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 #include <sys/libkern.h> 57 58 #include <net/if.h> 59 #include <net/if_var.h> 60 #include <net/if_media.h> 61 #include <net/ethernet.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_proto.h> 65 #include <net80211/ieee80211_ratectl.h> 66 #include <net80211/ieee80211_radiotap.h> 67 68 #define LINUXKPI_NET80211 69 #include <net/mac80211.h> 70 71 #include <linux/workqueue.h> 72 #include "linux_80211.h" 73 74 /* #define LKPI_80211_HW_CRYPTO */ 75 76 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 77 78 /* -------------------------------------------------------------------------- */ 79 80 /* Keep public for as long as header files are using it too. */ 81 int linuxkpi_debug_80211; 82 83 #ifdef LINUXKPI_DEBUG_80211 84 SYSCTL_DECL(_compat_linuxkpi); 85 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 86 "LinuxKPI 802.11 compatibility layer"); 87 88 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 89 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 90 91 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 92 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 93 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 94 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 95 #else 96 #define UNIMPLEMENTED do { } while (0) 97 #define TRACEOK() do { } while (0) 98 #endif 99 100 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 101 #ifndef PREP_TX_INFO_DURATION 102 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 103 #endif 104 105 /* c.f. ieee80211_ioctl.c */ 106 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 107 108 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 109 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 110 111 /* IEEE 802.11-05/0257r1 */ 112 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 113 114 const uint8_t tid_to_mac80211_ac[] = { 115 IEEE80211_AC_BE, 116 IEEE80211_AC_BK, 117 IEEE80211_AC_BK, 118 IEEE80211_AC_BE, 119 IEEE80211_AC_VI, 120 IEEE80211_AC_VI, 121 IEEE80211_AC_VO, 122 IEEE80211_AC_VO, 123 #if 0 124 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 125 #endif 126 }; 127 128 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 129 /* 130 * XXX TODO need a "glue layer" to link cfg80211 ops to 131 * mac80211 and to the driver or net80211. 132 * Can we pass some on 1:1? Need to compare the (*f)(). 133 */ 134 }; 135 136 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 137 struct ieee80211_node *); 138 static void lkpi_80211_txq_task(void *, int); 139 static void lkpi_ieee80211_free_skb_mbuf(void *); 140 141 static void 142 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 143 const char *_f, int _l) 144 { 145 146 #ifdef LINUXKPI_DEBUG_80211 147 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 148 return; 149 if (lsta == NULL) 150 return; 151 152 printf("%s:%d lsta %p ni %p sta %p\n", 153 _f, _l, lsta, ni, &lsta->sta); 154 if (ni != NULL) 155 ieee80211_dump_node(NULL, ni); 156 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 157 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 158 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 159 #endif 160 } 161 162 static void 163 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 164 { 165 struct ieee80211_node *ni; 166 167 ni = lsta->ni; 168 169 LKPI_80211_LVIF_LOCK(lvif); 170 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 171 LKPI_80211_LVIF_UNLOCK(lvif); 172 173 lsta->ni = NULL; 174 ni->ni_drv_data = NULL; 175 if (ni != NULL) 176 ieee80211_free_node(ni); 177 178 IMPROVE("more from lkpi_ic_node_free() should happen here."); 179 180 free(lsta, M_LKPI80211); 181 } 182 183 static struct lkpi_sta * 184 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 185 struct ieee80211_hw *hw, struct ieee80211_node *ni) 186 { 187 struct lkpi_sta *lsta; 188 struct lkpi_vif *lvif; 189 struct ieee80211_vif *vif; 190 struct ieee80211_sta *sta; 191 int tid; 192 193 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 194 M_NOWAIT | M_ZERO); 195 if (lsta == NULL) 196 return (NULL); 197 198 lsta->added_to_drv = false; 199 lsta->state = IEEE80211_STA_NOTEXIST; 200 #if 0 201 /* 202 * This needs to be done in node_init() as ieee80211_alloc_node() 203 * will initialise the refcount after us. 204 */ 205 lsta->ni = ieee80211_ref_node(ni); 206 #endif 207 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 208 ni->ni_drv_data = lsta; 209 210 lvif = VAP_TO_LVIF(vap); 211 vif = LVIF_TO_VIF(lvif); 212 sta = LSTA_TO_STA(lsta); 213 214 IEEE80211_ADDR_COPY(sta->addr, mac); 215 for (tid = 0; tid < nitems(sta->txq); tid++) { 216 struct lkpi_txq *ltxq; 217 218 /* We are not limiting ourselves to hw.queues here. */ 219 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 220 M_LKPI80211, M_NOWAIT | M_ZERO); 221 if (ltxq == NULL) 222 goto cleanup; 223 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 224 if (tid == IEEE80211_NUM_TIDS) { 225 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 226 free(ltxq, M_LKPI80211); 227 continue; 228 } 229 IMPROVE("AP/if we support non-STA here too"); 230 ltxq->txq.ac = IEEE80211_AC_VO; 231 } else { 232 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 233 } 234 ltxq->seen_dequeue = false; 235 ltxq->txq.vif = vif; 236 ltxq->txq.tid = tid; 237 ltxq->txq.sta = sta; 238 skb_queue_head_init(<xq->skbq); 239 sta->txq[tid] = <xq->txq; 240 } 241 242 /* Deferred TX path. */ 243 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 244 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 245 mbufq_init(&lsta->txq, IFQ_MAXLEN); 246 247 return (lsta); 248 249 cleanup: 250 for (; tid >= 0; tid--) 251 free(sta->txq[tid], M_LKPI80211); 252 free(lsta, M_LKPI80211); 253 return (NULL); 254 } 255 256 static enum nl80211_band 257 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 258 { 259 260 if (IEEE80211_IS_CHAN_2GHZ(c)) 261 return (NL80211_BAND_2GHZ); 262 else if (IEEE80211_IS_CHAN_5GHZ(c)) 263 return (NL80211_BAND_5GHZ); 264 #ifdef __notyet__ 265 else if () 266 return (NL80211_BAND_6GHZ); 267 else if () 268 return (NL80211_BAND_60GHZ); 269 else if (IEEE80211_IS_CHAN_GSM(c)) 270 return (NL80211_BAND_XXX); 271 #endif 272 else 273 panic("%s: unsupported band. c %p flags %#x\n", 274 __func__, c, c->ic_flags); 275 } 276 277 static uint32_t 278 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 279 { 280 281 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 282 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 283 switch (band) { 284 case NL80211_BAND_2GHZ: 285 return (IEEE80211_CHAN_2GHZ); 286 break; 287 case NL80211_BAND_5GHZ: 288 return (IEEE80211_CHAN_5GHZ); 289 break; 290 case NL80211_BAND_60GHZ: 291 break; 292 case NL80211_BAND_6GHZ: 293 break; 294 default: 295 panic("%s: unsupported band %u\n", __func__, band); 296 break; 297 } 298 299 IMPROVE(); 300 return (0x00); 301 } 302 303 #if 0 304 static enum ieee80211_ac_numbers 305 lkpi_ac_net_to_l80211(int ac) 306 { 307 308 switch (ac) { 309 case WME_AC_VO: 310 return (IEEE80211_AC_VO); 311 case WME_AC_VI: 312 return (IEEE80211_AC_VI); 313 case WME_AC_BE: 314 return (IEEE80211_AC_BE); 315 case WME_AC_BK: 316 return (IEEE80211_AC_BK); 317 default: 318 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 319 return (IEEE80211_AC_BE); 320 } 321 } 322 #endif 323 324 static enum nl80211_iftype 325 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 326 { 327 328 switch (opmode) { 329 case IEEE80211_M_IBSS: 330 return (NL80211_IFTYPE_ADHOC); 331 break; 332 case IEEE80211_M_STA: 333 return (NL80211_IFTYPE_STATION); 334 break; 335 case IEEE80211_M_WDS: 336 return (NL80211_IFTYPE_WDS); 337 break; 338 case IEEE80211_M_HOSTAP: 339 return (NL80211_IFTYPE_AP); 340 break; 341 case IEEE80211_M_MONITOR: 342 return (NL80211_IFTYPE_MONITOR); 343 break; 344 case IEEE80211_M_MBSS: 345 return (NL80211_IFTYPE_MESH_POINT); 346 break; 347 case IEEE80211_M_AHDEMO: 348 /* FALLTHROUGH */ 349 default: 350 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 351 /* FALLTHROUGH */ 352 } 353 return (NL80211_IFTYPE_UNSPECIFIED); 354 } 355 356 #ifdef LKPI_80211_HW_CRYPTO 357 static uint32_t 358 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 359 { 360 361 switch (wlan_cipher_suite) { 362 case WLAN_CIPHER_SUITE_WEP40: 363 return (IEEE80211_CRYPTO_WEP); 364 case WLAN_CIPHER_SUITE_TKIP: 365 return (IEEE80211_CRYPTO_TKIP); 366 case WLAN_CIPHER_SUITE_CCMP: 367 return (IEEE80211_CIPHER_AES_CCM); 368 case WLAN_CIPHER_SUITE_WEP104: 369 return (IEEE80211_CRYPTO_WEP); 370 case WLAN_CIPHER_SUITE_AES_CMAC: 371 case WLAN_CIPHER_SUITE_GCMP: 372 case WLAN_CIPHER_SUITE_GCMP_256: 373 case WLAN_CIPHER_SUITE_CCMP_256: 374 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 375 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 376 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 377 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 378 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 379 break; 380 default: 381 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 382 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 383 } 384 385 return (0); 386 } 387 388 static uint32_t 389 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 390 { 391 392 switch (cipher) { 393 case IEEE80211_CIPHER_TKIP: 394 return (WLAN_CIPHER_SUITE_TKIP); 395 case IEEE80211_CIPHER_AES_CCM: 396 return (WLAN_CIPHER_SUITE_CCMP); 397 case IEEE80211_CIPHER_WEP: 398 if (keylen < 8) 399 return (WLAN_CIPHER_SUITE_WEP40); 400 else 401 return (WLAN_CIPHER_SUITE_WEP104); 402 break; 403 case IEEE80211_CIPHER_AES_OCB: 404 case IEEE80211_CIPHER_TKIPMIC: 405 case IEEE80211_CIPHER_CKIP: 406 case IEEE80211_CIPHER_NONE: 407 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 408 break; 409 default: 410 printf("%s: unknown cipher %#010x\n", __func__, cipher); 411 }; 412 return (0); 413 } 414 #endif 415 416 #ifdef __notyet__ 417 static enum ieee80211_sta_state 418 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 419 { 420 421 /* 422 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 423 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 424 */ 425 switch (state) { 426 case IEEE80211_S_INIT: 427 return (IEEE80211_STA_NOTEXIST); 428 case IEEE80211_S_SCAN: 429 return (IEEE80211_STA_NONE); 430 case IEEE80211_S_AUTH: 431 return (IEEE80211_STA_AUTH); 432 case IEEE80211_S_ASSOC: 433 return (IEEE80211_STA_ASSOC); 434 case IEEE80211_S_RUN: 435 return (IEEE80211_STA_AUTHORIZED); 436 case IEEE80211_S_CAC: 437 case IEEE80211_S_CSA: 438 case IEEE80211_S_SLEEP: 439 default: 440 UNIMPLEMENTED; 441 }; 442 443 return (IEEE80211_STA_NOTEXIST); 444 } 445 #endif 446 447 static struct linuxkpi_ieee80211_channel * 448 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 449 struct ieee80211_channel *c) 450 { 451 struct ieee80211_hw *hw; 452 struct linuxkpi_ieee80211_channel *channels; 453 enum nl80211_band band; 454 int i, nchans; 455 456 hw = LHW_TO_HW(lhw); 457 band = lkpi_net80211_chan_to_nl80211_band(c); 458 if (hw->wiphy->bands[band] == NULL) 459 return (NULL); 460 461 nchans = hw->wiphy->bands[band]->n_channels; 462 if (nchans <= 0) 463 return (NULL); 464 465 channels = hw->wiphy->bands[band]->channels; 466 for (i = 0; i < nchans; i++) { 467 if (channels[i].hw_value == c->ic_ieee) 468 return (&channels[i]); 469 } 470 471 return (NULL); 472 } 473 474 static struct linuxkpi_ieee80211_channel * 475 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 476 { 477 struct linuxkpi_ieee80211_channel *chan; 478 struct ieee80211_channel *c; 479 struct lkpi_hw *lhw; 480 481 chan = NULL; 482 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 483 c = ni->ni_chan; 484 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 485 c = ic->ic_bsschan; 486 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 487 c = ic->ic_curchan; 488 else 489 c = NULL; 490 491 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 492 lhw = ic->ic_softc; 493 chan = lkpi_find_lkpi80211_chan(lhw, c); 494 } 495 496 return (chan); 497 } 498 499 struct linuxkpi_ieee80211_channel * 500 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 501 { 502 enum nl80211_band band; 503 504 for (band = 0; band < NUM_NL80211_BANDS; band++) { 505 struct ieee80211_supported_band *supband; 506 struct linuxkpi_ieee80211_channel *channels; 507 int i; 508 509 supband = wiphy->bands[band]; 510 if (supband == NULL || supband->n_channels == 0) 511 continue; 512 513 channels = supband->channels; 514 for (i = 0; i < supband->n_channels; i++) { 515 if (channels[i].center_freq == freq) 516 return (&channels[i]); 517 } 518 } 519 520 return (NULL); 521 } 522 523 void 524 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 525 { 526 struct lkpi_hw *lhw; 527 struct ieee80211com *ic; 528 struct ieee80211vap *vap; 529 530 lhw = wiphy_priv(wiphy); 531 ic = lhw->ic; 532 533 /* 534 * If we haven't called ieee80211_ifattach() yet 535 * or there is no VAP, there are no scans to flush. 536 */ 537 if (ic == NULL || 538 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 539 return; 540 541 /* Should only happen on the current one? Not seen it late enough. */ 542 IEEE80211_LOCK(ic); 543 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 544 ieee80211_scan_flush(vap); 545 IEEE80211_UNLOCK(ic); 546 } 547 548 #ifdef LKPI_80211_HW_CRYPTO 549 static int 550 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 551 enum set_key_cmd cmd) 552 { 553 struct ieee80211com *ic; 554 struct lkpi_hw *lhw; 555 struct ieee80211_hw *hw; 556 struct lkpi_vif *lvif; 557 struct ieee80211_vif *vif; 558 struct ieee80211_sta *sta; 559 struct ieee80211_node *ni; 560 struct ieee80211_key_conf *kc; 561 int error; 562 563 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 564 565 ic = vap->iv_ic; 566 lhw = ic->ic_softc; 567 hw = LHW_TO_HW(lhw); 568 lvif = VAP_TO_LVIF(vap); 569 vif = LVIF_TO_VIF(lvif); 570 571 memset(&kc, 0, sizeof(kc)); 572 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 573 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 574 k->wk_cipher->ic_cipher, k->wk_keylen); 575 kc->keyidx = k->wk_keyix; 576 #if 0 577 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 578 #endif 579 atomic64_set(&kc->tx_pn, k->wk_keytsc); 580 kc->keylen = k->wk_keylen; 581 memcpy(kc->key, k->wk_key, k->wk_keylen); 582 583 switch (kc->cipher) { 584 case WLAN_CIPHER_SUITE_CCMP: 585 kc->iv_len = k->wk_cipher->ic_header; 586 kc->icv_len = k->wk_cipher->ic_trailer; 587 break; 588 case WLAN_CIPHER_SUITE_TKIP: 589 default: 590 IMPROVE(); 591 return (0); 592 }; 593 594 ni = vap->iv_bss; 595 sta = ieee80211_find_sta(vif, ni->ni_bssid); 596 if (sta != NULL) { 597 struct lkpi_sta *lsta; 598 599 lsta = STA_TO_LSTA(sta); 600 lsta->kc = kc; 601 } 602 603 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 604 if (error != 0) { 605 /* XXX-BZ leaking kc currently */ 606 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 607 return (0); 608 } else { 609 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 610 "flags %#10x\n", __func__, 611 kc->keyidx, kc->hw_key_idx, kc->flags); 612 return (1); 613 } 614 } 615 616 static int 617 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 618 { 619 620 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 621 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 622 } 623 static int 624 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 625 { 626 627 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 628 } 629 #endif 630 631 static u_int 632 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 633 { 634 struct netdev_hw_addr_list *mc_list; 635 struct netdev_hw_addr *addr; 636 637 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 638 __func__, arg, sdl, cnt)); 639 640 mc_list = arg; 641 /* If it is on the list already skip it. */ 642 netdev_hw_addr_list_for_each(addr, mc_list) { 643 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 644 return (0); 645 } 646 647 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 648 if (addr == NULL) 649 return (0); 650 651 INIT_LIST_HEAD(&addr->addr_list); 652 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 653 /* XXX this should be a netdev function? */ 654 list_add(&addr->addr_list, &mc_list->addr_list); 655 mc_list->count++; 656 657 #ifdef LINUXKPI_DEBUG_80211 658 if (linuxkpi_debug_80211 & D80211_TRACE) 659 printf("%s:%d: mc_list count %d: added %6D\n", 660 __func__, __LINE__, mc_list->count, addr->addr, ":"); 661 #endif 662 663 return (1); 664 } 665 666 static void 667 