1 /*- 2 * Copyright (c) 2020-2022 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 57 #include <net/if.h> 58 #include <net/if_var.h> 59 #include <net/if_media.h> 60 #include <net/ethernet.h> 61 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_proto.h> 64 #include <net80211/ieee80211_ratectl.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 74 75 /* -------------------------------------------------------------------------- */ 76 77 /* Keep public for as long as header files are using it too. */ 78 int linuxkpi_debug_80211; 79 80 #ifdef LINUXKPI_DEBUG_80211 81 SYSCTL_DECL(_compat_linuxkpi); 82 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 83 "LinuxKPI 802.11 compatibility layer"); 84 85 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 86 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 87 88 #ifndef D80211_TODO 89 #define D80211_TODO 0x1 90 #endif 91 #ifndef D80211_IMPROVE 92 #define D80211_IMPROVE 0x2 93 #endif 94 #define D80211_TRACE 0x10 95 #define D80211_TRACEOK 0x20 96 #define D80211_TRACE_TX 0x100 97 #define D80211_TRACE_TX_DUMP 0x200 98 #define D80211_TRACE_RX 0x1000 99 #define D80211_TRACE_RX_DUMP 0x2000 100 #define D80211_TRACE_RX_BEACONS 0x4000 101 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 102 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 103 #define D80211_TRACE_STA 0x10000 104 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 105 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 106 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 107 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 108 #else 109 #define UNIMPLEMENTED do { } while (0) 110 #define TRACEOK() do { } while (0) 111 #endif 112 113 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 114 #ifndef PREP_TX_INFO_DURATION 115 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 116 #endif 117 118 /* c.f. ieee80211_ioctl.c */ 119 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 120 121 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 122 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 123 124 /* IEEE 802.11-05/0257r1 */ 125 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 126 127 const uint8_t tid_to_mac80211_ac[] = { 128 IEEE80211_AC_BE, 129 IEEE80211_AC_BK, 130 IEEE80211_AC_BK, 131 IEEE80211_AC_BE, 132 IEEE80211_AC_VI, 133 IEEE80211_AC_VI, 134 IEEE80211_AC_VO, 135 IEEE80211_AC_VO, 136 #if 0 137 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 138 #endif 139 }; 140 141 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 142 /* 143 * XXX TODO need a "glue layer" to link cfg80211 ops to 144 * mac80211 and to the driver or net80211. 145 * Can we pass some on 1:1? Need to compare the (*f)(). 146 */ 147 }; 148 149 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 150 struct ieee80211_node *); 151 static void lkpi_80211_txq_task(void *, int); 152 static void lkpi_ieee80211_free_skb_mbuf(void *); 153 154 static void 155 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 156 const char *_f, int _l) 157 { 158 159 #ifdef LINUXKPI_DEBUG_80211 160 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 161 return; 162 if (lsta == NULL) 163 return; 164 165 printf("%s:%d lsta %p ni %p sta %p\n", 166 _f, _l, lsta, ni, &lsta->sta); 167 if (ni != NULL) 168 ieee80211_dump_node(NULL, ni); 169 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 170 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 171 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 172 #endif 173 } 174 175 static void 176 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 177 { 178 struct ieee80211_node *ni; 179 180 ni = lsta->ni; 181 182 LKPI_80211_LVIF_LOCK(lvif); 183 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 184 LKPI_80211_LVIF_UNLOCK(lvif); 185 186 lsta->ni = NULL; 187 ni->ni_drv_data = NULL; 188 if (ni != NULL) 189 ieee80211_free_node(ni); 190 191 IMPROVE("more from lkpi_ic_node_free() should happen here."); 192 193 free(lsta, M_LKPI80211); 194 } 195 196 static struct lkpi_sta * 197 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 198 struct ieee80211_hw *hw, struct ieee80211_node *ni) 199 { 200 struct lkpi_sta *lsta; 201 struct lkpi_vif *lvif; 202 struct ieee80211_vif *vif; 203 struct ieee80211_sta *sta; 204 int tid; 205 206 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 207 M_NOWAIT | M_ZERO); 208 if (lsta == NULL) 209 return (NULL); 210 211 lsta->added_to_drv = false; 212 lsta->state = IEEE80211_STA_NOTEXIST; 213 #if 0 214 /* 215 * This needs to be done in node_init() as ieee80211_alloc_node() 216 * will initialise the refcount after us. 217 */ 218 lsta->ni = ieee80211_ref_node(ni); 219 #endif 220 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 221 ni->ni_drv_data = lsta; 222 223 lvif = VAP_TO_LVIF(vap); 224 vif = LVIF_TO_VIF(lvif); 225 sta = LSTA_TO_STA(lsta); 226 227 IEEE80211_ADDR_COPY(sta->addr, mac); 228 for (tid = 0; tid < nitems(sta->txq); tid++) { 229 struct lkpi_txq *ltxq; 230 231 /* We are not limiting ourselves to hw.queues here. */ 232 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 233 M_LKPI80211, M_NOWAIT | M_ZERO); 234 if (ltxq == NULL) 235 goto cleanup; 236 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 237 if (tid == IEEE80211_NUM_TIDS) { 238 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 239 free(ltxq, M_LKPI80211); 240 continue; 241 } 242 IMPROVE("AP/if we support non-STA here too"); 243 ltxq->txq.ac = IEEE80211_AC_VO; 244 } else { 245 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 246 } 247 ltxq->seen_dequeue = false; 248 ltxq->txq.vif = vif; 249 ltxq->txq.tid = tid; 250 ltxq->txq.sta = sta; 251 skb_queue_head_init(<xq->skbq); 252 sta->txq[tid] = <xq->txq; 253 } 254 255 /* Deferred TX path. */ 256 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 257 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 258 mbufq_init(&lsta->txq, IFQ_MAXLEN); 259 260 return (lsta); 261 262 cleanup: 263 for (; tid >= 0; tid--) 264 free(sta->txq[tid], M_LKPI80211); 265 free(lsta, M_LKPI80211); 266 return (NULL); 267 } 268 269 static enum nl80211_band 270 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 271 { 272 273 if (IEEE80211_IS_CHAN_2GHZ(c)) 274 return (NL80211_BAND_2GHZ); 275 else if (IEEE80211_IS_CHAN_5GHZ(c)) 276 return (NL80211_BAND_5GHZ); 277 #ifdef __notyet__ 278 else if () 279 return (NL80211_BAND_6GHZ); 280 else if () 281 return (NL80211_BAND_60GHZ); 282 else if (IEEE80211_IS_CHAN_GSM(c)) 283 return (NL80211_BAND_XXX); 284 #endif 285 else 286 panic("%s: unsupported band. c %p flags %#x\n", 287 __func__, c, c->ic_flags); 288 } 289 290 static uint32_t 291 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 292 { 293 294 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 295 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 296 switch (band) { 297 case NL80211_BAND_2GHZ: 298 return (IEEE80211_CHAN_2GHZ); 299 break; 300 case NL80211_BAND_5GHZ: 301 return (IEEE80211_CHAN_5GHZ); 302 break; 303 case NL80211_BAND_60GHZ: 304 break; 305 case NL80211_BAND_6GHZ: 306 break; 307 default: 308 panic("%s: unsupported band %u\n", __func__, band); 309 break; 310 } 311 312 IMPROVE(); 313 return (0x00); 314 } 315 316 static enum ieee80211_ac_numbers 317 lkpi_ac_net_to_l80211(int ac) 318 { 319 320 switch (ac) { 321 case WME_AC_VO: 322 return (IEEE80211_AC_VO); 323 case WME_AC_VI: 324 return (IEEE80211_AC_VI); 325 case WME_AC_BE: 326 return (IEEE80211_AC_BE); 327 case WME_AC_BK: 328 return (IEEE80211_AC_BK); 329 default: 330 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 331 return (IEEE80211_AC_BE); 332 } 333 } 334 335 static enum nl80211_iftype 336 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 337 { 338 339 switch (opmode) { 340 case IEEE80211_M_IBSS: 341 return (NL80211_IFTYPE_ADHOC); 342 break; 343 case IEEE80211_M_STA: 344 return (NL80211_IFTYPE_STATION); 345 break; 346 case IEEE80211_M_WDS: 347 return (NL80211_IFTYPE_WDS); 348 break; 349 case IEEE80211_M_HOSTAP: 350 return (NL80211_IFTYPE_AP); 351 break; 352 case IEEE80211_M_MONITOR: 353 return (NL80211_IFTYPE_MONITOR); 354 break; 355 case IEEE80211_M_MBSS: 356 return (NL80211_IFTYPE_MESH_POINT); 357 break; 358 case IEEE80211_M_AHDEMO: 359 /* FALLTHROUGH */ 360 default: 361 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 362 /* FALLTHROUGH */ 363 } 364 return (NL80211_IFTYPE_UNSPECIFIED); 365 } 366 367 #ifdef __notyet__ 368 static uint32_t 369 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 370 { 371 372 switch (wlan_cipher_suite) { 373 case WLAN_CIPHER_SUITE_WEP40: 374 return (IEEE80211_CRYPTO_WEP); 375 case WLAN_CIPHER_SUITE_TKIP: 376 return (IEEE80211_CRYPTO_TKIP); 377 case WLAN_CIPHER_SUITE_CCMP: 378 return (IEEE80211_CIPHER_AES_CCM); 379 case WLAN_CIPHER_SUITE_WEP104: 380 return (IEEE80211_CRYPTO_WEP); 381 case WLAN_CIPHER_SUITE_AES_CMAC: 382 case WLAN_CIPHER_SUITE_GCMP: 383 case WLAN_CIPHER_SUITE_GCMP_256: 384 case WLAN_CIPHER_SUITE_CCMP_256: 385 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 386 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 387 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 388 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 389 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 390 break; 391 default: 392 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 393 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 394 } 395 396 return (0); 397 } 398 #endif 399 400 #ifdef TRY_HW_CRYPTO 401 static uint32_t 402 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 403 { 404 405 switch (cipher) { 406 case IEEE80211_CIPHER_TKIP: 407 return (WLAN_CIPHER_SUITE_TKIP); 408 case IEEE80211_CIPHER_AES_CCM: 409 return (WLAN_CIPHER_SUITE_CCMP); 410 case IEEE80211_CIPHER_WEP: 411 if (keylen < 8) 412 return (WLAN_CIPHER_SUITE_WEP40); 413 else 414 return (WLAN_CIPHER_SUITE_WEP104); 415 break; 416 case IEEE80211_CIPHER_AES_OCB: 417 case IEEE80211_CIPHER_TKIPMIC: 418 case IEEE80211_CIPHER_CKIP: 419 case IEEE80211_CIPHER_NONE: 420 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 421 break; 422 default: 423 printf("%s: unknown cipher %#010x\n", __func__, cipher); 424 }; 425 return (0); 426 } 427 #endif 428 429 #ifdef __notyet__ 430 static enum ieee80211_sta_state 431 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 432 { 433 434 /* 435 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 436 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 437 */ 438 switch (state) { 439 case IEEE80211_S_INIT: 440 return (IEEE80211_STA_NOTEXIST); 441 case IEEE80211_S_SCAN: 442 return (IEEE80211_STA_NONE); 443 case IEEE80211_S_AUTH: 444 return (IEEE80211_STA_AUTH); 445 case IEEE80211_S_ASSOC: 446 return (IEEE80211_STA_ASSOC); 447 case IEEE80211_S_RUN: 448 return (IEEE80211_STA_AUTHORIZED); 449 case IEEE80211_S_CAC: 450 case IEEE80211_S_CSA: 451 case IEEE80211_S_SLEEP: 452 default: 453 UNIMPLEMENTED; 454 }; 455 456 return (IEEE80211_STA_NOTEXIST); 457 } 458 #endif 459 460 static struct linuxkpi_ieee80211_channel * 461 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 462 struct ieee80211_channel *c) 463 { 464 struct ieee80211_hw *hw; 465 struct linuxkpi_ieee80211_channel *channels; 466 enum nl80211_band band; 467 int i, nchans; 468 469 hw = LHW_TO_HW(lhw); 470 band = lkpi_net80211_chan_to_nl80211_band(c); 471 if (hw->wiphy->bands[band] == NULL) 472 return (NULL); 473 474 nchans = hw->wiphy->bands[band]->n_channels; 475 if (nchans <= 0) 476 return (NULL); 477 478 channels = hw->wiphy->bands[band]->channels; 479 for (i = 0; i < nchans; i++) { 480 if (channels[i].hw_value == c->ic_ieee) 481 return (&channels[i]); 482 } 483 484 return (NULL); 485 } 486 487 static struct linuxkpi_ieee80211_channel * 488 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 489 { 490 struct linuxkpi_ieee80211_channel *chan; 491 struct ieee80211_channel *c; 492 struct lkpi_hw *lhw; 493 494 chan = NULL; 495 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 496 c = ni->ni_chan; 497 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 498 c = ic->ic_bsschan; 499 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 500 c = ic->ic_curchan; 501 else 502 c = NULL; 503 504 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 505 lhw = ic->ic_softc; 506 chan = lkpi_find_lkpi80211_chan(lhw, c); 507 } 508 509 return (chan); 510 } 511 512 struct linuxkpi_ieee80211_channel * 513 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 514 { 515 enum nl80211_band band; 516 517 for (band = 0; band < NUM_NL80211_BANDS; band++) { 518 struct ieee80211_supported_band *supband; 519 struct linuxkpi_ieee80211_channel *channels; 520 int i; 521 522 supband = wiphy->bands[band]; 523 if (supband == NULL || supband->n_channels == 0) 524 continue; 525 526 channels = supband->channels; 527 for (i = 0; i < supband->n_channels; i++) { 528 if (channels[i].center_freq == freq) 529 return (&channels[i]); 530 } 531 } 532 533 return (NULL); 534 } 535 536 void 537 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 538 { 539 struct lkpi_hw *lhw; 540 struct ieee80211com *ic; 541 struct ieee80211vap *vap; 542 543 lhw = wiphy_priv(wiphy); 544 ic = lhw->ic; 545 546 /* 547 * If we haven't called ieee80211_ifattach() yet 548 * or there is no VAP, there are no scans to flush. 549 */ 550 if (ic == NULL || 551 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 552 return; 553 554 /* Should only happen on the current one? Not seen it late enough. */ 555 IEEE80211_LOCK(ic); 556 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 557 ieee80211_scan_flush(vap); 558 IEEE80211_UNLOCK(ic); 559 } 560 561 #ifdef TRY_HW_CRYPTO 562 static int 563 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 564 enum set_key_cmd cmd) 565 { 566 struct ieee80211com *ic; 567 struct lkpi_hw *lhw; 568 struct ieee80211_hw *hw; 569 struct lkpi_vif *lvif; 570 struct ieee80211_vif *vif; 571 struct ieee80211_sta *sta; 572 struct ieee80211_node *ni; 573 struct ieee80211_key_conf *kc; 574 int error; 575 576 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 577 578 ic = vap->iv_ic; 579 lhw = ic->ic_softc; 580 hw = LHW_TO_HW(lhw); 581 lvif = VAP_TO_LVIF(vap); 582 vif = LVIF_TO_VIF(lvif); 583 584 memset(&kc, 0, sizeof(kc)); 585 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 586 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 587 k->wk_cipher->ic_cipher, k->wk_keylen); 588 kc->keyidx = k->wk_keyix; 589 #if 0 590 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 591 #endif 592 atomic64_set(&kc->tx_pn, k->wk_keytsc); 593 kc->keylen = k->wk_keylen; 594 memcpy(kc->key, k->wk_key, k->wk_keylen); 595 596 switch (kc->cipher) { 597 case WLAN_CIPHER_SUITE_CCMP: 598 kc->iv_len = k->wk_cipher->ic_header; 599 kc->icv_len = k->wk_cipher->ic_trailer; 600 break; 601 case WLAN_CIPHER_SUITE_TKIP: 602 default: 603 IMPROVE(); 604 return (0); 605 }; 606 607 ni = vap->iv_bss; 608 sta = ieee80211_find_sta(vif, ni->ni_bssid); 609 if (sta != NULL) { 610 struct lkpi_sta *lsta; 611 612 lsta = STA_TO_LSTA(sta); 613 lsta->kc = kc; 614 } 615 616 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 617 if (error != 0) { 618 /* XXX-BZ leaking kc currently */ 619 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 620 return (0); 621 } else { 622 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 623 "flags %#10x\n", __func__, 624 kc->keyidx, kc->hw_key_idx, kc->flags); 625 return (1); 626 } 627 } 628 629 static int 630 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 631 { 632 633 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 634 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 635 } 636 static int 637 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 638 { 639 640 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 641 } 642 #endif 643 644 static u_int 645 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 646 { 647 struct netdev_hw_addr_list *mc_list; 648 struct netdev_hw_addr *addr; 649 650 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 651 __func__, arg, sdl, cnt)); 652 653 mc_list = arg; 654 /* If it is on the list already skip it. */ 655 netdev_hw_addr_list_for_each(addr, mc_list) { 656 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 657 return (0); 658 } 659 660 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 661 if (addr == NULL) 662 return (0); 663 664 INIT_LIST_HEAD(&addr->addr_list); 665 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 666 /* XXX this should be a netdev function? */ 667 list_add(&addr->addr_list, &mc_list->addr_list); 668 mc_list->count++; 669 670 #ifdef LINUXKPI_DEBUG_80211 671 if (linuxkpi_debug_80211 & D80211_TRACE) 672 printf("%s:%d: mc_list count %d: added %6D\n", 673 __func__, __LINE__, mc_list->count, addr->addr, ":"); 674 #endif 675 676 return (1); 677 } 678 679 static void 680 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 681 { 682 struct lkpi_hw *lhw; 683 struct ieee80211_hw *hw; 684 struct netdev_hw_addr_list mc_list; 685 struct list_head *le, *next; 686 struct netdev_hw_addr *addr; 687 struct ieee80211vap *vap; 688 u64 mc; 689 unsigned int changed_flags, total_flags; 690 691 lhw = ic->ic_softc; 692 693 if (lhw->ops->prepare_multicast == NULL || 694 lhw->ops->configure_filter == NULL) 695 return; 696 697 if (!lhw->update_mc && !force) 698 return; 699 700 changed_flags = total_flags = 0; 701 mc_list.count = 0; 702 INIT_LIST_HEAD(&mc_list.addr_list); 703 if (ic->ic_allmulti == 0) { 704 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 705 if_foreach_llmaddr(vap->iv_ifp, 706 lkpi_ic_update_mcast_copy, &mc_list); 707 } else { 708 changed_flags |= FIF_ALLMULTI; 709 } 710 711 hw = LHW_TO_HW(lhw); 712 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 713 /* 714 * XXX-BZ make sure to get this sorted what is a change, 715 * what gets all set; what was already set? 716 */ 717 total_flags = changed_flags; 718 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 719 720 #ifdef LINUXKPI_DEBUG_80211 721 if (linuxkpi_debug_80211 & D80211_TRACE) 722 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 723 __func__, changed_flags, mc_list.count, total_flags); 724 #endif 725 726 if (mc_list.count != 0) { 727 list_for_each_safe(le, next, &mc_list.addr_list) { 728 addr = list_entry(le, struct netdev_hw_addr, addr_list); 729 free(addr, M_LKPI80211); 730 mc_list.count--; 731 } 732 } 733 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 734 __func__, &mc_list, mc_list.count)); 735 } 736 737 static enum ieee80211_bss_changed 738 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 739 struct ieee80211vap *vap, const char *_f, int _l) 740 { 741 enum ieee80211_bss_changed bss_changed; 742 743 bss_changed = 0; 744 745 #ifdef LINUXKPI_DEBUG_80211 746 if (linuxkpi_debug_80211 & D80211_TRACE) 747 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 748 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 749 "sync_device_ts %u bss_changed %#08x\n", 750 __func__, __LINE__, _f, _l, 751 vif->bss_conf.assoc, vif->bss_conf.aid, 752 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 753 vif->bss_conf.sync_dtim_count, 754 (uintmax_t)vif->bss_conf.sync_tsf, 755 vif->bss_conf.sync_device_ts, 756 bss_changed); 757 #endif 758 759 if (vif->bss_conf.beacon_int != ni->ni_intval) { 760 vif->bss_conf.beacon_int = ni->ni_intval; 761 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 762 if (vif->bss_conf.beacon_int < 16) 763 vif->bss_conf.beacon_int = 16; 764 bss_changed |= BSS_CHANGED_BEACON_INT; 765 } 766 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 767 vap->iv_dtim_period > 0) { 768 vif->bss_conf.dtim_period = vap->iv_dtim_period; 769 bss_changed |= BSS_CHANGED_BEACON_INFO; 770 } 771 772 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 773 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 774 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 775 776 #ifdef LINUXKPI_DEBUG_80211 777 if (linuxkpi_debug_80211 & D80211_TRACE) 778 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 779 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 780 "sync_device_ts %u bss_changed %#08x\n", 781 __func__, __LINE__, _f, _l, 782 vif->bss_conf.assoc, vif->bss_conf.aid, 783 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 784 vif->bss_conf.sync_dtim_count, 785 (uintmax_t)vif->bss_conf.sync_tsf, 786 vif->bss_conf.sync_device_ts, 787 bss_changed); 788 #endif 789 790 return (bss_changed); 791 } 792 793 static void 794 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 795 { 796 struct ieee80211_hw *hw; 797 int error; 798 799 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 800 return; 801 802 hw = LHW_TO_HW(lhw); 803 804 IEEE80211_UNLOCK(lhw->ic); 805 LKPI_80211_LHW_LOCK(lhw); 806 /* Need to cancel the scan. */ 807 lkpi_80211_mo_cancel_hw_scan(hw, vif); 808 809 /* Need to make sure we see ieee80211_scan_completed. */ 810 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 811 LKPI_80211_LHW_UNLOCK(lhw); 812 IEEE80211_LOCK(lhw->ic); 813 814 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 815 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 816 __func__, error, lhw, vif); 817 } 818 819 static void 820 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 821 { 822 struct lkpi_hw *lhw; 823 int error; 824 bool old; 825 826 old = hw->conf.flags & IEEE80211_CONF_IDLE; 827 if (old == new) 828 return; 829 830 hw->conf.flags ^= IEEE80211_CONF_IDLE; 831 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 832 if (error != 0 && error != EOPNOTSUPP) { 833 lhw = HW_TO_LHW(hw); 834 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 835 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 836 } 837 } 838 839 static void 840 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 841 struct lkpi_hw *lhw) 842 { 843 sta->aid = 0; 844 if (vif->bss_conf.assoc) { 845 struct ieee80211_hw *hw; 846 enum ieee80211_bss_changed changed; 847 848 lhw->update_mc = true; 849 lkpi_update_mcast_filter(lhw->ic, true); 850 851 changed = 0; 852 vif->bss_conf.assoc = false; 853 vif->bss_conf.aid = 0; 854 changed |= BSS_CHANGED_ASSOC; 855 /* 856 * This will remove the sta from firmware for iwlwifi. 857 * So confusing that they use state and flags and ... ^%$%#%$^. 858 */ 859 IMPROVE(); 860 hw = LHW_TO_HW(lhw); 861 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 862 changed); 863 864 lkpi_hw_conf_idle(hw, true); 865 } 866 } 867 868 static void 869 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 870 bool dequeue_seen, bool no_emptyq) 871 { 872 struct lkpi_txq *ltxq; 873 int tid; 874 875 /* Wake up all queues to know they are allocated in the driver. */ 876 for (tid = 0; tid < nitems(sta->txq); tid++) { 877 878 if (tid == IEEE80211_NUM_TIDS) { 879 IMPROVE("station specific?"); 880 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 881 continue; 882 } else if (tid >= hw->queues) 883 continue; 884 885 if (sta->txq[tid] == NULL) 886 continue; 887 888 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 889 if (dequeue_seen && !ltxq->seen_dequeue) 890 continue; 891 892 if (no_emptyq && skb_queue_empty(<xq->skbq)) 893 continue; 894 895 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 896 } 897 } 898 899 /* -------------------------------------------------------------------------- */ 900 901 static int 902 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 903 { 904 905 return (0); 906 } 907 908 /* lkpi_iv_newstate() handles the stop scan case generally. */ 909 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 910 911 static int 912 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 913 { 914 struct linuxkpi_ieee80211_channel *chan; 915 struct ieee80211_chanctx_conf *conf; 916 struct lkpi_hw *lhw; 917 struct ieee80211_hw *hw; 918 struct lkpi_vif *lvif; 919 struct ieee80211_vif *vif; 920 struct ieee80211_node *ni; 921 struct lkpi_sta *lsta; 922 struct ieee80211_sta *sta; 923 enum ieee80211_bss_changed bss_changed; 924 struct ieee80211_prep_tx_info prep_tx_info; 925 uint32_t changed; 926 int error; 927 928 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 929 if (chan == NULL) { 930 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 931 return (ESRCH); 932 } 933 934 lhw = vap->iv_ic->ic_softc; 935 hw = LHW_TO_HW(lhw); 936 lvif = VAP_TO_LVIF(vap); 937 vif = LVIF_TO_VIF(lvif); 938 939 ni = ieee80211_ref_node(vap->iv_bss); 940 941 IEEE80211_UNLOCK(vap->iv_ic); 942 943 /* Add chanctx (or if exists, change it). */ 944 if (vif->chanctx_conf != NULL) { 945 conf = vif->chanctx_conf; 946 IMPROVE("diff changes for changed, working on live copy, rcu"); 947 } else { 948 /* Keep separate alloc as in Linux this is rcu managed? */ 949 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 950 M_LKPI80211, M_WAITOK | M_ZERO); 951 } 952 953 conf->rx_chains_dynamic = 1; 954 conf->rx_chains_static = 1; 955 conf->radar_enabled = 956 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 957 conf->def.chan = chan; 958 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 959 conf->def.center_freq1 = chan->center_freq; 960 conf->def.center_freq2 = 0; 961 /* Responder ... */ 962 conf->min_def.chan = chan; 963 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 964 conf->min_def.center_freq1 = chan->center_freq; 965 conf->min_def.center_freq2 = 0; 966 IMPROVE("currently 20_NOHT only"); 967 968 error = 0; 969 if (vif->chanctx_conf != NULL) { 970 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 971 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 972 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 973 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 974 lkpi_80211_mo_change_chanctx(hw, conf, changed); 975 } else { 976 error = lkpi_80211_mo_add_chanctx(hw, conf); 977 if (error == 0 || error == EOPNOTSUPP) { 978 vif->bss_conf.chandef.chan = conf->def.chan; 979 vif->bss_conf.chandef.width = conf->def.width; 980 vif->bss_conf.chandef.center_freq1 = 981 conf->def.center_freq1; 982 vif->bss_conf.chandef.center_freq2 = 983 conf->def.center_freq2; 984 } else { 985 goto out; 986 } 987 /* Assign vif chanctx. */ 988 if (error == 0) 989 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 990 if (error == EOPNOTSUPP) 991 error = 0; 992 if (error != 0) { 993 lkpi_80211_mo_remove_chanctx(hw, conf); 994 free(conf, M_LKPI80211); 995 goto out; 996 } 997 } 998 IMPROVE("update radiotap chan fields too"); 999 1000 /* Set bss info (bss_info_changed). */ 1001 bss_changed = 0; 1002 vif->bss_conf.bssid = ni->ni_bssid; 1003 bss_changed |= BSS_CHANGED_BSSID; 1004 vif->bss_conf.txpower = ni->ni_txpower; 1005 bss_changed |= BSS_CHANGED_TXPOWER; 1006 vif->bss_conf.idle = false; 1007 bss_changed |= BSS_CHANGED_IDLE; 1008 1009 /* Should almost assert it is this. */ 1010 vif->bss_conf.assoc = false; 1011 vif->bss_conf.aid = 0; 1012 1013 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1014 1015 /* RATES */ 1016 IMPROVE("bss info: not all needs to come now and rates are missing"); 1017 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1018 1019 /* 1020 * This is a bandaid for now. If we went through (*iv_update_bss)() 1021 * and then removed the lsta we end up here without a lsta and have 1022 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1023 * would normally do. 1024 * XXX-BZ I do not like this but currently we have no good way of 1025 * intercepting the bss swap and state changes and packets going out 1026 * workflow so live with this. It is a compat layer after all. 1027 */ 1028 if (ni->ni_drv_data == NULL) { 1029 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1030 if (lsta == NULL) { 1031 error = ENOMEM; 1032 goto out; 1033 } 1034 lsta->ni = ieee80211_ref_node(ni); 1035 } else { 1036 lsta = ni->ni_drv_data; 1037 } 1038 1039 /* Insert the [l]sta into the list of known stations. */ 1040 LKPI_80211_LVIF_LOCK(lvif); 1041 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1042 LKPI_80211_LVIF_UNLOCK(lvif); 1043 1044 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1045 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1046 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1047 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1048 sta = LSTA_TO_STA(lsta); 1049 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1050 if (error != 0) { 1051 IMPROVE("do we need to undo the chan ctx?"); 1052 goto out; 1053 } 1054 #if 0 1055 lsta->added_to_drv = true; /* mo manages. */ 1056 #endif 1057 1058 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1059 1060 /* 1061 * Wakeup all queues now that sta is there so we have as much time to 1062 * possibly prepare the queue in the driver to be ready for the 1st 1063 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1064 * is no guarantee or way to check. 1065 * XXX-BZ and by now we know that this does not work on all drivers 1066 * for all queues. 1067 */ 1068 lkpi_wake_tx_queues(hw, sta, false, false); 1069 1070 /* Start mgd_prepare_tx. */ 1071 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1072 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1073 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1074 lsta->in_mgd = true; 1075 1076 /* 1077 * What is going to happen next: 1078 * - <twiddle> .. we should end up in "auth_to_assoc" 1079 * - event_callback 1080 * - update sta_state (NONE to AUTH) 1081 * - mgd_complete_tx 1082 * (ideally we'd do that on a callback for something else ...) 1083 */ 1084 1085 out: 1086 IEEE80211_LOCK(vap->iv_ic); 1087 if (ni != NULL) 1088 ieee80211_free_node(ni); 1089 return (error); 1090 } 1091 1092 static int 1093 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1094 { 1095 struct lkpi_hw *lhw; 1096 struct ieee80211_hw *hw; 1097 struct lkpi_vif *lvif; 1098 struct ieee80211_vif *vif; 1099 struct ieee80211_node *ni; 1100 struct lkpi_sta *lsta; 1101 struct ieee80211_sta *sta; 1102 struct ieee80211_prep_tx_info prep_tx_info; 1103 int error; 1104 1105 lhw = vap->iv_ic->ic_softc; 1106 hw = LHW_TO_HW(lhw); 1107 lvif = VAP_TO_LVIF(vap); 1108 vif = LVIF_TO_VIF(lvif); 1109 1110 /* Keep ni around. */ 1111 ni = ieee80211_ref_node(vap->iv_bss); 1112 lsta = ni->ni_drv_data; 1113 sta = LSTA_TO_STA(lsta); 1114 1115 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1116 1117 IEEE80211_UNLOCK(vap->iv_ic); 1118 1119 /* flush, drop. */ 1120 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1121 1122 /* Wake tx queues to get packet(s) out. */ 1123 lkpi_wake_tx_queues(hw, sta, true, true); 1124 1125 /* flush, no drop */ 1126 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1127 1128 /* End mgd_complete_tx. */ 1129 if (lsta->in_mgd) { 1130 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1131 prep_tx_info.success = false; 1132 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1133 lsta->in_mgd = false; 1134 } 1135 1136 /* sync_rx_queues */ 1137 lkpi_80211_mo_sync_rx_queues(hw); 1138 1139 /* sta_pre_rcu_remove */ 1140 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1141 1142 /* Take the station down. */ 1143 1144 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1145 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1146 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1147 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1148 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1149 if (error != 0) { 1150 IMPROVE("do we need to undo the chan ctx?"); 1151 goto out; 1152 } 1153 #if 0 1154 lsta->added_to_drv = false; /* mo manages. */ 1155 #endif 1156 1157 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1158 1159 lkpi_lsta_remove(lsta, lvif); 1160 1161 /* conf_tx */ 1162 1163 /* Take the chan ctx down. */ 1164 if (vif->chanctx_conf != NULL) { 1165 struct ieee80211_chanctx_conf *conf; 1166 1167 conf = vif->chanctx_conf; 1168 /* Remove vif context. */ 1169 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1170 /* NB: vif->chanctx_conf is NULL now. */ 1171 1172 /* Remove chan ctx. */ 1173 lkpi_80211_mo_remove_chanctx(hw, conf); 1174 free(conf, M_LKPI80211); 1175 } 1176 1177 out: 1178 IEEE80211_LOCK(vap->iv_ic); 1179 if (ni != NULL) 1180 ieee80211_free_node(ni); 1181 return (error); 1182 } 1183 1184 static int 1185 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1186 { 1187 int error; 1188 1189 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1190 if (error == 0) 1191 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1192 return (error); 1193 } 1194 1195 static int 1196 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1197 { 1198 struct lkpi_hw *lhw; 1199 struct ieee80211_hw *hw; 1200 struct lkpi_vif *lvif; 1201 struct ieee80211_vif *vif; 1202 struct ieee80211_node *ni; 1203 struct lkpi_sta *lsta; 1204 struct ieee80211_sta *sta; 1205 struct ieee80211_prep_tx_info prep_tx_info; 1206 int error; 1207 1208 lhw = vap->iv_ic->ic_softc; 1209 hw = LHW_TO_HW(lhw); 1210 lvif = VAP_TO_LVIF(vap); 1211 vif = LVIF_TO_VIF(lvif); 1212 1213 IEEE80211_UNLOCK(vap->iv_ic); 1214 ni = NULL; 1215 1216 /* Finish auth. */ 1217 IMPROVE("event callback"); 1218 1219 /* Update sta_state (NONE to AUTH). */ 1220 ni = ieee80211_ref_node(vap->iv_bss); 1221 lsta = ni->ni_drv_data; 1222 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1223 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1224 "NONE: %#x\n", __func__, lsta, lsta->state)); 1225 sta = LSTA_TO_STA(lsta); 1226 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1227 if (error != 0) 1228 goto out; 1229 1230 /* End mgd_complete_tx. */ 1231 if (lsta->in_mgd) { 1232 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1233 prep_tx_info.success = true; 1234 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1235 lsta->in_mgd = false; 1236 } 1237 1238 /* Now start assoc. */ 1239 1240 /* Start mgd_prepare_tx. */ 1241 if (!lsta->in_mgd) { 1242 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1243 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1244 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1245 lsta->in_mgd = true; 1246 } 1247 1248 /* Wake tx queue to get packet out. */ 1249 lkpi_wake_tx_queues(hw, sta, true, true); 1250 1251 /* 1252 * <twiddle> .. we end up in "assoc_to_run" 1253 * - update sta_state (AUTH to ASSOC) 1254 * - conf_tx [all] 1255 * - bss_info_changed (assoc, aid, ssid, ..) 