1 /*- 2 * Copyright (c) 2020-2022 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 #include <sys/libkern.h> 57 58 #include <net/if.h> 59 #include <net/if_var.h> 60 #include <net/if_media.h> 61 #include <net/ethernet.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_proto.h> 65 #include <net80211/ieee80211_ratectl.h> 66 #include <net80211/ieee80211_radiotap.h> 67 68 #define LINUXKPI_NET80211 69 #include <net/mac80211.h> 70 71 #include <linux/workqueue.h> 72 #include "linux_80211.h" 73 74 /* #define LKPI_80211_HW_CRYPTO */ 75 76 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 77 78 /* -------------------------------------------------------------------------- */ 79 80 /* Keep public for as long as header files are using it too. */ 81 int linuxkpi_debug_80211; 82 83 #ifdef LINUXKPI_DEBUG_80211 84 SYSCTL_DECL(_compat_linuxkpi); 85 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 86 "LinuxKPI 802.11 compatibility layer"); 87 88 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 89 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 90 91 #ifndef D80211_TODO 92 #define D80211_TODO 0x1 93 #endif 94 #ifndef D80211_IMPROVE 95 #define D80211_IMPROVE 0x2 96 #endif 97 #define D80211_TRACE 0x10 98 #define D80211_TRACEOK 0x20 99 #define D80211_TRACE_TX 0x100 100 #define D80211_TRACE_TX_DUMP 0x200 101 #define D80211_TRACE_RX 0x1000 102 #define D80211_TRACE_RX_DUMP 0x2000 103 #define D80211_TRACE_RX_BEACONS 0x4000 104 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 105 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 106 #define D80211_TRACE_STA 0x10000 107 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 108 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 109 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 110 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 111 #else 112 #define UNIMPLEMENTED do { } while (0) 113 #define TRACEOK() do { } while (0) 114 #endif 115 116 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 117 #ifndef PREP_TX_INFO_DURATION 118 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 119 #endif 120 121 /* c.f. ieee80211_ioctl.c */ 122 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 123 124 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 125 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 126 127 /* IEEE 802.11-05/0257r1 */ 128 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 129 130 const uint8_t tid_to_mac80211_ac[] = { 131 IEEE80211_AC_BE, 132 IEEE80211_AC_BK, 133 IEEE80211_AC_BK, 134 IEEE80211_AC_BE, 135 IEEE80211_AC_VI, 136 IEEE80211_AC_VI, 137 IEEE80211_AC_VO, 138 IEEE80211_AC_VO, 139 #if 0 140 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 141 #endif 142 }; 143 144 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 145 /* 146 * XXX TODO need a "glue layer" to link cfg80211 ops to 147 * mac80211 and to the driver or net80211. 148 * Can we pass some on 1:1? Need to compare the (*f)(). 149 */ 150 }; 151 152 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 153 struct ieee80211_node *); 154 static void lkpi_80211_txq_task(void *, int); 155 static void lkpi_ieee80211_free_skb_mbuf(void *); 156 157 static void 158 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 159 const char *_f, int _l) 160 { 161 162 #ifdef LINUXKPI_DEBUG_80211 163 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 164 return; 165 if (lsta == NULL) 166 return; 167 168 printf("%s:%d lsta %p ni %p sta %p\n", 169 _f, _l, lsta, ni, &lsta->sta); 170 if (ni != NULL) 171 ieee80211_dump_node(NULL, ni); 172 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 173 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 174 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 175 #endif 176 } 177 178 static void 179 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 180 { 181 struct ieee80211_node *ni; 182 183 ni = lsta->ni; 184 185 LKPI_80211_LVIF_LOCK(lvif); 186 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 