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 668 { 669 struct lkpi_hw *lhw; 670 struct ieee80211_hw *hw; 671 struct netdev_hw_addr_list mc_list; 672 struct list_head *le, *next; 673 struct netdev_hw_addr *addr; 674 struct ieee80211vap *vap; 675 u64 mc; 676 unsigned int changed_flags, total_flags; 677 678 lhw = ic->ic_softc; 679 680 if (lhw->ops->prepare_multicast == NULL || 681 lhw->ops->configure_filter == NULL) 682 return; 683 684 if (!lhw->update_mc && !force) 685 return; 686 687 changed_flags = total_flags = 0; 688 mc_list.count = 0; 689 INIT_LIST_HEAD(&mc_list.addr_list); 690 if (ic->ic_allmulti == 0) { 691 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 692 if_foreach_llmaddr(vap->iv_ifp, 693 lkpi_ic_update_mcast_copy, &mc_list); 694 } else { 695 changed_flags |= FIF_ALLMULTI; 696 } 697 698 hw = LHW_TO_HW(lhw); 699 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 700 /* 701 * XXX-BZ make sure to get this sorted what is a change, 702 * what gets all set; what was already set? 703 */ 704 total_flags = changed_flags; 705 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 706 707 #ifdef LINUXKPI_DEBUG_80211 708 if (linuxkpi_debug_80211 & D80211_TRACE) 709 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 710 __func__, changed_flags, mc_list.count, total_flags); 711 #endif 712 713 if (mc_list.count != 0) { 714 list_for_each_safe(le, next, &mc_list.addr_list) { 715 addr = list_entry(le, struct netdev_hw_addr, addr_list); 716 free(addr, M_LKPI80211); 717 mc_list.count--; 718 } 719 } 720 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 721 __func__, &mc_list, mc_list.count)); 722 } 723 724 static enum ieee80211_bss_changed 725 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 726 struct ieee80211vap *vap, const char *_f, int _l) 727 { 728 enum ieee80211_bss_changed bss_changed; 729 730 bss_changed = 0; 731 732 #ifdef LINUXKPI_DEBUG_80211 733 if (linuxkpi_debug_80211 & D80211_TRACE) 734 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 735 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 736 "sync_device_ts %u bss_changed %#08x\n", 737 __func__, __LINE__, _f, _l, 738 vif->bss_conf.assoc, vif->bss_conf.aid, 739 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 740 vif->bss_conf.sync_dtim_count, 741 (uintmax_t)vif->bss_conf.sync_tsf, 742 vif->bss_conf.sync_device_ts, 743 bss_changed); 744 #endif 745 746 if (vif->bss_conf.beacon_int != ni->ni_intval) { 747 vif->bss_conf.beacon_int = ni->ni_intval; 748 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 749 if (vif->bss_conf.beacon_int < 16) 750 vif->bss_conf.beacon_int = 16; 751 bss_changed |= BSS_CHANGED_BEACON_INT; 752 } 753 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 754 vap->iv_dtim_period > 0) { 755 vif->bss_conf.dtim_period = vap->iv_dtim_period; 756 bss_changed |= BSS_CHANGED_BEACON_INFO; 757 } 758 759 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 760 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 761 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 762 763 #ifdef LINUXKPI_DEBUG_80211 764 if (linuxkpi_debug_80211 & D80211_TRACE) 765 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 766 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 767 "sync_device_ts %u bss_changed %#08x\n", 768 __func__, __LINE__, _f, _l, 769 vif->bss_conf.assoc, vif->bss_conf.aid, 770 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 771 vif->bss_conf.sync_dtim_count, 772 (uintmax_t)vif->bss_conf.sync_tsf, 773 vif->bss_conf.sync_device_ts, 774 bss_changed); 775 #endif 776 777 return (bss_changed); 778 } 779 780 static void 781 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 782 { 783 struct ieee80211_hw *hw; 784 int error; 785 786 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) 787 return; 788 789 hw = LHW_TO_HW(lhw); 790 791 IEEE80211_UNLOCK(lhw->ic); 792 LKPI_80211_LHW_LOCK(lhw); 793 /* Need to cancel the scan. */ 794 lkpi_80211_mo_cancel_hw_scan(hw, vif); 795 796 /* Need to make sure we see ieee80211_scan_completed. */ 797 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 798 LKPI_80211_LHW_UNLOCK(lhw); 799 IEEE80211_LOCK(lhw->ic); 800 801 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 802 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 803 __func__, error, lhw, vif); 804 } 805 806 static void 807 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 808 { 809 struct lkpi_hw *lhw; 810 int error; 811 bool old; 812 813 old = hw->conf.flags & IEEE80211_CONF_IDLE; 814 if (old == new) 815 return; 816 817 hw->conf.flags ^= IEEE80211_CONF_IDLE; 818 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 819 if (error != 0 && error != EOPNOTSUPP) { 820 lhw = HW_TO_LHW(hw); 821 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 822 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 823 } 824 } 825 826 static void 827 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 828 struct lkpi_hw *lhw) 829 { 830 sta->aid = 0; 831 if (vif->bss_conf.assoc) { 832 struct ieee80211_hw *hw; 833 enum ieee80211_bss_changed changed; 834 835 lhw->update_mc = true; 836 lkpi_update_mcast_filter(lhw->ic, true); 837 838 changed = 0; 839 vif->bss_conf.assoc = false; 840 vif->bss_conf.aid = 0; 841 changed |= BSS_CHANGED_ASSOC; 842 /* 843 * This will remove the sta from firmware for iwlwifi. 844 * So confusing that they use state and flags and ... ^%$%#%$^. 845 */ 846 IMPROVE(); 847 hw = LHW_TO_HW(lhw); 848 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 849 changed); 850 851 lkpi_hw_conf_idle(hw, true); 852 } 853 } 854 855 static void 856 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 857 bool dequeue_seen, bool no_emptyq) 858 { 859 struct lkpi_txq *ltxq; 860 int tid; 861 862 /* Wake up all queues to know they are allocated in the driver. */ 863 for (tid = 0; tid < nitems(sta->txq); tid++) { 864 865 if (tid == IEEE80211_NUM_TIDS) { 866 IMPROVE("station specific?"); 867 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 868 continue; 869 } else if (tid >= hw->queues) 870 continue; 871 872 if (sta->txq[tid] == NULL) 873 continue; 874 875 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 876 if (dequeue_seen && !ltxq->seen_dequeue) 877 continue; 878 879 if (no_emptyq && skb_queue_empty(<xq->skbq)) 880 continue; 881 882 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 883 } 884 } 885 886 /* -------------------------------------------------------------------------- */ 887 888 static int 889 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 890 { 891 892 return (0); 893 } 894 895 /* lkpi_iv_newstate() handles the stop scan case generally. */ 896 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 897 898 static int 899 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 900 { 901 struct linuxkpi_ieee80211_channel *chan; 902 struct ieee80211_chanctx_conf *conf; 903 struct lkpi_hw *lhw; 904 struct ieee80211_hw *hw; 905 struct lkpi_vif *lvif; 906 struct ieee80211_vif *vif; 907 struct ieee80211_node *ni; 908 struct lkpi_sta *lsta; 909 struct ieee80211_sta *sta; 910 enum ieee80211_bss_changed bss_changed; 911 struct ieee80211_prep_tx_info prep_tx_info; 912 uint32_t changed; 913 int error; 914 915 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 916 if (chan == NULL) { 917 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 918 return (ESRCH); 919 } 920 921 lhw = vap->iv_ic->ic_softc; 922 hw = LHW_TO_HW(lhw); 923 lvif = VAP_TO_LVIF(vap); 924 vif = LVIF_TO_VIF(lvif); 925 926 ni = ieee80211_ref_node(vap->iv_bss); 927 928 IEEE80211_UNLOCK(vap->iv_ic); 929 930 /* Add chanctx (or if exists, change it). */ 931 if (vif->chanctx_conf != NULL) { 932 conf = vif->chanctx_conf; 933 IMPROVE("diff changes for changed, working on live copy, rcu"); 934 } else { 935 /* Keep separate alloc as in Linux this is rcu managed? */ 936 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 937 M_LKPI80211, M_WAITOK | M_ZERO); 938 } 939 940 conf->rx_chains_dynamic = 1; 941 conf->rx_chains_static = 1; 942 conf->radar_enabled = 943 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 944 conf->def.chan = chan; 945 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 946 conf->def.center_freq1 = chan->center_freq; 947 conf->def.center_freq2 = 0; 948 /* Responder ... */ 949 conf->min_def.chan = chan; 950 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 951 conf->min_def.center_freq1 = chan->center_freq; 952 conf->min_def.center_freq2 = 0; 953 IMPROVE("currently 20_NOHT only"); 954 955 error = 0; 956 if (vif->chanctx_conf != NULL) { 957 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 958 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 959 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 960 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 961 lkpi_80211_mo_change_chanctx(hw, conf, changed); 962 } else { 963 error = lkpi_80211_mo_add_chanctx(hw, conf); 964 if (error == 0 || error == EOPNOTSUPP) { 965 vif->bss_conf.chandef.chan = conf->def.chan; 966 vif->bss_conf.chandef.width = conf->def.width; 967 vif->bss_conf.chandef.center_freq1 = 968 conf->def.center_freq1; 969 vif->bss_conf.chandef.center_freq2 = 970 conf->def.center_freq2; 971 } else { 972 goto out; 973 } 974 /* Assign vif chanctx. */ 975 if (error == 0) 976 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 977 if (error == EOPNOTSUPP) 978 error = 0; 979 if (error != 0) { 980 lkpi_80211_mo_remove_chanctx(hw, conf); 981 free(conf, M_LKPI80211); 982 goto out; 983 } 984 } 985 IMPROVE("update radiotap chan fields too"); 986 987 /* Set bss info (bss_info_changed). */ 988 bss_changed = 0; 989 vif->bss_conf.bssid = ni->ni_bssid; 990 bss_changed |= BSS_CHANGED_BSSID; 991 vif->bss_conf.txpower = ni->ni_txpower; 992 bss_changed |= BSS_CHANGED_TXPOWER; 993 vif->bss_conf.idle = false; 994 bss_changed |= BSS_CHANGED_IDLE; 995 996 /* Should almost assert it is this. */ 997 vif->bss_conf.assoc = false; 998 vif->bss_conf.aid = 0; 999 1000 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1001 1002 /* RATES */ 1003 IMPROVE("bss info: not all needs to come now and rates are missing"); 1004 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1005 1006 /* 1007 * This is a bandaid for now. If we went through (*iv_update_bss)() 1008 * and then removed the lsta we end up here without a lsta and have 1009 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1010 * would normally do. 1011 * XXX-BZ I do not like this but currently we have no good way of 1012 * intercepting the bss swap and state changes and packets going out 1013 * workflow so live with this. It is a compat layer after all. 1014 */ 1015 if (ni->ni_drv_data == NULL) { 1016 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1017 if (lsta == NULL) { 1018 error = ENOMEM; 1019 goto out; 1020 } 1021 lsta->ni = ieee80211_ref_node(ni); 1022 } else { 1023 lsta = ni->ni_drv_data; 1024 } 1025 1026 /* Insert the [l]sta into the list of known stations. */ 1027 LKPI_80211_LVIF_LOCK(lvif); 1028 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1029 LKPI_80211_LVIF_UNLOCK(lvif); 1030 1031 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1032 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1033 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1034 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1035 sta = LSTA_TO_STA(lsta); 1036 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1037 if (error != 0) { 1038 IMPROVE("do we need to undo the chan ctx?"); 1039 goto out; 1040 } 1041 #if 0 1042 lsta->added_to_drv = true; /* mo manages. */ 1043 #endif 1044 1045 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1046 1047 /* 1048 * Wakeup all queues now that sta is there so we have as much time to 1049 * possibly prepare the queue in the driver to be ready for the 1st 1050 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1051 * is no guarantee or way to check. 1052 * XXX-BZ and by now we know that this does not work on all drivers 1053 * for all queues. 1054 */ 1055 lkpi_wake_tx_queues(hw, sta, false, false); 1056 1057 /* Start mgd_prepare_tx. */ 1058 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1059 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1060 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1061 lsta->in_mgd = true; 1062 1063 /* 1064 * What is going to happen next: 1065 * - <twiddle> .. we should end up in "auth_to_assoc" 1066 * - event_callback 1067 * - update sta_state (NONE to AUTH) 1068 * - mgd_complete_tx 1069 * (ideally we'd do that on a callback for something else ...) 1070 */ 1071 1072 out: 1073 IEEE80211_LOCK(vap->iv_ic); 1074 if (ni != NULL) 1075 ieee80211_free_node(ni); 1076 return (error); 1077 } 1078 1079 static int 1080 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1081 { 1082 struct lkpi_hw *lhw; 1083 struct ieee80211_hw *hw; 1084 struct lkpi_vif *lvif; 1085 struct ieee80211_vif *vif; 1086 struct ieee80211_node *ni; 1087 struct lkpi_sta *lsta; 1088 struct ieee80211_sta *sta; 1089 struct ieee80211_prep_tx_info prep_tx_info; 1090 int error; 1091 1092 lhw = vap->iv_ic->ic_softc; 1093 hw = LHW_TO_HW(lhw); 1094 lvif = VAP_TO_LVIF(vap); 1095 vif = LVIF_TO_VIF(lvif); 1096 1097 /* Keep ni around. */ 1098 ni = ieee80211_ref_node(vap->iv_bss); 1099 lsta = ni->ni_drv_data; 1100 sta = LSTA_TO_STA(lsta); 1101 1102 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1103 1104 IEEE80211_UNLOCK(vap->iv_ic); 1105 1106 /* flush, drop. */ 1107 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1108 1109 /* Wake tx queues to get packet(s) out. */ 1110 lkpi_wake_tx_queues(hw, sta, true, true); 1111 1112 /* flush, no drop */ 1113 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1114 1115 /* End mgd_complete_tx. */ 1116 if (lsta->in_mgd) { 1117 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1118 prep_tx_info.success = false; 1119 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1120 lsta->in_mgd = false; 1121 } 1122 1123 /* sync_rx_queues */ 1124 lkpi_80211_mo_sync_rx_queues(hw); 1125 1126 /* sta_pre_rcu_remove */ 1127 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1128 1129 /* Take the station down. */ 1130 1131 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1132 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1133 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1134 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1135 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1136 if (error != 0) { 1137 IMPROVE("do we need to undo the chan ctx?"); 1138 goto out; 1139 } 1140 #if 0 1141 lsta->added_to_drv = false; /* mo manages. */ 1142 #endif 1143 1144 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1145 1146 lkpi_lsta_remove(lsta, lvif); 1147 1148 /* conf_tx */ 1149 1150 /* Take the chan ctx down. */ 1151 if (vif->chanctx_conf != NULL) { 1152 struct ieee80211_chanctx_conf *conf; 1153 1154 conf = vif->chanctx_conf; 1155 /* Remove vif context. */ 1156 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1157 /* NB: vif->chanctx_conf is NULL now. */ 1158 1159 /* Remove chan ctx. */ 1160 lkpi_80211_mo_remove_chanctx(hw, conf); 1161 free(conf, M_LKPI80211); 1162 } 1163 1164 out: 1165 IEEE80211_LOCK(vap->iv_ic); 1166 if (ni != NULL) 1167 ieee80211_free_node(ni); 1168 return (error); 1169 } 1170 1171 static int 1172 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1173 { 1174 int error; 1175 1176 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1177 if (error == 0) 1178 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1179 return (error); 1180 } 1181 1182 static int 1183 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1184 { 1185 struct lkpi_hw *lhw; 1186 struct ieee80211_hw *hw; 1187 struct lkpi_vif *lvif; 1188 struct ieee80211_vif *vif; 1189 struct ieee80211_node *ni; 1190 struct lkpi_sta *lsta; 1191 struct ieee80211_sta *sta; 1192 struct ieee80211_prep_tx_info prep_tx_info; 1193 int error; 1194 1195 lhw = vap->iv_ic->ic_softc; 1196 hw = LHW_TO_HW(lhw); 1197 lvif = VAP_TO_LVIF(vap); 1198 vif = LVIF_TO_VIF(lvif); 1199 1200 IEEE80211_UNLOCK(vap->iv_ic); 1201 ni = NULL; 1202 1203 /* Finish auth. */ 1204 IMPROVE("event callback"); 1205 1206 /* Update sta_state (NONE to AUTH). */ 1207 ni = ieee80211_ref_node(vap->iv_bss); 1208 lsta = ni->ni_drv_data; 1209 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1210 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1211 "NONE: %#x\n", __func__, lsta, lsta->state)); 1212 sta = LSTA_TO_STA(lsta); 1213 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1214 if (error != 0) 1215 goto out; 1216 1217 /* End mgd_complete_tx. */ 1218 if (lsta->in_mgd) { 1219 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1220 prep_tx_info.success = true; 1221 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1222 lsta->in_mgd = false; 1223 } 1224 1225 /* Now start assoc. */ 1226 1227 /* Start mgd_prepare_tx. */ 1228 if (!lsta->in_mgd) { 1229 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1230 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1231 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1232 lsta->in_mgd = true; 1233 } 1234 1235 /* Wake tx queue to get packet out. */ 1236 lkpi_wake_tx_queues(hw, sta, true, true); 1237 1238 /* 1239 * <twiddle> .. we end up in "assoc_to_run" 1240 * - update sta_state (AUTH to ASSOC) 1241 * - conf_tx [all] 1242 * - bss_info_changed (assoc, aid, ssid, ..) 