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_WME 75 /* #define LKPI_80211_HW_CRYPTO */ 76 77 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 78 79 /* -------------------------------------------------------------------------- */ 80 81 /* Keep public for as long as header files are using it too. */ 82 int linuxkpi_debug_80211; 83 84 #ifdef LINUXKPI_DEBUG_80211 85 SYSCTL_DECL(_compat_linuxkpi); 86 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 87 "LinuxKPI 802.11 compatibility layer"); 88 89 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 90 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 91 92 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 93 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 94 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 95 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 96 #else 97 #define UNIMPLEMENTED do { } while (0) 98 #define TRACEOK() do { } while (0) 99 #endif 100 101 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 102 #ifndef PREP_TX_INFO_DURATION 103 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 104 #endif 105 106 /* c.f. ieee80211_ioctl.c */ 107 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 108 109 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 110 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 111 112 /* IEEE 802.11-05/0257r1 */ 113 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 114 115 const uint8_t tid_to_mac80211_ac[] = { 116 IEEE80211_AC_BE, 117 IEEE80211_AC_BK, 118 IEEE80211_AC_BK, 119 IEEE80211_AC_BE, 120 IEEE80211_AC_VI, 121 IEEE80211_AC_VI, 122 IEEE80211_AC_VO, 123 IEEE80211_AC_VO, 124 #if 0 125 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 126 #endif 127 }; 128 129 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 130 /* 131 * XXX TODO need a "glue layer" to link cfg80211 ops to 132 * mac80211 and to the driver or net80211. 133 * Can we pass some on 1:1? Need to compare the (*f)(). 134 */ 135 }; 136 137 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 138 struct ieee80211_node *); 139 static void lkpi_80211_txq_task(void *, int); 140 static void lkpi_ieee80211_free_skb_mbuf(void *); 141 #ifdef LKPI_80211_WME 142 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 143 #endif 144 145 static void 146 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 147 const char *_f, int _l) 148 { 149 150 #ifdef LINUXKPI_DEBUG_80211 151 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 152 return; 153 if (lsta == NULL) 154 return; 155 156 printf("%s:%d lsta %p ni %p sta %p\n", 157 _f, _l, lsta, ni, &lsta->sta); 158 if (ni != NULL) 159 ieee80211_dump_node(NULL, ni); 160 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 161 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 162 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 163 #endif 164 } 165 166 static void 167 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 168 { 169 struct ieee80211_node *ni; 170 171 ni = lsta->ni; 172 173 LKPI_80211_LVIF_LOCK(lvif); 174 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 175 LKPI_80211_LVIF_UNLOCK(lvif); 176 177 lsta->ni = NULL; 178 ni->ni_drv_data = NULL; 179 if (ni != NULL) 180 ieee80211_free_node(ni); 181 182 IMPROVE("more from lkpi_ic_node_free() should happen here."); 183 184 free(lsta, M_LKPI80211); 185 } 186 187 static struct lkpi_sta * 188 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 189 struct ieee80211_hw *hw, struct ieee80211_node *ni) 190 { 191 struct lkpi_sta *lsta; 192 struct lkpi_vif *lvif; 193 struct ieee80211_vif *vif; 194 struct ieee80211_sta *sta; 195 int band, i, tid; 196 197 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 198 M_NOWAIT | M_ZERO); 199 if (lsta == NULL) 200 return (NULL); 201 202 lsta->added_to_drv = false; 203 lsta->state = IEEE80211_STA_NOTEXIST; 204 #if 0 205 /* 206 * This needs to be done in node_init() as ieee80211_alloc_node() 207 * will initialise the refcount after us. 208 */ 209 lsta->ni = ieee80211_ref_node(ni); 210 #endif 211 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 212 ni->ni_drv_data = lsta; 213 214 lvif = VAP_TO_LVIF(vap); 215 vif = LVIF_TO_VIF(lvif); 216 sta = LSTA_TO_STA(lsta); 217 218 IEEE80211_ADDR_COPY(sta->addr, mac); 219 220 /* TXQ */ 221 for (tid = 0; tid < nitems(sta->txq); tid++) { 222 struct lkpi_txq *ltxq; 223 224 /* We are not limiting ourselves to hw.queues here. */ 225 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 226 M_LKPI80211, M_NOWAIT | M_ZERO); 227 if (ltxq == NULL) 228 goto cleanup; 229 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 230 if (tid == IEEE80211_NUM_TIDS) { 231 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 232 free(ltxq, M_LKPI80211); 233 continue; 234 } 235 IMPROVE("AP/if we support non-STA here too"); 236 ltxq->txq.ac = IEEE80211_AC_VO; 237 } else { 238 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 239 } 240 ltxq->seen_dequeue = false; 241 ltxq->txq.vif = vif; 242 ltxq->txq.tid = tid; 243 ltxq->txq.sta = sta; 244 skb_queue_head_init(<xq->skbq); 245 sta->txq[tid] = <xq->txq; 246 } 247 248 /* Deflink information. */ 249 for (band = 0; band < NUM_NL80211_BANDS; band++) { 250 struct ieee80211_supported_band *supband; 251 252 supband = hw->wiphy->bands[band]; 253 if (supband == NULL) 254 continue; 255 256 for (i = 0; i < supband->n_bitrates; i++) { 257 258 IMPROVE("Further supband->bitrates[i]* checks?"); 259 /* or should we get them from the ni? */ 260 sta->deflink.supp_rates[band] |= BIT(i); 261 } 262 } 263 IMPROVE("ht, vht, he, ... bandwidth, smps_mode, .."); 264 /* bandwidth = IEEE80211_STA_RX_... */ 265 266 /* Deferred TX path. */ 267 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 268 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 269 mbufq_init(&lsta->txq, IFQ_MAXLEN); 270 271 return (lsta); 272 273 cleanup: 274 for (; tid >= 0; tid--) 275 free(sta->txq[tid], M_LKPI80211); 276 free(lsta, M_LKPI80211); 277 return (NULL); 278 } 279 280 static enum nl80211_band 281 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 282 { 283 284 if (IEEE80211_IS_CHAN_2GHZ(c)) 285 return (NL80211_BAND_2GHZ); 286 else if (IEEE80211_IS_CHAN_5GHZ(c)) 287 return (NL80211_BAND_5GHZ); 288 #ifdef __notyet__ 289 else if () 290 return (NL80211_BAND_6GHZ); 291 else if () 292 return (NL80211_BAND_60GHZ); 293 else if (IEEE80211_IS_CHAN_GSM(c)) 294 return (NL80211_BAND_XXX); 295 #endif 296 else 297 panic("%s: unsupported band. c %p flags %#x\n", 298 __func__, c, c->ic_flags); 299 } 300 301 static uint32_t 302 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 303 { 304 305 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 306 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 307 switch (band) { 308 case NL80211_BAND_2GHZ: 309 return (IEEE80211_CHAN_2GHZ); 310 break; 311 case NL80211_BAND_5GHZ: 312 return (IEEE80211_CHAN_5GHZ); 313 break; 314 case NL80211_BAND_60GHZ: 315 break; 316 case NL80211_BAND_6GHZ: 317 break; 318 default: 319 panic("%s: unsupported band %u\n", __func__, band); 320 break; 321 } 322 323 IMPROVE(); 324 return (0x00); 325 } 326 327 #if 0 328 static enum ieee80211_ac_numbers 329 lkpi_ac_net_to_l80211(int ac) 330 { 331 332 switch (ac) { 333 case WME_AC_VO: 334 return (IEEE80211_AC_VO); 335 case WME_AC_VI: 336 return (IEEE80211_AC_VI); 337 case WME_AC_BE: 338 return (IEEE80211_AC_BE); 339 case WME_AC_BK: 340 return (IEEE80211_AC_BK); 341 default: 342 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 343 return (IEEE80211_AC_BE); 344 } 345 } 346 #endif 347 348 static enum nl80211_iftype 349 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 350 { 351 352 switch (opmode) { 353 case IEEE80211_M_IBSS: 354 return (NL80211_IFTYPE_ADHOC); 355 break; 356 case IEEE80211_M_STA: 357 return (NL80211_IFTYPE_STATION); 358 break; 359 case IEEE80211_M_WDS: 360 return (NL80211_IFTYPE_WDS); 361 break; 362 case IEEE80211_M_HOSTAP: 363 return (NL80211_IFTYPE_AP); 364 break; 365 case IEEE80211_M_MONITOR: 366 return (NL80211_IFTYPE_MONITOR); 367 break; 368 case IEEE80211_M_MBSS: 369 return (NL80211_IFTYPE_MESH_POINT); 370 break; 371 case IEEE80211_M_AHDEMO: 372 /* FALLTHROUGH */ 373 default: 374 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 375 /* FALLTHROUGH */ 376 } 377 return (NL80211_IFTYPE_UNSPECIFIED); 378 } 379 380 #ifdef LKPI_80211_HW_CRYPTO 381 static uint32_t 382 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 383 { 384 385 switch (wlan_cipher_suite) { 386 case WLAN_CIPHER_SUITE_WEP40: 387 return (IEEE80211_CRYPTO_WEP); 388 case WLAN_CIPHER_SUITE_TKIP: 389 return (IEEE80211_CRYPTO_TKIP); 390 case WLAN_CIPHER_SUITE_CCMP: 391 return (IEEE80211_CIPHER_AES_CCM); 392 case WLAN_CIPHER_SUITE_WEP104: 393 return (IEEE80211_CRYPTO_WEP); 394 case WLAN_CIPHER_SUITE_AES_CMAC: 395 case WLAN_CIPHER_SUITE_GCMP: 396 case WLAN_CIPHER_SUITE_GCMP_256: 397 case WLAN_CIPHER_SUITE_CCMP_256: 398 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 399 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 400 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 401 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 402 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 403 break; 404 default: 405 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 406 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 407 } 408 409 return (0); 410 } 411 412 static uint32_t 413 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 414 { 415 416 switch (cipher) { 417 case IEEE80211_CIPHER_TKIP: 418 return (WLAN_CIPHER_SUITE_TKIP); 419 case IEEE80211_CIPHER_AES_CCM: 420 return (WLAN_CIPHER_SUITE_CCMP); 421 case IEEE80211_CIPHER_WEP: 422 if (keylen < 8) 423 return (WLAN_CIPHER_SUITE_WEP40); 424 else 425 return (WLAN_CIPHER_SUITE_WEP104); 426 break; 427 case IEEE80211_CIPHER_AES_OCB: 428 case IEEE80211_CIPHER_TKIPMIC: 429 case IEEE80211_CIPHER_CKIP: 430 case IEEE80211_CIPHER_NONE: 431 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 432 break; 433 default: 434 printf("%s: unknown cipher %#010x\n", __func__, cipher); 435 }; 436 return (0); 437 } 438 #endif 439 440 #ifdef __notyet__ 441 static enum ieee80211_sta_state 442 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 443 { 444 445 /* 446 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 447 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 448 */ 449 switch (state) { 450 case IEEE80211_S_INIT: 451 return (IEEE80211_STA_NOTEXIST); 452 case IEEE80211_S_SCAN: 453 return (IEEE80211_STA_NONE); 454 case IEEE80211_S_AUTH: 455 return (IEEE80211_STA_AUTH); 456 case IEEE80211_S_ASSOC: 457 return (IEEE80211_STA_ASSOC); 458 case IEEE80211_S_RUN: 459 return (IEEE80211_STA_AUTHORIZED); 460 case IEEE80211_S_CAC: 461 case IEEE80211_S_CSA: 462 case IEEE80211_S_SLEEP: 463 default: 464 UNIMPLEMENTED; 465 }; 466 467 return (IEEE80211_STA_NOTEXIST); 468 } 469 #endif 470 471 static struct linuxkpi_ieee80211_channel * 472 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 473 struct ieee80211_channel *c) 474 { 475 struct ieee80211_hw *hw; 476 struct linuxkpi_ieee80211_channel *channels; 477 enum nl80211_band band; 478 int i, nchans; 479 480 hw = LHW_TO_HW(lhw); 481 band = lkpi_net80211_chan_to_nl80211_band(c); 482 if (hw->wiphy->bands[band] == NULL) 483 return (NULL); 484 485 nchans = hw->wiphy->bands[band]->n_channels; 486 if (nchans <= 0) 487 return (NULL); 488 489 channels = hw->wiphy->bands[band]->channels; 490 for (i = 0; i < nchans; i++) { 491 if (channels[i].hw_value == c->ic_ieee) 492 return (&channels[i]); 493 } 494 495 return (NULL); 496 } 497 498 static struct linuxkpi_ieee80211_channel * 499 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 500 { 501 struct linuxkpi_ieee80211_channel *chan; 502 struct ieee80211_channel *c; 503 struct lkpi_hw *lhw; 504 505 chan = NULL; 506 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 507 c = ni->ni_chan; 508 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 509 c = ic->ic_bsschan; 510 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 511 c = ic->ic_curchan; 512 else 513 c = NULL; 514 515 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 516 lhw = ic->ic_softc; 517 chan = lkpi_find_lkpi80211_chan(lhw, c); 518 } 519 520 return (chan); 521 } 522 523 struct linuxkpi_ieee80211_channel * 524 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 525 { 526 enum nl80211_band band; 527 528 for (band = 0; band < NUM_NL80211_BANDS; band++) { 529 struct ieee80211_supported_band *supband; 530 struct linuxkpi_ieee80211_channel *channels; 531 int i; 532 533 supband = wiphy->bands[band]; 534 if (supband == NULL || supband->n_channels == 0) 535 continue; 536 537 channels = supband->channels; 538 for (i = 0; i < supband->n_channels; i++) { 539 if (channels[i].center_freq == freq) 540 return (&channels[i]); 541 } 542 } 543 544 return (NULL); 545 } 546 547 #ifdef LKPI_80211_HW_CRYPTO 548 static int 549 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 550 enum set_key_cmd cmd) 551 { 552 struct ieee80211com *ic; 553 struct lkpi_hw *lhw; 554 struct ieee80211_hw *hw; 555 struct lkpi_vif *lvif; 556 struct ieee80211_vif *vif; 557 struct ieee80211_sta *sta; 558 struct ieee80211_node *ni; 559 struct ieee80211_key_conf *kc; 560 int error; 561 562 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 563 564 ic = vap->iv_ic; 565 lhw = ic->ic_softc; 566 hw = LHW_TO_HW(lhw); 567 lvif = VAP_TO_LVIF(vap); 568 vif = LVIF_TO_VIF(lvif); 569 570 memset(&kc, 0, sizeof(kc)); 571 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 572 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 573 k->wk_cipher->ic_cipher, k->wk_keylen); 574 kc->keyidx = k->wk_keyix; 575 #if 0 576 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 577 #endif 578 atomic64_set(&kc->tx_pn, k->wk_keytsc); 579 kc->keylen = k->wk_keylen; 580 memcpy(kc->key, k->wk_key, k->wk_keylen); 581 582 switch (kc->cipher) { 583 case WLAN_CIPHER_SUITE_CCMP: 584 kc->iv_len = k->wk_cipher->ic_header; 585 kc->icv_len = k->wk_cipher->ic_trailer; 586 break; 587 case WLAN_CIPHER_SUITE_TKIP: 588 default: 589 IMPROVE(); 590 return (0); 591 }; 592 593 ni = vap->iv_bss; 594 sta = ieee80211_find_sta(vif, ni->ni_bssid); 595 if (sta != NULL) { 596 struct lkpi_sta *lsta; 597 598 lsta = STA_TO_LSTA(sta); 599 lsta->kc = kc; 600 } 601 602 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 603 if (error != 0) { 604 /* XXX-BZ leaking kc currently */ 605 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 606 return (0); 607 } else { 608 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 609 "flags %#10x\n", __func__, 610 kc->keyidx, kc->hw_key_idx, kc->flags); 611 return (1); 612 } 613 } 614 615 static int 616 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 617 { 618 619 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 620 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 621 } 622 static int 623 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 624 { 625 626 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 627 } 628 #endif 629 630 static u_int 631 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 632 { 633 struct netdev_hw_addr_list *mc_list; 634 struct netdev_hw_addr *addr; 635 636 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 637 __func__, arg, sdl, cnt)); 638 639 mc_list = arg; 640 /* If it is on the list already skip it. */ 641 netdev_hw_addr_list_for_each(addr, mc_list) { 642 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 643 return (0); 644 } 645 646 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 647 if (addr == NULL) 648 return (0); 649 650 INIT_LIST_HEAD(&addr->addr_list); 651 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 652 /* XXX this should be a netdev function? */ 653 list_add(&addr->addr_list, &mc_list->addr_list); 654 mc_list->count++; 655 656 #ifdef LINUXKPI_DEBUG_80211 657 if (linuxkpi_debug_80211 & D80211_TRACE) 658 printf("%s:%d: mc_list count %d: added %6D\n", 659 __func__, __LINE__, mc_list->count, addr->addr, ":"); 660 #endif 661 662 return (1); 663 } 664 665 static void 666 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 667 { 668 struct lkpi_hw *lhw; 669 struct ieee80211_hw *hw; 670 struct netdev_hw_addr_list mc_list; 671 struct list_head *le, *next; 672 struct netdev_hw_addr *addr; 673 struct ieee80211vap *vap; 674 u64 mc; 675 unsigned int changed_flags, total_flags; 676 677 lhw = ic->ic_softc; 678 679 if (lhw->ops->prepare_multicast == NULL || 680 lhw->ops->configure_filter == NULL) 681 return; 682 683 if (!lhw->update_mc && !force) 684 return; 685 686 changed_flags = total_flags = 0; 687 mc_list.count = 0; 688 INIT_LIST_HEAD(&mc_list.addr_list); 689 if (ic->ic_allmulti == 0) { 690 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 691 if_foreach_llmaddr(vap->iv_ifp, 692 lkpi_ic_update_mcast_copy, &mc_list); 693 } else { 694 changed_flags |= FIF_ALLMULTI; 695 } 696 697 hw = LHW_TO_HW(lhw); 698 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 699 /* 700 * XXX-BZ make sure to get this sorted what is a change, 701 * what gets all set; what was already set? 702 */ 703 total_flags = changed_flags; 704 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 705 706 #ifdef LINUXKPI_DEBUG_80211 707 if (linuxkpi_debug_80211 & D80211_TRACE) 708 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 709 __func__, changed_flags, mc_list.count, total_flags); 710 #endif 711 712 if (mc_list.count != 0) { 713 list_for_each_safe(le, next, &mc_list.addr_list) { 714 addr = list_entry(le, struct netdev_hw_addr, addr_list); 715 free(addr, M_LKPI80211); 716 mc_list.count--; 717 } 718 } 719 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 720 __func__, &mc_list, mc_list.count)); 721 } 722 723 static enum ieee80211_bss_changed 724 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 725 struct ieee80211vap *vap, const char *_f, int _l) 726 { 727 enum ieee80211_bss_changed bss_changed; 728 729 bss_changed = 0; 730 731 #ifdef LINUXKPI_DEBUG_80211 732 if (linuxkpi_debug_80211 & D80211_TRACE) 733 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 734 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 735 "sync_device_ts %u bss_changed %#08x\n", 736 __func__, __LINE__, _f, _l, 737 vif->bss_conf.assoc, vif->bss_conf.aid, 738 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 739 vif->bss_conf.sync_dtim_count, 740 (uintmax_t)vif->bss_conf.sync_tsf, 741 vif->bss_conf.sync_device_ts, 742 bss_changed); 743 #endif 744 745 if (vif->bss_conf.beacon_int != ni->ni_intval) { 746 vif->bss_conf.beacon_int = ni->ni_intval; 747 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 748 if (vif->bss_conf.beacon_int < 16) 749 vif->bss_conf.beacon_int = 16; 750 bss_changed |= BSS_CHANGED_BEACON_INT; 751 } 752 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 753 vap->iv_dtim_period > 0) { 754 vif->bss_conf.dtim_period = vap->iv_dtim_period; 755 bss_changed |= BSS_CHANGED_BEACON_INFO; 756 } 757 758 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 759 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 760 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 761 762 #ifdef LINUXKPI_DEBUG_80211 763 if (linuxkpi_debug_80211 & D80211_TRACE) 764 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 765 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 766 "sync_device_ts %u bss_changed %#08x\n", 767 __func__, __LINE__, _f, _l, 768 vif->bss_conf.assoc, vif->bss_conf.aid, 769 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 770 vif->bss_conf.sync_dtim_count, 771 (uintmax_t)vif->bss_conf.sync_tsf, 772 vif->bss_conf.sync_device_ts, 773 bss_changed); 774 #endif 775 776 return (bss_changed); 777 } 778 779 static void 780 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 781 { 782 struct ieee80211_hw *hw; 783 int error; 784 785 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) 786 return; 787 788 hw = LHW_TO_HW(lhw); 789 790 IEEE80211_UNLOCK(lhw->ic); 791 LKPI_80211_LHW_LOCK(lhw); 792 /* Need to cancel the scan. */ 793 lkpi_80211_mo_cancel_hw_scan(hw, vif); 794 795 /* Need to make sure we see ieee80211_scan_completed. */ 796 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 797 LKPI_80211_LHW_UNLOCK(lhw); 798 IEEE80211_LOCK(lhw->ic); 799 800 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 801 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 802 __func__, error, lhw, vif); 803 } 804 805 static void 806 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 807 { 808 struct lkpi_hw *lhw; 809 int error; 810 bool old; 811 812 old = hw->conf.flags & IEEE80211_CONF_IDLE; 813 if (old == new) 814 return; 815 816 hw->conf.flags ^= IEEE80211_CONF_IDLE; 817 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 818 if (error != 0 && error != EOPNOTSUPP) { 819 lhw = HW_TO_LHW(hw); 820 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 821 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 822 } 823 } 824 825 static void 826 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 827 struct lkpi_hw *lhw) 828 { 829 sta->aid = 0; 830 if (vif->bss_conf.assoc) { 831 struct ieee80211_hw *hw; 832 enum ieee80211_bss_changed changed; 833 834 lhw->update_mc = true; 835 lkpi_update_mcast_filter(lhw->ic, true); 836 837 changed = 0; 838 vif->bss_conf.assoc = false; 839 vif->bss_conf.aid = 0; 840 changed |= BSS_CHANGED_ASSOC; 841 /* 842 * This will remove the sta from firmware for iwlwifi. 843 * So confusing that they use state and flags and ... ^%$%#%$^. 844 */ 845 IMPROVE(); 846 hw = LHW_TO_HW(lhw); 847 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 848 changed); 849 850 lkpi_hw_conf_idle(hw, true); 851 } 852 } 853 854 static void 855 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 856 bool dequeue_seen, bool no_emptyq) 857 { 858 struct lkpi_txq *ltxq; 859 int tid; 860 861 /* Wake up all queues to know they are allocated in the driver. */ 862 for (tid = 0; tid < nitems(sta->txq); tid++) { 863 864 if (tid == IEEE80211_NUM_TIDS) { 865 IMPROVE("station specific?"); 866 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 867 continue; 868 } else if (tid >= hw->queues) 869 continue; 870 871 if (sta->txq[tid] == NULL) 872 continue; 873 874 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 875 if (dequeue_seen && !ltxq->seen_dequeue) 876 continue; 877 878 if (no_emptyq && skb_queue_empty(<xq->skbq)) 879 continue; 880 881 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 882 } 883 } 884 885 /* -------------------------------------------------------------------------- */ 886 887 static int 888 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 889 { 890 891 return (0); 892 } 893 894 /* lkpi_iv_newstate() handles the stop scan case generally. */ 895 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 896 897 static int 898 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 899 { 900 struct linuxkpi_ieee80211_channel *chan; 901 struct ieee80211_chanctx_conf *conf; 902 struct lkpi_hw *lhw; 903 struct ieee80211_hw *hw; 904 struct lkpi_vif *lvif; 905 struct ieee80211_vif *vif; 906 struct ieee80211_node *ni; 907 struct lkpi_sta *lsta; 908 enum ieee80211_bss_changed bss_changed; 909 struct ieee80211_prep_tx_info prep_tx_info; 910 uint32_t changed; 911 int error; 912 913 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 914 if (chan == NULL) { 915 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 916 return (ESRCH); 917 } 918 919 lhw = vap->iv_ic->ic_softc; 920 hw = LHW_TO_HW(lhw); 921 lvif = VAP_TO_LVIF(vap); 922 vif = LVIF_TO_VIF(lvif); 923 924 ni = ieee80211_ref_node(vap->iv_bss); 925 926 IEEE80211_UNLOCK(vap->iv_ic); 927 928 /* Add chanctx (or if exists, change it). */ 929 if (vif->chanctx_conf != NULL) { 930 conf = vif->chanctx_conf; 931 IMPROVE("diff changes for changed, working on live copy, rcu"); 932 } else { 933 /* Keep separate alloc as in Linux this is rcu managed? */ 934 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 935 M_LKPI80211, M_WAITOK | M_ZERO); 936 } 937 938 conf->rx_chains_dynamic = 1; 939 conf->rx_chains_static = 1; 940 conf->radar_enabled = 941 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 942 conf->def.chan = chan; 943 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 944 conf->def.center_freq1 = chan->center_freq; 945 conf->def.center_freq2 = 0; 946 /* Responder ... */ 947 conf->min_def.chan = chan; 948 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 949 conf->min_def.center_freq1 = chan->center_freq; 950 conf->min_def.center_freq2 = 0; 951 IMPROVE("currently 20_NOHT only"); 952 953 error = 0; 954 if (vif->chanctx_conf != NULL) { 955 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 956 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 957 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 958 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 959 lkpi_80211_mo_change_chanctx(hw, conf, changed); 960 } else { 961 error = lkpi_80211_mo_add_chanctx(hw, conf); 962 if (error == 0 || error == EOPNOTSUPP) { 963 vif->bss_conf.chandef.chan = conf->def.chan; 964 vif->bss_conf.chandef.width = conf->def.width; 965 vif->bss_conf.chandef.center_freq1 = 966 conf->def.center_freq1; 967 vif->bss_conf.chandef.center_freq2 = 968 conf->def.center_freq2; 969 } else { 970 goto out; 971 } 972 /* Assign vif chanctx. */ 973 if (error == 0) 974 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 975 if (error == EOPNOTSUPP) 976 error = 0; 977 if (error != 0) { 978 lkpi_80211_mo_remove_chanctx(hw, conf); 979 free(conf, M_LKPI80211); 980 goto out; 981 } 982 } 983 IMPROVE("update radiotap chan fields too"); 984 985 /* Set bss info (bss_info_changed). */ 986 bss_changed = 0; 987 vif->bss_conf.bssid = ni->ni_bssid; 988 bss_changed |= BSS_CHANGED_BSSID; 989 vif->bss_conf.txpower = ni->ni_txpower; 990 bss_changed |= BSS_CHANGED_TXPOWER; 991 vif->bss_conf.idle = false; 992 bss_changed |= BSS_CHANGED_IDLE; 993 994 /* Should almost assert it is this. */ 995 vif->bss_conf.assoc = false; 996 vif->bss_conf.aid = 0; 997 998 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 999 1000 /* RATES */ 1001 IMPROVE("bss info: not all needs to come now and rates are missing"); 1002 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1003 1004 /* 1005 * This is a bandaid for now. If we went through (*iv_update_bss)() 1006 * and then removed the lsta we end up here without a lsta and have 1007 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1008 * would normally do. 1009 * XXX-BZ I do not like this but currently we have no good way of 1010 * intercepting the bss swap and state changes and packets going out 1011 * workflow so live with this. It is a compat layer after all. 1012 */ 1013 if (ni->ni_drv_data == NULL) { 1014 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1015 if (lsta == NULL) { 1016 error = ENOMEM; 1017 goto out; 1018 } 1019 lsta->ni = ieee80211_ref_node(ni); 1020 } else { 1021 lsta = ni->ni_drv_data; 1022 } 1023 1024 /* Insert the [l]sta into the list of known stations. */ 1025 LKPI_80211_LVIF_LOCK(lvif); 1026 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1027 LKPI_80211_LVIF_UNLOCK(lvif); 1028 1029 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1030 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1031 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1032 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1033 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1034 if (error != 0) { 1035 IMPROVE("do we need to undo the chan ctx?"); 1036 goto out; 1037 } 1038 #if 0 1039 lsta->added_to_drv = true; /* mo manages. */ 1040 #endif 1041 1042 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1043 1044 /* 1045 * Wakeup all queues now that sta is there so we have as much time to 1046 * possibly prepare the queue in the driver to be ready for the 1st 1047 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1048 * is no guarantee or way to check. 1049 * XXX-BZ and by now we know that this does not work on all drivers 1050 * for all queues. 1051 */ 1052 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1053 1054 /* Start mgd_prepare_tx. */ 1055 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1056 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1057 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1058 lsta->in_mgd = true; 1059 1060 /* 1061 * What is going to happen next: 1062 * - <twiddle> .. we should end up in "auth_to_assoc" 1063 * - event_callback 1064 * - update sta_state (NONE to AUTH) 1065 * - mgd_complete_tx 1066 * (ideally we'd do that on a callback for something else ...) 1067 */ 1068 1069 out: 1070 IEEE80211_LOCK(vap->iv_ic); 1071 if (ni != NULL) 1072 ieee80211_free_node(ni); 1073 return (error); 1074 } 1075 1076 static int 1077 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1078 { 1079 struct lkpi_hw *lhw; 1080 struct ieee80211_hw *hw; 1081 struct lkpi_vif *lvif; 1082 struct ieee80211_vif *vif; 1083 struct ieee80211_node *ni; 1084 struct lkpi_sta *lsta; 1085 struct ieee80211_sta *sta; 1086 struct ieee80211_prep_tx_info prep_tx_info; 1087 int error; 1088 1089 lhw = vap->iv_ic->ic_softc; 1090 hw = LHW_TO_HW(lhw); 1091 lvif = VAP_TO_LVIF(vap); 1092 vif = LVIF_TO_VIF(lvif); 1093 1094 /* Keep ni around. */ 1095 ni = ieee80211_ref_node(vap->iv_bss); 1096 lsta = ni->ni_drv_data; 1097 sta = LSTA_TO_STA(lsta); 1098 1099 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1100 1101 IEEE80211_UNLOCK(vap->iv_ic); 1102 1103 /* flush, drop. */ 1104 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1105 1106 /* Wake tx queues to get packet(s) out. */ 1107 lkpi_wake_tx_queues(hw, sta, true, true); 1108 1109 /* flush, no drop */ 1110 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1111 1112 /* End mgd_complete_tx. */ 1113 if (lsta->in_mgd) { 1114 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1115 prep_tx_info.success = false; 1116 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1117 lsta->in_mgd = false; 1118 } 1119 1120 /* sync_rx_queues */ 1121 lkpi_80211_mo_sync_rx_queues(hw); 1122 1123 /* sta_pre_rcu_remove */ 1124 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1125 1126 /* Take the station down. */ 1127 1128 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1129 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1130 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1131 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1132 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1133 if (error != 0) { 1134 IMPROVE("do we need to undo the chan ctx?"); 1135 goto out; 1136 } 1137 #if 0 1138 lsta->added_to_drv = false; /* mo manages. */ 1139 #endif 1140 1141 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1142 1143 lkpi_lsta_remove(lsta, lvif); 1144 1145 /* conf_tx */ 1146 1147 /* Take the chan ctx down. */ 1148 if (vif->chanctx_conf != NULL) { 1149 struct ieee80211_chanctx_conf *conf; 1150 1151 conf = vif->chanctx_conf; 1152 /* Remove vif context. */ 1153 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1154 /* NB: vif->chanctx_conf is NULL now. */ 1155 1156 /* Remove chan ctx. */ 1157 lkpi_80211_mo_remove_chanctx(hw, conf); 1158 free(conf, M_LKPI80211); 1159 } 1160 1161 out: 1162 IEEE80211_LOCK(vap->iv_ic); 1163 if (ni != NULL) 1164 ieee80211_free_node(ni); 1165 return (error); 1166 } 1167 1168 static int 1169 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1170 { 1171 int error; 1172 1173 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1174 if (error == 0) 1175 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1176 return (error); 1177 } 1178 1179 static int 1180 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1181 { 1182 struct lkpi_hw *lhw; 1183 struct ieee80211_hw *hw; 1184 struct lkpi_vif *lvif; 1185 struct ieee80211_vif *vif; 1186 struct ieee80211_node *ni; 1187 struct lkpi_sta *lsta; 1188 struct ieee80211_prep_tx_info prep_tx_info; 1189 int error; 1190 1191 lhw = vap->iv_ic->ic_softc; 1192 hw = LHW_TO_HW(lhw); 1193 lvif = VAP_TO_LVIF(vap); 1194 vif = LVIF_TO_VIF(lvif); 1195 1196 IEEE80211_UNLOCK(vap->iv_ic); 1197 ni = NULL; 1198 1199 /* Finish auth. */ 1200 IMPROVE("event callback"); 1201 1202 /* Update sta_state (NONE to AUTH). */ 1203 ni = ieee80211_ref_node(vap->iv_bss); 1204 lsta = ni->ni_drv_data; 1205 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1206 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1207 "NONE: %#x\n", __func__, lsta, lsta->state)); 1208 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1209 if (error != 0) 1210 goto out; 1211 1212 /* End mgd_complete_tx. */ 1213 if (lsta->in_mgd) { 1214 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1215 prep_tx_info.success = true; 1216 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1217 lsta->in_mgd = false; 1218 } 1219 1220 /* Now start assoc. */ 1221 1222 /* Start mgd_prepare_tx. */ 1223 if (!lsta->in_mgd) { 1224 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1225 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1226 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1227 lsta->in_mgd = true; 1228 } 1229 1230 /* Wake tx queue to get packet out. */ 1231 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1232 1233 /* 1234 * <twiddle> .. we end up in "assoc_to_run" 1235 * - update sta_state (AUTH to ASSOC) 1236 * - conf_tx [all] 1237 * - bss_info_changed (assoc, aid, ssid, ..) 