1256 * - change_chanctx (if needed) 1257 * - event_callback 1258 * - mgd_complete_tx 1259 */ 1260 1261 out: 1262 IEEE80211_LOCK(vap->iv_ic); 1263 if (ni != NULL) 1264 ieee80211_free_node(ni); 1265 return (error); 1266 } 1267 1268 /* auth_to_auth, assoc_to_assoc. */ 1269 static int 1270 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1271 { 1272 struct lkpi_hw *lhw; 1273 struct ieee80211_hw *hw; 1274 struct lkpi_vif *lvif; 1275 struct ieee80211_vif *vif; 1276 struct ieee80211_node *ni; 1277 struct lkpi_sta *lsta; 1278 struct ieee80211_prep_tx_info prep_tx_info; 1279 1280 lhw = vap->iv_ic->ic_softc; 1281 hw = LHW_TO_HW(lhw); 1282 lvif = VAP_TO_LVIF(vap); 1283 vif = LVIF_TO_VIF(lvif); 1284 1285 ni = ieee80211_ref_node(vap->iv_bss); 1286 1287 IEEE80211_UNLOCK(vap->iv_ic); 1288 lsta = ni->ni_drv_data; 1289 1290 IMPROVE("event callback?"); 1291 1292 /* End mgd_complete_tx. */ 1293 if (lsta->in_mgd) { 1294 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1295 prep_tx_info.success = false; 1296 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1297 lsta->in_mgd = false; 1298 } 1299 1300 /* Now start assoc. */ 1301 1302 /* Start mgd_prepare_tx. */ 1303 if (!lsta->in_mgd) { 1304 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1305 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1306 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1307 lsta->in_mgd = true; 1308 } 1309 1310 IEEE80211_LOCK(vap->iv_ic); 1311 if (ni != NULL) 1312 ieee80211_free_node(ni); 1313 1314 return (0); 1315 } 1316 1317 static int 1318 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1319 { 1320 struct lkpi_hw *lhw; 1321 struct ieee80211_hw *hw; 1322 struct lkpi_vif *lvif; 1323 struct ieee80211_vif *vif; 1324 struct ieee80211_node *ni; 1325 struct lkpi_sta *lsta; 1326 struct ieee80211_sta *sta; 1327 struct ieee80211_prep_tx_info prep_tx_info; 1328 enum ieee80211_bss_changed bss_changed; 1329 int error; 1330 1331 lhw = vap->iv_ic->ic_softc; 1332 hw = LHW_TO_HW(lhw); 1333 lvif = VAP_TO_LVIF(vap); 1334 vif = LVIF_TO_VIF(lvif); 1335 1336 /* Keep ni around. */ 1337 ni = ieee80211_ref_node(vap->iv_bss); 1338 lsta = ni->ni_drv_data; 1339 sta = LSTA_TO_STA(lsta); 1340 1341 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1342 1343 IEEE80211_UNLOCK(vap->iv_ic); 1344 1345 /* flush, drop. */ 1346 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1347 1348 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1349 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1350 !lsta->in_mgd) { 1351 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1352 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1353 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1354 lsta->in_mgd = true; 1355 } 1356 1357 IEEE80211_LOCK(vap->iv_ic); 1358 1359 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1360 error = lvif->iv_newstate(vap, nstate, arg); 1361 if (error != 0) 1362 goto outni; 1363 1364 IEEE80211_UNLOCK(vap->iv_ic); 1365 1366 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1367 1368 /* Wake tx queues to get packet(s) out. */ 1369 lkpi_wake_tx_queues(hw, sta, true, true); 1370 1371 /* flush, no drop */ 1372 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1373 1374 /* End mgd_complete_tx. */ 1375 if (lsta->in_mgd) { 1376 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1377 prep_tx_info.success = false; 1378 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1379 lsta->in_mgd = false; 1380 } 1381 1382 /* sync_rx_queues */ 1383 lkpi_80211_mo_sync_rx_queues(hw); 1384 1385 /* sta_pre_rcu_remove */ 1386 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1387 1388 /* Take the station down. */ 1389 1390 /* Update sta and change state (from AUTH) to NONE. */ 1391 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1392 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1393 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1394 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1395 if (error != 0) 1396 goto out; 1397 1398 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1399 1400 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1401 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1402 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1403 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1404 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1405 if (error != 0) { 1406 IMPROVE("do we need to undo the chan ctx?"); 1407 goto out; 1408 } 1409 #if 0 1410 lsta->added_to_drv = false; /* mo manages. */ 1411 #endif 1412 1413 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1414 1415 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1416 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1417 lkpi_disassoc(sta, vif, lhw); 1418 1419 IMPROVE("Any bss_info changes to announce?"); 1420 bss_changed = 0; 1421 vif->bss_conf.qos = 0; 1422 bss_changed |= BSS_CHANGED_QOS; 1423 vif->bss_conf.ssid_len = 0; 1424 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1425 bss_changed |= BSS_CHANGED_BSSID; 1426 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1427 1428 lkpi_lsta_remove(lsta, lvif); 1429 1430 /* conf_tx */ 1431 1432 /* Take the chan ctx down. */ 1433 if (vif->chanctx_conf != NULL) { 1434 struct ieee80211_chanctx_conf *conf; 1435 1436 conf = vif->chanctx_conf; 1437 /* Remove vif context. */ 1438 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1439 /* NB: vif->chanctx_conf is NULL now. */ 1440 1441 /* Remove chan ctx. */ 1442 lkpi_80211_mo_remove_chanctx(hw, conf); 1443 free(conf, M_LKPI80211); 1444 } 1445 1446 error = EALREADY; 1447 out: 1448 IEEE80211_LOCK(vap->iv_ic); 1449 outni: 1450 if (ni != NULL) 1451 ieee80211_free_node(ni); 1452 return (error); 1453 } 1454 1455 static int 1456 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1457 { 1458 int error; 1459 1460 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1461 if (error != 0 && error != EALREADY) 1462 return (error); 1463 1464 /* At this point iv_bss is long a new node! */ 1465 1466 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1467 return (error); 1468 } 1469 1470 static int 1471 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1472 { 1473 int error; 1474 1475 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1476 return (error); 1477 } 1478 1479 static int 1480 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1481 { 1482 int error; 1483 1484 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1485 return (error); 1486 } 1487 1488 static int 1489 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1490 { 1491 struct lkpi_hw *lhw; 1492 struct ieee80211_hw *hw; 1493 struct lkpi_vif *lvif; 1494 struct ieee80211_vif *vif; 1495 struct ieee80211_node *ni; 1496 struct lkpi_sta *lsta; 1497 struct ieee80211_sta *sta; 1498 struct ieee80211_prep_tx_info prep_tx_info; 1499 enum ieee80211_bss_changed bss_changed; 1500 int error; 1501 1502 lhw = vap->iv_ic->ic_softc; 1503 hw = LHW_TO_HW(lhw); 1504 lvif = VAP_TO_LVIF(vap); 1505 vif = LVIF_TO_VIF(lvif); 1506 1507 IEEE80211_UNLOCK(vap->iv_ic); 1508 ni = NULL; 1509 1510 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1511 "and to lesser extend ieee80211_notify_node_join"); 1512 1513 /* Finish assoc. */ 1514 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1515 ni = ieee80211_ref_node(vap->iv_bss); 1516 lsta = ni->ni_drv_data; 1517 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1518 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1519 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1520 sta = LSTA_TO_STA(lsta); 1521 sta->aid = IEEE80211_NODE_AID(ni); 1522 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1523 if (error != 0) 1524 goto out; 1525 1526 IMPROVE("wme / conf_tx [all]"); 1527 1528 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1529 bss_changed = 0; 1530 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1531 vif->bss_conf.assoc = true; 1532 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1533 bss_changed |= BSS_CHANGED_ASSOC; 1534 } 1535 /* We set SSID but this is not BSSID! */ 1536 vif->bss_conf.ssid_len = ni->ni_esslen; 1537 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1538 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1539 vif->bss_conf.use_short_preamble) { 1540 vif->bss_conf.use_short_preamble ^= 1; 1541 /* bss_changed |= BSS_CHANGED_??? */ 1542 } 1543 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1544 vif->bss_conf.use_short_slot) { 1545 vif->bss_conf.use_short_slot ^= 1; 1546 /* bss_changed |= BSS_CHANGED_??? */ 1547 } 1548 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1549 vif->bss_conf.qos) { 1550 vif->bss_conf.qos ^= 1; 1551 bss_changed |= BSS_CHANGED_QOS; 1552 } 1553 1554 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1555 1556 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1557 1558 /* - change_chanctx (if needed) 1559 * - event_callback 1560 */ 1561 1562 /* End mgd_complete_tx. */ 1563 if (lsta->in_mgd) { 1564 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1565 prep_tx_info.success = true; 1566 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1567 lsta->in_mgd = false; 1568 } 1569 1570 lkpi_hw_conf_idle(hw, false); 1571 1572 /* 1573 * And then: 1574 * - (more packets)? 1575 * - set_key 1576 * - set_default_unicast_key 1577 * - set_key (?) 1578 * - ipv6_addr_change (?) 1579 */ 1580 /* Prepare_multicast && configure_filter. */ 1581 lhw->update_mc = true; 1582 lkpi_update_mcast_filter(vap->iv_ic, true); 1583 1584 if (!ieee80211_node_is_authorized(ni)) { 1585 IMPROVE("net80211 does not consider node authorized"); 1586 } 1587 1588 /* Update sta_state (ASSOC to AUTHORIZED). */ 1589 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1590 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1591 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1592 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1593 if (error != 0) { 1594 IMPROVE("undo some changes?"); 1595 goto out; 1596 } 1597 1598 /* - drv_config (?) 1599 * - bss_info_changed 1600 * - set_rekey_data (?) 1601 * 1602 * And now we should be passing packets. 1603 */ 1604 IMPROVE("Need that bssid setting, and the keys"); 1605 1606 bss_changed = 0; 1607 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1608 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1609 1610 out: 1611 IEEE80211_LOCK(vap->iv_ic); 1612 if (ni != NULL) 1613 ieee80211_free_node(ni); 1614 return (error); 1615 } 1616 1617 static int 1618 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1619 { 1620 int error; 1621 1622 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1623 if (error == 0) 1624 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1625 return (error); 1626 } 1627 1628 static int 1629 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1630 { 1631 struct lkpi_hw *lhw; 1632 struct ieee80211_hw *hw; 1633 struct lkpi_vif *lvif; 1634 struct ieee80211_vif *vif; 1635 struct ieee80211_node *ni; 1636 struct lkpi_sta *lsta; 1637 struct ieee80211_sta *sta; 1638 struct ieee80211_prep_tx_info prep_tx_info; 1639 #if 0 1640 enum ieee80211_bss_changed bss_changed; 1641 #endif 1642 int error; 1643 1644 lhw = vap->iv_ic->ic_softc; 1645 hw = LHW_TO_HW(lhw); 1646 lvif = VAP_TO_LVIF(vap); 1647 vif = LVIF_TO_VIF(lvif); 1648 1649 /* Keep ni around. */ 1650 ni = ieee80211_ref_node(vap->iv_bss); 1651 lsta = ni->ni_drv_data; 1652 sta = LSTA_TO_STA(lsta); 1653 1654 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1655 1656 IEEE80211_UNLOCK(vap->iv_ic); 1657 1658 /* flush, drop. */ 1659 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1660 1661 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1662 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1663 !lsta->in_mgd) { 1664 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1665 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1666 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1667 lsta->in_mgd = true; 1668 } 1669 1670 IEEE80211_LOCK(vap->iv_ic); 1671 1672 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1673 error = lvif->iv_newstate(vap, nstate, arg); 1674 if (error != 0) 1675 goto outni; 1676 1677 IEEE80211_UNLOCK(vap->iv_ic); 1678 1679 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1680 1681 /* Wake tx queues to get packet(s) out. */ 1682 lkpi_wake_tx_queues(hw, sta, true, true); 1683 1684 /* flush, no drop */ 1685 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1686 1687 /* End mgd_complete_tx. */ 1688 if (lsta->in_mgd) { 1689 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1690 prep_tx_info.success = false; 1691 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1692 lsta->in_mgd = false; 1693 } 1694 1695 #if 0 1696 /* sync_rx_queues */ 1697 lkpi_80211_mo_sync_rx_queues(hw); 1698 1699 /* sta_pre_rcu_remove */ 1700 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1701 #endif 1702 1703 /* Take the station down. */ 1704 1705 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1706 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1707 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1708 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1709 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1710 if (error != 0) 1711 goto out; 1712 1713 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1714 1715 /* Update sta_state (ASSOC to AUTH). */ 1716 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1717 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1718 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1719 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1720 if (error != 0) 1721 goto out; 1722 1723 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1724 1725 #if 0 1726 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1727 lkpi_disassoc(sta, vif, lhw); 1728 #endif 1729 1730 error = EALREADY; 1731 out: 1732 IEEE80211_LOCK(vap->iv_ic); 1733 outni: 1734 if (ni != NULL) 1735 ieee80211_free_node(ni); 1736 return (error); 1737 } 1738 1739 static int 1740 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1741 { 1742 struct lkpi_hw *lhw; 1743 struct ieee80211_hw *hw; 1744 struct lkpi_vif *lvif; 1745 struct ieee80211_vif *vif; 1746 struct ieee80211_node *ni; 1747 struct lkpi_sta *lsta; 1748 struct ieee80211_sta *sta; 1749 struct ieee80211_prep_tx_info prep_tx_info; 1750 enum ieee80211_bss_changed bss_changed; 1751 int error; 1752 1753 lhw = vap->iv_ic->ic_softc; 1754 hw = LHW_TO_HW(lhw); 1755 lvif = VAP_TO_LVIF(vap); 1756 vif = LVIF_TO_VIF(lvif); 1757 1758 /* Keep ni around. */ 1759 ni = ieee80211_ref_node(vap->iv_bss); 1760 lsta = ni->ni_drv_data; 1761 sta = LSTA_TO_STA(lsta); 1762 1763 