187 LKPI_80211_LVIF_UNLOCK(lvif); 188 189 lsta->ni = NULL; 190 ni->ni_drv_data = NULL; 191 if (ni != NULL) 192 ieee80211_free_node(ni); 193 194 IMPROVE("more from lkpi_ic_node_free() should happen here."); 195 196 free(lsta, M_LKPI80211); 197 } 198 199 static struct lkpi_sta * 200 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 201 struct ieee80211_hw *hw, struct ieee80211_node *ni) 202 { 203 struct lkpi_sta *lsta; 204 struct lkpi_vif *lvif; 205 struct ieee80211_vif *vif; 206 struct ieee80211_sta *sta; 207 int tid; 208 209 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 210 M_NOWAIT | M_ZERO); 211 if (lsta == NULL) 212 return (NULL); 213 214 lsta->added_to_drv = false; 215 lsta->state = IEEE80211_STA_NOTEXIST; 216 #if 0 217 /* 218 * This needs to be done in node_init() as ieee80211_alloc_node() 219 * will initialise the refcount after us. 220 */ 221 lsta->ni = ieee80211_ref_node(ni); 222 #endif 223 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 224 ni->ni_drv_data = lsta; 225 226 lvif = VAP_TO_LVIF(vap); 227 vif = LVIF_TO_VIF(lvif); 228 sta = LSTA_TO_STA(lsta); 229 230 IEEE80211_ADDR_COPY(sta->addr, mac); 231 for (tid = 0; tid < nitems(sta->txq); tid++) { 232 struct lkpi_txq *ltxq; 233 234 /* We are not limiting ourselves to hw.queues here. */ 235 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 236 M_LKPI80211, M_NOWAIT | M_ZERO); 237 if (ltxq == NULL) 238 goto cleanup; 239 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 240 if (tid == IEEE80211_NUM_TIDS) { 241 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 242 free(ltxq, M_LKPI80211); 243 continue; 244 } 245 IMPROVE("AP/if we support non-STA here too"); 246 ltxq->txq.ac = IEEE80211_AC_VO; 247 } else { 248 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 249 } 250 ltxq->seen_dequeue = false; 251 ltxq->txq.vif = vif; 252 ltxq->txq.tid = tid; 253 ltxq->txq.sta = sta; 254 skb_queue_head_init(<xq->skbq); 255 sta->txq[tid] = <xq->txq; 256 } 257 258 /* Deferred TX path. */ 259 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 260 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 261 mbufq_init(&lsta->txq, IFQ_MAXLEN); 262 263 return (lsta); 264 265 cleanup: 266 for (; tid >= 0; tid--) 267 free(sta->txq[tid], M_LKPI80211); 268 free(lsta, M_LKPI80211); 269 return (NULL); 270 } 271 272 static enum nl80211_band 273 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 274 { 275 276 if (IEEE80211_IS_CHAN_2GHZ(c)) 277 return (NL80211_BAND_2GHZ); 278 else if (IEEE80211_IS_CHAN_5GHZ(c)) 279 return (NL80211_BAND_5GHZ); 280 #ifdef __notyet__ 281 else if () 282 return (NL80211_BAND_6GHZ); 283 else if () 284 return (NL80211_BAND_60GHZ); 285 else if (IEEE80211_IS_CHAN_GSM(c)) 286 return (NL80211_BAND_XXX); 287 #endif 288 else 289 panic("%s: unsupported band. c %p flags %#x\n", 290 __func__, c, c->ic_flags); 291 } 292 293 static uint32_t 294 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 295 { 296 297 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 298 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 299 switch (band) { 300 case NL80211_BAND_2GHZ: 301 return (IEEE80211_CHAN_2GHZ); 302 break; 303 case NL80211_BAND_5GHZ: 304 return (IEEE80211_CHAN_5GHZ); 305 break; 306 case NL80211_BAND_60GHZ: 307 break; 308 case NL80211_BAND_6GHZ: 309 break; 310 default: 311 panic("%s: unsupported band %u\n", __func__, band); 312 break; 313 } 314 315 IMPROVE(); 316 return (0x00); 317 } 318 319 #if 0 320 static enum ieee80211_ac_numbers 321 lkpi_ac_net_to_l80211(int ac) 322 { 323 324 switch (ac) { 325 case WME_AC_VO: 326 return (IEEE80211_AC_VO); 327 case WME_AC_VI: 328 return (IEEE80211_AC_VI); 329 case WME_AC_BE: 330 return (IEEE80211_AC_BE); 331 case WME_AC_BK: 332 return (IEEE80211_AC_BK); 333 default: 334 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 335 return (IEEE80211_AC_BE); 336 } 337 } 338 #endif 339 340 static enum nl80211_iftype 341 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 342 { 