1238 * - change_chanctx (if needed) 1239 * - event_callback 1240 * - mgd_complete_tx 1241 */ 1242 1243 out: 1244 IEEE80211_LOCK(vap->iv_ic); 1245 if (ni != NULL) 1246 ieee80211_free_node(ni); 1247 return (error); 1248 } 1249 1250 /* auth_to_auth, assoc_to_assoc. */ 1251 static int 1252 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1253 { 1254 struct lkpi_hw *lhw; 1255 struct ieee80211_hw *hw; 1256 struct lkpi_vif *lvif; 1257 struct ieee80211_vif *vif; 1258 struct ieee80211_node *ni; 1259 struct lkpi_sta *lsta; 1260 struct ieee80211_prep_tx_info prep_tx_info; 1261 1262 lhw = vap->iv_ic->ic_softc; 1263 hw = LHW_TO_HW(lhw); 1264 lvif = VAP_TO_LVIF(vap); 1265 vif = LVIF_TO_VIF(lvif); 1266 1267 ni = ieee80211_ref_node(vap->iv_bss); 1268 1269 IEEE80211_UNLOCK(vap->iv_ic); 1270 lsta = ni->ni_drv_data; 1271 1272 IMPROVE("event callback?"); 1273 1274 /* End mgd_complete_tx. */ 1275 if (lsta->in_mgd) { 1276 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1277 prep_tx_info.success = false; 1278 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1279 lsta->in_mgd = false; 1280 } 1281 1282 /* Now start assoc. */ 1283 1284 /* Start mgd_prepare_tx. */ 1285 if (!lsta->in_mgd) { 1286 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1287 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1288 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1289 lsta->in_mgd = true; 1290 } 1291 1292 IEEE80211_LOCK(vap->iv_ic); 1293 if (ni != NULL) 1294 ieee80211_free_node(ni); 1295 1296 return (0); 1297 } 1298 1299 static int 1300 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1301 { 1302 struct lkpi_hw *lhw; 1303 struct ieee80211_hw *hw; 1304 struct lkpi_vif *lvif; 1305 struct ieee80211_vif *vif; 1306 struct ieee80211_node *ni; 1307 struct lkpi_sta *lsta; 1308 struct ieee80211_sta *sta; 1309 struct ieee80211_prep_tx_info prep_tx_info; 1310 enum ieee80211_bss_changed bss_changed; 1311 int error; 1312 1313 lhw = vap->iv_ic->ic_softc; 1314 hw = LHW_TO_HW(lhw); 1315 lvif = VAP_TO_LVIF(vap); 1316 vif = LVIF_TO_VIF(lvif); 1317 1318 /* Keep ni around. */ 1319 ni = ieee80211_ref_node(vap->iv_bss); 1320 lsta = ni->ni_drv_data; 1321 sta = LSTA_TO_STA(lsta); 1322 1323 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1324 1325 IEEE80211_UNLOCK(vap->iv_ic); 1326 1327 /* flush, drop. */ 1328 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1329 1330 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1331 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1332 !lsta->in_mgd) { 1333 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1334 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1335 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1336 lsta->in_mgd = true; 1337 } 1338 1339 IEEE80211_LOCK(vap->iv_ic); 1340 1341 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1342 error = lvif->iv_newstate(vap, nstate, arg); 1343 if (error != 0) 1344 goto outni; 1345 1346 IEEE80211_UNLOCK(vap->iv_ic); 1347 1348 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1349 1350 /* Wake tx queues to get packet(s) out. */ 1351 lkpi_wake_tx_queues(hw, sta, true, true); 1352 1353 /* flush, no drop */ 1354 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1355 1356 /* End mgd_complete_tx. */ 1357 if (lsta->in_mgd) { 1358 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1359 prep_tx_info.success = false; 1360 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1361 lsta->in_mgd = false; 1362 } 1363 1364 /* sync_rx_queues */ 1365 lkpi_80211_mo_sync_rx_queues(hw); 1366 1367 /* sta_pre_rcu_remove */ 1368 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1369 1370 /* Take the station down. */ 1371 1372 /* Update sta and change state (from AUTH) to NONE. */ 1373 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1374 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1375 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1376 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1377 if (error != 0) 1378 goto out; 1379 1380 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1381 1382 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1383 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1384 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1385 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1386 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1387 if (error != 0) { 1388 IMPROVE("do we need to undo the chan ctx?"); 1389 goto out; 1390 } 1391 #if 0 1392 lsta->added_to_drv = false; /* mo manages. */ 1393 #endif 1394 1395 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1396 1397 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1398 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1399 lkpi_disassoc(sta, vif, lhw); 1400 1401 IMPROVE("Any bss_info changes to announce?"); 1402 bss_changed = 0; 1403 vif->bss_conf.qos = 0; 1404 bss_changed |= BSS_CHANGED_QOS; 1405 vif->bss_conf.ssid_len = 0; 1406 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1407 bss_changed |= BSS_CHANGED_BSSID; 1408 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1409 1410 lkpi_lsta_remove(lsta, lvif); 1411 1412 /* conf_tx */ 1413 1414 /* Take the chan ctx down. */ 1415 if (vif->chanctx_conf != NULL) { 1416 struct ieee80211_chanctx_conf *conf; 1417 1418 conf = vif->chanctx_conf; 1419 /* Remove vif context. */ 1420 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1421 /* NB: vif->chanctx_conf is NULL now. */ 1422 1423 /* Remove chan ctx. */ 1424 lkpi_80211_mo_remove_chanctx(hw, conf); 1425 free(conf, M_LKPI80211); 1426 } 1427 1428 error = EALREADY; 1429 out: 1430 IEEE80211_LOCK(vap->iv_ic); 1431 outni: 1432 if (ni != NULL) 1433 ieee80211_free_node(ni); 1434 return (error); 1435 } 1436 1437 static int 1438 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1439 { 1440 int error; 1441 1442 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1443 if (error != 0 && error != EALREADY) 1444 return (error); 1445 1446 /* At this point iv_bss is long a new node! */ 1447 1448 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1449 return (error); 1450 } 1451 1452 static int 1453 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1454 { 1455 int error; 1456 1457 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1458 return (error); 1459 } 1460 1461 static int 1462 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1463 { 1464 int error; 1465 1466 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1467 return (error); 1468 } 1469 1470 static int 1471 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1472 { 1473 struct lkpi_hw *lhw; 1474 struct ieee80211_hw *hw; 1475 struct lkpi_vif *lvif; 1476 struct ieee80211_vif *vif; 1477 struct ieee80211_node *ni; 1478 struct lkpi_sta *lsta; 1479 struct ieee80211_sta *sta; 1480 struct ieee80211_prep_tx_info prep_tx_info; 1481 enum ieee80211_bss_changed bss_changed; 1482 int error; 1483 1484 lhw = vap->iv_ic->ic_softc; 1485 hw = LHW_TO_HW(lhw); 1486 lvif = VAP_TO_LVIF(vap); 1487 vif = LVIF_TO_VIF(lvif); 1488 1489 IEEE80211_UNLOCK(vap->iv_ic); 1490 ni = NULL; 1491 1492 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1493 "and to lesser extend ieee80211_notify_node_join"); 1494 1495 /* Finish assoc. */ 1496 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1497 ni = ieee80211_ref_node(vap->iv_bss); 1498 lsta = ni->ni_drv_data; 1499 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1500 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1501 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1502 sta = LSTA_TO_STA(lsta); 1503 sta->aid = IEEE80211_NODE_AID(ni); 1504 #ifdef LKPI_80211_WME 1505 if (vap->iv_flags & IEEE80211_F_WME) 1506 sta->wme = true; 1507 #endif 1508 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1509 if (error != 0) 1510 goto out; 1511 1512 IMPROVE("wme / conf_tx [all]"); 1513 1514 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1515 bss_changed = 0; 1516 #ifdef LKPI_80211_WME 1517 bss_changed |= lkpi_wme_update(lhw, vap, true); 1518 #endif 1519 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1520 vif->bss_conf.assoc = true; 1521 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1522 bss_changed |= BSS_CHANGED_ASSOC; 1523 } 1524 /* We set SSID but this is not BSSID! */ 1525 vif->bss_conf.ssid_len = ni->ni_esslen; 1526 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1527 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1528 vif->bss_conf.use_short_preamble) { 1529 vif->bss_conf.use_short_preamble ^= 1; 1530 /* bss_changed |= BSS_CHANGED_??? */ 1531 } 1532 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1533 vif->bss_conf.use_short_slot) { 1534 vif->bss_conf.use_short_slot ^= 1; 1535 /* bss_changed |= BSS_CHANGED_??? */ 1536 } 1537 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1538 vif->bss_conf.qos) { 1539 vif->bss_conf.qos ^= 1; 1540 bss_changed |= BSS_CHANGED_QOS; 1541 } 1542 1543 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1544 1545 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1546 1547 /* - change_chanctx (if needed) 1548 * - event_callback 1549 */ 1550 1551 /* End mgd_complete_tx. */ 1552 if (lsta->in_mgd) { 1553 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1554 prep_tx_info.success = true; 1555 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1556 lsta->in_mgd = false; 1557 } 1558 1559 lkpi_hw_conf_idle(hw, false); 1560 1561 /* 1562 * And then: 1563 * - (more packets)? 1564 * - set_key 1565 * - set_default_unicast_key 1566 * - set_key (?) 1567 * - ipv6_addr_change (?) 1568 */ 1569 /* Prepare_multicast && configure_filter. */ 1570 lhw->update_mc = true; 1571 lkpi_update_mcast_filter(vap->iv_ic, true); 1572 1573 if (!ieee80211_node_is_authorized(ni)) { 1574 IMPROVE("net80211 does not consider node authorized"); 1575 } 1576 1577 /* Update sta_state (ASSOC to AUTHORIZED). */ 1578 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1579 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1580 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1581 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1582 if (error != 0) { 1583 IMPROVE("undo some changes?"); 1584 goto out; 1585 } 1586 1587 /* - drv_config (?) 1588 * - bss_info_changed 1589 * - set_rekey_data (?) 1590 * 1591 * And now we should be passing packets. 1592 */ 1593 IMPROVE("Need that bssid setting, and the keys"); 1594 1595 bss_changed = 0; 1596 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1597 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1598 1599 out: 1600 IEEE80211_LOCK(vap->iv_ic); 1601 if (ni != NULL) 1602 ieee80211_free_node(ni); 1603 return (error); 1604 } 1605 1606 static int 1607 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1608 { 1609 int error; 1610 1611 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1612 if (error == 0) 1613 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1614 return (error); 1615 } 1616 1617 static int 1618 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1619 { 1620 struct lkpi_hw *lhw; 1621 struct ieee80211_hw *hw; 1622 struct lkpi_vif *lvif; 1623 struct ieee80211_vif *vif; 1624 struct ieee80211_node *ni; 1625 struct lkpi_sta *lsta; 1626 struct ieee80211_sta *sta; 1627 struct ieee80211_prep_tx_info prep_tx_info; 1628 #if 0 1629 enum ieee80211_bss_changed bss_changed; 1630 #endif 1631 int error; 1632 1633 lhw = vap->iv_ic->ic_softc; 1634 hw = LHW_TO_HW(lhw); 1635 lvif = VAP_TO_LVIF(vap); 1636 vif = LVIF_TO_VIF(lvif); 1637 1638 /* Keep ni around. */ 1639 ni = ieee80211_ref_node(vap->iv_bss); 1640 lsta = ni->ni_drv_data; 1641 sta = LSTA_TO_STA(lsta); 1642 1643 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1644 1645 IEEE80211_UNLOCK(vap->iv_ic); 1646 1647 /* flush, drop. */ 1648 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1649 1650 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1651 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1652 !lsta->in_mgd) { 1653 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1654 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1655 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1656 lsta->in_mgd = true; 1657 } 1658 1659 IEEE80211_LOCK(vap->iv_ic); 1660 1661 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1662 error = lvif->iv_newstate(vap, nstate, arg); 1663 if (error != 0) 1664 goto outni; 1665 1666 IEEE80211_UNLOCK(vap->iv_ic); 1667 1668 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1669 1670 /* Wake tx queues to get packet(s) out. */ 1671 lkpi_wake_tx_queues(hw, sta, true, true); 1672 1673 /* flush, no drop */ 1674 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1675 1676 /* End mgd_complete_tx. */ 1677 if (lsta->in_mgd) { 1678 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1679 prep_tx_info.success = false; 1680 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1681 lsta->in_mgd = false; 1682 } 1683 1684 #if 0 1685 /* sync_rx_queues */ 1686 lkpi_80211_mo_sync_rx_queues(hw); 1687 1688 /* sta_pre_rcu_remove */ 1689 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1690 #endif 1691 1692 /* Take the station down. */ 1693 1694 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1695 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1696 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1697 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1698 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1699 if (error != 0) 1700 goto out; 1701 1702 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1703 1704 /* Update sta_state (ASSOC to AUTH). */ 1705 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1706 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1707 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1708 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1709 if (error != 0) 1710 goto out; 1711 1712 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1713 1714 #if 0 1715 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1716 lkpi_disassoc(sta, vif, lhw); 1717 #endif 1718 1719 error = EALREADY; 1720 out: 1721 IEEE80211_LOCK(vap->iv_ic); 1722 outni: 1723 if (ni != NULL) 1724 ieee80211_free_node(ni); 1725 return (error); 1726 } 1727 1728 static int 1729 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1730 { 1731 struct lkpi_hw *lhw; 1732 struct ieee80211_hw *hw; 1733 struct lkpi_vif *lvif; 1734 struct ieee80211_vif *vif; 1735 struct ieee80211_node *ni; 1736 struct lkpi_sta *lsta; 1737 struct ieee80211_sta *sta; 1738 struct ieee80211_prep_tx_info prep_tx_info; 1739 enum ieee80211_bss_changed bss_changed; 1740 int error; 1741 1742 lhw = vap->iv_ic->ic_softc; 1743 hw = LHW_TO_HW(lhw); 1744 lvif = VAP_TO_LVIF(vap); 1745 vif = LVIF_TO_VIF(lvif); 1746 1747 /* Keep ni around. */ 1748 ni = ieee80211_ref_node(vap->iv_bss); 1749 lsta = ni->ni_drv_data; 1750 sta = LSTA_TO_STA(lsta); 1751 1752 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1753 1754 IEEE80211_UNLOCK(vap->iv_ic); 1755 1756 /* flush, drop. */ 1757 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1758 1759 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1760 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1761 !lsta->in_mgd) { 1762 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1763 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1764 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1765 lsta->in_mgd = true; 1766 } 1767 1768 IEEE80211_LOCK(vap->iv_ic); 1769 1770 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1771 error = lvif->iv_newstate(vap, nstate, arg); 1772 if (error != 0) 1773 goto outni; 1774 1775 IEEE80211_UNLOCK(vap->iv_ic); 1776 1777 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1778 1779 /* Wake tx queues to get packet(s) out. */ 1780 lkpi_wake_tx_queues(hw, sta, true, true); 1781 1782 /* flush, no drop */ 1783 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1784 1785 /* End mgd_complete_tx. */ 1786 if (lsta->in_mgd) { 1787 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1788 prep_tx_info.success = false; 1789 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1790 lsta->in_mgd = false; 1791 } 1792 1793 /* sync_rx_queues */ 1794 lkpi_80211_mo_sync_rx_queues(hw); 1795 1796 /* sta_pre_rcu_remove */ 1797 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1798 1799 /* Take the station down. */ 1800 1801 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1802 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1803 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1804 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1805 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1806 if (error != 0) 1807 goto out; 1808 1809 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1810 1811 /* Update sta_state (ASSOC to AUTH). */ 1812 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1813 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1814 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1815 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1816 if (error != 0) 1817 goto out; 1818 1819 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1820 1821 /* Update sta and change state (from AUTH) to NONE. */ 1822 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1823 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1824 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1825 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1826 if (error != 0) 1827 goto out; 1828 1829 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1830 1831 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1832 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1833 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1834 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1835 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1836 if (error != 0) { 1837 IMPROVE("do we need to undo the chan ctx?"); 1838 goto out; 1839 } 1840 #if 0 1841 lsta->added_to_drv = false; /* mo manages. */ 1842 #endif 1843 1844 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1845 1846 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1847 /* 1848 * One would expect this to happen when going off AUTHORIZED. 