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1764 1765 IEEE80211_UNLOCK(vap->iv_ic); 1766 1767 /* flush, drop. */ 1768 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1769 1770 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1771 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1772 !lsta->in_mgd) { 1773 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1774 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1775 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1776 lsta->in_mgd = true; 1777 } 1778 1779 IEEE80211_LOCK(vap->iv_ic); 1780 1781 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1782 error = lvif->iv_newstate(vap, nstate, arg); 1783 if (error != 0) 1784 goto outni; 1785 1786 IEEE80211_UNLOCK(vap->iv_ic); 1787 1788 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1789 1790 /* Wake tx queues to get packet(s) out. */ 1791 lkpi_wake_tx_queues(hw, sta, true, true); 1792 1793 /* flush, no drop */ 1794 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1795 1796 /* End mgd_complete_tx. */ 1797 if (lsta->in_mgd) { 1798 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1799 prep_tx_info.success = false; 1800 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1801 lsta->in_mgd = false; 1802 } 1803 1804 /* sync_rx_queues */ 1805 lkpi_80211_mo_sync_rx_queues(hw); 1806 1807 /* sta_pre_rcu_remove */ 1808 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1809 1810 /* Take the station down. */ 1811 1812 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1813 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1814 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1815 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1816 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1817 if (error != 0) 1818 goto out; 1819 1820 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1821 1822 /* Update sta_state (ASSOC to AUTH). */ 1823 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1824 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1825 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1826 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1827 if (error != 0) 1828 goto out; 1829 1830 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1831 1832 /* Update sta and change state (from AUTH) to NONE. */ 1833 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1834 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1835 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1836 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1837 if (error != 0) 1838 goto out; 1839 1840 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1841 1842 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1843 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1844 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1845 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1846 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1847 if (error != 0) { 1848 IMPROVE("do we need to undo the chan ctx?"); 1849 goto out; 1850 } 1851 #if 0 1852 lsta->added_to_drv = false; /* mo manages. */ 1853 #endif 1854 1855 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1856 1857 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1858 /* 1859 * One would expect this to happen when going off AUTHORIZED. 1860 * See comment there; removes the sta from fw. 1861 */ 1862 lkpi_disassoc(sta, vif, lhw); 1863 1864 IMPROVE("Any bss_info changes to announce?"); 1865 bss_changed = 0; 1866 vif->bss_conf.qos = 0; 1867 bss_changed |= BSS_CHANGED_QOS; 1868 vif->bss_conf.ssid_len = 0; 1869 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1870 bss_changed |= BSS_CHANGED_BSSID; 1871 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1872 1873 lkpi_lsta_remove(lsta, lvif); 1874 1875 /* conf_tx */ 1876 1877 /* Take the chan ctx down. */ 1878 if (vif->chanctx_conf != NULL) { 1879 struct ieee80211_chanctx_conf *conf; 1880 1881 conf = vif->chanctx_conf; 1882 /* Remove vif context. */ 1883 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1884 /* NB: vif->chanctx_conf is NULL now. */ 1885 1886 /* Remove chan ctx. */ 1887 lkpi_80211_mo_remove_chanctx(hw, conf); 1888 free(conf, M_LKPI80211); 1889 } 1890 1891 error = EALREADY; 1892 out: 1893 IEEE80211_LOCK(vap->iv_ic); 1894 outni: 1895 if (ni != NULL) 1896 ieee80211_free_node(ni); 1897 return (error); 1898 } 1899 1900 static int 1901 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1902 { 1903 1904 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1905 } 1906 1907 static int 1908 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1909 { 1910 int error; 1911 1912 error = lkpi_sta_run_to_init(vap, nstate, arg); 1913 if (error != 0 && error != EALREADY) 1914 return (error); 1915 1916 /* At this point iv_bss is long a new node! */ 1917 1918 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1919 return (error); 1920 } 1921 1922 /* -------------------------------------------------------------------------- */ 1923 1924 /* 1925 * The matches the documented state changes in net80211::sta_newstate(). 1926 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1927 * there are "invalid" (so there is a room for failure here). 1928 */ 1929 struct fsm_state { 1930 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1931 enum ieee80211_state ostate; 1932 enum ieee80211_state nstate; 1933 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1934 } sta_state_fsm[] = { 1935 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1936 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1937 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1938 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1939 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1940 1941 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1942 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1943 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1944 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1945 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1946 1947 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1948 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1949 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1950 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1951 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1952 1953 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1954 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1955 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1956 1957 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1958 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1959 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1960 1961 /* Dummy at the end without handler. */ 1962 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1963 }; 1964 1965 static int 1966 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1967 { 1968 struct ieee80211com *ic; 1969 struct lkpi_hw *lhw; 1970 struct lkpi_vif *lvif; 1971 struct ieee80211_vif *vif; 1972 struct fsm_state *s; 1973 enum ieee80211_state ostate; 1974 int error; 1975 1976 ic = vap->iv_ic; 1977 IEEE80211_LOCK_ASSERT(ic); 1978 ostate = vap->iv_state; 1979 1980 #ifdef LINUXKPI_DEBUG_80211 1981 if (linuxkpi_debug_80211 & D80211_TRACE) 1982 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1983 __func__, __LINE__, vap, nstate, arg); 1984 #endif 1985 1986 if (vap->iv_opmode == IEEE80211_M_STA) { 1987 1988 lhw = ic->ic_softc; 1989 lvif = VAP_TO_LVIF(vap); 1990 vif = LVIF_TO_VIF(lvif); 1991 1992 /* No need to replicate this in most state handlers. */ 1993 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1994 lkpi_stop_hw_scan(lhw, vif); 1995 1996 s = sta_state_fsm; 1997 1998 } else { 1999 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2000 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2001 return (ENOSYS); 2002 } 2003 2004 error = 0; 2005 for (; s->handler != NULL; s++) { 2006 if (ostate == s->ostate && nstate == s->nstate) { 2007 #ifdef LINUXKPI_DEBUG_80211 2008 if (linuxkpi_debug_80211 & D80211_TRACE) 2009 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2010 " %d (%s): arg %d.\n", __func__, 2011 ostate, ieee80211_state_name[ostate], 2012 nstate, ieee80211_state_name[nstate], arg); 2013 #endif 2014 error = s->handler(vap, nstate, arg); 2015 break; 2016 } 2017 } 2018 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2019 2020 if (s->handler == NULL) { 2021 IMPROVE("turn this into a KASSERT\n"); 2022 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2023 "%d (%s) -> %d (%s)\n", __func__, 2024 ostate, ieee80211_state_name[ostate], 2025 nstate, ieee80211_state_name[nstate]); 2026 return (ENOSYS); 2027 } 2028 2029 if (error == EALREADY) { 2030 #ifdef LINUXKPI_DEBUG_80211 2031 if (linuxkpi_debug_80211 & D80211_TRACE) 2032 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2033 "%d (%s): iv_newstate already handled: %d.\n", 2034 __func__, ostate, ieee80211_state_name[ostate], 2035 nstate, ieee80211_state_name[nstate], error); 2036 #endif 2037 return (0); 2038 } 2039 2040 if (error != 0) { 2041 /* XXX-BZ currently expected so ignore. */ 2042 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2043 "%d (%s) -> %d (%s)\n", __func__, error, 2044 ostate, ieee80211_state_name[ostate], 2045 nstate, ieee80211_state_name[nstate]); 2046 /* return (error); */ 2047 } 2048 2049 #ifdef LINUXKPI_DEBUG_80211 2050 if (linuxkpi_debug_80211 & D80211_TRACE) 2051 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2052 "calling net80211 parent\n", 2053 __func__, __LINE__, vap, nstate, arg); 2054 #endif 2055 2056 return (lvif->iv_newstate(vap, nstate, arg)); 2057 } 2058 2059 /* -------------------------------------------------------------------------- */ 2060 2061 /* 2062 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2063 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2064 * new node without us knowing and thus our ni/lsta are out of sync. 2065 */ 2066 static struct ieee80211_node * 2067 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2068 { 2069 struct lkpi_vif *lvif; 2070 struct ieee80211_node *obss; 2071 struct lkpi_sta *lsta; 2072 struct ieee80211_sta *sta; 2073 2074 obss = vap->iv_bss; 2075 2076 #ifdef LINUXKPI_DEBUG_80211 2077 if (linuxkpi_debug_80211 & D80211_TRACE) 2078 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2079 "ni %p ni_drv_data %p\n", __func__, 2080 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2081 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2082 #endif 2083 2084 /* Nothing to copy from. Just return. */ 2085 if (obss == NULL || obss->ni_drv_data == NULL) 2086 goto out; 2087 2088 /* Nothing to copy to. Just return. */ 2089 IMPROVE("clearing the obss might still be needed?"); 2090 if (ni == NULL) 2091 goto out; 2092 2093 /* Nothing changed? panic? */ 2094 if (obss == ni) 2095 goto out; 2096 2097 lsta = obss->ni_drv_data; 2098 obss->ni_drv_data = ni->ni_drv_data; 2099 ni->ni_drv_data = lsta; 2100 if (lsta != NULL) { 2101 lsta->ni = ni; 2102 sta = LSTA_TO_STA(lsta); 2103 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2104 } 2105 lsta = obss->ni_drv_data; 2106 if (lsta != NULL) { 2107 lsta->ni = obss; 2108 sta = LSTA_TO_STA(lsta); 2109 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2110 } 2111 2112 out: 2113 lvif = VAP_TO_LVIF(vap); 2114 return (lvif->iv_update_bss(vap, ni)); 2115 } 2116 2117 static int 2118 lkpi_ic_wme_update(struct ieee80211com *ic) 2119 { 2120 /* This needs queuing and go at the right moment. */ 2121 #ifdef WITH_WME_UPDATE 2122 struct ieee80211vap *vap; 2123 struct lkpi_hw *lhw; 2124 struct ieee80211_hw *hw; 2125 struct lkpi_vif *lvif; 2126 struct ieee80211_vif *vif; 2127 struct chanAccParams chp; 2128 struct wmeParams wmeparr[WME_NUM_AC]; 2129 struct ieee80211_tx_queue_params txqp; 2130 enum ieee80211_bss_changed changed; 2131 int error; 2132 uint16_t ac; 2133 #endif 2134 2135 IMPROVE(); 2136 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2137 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2138 2139 #ifdef WITH_WME_UPDATE 2140 vap = TAILQ_FIRST(&ic->ic_vaps); 2141 if (vap == NULL) 2142 return (0); 2143 2144 /* We should factor this out into per-vap (*wme_update). */ 2145 lhw = ic->ic_softc; 2146 if (lhw->ops->conf_tx == NULL) 2147 return (0); 2148 2149 /* XXX-BZ check amount of hw queues */ 2150 hw = LHW_TO_HW(lhw); 2151 lvif = VAP_TO_LVIF(vap); 2152 vif = LVIF_TO_VIF(lvif); 2153 2154 ieee80211_wme_ic_getparams(ic, &chp); 2155 IEEE80211_LOCK(ic); 2156 for (ac = 0; ac < WME_NUM_AC; ac++) 2157 wmeparr[ac] = chp.cap_wmeParams[ac]; 2158 IEEE80211_UNLOCK(ic); 2159 2160 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2161 LKPI_80211_LHW_LOCK(lhw); 2162 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2163 struct wmeParams *wmep; 2164 2165 /* XXX-BZ should keep this in lvif? */ 2166 wmep = &wmeparr[ac]; 2167 bzero(&txqp, sizeof(txqp)); 2168 txqp.cw_min = wmep->wmep_logcwmin; 2169 txqp.cw_max = wmep->wmep_logcwmax; 2170 txqp.txop = wmep->wmep_txopLimit; 2171 txqp.aifs = wmep->wmep_aifsn; 2172 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2173 if (error != 0) 2174 printf("%s: conf_tx ac %u failed %d\n", 2175 __func__, ac, error); 2176 } 2177 LKPI_80211_LHW_UNLOCK(lhw); 2178 changed = BSS_CHANGED_QOS; 2179 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2180 #endif 2181 2182 return (0); 2183 } 2184 2185 static struct ieee80211vap * 2186 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2187 int unit, enum ieee80211_opmode opmode, int flags, 2188 const uint8_t bssid[IEEE80211_ADDR_LEN], 2189 const uint8_t mac[IEEE80211_ADDR_LEN]) 2190 { 2191 struct lkpi_hw *lhw; 2192 struct ieee80211_hw *hw; 2193 struct lkpi_vif *lvif; 2194 struct ieee80211vap *vap; 2195 struct ieee80211_vif *vif; 2196 enum ieee80211_bss_changed changed; 2197 size_t len; 2198 int error; 2199 2200 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2201 return (NULL); 2202 2203 lhw = ic->ic_softc; 2204 hw = LHW_TO_HW(lhw); 2205 2206 len = sizeof(*lvif); 2207 len += hw->vif_data_size; /* vif->drv_priv */ 2208 2209 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2210 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2211 TAILQ_INIT(&lvif->lsta_head); 2212 vap = LVIF_TO_VAP(lvif); 2213 2214 vif = LVIF_TO_VIF(lvif); 2215 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2216 vif->p2p = false; 2217 vif->probe_req_reg = false; 2218 vif->type = lkpi_opmode_to_vif_type(opmode); 2219 lvif->wdev.iftype = vif->type; 2220 /* Need to fill in other fields as well. */ 2221 IMPROVE(); 2222 2223 /* XXX-BZ hardcoded for now! */ 2224 #if 1 2225 vif->chanctx_conf = NULL; 2226 vif->bss_conf.idle = true; 2227 vif->bss_conf.ps = false; 2228 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2229 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2230 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2231 vif->bss_conf.qos = false; 2232 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2233 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2234 vif->bss_conf.assoc = false; 2235 vif->bss_conf.aid = 0; 2236 /* 2237 * We need to initialize it to something as the bss_info_changed call 2238 * will try to copy from it in iwlwifi and NULL is a panic. 2239 * We will set the proper one in scan_to_auth() before being assoc. 2240 * NB: the logic there with using an array as bssid_override and checking 2241 * for non-NULL later is flawed but in their workflow does not seem to 2242 * matter. 