343 344 switch (opmode) { 345 case IEEE80211_M_IBSS: 346 return (NL80211_IFTYPE_ADHOC); 347 break; 348 case IEEE80211_M_STA: 349 return (NL80211_IFTYPE_STATION); 350 break; 351 case IEEE80211_M_WDS: 352 return (NL80211_IFTYPE_WDS); 353 break; 354 case IEEE80211_M_HOSTAP: 355 return (NL80211_IFTYPE_AP); 356 break; 357 case IEEE80211_M_MONITOR: 358 return (NL80211_IFTYPE_MONITOR); 359 break; 360 case IEEE80211_M_MBSS: 361 return (NL80211_IFTYPE_MESH_POINT); 362 break; 363 case IEEE80211_M_AHDEMO: 364 /* FALLTHROUGH */ 365 default: 366 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 367 /* FALLTHROUGH */ 368 } 369 return (NL80211_IFTYPE_UNSPECIFIED); 370 } 371 372 #ifdef LKPI_80211_HW_CRYPTO 373 static uint32_t 374 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 375 { 376 377 switch (wlan_cipher_suite) { 378 case WLAN_CIPHER_SUITE_WEP40: 379 return (IEEE80211_CRYPTO_WEP); 380 case WLAN_CIPHER_SUITE_TKIP: 381 return (IEEE80211_CRYPTO_TKIP); 382 case WLAN_CIPHER_SUITE_CCMP: 383 return (IEEE80211_CIPHER_AES_CCM); 384 case WLAN_CIPHER_SUITE_WEP104: 385 return (IEEE80211_CRYPTO_WEP); 386 case WLAN_CIPHER_SUITE_AES_CMAC: 387 case WLAN_CIPHER_SUITE_GCMP: 388 case WLAN_CIPHER_SUITE_GCMP_256: 389 case WLAN_CIPHER_SUITE_CCMP_256: 390 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 391 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 392 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 393 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 394 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 395 break; 396 default: 397 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 398 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 399 } 400 401 return (0); 402 } 403 404 static uint32_t 405 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 406 { 407 408 switch (cipher) { 409 case IEEE80211_CIPHER_TKIP: 410 return (WLAN_CIPHER_SUITE_TKIP); 411 case IEEE80211_CIPHER_AES_CCM: 412 return (WLAN_CIPHER_SUITE_CCMP); 413 case IEEE80211_CIPHER_WEP: 414 if (keylen < 8) 415 return (WLAN_CIPHER_SUITE_WEP40); 416 else 417 return (WLAN_CIPHER_SUITE_WEP104); 418 break; 419 case IEEE80211_CIPHER_AES_OCB: 420 case IEEE80211_CIPHER_TKIPMIC: 421 case IEEE80211_CIPHER_CKIP: 422 case IEEE80211_CIPHER_NONE: 423 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 424 break; 425 default: 426 printf("%s: unknown cipher %#010x\n", __func__, cipher); 427 }; 428 return (0); 429 } 430 #endif 431 432 #ifdef __notyet__ 433 static enum ieee80211_sta_state 434 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 435 { 436 437 /* 438 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 439 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 440 */ 441 switch (state) { 442 case IEEE80211_S_INIT: 443 return (IEEE80211_STA_NOTEXIST); 444 case IEEE80211_S_SCAN: 445 return (IEEE80211_STA_NONE); 446 case IEEE80211_S_AUTH: 447 return (IEEE80211_STA_AUTH); 448 case IEEE80211_S_ASSOC: 449 return (IEEE80211_STA_ASSOC); 450 case IEEE80211_S_RUN: 451 return (IEEE80211_STA_AUTHORIZED); 452 case IEEE80211_S_CAC: 453 case IEEE80211_S_CSA: 454 case IEEE80211_S_SLEEP: 455 default: 456 UNIMPLEMENTED; 457 }; 458 459 return (IEEE80211_STA_NOTEXIST); 460 } 461 #endif 462 463 static struct linuxkpi_ieee80211_channel * 464 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 465 struct ieee80211_channel *c) 466 { 467 struct ieee80211_hw *hw; 468 struct linuxkpi_ieee80211_channel *channels; 469 enum nl80211_band band; 470 int i, nchans; 471 472 hw = LHW_TO_HW(lhw); 473 band = lkpi_net80211_chan_to_nl80211_band(c); 474 if (hw->wiphy->bands[band] == NULL) 475 return (NULL); 476 477 nchans = hw->wiphy->bands[band]->n_channels; 478 if (nchans <= 0) 479 return (NULL); 480 481 channels = hw->wiphy->bands[band]->channels; 482 for (i = 0; i < nchans; i++) { 483 if (channels[i].hw_value == c->ic_ieee) 484 return (&channels[i]); 485 } 486 487 return (NULL); 488 } 489 490 static struct linuxkpi_ieee80211_channel * 491 