1243 * - change_chanctx (if needed) 1244 * - event_callback 1245 * - mgd_complete_tx 1246 */ 1247 1248 out: 1249 IEEE80211_LOCK(vap->iv_ic); 1250 if (ni != NULL) 1251 ieee80211_free_node(ni); 1252 return (error); 1253 } 1254 1255 /* auth_to_auth, assoc_to_assoc. */ 1256 static int 1257 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1258 { 1259 struct lkpi_hw *lhw; 1260 struct ieee80211_hw *hw; 1261 struct lkpi_vif *lvif; 1262 struct ieee80211_vif *vif; 1263 struct ieee80211_node *ni; 1264 struct lkpi_sta *lsta; 1265 struct ieee80211_prep_tx_info prep_tx_info; 1266 1267 lhw = vap->iv_ic->ic_softc; 1268 hw = LHW_TO_HW(lhw); 1269 lvif = VAP_TO_LVIF(vap); 1270 vif = LVIF_TO_VIF(lvif); 1271 1272 ni = ieee80211_ref_node(vap->iv_bss); 1273 1274 IEEE80211_UNLOCK(vap->iv_ic); 1275 lsta = ni->ni_drv_data; 1276 1277 IMPROVE("event callback?"); 1278 1279 /* End mgd_complete_tx. */ 1280 if (lsta->in_mgd) { 1281 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1282 prep_tx_info.success = false; 1283 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1284 lsta->in_mgd = false; 1285 } 1286 1287 /* Now start assoc. */ 1288 1289 /* Start mgd_prepare_tx. */ 1290 if (!lsta->in_mgd) { 1291 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1292 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1293 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1294 lsta->in_mgd = true; 1295 } 1296 1297 IEEE80211_LOCK(vap->iv_ic); 1298 if (ni != NULL) 1299 ieee80211_free_node(ni); 1300 1301 return (0); 1302 } 1303 1304 static int 1305 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1306 { 1307 struct lkpi_hw *lhw; 1308 struct ieee80211_hw *hw; 1309 struct lkpi_vif *lvif; 1310 struct ieee80211_vif *vif; 1311 struct ieee80211_node *ni; 1312 struct lkpi_sta *lsta; 1313 struct ieee80211_sta *sta; 1314 struct ieee80211_prep_tx_info prep_tx_info; 1315 enum ieee80211_bss_changed bss_changed; 1316 int error; 1317 1318 lhw = vap->iv_ic->ic_softc; 1319 hw = LHW_TO_HW(lhw); 1320 lvif = VAP_TO_LVIF(vap); 1321 vif = LVIF_TO_VIF(lvif); 1322 1323 /* Keep ni around. */ 1324 ni = ieee80211_ref_node(vap->iv_bss); 1325 lsta = ni->ni_drv_data; 1326 sta = LSTA_TO_STA(lsta); 1327 1328 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1329 1330 IEEE80211_UNLOCK(vap->iv_ic); 1331 1332 /* flush, drop. */ 1333 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1334 1335 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1336 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1337 !lsta->in_mgd) { 1338 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1339 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1340 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1341 lsta->in_mgd = true; 1342 } 1343 1344 IEEE80211_LOCK(vap->iv_ic); 1345 1346 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1347 error = lvif->iv_newstate(vap, nstate, arg); 1348 if (error != 0) 1349 goto outni; 1350 1351 IEEE80211_UNLOCK(vap->iv_ic); 1352 1353 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1354 1355 /* Wake tx queues to get packet(s) out. */ 1356 lkpi_wake_tx_queues(hw, sta, true, true); 1357 1358 /* flush, no drop */ 1359 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1360 1361 /* End mgd_complete_tx. */ 1362 if (lsta->in_mgd) { 1363 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1364 prep_tx_info.success = false; 1365 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1366 lsta->in_mgd = false; 1367 } 1368 1369 /* sync_rx_queues */ 1370 lkpi_80211_mo_sync_rx_queues(hw); 1371 1372 /* sta_pre_rcu_remove */ 1373 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1374 1375 /* Take the station down. */ 1376 1377 /* Update sta and change state (from AUTH) to NONE. */ 1378 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1379 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1380 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1381 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1382 if (error != 0) 1383 goto out; 1384 1385 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1386 1387 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1388 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1389 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1390 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1391 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1392 if (error != 0) { 1393 IMPROVE("do we need to undo the chan ctx?"); 1394 goto out; 1395 } 1396 #if 0 1397 lsta->added_to_drv = false; /* mo manages. */ 1398 #endif 1399 1400 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1401 1402 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1403 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1404 lkpi_disassoc(sta, vif, lhw); 1405 1406 IMPROVE("Any bss_info changes to announce?"); 1407 bss_changed = 0; 1408 vif->bss_conf.qos = 0; 1409 bss_changed |= BSS_CHANGED_QOS; 1410 vif->bss_conf.ssid_len = 0; 1411 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1412 bss_changed |= BSS_CHANGED_BSSID; 1413 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1414 1415 lkpi_lsta_remove(lsta, lvif); 1416 1417 /* conf_tx */ 1418 1419 /* Take the chan ctx down. */ 1420 if (vif->chanctx_conf != NULL) { 1421 struct ieee80211_chanctx_conf *conf; 1422 1423 conf = vif->chanctx_conf; 1424 /* Remove vif context. */ 1425 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1426 /* NB: vif->chanctx_conf is NULL now. */ 1427 1428 /* Remove chan ctx. */ 1429 lkpi_80211_mo_remove_chanctx(hw, conf); 1430 free(conf, M_LKPI80211); 1431 } 1432 1433 error = EALREADY; 1434 out: 1435 IEEE80211_LOCK(vap->iv_ic); 1436 outni: 1437 if (ni != NULL) 1438 ieee80211_free_node(ni); 1439 return (error); 1440 } 1441 1442 static int 1443 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1444 { 1445 int error; 1446 1447 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1448 if (error != 0 && error != EALREADY) 1449 return (error); 1450 1451 /* At this point iv_bss is long a new node! */ 1452 1453 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1454 return (error); 1455 } 1456 1457 static int 1458 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1459 { 1460 int error; 1461 1462 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1463 return (error); 1464 } 1465 1466 static int 1467 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1468 { 1469 int error; 1470 1471 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1472 return (error); 1473 } 1474 1475 static int 1476 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1477 { 1478 struct lkpi_hw *lhw; 1479 struct ieee80211_hw *hw; 1480 struct lkpi_vif *lvif; 1481 struct ieee80211_vif *vif; 1482 struct ieee80211_node *ni; 1483 struct lkpi_sta *lsta; 1484 struct ieee80211_sta *sta; 1485 struct ieee80211_prep_tx_info prep_tx_info; 1486 enum ieee80211_bss_changed bss_changed; 1487 int error; 1488 1489 lhw = vap->iv_ic->ic_softc; 1490 hw = LHW_TO_HW(lhw); 1491 lvif = VAP_TO_LVIF(vap); 1492 vif = LVIF_TO_VIF(lvif); 1493 1494 IEEE80211_UNLOCK(vap->iv_ic); 1495 ni = NULL; 1496 1497 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1498 "and to lesser extend ieee80211_notify_node_join"); 1499 1500 /* Finish assoc. */ 1501 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1502 ni = ieee80211_ref_node(vap->iv_bss); 1503 lsta = ni->ni_drv_data; 1504 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1505 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1506 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1507 sta = LSTA_TO_STA(lsta); 1508 sta->aid = IEEE80211_NODE_AID(ni); 1509 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1510 if (error != 0) 1511 goto out; 1512 1513 IMPROVE("wme / conf_tx [all]"); 1514 1515 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1516 bss_changed = 0; 1517 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1518 vif->bss_conf.assoc = true; 1519 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1520 bss_changed |= BSS_CHANGED_ASSOC; 1521 } 1522 /* We set SSID but this is not BSSID! */ 1523 vif->bss_conf.ssid_len = ni->ni_esslen; 1524 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1525 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1526 vif->bss_conf.use_short_preamble) { 1527 vif->bss_conf.use_short_preamble ^= 1; 1528 /* bss_changed |= BSS_CHANGED_??? */ 1529 } 1530 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1531 vif->bss_conf.use_short_slot) { 1532 vif->bss_conf.use_short_slot ^= 1; 1533 /* bss_changed |= BSS_CHANGED_??? */ 1534 } 1535 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1536 vif->bss_conf.qos) { 1537 vif->bss_conf.qos ^= 1; 1538 bss_changed |= BSS_CHANGED_QOS; 1539 } 1540 1541 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1542 1543 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1544 1545 /* - change_chanctx (if needed) 1546 * - event_callback 1547 */ 1548 1549 /* End mgd_complete_tx. */ 1550 if (lsta->in_mgd) { 1551 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1552 prep_tx_info.success = true; 1553 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1554 lsta->in_mgd = false; 1555 } 1556 1557 lkpi_hw_conf_idle(hw, false); 1558 1559 /* 1560 * And then: 1561 * - (more packets)? 1562 * - set_key 1563 * - set_default_unicast_key 1564 * - set_key (?) 1565 * - ipv6_addr_change (?) 1566 */ 1567 /* Prepare_multicast && configure_filter. */ 1568 lhw->update_mc = true; 1569 lkpi_update_mcast_filter(vap->iv_ic, true); 1570 1571 if (!ieee80211_node_is_authorized(ni)) { 1572 IMPROVE("net80211 does not consider node authorized"); 1573 } 1574 1575 /* Update sta_state (ASSOC to AUTHORIZED). */ 1576 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1577 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1578 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1579 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1580 if (error != 0) { 1581 IMPROVE("undo some changes?"); 1582 goto out; 1583 } 1584 1585 /* - drv_config (?) 1586 * - bss_info_changed 1587 * - set_rekey_data (?) 1588 * 1589 * And now we should be passing packets. 1590 */ 1591 IMPROVE("Need that bssid setting, and the keys"); 1592 1593 bss_changed = 0; 1594 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1595 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1596 1597 out: 1598 IEEE80211_LOCK(vap->iv_ic); 1599 if (ni != NULL) 1600 ieee80211_free_node(ni); 1601 return (error); 1602 } 1603 1604 static int 1605 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1606 { 1607 int error; 1608 1609 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1610 if (error == 0) 1611 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1612 return (error); 1613 } 1614 1615 static int 1616 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1617 { 1618 struct lkpi_hw *lhw; 1619 struct ieee80211_hw *hw; 1620 struct lkpi_vif *lvif; 1621 struct ieee80211_vif *vif; 1622 struct ieee80211_node *ni; 1623 struct lkpi_sta *lsta; 1624 struct ieee80211_sta *sta; 1625 struct ieee80211_prep_tx_info prep_tx_info; 1626 #if 0 1627 enum ieee80211_bss_changed bss_changed; 1628 #endif 1629 int error; 1630 1631 lhw = vap->iv_ic->ic_softc; 1632 hw = LHW_TO_HW(lhw); 1633 lvif = VAP_TO_LVIF(vap); 1634 vif = LVIF_TO_VIF(lvif); 1635 1636 /* Keep ni around. */ 1637 ni = ieee80211_ref_node(vap->iv_bss); 1638 lsta = ni->ni_drv_data; 1639 sta = LSTA_TO_STA(lsta); 1640 1641 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1642 1643 IEEE80211_UNLOCK(vap->iv_ic); 1644 1645 /* flush, drop. */ 1646 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1647 1648 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1649 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1650 !lsta->in_mgd) { 1651 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1652 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1653 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1654 lsta->in_mgd = true; 1655 } 1656 1657 IEEE80211_LOCK(vap->iv_ic); 1658 1659 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1660 error = lvif->iv_newstate(vap, nstate, arg); 1661 if (error != 0) 1662 goto outni; 1663 1664 IEEE80211_UNLOCK(vap->iv_ic); 1665 1666 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1667 1668 /* Wake tx queues to get packet(s) out. */ 1669 lkpi_wake_tx_queues(hw, sta, true, true); 1670 1671 /* flush, no drop */ 1672 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1673 1674 /* End mgd_complete_tx. */ 1675 if (lsta->in_mgd) { 1676 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1677 prep_tx_info.success = false; 1678 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1679 lsta->in_mgd = false; 1680 } 1681 1682 #if 0 1683 /* sync_rx_queues */ 1684 lkpi_80211_mo_sync_rx_queues(hw); 1685 1686 /* sta_pre_rcu_remove */ 1687 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1688 #endif 1689 1690 /* Take the station down. */ 1691 1692 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1693 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1694 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1695 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1696 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1697 if (error != 0) 1698 goto out; 1699 1700 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1701 1702 /* Update sta_state (ASSOC to AUTH). */ 1703 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1704 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1705 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1706 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1707 if (error != 0) 1708 goto out; 1709 1710 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1711 1712 #if 0 1713 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1714 lkpi_disassoc(sta, vif, lhw); 1715 #endif 1716 1717 error = EALREADY; 1718 out: 1719 IEEE80211_LOCK(vap->iv_ic); 1720 outni: 1721 if (ni != NULL) 1722 ieee80211_free_node(ni); 1723 return (error); 1724 } 1725 1726 static int 1727 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1728 { 1729 struct lkpi_hw *lhw; 1730 struct ieee80211_hw *hw; 1731 struct lkpi_vif *lvif; 1732 struct ieee80211_vif *vif; 1733 struct ieee80211_node *ni; 1734 struct lkpi_sta *lsta; 1735 struct ieee80211_sta *sta; 1736 struct ieee80211_prep_tx_info prep_tx_info; 1737 enum ieee80211_bss_changed bss_changed; 1738 int error; 1739 1740 lhw = vap->iv_ic->ic_softc; 1741 hw = LHW_TO_HW(lhw); 1742 lvif = VAP_TO_LVIF(vap); 1743 vif = LVIF_TO_VIF(lvif); 1744 1745 /* Keep ni around. */ 1746 ni = ieee80211_ref_node(vap->iv_bss); 1747 lsta = ni->ni_drv_data; 1748 sta = LSTA_TO_STA(lsta); 1749 1750 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1751 1752 IEEE80211_UNLOCK(vap->iv_ic); 1753 1754 /* flush, drop. */ 1755 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1756 1757 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1758 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1759 !lsta->in_mgd) { 1760 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1761 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1762 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1763 lsta->in_mgd = true; 1764 } 1765 1766 IEEE80211_LOCK(vap->iv_ic); 1767 1768 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1769 error = lvif->iv_newstate(vap, nstate, arg); 1770 if (error != 0) 1771 goto outni; 1772 1773 IEEE80211_UNLOCK(vap->iv_ic); 1774 1775 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1776 1777 /* Wake tx queues to get packet(s) out. */ 1778 lkpi_wake_tx_queues(hw, sta, true, true); 1779 1780 /* flush, no drop */ 1781 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1782 1783 /* End mgd_complete_tx. */ 1784 if (lsta->in_mgd) { 1785 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1786 prep_tx_info.success = false; 1787 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1788 lsta->in_mgd = false; 1789 } 1790 1791 /* sync_rx_queues */ 1792 lkpi_80211_mo_sync_rx_queues(hw); 1793 1794 /* sta_pre_rcu_remove */ 1795 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1796 1797 /* Take the station down. */ 1798 1799 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1800 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1801 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1802 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1803 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1804 if (error != 0) 1805 goto out; 1806 1807 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1808 1809 /* Update sta_state (ASSOC to AUTH). */ 1810 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1811 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1812 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1813 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1814 if (error != 0) 1815 goto out; 1816 1817 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1818 1819 /* Update sta and change state (from AUTH) to NONE. */ 1820 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1821 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1822 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1823 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1824 if (error != 0) 1825 goto out; 1826 1827 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1828 1829 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1830 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1831 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1832 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1833 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1834 if (error != 0) { 1835 IMPROVE("do we need to undo the chan ctx?"); 1836 goto out; 1837 } 1838 #if 0 1839 lsta->added_to_drv = false; /* mo manages. */ 1840 #endif 1841 1842 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1843 1844 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1845 /* 1846 * One would expect this to happen when going off AUTHORIZED. 