2243 */ 2244 vif->bss_conf.bssid = zerobssid; 2245 #endif 2246 #if 0 2247 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2248 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2249 vif->bss_conf.beacon_int = ic->ic_bintval; 2250 /* iwlwifi bug. */ 2251 if (vif->bss_conf.beacon_int < 16) 2252 vif->bss_conf.beacon_int = 16; 2253 #endif 2254 IMPROVE(); 2255 2256 error = lkpi_80211_mo_start(hw); 2257 if (error != 0) { 2258 printf("%s: failed to start hw: %d\n", __func__, error); 2259 mtx_destroy(&lvif->mtx); 2260 free(lvif, M_80211_VAP); 2261 return (NULL); 2262 } 2263 2264 error = lkpi_80211_mo_add_interface(hw, vif); 2265 if (error != 0) { 2266 IMPROVE(); /* XXX-BZ mo_stop()? */ 2267 printf("%s: failed to add interface: %d\n", __func__, error); 2268 mtx_destroy(&lvif->mtx); 2269 free(lvif, M_80211_VAP); 2270 return (NULL); 2271 } 2272 2273 LKPI_80211_LHW_LVIF_LOCK(lhw); 2274 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2275 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2276 2277 /* Set bss_info. */ 2278 changed = 0; 2279 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2280 2281 /* conf_tx setup; default WME? */ 2282 2283 /* Force MC init. */ 2284 lkpi_update_mcast_filter(ic, true); 2285 2286 IMPROVE(); 2287 2288 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2289 2290 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2291 lvif->iv_newstate = vap->iv_newstate; 2292 vap->iv_newstate = lkpi_iv_newstate; 2293 lvif->iv_update_bss = vap->iv_update_bss; 2294 vap->iv_update_bss = lkpi_iv_update_bss; 2295 2296 /* Key management. */ 2297 if (lhw->ops->set_key != NULL) { 2298 #ifdef TRY_HW_CRYPTO 2299 vap->iv_key_set = lkpi_iv_key_set; 2300 vap->iv_key_delete = lkpi_iv_key_delete; 2301 #endif 2302 } 2303 2304 ieee80211_ratectl_init(vap); 2305 2306 /* Complete setup. */ 2307 ieee80211_vap_attach(vap, ieee80211_media_change, 2308 ieee80211_media_status, mac); 2309 2310 if (hw->max_listen_interval == 0) 2311 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2312 hw->conf.listen_interval = hw->max_listen_interval; 2313 ic->ic_set_channel(ic); 2314 2315 /* XXX-BZ do we need to be able to update these? */ 2316 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2317 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2318 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2319 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2320 /* any others? */ 2321 IMPROVE(); 2322 2323 return (vap); 2324 } 2325 2326 static void 2327 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2328 { 2329 struct ieee80211com *ic; 2330 struct lkpi_hw *lhw; 2331 struct ieee80211_hw *hw; 2332 struct lkpi_vif *lvif; 2333 struct ieee80211_vif *vif; 2334 2335 lvif = VAP_TO_LVIF(vap); 2336 vif = LVIF_TO_VIF(lvif); 2337 ic = vap->iv_ic; 2338 lhw = ic->ic_softc; 2339 hw = LHW_TO_HW(lhw); 2340 2341 LKPI_80211_LHW_LVIF_LOCK(lhw); 2342 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2343 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2344 lkpi_80211_mo_remove_interface(hw, vif); 2345 2346 ieee80211_ratectl_deinit(vap); 2347 ieee80211_vap_detach(vap); 2348 mtx_destroy(&lvif->mtx); 2349 free(lvif, M_80211_VAP); 2350 } 2351 2352 static void 2353 lkpi_ic_update_mcast(struct ieee80211com *ic) 2354 { 2355 2356 lkpi_update_mcast_filter(ic, false); 2357 TRACEOK(); 2358 } 2359 2360 static void 2361 lkpi_ic_update_promisc(struct ieee80211com *ic) 2362 { 2363 2364 UNIMPLEMENTED; 2365 } 2366 2367 static void 2368 lkpi_ic_update_chw(struct ieee80211com *ic) 2369 { 2370 2371 UNIMPLEMENTED; 2372 } 2373 2374 /* Start / stop device. */ 2375 static void 2376 lkpi_ic_parent(struct ieee80211com *ic) 2377 { 2378 struct lkpi_hw *lhw; 2379 struct ieee80211_hw *hw; 2380 int error; 2381 bool start_all; 2382 2383 IMPROVE(); 2384 2385 lhw = ic->ic_softc; 2386 hw = LHW_TO_HW(lhw); 2387 start_all = false; 2388 2389 if (ic->ic_nrunning > 0) { 2390 error = lkpi_80211_mo_start(hw); 2391 if (error == 0) 2392 start_all = true; 2393 } else { 2394 lkpi_80211_mo_stop(hw); 2395 } 2396 2397 if (start_all) 2398 ieee80211_start_all(ic); 2399 } 2400 2401 bool 2402 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2403 size_t ie_ids_len) 2404 { 2405 int i; 2406 2407 for (i = 0; i < ie_ids_len; i++) { 2408 if (ie == *ie_ids) 2409 return (true); 2410 } 2411 2412 return (false); 2413 } 2414 2415 /* Return true if skipped; false if error. */ 2416 bool 2417 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2418 { 2419 size_t x; 2420 uint8_t l; 2421 2422 x = *xp; 2423 2424 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2425 __func__, x, ies_len, ies)); 2426 l = ies[x + 1]; 2427 x += 2 + l; 2428 2429 if (x > ies_len) 2430 return (false); 2431 2432 *xp = x; 2433 return (true); 2434 } 2435 2436 static uint8_t * 2437 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2438 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2439 { 2440 struct ieee80211_supported_band *supband; 2441 struct linuxkpi_ieee80211_channel *channels; 2442 const struct ieee80211_channel *chan; 2443 const struct ieee80211_rateset *rs; 2444 uint8_t *pb; 2445 int band, i; 2446 2447 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2448 if ((band_mask & (1 << band)) == 0) 2449 continue; 2450 2451 supband = hw->wiphy->bands[band]; 2452 /* 2453 * This should not happen; 2454 * band_mask is a bitmask of valid bands to scan on. 2455 */ 2456 if (supband == NULL || supband->n_channels == 0) 2457 continue; 2458 2459 /* Find a first channel to get the mode and rates from. */ 2460 channels = supband->channels; 2461 chan = NULL; 2462 for (i = 0; i < supband->n_channels; i++) { 2463 2464 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2465 continue; 2466 2467 chan = ieee80211_find_channel(vap->iv_ic, 2468 channels[i].center_freq, 0); 2469 if (chan != NULL) 2470 break; 2471 } 2472 2473 /* This really should not happen. */ 2474 if (chan == NULL) 2475 continue; 2476 2477 pb = p; 2478 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2479 p = ieee80211_add_rates(p, rs); 2480 p = ieee80211_add_xrates(p, rs); 2481 2482 scan_ies->ies[band] = pb; 2483 scan_ies->len[band] = p - pb; 2484 } 2485 2486 /* Add common_ies */ 2487 pb = p; 2488 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2489 vap->iv_wpa_ie != NULL) { 2490 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2491 p += 2 + vap->iv_wpa_ie[1]; 2492 } 2493 if (vap->iv_appie_probereq != NULL) { 2494 memcpy(p, vap->iv_appie_probereq->ie_data, 2495 vap->iv_appie_probereq->ie_len); 2496 p += vap->iv_appie_probereq->ie_len; 2497 } 2498 scan_ies->common_ies = pb; 2499 scan_ies->common_ie_len = p - pb; 2500 2501 return (p); 2502 } 2503 2504 static void 2505 lkpi_ic_scan_start(struct ieee80211com *ic) 2506 { 2507 struct lkpi_hw *lhw; 2508 struct ieee80211_hw *hw; 2509 struct lkpi_vif *lvif; 2510 struct ieee80211_vif *vif; 2511 struct ieee80211_scan_state *ss; 2512 struct ieee80211vap *vap; 2513 int error; 2514 2515 lhw = ic->ic_softc; 2516 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2517 /* A scan is still running. */ 2518 return; 2519 } 2520 2521 ss = ic->ic_scan; 2522 vap = ss->ss_vap; 2523 if (vap->iv_state != IEEE80211_S_SCAN) { 2524 IMPROVE("We need to be able to scan if not in S_SCAN"); 2525 return; 2526 } 2527 2528 hw = LHW_TO_HW(lhw); 2529 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2530 sw_scan: 2531 lvif = VAP_TO_LVIF(vap); 2532 vif = LVIF_TO_VIF(lvif); 2533 2534 if (vap->iv_state == IEEE80211_S_SCAN) 2535 lkpi_hw_conf_idle(hw, false); 2536 2537 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2538 /* net80211::scan_start() handled PS for us. */ 2539 IMPROVE(); 2540 /* XXX Also means it is too late to flush queues? 2541 * need to check iv_sta_ps or overload? */ 2542 /* XXX want to adjust ss end time/ maxdwell? */ 2543 2544 } else { 2545 struct ieee80211_channel *c; 2546 struct ieee80211_scan_request *hw_req; 2547 struct linuxkpi_ieee80211_channel *lc, **cpp; 2548 struct cfg80211_ssid *ssids; 2549 struct cfg80211_scan_6ghz_params *s6gp; 2550 size_t chan_len, nchan, ssids_len, s6ghzlen; 2551 int band, i, ssid_count, common_ie_len; 2552 uint32_t band_mask; 2553 uint8_t *ie, *ieend; 2554 2555 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2556 IMPROVE("individual band scans not yet supported"); 2557 /* In theory net80211 would have to drive this. */ 2558 return; 2559 } 2560 2561 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2562 ssids_len = ssid_count * sizeof(*ssids); 2563 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2564 2565 band_mask = 0; 2566 nchan = 0; 2567 for (i = ss->ss_next; i < ss->ss_last; i++) { 2568 nchan++; 2569 band = lkpi_net80211_chan_to_nl80211_band( 2570 ss->ss_chans[ss->ss_next + i]); 2571 band_mask |= (1 << band); 2572 } 2573 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2574 2575 common_ie_len = 0; 2576 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2577 vap->iv_wpa_ie != NULL) 2578 common_ie_len += vap->iv_wpa_ie[1]; 2579 if (vap->iv_appie_probereq != NULL) 2580 common_ie_len += vap->iv_appie_probereq->ie_len; 2581 2582 /* We would love to check this at an earlier stage... */ 2583 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2584 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2585 "wiphy->max_scan_ie_len %d\n", __func__, 2586 common_ie_len, hw->wiphy->max_scan_ie_len); 2587 } 2588 2589 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2590 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2591 2592 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2593 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2594 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2595 2596 hw_req->req.flags = 0; /* XXX ??? */ 2597 /* hw_req->req.wdev */ 2598 hw_req->req.wiphy = hw->wiphy; 2599 hw_req->req.no_cck = false; /* XXX */ 2600 #if 0 2601 /* This seems to pessimise default scanning behaviour. */ 2602 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2603 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2604 #endif 2605 #ifdef __notyet__ 2606 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2607 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2608 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2609 #endif 2610 2611 hw_req->req.n_channels = nchan; 2612 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2613 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2614 for (i = 0; i < nchan; i++) { 2615 *(cpp + i) = 2616 (struct linuxkpi_ieee80211_channel *)(lc + i); 2617 } 2618 for (i = 0; i < nchan; i++) { 2619 c = ss->ss_chans[ss->ss_next + i]; 2620 2621 lc->hw_value = c->ic_ieee; 2622 lc->center_freq = c->ic_freq; 2623 /* lc->flags */ 2624 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2625 lc->max_power = c->ic_maxpower; 2626 /* lc-> ... */ 2627 lc++; 2628 } 2629 2630 hw_req->req.n_ssids = ssid_count; 2631 if (hw_req->req.n_ssids > 0) { 2632 ssids = (struct cfg80211_ssid *)lc; 2633 hw_req->req.ssids = ssids; 2634 for (i = 0; i < ssid_count; i++) { 2635 ssids->ssid_len = ss->ss_ssid[i].len; 2636 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2637 ss->ss_ssid[i].len); 2638 ssids++; 2639 } 2640 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2641 } else { 2642 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2643 } 2644 2645 /* 6GHz one day. */ 2646 hw_req->req.n_6ghz_params = 0; 2647 hw_req->req.scan_6ghz_params = NULL; 2648 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2649 /* s6gp->... */ 2650 2651 ie = ieend = (uint8_t *)s6gp; 2652 /* Copy per-band IEs, copy common IEs */ 2653 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2654 hw_req->req.ie = ie; 2655 hw_req->req.ie_len = ieend - ie; 2656 2657 lvif = VAP_TO_LVIF(vap); 2658 vif = LVIF_TO_VIF(lvif); 2659 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2660 if (error != 0) { 2661 ieee80211_cancel_scan(vap); 2662 2663 free(hw_req, M_LKPI80211); 2664 lhw->hw_req = NULL; 2665 2666 /* 2667 * XXX-SIGH magic number. 2668 * rtw88 has a magic "return 1" if offloading scan is 2669 * not possible. Fall back to sw scan in that case. 2670 */ 2671 if (error == 1) { 2672 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2673 ieee80211_start_scan(vap, 2674 IEEE80211_SCAN_ACTIVE | 2675 IEEE80211_SCAN_NOPICK | 2676 IEEE80211_SCAN_ONCE, 2677 IEEE80211_SCAN_FOREVER, 2678 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2679 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2680 vap->iv_des_nssid, vap->iv_des_ssid); 2681 goto sw_scan; 2682 } 2683 2684 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2685 __func__, error); 2686 } 2687 } 2688 } 2689 2690 static void 2691 lkpi_ic_scan_end(struct ieee80211com *ic) 2692 { 2693 struct lkpi_hw *lhw; 2694 struct ieee80211_scan_state *ss; 2695 struct ieee80211vap *vap; 2696 2697 lhw = ic->ic_softc; 2698 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2699 return; 2700 } 2701 2702 ss = ic->ic_scan; 2703 vap = ss->ss_vap; 2704 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2705 /* Nothing to do. */ 2706 } else { 2707 struct ieee80211_hw *hw; 2708 struct lkpi_vif *lvif; 2709 struct ieee80211_vif *vif; 2710 2711 hw = LHW_TO_HW(lhw); 2712 lvif = VAP_TO_LVIF(vap); 2713 vif = LVIF_TO_VIF(lvif); 2714 lkpi_80211_mo_sw_scan_complete(hw, vif); 2715 2716 /* Send PS to stop buffering if n80211 does not for us? */ 2717 2718 if (vap->iv_state == IEEE80211_S_SCAN) 2719 lkpi_hw_conf_idle(hw, true); 2720 } 2721 } 2722 2723 static void 2724 lkpi_ic_set_channel(struct ieee80211com *ic) 2725 { 2726 struct lkpi_hw *lhw; 2727 struct ieee80211_hw *hw; 2728 struct ieee80211_channel *c; 2729 struct linuxkpi_ieee80211_channel *chan; 2730 int error; 2731 2732 lhw = ic->ic_softc; 2733 2734 /* If we do not support (*config)() save us the work. */ 2735 if (lhw->ops->config == NULL) 2736 return; 2737 2738 c = ic->ic_curchan; 2739 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2740 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2741 c, lhw->ops->config); 2742 return; 2743 } 2744 2745 chan = lkpi_find_lkpi80211_chan(lhw, c); 2746 if (chan == NULL) { 2747 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2748 c, chan); 2749 return; 2750 } 2751 2752 /* XXX max power for scanning? */ 2753 IMPROVE(); 2754 2755 hw = LHW_TO_HW(lhw); 2756 cfg80211_chandef_create(&hw->conf.chandef, chan, 2757 NL80211_CHAN_NO_HT); 2758 2759 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2760 if (error != 0 && error != EOPNOTSUPP) { 2761 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2762 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2763 /* XXX should we unroll to the previous chandef? */ 2764 IMPROVE(); 2765 } else { 2766 /* Update radiotap channels as well. */ 2767 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2768 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2769 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2770 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2771 } 2772 2773 /* Currently PS is hard coded off! Not sure it belongs here. */ 2774 IMPROVE(); 2775 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2776 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2777 hw->conf.flags &= ~IEEE80211_CONF_PS; 2778 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2779 if (error != 0 && error != EOPNOTSUPP) 2780 ic_printf(ic, "ERROR: %s: config %#0x returned " 2781 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2782 error); 2783 } 2784 } 2785 2786 static struct ieee80211_node * 2787 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2788 const uint8_t mac[IEEE80211_ADDR_LEN]) 2789 { 2790 struct ieee80211com *ic; 2791 struct lkpi_hw *lhw; 2792 struct ieee80211_node *ni; 2793 struct ieee80211_hw *hw; 2794 struct lkpi_sta *lsta; 2795 2796 ic = vap->iv_ic; 2797 lhw = ic->ic_softc; 2798 2799 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2800 if (lhw->ic_node_alloc == NULL) 2801 return (NULL); 2802 2803 ni = lhw->ic_node_alloc(vap, mac); 2804 if (ni == NULL) 2805 return (NULL); 2806 2807 hw = LHW_TO_HW(lhw); 2808 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2809 if (lsta == NULL) { 2810 if (lhw->ic_node_free != NULL) 2811 lhw->ic_node_free(ni); 2812 return (NULL); 2813 } 2814 2815 return (ni); 2816 } 2817 2818 static int 2819 lkpi_ic_node_init(struct ieee80211_node *ni) 2820 { 2821 struct ieee80211com *ic; 2822 struct lkpi_hw *lhw; 2823 struct lkpi_sta *lsta; 2824 int error; 2825 2826 ic = ni->ni_ic; 2827 lhw = ic->ic_softc; 2828 2829 if (lhw->ic_node_init != NULL) { 2830 error = lhw->ic_node_init(ni); 2831 if (error != 0) 2832 return (error); 2833 } 2834 2835 lsta = ni->ni_drv_data; 2836 2837 /* Now take the reference before linking it to the table. */ 2838 lsta->ni = ieee80211_ref_node(ni); 2839 2840 /* XXX-BZ Sync other state over. */ 2841 IMPROVE(); 2842 2843 return (0); 2844 } 2845 2846 static void 2847 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2848 { 2849 struct ieee80211com *ic; 2850 struct lkpi_hw *lhw; 2851 2852 ic = ni->ni_ic; 2853 lhw = ic->ic_softc; 2854 2855 /* XXX-BZ remove from driver, ... */ 