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 492 { 493 struct linuxkpi_ieee80211_channel *chan; 494 struct ieee80211_channel *c; 495 struct lkpi_hw *lhw; 496 497 chan = NULL; 498 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 499 c = ni->ni_chan; 500 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 501 c = ic->ic_bsschan; 502 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 503 c = ic->ic_curchan; 504 else 505 c = NULL; 506 507 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 508 lhw = ic->ic_softc; 509 chan = lkpi_find_lkpi80211_chan(lhw, c); 510 } 511 512 return (chan); 513 } 514 515 struct linuxkpi_ieee80211_channel * 516 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 517 { 518 enum nl80211_band band; 519 520 for (band = 0; band < NUM_NL80211_BANDS; band++) { 521 struct ieee80211_supported_band *supband; 522 struct linuxkpi_ieee80211_channel *channels; 523 int i; 524 525 supband = wiphy->bands[band]; 526 if (supband == NULL || supband->n_channels == 0) 527 continue; 528 529 channels = supband->channels; 530 for (i = 0; i < supband->n_channels; i++) { 531 if (channels[i].center_freq == freq) 532 return (&channels[i]); 533 } 534 } 535 536 return (NULL); 537 } 538 539 void 540 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 541 { 542 struct lkpi_hw *lhw; 543 struct ieee80211com *ic; 544 struct ieee80211vap *vap; 545 546 lhw = wiphy_priv(wiphy); 547 ic = lhw->ic; 548 549 /* 550 * If we haven't called ieee80211_ifattach() yet 551 * or there is no VAP, there are no scans to flush. 552 */ 553 if (ic == NULL || 554 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 555 return; 556 557 /* Should only happen on the current one? Not seen it late enough. */ 558 IEEE80211_LOCK(ic); 559 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 560 ieee80211_scan_flush(vap); 561 IEEE80211_UNLOCK(ic); 562 } 563 564 #ifdef LKPI_80211_HW_CRYPTO 565 static int 566 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 567 enum set_key_cmd cmd) 568 { 569 struct ieee80211com *ic; 570 struct lkpi_hw *lhw; 571 struct ieee80211_hw *hw; 572 struct lkpi_vif *lvif; 573 struct ieee80211_vif *vif; 574 struct ieee80211_sta *sta; 575 struct ieee80211_node *ni; 576 struct ieee80211_key_conf *kc; 577 int error; 578 579 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 580 581 ic = vap->iv_ic; 582 lhw = ic->ic_softc; 583 hw = LHW_TO_HW(lhw); 584 lvif = VAP_TO_LVIF(vap); 585 vif = LVIF_TO_VIF(lvif); 586 587 memset(&kc, 0, sizeof(kc)); 588 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 589 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 590 k->wk_cipher->ic_cipher, k->wk_keylen); 591 kc->keyidx = k->wk_keyix; 592 #if 0 593 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 594 #endif 595 atomic64_set(&kc->tx_pn, k->wk_keytsc); 596 kc->keylen = k->wk_keylen; 597 memcpy(kc->key, k->wk_key, k->wk_keylen); 598 599 switch (kc->cipher) { 600 case WLAN_CIPHER_SUITE_CCMP: 601 kc->iv_len = k->wk_cipher->ic_header; 602 kc->icv_len = k->wk_cipher->ic_trailer; 603 break; 604 case WLAN_CIPHER_SUITE_TKIP: 605 default: 606 IMPROVE(); 607 return (0); 608 }; 609 610 ni = vap->iv_bss; 611 sta = ieee80211_find_sta(vif, ni->ni_bssid); 612 if (sta != NULL) { 613 struct lkpi_sta *lsta; 614 615 lsta = STA_TO_LSTA(sta); 616 lsta->kc = kc; 617 } 618 619 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 620 if (error != 0) { 621 /* XXX-BZ leaking kc currently */ 622 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 623 return (0); 624 } else { 625 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 626 "flags %#10x\n", __func__, 627 kc->keyidx, kc->hw_key_idx, kc->flags); 628 return (1); 629 } 630 } 631 632 static int 633 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 634 { 635 636 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 637 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 638 } 639 static int 640 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 641 { 642 643 