1847 * See comment there; removes the sta from fw. 1848 */ 1849 lkpi_disassoc(sta, vif, lhw); 1850 1851 IMPROVE("Any bss_info changes to announce?"); 1852 bss_changed = 0; 1853 vif->bss_conf.qos = 0; 1854 bss_changed |= BSS_CHANGED_QOS; 1855 vif->bss_conf.ssid_len = 0; 1856 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1857 bss_changed |= BSS_CHANGED_BSSID; 1858 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1859 1860 lkpi_lsta_remove(lsta, lvif); 1861 1862 /* conf_tx */ 1863 1864 /* Take the chan ctx down. */ 1865 if (vif->chanctx_conf != NULL) { 1866 struct ieee80211_chanctx_conf *conf; 1867 1868 conf = vif->chanctx_conf; 1869 /* Remove vif context. */ 1870 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1871 /* NB: vif->chanctx_conf is NULL now. */ 1872 1873 /* Remove chan ctx. */ 1874 lkpi_80211_mo_remove_chanctx(hw, conf); 1875 free(conf, M_LKPI80211); 1876 } 1877 1878 error = EALREADY; 1879 out: 1880 IEEE80211_LOCK(vap->iv_ic); 1881 outni: 1882 if (ni != NULL) 1883 ieee80211_free_node(ni); 1884 return (error); 1885 } 1886 1887 static int 1888 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1889 { 1890 1891 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1892 } 1893 1894 static int 1895 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1896 { 1897 int error; 1898 1899 error = lkpi_sta_run_to_init(vap, nstate, arg); 1900 if (error != 0 && error != EALREADY) 1901 return (error); 1902 1903 /* At this point iv_bss is long a new node! */ 1904 1905 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1906 return (error); 1907 } 1908 1909 /* -------------------------------------------------------------------------- */ 1910 1911 /* 1912 * The matches the documented state changes in net80211::sta_newstate(). 1913 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1914 * there are "invalid" (so there is a room for failure here). 1915 */ 1916 struct fsm_state { 1917 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1918 enum ieee80211_state ostate; 1919 enum ieee80211_state nstate; 1920 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1921 } sta_state_fsm[] = { 1922 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1923 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1924 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1925 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1926 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1927 1928 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1929 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1930 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1931 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1932 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1933 1934 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1935 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1936 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1937 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1938 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1939 1940 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1941 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1942 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1943 1944 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1945 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1946 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1947 1948 /* Dummy at the end without handler. */ 1949 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1950 }; 1951 1952 static int 1953 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1954 { 1955 struct ieee80211com *ic; 1956 struct lkpi_hw *lhw; 1957 struct lkpi_vif *lvif; 1958 struct ieee80211_vif *vif; 1959 struct fsm_state *s; 1960 enum ieee80211_state ostate; 1961 int error; 1962 1963 ic = vap->iv_ic; 1964 IEEE80211_LOCK_ASSERT(ic); 1965 ostate = vap->iv_state; 1966 1967 #ifdef LINUXKPI_DEBUG_80211 1968 if (linuxkpi_debug_80211 & D80211_TRACE) 1969 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1970 __func__, __LINE__, vap, nstate, arg); 1971 #endif 1972 1973 if (vap->iv_opmode == IEEE80211_M_STA) { 1974 1975 lhw = ic->ic_softc; 1976 lvif = VAP_TO_LVIF(vap); 1977 vif = LVIF_TO_VIF(lvif); 1978 1979 /* No need to replicate this in most state handlers. */ 1980 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1981 lkpi_stop_hw_scan(lhw, vif); 1982 1983 s = sta_state_fsm; 1984 1985 } else { 1986 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 1987 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 1988 return (ENOSYS); 1989 } 1990 1991 error = 0; 1992 for (; s->handler != NULL; s++) { 1993 if (ostate == s->ostate && nstate == s->nstate) { 1994 #ifdef LINUXKPI_DEBUG_80211 1995 if (linuxkpi_debug_80211 & D80211_TRACE) 1996 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 1997 " %d (%s): arg %d.\n", __func__, 1998 ostate, ieee80211_state_name[ostate], 1999 nstate, ieee80211_state_name[nstate], arg); 2000 #endif 2001 error = s->handler(vap, nstate, arg); 2002 break; 2003 } 2004 } 2005 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2006 2007 if (s->handler == NULL) { 2008 IMPROVE("turn this into a KASSERT\n"); 2009 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2010 "%d (%s) -> %d (%s)\n", __func__, 2011 ostate, ieee80211_state_name[ostate], 2012 nstate, ieee80211_state_name[nstate]); 2013 return (ENOSYS); 2014 } 2015 2016 if (error == EALREADY) { 2017 #ifdef LINUXKPI_DEBUG_80211 2018 if (linuxkpi_debug_80211 & D80211_TRACE) 2019 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2020 "%d (%s): iv_newstate already handled: %d.\n", 2021 __func__, ostate, ieee80211_state_name[ostate], 2022 nstate, ieee80211_state_name[nstate], error); 2023 #endif 2024 return (0); 2025 } 2026 2027 if (error != 0) { 2028 /* XXX-BZ currently expected so ignore. */ 2029 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2030 "%d (%s) -> %d (%s)\n", __func__, error, 2031 ostate, ieee80211_state_name[ostate], 2032 nstate, ieee80211_state_name[nstate]); 2033 /* return (error); */ 2034 } 2035 2036 #ifdef LINUXKPI_DEBUG_80211 2037 if (linuxkpi_debug_80211 & D80211_TRACE) 2038 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2039 "calling net80211 parent\n", 2040 __func__, __LINE__, vap, nstate, arg); 2041 #endif 2042 2043 return (lvif->iv_newstate(vap, nstate, arg)); 2044 } 2045 2046 /* -------------------------------------------------------------------------- */ 2047 2048 /* 2049 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2050 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2051 * new node without us knowing and thus our ni/lsta are out of sync. 2052 */ 2053 static struct ieee80211_node * 2054 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2055 { 2056 struct lkpi_vif *lvif; 2057 struct ieee80211_node *obss; 2058 struct lkpi_sta *lsta; 2059 struct ieee80211_sta *sta; 2060 2061 obss = vap->iv_bss; 2062 2063 #ifdef LINUXKPI_DEBUG_80211 2064 if (linuxkpi_debug_80211 & D80211_TRACE) 2065 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2066 "ni %p ni_drv_data %p\n", __func__, 2067 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2068 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2069 #endif 2070 2071 /* Nothing to copy from. Just return. */ 2072 if (obss == NULL || obss->ni_drv_data == NULL) 2073 goto out; 2074 2075 /* Nothing to copy to. Just return. */ 2076 IMPROVE("clearing the obss might still be needed?"); 2077 if (ni == NULL) 2078 goto out; 2079 2080 /* Nothing changed? panic? */ 2081 if (obss == ni) 2082 goto out; 2083 2084 lsta = obss->ni_drv_data; 2085 obss->ni_drv_data = ni->ni_drv_data; 2086 ni->ni_drv_data = lsta; 2087 if (lsta != NULL) { 2088 lsta->ni = ni; 2089 sta = LSTA_TO_STA(lsta); 2090 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2091 } 2092 lsta = obss->ni_drv_data; 2093 if (lsta != NULL) { 2094 lsta->ni = obss; 2095 sta = LSTA_TO_STA(lsta); 2096 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2097 } 2098 2099 out: 2100 lvif = VAP_TO_LVIF(vap); 2101 return (lvif->iv_update_bss(vap, ni)); 2102 } 2103 2104 static int 2105 lkpi_ic_wme_update(struct ieee80211com *ic) 2106 { 2107 /* This needs queuing and go at the right moment. */ 2108 #ifdef WITH_WME_UPDATE 2109 struct ieee80211vap *vap; 2110 struct lkpi_hw *lhw; 2111 struct ieee80211_hw *hw; 2112 struct lkpi_vif *lvif; 2113 struct ieee80211_vif *vif; 2114 struct chanAccParams chp; 2115 struct wmeParams wmeparr[WME_NUM_AC]; 2116 struct ieee80211_tx_queue_params txqp; 2117 enum ieee80211_bss_changed changed; 2118 int error; 2119 uint16_t ac; 2120 #endif 2121 2122 IMPROVE(); 2123 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2124 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2125 2126 #ifdef WITH_WME_UPDATE 2127 vap = TAILQ_FIRST(&ic->ic_vaps); 2128 if (vap == NULL) 2129 return (0); 2130 2131 /* We should factor this out into per-vap (*wme_update). */ 2132 lhw = ic->ic_softc; 2133 if (lhw->ops->conf_tx == NULL) 2134 return (0); 2135 2136 /* XXX-BZ check amount of hw queues */ 2137 hw = LHW_TO_HW(lhw); 2138 lvif = VAP_TO_LVIF(vap); 2139 vif = LVIF_TO_VIF(lvif); 2140 2141 ieee80211_wme_ic_getparams(ic, &chp); 2142 IEEE80211_LOCK(ic); 2143 for (ac = 0; ac < WME_NUM_AC; ac++) 2144 wmeparr[ac] = chp.cap_wmeParams[ac]; 2145 IEEE80211_UNLOCK(ic); 2146 2147 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2148 LKPI_80211_LHW_LOCK(lhw); 2149 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2150 struct wmeParams *wmep; 2151 2152 /* XXX-BZ should keep this in lvif? */ 2153 wmep = &wmeparr[ac]; 2154 bzero(&txqp, sizeof(txqp)); 2155 txqp.cw_min = wmep->wmep_logcwmin; 2156 txqp.cw_max = wmep->wmep_logcwmax; 2157 txqp.txop = wmep->wmep_txopLimit; 2158 txqp.aifs = wmep->wmep_aifsn; 2159 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2160 if (error != 0) 2161 printf("%s: conf_tx ac %u failed %d\n", 2162 __func__, ac, error); 2163 } 2164 LKPI_80211_LHW_UNLOCK(lhw); 2165 changed = BSS_CHANGED_QOS; 2166 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2167 #endif 2168 2169 return (0); 2170 } 2171 2172 static struct ieee80211vap * 2173 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2174 int unit, enum ieee80211_opmode opmode, int flags, 2175 const uint8_t bssid[IEEE80211_ADDR_LEN], 2176 const uint8_t mac[IEEE80211_ADDR_LEN]) 2177 { 2178 struct lkpi_hw *lhw; 2179 struct ieee80211_hw *hw; 2180 struct lkpi_vif *lvif; 2181 struct ieee80211vap *vap; 2182 struct ieee80211_vif *vif; 2183 enum ieee80211_bss_changed changed; 2184 size_t len; 2185 int error, i; 2186 2187 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2188 return (NULL); 2189 2190 lhw = ic->ic_softc; 2191 hw = LHW_TO_HW(lhw); 2192 2193 len = sizeof(*lvif); 2194 len += hw->vif_data_size; /* vif->drv_priv */ 2195 2196 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2197 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2198 TAILQ_INIT(&lvif->lsta_head); 2199 vap = LVIF_TO_VAP(lvif); 2200 2201 vif = LVIF_TO_VIF(lvif); 2202 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2203 vif->p2p = false; 2204 vif->probe_req_reg = false; 2205 vif->type = lkpi_opmode_to_vif_type(opmode); 2206 lvif->wdev.iftype = vif->type; 2207 /* Need to fill in other fields as well. */ 2208 IMPROVE(); 2209 2210 /* XXX-BZ hardcoded for now! */ 2211 #if 1 2212 vif->chanctx_conf = NULL; 2213 vif->bss_conf.idle = true; 2214 vif->bss_conf.ps = false; 2215 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2216 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2217 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2218 vif->bss_conf.qos = false; 2219 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2220 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2221 vif->bss_conf.assoc = false; 2222 vif->bss_conf.aid = 0; 2223 /* 2224 * We need to initialize it to something as the bss_info_changed call 2225 * will try to copy from it in iwlwifi and NULL is a panic. 2226 * We will set the proper one in scan_to_auth() before being assoc. 2227 * NB: the logic there with using an array as bssid_override and checking 2228 * for non-NULL later is flawed but in their workflow does not seem to 2229 * matter. 