2856 IMPROVE(); 2857 2858 if (lhw->ic_node_cleanup != NULL) 2859 lhw->ic_node_cleanup(ni); 2860 } 2861 2862 static void 2863 lkpi_ic_node_free(struct ieee80211_node *ni) 2864 { 2865 struct ieee80211com *ic; 2866 struct lkpi_hw *lhw; 2867 struct lkpi_sta *lsta; 2868 2869 ic = ni->ni_ic; 2870 lhw = ic->ic_softc; 2871 lsta = ni->ni_drv_data; 2872 if (lsta == NULL) 2873 goto out; 2874 2875 /* XXX-BZ free resources, ... */ 2876 IMPROVE(); 2877 2878 /* Flush mbufq (make sure to release ni refs!). */ 2879 #ifdef __notyet__ 2880 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2881 __func__, lsta, mbufq_len(&lsta->txq))); 2882 #endif 2883 /* Drain taskq. */ 2884 2885 /* Drain sta->txq[] */ 2886 mtx_destroy(&lsta->txq_mtx); 2887 2888 /* Remove lsta if added_to_drv. */ 2889 2890 /* Remove lsta from vif */ 2891 /* Remove ref from lsta node... */ 2892 /* Free lsta. */ 2893 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 2894 2895 out: 2896 if (lhw->ic_node_free != NULL) 2897 lhw->ic_node_free(ni); 2898 } 2899 2900 static int 2901 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2902 const struct ieee80211_bpf_params *params __unused) 2903 { 2904 struct lkpi_sta *lsta; 2905 2906 lsta = ni->ni_drv_data; 2907 2908 /* Queue the packet and enqueue the task to handle it. */ 2909 LKPI_80211_LSTA_LOCK(lsta); 2910 mbufq_enqueue(&lsta->txq, m); 2911 LKPI_80211_LSTA_UNLOCK(lsta); 2912 2913 #ifdef LINUXKPI_DEBUG_80211 2914 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2915 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2916 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2917 mbufq_len(&lsta->txq)); 2918 #endif 2919 2920 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2921 return (0); 2922 } 2923 2924 static void 2925 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2926 { 2927 struct ieee80211_node *ni; 2928 struct ieee80211_frame *wh; 2929 struct ieee80211_key *k; 2930 struct sk_buff *skb; 2931 struct ieee80211com *ic; 2932 struct lkpi_hw *lhw; 2933 struct ieee80211_hw *hw; 2934 struct lkpi_vif *lvif; 2935 struct ieee80211_vif *vif; 2936 struct ieee80211_channel *c; 2937 struct ieee80211_tx_control control; 2938 struct ieee80211_tx_info *info; 2939 struct ieee80211_sta *sta; 2940 void *buf; 2941 int ac; 2942 2943 M_ASSERTPKTHDR(m); 2944 #ifdef LINUXKPI_DEBUG_80211 2945 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2946 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2947 #endif 2948 2949 ni = lsta->ni; 2950 #ifndef TRY_HW_CRYPTO 2951 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2952 wh = mtod(m, struct ieee80211_frame *); 2953 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2954 /* Retrieve key for TX && do software encryption. */ 2955 k = ieee80211_crypto_encap(ni, m); 2956 if (k == NULL) { 2957 ieee80211_free_node(ni); 2958 m_freem(m); 2959 return; 2960 } 2961 } 2962 #endif 2963 2964 ic = ni->ni_ic; 2965 lhw = ic->ic_softc; 2966 hw = LHW_TO_HW(lhw); 2967 c = ni->ni_chan; 2968 2969 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2970 struct lkpi_radiotap_tx_hdr *rtap; 2971 2972 rtap = &lhw->rtap_tx; 2973 rtap->wt_flags = 0; 2974 if (k != NULL) 2975 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2976 if (m->m_flags & M_FRAG) 2977 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2978 IMPROVE(); 2979 rtap->wt_rate = 0; 2980 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2981 rtap->wt_chan_freq = htole16(c->ic_freq); 2982 rtap->wt_chan_flags = htole16(c->ic_flags); 2983 } 2984 2985 ieee80211_radiotap_tx(ni->ni_vap, m); 2986 } 2987 2988 /* 2989 * net80211 should handle hw->extra_tx_headroom. 2990 * Though for as long as we are copying we don't mind. 2991 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2992 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2993 */ 2994 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2995 if (skb == NULL) { 2996 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2997 ieee80211_free_node(ni); 2998 m_freem(m); 2999 return; 3000 } 3001 skb_reserve(skb, hw->extra_tx_headroom); 3002 3003 /* XXX-BZ we need a SKB version understanding mbuf. */ 3004 /* Save the mbuf for ieee80211_tx_complete(). */ 3005 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3006 skb->m = m; 3007 #if 0 3008 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3009 #else 3010 buf = skb_put(skb, m->m_pkthdr.len); 3011 m_copydata(m, 0, m->m_pkthdr.len, buf); 3012 #endif 3013 /* Save the ni. */ 3014 m->m_pkthdr.PH_loc.ptr = ni; 3015 3016 lvif = VAP_TO_LVIF(ni->ni_vap); 3017 vif = LVIF_TO_VIF(lvif); 3018 3019 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 3020 ac = M_WME_GETAC(m); 3021 skb->priority = WME_AC_TO_TID(ac); 3022 ac = lkpi_ac_net_to_l80211(ac); 3023 skb_set_queue_mapping(skb, ac); 3024 3025 info = IEEE80211_SKB_CB(skb); 3026 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3027 /* Slight delay; probably only happens on scanning so fine? */ 3028 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3029 c = ic->ic_curchan; 3030 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3031 info->hw_queue = ac; /* XXX-BZ is this correct? */ 3032 if (m->m_flags & M_EAPOL) 3033 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3034 info->control.vif = vif; 3035 /* XXX-BZ info->control.rates */ 3036 3037 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3038 if (lsta != NULL) { 3039 sta = LSTA_TO_STA(lsta); 3040 #ifdef TRY_HW_CRYPTO 3041 info->control.hw_key = lsta->kc; 3042 #endif 3043 } else { 3044 sta = NULL; 3045 } 3046 3047 IMPROVE(); 3048 3049 if (sta != NULL) { 3050 struct lkpi_txq *ltxq; 3051 struct ieee80211_hdr *hdr; 3052 3053 hdr = (void *)skb->data; 3054 if (lsta->added_to_drv && 3055 !ieee80211_is_data_present(hdr->frame_control)) { 3056 if (sta->txq[IEEE80211_NUM_TIDS] != NULL) 3057 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3058 else 3059 goto ops_tx; 3060 } else if (lsta->added_to_drv) { 3061 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 3062 } else 3063 goto ops_tx; 3064 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3065 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3066 3067 /* 3068 * We currently do not use queues but do direct TX. 3069 * The exception to the rule is initial packets, as we cannot 3070 * TX until queues are allocated (at least for iwlwifi). 3071 * So we wake_tx_queue in newstate and register any dequeue 3072 * calls. In the time until then we queue packets and 3073 * let the driver deal with them. 3074 */ 3075 #if 0 3076 if (!ltxq->seen_dequeue) { 3077 3078 /* Prevent an ordering problem, likely other issues. */ 3079 while (!skb_queue_empty(<xq->skbq)) { 3080 struct sk_buff *skb2; 3081 3082 skb2 = skb_dequeue(<xq->skbq); 3083 if (skb2 != NULL) { 3084 memset(&control, 0, sizeof(control)); 3085 control.sta = sta; 3086 lkpi_80211_mo_tx(hw, &control, skb2); 3087 } 3088 } 3089 goto ops_tx; 3090 } 3091 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 3092 goto ops_tx; 3093 #endif 3094 3095 skb_queue_tail(<xq->skbq, skb); 3096 #ifdef LINUXKPI_DEBUG_80211 3097 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3098 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3099 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3100 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3101 __func__, __LINE__, 3102 curthread->td_tid, (unsigned int)ticks, 3103 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3104 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3105 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3106 #endif 3107 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3108 return; 3109 } 3110 3111 ops_tx: 3112 #ifdef LINUXKPI_DEBUG_80211 3113 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3114 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3115 "TX ac %d prio %u qmap %u\n", 3116 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3117 skb, ac, skb->priority, skb->qmap); 3118 #endif 3119 memset(&control, 0, sizeof(control)); 3120 control.sta = sta; 3121 3122 lkpi_80211_mo_tx(hw, &control, skb); 3123 return; 3124 } 3125 3126 static void 3127 lkpi_80211_txq_task(void *ctx, int pending) 3128 { 3129 struct lkpi_sta *lsta; 3130 struct mbufq mq; 3131 struct mbuf *m; 3132 3133 lsta = ctx; 3134 3135 #ifdef LINUXKPI_DEBUG_80211 3136 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3137 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3138 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3139 pending, mbufq_len(&lsta->txq)); 3140 #endif 3141 3142 mbufq_init(&mq, IFQ_MAXLEN); 3143 3144 LKPI_80211_LSTA_LOCK(lsta); 3145 mbufq_concat(&mq, &lsta->txq); 3146 LKPI_80211_LSTA_UNLOCK(lsta); 3147 3148 m = mbufq_dequeue(&mq); 3149 while (m != NULL) { 3150 lkpi_80211_txq_tx_one(lsta, m); 3151 m = mbufq_dequeue(&mq); 3152 } 3153 } 3154 3155 static int 3156 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3157 { 3158 3159 /* XXX TODO */ 3160 IMPROVE(); 3161 3162 /* Quick and dirty cheating hack. */ 3163 struct ieee80211_node *ni; 3164 3165 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3166 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3167 } 3168 3169 static void 3170 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3171 int *n, struct ieee80211_channel *c) 3172 { 3173 struct lkpi_hw *lhw; 3174 struct ieee80211_hw *hw; 3175 struct linuxkpi_ieee80211_channel *channels; 3176 uint8_t bands[IEEE80211_MODE_BYTES]; 3177 int chan_flags, error, i, nchans; 3178 3179 /* Channels */ 3180 lhw = ic->ic_softc; 3181 hw = LHW_TO_HW(lhw); 3182 3183 /* NL80211_BAND_2GHZ */ 3184 nchans = 0; 3185 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3186 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3187 if (nchans > 0) { 3188 memset(bands, 0, sizeof(bands)); 3189 chan_flags = 0; 3190 setbit(bands, IEEE80211_MODE_11B); 3191 /* XXX-BZ unclear how to check for 11g. */ 3192 setbit(bands, IEEE80211_MODE_11G); 3193 #ifdef __notyet__ 3194 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3195 setbit(bands, IEEE80211_MODE_11NG); 3196 chan_flags |= NET80211_CBW_FLAG_HT40; 3197 } 3198 #endif 3199 3200 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3201 for (i = 0; i < nchans && *n < maxchan; i++) { 3202 uint32_t nflags = 0; 3203 int cflags = chan_flags; 3204 3205 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3206 printf("%s: %s: Skipping disabled chan " 3207 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3208 channels[i].hw_value, 3209 channels[i].center_freq, channels[i].flags); 3210 continue; 3211 } 3212 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3213 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3214 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3215 nflags |= IEEE80211_CHAN_DFS; 3216 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3217 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3218 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3219 cflags &= ~NET80211_CBW_FLAG_VHT80; 3220 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3221 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3222 cflags &= ~NET80211_CBW_FLAG_HT40; 3223 3224 error = ieee80211_add_channel_cbw(c, maxchan, n, 3225 channels[i].hw_value, channels[i].center_freq, 3226 channels[i].max_power, 3227 nflags, bands, chan_flags); 3228 /* net80211::ENOBUFS: *n >= maxchans */ 3229 if (error != 0 && error != ENOBUFS) 3230 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3231 "returned error %d\n", ic->ic_name, 3232 __func__, channels[i].hw_value, 3233 channels[i].center_freq, channels[i].flags, 3234 nflags, chan_flags, cflags, error); 3235 if (error != 0) 3236 break; 3237 } 3238 } 3239 3240 /* NL80211_BAND_5GHZ */ 3241 nchans = 0; 3242 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3243 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3244 if (nchans > 0) { 3245 memset(bands, 0, sizeof(bands)); 3246 chan_flags = 0; 3247 setbit(bands, IEEE80211_MODE_11A); 3248 #ifdef __not_yet__ 3249 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3250 setbit(bands, IEEE80211_MODE_11NA); 3251 chan_flags |= NET80211_CBW_FLAG_HT40; 3252 } 3253 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3254 3255 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3256 ic->ic_vhtcaps = 3257 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3258 3259 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3260 chan_flags |= NET80211_CBW_FLAG_VHT80; 3261 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3262 ic->ic_vhtcaps)) 3263 chan_flags |= NET80211_CBW_FLAG_VHT160; 3264 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3265 ic->ic_vhtcaps)) 3266 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3267 } 3268 #endif 3269 3270 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3271 for (i = 0; i < nchans && *n < maxchan; i++) { 3272 uint32_t nflags = 0; 3273 int cflags = chan_flags; 3274 3275 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3276 printf("%s: %s: Skipping disabled chan " 3277 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3278 channels[i].hw_value, 3279 channels[i].center_freq, channels[i].flags); 3280 continue; 3281 } 3282 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3283 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3284 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3285 nflags |= IEEE80211_CHAN_DFS; 3286 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3287 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3288 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3289 cflags &= ~NET80211_CBW_FLAG_VHT80; 3290 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3291 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3292 cflags &= ~NET80211_CBW_FLAG_HT40; 3293 3294 error = ieee80211_add_channel_cbw(c, maxchan, n, 3295 channels[i].hw_value, channels[i].center_freq, 3296 channels[i].max_power, 3297 nflags, bands, chan_flags); 3298 /* net80211::ENOBUFS: *n >= maxchans */ 3299 if (error != 0 && error != ENOBUFS) 3300 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3301 "returned error %d\n", ic->ic_name, 3302 __func__, channels[i].hw_value, 3303 channels[i].center_freq, channels[i].flags, 3304 nflags, chan_flags, cflags, error); 3305 if (error != 0) 3306 break; 3307 } 3308 } 3309 } 3310 3311 static void * 3312 lkpi_ieee80211_ifalloc(void) 3313 { 3314 struct ieee80211com *ic; 3315 3316 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3317 if (ic == NULL) 3318 return (NULL); 3319 3320 /* Setting these happens later when we have device information. */ 3321 ic->ic_softc = NULL; 3322 ic->ic_name = "linuxkpi"; 3323 3324 return (ic); 3325 } 3326 3327 struct ieee80211_hw * 3328 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3329 { 3330 struct ieee80211_hw *hw; 3331 struct lkpi_hw *lhw; 3332 struct wiphy *wiphy; 3333 3334 /* Get us and the driver data also allocated. */ 3335 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3336 if (wiphy == NULL) 3337 return (NULL); 3338 3339 lhw = wiphy_priv(wiphy); 3340 lhw->ops = ops; 3341 3342 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3343 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3344 TAILQ_INIT(&lhw->lvif_head); 3345 3346 /* 3347 * XXX-BZ TODO make sure there is a "_null" function to all ops 3348 * not initialized. 