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 644 } 645 #endif 646 647 static u_int 648 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 649 { 650 struct netdev_hw_addr_list *mc_list; 651 struct netdev_hw_addr *addr; 652 653 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 654 __func__, arg, sdl, cnt)); 655 656 mc_list = arg; 657 /* If it is on the list already skip it. */ 658 netdev_hw_addr_list_for_each(addr, mc_list) { 659 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 660 return (0); 661 } 662 663 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 664 if (addr == NULL) 665 return (0); 666 667 INIT_LIST_HEAD(&addr->addr_list); 668 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 669 /* XXX this should be a netdev function? */ 670 list_add(&addr->addr_list, &mc_list->addr_list); 671 mc_list->count++; 672 673 #ifdef LINUXKPI_DEBUG_80211 674 if (linuxkpi_debug_80211 & D80211_TRACE) 675 printf("%s:%d: mc_list count %d: added %6D\n", 676 __func__, __LINE__, mc_list->count, addr->addr, ":"); 677 #endif 678 679 return (1); 680 } 681 682 static void 683 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 684 { 685 struct lkpi_hw *lhw; 686 struct ieee80211_hw *hw; 687 struct netdev_hw_addr_list mc_list; 688 struct list_head *le, *next; 689 struct netdev_hw_addr *addr; 690 struct ieee80211vap *vap; 691 u64 mc; 692 unsigned int changed_flags, total_flags; 693 694 lhw = ic->ic_softc; 695 696 if (lhw->ops->prepare_multicast == NULL || 697 lhw->ops->configure_filter == NULL) 698 return; 699 700 if (!lhw->update_mc && !force) 701 return; 702 703 changed_flags = total_flags = 0; 704 mc_list.count = 0; 705 INIT_LIST_HEAD(&mc_list.addr_list); 706 if (ic->ic_allmulti == 0) { 707 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 708 if_foreach_llmaddr(vap->iv_ifp, 709 lkpi_ic_update_mcast_copy, &mc_list); 710 } else { 711 changed_flags |= FIF_ALLMULTI; 712 } 713 714 hw = LHW_TO_HW(lhw); 715 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 716 /* 717 * XXX-BZ make sure to get this sorted what is a change, 718 * what gets all set; what was already set? 719 */ 720 total_flags = changed_flags; 721 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 722 723 #ifdef LINUXKPI_DEBUG_80211 724 if (linuxkpi_debug_80211 & D80211_TRACE) 725 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 726 __func__, changed_flags, mc_list.count, total_flags); 727 #endif 728 729 if (mc_list.count != 0) { 730 list_for_each_safe(le, next, &mc_list.addr_list) { 731 addr = list_entry(le, struct netdev_hw_addr, addr_list); 732 free(addr, M_LKPI80211); 733 mc_list.count--; 734 } 735 } 736 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 737 __func__, &mc_list, mc_list.count)); 738 } 739 740 static enum ieee80211_bss_changed 741 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 742 struct ieee80211vap *vap, const char *_f, int _l) 743 { 744 enum ieee80211_bss_changed bss_changed; 745 746 bss_changed = 0; 747 748 #ifdef LINUXKPI_DEBUG_80211 749 if (linuxkpi_debug_80211 & D80211_TRACE) 750 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 751 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 752 "sync_device_ts %u bss_changed %#08x\n", 753 __func__, __LINE__, _f, _l, 754 vif->bss_conf.assoc, vif->bss_conf.aid, 755 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 756 vif->bss_conf.sync_dtim_count, 757 (uintmax_t)vif->bss_conf.sync_tsf, 758 vif->bss_conf.sync_device_ts, 759 bss_changed); 760 #endif 761 762 if (vif->bss_conf.beacon_int != ni->ni_intval) { 763 vif->bss_conf.beacon_int = ni->ni_intval; 764 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 765 if (vif->bss_conf.beacon_int < 16) 766 vif->bss_conf.beacon_int = 16; 767 bss_changed |= BSS_CHANGED_BEACON_INT; 768 } 769 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 770 vap->iv_dtim_period > 0) { 771 vif->bss_conf.dtim_period = vap->iv_dtim_period; 772 bss_changed |= BSS_CHANGED_BEACON_INFO; 773 } 774 775 