2230 */ 2231 vif->bss_conf.bssid = zerobssid; 2232 #endif 2233 #if 0 2234 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2235 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2236 vif->bss_conf.beacon_int = ic->ic_bintval; 2237 /* iwlwifi bug. */ 2238 if (vif->bss_conf.beacon_int < 16) 2239 vif->bss_conf.beacon_int = 16; 2240 #endif 2241 2242 /* Setup queue defaults; driver may override in (*add_interface). */ 2243 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2244 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2245 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2246 else if (hw->queues >= IEEE80211_NUM_ACS) 2247 vif->hw_queue[i] = i; 2248 else 2249 vif->hw_queue[i] = 0; 2250 } 2251 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2252 2253 IMPROVE(); 2254 2255 error = lkpi_80211_mo_start(hw); 2256 if (error != 0) { 2257 printf("%s: failed to start hw: %d\n", __func__, error); 2258 mtx_destroy(&lvif->mtx); 2259 free(lvif, M_80211_VAP); 2260 return (NULL); 2261 } 2262 2263 error = lkpi_80211_mo_add_interface(hw, vif); 2264 if (error != 0) { 2265 IMPROVE(); /* XXX-BZ mo_stop()? */ 2266 printf("%s: failed to add interface: %d\n", __func__, error); 2267 mtx_destroy(&lvif->mtx); 2268 free(lvif, M_80211_VAP); 2269 return (NULL); 2270 } 2271 2272 LKPI_80211_LHW_LVIF_LOCK(lhw); 2273 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2274 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2275 2276 /* Set bss_info. */ 2277 changed = 0; 2278 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2279 2280 /* conf_tx setup; default WME? */ 2281 2282 /* Force MC init. */ 2283 lkpi_update_mcast_filter(ic, true); 2284 2285 IMPROVE(); 2286 2287 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2288 2289 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2290 lvif->iv_newstate = vap->iv_newstate; 2291 vap->iv_newstate = lkpi_iv_newstate; 2292 lvif->iv_update_bss = vap->iv_update_bss; 2293 vap->iv_update_bss = lkpi_iv_update_bss; 2294 2295 /* Key management. */ 2296 if (lhw->ops->set_key != NULL) { 2297 #ifdef LKPI_80211_HW_CRYPTO 2298 vap->iv_key_set = lkpi_iv_key_set; 2299 vap->iv_key_delete = lkpi_iv_key_delete; 2300 #endif 2301 } 2302 2303 ieee80211_ratectl_init(vap); 2304 2305 /* Complete setup. */ 2306 ieee80211_vap_attach(vap, ieee80211_media_change, 2307 ieee80211_media_status, mac); 2308 2309 if (hw->max_listen_interval == 0) 2310 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2311 hw->conf.listen_interval = hw->max_listen_interval; 2312 ic->ic_set_channel(ic); 2313 2314 /* XXX-BZ do we need to be able to update these? */ 2315 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2316 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2317 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2318 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2319 /* any others? */ 2320 IMPROVE(); 2321 2322 return (vap); 2323 } 2324 2325 static void 2326 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2327 { 2328 struct ieee80211com *ic; 2329 struct lkpi_hw *lhw; 2330 struct ieee80211_hw *hw; 2331 struct lkpi_vif *lvif; 2332 struct ieee80211_vif *vif; 2333 2334 lvif = VAP_TO_LVIF(vap); 2335 vif = LVIF_TO_VIF(lvif); 2336 ic = vap->iv_ic; 2337 lhw = ic->ic_softc; 2338 hw = LHW_TO_HW(lhw); 2339 2340 LKPI_80211_LHW_LVIF_LOCK(lhw); 2341 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2342 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2343 lkpi_80211_mo_remove_interface(hw, vif); 2344 2345 ieee80211_ratectl_deinit(vap); 2346 ieee80211_vap_detach(vap); 2347 mtx_destroy(&lvif->mtx); 2348 free(lvif, M_80211_VAP); 2349 } 2350 2351 static void 2352 lkpi_ic_update_mcast(struct ieee80211com *ic) 2353 { 2354 2355 lkpi_update_mcast_filter(ic, false); 2356 TRACEOK(); 2357 } 2358 2359 static void 2360 lkpi_ic_update_promisc(struct ieee80211com *ic) 2361 { 2362 2363 UNIMPLEMENTED; 2364 } 2365 2366 static void 2367 lkpi_ic_update_chw(struct ieee80211com *ic) 2368 { 2369 2370 UNIMPLEMENTED; 2371 } 2372 2373 /* Start / stop device. */ 2374 static void 2375 lkpi_ic_parent(struct ieee80211com *ic) 2376 { 2377 struct lkpi_hw *lhw; 2378 struct ieee80211_hw *hw; 2379 int error; 2380 bool start_all; 2381 2382 IMPROVE(); 2383 2384 lhw = ic->ic_softc; 2385 hw = LHW_TO_HW(lhw); 2386 start_all = false; 2387 2388 if (ic->ic_nrunning > 0) { 2389 error = lkpi_80211_mo_start(hw); 2390 if (error == 0) 2391 start_all = true; 2392 } else { 2393 lkpi_80211_mo_stop(hw); 2394 } 2395 2396 if (start_all) 2397 ieee80211_start_all(ic); 2398 } 2399 2400 bool 2401 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2402 size_t ie_ids_len) 2403 { 2404 int i; 2405 2406 for (i = 0; i < ie_ids_len; i++) { 2407 if (ie == *ie_ids) 2408 return (true); 2409 } 2410 2411 return (false); 2412 } 2413 2414 /* Return true if skipped; false if error. */ 2415 bool 2416 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2417 { 2418 size_t x; 2419 uint8_t l; 2420 2421 x = *xp; 2422 2423 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2424 __func__, x, ies_len, ies)); 2425 l = ies[x + 1]; 2426 x += 2 + l; 2427 2428 if (x > ies_len) 2429 return (false); 2430 2431 *xp = x; 2432 return (true); 2433 } 2434 2435 static uint8_t * 2436 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2437 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2438 { 2439 struct ieee80211_supported_band *supband; 2440 struct linuxkpi_ieee80211_channel *channels; 2441 const struct ieee80211_channel *chan; 2442 const struct ieee80211_rateset *rs; 2443 uint8_t *pb; 2444 int band, i; 2445 2446 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2447 if ((band_mask & (1 << band)) == 0) 2448 continue; 2449 2450 supband = hw->wiphy->bands[band]; 2451 /* 2452 * This should not happen; 2453 * band_mask is a bitmask of valid bands to scan on. 2454 */ 2455 if (supband == NULL || supband->n_channels == 0) 2456 continue; 2457 2458 /* Find a first channel to get the mode and rates from. */ 2459 channels = supband->channels; 2460 chan = NULL; 2461 for (i = 0; i < supband->n_channels; i++) { 2462 2463 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2464 continue; 2465 2466 chan = ieee80211_find_channel(vap->iv_ic, 2467 channels[i].center_freq, 0); 2468 if (chan != NULL) 2469 break; 2470 } 2471 2472 /* This really should not happen. */ 2473 if (chan == NULL) 2474 continue; 2475 2476 pb = p; 2477 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2478 p = ieee80211_add_rates(p, rs); 2479 p = ieee80211_add_xrates(p, rs); 2480 2481 scan_ies->ies[band] = pb; 2482 scan_ies->len[band] = p - pb; 2483 } 2484 2485 /* Add common_ies */ 2486 pb = p; 2487 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2488 vap->iv_wpa_ie != NULL) { 2489 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2490 p += 2 + vap->iv_wpa_ie[1]; 2491 } 2492 if (vap->iv_appie_probereq != NULL) { 2493 memcpy(p, vap->iv_appie_probereq->ie_data, 2494 vap->iv_appie_probereq->ie_len); 2495 p += vap->iv_appie_probereq->ie_len; 2496 } 2497 scan_ies->common_ies = pb; 2498 scan_ies->common_ie_len = p - pb; 2499 2500 return (p); 2501 } 2502 2503 static void 2504 lkpi_ic_scan_start(struct ieee80211com *ic) 2505 { 2506 struct lkpi_hw *lhw; 2507 struct ieee80211_hw *hw; 2508 struct lkpi_vif *lvif; 2509 struct ieee80211_vif *vif; 2510 struct ieee80211_scan_state *ss; 2511 struct ieee80211vap *vap; 2512 int error; 2513 2514 lhw = ic->ic_softc; 2515 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2516 /* A scan is still running. */ 2517 return; 2518 } 2519 2520 ss = ic->ic_scan; 2521 vap = ss->ss_vap; 2522 if (vap->iv_state != IEEE80211_S_SCAN) { 2523 IMPROVE("We need to be able to scan if not in S_SCAN"); 2524 return; 2525 } 2526 2527 hw = LHW_TO_HW(lhw); 2528 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2529 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2530 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2531 sw_scan: 2532 lvif = VAP_TO_LVIF(vap); 2533 vif = LVIF_TO_VIF(lvif); 2534 2535 if (vap->iv_state == IEEE80211_S_SCAN) 2536 lkpi_hw_conf_idle(hw, false); 2537 2538 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2539 /* net80211::scan_start() handled PS for us. */ 2540 IMPROVE(); 2541 /* XXX Also means it is too late to flush queues? 2542 * need to check iv_sta_ps or overload? */ 2543 /* XXX want to adjust ss end time/ maxdwell? */ 2544 2545 } else { 2546 struct ieee80211_channel *c; 2547 struct ieee80211_scan_request *hw_req; 2548 struct linuxkpi_ieee80211_channel *lc, **cpp; 2549 struct cfg80211_ssid *ssids; 2550 struct cfg80211_scan_6ghz_params *s6gp; 2551 size_t chan_len, nchan, ssids_len, s6ghzlen; 2552 int band, i, ssid_count, common_ie_len; 2553 uint32_t band_mask; 2554 uint8_t *ie, *ieend; 2555 2556 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2557 IMPROVE("individual band scans not yet supported"); 2558 /* In theory net80211 would have to drive this. */ 2559 return; 2560 } 2561 2562 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2563 ssids_len = ssid_count * sizeof(*ssids); 2564 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2565 2566 band_mask = 0; 2567 nchan = 0; 2568 for (i = ss->ss_next; i < ss->ss_last; i++) { 2569 nchan++; 2570 band = lkpi_net80211_chan_to_nl80211_band( 2571 ss->ss_chans[ss->ss_next + i]); 2572 band_mask |= (1 << band); 2573 } 2574 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2575 2576 common_ie_len = 0; 2577 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2578 vap->iv_wpa_ie != NULL) 2579 common_ie_len += vap->iv_wpa_ie[1]; 2580 if (vap->iv_appie_probereq != NULL) 2581 common_ie_len += vap->iv_appie_probereq->ie_len; 2582 2583 /* We would love to check this at an earlier stage... */ 2584 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2585 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2586 "wiphy->max_scan_ie_len %d\n", __func__, 2587 common_ie_len, hw->wiphy->max_scan_ie_len); 2588 } 2589 2590 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2591 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2592 2593 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2594 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2595 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2596 2597 hw_req->req.flags = 0; /* XXX ??? */ 2598 /* hw_req->req.wdev */ 2599 hw_req->req.wiphy = hw->wiphy; 2600 hw_req->req.no_cck = false; /* XXX */ 2601 #if 0 2602 /* This seems to pessimise default scanning behaviour. */ 2603 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2604 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2605 #endif 2606 #ifdef __notyet__ 2607 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2608 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2609 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2610 #endif 2611 2612 hw_req->req.n_channels = nchan; 2613 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2614 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2615 for (i = 0; i < nchan; i++) { 2616 *(cpp + i) = 2617 (struct linuxkpi_ieee80211_channel *)(lc + i); 2618 } 2619 for (i = 0; i < nchan; i++) { 2620 c = ss->ss_chans[ss->ss_next + i]; 2621 2622 lc->hw_value = c->ic_ieee; 2623 lc->center_freq = c->ic_freq; 2624 /* lc->flags */ 2625 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2626 lc->max_power = c->ic_maxpower; 2627 /* lc-> ... */ 2628 lc++; 2629 } 2630 2631 hw_req->req.n_ssids = ssid_count; 2632 if (hw_req->req.n_ssids > 0) { 2633 ssids = (struct cfg80211_ssid *)lc; 2634 hw_req->req.ssids = ssids; 2635 for (i = 0; i < ssid_count; i++) { 2636 ssids->ssid_len = ss->ss_ssid[i].len; 2637 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2638 ss->ss_ssid[i].len); 2639 ssids++; 2640 } 2641 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2642 } else { 2643 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2644 } 2645 2646 /* 6GHz one day. */ 2647 hw_req->req.n_6ghz_params = 0; 2648 hw_req->req.scan_6ghz_params = NULL; 2649 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2650 /* s6gp->... */ 2651 2652 ie = ieend = (uint8_t *)s6gp; 2653 /* Copy per-band IEs, copy common IEs */ 2654 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2655 hw_req->req.ie = ie; 2656 hw_req->req.ie_len = ieend - ie; 2657 2658 lvif = VAP_TO_LVIF(vap); 2659 vif = LVIF_TO_VIF(lvif); 2660 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2661 if (error != 0) { 2662 ieee80211_cancel_scan(vap); 2663 2664 free(hw_req, M_LKPI80211); 2665 lhw->hw_req = NULL; 2666 2667 /* 2668 * XXX-SIGH magic number. 2669 * rtw88 has a magic "return 1" if offloading scan is 2670 * not possible. Fall back to sw scan in that case. 2671 */ 2672 if (error == 1) { 2673 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2674 ieee80211_start_scan(vap, 2675 IEEE80211_SCAN_ACTIVE | 2676 IEEE80211_SCAN_NOPICK | 2677 IEEE80211_SCAN_ONCE, 2678 IEEE80211_SCAN_FOREVER, 2679 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2680 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2681 vap->iv_des_nssid, vap->iv_des_ssid); 2682 goto sw_scan; 2683 } 2684 2685 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2686 __func__, error); 2687 } 2688 } 2689 } 2690 2691 static void 2692 lkpi_ic_scan_end(struct ieee80211com *ic) 2693 { 2694 struct lkpi_hw *lhw; 2695 2696 lhw = ic->ic_softc; 2697 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2698 return; 2699 } 2700 2701 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2702 struct ieee80211_scan_state *ss; 2703 struct ieee80211vap *vap; 2704 struct ieee80211_hw *hw; 2705 struct lkpi_vif *lvif; 2706 struct ieee80211_vif *vif; 2707 2708 ss = ic->ic_scan; 2709 vap = ss->ss_vap; 2710 hw = LHW_TO_HW(lhw); 2711 lvif = VAP_TO_LVIF(vap); 2712 vif = LVIF_TO_VIF(lvif); 2713 2714 lkpi_80211_mo_sw_scan_complete(hw, vif); 2715 2716 /* Send PS to stop buffering if n80211 does not for us? */ 2717 2718 if (vap->iv_state == IEEE80211_S_SCAN) 2719 lkpi_hw_conf_idle(hw, true); 2720 } 2721 } 2722 2723 static void 2724 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2725 unsigned long maxdwell) 2726 { 2727 struct lkpi_hw *lhw; 2728 2729 lhw = ss->ss_ic->ic_softc; 2730 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2731 lhw->ic_scan_curchan(ss, maxdwell); 2732 } 2733 2734 static void 2735 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2736 { 2737 struct lkpi_hw *lhw; 2738 2739 lhw = ss->ss_ic->ic_softc; 2740 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2741 lhw->ic_scan_mindwell(ss); 2742 } 2743 2744 static void 2745 lkpi_ic_set_channel(struct ieee80211com *ic) 2746 { 2747 struct lkpi_hw *lhw; 2748 struct ieee80211_hw *hw; 2749 struct ieee80211_channel *c; 2750 struct linuxkpi_ieee80211_channel *chan; 2751 int error; 2752 2753 lhw = ic->ic_softc; 2754 2755 /* If we do not support (*config)() save us the work. */ 2756 if (lhw->ops->config == NULL) 2757 return; 2758 2759 /* If we have a hw_scan running do not switch channels. */ 2760 if ((lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2761 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) 2762 return; 2763 2764 c = ic->ic_curchan; 2765 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2766 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2767 c, lhw->ops->config); 2768 return; 2769 } 2770 2771 chan = lkpi_find_lkpi80211_chan(lhw, c); 2772 if (chan == NULL) { 2773 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2774 c, chan); 2775 return; 2776 } 2777 2778 /* XXX max power for scanning? */ 2779 IMPROVE(); 2780 2781 hw = LHW_TO_HW(lhw); 2782 cfg80211_chandef_create(&hw->conf.chandef, chan, 2783 NL80211_CHAN_NO_HT); 2784 2785 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2786 if (error != 0 && error != EOPNOTSUPP) { 2787 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2788 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2789 /* XXX should we unroll to the previous chandef? */ 2790 IMPROVE(); 2791 } else { 2792 /* Update radiotap channels as well. */ 2793 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2794 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2795 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2796 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2797 } 2798 2799 /* Currently PS is hard coded off! Not sure it belongs here. */ 2800 IMPROVE(); 2801 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2802 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2803 hw->conf.flags &= ~IEEE80211_CONF_PS; 2804 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2805 if (error != 0 && error != EOPNOTSUPP) 2806 ic_printf(ic, "ERROR: %s: config %#0x returned " 2807 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2808 error); 2809 } 2810 } 2811 2812 static struct ieee80211_node * 2813 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2814 const uint8_t mac[IEEE80211_ADDR_LEN]) 2815 { 2816 struct ieee80211com *ic; 2817 struct lkpi_hw *lhw; 2818 struct ieee80211_node *ni; 2819 struct ieee80211_hw *hw; 2820 struct lkpi_sta *lsta; 2821 2822 ic = vap->iv_ic; 2823 lhw = ic->ic_softc; 2824 2825 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2826 if (lhw->ic_node_alloc == NULL) 2827 return (NULL); 2828 2829 ni = lhw->ic_node_alloc(vap, mac); 2830 if (ni == NULL) 2831 return (NULL); 2832 2833 hw = LHW_TO_HW(lhw); 2834 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2835 if (lsta == NULL) { 2836 if (lhw->ic_node_free != NULL) 2837 lhw->ic_node_free(ni); 2838 return (NULL); 2839 } 2840 2841 return (ni); 2842 } 2843 2844 static int 2845 lkpi_ic_node_init(struct ieee80211_node *ni) 2846 { 2847 struct ieee80211com *ic; 2848 struct lkpi_hw *lhw; 2849 struct lkpi_sta *lsta; 2850 int error; 2851 2852 ic = ni->ni_ic; 2853 lhw = ic->ic_softc; 2854 2855 if (lhw->ic_node_init != NULL) { 2856 error = lhw->ic_node_init(ni); 2857 if (error != 0) 2858 return (error); 2859 } 2860 2861 lsta = ni->ni_drv_data; 2862 2863 /* Now take the reference before linking it to the table. */ 2864 lsta->ni = ieee80211_ref_node(ni); 2865 2866 /* XXX-BZ Sync other state over. */ 2867 IMPROVE(); 2868 2869 return (0); 2870 } 2871 2872 static void 2873 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2874 { 2875 struct ieee80211com *ic; 2876 struct lkpi_hw *lhw; 2877 2878 ic = ni->ni_ic; 2879 lhw = ic->ic_softc; 2880 2881 /* XXX-BZ remove from driver, ... */ 2882 IMPROVE(); 2883 2884 if (lhw->ic_node_cleanup != NULL) 2885 