4439 4440 return (skb); 4441 } 4442 4443 struct wireless_dev * 4444 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4445 { 4446 struct lkpi_vif *lvif; 4447 4448 lvif = VIF_TO_LVIF(vif); 4449 return (&lvif->wdev); 4450 } 4451 4452 void 4453 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4454 { 4455 struct lkpi_vif *lvif; 4456 struct ieee80211vap *vap; 4457 enum ieee80211_state nstate; 4458 int arg; 4459 4460 lvif = VIF_TO_LVIF(vif); 4461 vap = LVIF_TO_VAP(lvif); 4462 4463 /* 4464 * Go to init; otherwise we need to elaborately check state and 4465 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4466 * Let the statemachine handle all neccessary changes. 4467 */ 4468 nstate = IEEE80211_S_INIT; 4469 arg = 0; /* Not a valid reason. */ 4470 4471 #ifdef LINUXKPI_DEBUG_80211 4472 if (linuxkpi_debug_80211 & D80211_TRACE) 4473 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4474 #endif 4475 ieee80211_new_state(vap, nstate, arg); 4476 } 4477 4478 void 4479 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4480 { 4481 struct lkpi_vif *lvif; 4482 struct ieee80211vap *vap; 4483 4484 lvif = VIF_TO_LVIF(vif); 4485 vap = LVIF_TO_VAP(lvif); 4486 4487 #ifdef LINUXKPI_DEBUG_80211 4488 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4489 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4490 vif, vap, ieee80211_state_name[vap->iv_state]); 4491 #endif 4492 ieee80211_beacon_miss(vap->iv_ic); 4493 } 4494 4495 MODULE_VERSION(linuxkpi_wlan, 1); 4496 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4497 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4498