3349 */ 3350 hw = LHW_TO_HW(lhw); 3351 hw->wiphy = wiphy; 3352 hw->conf.flags |= IEEE80211_CONF_IDLE; 3353 hw->priv = (void *)(lhw + 1); 3354 3355 /* BSD Specific. */ 3356 lhw->ic = lkpi_ieee80211_ifalloc(); 3357 if (lhw->ic == NULL) { 3358 ieee80211_free_hw(hw); 3359 return (NULL); 3360 } 3361 3362 IMPROVE(); 3363 3364 return (hw); 3365 } 3366 3367 void 3368 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3369 { 3370 struct lkpi_hw *lhw; 3371 3372 lhw = HW_TO_LHW(hw); 3373 free(lhw->ic, M_LKPI80211); 3374 lhw->ic = NULL; 3375 3376 /* Cleanup more of lhw here or in wiphy_free()? */ 3377 sx_destroy(&lhw->lvif_sx); 3378 mtx_destroy(&lhw->mtx); 3379 IMPROVE(); 3380 } 3381 3382 void 3383 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3384 { 3385 struct lkpi_hw *lhw; 3386 struct ieee80211com *ic; 3387 3388 lhw = HW_TO_LHW(hw); 3389 ic = lhw->ic; 3390 3391 /* Now set a proper name before ieee80211_ifattach(). */ 3392 ic->ic_softc = lhw; 3393 ic->ic_name = name; 3394 3395 /* XXX-BZ do we also need to set wiphy name? */ 3396 } 3397 3398 struct ieee80211_hw * 3399 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3400 { 3401 struct lkpi_hw *lhw; 3402 3403 lhw = wiphy_priv(wiphy); 3404 return (LHW_TO_HW(lhw)); 3405 } 3406 3407 static void 3408 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3409 { 3410 struct ieee80211com *ic; 3411 3412 ic = lhw->ic; 3413 ieee80211_radiotap_attach(ic, 3414 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3415 LKPI_RTAP_TX_FLAGS_PRESENT, 3416 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3417 LKPI_RTAP_RX_FLAGS_PRESENT); 3418 } 3419 3420 int 3421 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3422 { 3423 struct ieee80211com *ic; 3424 struct lkpi_hw *lhw; 3425 int band, i; 3426 3427 lhw = HW_TO_LHW(hw); 3428 ic = lhw->ic; 3429 3430 /* We do it this late as wiphy->dev should be set for the name. */ 3431 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3432 if (lhw->workq == NULL) 3433 return (-EAGAIN); 3434 3435 /* XXX-BZ figure this out how they count his... */ 3436 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3437 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3438 hw->wiphy->perm_addr); 3439 } else if (hw->wiphy->n_addresses > 0) { 3440 /* We take the first one. */ 3441 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3442 hw->wiphy->addresses[0].addr); 3443 } else { 3444 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3445 } 3446 3447 #ifdef __not_yet__ 3448 /* See comment in lkpi_80211_txq_tx_one(). */ 3449 ic->ic_headroom = hw->extra_tx_headroom; 3450 #endif 3451 3452 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3453 ic->ic_opmode = IEEE80211_M_STA; 3454 3455 /* Set device capabilities. */ 3456 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3457 ic->ic_caps = 3458 IEEE80211_C_STA | 3459 IEEE80211_C_MONITOR | 3460 IEEE80211_C_WPA | /* WPA/RSN */ 3461 IEEE80211_C_WME | 3462 #if 0 3463 IEEE80211_C_PMGT | 3464 #endif 3465 IEEE80211_C_SHSLOT | /* short slot time supported */ 3466 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3467 ; 3468 #if 0 3469 /* Scanning is a different kind of beast to re-work. */ 3470 ic->ic_caps |= IEEE80211_C_BGSCAN; 3471 #endif 3472 if (lhw->ops->hw_scan) { 3473 /* 3474 * Advertise full-offload scanning. 3475 * 3476 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3477 * we essentially disable hw_scan for all drivers not setting 3478 * the flag. 3479 */ 3480 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3481 } 3482 3483 #ifdef __notyet__ 3484 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3485 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3486 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3487 | IEEE80211_HTCAP_MAXAMSDU_3839 3488 /* max A-MSDU length */ 3489 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3490 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3491 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3492 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3493 #endif 3494 3495 ic->ic_cryptocaps = 0; 3496 #ifdef TRY_HW_CRYPTO 3497 if (hw->wiphy->n_cipher_suites > 0) { 3498 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3499 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3500 hw->wiphy->cipher_suites[i]); 3501 } 3502 #endif 3503 3504 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3505 ic->ic_channels); 3506 3507 ieee80211_ifattach(ic); 3508 3509 ic->ic_update_mcast = lkpi_ic_update_mcast; 3510 ic->ic_update_promisc = lkpi_ic_update_promisc; 3511 ic->ic_update_chw = lkpi_ic_update_chw; 3512 ic->ic_parent = lkpi_ic_parent; 3513 ic->ic_scan_start = lkpi_ic_scan_start; 3514 ic->ic_scan_end = lkpi_ic_scan_end; 3515 ic->ic_set_channel = lkpi_ic_set_channel; 3516 ic->ic_transmit = lkpi_ic_transmit; 3517 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3518 ic->ic_vap_create = lkpi_ic_vap_create; 3519 ic->ic_vap_delete = lkpi_ic_vap_delete; 3520 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3521 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3522 3523 lhw->ic_node_alloc = ic->ic_node_alloc; 3524 ic->ic_node_alloc = lkpi_ic_node_alloc; 3525 lhw->ic_node_init = ic->ic_node_init; 3526 ic->ic_node_init = lkpi_ic_node_init; 3527 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3528 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3529 lhw->ic_node_free = ic->ic_node_free; 3530 ic->ic_node_free = lkpi_ic_node_free; 3531 3532 lkpi_radiotap_attach(lhw); 3533 3534 /* 3535 * Assign the first possible channel for now; seems Realtek drivers 3536 * expect one. 3537 * Also remember the amount of bands we support and the most rates 3538 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3539 */ 3540 lhw->supbands = lhw->max_rates = 0; 3541 for (band = 0; band < NUM_NL80211_BANDS && 3542 hw->conf.chandef.chan == NULL; band++) { 3543 struct ieee80211_supported_band *supband; 3544 struct linuxkpi_ieee80211_channel *channels; 3545 3546 supband = hw->wiphy->bands[band]; 3547 if (supband == NULL || supband->n_channels == 0) 3548 continue; 3549 3550 lhw->supbands++; 3551 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3552 3553 channels = supband->channels; 3554 for (i = 0; i < supband->n_channels; i++) { 3555 3556 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3557 continue; 3558 3559 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3560 NL80211_CHAN_NO_HT); 3561 break; 3562 } 3563 } 3564 3565 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3566 3567 /* Make sure we do not support more than net80211 is willing to take. */ 3568 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3569 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3570 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3571 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3572 } 3573 3574 /* 3575 * The maximum supported bitrates on any band + size for 3576 * DSSS Parameter Set give our per-band IE size. 3577 * XXX-BZ FIXME add HT VHT ... later 3578 * SSID is the responsibility of the driver and goes on the side. 3579 * The user specified bits coming from the vap go into the 3580 * "common ies" fields. 3581 */ 3582 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3583 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3584 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3585 /* 3586 * net80211 does not seem to support the DSSS Parameter Set but some of 3587 * the drivers insert it so calculate the extra fixed space in. 3588 */ 3589 lhw->scan_ie_len += 2 + 1; 3590 3591 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3592 if (hw->wiphy->max_scan_ie_len > 0) 3593 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3594 3595 if (bootverbose) 3596 ieee80211_announce(ic); 3597 3598 return (0); 3599 } 3600 3601 void 3602 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3603 { 3604 struct lkpi_hw *lhw; 3605 struct ieee80211com *ic; 3606 3607 lhw = HW_TO_LHW(hw); 3608 ic = lhw->ic; 3609 ieee80211_ifdetach(ic); 3610 } 3611 3612 void 3613 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3614 enum ieee80211_iface_iter flags, 3615 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3616 void *arg) 3617 { 3618 struct lkpi_hw *lhw; 3619 struct lkpi_vif *lvif; 3620 struct ieee80211_vif *vif; 3621 bool active, atomic, nin_drv; 3622 3623 lhw = HW_TO_LHW(hw); 3624 3625 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3626 IEEE80211_IFACE_ITER_RESUME_ALL| 3627 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3628 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3629 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3630 __func__, flags); 3631 } 3632 3633 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3634 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3635 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3636 3637 if (atomic) 3638 LKPI_80211_LHW_LVIF_LOCK(lhw); 3639 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3640 struct ieee80211vap *vap; 3641 3642 vif = LVIF_TO_VIF(lvif); 3643 3644 /* 3645 * If we want "active" interfaces, we need to distinguish on 3646 * whether the driver knows about them or not to be able to 3647 * handle the "resume" case correctly. Skip the ones the 3648 * driver does not know about. 3649 */ 3650 if (active && !lvif->added_to_drv && 3651 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3652 continue; 3653 3654 /* 3655 * If we shall skip interfaces not added to the driver do so 3656 * if we haven't yet. 3657 */ 3658 if (nin_drv && !lvif->added_to_drv) 3659 continue; 3660 3661 /* 3662 * Run the iterator function if we are either not asking 3663 * asking for active only or if the VAP is "running". 3664 */ 3665 /* XXX-BZ probably should have state in the lvif as well. */ 3666 vap = LVIF_TO_VAP(lvif); 3667 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3668 iterfunc(arg, vif->addr, vif); 3669 } 3670 if (atomic) 3671 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3672 } 3673 3674 void 3675 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3676 struct ieee80211_vif *vif, 3677 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3678 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3679 void *arg) 3680 { 3681 3682 UNIMPLEMENTED; 3683 } 3684 3685 void 3686 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3687 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3688 void *), 3689 void *arg) 3690 { 3691 3692 UNIMPLEMENTED; 3693 } 3694 3695 void 3696 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3697 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3698 { 3699 struct lkpi_hw *lhw; 3700 struct lkpi_vif *lvif; 3701 struct lkpi_sta *lsta; 3702 struct ieee80211_sta *sta; 3703 3704 KASSERT(hw != NULL && iterfunc != NULL, 3705 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3706 3707 lhw = HW_TO_LHW(hw); 3708 3709 LKPI_80211_LHW_LVIF_LOCK(lhw); 3710 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3711 3712 LKPI_80211_LVIF_LOCK(lvif); 3713 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3714 if (!lsta->added_to_drv) 3715 continue; 3716 sta = LSTA_TO_STA(lsta); 3717 iterfunc(arg, sta); 3718 } 3719 LKPI_80211_LVIF_UNLOCK(lvif); 3720 } 3721 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3722 } 3723 3724 int 3725 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3726 struct linuxkpi_ieee80211_regdomain *regd) 3727 { 3728 struct lkpi_hw *lhw; 3729 struct ieee80211com *ic; 3730 struct ieee80211_regdomain *rd; 3731 3732 lhw = wiphy_priv(wiphy); 3733 ic = lhw->ic; 3734 3735 rd = &ic->ic_regdomain; 3736 if (rd->isocc[0] == '\0') { 3737 rd->isocc[0] = regd->alpha2[0]; 3738 rd->isocc[1] = regd->alpha2[1]; 3739 } 3740 3741 TODO(); 3742 /* XXX-BZ finish the rest. */ 3743 3744 return (0); 3745 } 3746 3747 void 3748 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3749 struct cfg80211_scan_info *info) 3750 { 3751 struct lkpi_hw *lhw; 3752 struct ieee80211com *ic; 3753 struct ieee80211_scan_state *ss; 3754 3755 lhw = wiphy_priv(hw->wiphy); 3756 ic = lhw->ic; 3757 ss = ic->ic_scan; 3758 3759 ieee80211_scan_done(ss->ss_vap); 3760 3761 LKPI_80211_LHW_LOCK(lhw); 3762 free(lhw->hw_req, M_LKPI80211); 3763 lhw->hw_req = NULL; 3764 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3765 wakeup(lhw); 3766 LKPI_80211_LHW_UNLOCK(lhw); 3767 3768 return; 3769 } 3770 3771 void 3772 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3773 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3774 { 3775 struct epoch_tracker et; 3776 struct lkpi_hw *lhw; 3777 struct ieee80211com *ic; 3778 struct mbuf *m; 3779 struct skb_shared_info *shinfo; 3780 struct ieee80211_rx_status *rx_status; 3781 struct ieee80211_rx_stats rx_stats; 3782 struct ieee80211_node *ni; 3783 struct ieee80211vap *vap; 3784 struct ieee80211_hdr *hdr; 3785 struct lkpi_sta *lsta; 3786 int i, offset, ok; 3787 int8_t rssi; 3788 bool is_beacon; 3789 3790 if (skb->len < 2) { 3791 /* Need 80211 stats here. */ 3792 IMPROVE(); 3793 goto err; 3794 } 3795 3796 /* 3797 * For now do the data copy; we can later improve things. Might even 3798 * have an mbuf backing the skb data then? 3799 */ 3800 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3801 if (m == NULL) 3802 goto err; 3803 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3804 3805 shinfo = skb_shinfo(skb); 3806 offset = m->m_len; 3807 for (i = 0; i < shinfo->nr_frags; i++) { 3808 m_copyback(m, offset, shinfo->frags[i].size, 3809 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3810 shinfo->frags[i].offset); 3811 offset += shinfo->frags[i].size; 3812 } 3813 3814 rx_status = IEEE80211_SKB_RXCB(skb); 3815 3816 hdr = (void *)skb->data; 3817 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3818 3819 #ifdef LINUXKPI_DEBUG_80211 3820 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3821 goto no_trace_beacons; 3822 3823 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3824 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3825 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3826 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3827 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3828 shinfo, shinfo->nr_frags, 3829 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3830 3831 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3832 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3833 3834 /* Implement a dump_rxcb() !!! */ 3835 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3836 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3837 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3838 __func__, 3839 (uintmax_t)rx_status->boottime_ns, 3840 (uintmax_t)rx_status->mactime, 3841 rx_status->device_timestamp, 3842 rx_status->flag, 3843 rx_status->freq, 3844 rx_status->bw, 3845 rx_status->encoding, 3846 rx_status->ampdu_reference, 3847 rx_status->band, 3848 rx_status->chains, 3849 rx_status->chain_signal[0], 3850 rx_status->chain_signal[1], 3851 rx_status->chain_signal[2], 3852 rx_status->chain_signal[3], 3853 rx_status->signal, 3854 rx_status->enc_flags, 3855 rx_status->he_dcm, 3856 rx_status->he_gi, 3857 rx_status->he_ru, 3858 rx_status->zero_length_psdu_type, 3859 rx_status->nss, 3860 rx_status->rate_idx); 3861 no_trace_beacons: 3862 #endif 3863 3864 memset(&rx_stats, 0, sizeof(rx_stats)); 3865 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3866 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3867 rx_stats.c_nf = -96; 3868 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3869 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3870 rssi = rx_status->signal; 3871 else 3872 rssi = rx_stats.c_nf; 3873 /* 3874 * net80211 signal strength data are in .5 dBm units relative to 3875 * the current noise floor (see comment in ieee80211_node.h). 3876 */ 3877 rssi -= rx_stats.c_nf; 3878 rx_stats.c_rssi = rssi * 2; 3879 rx_stats.r_flags |= IEEE80211_R_BAND; 3880 rx_stats.c_band = 3881 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3882 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3883 rx_stats.c_freq = rx_status->freq; 3884 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3885 3886 /* XXX (*sta_statistics)() to get to some of that? */ 3887 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3888 3889 lhw = HW_TO_LHW(hw); 3890 ic = lhw->ic; 3891 3892 ok = ieee80211_add_rx_params(m, &rx_stats); 3893 if (ok == 0) { 3894 m_freem(m); 3895 counter_u64_add(ic->ic_ierrors, 1); 3896 goto err; 3897 } 3898 3899 if (sta != NULL) { 3900 lsta = STA_TO_LSTA(sta); 3901 ni = ieee80211_ref_node(lsta->ni); 3902 } else { 3903 struct ieee80211_frame_min *wh; 3904 3905 wh = mtod(m, struct ieee80211_frame_min *); 3906 ni = ieee80211_find_rxnode(ic, wh); 3907 if (ni != NULL) 3908 lsta = ni->ni_drv_data; 3909 } 3910 3911 if (ni != NULL) 3912 vap = ni->ni_vap; 3913 else 3914 /* 3915 * XXX-BZ can we improve this by looking at the frame hdr 3916 * or other meta-data passed up? 3917 */ 3918 vap = TAILQ_FIRST(&ic->ic_vaps); 3919 3920 #ifdef LINUXKPI_DEBUG_80211 3921 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3922 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3923 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3924 ni, vap, is_beacon ? " beacon" : ""); 3925 #endif 3926 3927 if (ni != NULL && vap != NULL && is_beacon && 3928 rx_status->device_timestamp > 0 && 3929 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3930 struct lkpi_vif *lvif; 3931 struct ieee80211_vif *vif; 3932 struct ieee80211_frame *wh; 3933 3934 wh = mtod(m, struct ieee80211_frame *); 3935 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3936 goto skip_device_ts; 3937 3938 lvif = VAP_TO_LVIF(vap); 3939 vif = LVIF_TO_VIF(lvif); 3940 3941 IMPROVE("TIMING_BEACON_ONLY?"); 3942 /* mac80211 specific (not net80211) so keep it here. */ 3943 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3944 /* 3945 * net80211 should take care of the other information (sync_tsf, 3946 * sync_dtim_count) as otherwise we need to parse the beacon. 