1849 * See comment there; removes the sta from fw. 1850 */ 1851 lkpi_disassoc(sta, vif, lhw); 1852 1853 IMPROVE("Any bss_info changes to announce?"); 1854 bss_changed = 0; 1855 vif->bss_conf.qos = 0; 1856 bss_changed |= BSS_CHANGED_QOS; 1857 vif->bss_conf.ssid_len = 0; 1858 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1859 bss_changed |= BSS_CHANGED_BSSID; 1860 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1861 1862 lkpi_lsta_remove(lsta, lvif); 1863 1864 /* conf_tx */ 1865 1866 /* Take the chan ctx down. */ 1867 if (vif->chanctx_conf != NULL) { 1868 struct ieee80211_chanctx_conf *conf; 1869 1870 conf = vif->chanctx_conf; 1871 /* Remove vif context. */ 1872 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1873 /* NB: vif->chanctx_conf is NULL now. */ 1874 1875 /* Remove chan ctx. */ 1876 lkpi_80211_mo_remove_chanctx(hw, conf); 1877 free(conf, M_LKPI80211); 1878 } 1879 1880 error = EALREADY; 1881 out: 1882 IEEE80211_LOCK(vap->iv_ic); 1883 outni: 1884 if (ni != NULL) 1885 ieee80211_free_node(ni); 1886 return (error); 1887 } 1888 1889 static int 1890 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1891 { 1892 1893 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1894 } 1895 1896 static int 1897 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1898 { 1899 int error; 1900 1901 error = lkpi_sta_run_to_init(vap, nstate, arg); 1902 if (error != 0 && error != EALREADY) 1903 return (error); 1904 1905 /* At this point iv_bss is long a new node! */ 1906 1907 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1908 return (error); 1909 } 1910 1911 /* -------------------------------------------------------------------------- */ 1912 1913 /* 1914 * The matches the documented state changes in net80211::sta_newstate(). 1915 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1916 * there are "invalid" (so there is a room for failure here). 1917 */ 1918 struct fsm_state { 1919 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1920 enum ieee80211_state ostate; 1921 enum ieee80211_state nstate; 1922 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1923 } sta_state_fsm[] = { 1924 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1925 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1926 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1927 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1928 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1929 1930 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1931 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1932 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1933 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1934 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1935 1936 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1937 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1938 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1939 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1940 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1941 1942 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1943 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1944 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1945 1946 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1947 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1948 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1949 1950 /* Dummy at the end without handler. */ 1951 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1952 }; 1953 1954 static int 1955 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1956 { 1957 struct ieee80211com *ic; 1958 struct lkpi_hw *lhw; 1959 struct lkpi_vif *lvif; 1960 struct ieee80211_vif *vif; 1961 struct fsm_state *s; 1962 enum ieee80211_state ostate; 1963 int error; 1964 1965 ic = vap->iv_ic; 1966 IEEE80211_LOCK_ASSERT(ic); 1967 ostate = vap->iv_state; 1968 1969 #ifdef LINUXKPI_DEBUG_80211 1970 if (linuxkpi_debug_80211 & D80211_TRACE) 1971 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1972 __func__, __LINE__, vap, nstate, arg); 1973 #endif 1974 1975 if (vap->iv_opmode == IEEE80211_M_STA) { 1976 1977 lhw = ic->ic_softc; 1978 lvif = VAP_TO_LVIF(vap); 1979 vif = LVIF_TO_VIF(lvif); 1980 1981 /* No need to replicate this in most state handlers. */ 1982 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1983 lkpi_stop_hw_scan(lhw, vif); 1984 1985 s = sta_state_fsm; 1986 1987 } else { 1988 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 1989 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 1990 return (ENOSYS); 1991 } 1992 1993 error = 0; 1994 for (; s->handler != NULL; s++) { 1995 if (ostate == s->ostate && nstate == s->nstate) { 1996 #ifdef LINUXKPI_DEBUG_80211 1997 if (linuxkpi_debug_80211 & D80211_TRACE) 1998 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 1999 " %d (%s): arg %d.\n", __func__, 2000 ostate, ieee80211_state_name[ostate], 2001 nstate, ieee80211_state_name[nstate], arg); 2002 #endif 2003 error = s->handler(vap, nstate, arg); 2004 break; 2005 } 2006 } 2007 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2008 2009 if (s->handler == NULL) { 2010 IMPROVE("turn this into a KASSERT\n"); 2011 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2012 "%d (%s) -> %d (%s)\n", __func__, 2013 ostate, ieee80211_state_name[ostate], 2014 nstate, ieee80211_state_name[nstate]); 2015 return (ENOSYS); 2016 } 2017 2018 if (error == EALREADY) { 2019 #ifdef LINUXKPI_DEBUG_80211 2020 if (linuxkpi_debug_80211 & D80211_TRACE) 2021 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2022 "%d (%s): iv_newstate already handled: %d.\n", 2023 __func__, ostate, ieee80211_state_name[ostate], 2024 nstate, ieee80211_state_name[nstate], error); 2025 #endif 2026 return (0); 2027 } 2028 2029 if (error != 0) { 2030 /* XXX-BZ currently expected so ignore. */ 2031 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2032 "%d (%s) -> %d (%s)\n", __func__, error, 2033 ostate, ieee80211_state_name[ostate], 2034 nstate, ieee80211_state_name[nstate]); 2035 /* return (error); */ 2036 } 2037 2038 #ifdef LINUXKPI_DEBUG_80211 2039 if (linuxkpi_debug_80211 & D80211_TRACE) 2040 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2041 "calling net80211 parent\n", 2042 __func__, __LINE__, vap, nstate, arg); 2043 #endif 2044 2045 return (lvif->iv_newstate(vap, nstate, arg)); 2046 } 2047 2048 /* -------------------------------------------------------------------------- */ 2049 2050 /* 2051 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2052 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2053 * new node without us knowing and thus our ni/lsta are out of sync. 2054 */ 2055 static struct ieee80211_node * 2056 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2057 { 2058 struct lkpi_vif *lvif; 2059 struct ieee80211_node *obss; 2060 struct lkpi_sta *lsta; 2061 struct ieee80211_sta *sta; 2062 2063 obss = vap->iv_bss; 2064 2065 #ifdef LINUXKPI_DEBUG_80211 2066 if (linuxkpi_debug_80211 & D80211_TRACE) 2067 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2068 "ni %p ni_drv_data %p\n", __func__, 2069 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2070 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2071 #endif 2072 2073 /* Nothing to copy from. Just return. */ 2074 if (obss == NULL || obss->ni_drv_data == NULL) 2075 goto out; 2076 2077 /* Nothing to copy to. Just return. */ 2078 IMPROVE("clearing the obss might still be needed?"); 2079 if (ni == NULL) 2080 goto out; 2081 2082 /* Nothing changed? panic? */ 2083 if (obss == ni) 2084 goto out; 2085 2086 lsta = obss->ni_drv_data; 2087 obss->ni_drv_data = ni->ni_drv_data; 2088 ni->ni_drv_data = lsta; 2089 if (lsta != NULL) { 2090 lsta->ni = ni; 2091 sta = LSTA_TO_STA(lsta); 2092 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2093 } 2094 lsta = obss->ni_drv_data; 2095 if (lsta != NULL) { 2096 lsta->ni = obss; 2097 sta = LSTA_TO_STA(lsta); 2098 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2099 } 2100 2101 out: 2102 lvif = VAP_TO_LVIF(vap); 2103 return (lvif->iv_update_bss(vap, ni)); 2104 } 2105 2106 #ifdef LKPI_80211_WME 2107 static int 2108 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2109 { 2110 struct ieee80211com *ic; 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 2121 IMPROVE(); 2122 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2123 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2124 2125 if (vap == NULL) 2126 return (0); 2127 2128 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2129 return (0); 2130 2131 if (lhw->ops->conf_tx == NULL) 2132 return (0); 2133 2134 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2135 lhw->update_wme = true; 2136 return (0); 2137 } 2138 lhw->update_wme = false; 2139 2140 ic = lhw->ic; 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 hw = LHW_TO_HW(lhw); 2148 lvif = VAP_TO_LVIF(vap); 2149 vif = LVIF_TO_VIF(lvif); 2150 2151 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2152 LKPI_80211_LHW_LOCK(lhw); 2153 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2154 struct wmeParams *wmep; 2155 2156 wmep = &wmeparr[ac]; 2157 bzero(&txqp, sizeof(txqp)); 2158 txqp.cw_min = wmep->wmep_logcwmin; 2159 txqp.cw_max = wmep->wmep_logcwmax; 2160 txqp.txop = wmep->wmep_txopLimit; 2161 txqp.aifs = wmep->wmep_aifsn; 2162 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2163 if (error != 0) 2164 printf("%s: conf_tx ac %u failed %d\n", 2165 __func__, ac, error); 2166 } 2167 LKPI_80211_LHW_UNLOCK(lhw); 2168 changed = BSS_CHANGED_QOS; 2169 if (!planned) 2170 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2171 2172 return (changed); 2173 } 2174 #endif 2175 2176 static int 2177 lkpi_ic_wme_update(struct ieee80211com *ic) 2178 { 2179 #ifdef LKPI_80211_WME 2180 struct ieee80211vap *vap; 2181 struct lkpi_hw *lhw; 2182 2183 IMPROVE("Use the per-VAP callback in net80211."); 2184 vap = TAILQ_FIRST(&ic->ic_vaps); 2185 if (vap == NULL) 2186 return (0); 2187 2188 lhw = ic->ic_softc; 2189 2190 lkpi_wme_update(lhw, vap, false); 2191 #endif 2192 return (0); /* unused */ 2193 } 2194 2195 static struct ieee80211vap * 2196 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2197 int unit, enum ieee80211_opmode opmode, int flags, 2198 const uint8_t bssid[IEEE80211_ADDR_LEN], 2199 const uint8_t mac[IEEE80211_ADDR_LEN]) 2200 { 2201 struct lkpi_hw *lhw; 2202 struct ieee80211_hw *hw; 2203 struct lkpi_vif *lvif; 2204 struct ieee80211vap *vap; 2205 struct ieee80211_vif *vif; 2206 enum ieee80211_bss_changed changed; 2207 size_t len; 2208 int error, i; 2209 2210 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2211 return (NULL); 2212 2213 lhw = ic->ic_softc; 2214 hw = LHW_TO_HW(lhw); 2215 2216 len = sizeof(*lvif); 2217 len += hw->vif_data_size; /* vif->drv_priv */ 2218 2219 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2220 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2221 TAILQ_INIT(&lvif->lsta_head); 2222 vap = LVIF_TO_VAP(lvif); 2223 2224 vif = LVIF_TO_VIF(lvif); 2225 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2226 vif->p2p = false; 2227 vif->probe_req_reg = false; 2228 vif->type = lkpi_opmode_to_vif_type(opmode); 2229 lvif->wdev.iftype = vif->type; 2230 /* Need to fill in other fields as well. */ 2231 IMPROVE(); 2232 2233 /* XXX-BZ hardcoded for now! */ 2234 #if 1 2235 vif->chanctx_conf = NULL; 2236 vif->bss_conf.idle = true; 2237 vif->bss_conf.ps = false; 2238 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2239 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2240 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2241 vif->bss_conf.qos = false; 2242 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2243 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2244 vif->bss_conf.assoc = false; 2245 vif->bss_conf.aid = 0; 2246 /* 2247 * We need to initialize it to something as the bss_info_changed call 2248 * will try to copy from it in iwlwifi and NULL is a panic. 2249 * We will set the proper one in scan_to_auth() before being assoc. 2250 * NB: the logic there with using an array as bssid_override and checking 2251 * for non-NULL later is flawed but in their workflow does not seem to 2252 * matter. 2253 */ 2254 vif->bss_conf.bssid = zerobssid; 2255 #endif 2256 #if 0 2257 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2258 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2259 vif->bss_conf.beacon_int = ic->ic_bintval; 2260 /* iwlwifi bug. */ 2261 if (vif->bss_conf.beacon_int < 16) 2262 vif->bss_conf.beacon_int = 16; 2263 #endif 2264 2265 /* Setup queue defaults; driver may override in (*add_interface). */ 2266 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2267 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2268 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2269 else if (hw->queues >= IEEE80211_NUM_ACS) 2270 vif->hw_queue[i] = i; 2271 else 2272 vif->hw_queue[i] = 0; 2273 } 2274 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2275 2276 IMPROVE(); 2277 2278 error = lkpi_80211_mo_start(hw); 2279 if (error != 0) { 2280 printf("%s: failed to start hw: %d\n", __func__, error); 2281 mtx_destroy(&lvif->mtx); 2282 free(lvif, M_80211_VAP); 2283 return (NULL); 2284 } 2285 2286 error = lkpi_80211_mo_add_interface(hw, vif); 2287 if (error != 0) { 2288 IMPROVE(); /* XXX-BZ mo_stop()? */ 2289 printf("%s: failed to add interface: %d\n", __func__, error); 2290 mtx_destroy(&lvif->mtx); 2291 free(lvif, M_80211_VAP); 2292 return (NULL); 2293 } 2294 2295 LKPI_80211_LHW_LVIF_LOCK(lhw); 2296 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2297 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2298 2299 /* Set bss_info. */ 2300 changed = 0; 2301 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2302 2303 /* conf_tx setup; default WME? */ 2304 2305 /* Force MC init. */ 2306 lkpi_update_mcast_filter(ic, true); 2307 2308 IMPROVE(); 2309 2310 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2311 2312 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2313 lvif->iv_newstate = vap->iv_newstate; 2314 vap->iv_newstate = lkpi_iv_newstate; 2315 lvif->iv_update_bss = vap->iv_update_bss; 2316 vap->iv_update_bss = lkpi_iv_update_bss; 2317 2318 /* Key management. */ 2319 if (lhw->ops->set_key != NULL) { 2320 #ifdef LKPI_80211_HW_CRYPTO 2321 vap->iv_key_set = lkpi_iv_key_set; 2322 vap->iv_key_delete = lkpi_iv_key_delete; 2323 #endif 2324 } 2325 2326 ieee80211_ratectl_init(vap); 2327 2328 /* Complete setup. */ 2329 ieee80211_vap_attach(vap, ieee80211_media_change, 2330 ieee80211_media_status, mac); 2331 2332 if (hw->max_listen_interval == 0) 2333 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2334 hw->conf.listen_interval = hw->max_listen_interval; 2335 ic->ic_set_channel(ic); 2336 2337 /* XXX-BZ do we need to be able to update these? */ 2338 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2339 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2340 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2341 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2342 /* any others? */ 2343 IMPROVE(); 2344 2345 return (vap); 2346 } 2347 2348 void 2349 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2350 { 2351 2352 wiphy_unregister(hw->wiphy); 2353 linuxkpi_ieee80211_ifdetach(hw); 2354 2355 IMPROVE(); 2356 } 2357 2358 void 2359 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2360 { 2361 2362 TODO(); 2363 } 2364 2365 static void 2366 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2367 { 2368 struct ieee80211com *ic; 2369 struct lkpi_hw *lhw; 2370 struct ieee80211_hw *hw; 2371 struct lkpi_vif *lvif; 2372 struct ieee80211_vif *vif; 2373 2374 lvif = VAP_TO_LVIF(vap); 2375 vif = LVIF_TO_VIF(lvif); 2376 ic = vap->iv_ic; 2377 lhw = ic->ic_softc; 2378 hw = LHW_TO_HW(lhw); 2379 2380 LKPI_80211_LHW_LVIF_LOCK(lhw); 2381 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2382 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2383 lkpi_80211_mo_remove_interface(hw, vif); 2384 2385 ieee80211_ratectl_deinit(vap); 2386 ieee80211_vap_detach(vap); 2387 mtx_destroy(&lvif->mtx); 2388 free(lvif, M_80211_VAP); 2389 } 2390 2391 static void 2392 lkpi_ic_update_mcast(struct ieee80211com *ic) 2393 { 2394 2395 lkpi_update_mcast_filter(ic, false); 2396 TRACEOK(); 2397 } 2398 2399 static void 2400 lkpi_ic_update_promisc(struct ieee80211com *ic) 2401 { 2402 2403 UNIMPLEMENTED; 2404 } 2405 2406 static void 2407 lkpi_ic_update_chw(struct ieee80211com *ic) 2408 { 2409 2410 UNIMPLEMENTED; 2411 } 2412 2413 /* Start / stop device. */ 2414 static void 2415 lkpi_ic_parent(struct ieee80211com *ic) 2416 { 2417 struct lkpi_hw *lhw; 2418 struct ieee80211_hw *hw; 2419 int error; 2420 bool start_all; 2421 2422 IMPROVE(); 2423 2424 lhw = ic->ic_softc; 2425 hw = LHW_TO_HW(lhw); 2426 start_all = false; 2427 2428 if (ic->ic_nrunning > 0) { 2429 