lhw->ic_node_cleanup(ni); 2886 } 2887 2888 static void 2889 lkpi_ic_node_free(struct ieee80211_node *ni) 2890 { 2891 struct ieee80211com *ic; 2892 struct lkpi_hw *lhw; 2893 struct lkpi_sta *lsta; 2894 2895 ic = ni->ni_ic; 2896 lhw = ic->ic_softc; 2897 lsta = ni->ni_drv_data; 2898 if (lsta == NULL) 2899 goto out; 2900 2901 /* XXX-BZ free resources, ... */ 2902 IMPROVE(); 2903 2904 /* Flush mbufq (make sure to release ni refs!). */ 2905 #ifdef __notyet__ 2906 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2907 __func__, lsta, mbufq_len(&lsta->txq))); 2908 #endif 2909 /* Drain taskq. */ 2910 2911 /* Drain sta->txq[] */ 2912 mtx_destroy(&lsta->txq_mtx); 2913 2914 /* Remove lsta if added_to_drv. */ 2915 2916 /* Remove lsta from vif */ 2917 /* Remove ref from lsta node... */ 2918 /* Free lsta. */ 2919 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 2920 2921 out: 2922 if (lhw->ic_node_free != NULL) 2923 lhw->ic_node_free(ni); 2924 } 2925 2926 static int 2927 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2928 const struct ieee80211_bpf_params *params __unused) 2929 { 2930 struct lkpi_sta *lsta; 2931 2932 lsta = ni->ni_drv_data; 2933 2934 /* Queue the packet and enqueue the task to handle it. */ 2935 LKPI_80211_LSTA_LOCK(lsta); 2936 mbufq_enqueue(&lsta->txq, m); 2937 LKPI_80211_LSTA_UNLOCK(lsta); 2938 2939 #ifdef LINUXKPI_DEBUG_80211 2940 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2941 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2942 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2943 mbufq_len(&lsta->txq)); 2944 #endif 2945 2946 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2947 return (0); 2948 } 2949 2950 static void 2951 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2952 { 2953 struct ieee80211_node *ni; 2954 #ifndef LKPI_80211_HW_CRYPTO 2955 struct ieee80211_frame *wh; 2956 #endif 2957 struct ieee80211_key *k; 2958 struct sk_buff *skb; 2959 struct ieee80211com *ic; 2960 struct lkpi_hw *lhw; 2961 struct ieee80211_hw *hw; 2962 struct lkpi_vif *lvif; 2963 struct ieee80211_vif *vif; 2964 struct ieee80211_channel *c; 2965 struct ieee80211_tx_control control; 2966 struct ieee80211_tx_info *info; 2967 struct ieee80211_sta *sta; 2968 struct ieee80211_hdr *hdr; 2969 void *buf; 2970 uint8_t ac, tid; 2971 2972 M_ASSERTPKTHDR(m); 2973 #ifdef LINUXKPI_DEBUG_80211 2974 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2975 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2976 #endif 2977 2978 ni = lsta->ni; 2979 k = NULL; 2980 #ifndef LKPI_80211_HW_CRYPTO 2981 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2982 wh = mtod(m, struct ieee80211_frame *); 2983 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2984 /* Retrieve key for TX && do software encryption. */ 2985 k = ieee80211_crypto_encap(ni, m); 2986 if (k == NULL) { 2987 ieee80211_free_node(ni); 2988 m_freem(m); 2989 return; 2990 } 2991 } 2992 #endif 2993 2994 ic = ni->ni_ic; 2995 lhw = ic->ic_softc; 2996 hw = LHW_TO_HW(lhw); 2997 c = ni->ni_chan; 2998 2999 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3000 struct lkpi_radiotap_tx_hdr *rtap; 3001 3002 rtap = &lhw->rtap_tx; 3003 rtap->wt_flags = 0; 3004 if (k != NULL) 3005 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3006 if (m->m_flags & M_FRAG) 3007 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3008 IMPROVE(); 3009 rtap->wt_rate = 0; 3010 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3011 rtap->wt_chan_freq = htole16(c->ic_freq); 3012 rtap->wt_chan_flags = htole16(c->ic_flags); 3013 } 3014 3015 ieee80211_radiotap_tx(ni->ni_vap, m); 3016 } 3017 3018 /* 3019 * net80211 should handle hw->extra_tx_headroom. 3020 * Though for as long as we are copying we don't mind. 3021 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3022 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3023 */ 3024 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3025 if (skb == NULL) { 3026 printf("XXX ERROR %s: skb alloc failed\n", __func__); 3027 ieee80211_free_node(ni); 3028 m_freem(m); 3029 return; 3030 } 3031 skb_reserve(skb, hw->extra_tx_headroom); 3032 3033 /* XXX-BZ we need a SKB version understanding mbuf. */ 3034 /* Save the mbuf for ieee80211_tx_complete(). */ 3035 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3036 skb->m = m; 3037 #if 0 3038 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3039 #else 3040 buf = skb_put(skb, m->m_pkthdr.len); 3041 m_copydata(m, 0, m->m_pkthdr.len, buf); 3042 #endif 3043 /* Save the ni. */ 3044 m->m_pkthdr.PH_loc.ptr = ni; 3045 3046 lvif = VAP_TO_LVIF(ni->ni_vap); 3047 vif = LVIF_TO_VIF(lvif); 3048 3049 hdr = (void *)skb->data; 3050 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3051 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3052 skb->priority = 0; 3053 ac = IEEE80211_AC_BE; 3054 } else { 3055 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3056 ac = tid_to_mac80211_ac[tid & 7]; 3057 } 3058 skb_set_queue_mapping(skb, ac); 3059 3060 info = IEEE80211_SKB_CB(skb); 3061 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3062 /* Slight delay; probably only happens on scanning so fine? */ 3063 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3064 c = ic->ic_curchan; 3065 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3066 info->hw_queue = vif->hw_queue[ac]; 3067 if (m->m_flags & M_EAPOL) 3068 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3069 info->control.vif = vif; 3070 /* XXX-BZ info->control.rates */ 3071 3072 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3073 if (lsta != NULL) { 3074 sta = LSTA_TO_STA(lsta); 3075 #ifdef LKPI_80211_HW_CRYPTO 3076 info->control.hw_key = lsta->kc; 3077 #endif 3078 } else { 3079 sta = NULL; 3080 } 3081 3082 IMPROVE(); 3083 3084 if (sta != NULL) { 3085 struct lkpi_txq *ltxq; 3086 3087 ltxq = NULL; 3088 if (!ieee80211_is_data_present(hdr->frame_control)) { 3089 if (vif->type == NL80211_IFTYPE_STATION && 3090 lsta->added_to_drv && 3091 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3092 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3093 } else if (lsta->added_to_drv && 3094 sta->txq[skb->priority] != NULL) { 3095 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3096 } 3097 if (ltxq == NULL) 3098 goto ops_tx; 3099 3100 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3101 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3102 3103 skb_queue_tail(<xq->skbq, skb); 3104 #ifdef LINUXKPI_DEBUG_80211 3105 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3106 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3107 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3108 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3109 __func__, __LINE__, 3110 curthread->td_tid, (unsigned int)ticks, 3111 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3112 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3113 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3114 #endif 3115 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3116 return; 3117 } 3118 3119 ops_tx: 3120 #ifdef LINUXKPI_DEBUG_80211 3121 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3122 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3123 "TX ac %d prio %u qmap %u\n", 3124 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3125 skb, ac, skb->priority, skb->qmap); 3126 #endif 3127 memset(&control, 0, sizeof(control)); 3128 control.sta = sta; 3129 3130 lkpi_80211_mo_tx(hw, &control, skb); 3131 return; 3132 } 3133 3134 static void 3135 lkpi_80211_txq_task(void *ctx, int pending) 3136 { 3137 struct lkpi_sta *lsta; 3138 struct mbufq mq; 3139 struct mbuf *m; 3140 3141 lsta = ctx; 3142 3143 #ifdef LINUXKPI_DEBUG_80211 3144 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3145 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3146 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3147 pending, mbufq_len(&lsta->txq)); 3148 #endif 3149 3150 mbufq_init(&mq, IFQ_MAXLEN); 3151 3152 LKPI_80211_LSTA_LOCK(lsta); 3153 mbufq_concat(&mq, &lsta->txq); 3154 LKPI_80211_LSTA_UNLOCK(lsta); 3155 3156 m = mbufq_dequeue(&mq); 3157 while (m != NULL) { 3158 lkpi_80211_txq_tx_one(lsta, m); 3159 m = mbufq_dequeue(&mq); 3160 } 3161 } 3162 3163 static int 3164 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3165 { 3166 3167 /* XXX TODO */ 3168 IMPROVE(); 3169 3170 /* Quick and dirty cheating hack. */ 3171 struct ieee80211_node *ni; 3172 3173 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3174 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3175 } 3176 3177 static void 3178 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3179 int *n, struct ieee80211_channel *c) 3180 { 3181 struct lkpi_hw *lhw; 3182 struct ieee80211_hw *hw; 3183 struct linuxkpi_ieee80211_channel *channels; 3184 uint8_t bands[IEEE80211_MODE_BYTES]; 3185 int chan_flags, error, i, nchans; 3186 3187 /* Channels */ 3188 lhw = ic->ic_softc; 3189 hw = LHW_TO_HW(lhw); 3190 3191 /* NL80211_BAND_2GHZ */ 3192 nchans = 0; 3193 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3194 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3195 if (nchans > 0) { 3196 memset(bands, 0, sizeof(bands)); 3197 chan_flags = 0; 3198 setbit(bands, IEEE80211_MODE_11B); 3199 /* XXX-BZ unclear how to check for 11g. */ 3200 setbit(bands, IEEE80211_MODE_11G); 3201 #ifdef __notyet__ 3202 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3203 setbit(bands, IEEE80211_MODE_11NG); 3204 chan_flags |= NET80211_CBW_FLAG_HT40; 3205 } 3206 #endif 3207 3208 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3209 for (i = 0; i < nchans && *n < maxchan; i++) { 3210 uint32_t nflags = 0; 3211 int cflags = chan_flags; 3212 3213 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3214 printf("%s: %s: Skipping disabled chan " 3215 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3216 channels[i].hw_value, 3217 channels[i].center_freq, channels[i].flags); 3218 continue; 3219 } 3220 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3221 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3222 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3223 nflags |= IEEE80211_CHAN_DFS; 3224 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3225 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3226 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3227 cflags &= ~NET80211_CBW_FLAG_VHT80; 3228 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3229 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3230 cflags &= ~NET80211_CBW_FLAG_HT40; 3231 3232 error = ieee80211_add_channel_cbw(c, maxchan, n, 3233 channels[i].hw_value, channels[i].center_freq, 3234 channels[i].max_power, 3235 nflags, bands, chan_flags); 3236 /* net80211::ENOBUFS: *n >= maxchans */ 3237 if (error != 0 && error != ENOBUFS) 3238 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3239 "returned error %d\n", ic->ic_name, 3240 __func__, channels[i].hw_value, 3241 channels[i].center_freq, channels[i].flags, 3242 nflags, chan_flags, cflags, error); 3243 if (error != 0) 3244 break; 3245 } 3246 } 3247 3248 /* NL80211_BAND_5GHZ */ 3249 nchans = 0; 3250 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3251 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3252 if (nchans > 0) { 3253 memset(bands, 0, sizeof(bands)); 3254 chan_flags = 0; 3255 setbit(bands, IEEE80211_MODE_11A); 3256 #ifdef __not_yet__ 3257 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3258 setbit(bands, IEEE80211_MODE_11NA); 3259 chan_flags |= NET80211_CBW_FLAG_HT40; 3260 } 3261 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3262 3263 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3264 ic->ic_vhtcaps = 3265 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3266 3267 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3268 chan_flags |= NET80211_CBW_FLAG_VHT80; 3269 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3270 ic->ic_vhtcaps)) 3271 chan_flags |= NET80211_CBW_FLAG_VHT160; 3272 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3273 ic->ic_vhtcaps)) 3274 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3275 } 3276 #endif 3277 3278 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3279 for (i = 0; i < nchans && *n < maxchan; i++) { 3280 uint32_t nflags = 0; 3281 int cflags = chan_flags; 3282 3283 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3284 printf("%s: %s: Skipping disabled chan " 3285 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3286 channels[i].hw_value, 3287 channels[i].center_freq, channels[i].flags); 3288 continue; 3289 } 3290 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3291 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3292 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3293 nflags |= IEEE80211_CHAN_DFS; 3294 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3295 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3296 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3297 cflags &= ~NET80211_CBW_FLAG_VHT80; 3298 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3299 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3300 cflags &= ~NET80211_CBW_FLAG_HT40; 3301 3302 error = ieee80211_add_channel_cbw(c, maxchan, n, 3303 channels[i].hw_value, channels[i].center_freq, 3304 channels[i].max_power, 3305 nflags, bands, chan_flags); 3306 /* net80211::ENOBUFS: *n >= maxchans */ 3307 if (error != 0 && error != ENOBUFS) 3308 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3309 "returned error %d\n", ic->ic_name, 3310 __func__, channels[i].hw_value, 3311 channels[i].center_freq, channels[i].flags, 3312 nflags, chan_flags, cflags, error); 3313 if (error != 0) 3314 break; 3315 } 3316 } 3317 } 3318 3319 static void * 3320 lkpi_ieee80211_ifalloc(void) 3321 { 3322 struct ieee80211com *ic; 3323 3324 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3325 if (ic == NULL) 3326 return (NULL); 3327 3328 /* Setting these happens later when we have device information. */ 3329 ic->ic_softc = NULL; 3330 ic->ic_name = "linuxkpi"; 3331 3332 return (ic); 3333 } 3334 3335 struct ieee80211_hw * 3336 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3337 { 3338 struct ieee80211_hw *hw; 3339 struct lkpi_hw *lhw; 3340 struct wiphy *wiphy; 3341 3342 /* Get us and the driver data also allocated. */ 3343 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3344 if (wiphy == NULL) 3345 return (NULL); 3346 3347 lhw = wiphy_priv(wiphy); 3348 lhw->ops = ops; 3349 3350 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3351 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3352 TAILQ_INIT(&lhw->lvif_head); 3353 3354 /* 3355 * XXX-BZ TODO make sure there is a "_null" function to all ops 3356 * not initialized. 3357 */ 3358 hw = LHW_TO_HW(lhw); 3359 hw->wiphy = wiphy; 3360 hw->conf.flags |= IEEE80211_CONF_IDLE; 3361 hw->priv = (void *)(lhw + 1); 3362 3363 /* BSD Specific. */ 3364 lhw->ic = lkpi_ieee80211_ifalloc(); 3365 if (lhw->ic == NULL) { 3366 ieee80211_free_hw(hw); 3367 return (NULL); 3368 } 3369 3370 IMPROVE(); 3371 3372 return (hw); 3373 } 3374 3375 void 3376 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3377 { 3378 struct lkpi_hw *lhw; 3379 3380 lhw = HW_TO_LHW(hw); 3381 free(lhw->ic, M_LKPI80211); 3382 lhw->ic = NULL; 3383 3384 /* Cleanup more of lhw here or in wiphy_free()? */ 3385 sx_destroy(&lhw->lvif_sx); 3386 mtx_destroy(&lhw->mtx); 3387 IMPROVE(); 3388 } 3389 3390 void 3391 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3392 { 3393 struct lkpi_hw *lhw; 3394 struct ieee80211com *ic; 3395 3396 lhw = HW_TO_LHW(hw); 3397 ic = lhw->ic; 3398 3399 /* Now set a proper name before ieee80211_ifattach(). */ 3400 ic->ic_softc = lhw; 3401 ic->ic_name = name; 3402 3403 /* XXX-BZ do we also need to set wiphy name? */ 3404 } 3405 3406 struct ieee80211_hw * 3407 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3408 { 3409 struct lkpi_hw *lhw; 3410 3411 lhw = wiphy_priv(wiphy); 3412 return (LHW_TO_HW(lhw)); 3413 } 3414 3415 static void 3416 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3417 { 3418 struct ieee80211com *ic; 3419 3420 ic = lhw->ic; 3421 ieee80211_radiotap_attach(ic, 3422 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3423 LKPI_RTAP_TX_FLAGS_PRESENT, 3424 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3425 LKPI_RTAP_RX_FLAGS_PRESENT); 3426 } 3427 3428 int 3429 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3430 { 3431 struct ieee80211com *ic; 3432 struct lkpi_hw *lhw; 3433 int band, i; 3434 3435 lhw = HW_TO_LHW(hw); 3436 ic = lhw->ic; 3437 3438 /* We do it this late as wiphy->dev should be set for the name. */ 3439 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3440 if (lhw->workq == NULL) 3441 return (-EAGAIN); 3442 3443 /* XXX-BZ figure this out how they count his... */ 3444 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3445 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3446 hw->wiphy->perm_addr); 3447 } else if (hw->wiphy->n_addresses > 0) { 3448 /* We take the first one. */ 3449 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3450 hw->wiphy->addresses[0].addr); 3451 } else { 3452 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3453 } 3454 3455 #ifdef __not_yet__ 3456 /* See comment in lkpi_80211_txq_tx_one(). */ 3457 ic->ic_headroom = hw->extra_tx_headroom; 3458 #endif 3459 3460 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3461 ic->ic_opmode = IEEE80211_M_STA; 3462 3463 /* Set device capabilities. */ 3464 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3465 ic->ic_caps = 3466 IEEE80211_C_STA | 3467 IEEE80211_C_MONITOR | 3468 IEEE80211_C_WPA | /* WPA/RSN */ 3469 IEEE80211_C_WME | 3470 #if 0 3471 IEEE80211_C_PMGT | 3472 #endif 3473 IEEE80211_C_SHSLOT | /* short slot time supported */ 3474 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3475 ; 3476 #if 0 3477 /* Scanning is a different kind of beast to re-work. */ 3478 ic->ic_caps |= IEEE80211_C_BGSCAN; 3479 #endif 3480 if (lhw->ops->hw_scan) { 3481 /* 3482 * Advertise full-offload scanning. 