3947 */ 3948 } 3949 skip_device_ts: 3950 3951 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3952 ieee80211_radiotap_active_vap(vap)) { 3953 struct lkpi_radiotap_rx_hdr *rtap; 3954 3955 rtap = &lhw->rtap_rx; 3956 rtap->wr_tsft = rx_status->device_timestamp; 3957 rtap->wr_flags = 0; 3958 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3959 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3960 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3961 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3962 #if 0 /* .. or it does not given we strip it below. */ 3963 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3964 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3965 #endif 3966 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3967 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3968 rtap->wr_rate = 0; 3969 IMPROVE(); 3970 /* XXX TODO status->encoding / rate_index / bw */ 3971 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3972 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3973 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3974 rtap->wr_dbm_antsignal = rssi; 3975 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3976 } 3977 3978 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3979 m_adj(m, -IEEE80211_CRC_LEN); 3980 3981 NET_EPOCH_ENTER(et); 3982 if (ni != NULL) { 3983 ok = ieee80211_input_mimo(ni, m); 3984 ieee80211_free_node(ni); 3985 if (ok < 0) 3986 m_freem(m); 3987 } else { 3988 ok = ieee80211_input_mimo_all(ic, m); 3989 /* mbuf got consumed. */ 3990 } 3991 NET_EPOCH_EXIT(et); 3992 3993 #ifdef LINUXKPI_DEBUG_80211 3994 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3995 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3996 #endif 3997 3998 IMPROVE(); 3999 4000 err: 4001 /* The skb is ours so we can free it :-) */ 4002 kfree_skb(skb); 4003 } 4004 4005 uint8_t 4006 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 4007 { 4008 const struct ieee80211_frame *wh; 4009 4010 wh = (const struct ieee80211_frame *)hdr; 4011 return (ieee80211_gettid(wh)); 4012 } 4013 4014 struct wiphy * 4015 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4016 { 4017 struct lkpi_wiphy *lwiphy; 4018 4019 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4020 if (lwiphy == NULL) 4021 return (NULL); 4022 lwiphy->ops = ops; 4023 4024 /* XXX TODO */ 4025 return (LWIPHY_TO_WIPHY(lwiphy)); 4026 } 4027 4028 void 4029 linuxkpi_wiphy_free(struct wiphy *wiphy) 4030 { 4031 struct lkpi_wiphy *lwiphy; 4032 4033 if (wiphy == NULL) 4034 return; 4035 4036 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4037 kfree(lwiphy); 4038 } 4039 4040 uint32_t 4041 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4042 enum nl80211_band band) 4043 { 4044 4045 switch (band) { 4046 case NL80211_BAND_2GHZ: 4047 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4048 break; 4049 case NL80211_BAND_5GHZ: 4050 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4051 break; 4052 default: 4053 /* XXX abort, retry, error, panic? */ 4054 break; 4055 } 4056 4057 return (0); 4058 } 4059 4060 uint32_t 4061 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4062 { 4063 4064 return (ieee80211_mhz2ieee(freq, 0)); 4065 } 4066 4067 static struct lkpi_sta * 4068 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4069 { 4070 struct lkpi_sta *lsta, *temp; 4071 4072 LKPI_80211_LVIF_LOCK(lvif); 4073 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4074 if (lsta->ni == ni) { 4075 LKPI_80211_LVIF_UNLOCK(lvif); 4076 return (lsta); 4077 } 4078 } 4079 LKPI_80211_LVIF_UNLOCK(lvif); 4080 4081 return (NULL); 4082 } 4083 4084 struct ieee80211_sta * 4085 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4086 { 4087 struct lkpi_vif *lvif; 4088 struct lkpi_sta *lsta, *temp; 4089 struct ieee80211_sta *sta; 4090 4091 lvif = VIF_TO_LVIF(vif); 4092 4093 LKPI_80211_LVIF_LOCK(lvif); 4094 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4095 sta = LSTA_TO_STA(lsta); 4096 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4097 LKPI_80211_LVIF_UNLOCK(lvif); 4098 return (sta); 4099 } 4100 } 4101 LKPI_80211_LVIF_UNLOCK(lvif); 4102 return (NULL); 4103 } 4104 4105 struct ieee80211_sta * 4106 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4107 const uint8_t *addr, const uint8_t *ourvifaddr) 4108 { 4109 struct lkpi_hw *lhw; 4110 struct lkpi_vif *lvif; 4111 struct lkpi_sta *lsta; 4112 struct ieee80211_vif *vif; 4113 struct ieee80211_sta *sta; 4114 4115 lhw = wiphy_priv(hw->wiphy); 4116 sta = NULL; 4117 4118 LKPI_80211_LHW_LVIF_LOCK(lhw); 4119 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4120 4121 /* XXX-BZ check our address from the vif. */ 4122 4123 vif = LVIF_TO_VIF(lvif); 4124 if (ourvifaddr != NULL && 4125 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4126 continue; 4127 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4128 if (sta != NULL) 4129 break; 4130 } 4131 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4132 4133 if (sta != NULL) { 4134 lsta = STA_TO_LSTA(sta); 4135 if (!lsta->added_to_drv) 4136 return (NULL); 4137 } 4138 4139 return (sta); 4140 } 4141 4142 struct sk_buff * 4143 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4144 struct ieee80211_txq *txq) 4145 { 4146 struct lkpi_txq *ltxq; 4147 struct sk_buff *skb; 4148 4149 ltxq = TXQ_TO_LTXQ(txq); 4150 ltxq->seen_dequeue = true; 4151 4152 skb = skb_dequeue(<xq->skbq); 4153 4154 return (skb); 4155 } 4156 4157 void 4158 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4159 unsigned long *frame_cnt, unsigned long *byte_cnt) 4160 { 4161 struct lkpi_txq *ltxq; 4162 struct sk_buff *skb; 4163 unsigned long fc, bc; 4164 4165 ltxq = TXQ_TO_LTXQ(txq); 4166 4167 fc = bc = 0; 4168 skb_queue_walk(<xq->skbq, skb) { 4169 fc++; 4170 bc += skb->len; 4171 } 4172 if (frame_cnt) 4173 *frame_cnt = fc; 4174 if (byte_cnt) 4175 *byte_cnt = bc; 4176 4177 /* Validate that this is doing the correct thing. */ 4178 /* Should we keep track on en/dequeue? */ 4179 IMPROVE(); 4180 } 4181 4182 /* 4183 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4184 * The latter tries to derive the success status from the info flags 4185 * passed back from the driver. rawx_mit() saves the ni on the m and the 4186 * m on the skb for us to be able to give feedback to net80211. 4187 */ 4188 void 4189 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4190 int status) 4191 { 4192 struct ieee80211_node *ni; 4193 struct mbuf *m; 4194 4195 m = skb->m; 4196 skb->m = NULL; 4197 4198 if (m != NULL) { 4199 ni = m->m_pkthdr.PH_loc.ptr; 4200 /* Status: 0 is ok, != 0 is error. */ 4201 ieee80211_tx_complete(ni, m, status); 4202 /* ni & mbuf were consumed. */ 4203 } 4204 4205 kfree_skb(skb); 4206 } 4207 4208 void 4209 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4210 { 4211 struct ieee80211_tx_info *info; 4212 struct ieee80211_ratectl_tx_status txs; 4213 struct ieee80211_node *ni; 4214 int status; 4215 4216 info = IEEE80211_SKB_CB(skb); 4217 4218 if (skb->m != NULL) { 4219 struct mbuf *m; 4220 4221 m = skb->m; 4222 ni = m->m_pkthdr.PH_loc.ptr; 4223 memset(&txs, 0, sizeof(txs)); 4224 } else { 4225 ni = NULL; 4226 } 4227 4228 if (info->flags & IEEE80211_TX_STAT_ACK) { 4229 status = 0; /* No error. */ 4230 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4231 } else { 4232 status = 1; 4233 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4234 } 4235 4236 if (ni != NULL) { 4237 int ridx __unused; 4238 #ifdef LINUXKPI_DEBUG_80211 4239 int old_rate; 4240 4241 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4242 #endif 4243 txs.pktlen = skb->len; 4244 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4245 if (info->status.rates[0].count > 1) { 4246 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4247 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4248 } 4249 #if 0 /* Unused in net80211 currently. */ 4250 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4251 txs.final_rate = info->status.rates[0].idx; 4252 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4253 #endif 4254 if (info->status.is_valid_ack_signal) { 4255 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4256 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4257 } 4258 4259 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4260 ieee80211_ratectl_tx_complete(ni, &txs); 4261 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4262 4263 #ifdef LINUXKPI_DEBUG_80211 4264 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4265 printf("TX-RATE: %s: old %d new %d ridx %d, " 4266 "long_retries %d\n", __func__, 4267 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4268 ridx, txs.long_retries); 4269 } 4270 #endif 4271 } 4272 4273 #ifdef LINUXKPI_DEBUG_80211 4274 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4275 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4276 "band %u hw_queue %u tx_time_est %d : " 4277 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4278 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4279 "tx_time %u is_valid_ack_signal %u " 4280 "status_driver_data [ %p %p ]\n", 4281 __func__, hw, skb, status, info->flags, 4282 info->band, info->hw_queue, info->tx_time_est, 4283 info->status.rates[0].idx, info->status.rates[0].count, 4284 info->status.rates[0].flags, 4285 info->status.rates[1].idx, info->status.rates[1].count, 4286 info->status.rates[1].flags, 4287 info->status.rates[2].idx, info->status.rates[2].count, 4288 info->status.rates[2].flags, 4289 info->status.rates[3].idx, info->status.rates[3].count, 4290 info->status.rates[3].flags, 4291 info->status.ack_signal, info->status.ampdu_ack_len, 4292 info->status.ampdu_len, info->status.antenna, 4293 info->status.tx_time, info->status.is_valid_ack_signal, 4294 info->status.status_driver_data[0], 4295 info->status.status_driver_data[1]); 4296 #endif 4297 4298 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4299 } 4300 4301 /* 4302 * This is an internal bandaid for the moment for the way we glue 4303 * skbs and mbufs together for TX. Once we have skbs backed by 4304 * mbufs this should go away. 4305 * This is a public function but kept on the private KPI (lkpi_) 4306 * and is not exposed by a header file. 4307 */ 4308 static void 4309 lkpi_ieee80211_free_skb_mbuf(void *p) 4310 { 4311 struct ieee80211_node *ni; 4312 struct mbuf *m; 4313 4314 if (p == NULL) 4315 return; 4316 4317 m = (struct mbuf *)p; 4318 M_ASSERTPKTHDR(m); 4319 4320 ni = m->m_pkthdr.PH_loc.ptr; 4321 m->m_pkthdr.PH_loc.ptr = NULL; 4322 if (ni != NULL) 4323 ieee80211_free_node(ni); 4324 m_freem(m); 4325 } 4326 4327 void 4328 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4329 struct delayed_work *w, int delay) 4330 { 4331 struct lkpi_hw *lhw; 4332 4333 /* Need to make sure hw is in a stable (non-suspended) state. */ 4334 IMPROVE(); 4335 4336 lhw = HW_TO_LHW(hw); 4337 queue_delayed_work(lhw->workq, w, delay); 4338 } 4339 4340 void 4341 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4342 struct work_struct *w) 4343 { 4344 struct lkpi_hw *lhw; 4345 4346 /* Need to make sure hw is in a stable (non-suspended) state. */ 4347 IMPROVE(); 4348 4349 lhw = HW_TO_LHW(hw); 4350 queue_work(lhw->workq, w); 4351 } 4352 4353 struct sk_buff * 4354 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4355 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4356 { 4357 struct sk_buff *skb; 4358 struct ieee80211_frame *wh; 4359 uint8_t *p; 4360 size_t len; 4361 4362 len = sizeof(*wh); 4363 len += 2 + ssid_len; 4364 4365 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4366 if (skb == NULL) 4367 return (NULL); 4368 4369 skb_reserve(skb, hw->extra_tx_headroom); 4370 4371 wh = skb_put_zero(skb, sizeof(*wh)); 4372 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4373 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4374 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4375 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4376 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4377 4378 p = skb_put(skb, 2 + ssid_len); 4379 *p++ = IEEE80211_ELEMID_SSID; 4380 *p++ = ssid_len; 4381 if (ssid_len > 0) 4382 memcpy(p, ssid, ssid_len); 4383 4384 return (skb); 4385 } 4386 4387 struct sk_buff * 4388 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4389 struct ieee80211_vif *vif) 4390 { 4391 struct lkpi_vif *lvif; 4392 struct ieee80211vap *vap; 4393 struct sk_buff *skb; 4394 struct ieee80211_frame_pspoll *psp; 4395 uint16_t v; 4396 4397 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4398 if (skb == NULL) 4399 return (NULL); 4400 4401 skb_reserve(skb, hw->extra_tx_headroom); 4402 4403 lvif = VIF_TO_LVIF(vif); 4404 vap = LVIF_TO_VAP(lvif); 4405 4406 psp = skb_put_zero(skb, sizeof(*psp)); 4407 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4408 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4409 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4410 memcpy(&psp->i_aid, &v, sizeof(v)); 4411 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4412 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4413 4414 return (skb); 4415 } 4416 4417 struct sk_buff * 4418 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4419 struct ieee80211_vif *vif, bool qos) 4420 { 4421 struct lkpi_vif *lvif; 4422 struct ieee80211vap *vap; 4423 struct sk_buff *skb; 4424 struct ieee80211_frame *nullf; 4425 4426 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4427 if (skb == NULL) 4428 return (NULL); 4429 4430 skb_reserve(skb, hw->extra_tx_headroom); 4431 4432 lvif = VIF_TO_LVIF(vif); 4433 vap = LVIF_TO_VAP(lvif); 4434 4435 nullf = skb_put_zero(skb, sizeof(*nullf)); 4436 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4437 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4438 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4439 4440 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4441 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4442 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4443 4444 return (skb); 4445 } 4446 4447 struct wireless_dev * 4448 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4449 { 4450 struct lkpi_vif *lvif; 4451 4452 lvif = VIF_TO_LVIF(vif); 4453 return (&lvif->wdev); 4454 } 4455 4456 void 4457 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4458 { 4459 struct lkpi_vif *lvif; 4460 struct ieee80211vap *vap; 4461 enum ieee80211_state nstate; 4462 int arg; 4463 4464 lvif = VIF_TO_LVIF(vif); 4465 vap = LVIF_TO_VAP(lvif); 4466 4467 /* 4468 * Go to init; otherwise we need to elaborately check state and 4469 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4470 * Let the statemachine handle all neccessary changes. 4471 */ 4472 nstate = IEEE80211_S_INIT; 4473 arg = 0; /* Not a valid reason. */ 4474 4475 #ifdef LINUXKPI_DEBUG_80211 4476 if (linuxkpi_debug_80211 & D80211_TRACE) 4477 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4478 #endif 4479 ieee80211_new_state(vap, nstate, arg); 4480 } 4481 4482 void 4483 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4484 { 4485 struct lkpi_vif *lvif; 4486 struct ieee80211vap *vap; 4487 4488 lvif = VIF_TO_LVIF(vif); 4489 vap = LVIF_TO_VAP(lvif); 4490 4491 #ifdef LINUXKPI_DEBUG_80211 4492 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4493 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4494 vif, vap, ieee80211_state_name[vap->iv_state]); 4495 #endif 4496 ieee80211_beacon_miss(vap->iv_ic); 4497 } 4498 4499 MODULE_VERSION(linuxkpi_wlan, 1); 4500 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4501 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4502