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 776 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 777 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 778 779 #ifdef LINUXKPI_DEBUG_80211 780 if (linuxkpi_debug_80211 & D80211_TRACE) 781 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 782 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 783 "sync_device_ts %u bss_changed %#08x\n", 784 __func__, __LINE__, _f, _l, 785 vif->bss_conf.assoc, vif->bss_conf.aid, 786 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 787 vif->bss_conf.sync_dtim_count, 788 (uintmax_t)vif->bss_conf.sync_tsf, 789 vif->bss_conf.sync_device_ts, 790 bss_changed); 791 #endif 792 793 return (bss_changed); 794 } 795 796 static void 797 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 798 { 799 struct ieee80211_hw *hw; 800 int error; 801 802 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) 803 return; 804 805 hw = LHW_TO_HW(lhw); 806 807 IEEE80211_UNLOCK(lhw->ic); 808 LKPI_80211_LHW_LOCK(lhw); 809 /* Need to cancel the scan. */ 810 lkpi_80211_mo_cancel_hw_scan(hw, vif); 811 812 /* Need to make sure we see ieee80211_scan_completed. */ 813 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 814 LKPI_80211_LHW_UNLOCK(lhw); 815 IEEE80211_LOCK(lhw->ic); 816 817 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 818 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 819 __func__, error, lhw, vif); 820 } 821 822 static void 823 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 824 { 825 struct lkpi_hw *lhw; 826 int error; 827 bool old; 828 829 old = hw->conf.flags & IEEE80211_CONF_IDLE; 830 if (old == new) 831 return; 832 833 hw->conf.flags ^= IEEE80211_CONF_IDLE; 834 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 835 if (error != 0 && error != EOPNOTSUPP) { 836 lhw = HW_TO_LHW(hw); 837 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 838 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 839 } 840 } 841 842 static void 843 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 844 struct lkpi_hw *lhw) 845 { 846 sta->aid = 0; 847 if (vif->bss_conf.assoc) { 848 struct ieee80211_hw *hw; 849 enum ieee80211_bss_changed changed; 850 851 lhw->update_mc = true; 852 lkpi_update_mcast_filter(lhw->ic, true); 853 854 changed = 0; 855 vif->bss_conf.assoc = false; 856 vif->bss_conf.aid = 0; 857 changed |= BSS_CHANGED_ASSOC; 858 /* 859 * This will remove the sta from firmware for iwlwifi. 860 * So confusing that they use state and flags and ... ^%$%#%$^. 861 */ 862 IMPROVE(); 863 hw = LHW_TO_HW(lhw); 864 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 865 changed); 866 867 lkpi_hw_conf_idle(hw, true); 868 } 869 } 870 871 static void 872 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 873 bool dequeue_seen, bool no_emptyq) 874 { 875 struct lkpi_txq *ltxq; 876 int tid; 877 878 /* Wake up all queues to know they are allocated in the driver. */ 879 for (tid = 0; tid < nitems(sta->txq); tid++) { 880 881 if (tid == IEEE80211_NUM_TIDS) { 882 IMPROVE("station specific?"); 883 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 884 continue; 885 } else if (tid >= hw->queues) 886 continue; 887 888 if (sta->txq[tid] == NULL) 889 continue; 890 891 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 892 if (dequeue_seen && !ltxq->seen_dequeue) 893 continue; 894 895 if (no_emptyq && skb_queue_empty(<xq->skbq)) 896 continue; 897 898 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 899 } 900 } 901 902 /* -------------------------------------------------------------------------- */ 903 904 static int 905 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 906 { 907 908 return (0); 909 } 910 911 /* lkpi_iv_newstate() handles the stop scan case generally. */ 912 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 913 914 static int 915 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 916 { 917 struct linuxkpi_ieee80211_channel *chan; 918 struct ieee80211_chanctx_conf *conf; 