error = lkpi_80211_mo_start(hw); 2430 if (error == 0) 2431 start_all = true; 2432 } else { 2433 lkpi_80211_mo_stop(hw); 2434 } 2435 2436 if (start_all) 2437 ieee80211_start_all(ic); 2438 } 2439 2440 bool 2441 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2442 size_t ie_ids_len) 2443 { 2444 int i; 2445 2446 for (i = 0; i < ie_ids_len; i++) { 2447 if (ie == *ie_ids) 2448 return (true); 2449 } 2450 2451 return (false); 2452 } 2453 2454 /* Return true if skipped; false if error. */ 2455 bool 2456 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2457 { 2458 size_t x; 2459 uint8_t l; 2460 2461 x = *xp; 2462 2463 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2464 __func__, x, ies_len, ies)); 2465 l = ies[x + 1]; 2466 x += 2 + l; 2467 2468 if (x > ies_len) 2469 return (false); 2470 2471 *xp = x; 2472 return (true); 2473 } 2474 2475 static uint8_t * 2476 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2477 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2478 { 2479 struct ieee80211_supported_band *supband; 2480 struct linuxkpi_ieee80211_channel *channels; 2481 const struct ieee80211_channel *chan; 2482 const struct ieee80211_rateset *rs; 2483 uint8_t *pb; 2484 int band, i; 2485 2486 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2487 if ((band_mask & (1 << band)) == 0) 2488 continue; 2489 2490 supband = hw->wiphy->bands[band]; 2491 /* 2492 * This should not happen; 2493 * band_mask is a bitmask of valid bands to scan on. 2494 */ 2495 if (supband == NULL || supband->n_channels == 0) 2496 continue; 2497 2498 /* Find a first channel to get the mode and rates from. */ 2499 channels = supband->channels; 2500 chan = NULL; 2501 for (i = 0; i < supband->n_channels; i++) { 2502 2503 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2504 continue; 2505 2506 chan = ieee80211_find_channel(vap->iv_ic, 2507 channels[i].center_freq, 0); 2508 if (chan != NULL) 2509 break; 2510 } 2511 2512 /* This really should not happen. */ 2513 if (chan == NULL) 2514 continue; 2515 2516 pb = p; 2517 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2518 p = ieee80211_add_rates(p, rs); 2519 p = ieee80211_add_xrates(p, rs); 2520 2521 scan_ies->ies[band] = pb; 2522 scan_ies->len[band] = p - pb; 2523 } 2524 2525 /* Add common_ies */ 2526 pb = p; 2527 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2528 vap->iv_wpa_ie != NULL) { 2529 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2530 p += 2 + vap->iv_wpa_ie[1]; 2531 } 2532 if (vap->iv_appie_probereq != NULL) { 2533 memcpy(p, vap->iv_appie_probereq->ie_data, 2534 vap->iv_appie_probereq->ie_len); 2535 p += vap->iv_appie_probereq->ie_len; 2536 } 2537 scan_ies->common_ies = pb; 2538 scan_ies->common_ie_len = p - pb; 2539 2540 return (p); 2541 } 2542 2543 static void 2544 lkpi_ic_scan_start(struct ieee80211com *ic) 2545 { 2546 struct lkpi_hw *lhw; 2547 struct ieee80211_hw *hw; 2548 struct lkpi_vif *lvif; 2549 struct ieee80211_vif *vif; 2550 struct ieee80211_scan_state *ss; 2551 struct ieee80211vap *vap; 2552 int error; 2553 2554 lhw = ic->ic_softc; 2555 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2556 /* A scan is still running. */ 2557 return; 2558 } 2559 2560 ss = ic->ic_scan; 2561 vap = ss->ss_vap; 2562 if (vap->iv_state != IEEE80211_S_SCAN) { 2563 IMPROVE("We need to be able to scan if not in S_SCAN"); 2564 return; 2565 } 2566 2567 hw = LHW_TO_HW(lhw); 2568 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2569 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2570 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2571 sw_scan: 2572 lvif = VAP_TO_LVIF(vap); 2573 vif = LVIF_TO_VIF(lvif); 2574 2575 if (vap->iv_state == IEEE80211_S_SCAN) 2576 lkpi_hw_conf_idle(hw, false); 2577 2578 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2579 /* net80211::scan_start() handled PS for us. */ 2580 IMPROVE(); 2581 /* XXX Also means it is too late to flush queues? 2582 * need to check iv_sta_ps or overload? */ 2583 /* XXX want to adjust ss end time/ maxdwell? */ 2584 2585 } else { 2586 struct ieee80211_channel *c; 2587 struct ieee80211_scan_request *hw_req; 2588 struct linuxkpi_ieee80211_channel *lc, **cpp; 2589 struct cfg80211_ssid *ssids; 2590 struct cfg80211_scan_6ghz_params *s6gp; 2591 size_t chan_len, nchan, ssids_len, s6ghzlen; 2592 int band, i, ssid_count, common_ie_len; 2593 uint32_t band_mask; 2594 uint8_t *ie, *ieend; 2595 2596 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2597 IMPROVE("individual band scans not yet supported"); 2598 /* In theory net80211 would have to drive this. */ 2599 return; 2600 } 2601 2602 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2603 ssids_len = ssid_count * sizeof(*ssids); 2604 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2605 2606 band_mask = 0; 2607 nchan = 0; 2608 for (i = ss->ss_next; i < ss->ss_last; i++) { 2609 nchan++; 2610 band = lkpi_net80211_chan_to_nl80211_band( 2611 ss->ss_chans[ss->ss_next + i]); 2612 band_mask |= (1 << band); 2613 } 2614 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2615 2616 common_ie_len = 0; 2617 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2618 vap->iv_wpa_ie != NULL) 2619 common_ie_len += vap->iv_wpa_ie[1]; 2620 if (vap->iv_appie_probereq != NULL) 2621 common_ie_len += vap->iv_appie_probereq->ie_len; 2622 2623 /* We would love to check this at an earlier stage... */ 2624 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2625 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2626 "wiphy->max_scan_ie_len %d\n", __func__, 2627 common_ie_len, hw->wiphy->max_scan_ie_len); 2628 } 2629 2630 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2631 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2632 2633 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2634 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2635 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2636 2637 hw_req->req.flags = 0; /* XXX ??? */ 2638 /* hw_req->req.wdev */ 2639 hw_req->req.wiphy = hw->wiphy; 2640 hw_req->req.no_cck = false; /* XXX */ 2641 #if 0 2642 /* This seems to pessimise default scanning behaviour. */ 2643 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2644 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2645 #endif 2646 #ifdef __notyet__ 2647 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2648 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2649 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2650 #endif 2651 2652 hw_req->req.n_channels = nchan; 2653 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2654 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2655 for (i = 0; i < nchan; i++) { 2656 *(cpp + i) = 2657 (struct linuxkpi_ieee80211_channel *)(lc + i); 2658 } 2659 for (i = 0; i < nchan; i++) { 2660 c = ss->ss_chans[ss->ss_next + i]; 2661 2662 lc->hw_value = c->ic_ieee; 2663 lc->center_freq = c->ic_freq; 2664 /* lc->flags */ 2665 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2666 lc->max_power = c->ic_maxpower; 2667 /* lc-> ... */ 2668 lc++; 2669 } 2670 2671 hw_req->req.n_ssids = ssid_count; 2672 if (hw_req->req.n_ssids > 0) { 2673 ssids = (struct cfg80211_ssid *)lc; 2674 hw_req->req.ssids = ssids; 2675 for (i = 0; i < ssid_count; i++) { 2676 ssids->ssid_len = ss->ss_ssid[i].len; 2677 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2678 ss->ss_ssid[i].len); 2679 ssids++; 2680 } 2681 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2682 } else { 2683 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2684 } 2685 2686 /* 6GHz one day. */ 2687 hw_req->req.n_6ghz_params = 0; 2688 hw_req->req.scan_6ghz_params = NULL; 2689 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2690 /* s6gp->... */ 2691 2692 ie = ieend = (uint8_t *)s6gp; 2693 /* Copy per-band IEs, copy common IEs */ 2694 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2695 hw_req->req.ie = ie; 2696 hw_req->req.ie_len = ieend - ie; 2697 2698 lvif = VAP_TO_LVIF(vap); 2699 vif = LVIF_TO_VIF(lvif); 2700 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2701 if (error != 0) { 2702 ieee80211_cancel_scan(vap); 2703 2704 free(hw_req, M_LKPI80211); 2705 lhw->hw_req = NULL; 2706 2707 /* 2708 * XXX-SIGH magic number. 2709 * rtw88 has a magic "return 1" if offloading scan is 2710 * not possible. Fall back to sw scan in that case. 2711 */ 2712 if (error == 1) { 2713 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2714 ieee80211_start_scan(vap, 2715 IEEE80211_SCAN_ACTIVE | 2716 IEEE80211_SCAN_NOPICK | 2717 IEEE80211_SCAN_ONCE, 2718 IEEE80211_SCAN_FOREVER, 2719 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2720 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2721 vap->iv_des_nssid, vap->iv_des_ssid); 2722 goto sw_scan; 2723 } 2724 2725 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2726 __func__, error); 2727 } 2728 } 2729 } 2730 2731 static void 2732 lkpi_ic_scan_end(struct ieee80211com *ic) 2733 { 2734 struct lkpi_hw *lhw; 2735 2736 lhw = ic->ic_softc; 2737 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2738 return; 2739 } 2740 2741 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2742 struct ieee80211_scan_state *ss; 2743 struct ieee80211vap *vap; 2744 struct ieee80211_hw *hw; 2745 struct lkpi_vif *lvif; 2746 struct ieee80211_vif *vif; 2747 2748 ss = ic->ic_scan; 2749 vap = ss->ss_vap; 2750 hw = LHW_TO_HW(lhw); 2751 lvif = VAP_TO_LVIF(vap); 2752 vif = LVIF_TO_VIF(lvif); 2753 2754 lkpi_80211_mo_sw_scan_complete(hw, vif); 2755 2756 /* Send PS to stop buffering if n80211 does not for us? */ 2757 2758 if (vap->iv_state == IEEE80211_S_SCAN) 2759 lkpi_hw_conf_idle(hw, true); 2760 } 2761 } 2762 2763 static void 2764 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2765 unsigned long maxdwell) 2766 { 2767 struct lkpi_hw *lhw; 2768 2769 lhw = ss->ss_ic->ic_softc; 2770 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2771 lhw->ic_scan_curchan(ss, maxdwell); 2772 } 2773 2774 static void 2775 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2776 { 2777 struct lkpi_hw *lhw; 2778 2779 lhw = ss->ss_ic->ic_softc; 2780 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2781 lhw->ic_scan_mindwell(ss); 2782 } 2783 2784 static void 2785 lkpi_ic_set_channel(struct ieee80211com *ic) 2786 { 2787 struct lkpi_hw *lhw; 2788 struct ieee80211_hw *hw; 2789 struct ieee80211_channel *c; 2790 struct linuxkpi_ieee80211_channel *chan; 2791 int error; 2792 2793 lhw = ic->ic_softc; 2794 2795 /* If we do not support (*config)() save us the work. */ 2796 if (lhw->ops->config == NULL) 2797 return; 2798 2799 /* If we have a hw_scan running do not switch channels. */ 2800 if ((lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2801 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) 2802 return; 2803 2804 c = ic->ic_curchan; 2805 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2806 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2807 c, lhw->ops->config); 2808 return; 2809 } 2810 2811 chan = lkpi_find_lkpi80211_chan(lhw, c); 2812 if (chan == NULL) { 2813 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2814 c, chan); 2815 return; 2816 } 2817 2818 /* XXX max power for scanning? */ 2819 IMPROVE(); 2820 2821 hw = LHW_TO_HW(lhw); 2822 cfg80211_chandef_create(&hw->conf.chandef, chan, 2823 NL80211_CHAN_NO_HT); 2824 2825 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2826 if (error != 0 && error != EOPNOTSUPP) { 2827 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2828 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2829 /* XXX should we unroll to the previous chandef? */ 2830 IMPROVE(); 2831 } else { 2832 /* Update radiotap channels as well. */ 2833 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2834 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2835 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2836 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2837 } 2838 2839 /* Currently PS is hard coded off! Not sure it belongs here. */ 2840 IMPROVE(); 2841 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2842 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2843 hw->conf.flags &= ~IEEE80211_CONF_PS; 2844 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2845 if (error != 0 && error != EOPNOTSUPP) 2846 ic_printf(ic, "ERROR: %s: config %#0x returned " 2847 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2848 error); 2849 } 2850 } 2851 2852 static struct ieee80211_node * 2853 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2854 const uint8_t mac[IEEE80211_ADDR_LEN]) 2855 { 2856 struct ieee80211com *ic; 2857 struct lkpi_hw *lhw; 2858 struct ieee80211_node *ni; 2859 struct ieee80211_hw *hw; 2860 struct lkpi_sta *lsta; 2861 2862 ic = vap->iv_ic; 2863 lhw = ic->ic_softc; 2864 2865 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2866 if (lhw->ic_node_alloc == NULL) 2867 return (NULL); 2868 2869 ni = lhw->ic_node_alloc(vap, mac); 2870 if (ni == NULL) 2871 return (NULL); 2872 2873 hw = LHW_TO_HW(lhw); 2874 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2875 if (lsta == NULL) { 2876 if (lhw->ic_node_free != NULL) 2877 lhw->ic_node_free(ni); 2878 return (NULL); 2879 } 2880 2881 return (ni); 2882 } 2883 2884 static int 2885 lkpi_ic_node_init(struct ieee80211_node *ni) 2886 { 2887 struct ieee80211com *ic; 2888 struct lkpi_hw *lhw; 2889 struct lkpi_sta *lsta; 2890 int error; 2891 2892 ic = ni->ni_ic; 2893 lhw = ic->ic_softc; 2894 2895 if (lhw->ic_node_init != NULL) { 2896 error = lhw->ic_node_init(ni); 2897 if (error != 0) 2898 return (error); 2899 } 2900 2901 lsta = ni->ni_drv_data; 2902 2903 /* Now take the reference before linking it to the table. */ 2904 lsta->ni = ieee80211_ref_node(ni); 2905 2906 /* XXX-BZ Sync other state over. */ 2907 IMPROVE(); 2908 2909 return (0); 2910 } 2911 2912 static void 2913 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2914 { 2915 struct ieee80211com *ic; 2916 struct lkpi_hw *lhw; 2917 2918 ic = ni->ni_ic; 2919 lhw = ic->ic_softc; 2920 2921 /* XXX-BZ remove from driver, ... */ 2922 IMPROVE(); 2923 2924 if (lhw->ic_node_cleanup != NULL) 2925 lhw->ic_node_cleanup(ni); 2926 } 2927 2928 static void 2929 lkpi_ic_node_free(struct ieee80211_node *ni) 2930 { 2931 struct ieee80211com *ic; 2932 struct lkpi_hw *lhw; 2933 struct lkpi_sta *lsta; 2934 2935 ic = ni->ni_ic; 2936 lhw = ic->ic_softc; 2937 lsta = ni->ni_drv_data; 2938 if (lsta == NULL) 2939 goto out; 2940 2941 /* XXX-BZ free resources, ... */ 2942 IMPROVE(); 2943 2944 /* Flush mbufq (make sure to release ni refs!). */ 2945 #ifdef __notyet__ 2946 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2947 __func__, lsta, mbufq_len(&lsta->txq))); 2948 #endif 2949 /* Drain taskq. */ 2950 2951 /* Drain sta->txq[] */ 2952 mtx_destroy(&lsta->txq_mtx); 2953 2954 /* Remove lsta if added_to_drv. */ 2955 2956 /* Remove lsta from vif */ 2957 /* Remove ref from lsta node... */ 2958 /* Free lsta. */ 2959 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 2960 2961 out: 2962 if (lhw->ic_node_free != NULL) 2963 lhw->ic_node_free(ni); 2964 } 2965 2966 static int 2967 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2968 const struct ieee80211_bpf_params *params __unused) 2969 { 2970 struct lkpi_sta *lsta; 2971 2972 lsta = ni->ni_drv_data; 2973 2974 /* Queue the packet and enqueue the task to handle it. */ 2975 LKPI_80211_LSTA_LOCK(lsta); 2976 mbufq_enqueue(&lsta->txq, m); 2977 LKPI_80211_LSTA_UNLOCK(lsta); 2978 2979 #ifdef LINUXKPI_DEBUG_80211 2980 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2981 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2982 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2983 mbufq_len(&lsta->txq)); 2984 #endif 2985 2986 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2987 return (0); 2988 } 2989 2990 static void 2991 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2992 { 2993 struct ieee80211_node *ni; 2994 #ifndef LKPI_80211_HW_CRYPTO 2995 struct ieee80211_frame *wh; 2996 #endif 2997 struct ieee80211_key *k; 2998 struct sk_buff *skb; 2999 struct ieee80211com *ic; 3000 struct lkpi_hw *lhw; 3001 struct ieee80211_hw *hw; 3002 struct lkpi_vif *lvif; 3003 struct ieee80211_vif *vif; 3004 struct ieee80211_channel *c; 3005 struct ieee80211_tx_control control; 3006 struct ieee80211_tx_info *info; 3007 struct ieee80211_sta *sta; 3008 struct ieee80211_hdr *hdr; 3009 void *buf; 3010 uint8_t ac, tid; 3011 3012 M_ASSERTPKTHDR(m); 3013 #ifdef LINUXKPI_DEBUG_80211 3014 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3015 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3016 #endif 3017 3018 ni = lsta->ni; 3019 k = NULL; 3020 #ifndef LKPI_80211_HW_CRYPTO 3021 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3022 wh = mtod(m, struct ieee80211_frame *); 3023 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3024 /* Retrieve key for TX && do software encryption. */ 3025 k = ieee80211_crypto_encap(ni, m); 3026 if (k == NULL) { 3027 ieee80211_free_node(ni); 3028 m_freem(m); 3029 return; 3030 } 3031 } 3032 #endif 3033 3034 ic = ni->ni_ic; 3035 lhw = ic->ic_softc; 3036 hw = LHW_TO_HW(lhw); 3037 c = ni->ni_chan; 3038 3039 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3040 struct lkpi_radiotap_tx_hdr *rtap; 3041 3042 rtap = &lhw->rtap_tx; 3043 rtap->wt_flags = 0; 3044 if (k != NULL) 3045 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3046 if (m->m_flags & M_FRAG) 3047 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3048 IMPROVE(); 3049 rtap->wt_rate = 0; 3050 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3051 rtap->wt_chan_freq = htole16(c->ic_freq); 3052 rtap->wt_chan_flags = htole16(c->ic_flags); 3053 } 3054 3055 ieee80211_radiotap_tx(ni->ni_vap, m); 3056 } 3057 3058 /* 3059 * net80211 should handle hw->extra_tx_headroom. 