3483 * 3484 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3485 * we essentially disable hw_scan for all drivers not setting 3486 * the flag. 3487 */ 3488 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3489 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3490 } 3491 3492 #ifdef __notyet__ 3493 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3494 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3495 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3496 | IEEE80211_HTCAP_MAXAMSDU_3839 3497 /* max A-MSDU length */ 3498 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3499 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3500 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3501 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3502 #endif 3503 3504 /* 3505 * The wiphy variables report bitmasks of avail antennas. 3506 * (*get_antenna) get the current bitmask sets which can be 3507 * altered by (*set_antenna) for some drivers. 3508 * XXX-BZ will the count alone do us much good long-term in net80211? 3509 */ 3510 if (hw->wiphy->available_antennas_rx || 3511 hw->wiphy->available_antennas_tx) { 3512 uint32_t rxs, txs; 3513 3514 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3515 ic->ic_rxstream = bitcount32(rxs); 3516 ic->ic_txstream = bitcount32(txs); 3517 } 3518 } 3519 3520 ic->ic_cryptocaps = 0; 3521 #ifdef LKPI_80211_HW_CRYPTO 3522 if (hw->wiphy->n_cipher_suites > 0) { 3523 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3524 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3525 hw->wiphy->cipher_suites[i]); 3526 } 3527 #endif 3528 3529 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3530 ic->ic_channels); 3531 3532 ieee80211_ifattach(ic); 3533 3534 ic->ic_update_mcast = lkpi_ic_update_mcast; 3535 ic->ic_update_promisc = lkpi_ic_update_promisc; 3536 ic->ic_update_chw = lkpi_ic_update_chw; 3537 ic->ic_parent = lkpi_ic_parent; 3538 ic->ic_scan_start = lkpi_ic_scan_start; 3539 ic->ic_scan_end = lkpi_ic_scan_end; 3540 ic->ic_set_channel = lkpi_ic_set_channel; 3541 ic->ic_transmit = lkpi_ic_transmit; 3542 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3543 ic->ic_vap_create = lkpi_ic_vap_create; 3544 ic->ic_vap_delete = lkpi_ic_vap_delete; 3545 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3546 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3547 3548 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3549 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3550 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3551 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3552 3553 lhw->ic_node_alloc = ic->ic_node_alloc; 3554 ic->ic_node_alloc = lkpi_ic_node_alloc; 3555 lhw->ic_node_init = ic->ic_node_init; 3556 ic->ic_node_init = lkpi_ic_node_init; 3557 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3558 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3559 lhw->ic_node_free = ic->ic_node_free; 3560 ic->ic_node_free = lkpi_ic_node_free; 3561 3562 lkpi_radiotap_attach(lhw); 3563 3564 /* 3565 * Assign the first possible channel for now; seems Realtek drivers 3566 * expect one. 3567 * Also remember the amount of bands we support and the most rates 3568 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3569 */ 3570 lhw->supbands = lhw->max_rates = 0; 3571 for (band = 0; band < NUM_NL80211_BANDS && 3572 hw->conf.chandef.chan == NULL; band++) { 3573 struct ieee80211_supported_band *supband; 3574 struct linuxkpi_ieee80211_channel *channels; 3575 3576 supband = hw->wiphy->bands[band]; 3577 if (supband == NULL || supband->n_channels == 0) 3578 continue; 3579 3580 lhw->supbands++; 3581 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3582 3583 channels = supband->channels; 3584 for (i = 0; i < supband->n_channels; i++) { 3585 3586 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3587 continue; 3588 3589 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3590 NL80211_CHAN_NO_HT); 3591 break; 3592 } 3593 } 3594 3595 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3596 3597 /* Make sure we do not support more than net80211 is willing to take. */ 3598 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3599 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3600 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3601 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3602 } 3603 3604 /* 3605 * The maximum supported bitrates on any band + size for 3606 * DSSS Parameter Set give our per-band IE size. 3607 * XXX-BZ FIXME add HT VHT ... later 3608 * SSID is the responsibility of the driver and goes on the side. 3609 * The user specified bits coming from the vap go into the 3610 * "common ies" fields. 3611 */ 3612 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3613 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3614 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3615 /* 3616 * net80211 does not seem to support the DSSS Parameter Set but some of 3617 * the drivers insert it so calculate the extra fixed space in. 3618 */ 3619 lhw->scan_ie_len += 2 + 1; 3620 3621 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3622 if (hw->wiphy->max_scan_ie_len > 0) 3623 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3624 3625 if (bootverbose) 3626 ieee80211_announce(ic); 3627 3628 return (0); 3629 } 3630 3631 void 3632 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3633 { 3634 struct lkpi_hw *lhw; 3635 struct ieee80211com *ic; 3636 3637 lhw = HW_TO_LHW(hw); 3638 ic = lhw->ic; 3639 ieee80211_ifdetach(ic); 3640 } 3641 3642 void 3643 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3644 enum ieee80211_iface_iter flags, 3645 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3646 void *arg) 3647 { 3648 struct lkpi_hw *lhw; 3649 struct lkpi_vif *lvif; 3650 struct ieee80211_vif *vif; 3651 bool active, atomic, nin_drv; 3652 3653 lhw = HW_TO_LHW(hw); 3654 3655 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3656 IEEE80211_IFACE_ITER_RESUME_ALL| 3657 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3658 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3659 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3660 __func__, flags); 3661 } 3662 3663 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3664 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3665 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3666 3667 if (atomic) 3668 LKPI_80211_LHW_LVIF_LOCK(lhw); 3669 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3670 struct ieee80211vap *vap; 3671 3672 vif = LVIF_TO_VIF(lvif); 3673 3674 /* 3675 * If we want "active" interfaces, we need to distinguish on 3676 * whether the driver knows about them or not to be able to 3677 * handle the "resume" case correctly. Skip the ones the 3678 * driver does not know about. 3679 */ 3680 if (active && !lvif->added_to_drv && 3681 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3682 continue; 3683 3684 /* 3685 * If we shall skip interfaces not added to the driver do so 3686 * if we haven't yet. 3687 */ 3688 if (nin_drv && !lvif->added_to_drv) 3689 continue; 3690 3691 /* 3692 * Run the iterator function if we are either not asking 3693 * asking for active only or if the VAP is "running". 3694 */ 3695 /* XXX-BZ probably should have state in the lvif as well. */ 3696 vap = LVIF_TO_VAP(lvif); 3697 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3698 iterfunc(arg, vif->addr, vif); 3699 } 3700 if (atomic) 3701 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3702 } 3703 3704 void 3705 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3706 struct ieee80211_vif *vif, 3707 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3708 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3709 void *arg) 3710 { 3711 3712 UNIMPLEMENTED; 3713 } 3714 3715 void 3716 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3717 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3718 void *), 3719 void *arg) 3720 { 3721 3722 UNIMPLEMENTED; 3723 } 3724 3725 void 3726 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3727 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3728 { 3729 struct lkpi_hw *lhw; 3730 struct lkpi_vif *lvif; 3731 struct lkpi_sta *lsta; 3732 struct ieee80211_sta *sta; 3733 3734 KASSERT(hw != NULL && iterfunc != NULL, 3735 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3736 3737 lhw = HW_TO_LHW(hw); 3738 3739 LKPI_80211_LHW_LVIF_LOCK(lhw); 3740 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3741 3742 LKPI_80211_LVIF_LOCK(lvif); 3743 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3744 if (!lsta->added_to_drv) 3745 continue; 3746 sta = LSTA_TO_STA(lsta); 3747 iterfunc(arg, sta); 3748 } 3749 LKPI_80211_LVIF_UNLOCK(lvif); 3750 } 3751 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3752 } 3753 3754 int 3755 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3756 struct linuxkpi_ieee80211_regdomain *regd) 3757 { 3758 struct lkpi_hw *lhw; 3759 struct ieee80211com *ic; 3760 struct ieee80211_regdomain *rd; 3761 3762 lhw = wiphy_priv(wiphy); 3763 ic = lhw->ic; 3764 3765 rd = &ic->ic_regdomain; 3766 if (rd->isocc[0] == '\0') { 3767 rd->isocc[0] = regd->alpha2[0]; 3768 rd->isocc[1] = regd->alpha2[1]; 3769 } 3770 3771 TODO(); 3772 /* XXX-BZ finish the rest. */ 3773 3774 return (0); 3775 } 3776 3777 void 3778 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3779 struct cfg80211_scan_info *info) 3780 { 3781 struct lkpi_hw *lhw; 3782 struct ieee80211com *ic; 3783 struct ieee80211_scan_state *ss; 3784 3785 lhw = wiphy_priv(hw->wiphy); 3786 ic = lhw->ic; 3787 ss = ic->ic_scan; 3788 3789 ieee80211_scan_done(ss->ss_vap); 3790 3791 LKPI_80211_LHW_LOCK(lhw); 3792 free(lhw->hw_req, M_LKPI80211); 3793 lhw->hw_req = NULL; 3794 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3795 wakeup(lhw); 3796 LKPI_80211_LHW_UNLOCK(lhw); 3797 3798 return; 3799 } 3800 3801 void 3802 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3803 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3804 { 3805 struct epoch_tracker et; 3806 struct lkpi_hw *lhw; 3807 struct ieee80211com *ic; 3808 struct mbuf *m; 3809 struct skb_shared_info *shinfo; 3810 struct ieee80211_rx_status *rx_status; 3811 struct ieee80211_rx_stats rx_stats; 3812 struct ieee80211_node *ni; 3813 struct ieee80211vap *vap; 3814 struct ieee80211_hdr *hdr; 3815 struct lkpi_sta *lsta; 3816 int i, offset, ok; 3817 int8_t rssi; 3818 bool is_beacon; 3819 3820 if (skb->len < 2) { 3821 /* Need 80211 stats here. */ 3822 IMPROVE(); 3823 goto err; 3824 } 3825 3826 /* 3827 * For now do the data copy; we can later improve things. Might even 3828 * have an mbuf backing the skb data then? 3829 */ 3830 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3831 if (m == NULL) 3832 goto err; 3833 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3834 3835 shinfo = skb_shinfo(skb); 3836 offset = m->m_len; 3837 for (i = 0; i < shinfo->nr_frags; i++) { 3838 m_copyback(m, offset, shinfo->frags[i].size, 3839 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3840 shinfo->frags[i].offset); 3841 offset += shinfo->frags[i].size; 3842 } 3843 3844 rx_status = IEEE80211_SKB_RXCB(skb); 3845 3846 hdr = (void *)skb->data; 3847 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3848 3849 #ifdef LINUXKPI_DEBUG_80211 3850 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3851 goto no_trace_beacons; 3852 3853 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3854 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3855 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3856 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3857 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3858 shinfo, shinfo->nr_frags, 3859 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3860 3861 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3862 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3863 3864 /* Implement a dump_rxcb() !!! */ 3865 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3866 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3867 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3868 __func__, 3869 (uintmax_t)rx_status->boottime_ns, 3870 (uintmax_t)rx_status->mactime, 3871 rx_status->device_timestamp, 3872 rx_status->flag, 3873 rx_status->freq, 3874 rx_status->bw, 3875 rx_status->encoding, 3876 rx_status->ampdu_reference, 3877 rx_status->band, 3878 rx_status->chains, 3879 rx_status->chain_signal[0], 3880 rx_status->chain_signal[1], 3881 rx_status->chain_signal[2], 3882 rx_status->chain_signal[3], 3883 rx_status->signal, 3884 rx_status->enc_flags, 3885 rx_status->he_dcm, 3886 rx_status->he_gi, 3887 rx_status->he_ru, 3888 rx_status->zero_length_psdu_type, 3889 rx_status->nss, 3890 rx_status->rate_idx); 3891 no_trace_beacons: 3892 #endif 3893 3894 memset(&rx_stats, 0, sizeof(rx_stats)); 3895 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3896 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3897 rx_stats.c_nf = -96; 3898 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3899 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3900 rssi = rx_status->signal; 3901 else 3902 rssi = rx_stats.c_nf; 3903 /* 3904 * net80211 signal strength data are in .5 dBm units relative to 3905 * the current noise floor (see comment in ieee80211_node.h). 3906 */ 3907 rssi -= rx_stats.c_nf; 3908 rx_stats.c_rssi = rssi * 2; 3909 rx_stats.r_flags |= IEEE80211_R_BAND; 3910 rx_stats.c_band = 3911 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3912 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3913 rx_stats.c_freq = rx_status->freq; 3914 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3915 3916 /* XXX (*sta_statistics)() to get to some of that? */ 3917 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3918 3919 lhw = HW_TO_LHW(hw); 3920 ic = lhw->ic; 3921 3922 ok = ieee80211_add_rx_params(m, &rx_stats); 3923 if (ok == 0) { 3924 m_freem(m); 3925 counter_u64_add(ic->ic_ierrors, 1); 3926 goto err; 3927 } 3928 3929 if (sta != NULL) { 3930 lsta = STA_TO_LSTA(sta); 3931 ni = ieee80211_ref_node(lsta->ni); 3932 } else { 3933 struct ieee80211_frame_min *wh; 3934 3935 wh = mtod(m, struct ieee80211_frame_min *); 3936 ni = ieee80211_find_rxnode(ic, wh); 3937 if (ni != NULL) 3938 lsta = ni->ni_drv_data; 3939 } 3940 3941 if (ni != NULL) 3942 vap = ni->ni_vap; 3943 else 3944 /* 3945 * XXX-BZ can we improve this by looking at the frame hdr 3946 * or other meta-data passed up? 3947 */ 3948 vap = TAILQ_FIRST(&ic->ic_vaps); 3949 3950 #ifdef LINUXKPI_DEBUG_80211 3951 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3952 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3953 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3954 ni, vap, is_beacon ? " beacon" : ""); 3955 #endif 3956 3957 if (ni != NULL && vap != NULL && is_beacon && 3958 rx_status->device_timestamp > 0 && 3959 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3960 struct lkpi_vif *lvif; 3961 struct ieee80211_vif *vif; 3962 struct ieee80211_frame *wh; 3963 3964 wh = mtod(m, struct ieee80211_frame *); 3965 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3966 goto skip_device_ts; 3967 3968 lvif = VAP_TO_LVIF(vap); 3969 vif = LVIF_TO_VIF(lvif); 3970 3971 IMPROVE("TIMING_BEACON_ONLY?"); 3972 /* mac80211 specific (not net80211) so keep it here. */ 3973 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3974 /* 3975 * net80211 should take care of the other information (sync_tsf, 3976 * sync_dtim_count) as otherwise we need to parse the beacon. 