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