3060 * Though for as long as we are copying we don't mind. 3061 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3062 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3063 */ 3064 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3065 if (skb == NULL) { 3066 printf("XXX ERROR %s: skb alloc failed\n", __func__); 3067 ieee80211_free_node(ni); 3068 m_freem(m); 3069 return; 3070 } 3071 skb_reserve(skb, hw->extra_tx_headroom); 3072 3073 /* XXX-BZ we need a SKB version understanding mbuf. */ 3074 /* Save the mbuf for ieee80211_tx_complete(). */ 3075 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3076 skb->m = m; 3077 #if 0 3078 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3079 #else 3080 buf = skb_put(skb, m->m_pkthdr.len); 3081 m_copydata(m, 0, m->m_pkthdr.len, buf); 3082 #endif 3083 /* Save the ni. */ 3084 m->m_pkthdr.PH_loc.ptr = ni; 3085 3086 lvif = VAP_TO_LVIF(ni->ni_vap); 3087 vif = LVIF_TO_VIF(lvif); 3088 3089 hdr = (void *)skb->data; 3090 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3091 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3092 skb->priority = 0; 3093 ac = IEEE80211_AC_BE; 3094 } else { 3095 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3096 ac = tid_to_mac80211_ac[tid & 7]; 3097 } 3098 skb_set_queue_mapping(skb, ac); 3099 3100 info = IEEE80211_SKB_CB(skb); 3101 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3102 /* Slight delay; probably only happens on scanning so fine? */ 3103 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3104 c = ic->ic_curchan; 3105 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3106 info->hw_queue = vif->hw_queue[ac]; 3107 if (m->m_flags & M_EAPOL) 3108 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3109 info->control.vif = vif; 3110 /* XXX-BZ info->control.rates */ 3111 3112 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3113 if (lsta != NULL) { 3114 sta = LSTA_TO_STA(lsta); 3115 #ifdef LKPI_80211_HW_CRYPTO 3116 info->control.hw_key = lsta->kc; 3117 #endif 3118 } else { 3119 sta = NULL; 3120 } 3121 3122 IMPROVE(); 3123 3124 if (sta != NULL) { 3125 struct lkpi_txq *ltxq; 3126 3127 ltxq = NULL; 3128 if (!ieee80211_is_data_present(hdr->frame_control)) { 3129 if (vif->type == NL80211_IFTYPE_STATION && 3130 lsta->added_to_drv && 3131 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3132 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3133 } else if (lsta->added_to_drv && 3134 sta->txq[skb->priority] != NULL) { 3135 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3136 } 3137 if (ltxq == NULL) 3138 goto ops_tx; 3139 3140 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3141 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3142 3143 skb_queue_tail(<xq->skbq, skb); 3144 #ifdef LINUXKPI_DEBUG_80211 3145 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3146 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3147 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3148 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3149 __func__, __LINE__, 3150 curthread->td_tid, (unsigned int)ticks, 3151 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3152 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3153 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3154 #endif 3155 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3156 return; 3157 } 3158 3159 ops_tx: 3160 #ifdef LINUXKPI_DEBUG_80211 3161 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3162 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3163 "TX ac %d prio %u qmap %u\n", 3164 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3165 skb, ac, skb->priority, skb->qmap); 3166 #endif 3167 memset(&control, 0, sizeof(control)); 3168 control.sta = sta; 3169 3170 lkpi_80211_mo_tx(hw, &control, skb); 3171 return; 3172 } 3173 3174 static void 3175 lkpi_80211_txq_task(void *ctx, int pending) 3176 { 3177 struct lkpi_sta *lsta; 3178 struct mbufq mq; 3179 struct mbuf *m; 3180 3181 lsta = ctx; 3182 3183 #ifdef LINUXKPI_DEBUG_80211 3184 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3185 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3186 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3187 pending, mbufq_len(&lsta->txq)); 3188 #endif 3189 3190 mbufq_init(&mq, IFQ_MAXLEN); 3191 3192 LKPI_80211_LSTA_LOCK(lsta); 3193 mbufq_concat(&mq, &lsta->txq); 3194 LKPI_80211_LSTA_UNLOCK(lsta); 3195 3196 m = mbufq_dequeue(&mq); 3197 while (m != NULL) { 3198 lkpi_80211_txq_tx_one(lsta, m); 3199 m = mbufq_dequeue(&mq); 3200 } 3201 } 3202 3203 static int 3204 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3205 { 3206 3207 /* XXX TODO */ 3208 IMPROVE(); 3209 3210 /* Quick and dirty cheating hack. */ 3211 struct ieee80211_node *ni; 3212 3213 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3214 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3215 } 3216 3217 static void 3218 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3219 int *n, struct ieee80211_channel *c) 3220 { 3221 struct lkpi_hw *lhw; 3222 struct ieee80211_hw *hw; 3223 struct linuxkpi_ieee80211_channel *channels; 3224 uint8_t bands[IEEE80211_MODE_BYTES]; 3225 int chan_flags, error, i, nchans; 3226 3227 /* Channels */ 3228 lhw = ic->ic_softc; 3229 hw = LHW_TO_HW(lhw); 3230 3231 /* NL80211_BAND_2GHZ */ 3232 nchans = 0; 3233 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3234 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3235 if (nchans > 0) { 3236 memset(bands, 0, sizeof(bands)); 3237 chan_flags = 0; 3238 setbit(bands, IEEE80211_MODE_11B); 3239 /* XXX-BZ unclear how to check for 11g. */ 3240 setbit(bands, IEEE80211_MODE_11G); 3241 #ifdef __notyet__ 3242 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3243 setbit(bands, IEEE80211_MODE_11NG); 3244 chan_flags |= NET80211_CBW_FLAG_HT40; 3245 } 3246 #endif 3247 3248 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3249 for (i = 0; i < nchans && *n < maxchan; i++) { 3250 uint32_t nflags = 0; 3251 int cflags = chan_flags; 3252 3253 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3254 printf("%s: %s: Skipping disabled chan " 3255 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3256 channels[i].hw_value, 3257 channels[i].center_freq, channels[i].flags); 3258 continue; 3259 } 3260 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3261 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3262 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3263 nflags |= IEEE80211_CHAN_DFS; 3264 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3265 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3266 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3267 cflags &= ~NET80211_CBW_FLAG_VHT80; 3268 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3269 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3270 cflags &= ~NET80211_CBW_FLAG_HT40; 3271 3272 error = ieee80211_add_channel_cbw(c, maxchan, n, 3273 channels[i].hw_value, channels[i].center_freq, 3274 channels[i].max_power, 3275 nflags, bands, chan_flags); 3276 /* net80211::ENOBUFS: *n >= maxchans */ 3277 if (error != 0 && error != ENOBUFS) 3278 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3279 "returned error %d\n", ic->ic_name, 3280 __func__, channels[i].hw_value, 3281 channels[i].center_freq, channels[i].flags, 3282 nflags, chan_flags, cflags, error); 3283 if (error != 0) 3284 break; 3285 } 3286 } 3287 3288 /* NL80211_BAND_5GHZ */ 3289 nchans = 0; 3290 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3291 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3292 if (nchans > 0) { 3293 memset(bands, 0, sizeof(bands)); 3294 chan_flags = 0; 3295 setbit(bands, IEEE80211_MODE_11A); 3296 #ifdef __not_yet__ 3297 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3298 setbit(bands, IEEE80211_MODE_11NA); 3299 chan_flags |= NET80211_CBW_FLAG_HT40; 3300 } 3301 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3302 3303 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3304 ic->ic_vhtcaps = 3305 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3306 3307 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3308 chan_flags |= NET80211_CBW_FLAG_VHT80; 3309 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3310 ic->ic_vhtcaps)) 3311 chan_flags |= NET80211_CBW_FLAG_VHT160; 3312 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3313 ic->ic_vhtcaps)) 3314 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3315 } 3316 #endif 3317 3318 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3319 for (i = 0; i < nchans && *n < maxchan; i++) { 3320 uint32_t nflags = 0; 3321 int cflags = chan_flags; 3322 3323 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3324 printf("%s: %s: Skipping disabled chan " 3325 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3326 channels[i].hw_value, 3327 channels[i].center_freq, channels[i].flags); 3328 continue; 3329 } 3330 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3331 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3332 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3333 nflags |= IEEE80211_CHAN_DFS; 3334 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3335 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3336 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3337 cflags &= ~NET80211_CBW_FLAG_VHT80; 3338 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3339 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3340 cflags &= ~NET80211_CBW_FLAG_HT40; 3341 3342 error = ieee80211_add_channel_cbw(c, maxchan, n, 3343 channels[i].hw_value, channels[i].center_freq, 3344 channels[i].max_power, 3345 nflags, bands, chan_flags); 3346 /* net80211::ENOBUFS: *n >= maxchans */ 3347 if (error != 0 && error != ENOBUFS) 3348 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3349 "returned error %d\n", ic->ic_name, 3350 __func__, channels[i].hw_value, 3351 channels[i].center_freq, channels[i].flags, 3352 nflags, chan_flags, cflags, error); 3353 if (error != 0) 3354 break; 3355 } 3356 } 3357 } 3358 3359 static void * 3360 lkpi_ieee80211_ifalloc(void) 3361 { 3362 struct ieee80211com *ic; 3363 3364 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3365 if (ic == NULL) 3366 return (NULL); 3367 3368 /* Setting these happens later when we have device information. */ 3369 ic->ic_softc = NULL; 3370 ic->ic_name = "linuxkpi"; 3371 3372 return (ic); 3373 } 3374 3375 struct ieee80211_hw * 3376 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3377 { 3378 struct ieee80211_hw *hw; 3379 struct lkpi_hw *lhw; 3380 struct wiphy *wiphy; 3381 3382 /* Get us and the driver data also allocated. */ 3383 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3384 if (wiphy == NULL) 3385 return (NULL); 3386 3387 lhw = wiphy_priv(wiphy); 3388 lhw->ops = ops; 3389 3390 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3391 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3392 TAILQ_INIT(&lhw->lvif_head); 3393 3394 /* 3395 * XXX-BZ TODO make sure there is a "_null" function to all ops 3396 * not initialized. 3397 */ 3398 hw = LHW_TO_HW(lhw); 3399 hw->wiphy = wiphy; 3400 hw->conf.flags |= IEEE80211_CONF_IDLE; 3401 hw->priv = (void *)(lhw + 1); 3402 3403 /* BSD Specific. */ 3404 lhw->ic = lkpi_ieee80211_ifalloc(); 3405 if (lhw->ic == NULL) { 3406 ieee80211_free_hw(hw); 3407 return (NULL); 3408 } 3409 3410 IMPROVE(); 3411 3412 return (hw); 3413 } 3414 3415 void 3416 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3417 { 3418 struct lkpi_hw *lhw; 3419 3420 lhw = HW_TO_LHW(hw); 3421 free(lhw->ic, M_LKPI80211); 3422 lhw->ic = NULL; 3423 3424 /* Cleanup more of lhw here or in wiphy_free()? */ 3425 sx_destroy(&lhw->lvif_sx); 3426 mtx_destroy(&lhw->mtx); 3427 IMPROVE(); 3428 } 3429 3430 void 3431 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3432 { 3433 struct lkpi_hw *lhw; 3434 struct ieee80211com *ic; 3435 3436 lhw = HW_TO_LHW(hw); 3437 ic = lhw->ic; 3438 3439 /* Now set a proper name before ieee80211_ifattach(). */ 3440 ic->ic_softc = lhw; 3441 ic->ic_name = name; 3442 3443 /* XXX-BZ do we also need to set wiphy name? */ 3444 } 3445 3446 struct ieee80211_hw * 3447 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3448 { 3449 struct lkpi_hw *lhw; 3450 3451 lhw = wiphy_priv(wiphy); 3452 return (LHW_TO_HW(lhw)); 3453 } 3454 3455 static void 3456 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3457 { 3458 struct ieee80211com *ic; 3459 3460 ic = lhw->ic; 3461 ieee80211_radiotap_attach(ic, 3462 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3463 LKPI_RTAP_TX_FLAGS_PRESENT, 3464 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3465 LKPI_RTAP_RX_FLAGS_PRESENT); 3466 } 3467 3468 int 3469 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3470 { 3471 struct ieee80211com *ic; 3472 struct lkpi_hw *lhw; 3473 int band, i; 3474 3475 lhw = HW_TO_LHW(hw); 3476 ic = lhw->ic; 3477 3478 /* We do it this late as wiphy->dev should be set for the name. */ 3479 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3480 if (lhw->workq == NULL) 3481 return (-EAGAIN); 3482 3483 /* XXX-BZ figure this out how they count his... */ 3484 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3485 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3486 hw->wiphy->perm_addr); 3487 } else if (hw->wiphy->n_addresses > 0) { 3488 /* We take the first one. */ 3489 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3490 hw->wiphy->addresses[0].addr); 3491 } else { 3492 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3493 } 3494 3495 #ifdef __not_yet__ 3496 /* See comment in lkpi_80211_txq_tx_one(). */ 3497 ic->ic_headroom = hw->extra_tx_headroom; 3498 #endif 3499 3500 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3501 ic->ic_opmode = IEEE80211_M_STA; 3502 3503 /* Set device capabilities. */ 3504 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3505 ic->ic_caps = 3506 IEEE80211_C_STA | 3507 IEEE80211_C_MONITOR | 3508 IEEE80211_C_WPA | /* WPA/RSN */ 3509 #ifdef LKPI_80211_WME 3510 IEEE80211_C_WME | 3511 #endif 3512 #if 0 3513 IEEE80211_C_PMGT | 3514 #endif 3515 IEEE80211_C_SHSLOT | /* short slot time supported */ 3516 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3517 ; 3518 #if 0 3519 /* Scanning is a different kind of beast to re-work. */ 3520 ic->ic_caps |= IEEE80211_C_BGSCAN; 3521 #endif 3522 if (lhw->ops->hw_scan) { 3523 /* 3524 * Advertise full-offload scanning. 3525 * 3526 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3527 * we essentially disable hw_scan for all drivers not setting 3528 * the flag. 3529 */ 3530 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3531 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3532 } 3533 3534 #ifdef __notyet__ 3535 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3536 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3537 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3538 | IEEE80211_HTCAP_MAXAMSDU_3839 3539 /* max A-MSDU length */ 3540 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3541 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3542 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3543 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3544 #endif 3545 3546 /* 3547 * The wiphy variables report bitmasks of avail antennas. 3548 * (*get_antenna) get the current bitmask sets which can be 3549 * altered by (*set_antenna) for some drivers. 3550 * XXX-BZ will the count alone do us much good long-term in net80211? 