3977 */ 3978 } 3979 skip_device_ts: 3980 3981 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3982 ieee80211_radiotap_active_vap(vap)) { 3983 struct lkpi_radiotap_rx_hdr *rtap; 3984 3985 rtap = &lhw->rtap_rx; 3986 rtap->wr_tsft = rx_status->device_timestamp; 3987 rtap->wr_flags = 0; 3988 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3989 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3990 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3991 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3992 #if 0 /* .. or it does not given we strip it below. */ 3993 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3994 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3995 #endif 3996 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3997 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3998 rtap->wr_rate = 0; 3999 IMPROVE(); 4000 /* XXX TODO status->encoding / rate_index / bw */ 4001 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4002 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4003 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4004 rtap->wr_dbm_antsignal = rssi; 4005 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4006 } 4007 4008 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4009 m_adj(m, -IEEE80211_CRC_LEN); 4010 4011 NET_EPOCH_ENTER(et); 4012 if (ni != NULL) { 4013 ok = ieee80211_input_mimo(ni, m); 4014 ieee80211_free_node(ni); 4015 if (ok < 0) 4016 m_freem(m); 4017 } else { 4018 ok = ieee80211_input_mimo_all(ic, m); 4019 /* mbuf got consumed. */ 4020 } 4021 NET_EPOCH_EXIT(et); 4022 4023 #ifdef LINUXKPI_DEBUG_80211 4024 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4025 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4026 #endif 4027 4028 IMPROVE(); 4029 4030 err: 4031 /* The skb is ours so we can free it :-) */ 4032 kfree_skb(skb); 4033 } 4034 4035 uint8_t 4036 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4037 { 4038 const struct ieee80211_frame *wh; 4039 uint8_t tid; 4040 4041 /* Linux seems to assume this is a QOS-Data-Frame */ 4042 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4043 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4044 hdr->frame_control)); 4045 4046 wh = (const struct ieee80211_frame *)hdr; 4047 tid = ieee80211_gettid(wh); 4048 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4049 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4050 4051 return (tid); 4052 } 4053 4054 struct wiphy * 4055 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4056 { 4057 struct lkpi_wiphy *lwiphy; 4058 4059 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4060 if (lwiphy == NULL) 4061 return (NULL); 4062 lwiphy->ops = ops; 4063 4064 /* XXX TODO */ 4065 return (LWIPHY_TO_WIPHY(lwiphy)); 4066 } 4067 4068 void 4069 linuxkpi_wiphy_free(struct wiphy *wiphy) 4070 { 4071 struct lkpi_wiphy *lwiphy; 4072 4073 if (wiphy == NULL) 4074 return; 4075 4076 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4077 kfree(lwiphy); 4078 } 4079 4080 uint32_t 4081 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4082 enum nl80211_band band) 4083 { 4084 4085 switch (band) { 4086 case NL80211_BAND_2GHZ: 4087 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4088 break; 4089 case NL80211_BAND_5GHZ: 4090 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4091 break; 4092 default: 4093 /* XXX abort, retry, error, panic? */ 4094 break; 4095 } 4096 4097 return (0); 4098 } 4099 4100 uint32_t 4101 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4102 { 4103 4104 return (ieee80211_mhz2ieee(freq, 0)); 4105 } 4106 4107 static struct lkpi_sta * 4108 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4109 { 4110 struct lkpi_sta *lsta, *temp; 4111 4112 LKPI_80211_LVIF_LOCK(lvif); 4113 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4114 if (lsta->ni == ni) { 4115 LKPI_80211_LVIF_UNLOCK(lvif); 4116 return (lsta); 4117 } 4118 } 4119 LKPI_80211_LVIF_UNLOCK(lvif); 4120 4121 return (NULL); 4122 } 4123 4124 struct ieee80211_sta * 4125 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4126 { 4127 struct lkpi_vif *lvif; 4128 struct lkpi_sta *lsta, *temp; 4129 struct ieee80211_sta *sta; 4130 4131 lvif = VIF_TO_LVIF(vif); 4132 4133 LKPI_80211_LVIF_LOCK(lvif); 4134 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4135 sta = LSTA_TO_STA(lsta); 4136 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4137 LKPI_80211_LVIF_UNLOCK(lvif); 4138 return (sta); 4139 } 4140 } 4141 LKPI_80211_LVIF_UNLOCK(lvif); 4142 return (NULL); 4143 } 4144 4145 struct ieee80211_sta * 4146 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4147 const uint8_t *addr, const uint8_t *ourvifaddr) 4148 { 4149 struct lkpi_hw *lhw; 4150 struct lkpi_vif *lvif; 4151 struct lkpi_sta *lsta; 4152 struct ieee80211_vif *vif; 4153 struct ieee80211_sta *sta; 4154 4155 lhw = wiphy_priv(hw->wiphy); 4156 sta = NULL; 4157 4158 LKPI_80211_LHW_LVIF_LOCK(lhw); 4159 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4160 4161 /* XXX-BZ check our address from the vif. */ 4162 4163 vif = LVIF_TO_VIF(lvif); 4164 if (ourvifaddr != NULL && 4165 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4166 continue; 4167 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4168 if (sta != NULL) 4169 break; 4170 } 4171 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4172 4173 if (sta != NULL) { 4174 lsta = STA_TO_LSTA(sta); 4175 if (!lsta->added_to_drv) 4176 return (NULL); 4177 } 4178 4179 return (sta); 4180 } 4181 4182 struct sk_buff * 4183 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4184 struct ieee80211_txq *txq) 4185 { 4186 struct lkpi_txq *ltxq; 4187 struct sk_buff *skb; 4188 4189 ltxq = TXQ_TO_LTXQ(txq); 4190 ltxq->seen_dequeue = true; 4191 4192 skb = skb_dequeue(<xq->skbq); 4193 4194 return (skb); 4195 } 4196 4197 void 4198 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4199 unsigned long *frame_cnt, unsigned long *byte_cnt) 4200 { 4201 struct lkpi_txq *ltxq; 4202 struct sk_buff *skb; 4203 unsigned long fc, bc; 4204 4205 ltxq = TXQ_TO_LTXQ(txq); 4206 4207 fc = bc = 0; 4208 skb_queue_walk(<xq->skbq, skb) { 4209 fc++; 4210 bc += skb->len; 4211 } 4212 if (frame_cnt) 4213 *frame_cnt = fc; 4214 if (byte_cnt) 4215 *byte_cnt = bc; 4216 4217 /* Validate that this is doing the correct thing. */ 4218 /* Should we keep track on en/dequeue? */ 4219 IMPROVE(); 4220 } 4221 4222 /* 4223 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4224 * The latter tries to derive the success status from the info flags 4225 * passed back from the driver. rawx_mit() saves the ni on the m and the 4226 * m on the skb for us to be able to give feedback to net80211. 4227 */ 4228 void 4229 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4230 int status) 4231 { 4232 struct ieee80211_node *ni; 4233 struct mbuf *m; 4234 4235 m = skb->m; 4236 skb->m = NULL; 4237 4238 if (m != NULL) { 4239 ni = m->m_pkthdr.PH_loc.ptr; 4240 /* Status: 0 is ok, != 0 is error. */ 4241 ieee80211_tx_complete(ni, m, status); 4242 /* ni & mbuf were consumed. */ 4243 } 4244 4245 kfree_skb(skb); 4246 } 4247 4248 void 4249 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4250 { 4251 struct ieee80211_tx_info *info; 4252 struct ieee80211_ratectl_tx_status txs; 4253 struct ieee80211_node *ni; 4254 int status; 4255 4256 info = IEEE80211_SKB_CB(skb); 4257 4258 if (skb->m != NULL) { 4259 struct mbuf *m; 4260 4261 m = skb->m; 4262 ni = m->m_pkthdr.PH_loc.ptr; 4263 memset(&txs, 0, sizeof(txs)); 4264 } else { 4265 ni = NULL; 4266 } 4267 4268 if (info->flags & IEEE80211_TX_STAT_ACK) { 4269 status = 0; /* No error. */ 4270 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4271 } else { 4272 status = 1; 4273 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4274 } 4275 4276 if (ni != NULL) { 4277 int ridx __unused; 4278 #ifdef LINUXKPI_DEBUG_80211 4279 int old_rate; 4280 4281 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4282 #endif 4283 txs.pktlen = skb->len; 4284 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4285 if (info->status.rates[0].count > 1) { 4286 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4287 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4288 } 4289 #if 0 /* Unused in net80211 currently. */ 4290 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4291 txs.final_rate = info->status.rates[0].idx; 4292 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4293 #endif 4294 if (info->status.is_valid_ack_signal) { 4295 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4296 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4297 } 4298 4299 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4300 ieee80211_ratectl_tx_complete(ni, &txs); 4301 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4302 4303 #ifdef LINUXKPI_DEBUG_80211 4304 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4305 printf("TX-RATE: %s: old %d new %d ridx %d, " 4306 "long_retries %d\n", __func__, 4307 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4308 ridx, txs.long_retries); 4309 } 4310 #endif 4311 } 4312 4313 #ifdef LINUXKPI_DEBUG_80211 4314 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4315 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4316 "band %u hw_queue %u tx_time_est %d : " 4317 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4318 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4319 "tx_time %u is_valid_ack_signal %u " 4320 "status_driver_data [ %p %p ]\n", 4321 __func__, hw, skb, status, info->flags, 4322 info->band, info->hw_queue, info->tx_time_est, 4323 info->status.rates[0].idx, info->status.rates[0].count, 4324 info->status.rates[0].flags, 4325 info->status.rates[1].idx, info->status.rates[1].count, 4326 info->status.rates[1].flags, 4327 info->status.rates[2].idx, info->status.rates[2].count, 4328 info->status.rates[2].flags, 4329 info->status.rates[3].idx, info->status.rates[3].count, 4330 info->status.rates[3].flags, 4331 info->status.ack_signal, info->status.ampdu_ack_len, 4332 info->status.ampdu_len, info->status.antenna, 4333 info->status.tx_time, info->status.is_valid_ack_signal, 4334 info->status.status_driver_data[0], 4335 info->status.status_driver_data[1]); 4336 #endif 4337 4338 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4339 } 4340 4341 /* 4342 * This is an internal bandaid for the moment for the way we glue 4343 * skbs and mbufs together for TX. Once we have skbs backed by 4344 * mbufs this should go away. 4345 * This is a public function but kept on the private KPI (lkpi_) 4346 * and is not exposed by a header file. 4347 */ 4348 static void 4349 lkpi_ieee80211_free_skb_mbuf(void *p) 4350 { 4351 struct ieee80211_node *ni; 4352 struct mbuf *m; 4353 4354 if (p == NULL) 4355 return; 4356 4357 m = (struct mbuf *)p; 4358 M_ASSERTPKTHDR(m); 4359 4360 ni = m->m_pkthdr.PH_loc.ptr; 4361 m->m_pkthdr.PH_loc.ptr = NULL; 4362 if (ni != NULL) 4363 ieee80211_free_node(ni); 4364 m_freem(m); 4365 } 4366 4367 void 4368 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4369 struct delayed_work *w, int delay) 4370 { 4371 struct lkpi_hw *lhw; 4372 4373 /* Need to make sure hw is in a stable (non-suspended) state. */ 4374 IMPROVE(); 4375 4376 lhw = HW_TO_LHW(hw); 4377 queue_delayed_work(lhw->workq, w, delay); 4378 } 4379 4380 void 4381 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4382 struct work_struct *w) 4383 { 4384 struct lkpi_hw *lhw; 4385 4386 /* Need to make sure hw is in a stable (non-suspended) state. */ 4387 IMPROVE(); 4388 4389 lhw = HW_TO_LHW(hw); 4390 queue_work(lhw->workq, w); 4391 } 4392 4393 struct sk_buff * 4394 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4395 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4396 { 4397 struct sk_buff *skb; 4398 struct ieee80211_frame *wh; 4399 uint8_t *p; 4400 size_t len; 4401 4402 len = sizeof(*wh); 4403 len += 2 + ssid_len; 4404 4405 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4406 if (skb == NULL) 4407 return (NULL); 4408 4409 skb_reserve(skb, hw->extra_tx_headroom); 4410 4411 wh = skb_put_zero(skb, sizeof(*wh)); 4412 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4413 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4414 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4415 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4416 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4417 4418 p = skb_put(skb, 2 + ssid_len); 4419 *p++ = IEEE80211_ELEMID_SSID; 4420 *p++ = ssid_len; 4421 if (ssid_len > 0) 4422 memcpy(p, ssid, ssid_len); 4423 4424 return (skb); 4425 } 4426 4427 struct sk_buff * 4428 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4429 struct ieee80211_vif *vif) 4430 { 4431 struct lkpi_vif *lvif; 4432 struct ieee80211vap *vap; 4433 struct sk_buff *skb; 4434 struct ieee80211_frame_pspoll *psp; 4435 uint16_t v; 4436 4437 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4438 if (skb == NULL) 4439 return (NULL); 4440 4441 skb_reserve(skb, hw->extra_tx_headroom); 4442 4443 lvif = VIF_TO_LVIF(vif); 4444 vap = LVIF_TO_VAP(lvif); 4445 4446 psp = skb_put_zero(skb, sizeof(*psp)); 4447 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4448 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4449 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4450 memcpy(&psp->i_aid, &v, sizeof(v)); 4451 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4452 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4453 4454 return (skb); 4455 } 4456 4457 struct sk_buff * 4458 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4459 struct ieee80211_vif *vif, bool qos) 4460 { 4461 struct lkpi_vif *lvif; 4462 struct ieee80211vap *vap; 4463 struct sk_buff *skb; 4464 struct ieee80211_frame *nullf; 4465 4466 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4467 if (skb == NULL) 4468 return (NULL); 4469 4470 skb_reserve(skb, hw->extra_tx_headroom); 4471 4472 lvif = VIF_TO_LVIF(vif); 4473 vap = LVIF_TO_VAP(lvif); 4474 4475 nullf = skb_put_zero(skb, sizeof(*nullf)); 4476 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4477 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4478 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4479 4480 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4481 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4482 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4483 4484 return (skb); 4485 } 4486 4487 struct wireless_dev * 4488 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4489 { 4490 struct lkpi_vif *lvif; 4491 4492 lvif = VIF_TO_LVIF(vif); 4493 return (&lvif->wdev); 4494 } 4495 4496 void 4497 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4498 { 4499 struct lkpi_vif *lvif; 4500 struct ieee80211vap *vap; 4501 enum ieee80211_state nstate; 4502 int arg; 4503 4504 lvif = VIF_TO_LVIF(vif); 4505 vap = LVIF_TO_VAP(lvif); 4506 4507 /* 4508 * Go to init; otherwise we need to elaborately check state and 4509 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4510 * Let the statemachine handle all neccessary changes. 4511 */ 4512 nstate = IEEE80211_S_INIT; 4513 arg = 0; /* Not a valid reason. */ 4514 4515 #ifdef LINUXKPI_DEBUG_80211 4516 if (linuxkpi_debug_80211 & D80211_TRACE) 4517 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4518 #endif 4519 ieee80211_new_state(vap, nstate, arg); 4520 } 4521 4522 void 4523 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4524 { 4525 struct lkpi_vif *lvif; 4526 struct ieee80211vap *vap; 4527 4528 lvif = VIF_TO_LVIF(vif); 4529 vap = LVIF_TO_VAP(lvif); 4530 4531 #ifdef LINUXKPI_DEBUG_80211 4532 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4533 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4534 vif, vap, ieee80211_state_name[vap->iv_state]); 4535 #endif 4536 ieee80211_beacon_miss(vap->iv_ic); 4537 } 4538 4539 MODULE_VERSION(linuxkpi_wlan, 1); 4540 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4541 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4542