3551 */ 3552 if (hw->wiphy->available_antennas_rx || 3553 hw->wiphy->available_antennas_tx) { 3554 uint32_t rxs, txs; 3555 3556 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3557 ic->ic_rxstream = bitcount32(rxs); 3558 ic->ic_txstream = bitcount32(txs); 3559 } 3560 } 3561 3562 ic->ic_cryptocaps = 0; 3563 #ifdef LKPI_80211_HW_CRYPTO 3564 if (hw->wiphy->n_cipher_suites > 0) { 3565 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3566 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3567 hw->wiphy->cipher_suites[i]); 3568 } 3569 #endif 3570 3571 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3572 ic->ic_channels); 3573 3574 ieee80211_ifattach(ic); 3575 3576 ic->ic_update_mcast = lkpi_ic_update_mcast; 3577 ic->ic_update_promisc = lkpi_ic_update_promisc; 3578 ic->ic_update_chw = lkpi_ic_update_chw; 3579 ic->ic_parent = lkpi_ic_parent; 3580 ic->ic_scan_start = lkpi_ic_scan_start; 3581 ic->ic_scan_end = lkpi_ic_scan_end; 3582 ic->ic_set_channel = lkpi_ic_set_channel; 3583 ic->ic_transmit = lkpi_ic_transmit; 3584 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3585 ic->ic_vap_create = lkpi_ic_vap_create; 3586 ic->ic_vap_delete = lkpi_ic_vap_delete; 3587 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3588 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3589 3590 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3591 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3592 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3593 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3594 3595 lhw->ic_node_alloc = ic->ic_node_alloc; 3596 ic->ic_node_alloc = lkpi_ic_node_alloc; 3597 lhw->ic_node_init = ic->ic_node_init; 3598 ic->ic_node_init = lkpi_ic_node_init; 3599 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3600 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3601 lhw->ic_node_free = ic->ic_node_free; 3602 ic->ic_node_free = lkpi_ic_node_free; 3603 3604 lkpi_radiotap_attach(lhw); 3605 3606 /* 3607 * Assign the first possible channel for now; seems Realtek drivers 3608 * expect one. 3609 * Also remember the amount of bands we support and the most rates 3610 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3611 */ 3612 lhw->supbands = lhw->max_rates = 0; 3613 for (band = 0; band < NUM_NL80211_BANDS && 3614 hw->conf.chandef.chan == NULL; band++) { 3615 struct ieee80211_supported_band *supband; 3616 struct linuxkpi_ieee80211_channel *channels; 3617 3618 supband = hw->wiphy->bands[band]; 3619 if (supband == NULL || supband->n_channels == 0) 3620 continue; 3621 3622 lhw->supbands++; 3623 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3624 3625 channels = supband->channels; 3626 for (i = 0; i < supband->n_channels; i++) { 3627 3628 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3629 continue; 3630 3631 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3632 NL80211_CHAN_NO_HT); 3633 break; 3634 } 3635 } 3636 3637 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3638 3639 /* Make sure we do not support more than net80211 is willing to take. */ 3640 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3641 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3642 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3643 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3644 } 3645 3646 /* 3647 * The maximum supported bitrates on any band + size for 3648 * DSSS Parameter Set give our per-band IE size. 3649 * XXX-BZ FIXME add HT VHT ... later 3650 * SSID is the responsibility of the driver and goes on the side. 3651 * The user specified bits coming from the vap go into the 3652 * "common ies" fields. 3653 */ 3654 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3655 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3656 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3657 /* 3658 * net80211 does not seem to support the DSSS Parameter Set but some of 3659 * the drivers insert it so calculate the extra fixed space in. 3660 */ 3661 lhw->scan_ie_len += 2 + 1; 3662 3663 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3664 if (hw->wiphy->max_scan_ie_len > 0) 3665 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3666 3667 if (bootverbose) 3668 ieee80211_announce(ic); 3669 3670 return (0); 3671 } 3672 3673 void 3674 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3675 { 3676 struct lkpi_hw *lhw; 3677 struct ieee80211com *ic; 3678 3679 lhw = HW_TO_LHW(hw); 3680 ic = lhw->ic; 3681 ieee80211_ifdetach(ic); 3682 } 3683 3684 void 3685 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3686 enum ieee80211_iface_iter flags, 3687 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3688 void *arg) 3689 { 3690 struct lkpi_hw *lhw; 3691 struct lkpi_vif *lvif; 3692 struct ieee80211_vif *vif; 3693 bool active, atomic, nin_drv; 3694 3695 lhw = HW_TO_LHW(hw); 3696 3697 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3698 IEEE80211_IFACE_ITER_RESUME_ALL| 3699 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3700 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3701 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3702 __func__, flags); 3703 } 3704 3705 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3706 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3707 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3708 3709 if (atomic) 3710 LKPI_80211_LHW_LVIF_LOCK(lhw); 3711 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3712 struct ieee80211vap *vap; 3713 3714 vif = LVIF_TO_VIF(lvif); 3715 3716 /* 3717 * If we want "active" interfaces, we need to distinguish on 3718 * whether the driver knows about them or not to be able to 3719 * handle the "resume" case correctly. Skip the ones the 3720 * driver does not know about. 3721 */ 3722 if (active && !lvif->added_to_drv && 3723 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3724 continue; 3725 3726 /* 3727 * If we shall skip interfaces not added to the driver do so 3728 * if we haven't yet. 3729 */ 3730 if (nin_drv && !lvif->added_to_drv) 3731 continue; 3732 3733 /* 3734 * Run the iterator function if we are either not asking 3735 * asking for active only or if the VAP is "running". 3736 */ 3737 /* XXX-BZ probably should have state in the lvif as well. */ 3738 vap = LVIF_TO_VAP(lvif); 3739 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3740 iterfunc(arg, vif->addr, vif); 3741 } 3742 if (atomic) 3743 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3744 } 3745 3746 void 3747 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3748 struct ieee80211_vif *vif, 3749 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3750 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3751 void *arg) 3752 { 3753 3754 UNIMPLEMENTED; 3755 } 3756 3757 void 3758 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3759 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3760 void *), 3761 void *arg) 3762 { 3763 3764 UNIMPLEMENTED; 3765 } 3766 3767 void 3768 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3769 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3770 { 3771 struct lkpi_hw *lhw; 3772 struct lkpi_vif *lvif; 3773 struct lkpi_sta *lsta; 3774 struct ieee80211_sta *sta; 3775 3776 KASSERT(hw != NULL && iterfunc != NULL, 3777 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3778 3779 lhw = HW_TO_LHW(hw); 3780 3781 LKPI_80211_LHW_LVIF_LOCK(lhw); 3782 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3783 3784 LKPI_80211_LVIF_LOCK(lvif); 3785 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3786 if (!lsta->added_to_drv) 3787 continue; 3788 sta = LSTA_TO_STA(lsta); 3789 iterfunc(arg, sta); 3790 } 3791 LKPI_80211_LVIF_UNLOCK(lvif); 3792 } 3793 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3794 } 3795 3796 int 3797 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3798 struct linuxkpi_ieee80211_regdomain *regd) 3799 { 3800 struct lkpi_hw *lhw; 3801 struct ieee80211com *ic; 3802 struct ieee80211_regdomain *rd; 3803 3804 lhw = wiphy_priv(wiphy); 3805 ic = lhw->ic; 3806 3807 rd = &ic->ic_regdomain; 3808 if (rd->isocc[0] == '\0') { 3809 rd->isocc[0] = regd->alpha2[0]; 3810 rd->isocc[1] = regd->alpha2[1]; 3811 } 3812 3813 TODO(); 3814 /* XXX-BZ finish the rest. */ 3815 3816 return (0); 3817 } 3818 3819 void 3820 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3821 struct cfg80211_scan_info *info) 3822 { 3823 struct lkpi_hw *lhw; 3824 struct ieee80211com *ic; 3825 struct ieee80211_scan_state *ss; 3826 3827 lhw = wiphy_priv(hw->wiphy); 3828 ic = lhw->ic; 3829 ss = ic->ic_scan; 3830 3831 ieee80211_scan_done(ss->ss_vap); 3832 3833 LKPI_80211_LHW_LOCK(lhw); 3834 free(lhw->hw_req, M_LKPI80211); 3835 lhw->hw_req = NULL; 3836 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3837 wakeup(lhw); 3838 LKPI_80211_LHW_UNLOCK(lhw); 3839 3840 return; 3841 } 3842 3843 void 3844 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3845 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3846 { 3847 struct epoch_tracker et; 3848 struct lkpi_hw *lhw; 3849 struct ieee80211com *ic; 3850 struct mbuf *m; 3851 struct skb_shared_info *shinfo; 3852 struct ieee80211_rx_status *rx_status; 3853 struct ieee80211_rx_stats rx_stats; 3854 struct ieee80211_node *ni; 3855 struct ieee80211vap *vap; 3856 struct ieee80211_hdr *hdr; 3857 struct lkpi_sta *lsta; 3858 int i, offset, ok; 3859 int8_t rssi; 3860 bool is_beacon; 3861 3862 if (skb->len < 2) { 3863 /* Need 80211 stats here. */ 3864 IMPROVE(); 3865 goto err; 3866 } 3867 3868 /* 3869 * For now do the data copy; we can later improve things. Might even 3870 * have an mbuf backing the skb data then? 3871 */ 3872 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3873 if (m == NULL) 3874 goto err; 3875 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3876 3877 shinfo = skb_shinfo(skb); 3878 offset = m->m_len; 3879 for (i = 0; i < shinfo->nr_frags; i++) { 3880 m_copyback(m, offset, shinfo->frags[i].size, 3881 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3882 shinfo->frags[i].offset); 3883 offset += shinfo->frags[i].size; 3884 } 3885 3886 rx_status = IEEE80211_SKB_RXCB(skb); 3887 3888 hdr = (void *)skb->data; 3889 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3890 3891 #ifdef LINUXKPI_DEBUG_80211 3892 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3893 goto no_trace_beacons; 3894 3895 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3896 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3897 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3898 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3899 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3900 shinfo, shinfo->nr_frags, 3901 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3902 3903 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3904 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3905 3906 /* Implement a dump_rxcb() !!! */ 3907 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3908 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3909 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3910 __func__, 3911 (uintmax_t)rx_status->boottime_ns, 3912 (uintmax_t)rx_status->mactime, 3913 rx_status->device_timestamp, 3914 rx_status->flag, 3915 rx_status->freq, 3916 rx_status->bw, 3917 rx_status->encoding, 3918 rx_status->ampdu_reference, 3919 rx_status->band, 3920 rx_status->chains, 3921 rx_status->chain_signal[0], 3922 rx_status->chain_signal[1], 3923 rx_status->chain_signal[2], 3924 rx_status->chain_signal[3], 3925 rx_status->signal, 3926 rx_status->enc_flags, 3927 rx_status->he_dcm, 3928 rx_status->he_gi, 3929 rx_status->he_ru, 3930 rx_status->zero_length_psdu_type, 3931 rx_status->nss, 3932 rx_status->rate_idx); 3933 no_trace_beacons: 3934 #endif 3935 3936 memset(&rx_stats, 0, sizeof(rx_stats)); 3937 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3938 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3939 rx_stats.c_nf = -96; 3940 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3941 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3942 rssi = rx_status->signal; 3943 else 3944 rssi = rx_stats.c_nf; 3945 /* 3946 * net80211 signal strength data are in .5 dBm units relative to 3947 * the current noise floor (see comment in ieee80211_node.h). 3948 */ 3949 rssi -= rx_stats.c_nf; 3950 rx_stats.c_rssi = rssi * 2; 3951 rx_stats.r_flags |= IEEE80211_R_BAND; 3952 rx_stats.c_band = 3953 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3954 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3955 rx_stats.c_freq = rx_status->freq; 3956 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3957 3958 /* XXX (*sta_statistics)() to get to some of that? */ 3959 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3960 3961 lhw = HW_TO_LHW(hw); 3962 ic = lhw->ic; 3963 3964 ok = ieee80211_add_rx_params(m, &rx_stats); 3965 if (ok == 0) { 3966 m_freem(m); 3967 counter_u64_add(ic->ic_ierrors, 1); 3968 goto err; 3969 } 3970 3971 if (sta != NULL) { 3972 lsta = STA_TO_LSTA(sta); 3973 ni = ieee80211_ref_node(lsta->ni); 3974 } else { 3975 struct ieee80211_frame_min *wh; 3976 3977 wh = mtod(m, struct ieee80211_frame_min *); 3978 ni = ieee80211_find_rxnode(ic, wh); 3979 if (ni != NULL) 3980 lsta = ni->ni_drv_data; 3981 } 3982 3983 if (ni != NULL) 3984 vap = ni->ni_vap; 3985 else 3986 /* 3987 * XXX-BZ can we improve this by looking at the frame hdr 3988 * or other meta-data passed up? 3989 */ 3990 vap = TAILQ_FIRST(&ic->ic_vaps); 3991 3992 #ifdef LINUXKPI_DEBUG_80211 3993 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3994 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3995 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3996 ni, vap, is_beacon ? " beacon" : ""); 3997 #endif 3998 3999 if (ni != NULL && vap != NULL && is_beacon && 4000 rx_status->device_timestamp > 0 && 4001 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4002 struct lkpi_vif *lvif; 4003 struct ieee80211_vif *vif; 4004 struct ieee80211_frame *wh; 4005 4006 wh = mtod(m, struct ieee80211_frame *); 4007 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4008 goto skip_device_ts; 4009 4010 lvif = VAP_TO_LVIF(vap); 4011 vif = LVIF_TO_VIF(lvif); 4012 4013 IMPROVE("TIMING_BEACON_ONLY?"); 4014 /* mac80211 specific (not net80211) so keep it here. */ 4015 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4016 /* 4017 * net80211 should take care of the other information (sync_tsf, 4018 * sync_dtim_count) as otherwise we need to parse the beacon. 4019 */ 4020 } 4021 skip_device_ts: 4022 4023 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4024 ieee80211_radiotap_active_vap(vap)) { 4025 struct lkpi_radiotap_rx_hdr *rtap; 4026 4027 rtap = &lhw->rtap_rx; 4028 rtap->wr_tsft = rx_status->device_timestamp; 4029 rtap->wr_flags = 0; 4030 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4031 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4032 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4033 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4034 #if 0 /* .. or it does not given we strip it below. */ 4035 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4036 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4037 #endif 4038 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4039 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4040 rtap->wr_rate = 0; 4041 IMPROVE(); 4042 /* XXX TODO status->encoding / rate_index / bw */ 4043 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4044 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4045 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4046 rtap->wr_dbm_antsignal = rssi; 4047 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4048 } 4049 4050 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4051 m_adj(m, -IEEE80211_CRC_LEN); 4052 4053 NET_EPOCH_ENTER(et); 4054 if (ni != NULL) { 4055 ok = ieee80211_input_mimo(ni, m); 4056 ieee80211_free_node(ni); 4057 if (ok < 0) 4058 m_freem(m); 4059 } else { 4060 ok = ieee80211_input_mimo_all(ic, m); 4061 /* mbuf got consumed. */ 4062 } 4063 NET_EPOCH_EXIT(et); 4064 4065 #ifdef LINUXKPI_DEBUG_80211 4066 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4067 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4068 #endif 4069 4070 IMPROVE(); 4071 4072 err: 4073 /* The skb is ours so we can free it :-) */ 4074 kfree_skb(skb); 4075 } 4076 4077 uint8_t 4078 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4079 { 4080 const struct ieee80211_frame *wh; 4081 uint8_t tid; 4082 4083 /* Linux seems to assume this is a QOS-Data-Frame */ 4084 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4085 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4086 hdr->frame_control)); 4087 4088 wh = (const struct ieee80211_frame *)hdr; 4089 tid = ieee80211_gettid(wh); 4090 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4091 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4092 4093 return (tid); 4094 } 4095 4096 struct wiphy * 4097 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4098 { 4099 struct lkpi_wiphy *lwiphy; 4100 4101 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4102 if (lwiphy == NULL) 4103 return (NULL); 4104 lwiphy->ops = ops; 4105 4106 /* XXX TODO */ 4107 return (LWIPHY_TO_WIPHY(lwiphy)); 4108 } 4109 4110 void 4111 linuxkpi_wiphy_free(struct wiphy *wiphy) 4112 { 4113 struct lkpi_wiphy *lwiphy; 4114 4115 if (wiphy == NULL) 4116 return; 4117 4118 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4119 kfree(lwiphy); 4120 } 4121 4122 uint32_t 4123 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4124 enum nl80211_band band) 4125 { 4126 4127 switch (band) { 4128 case NL80211_BAND_2GHZ: 4129 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4130 break; 4131 case NL80211_BAND_5GHZ: 4132 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4133 break; 4134 default: 4135 /* XXX abort, retry, error, panic? */ 4136 break; 4137 } 4138 4139 return (0); 4140 } 4141 4142 uint32_t 4143 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4144 { 4145 4146 return (ieee80211_mhz2ieee(freq, 0)); 4147 } 4148 4149 static struct lkpi_sta * 4150 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4151 { 4152 struct lkpi_sta *lsta, *temp; 4153 4154 LKPI_80211_LVIF_LOCK(lvif); 4155 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4156 if (lsta->ni == ni) { 4157 LKPI_80211_LVIF_UNLOCK(lvif); 4158 return (lsta); 4159 } 4160 } 4161 LKPI_80211_LVIF_UNLOCK(lvif); 4162 4163 return (NULL); 4164 } 4165 4166 struct ieee80211_sta * 4167 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4168 { 4169 struct lkpi_vif *lvif; 4170 struct lkpi_sta *lsta, *temp; 4171 struct ieee80211_sta *sta; 4172 4173 lvif = VIF_TO_LVIF(vif); 4174 4175 LKPI_80211_LVIF_LOCK(lvif); 4176 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4177 sta = LSTA_TO_STA(lsta); 4178 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4179 LKPI_80211_LVIF_UNLOCK(lvif); 4180 return (sta); 4181 } 4182 } 4183 LKPI_80211_LVIF_UNLOCK(lvif); 4184 return (NULL); 4185 } 4186 4187 struct ieee80211_sta * 4188 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4189 const uint8_t *addr, const uint8_t *ourvifaddr) 4190 { 4191 struct lkpi_hw *lhw; 4192 struct lkpi_vif *lvif; 4193 struct lkpi_sta *lsta; 4194 struct ieee80211_vif *vif; 4195 struct ieee80211_sta *sta; 4196 4197 lhw = wiphy_priv(hw->wiphy); 4198 sta = NULL; 4199 4200 LKPI_80211_LHW_LVIF_LOCK(lhw); 4201 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4202 4203 /* XXX-BZ check our address from the vif. */ 4204 4205 vif = LVIF_TO_VIF(lvif); 4206 if (ourvifaddr != NULL && 4207 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4208 continue; 4209 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4210 if (sta != NULL) 4211 break; 4212 } 4213 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4214 4215 if (sta != NULL) { 4216 lsta = STA_TO_LSTA(sta); 4217 if (!lsta->added_to_drv) 4218 return (NULL); 4219 } 4220 4221 return (sta); 4222 } 4223 4224 struct sk_buff * 4225 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4226 struct ieee80211_txq *txq) 4227 { 4228 struct lkpi_txq *ltxq; 4229 struct sk_buff *skb; 4230 4231 ltxq = TXQ_TO_LTXQ(txq); 4232 ltxq->seen_dequeue = true; 4233 4234 skb = skb_dequeue(<xq->skbq); 4235 4236 return (skb); 4237 } 4238 4239 void 4240 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4241 unsigned long *frame_cnt, unsigned long *byte_cnt) 4242 { 4243 struct lkpi_txq *ltxq; 4244 struct sk_buff *skb; 4245 unsigned long fc, bc; 4246 4247 ltxq = TXQ_TO_LTXQ(txq); 4248 4249 fc = bc = 0; 4250 skb_queue_walk(<xq->skbq, skb) { 4251 fc++; 4252 bc += skb->len; 4253 } 4254 if (frame_cnt) 4255 *frame_cnt = fc; 4256 if (byte_cnt) 4257 *byte_cnt = bc; 4258 4259 /* Validate that this is doing the correct thing. */ 4260 /* Should we keep track on en/dequeue? */ 4261 IMPROVE(); 4262 } 4263 4264 /* 4265 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4266 * The latter tries to derive the success status from the info flags 4267 * passed back from the driver. rawx_mit() saves the ni on the m and the 4268 * m on the skb for us to be able to give feedback to net80211. 4269 */ 4270 void 4271 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4272 int status) 4273 { 4274 struct ieee80211_node *ni; 4275 struct mbuf *m; 4276 4277 m = skb->m; 4278 skb->m = NULL; 4279 4280 if (m != NULL) { 4281 ni = m->m_pkthdr.PH_loc.ptr; 4282 /* Status: 0 is ok, != 0 is error. */ 4283 ieee80211_tx_complete(ni, m, status); 4284 /* ni & mbuf were consumed. */ 4285 } 4286 4287 kfree_skb(skb); 4288 } 4289 4290 void 4291 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4292 { 4293 struct ieee80211_tx_info *info; 4294 struct ieee80211_ratectl_tx_status txs; 4295 struct ieee80211_node *ni; 4296 int status; 4297 4298 info = IEEE80211_SKB_CB(skb); 4299 4300 if (skb->m != NULL) { 4301 struct mbuf *m; 4302 4303 m = skb->m; 4304 ni = m->m_pkthdr.PH_loc.ptr; 4305 memset(&txs, 0, sizeof(txs)); 4306 } else { 4307 ni = NULL; 4308 } 4309 4310 if (info->flags & IEEE80211_TX_STAT_ACK) { 4311 status = 0; /* No error. */ 4312 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4313 } else { 4314 status = 1; 4315 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4316 } 4317 4318 if (ni != NULL) { 4319 int ridx __unused; 4320 #ifdef LINUXKPI_DEBUG_80211 4321 int old_rate; 4322 4323 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4324 #endif 4325 txs.pktlen = skb->len; 4326 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4327 if (info->status.rates[0].count > 1) { 4328 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4329 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4330 } 4331 #if 0 /* Unused in net80211 currently. */ 4332 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4333 txs.final_rate = info->status.rates[0].idx; 4334 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4335 #endif 4336 if (info->status.is_valid_ack_signal) { 4337 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4338 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4339 } 4340 4341 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4342 ieee80211_ratectl_tx_complete(ni, &txs); 4343 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4344 4345 #ifdef LINUXKPI_DEBUG_80211 4346 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4347 printf("TX-RATE: %s: old %d new %d ridx %d, " 4348 "long_retries %d\n", __func__, 4349 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4350 ridx, txs.long_retries); 4351 } 4352 #endif 4353 } 4354 4355 #ifdef LINUXKPI_DEBUG_80211 4356 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4357 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4358 "band %u hw_queue %u tx_time_est %d : " 4359 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4360 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4361 "tx_time %u is_valid_ack_signal %u " 4362 "status_driver_data [ %p %p ]\n", 4363 __func__, hw, skb, status, info->flags, 4364 info->band, info->hw_queue, info->tx_time_est, 4365 info->status.rates[0].idx, info->status.rates[0].count, 4366 info->status.rates[0].flags, 4367 info->status.rates[1].idx, info->status.rates[1].count, 4368 info->status.rates[1].flags, 4369 info->status.rates[2].idx, info->status.rates[2].count, 4370 info->status.rates[2].flags, 4371 info->status.rates[3].idx, info->status.rates[3].count, 4372 info->status.rates[3].flags, 4373 info->status.ack_signal, info->status.ampdu_ack_len, 4374 info->status.ampdu_len, info->status.antenna, 4375 info->status.tx_time, info->status.is_valid_ack_signal, 4376 info->status.status_driver_data[0], 4377 info->status.status_driver_data[1]); 4378 #endif 4379 4380 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4381 } 4382 4383 /* 4384 * This is an internal bandaid for the moment for the way we glue 4385 * skbs and mbufs together for TX. Once we have skbs backed by 4386 * mbufs this should go away. 4387 * This is a public function but kept on the private KPI (lkpi_) 4388 * and is not exposed by a header file. 4389 */ 4390 static void 4391 lkpi_ieee80211_free_skb_mbuf(void *p) 4392 { 4393 struct ieee80211_node *ni; 4394 struct mbuf *m; 4395 4396 if (p == NULL) 4397 return; 4398 4399 m = (struct mbuf *)p; 4400 M_ASSERTPKTHDR(m); 4401 4402 ni = m->m_pkthdr.PH_loc.ptr; 4403 m->m_pkthdr.PH_loc.ptr = NULL; 4404 if (ni != NULL) 4405 ieee80211_free_node(ni); 4406 m_freem(m); 4407 } 4408 4409 void 4410 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4411 struct delayed_work *w, int delay) 4412 { 4413 struct lkpi_hw *lhw; 4414 4415 /* Need to make sure hw is in a stable (non-suspended) state. */ 4416 IMPROVE(); 4417 4418 lhw = HW_TO_LHW(hw); 4419 queue_delayed_work(lhw->workq, w, delay); 4420 } 4421 4422 void 4423 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4424 struct work_struct *w) 4425 { 4426 struct lkpi_hw *lhw; 4427 4428 /* Need to make sure hw is in a stable (non-suspended) state. */ 4429 IMPROVE(); 4430 4431 lhw = HW_TO_LHW(hw); 4432 queue_work(lhw->workq, w); 4433 } 4434 4435 struct sk_buff * 4436 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4437 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4438 { 4439 struct sk_buff *skb; 4440 struct ieee80211_frame *wh; 4441 uint8_t *p; 4442 size_t len; 4443 4444 len = sizeof(*wh); 4445 len += 2 + ssid_len; 4446 4447 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4448 if (skb == NULL) 4449 return (NULL); 4450 4451 skb_reserve(skb, hw->extra_tx_headroom); 4452 4453 wh = skb_put_zero(skb, sizeof(*wh)); 4454 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4455 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4456 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4457 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4458 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4459 4460 p = skb_put(skb, 2 + ssid_len); 4461 *p++ = IEEE80211_ELEMID_SSID; 4462 *p++ = ssid_len; 4463 if (ssid_len > 0) 4464 memcpy(p, ssid, ssid_len); 4465 4466 return (skb); 4467 } 4468 4469 struct sk_buff * 4470 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4471 struct ieee80211_vif *vif) 4472 { 4473 struct lkpi_vif *lvif; 4474 struct ieee80211vap *vap; 4475 struct sk_buff *skb; 4476 struct ieee80211_frame_pspoll *psp; 4477 uint16_t v; 4478 4479 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4480 if (skb == NULL) 4481 return (NULL); 4482 4483 skb_reserve(skb, hw->extra_tx_headroom); 4484 4485 lvif = VIF_TO_LVIF(vif); 4486 vap = LVIF_TO_VAP(lvif); 4487 4488 psp = skb_put_zero(skb, sizeof(*psp)); 4489 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4490 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4491 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4492 memcpy(&psp->i_aid, &v, sizeof(v)); 4493 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4494 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4495 4496 return (skb); 4497 } 4498 4499 struct sk_buff * 4500 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4501 struct ieee80211_vif *vif, bool qos) 4502 { 4503 struct lkpi_vif *lvif; 4504 struct ieee80211vap *vap; 4505 struct sk_buff *skb; 4506 struct ieee80211_frame *nullf; 4507 4508 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4509 if (skb == NULL) 4510 return (NULL); 4511 4512 skb_reserve(skb, hw->extra_tx_headroom); 4513 4514 lvif = VIF_TO_LVIF(vif); 4515 vap = LVIF_TO_VAP(lvif); 4516 4517 nullf = skb_put_zero(skb, sizeof(*nullf)); 4518 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4519 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4520 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4521 4522 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4523 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4524 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4525 4526 return (skb); 4527 } 4528 4529 struct wireless_dev * 4530 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4531 { 4532 struct lkpi_vif *lvif; 4533 4534 lvif = VIF_TO_LVIF(vif); 4535 return (&lvif->wdev); 4536 } 4537 4538 void 4539 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4540 { 4541 struct lkpi_vif *lvif; 4542 struct ieee80211vap *vap; 4543 enum ieee80211_state nstate; 4544 int arg; 4545 4546 lvif = VIF_TO_LVIF(vif); 4547 vap = LVIF_TO_VAP(lvif); 4548 4549 /* 4550 * Go to init; otherwise we need to elaborately check state and 4551 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4552 * Let the statemachine handle all neccessary changes. 4553 */ 4554 nstate = IEEE80211_S_INIT; 4555 arg = 0; /* Not a valid reason. */ 4556 4557 #ifdef LINUXKPI_DEBUG_80211 4558 if (linuxkpi_debug_80211 & D80211_TRACE) 4559 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4560 #endif 4561 ieee80211_new_state(vap, nstate, arg); 4562 } 4563 4564 void 4565 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4566 { 4567 struct lkpi_vif *lvif; 4568 struct ieee80211vap *vap; 4569 4570 lvif = VIF_TO_LVIF(vif); 4571 vap = LVIF_TO_VAP(lvif); 4572 4573 #ifdef LINUXKPI_DEBUG_80211 4574 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4575 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4576 vif, vap, ieee80211_state_name[vap->iv_state]); 4577 #endif 4578 ieee80211_beacon_miss(vap->iv_ic); 4579 } 4580 4581 /* -------------------------------------------------------------------------- */ 4582 4583 struct lkpi_cfg80211_bss { 4584 u_int refcnt; 4585 struct cfg80211_bss bss; 4586 }; 4587 4588 struct lkpi_cfg80211_get_bss_iter_lookup { 4589 struct wiphy *wiphy; 4590 struct linuxkpi_ieee80211_channel *chan; 4591 const uint8_t *bssid; 4592 const uint8_t *ssid; 4593 size_t ssid_len; 4594 enum ieee80211_bss_type bss_type; 4595 enum ieee80211_privacy privacy; 4596 4597 /* 4598 * Something to store a copy of the result as the net80211 scan cache 4599 * is not refoucnted so a scan entry might go away any time. 4600 */ 4601 bool match; 4602 struct cfg80211_bss *bss; 4603 }; 4604 4605 static void 4606 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 4607 { 4608 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 4609 size_t ielen; 4610 4611 lookup = arg; 4612 4613 /* Do not try to find another match. */ 4614 if (lookup->match) 4615 return; 4616 4617 /* Nothing to store result. */ 4618 if (lookup->bss == NULL) 4619 return; 4620 4621 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 4622 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 4623 /* We have no idea what to compare to as the drivers only request ANY */ 4624 return; 4625 } 4626 4627 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 4628 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 4629 /* We have no idea what to compare to as the drivers only request ANY */ 4630 return; 4631 } 4632 4633 if (lookup->chan != NULL) { 4634 struct linuxkpi_ieee80211_channel *chan; 4635 4636 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 4637 se->se_chan->ic_freq); 4638 if (chan == NULL || chan != lookup->chan) 4639 return; 4640 } 4641 4642 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 4643 return; 4644 4645 if (lookup->ssid) { 4646 if (lookup->ssid_len != se->se_ssid[1] || 4647 se->se_ssid[1] == 0) 4648 return; 4649 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 4650 return; 4651 } 4652 4653 ielen = se->se_ies.len; 4654 4655 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 4656 M_LKPI80211, M_NOWAIT | M_ZERO); 4657 if (lookup->bss->ies == NULL) 4658 return; 4659 4660 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 4661 lookup->bss->ies->len = ielen; 4662 if (ielen) 4663 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 4664 4665 lookup->match = true; 4666 } 4667 4668 struct cfg80211_bss * 4669 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 4670 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 4671 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 4672 { 4673 struct lkpi_cfg80211_bss *lbss; 4674 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 4675 struct lkpi_hw *lhw; 4676 struct ieee80211vap *vap; 4677 4678 lhw = wiphy_priv(wiphy); 4679 4680 /* Let's hope we can alloc. */ 4681 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 4682 if (lbss == NULL) { 4683 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 4684 return (NULL); 4685 } 4686 4687 lookup.wiphy = wiphy; 4688 lookup.chan = chan; 4689 lookup.bssid = bssid; 4690 lookup.ssid = ssid; 4691 lookup.ssid_len = ssid_len; 4692 lookup.bss_type = bss_type; 4693 lookup.privacy = privacy; 4694 lookup.match = false; 4695 lookup.bss = &lbss->bss; 4696 4697 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 4698 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 4699 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 4700 if (!lookup.match) { 4701 free(lbss, M_LKPI80211); 4702 return (NULL); 4703 } 4704 4705 refcount_init(&lbss->refcnt, 1); 4706 return (&lbss->bss); 4707 } 4708 4709 void 4710 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 4711 { 4712 struct lkpi_cfg80211_bss *lbss; 4713 4714 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 4715 4716 /* Free everything again on refcount ... */ 4717 if (refcount_release(&lbss->refcnt)) { 4718 free(lbss->bss.ies, M_LKPI80211); 4719 free(lbss, M_LKPI80211); 4720 } 4721 } 4722 4723 void 4724 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 4725 { 4726 struct lkpi_hw *lhw; 4727 struct ieee80211com *ic; 4728 struct ieee80211vap *vap; 4729 4730 lhw = wiphy_priv(wiphy); 4731 ic = lhw->ic; 4732 4733 /* 4734 * If we haven't called ieee80211_ifattach() yet 4735 * or there is no VAP, there are no scans to flush. 4736 */ 4737 if (ic == NULL || 4738 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 4739 return; 4740 4741 /* Should only happen on the current one? Not seen it late enough. */ 4742 IEEE80211_LOCK(ic); 4743 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 4744 ieee80211_scan_flush(vap); 4745 IEEE80211_UNLOCK(ic); 4746 } 4747 4748 /* -------------------------------------------------------------------------- */ 4749 4750 MODULE_VERSION(linuxkpi_wlan, 1); 4751 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4752 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4753