919 struct lkpi_hw *lhw; 920 struct ieee80211_hw *hw; 921 struct lkpi_vif *lvif; 922 struct ieee80211_vif *vif; 923 struct ieee80211_node *ni; 924 struct lkpi_sta *lsta; 925 struct ieee80211_sta *sta; 926 enum ieee80211_bss_changed bss_changed; 927 struct ieee80211_prep_tx_info prep_tx_info; 928 uint32_t changed; 929 int error; 930 931 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 932 if (chan == NULL) { 933 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 934 return (ESRCH); 935 } 936 937 lhw = vap->iv_ic->ic_softc; 938 hw = LHW_TO_HW(lhw); 939 lvif = VAP_TO_LVIF(vap); 940 vif = LVIF_TO_VIF(lvif); 941 942 ni = ieee80211_ref_node(vap->iv_bss); 943 944 IEEE80211_UNLOCK(vap->iv_ic); 945 946 /* Add chanctx (or if exists, change it). */ 947 if (vif->chanctx_conf != NULL) { 948 conf = vif->chanctx_conf; 949 IMPROVE("diff changes for changed, working on live copy, rcu"); 950 } else { 951 /* Keep separate alloc as in Linux this is rcu managed? */ 952 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 953 M_LKPI80211, M_WAITOK | M_ZERO); 954 } 955 956 conf->rx_chains_dynamic = 1; 957 conf->rx_chains_static = 1; 958 conf->radar_enabled = 959 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 960 conf->def.chan = chan; 961 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 962 conf->def.center_freq1 = chan->center_freq; 963 conf->def.center_freq2 = 0; 964 /* Responder ... */ 965 conf->min_def.chan = chan; 966 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 967 conf->min_def.center_freq1 = chan->center_freq; 968 conf->min_def.center_freq2 = 0; 969 IMPROVE("currently 20_NOHT only"); 970 971 error = 0; 972 if (vif->chanctx_conf != NULL) { 973 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 974 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 975 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 976 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 977 lkpi_80211_mo_change_chanctx(hw, conf, changed); 978 } else { 979 error = lkpi_80211_mo_add_chanctx(hw, conf); 980 if (error == 0 || error == EOPNOTSUPP) { 981 vif->bss_conf.chandef.chan = conf->def.chan; 982 vif->bss_conf.chandef.width = conf->def.width; 983 vif->bss_conf.chandef.center_freq1 = 984 conf->def.center_freq1; 985 vif->bss_conf.chandef.center_freq2 = 986 conf->def.center_freq2; 987 } else { 988 goto out; 989 } 990 /* Assign vif chanctx. */ 991 if (error == 0) 992 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 993 if (error == EOPNOTSUPP) 994 error = 0; 995 if (error != 0) { 996 lkpi_80211_mo_remove_chanctx(hw, conf); 997 free(conf, M_LKPI80211); 998 goto out; 999 } 1000 } 1001 IMPROVE("update radiotap chan fields too"); 1002 1003 /* Set bss info (bss_info_changed). */ 1004 bss_changed = 0; 1005 vif->bss_conf.bssid = ni->ni_bssid; 1006 bss_changed |= BSS_CHANGED_BSSID; 1007 vif->bss_conf.txpower = ni->ni_txpower; 1008 bss_changed |= BSS_CHANGED_TXPOWER; 1009 vif->bss_conf.idle = false; 1010 bss_changed |= BSS_CHANGED_IDLE; 1011 1012 /* Should almost assert it is this. */ 1013 vif->bss_conf.assoc = false; 1014 vif->bss_conf.aid = 0; 1015 1016 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1017 1018 /* RATES */ 1019 IMPROVE("bss info: not all needs to come now and rates are missing"); 1020 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1021 1022 /* 1023 * This is a bandaid for now. If we went through (*iv_update_bss)() 1024 * and then removed the lsta we end up here without a lsta and have 1025 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1026 * would normally do. 1027 * XXX-BZ I do not like this but currently we have no good way of 1028 * intercepting the bss swap and state changes and packets going out 1029 * workflow so live with this. It is a compat layer after all. 1030 */ 1031 if (ni->ni_drv_data == NULL) { 1032 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1033 if (lsta == NULL) { 1034 error = ENOMEM; 1035 goto out; 1036 } 1037 lsta->ni = ieee80211_ref_node(ni); 1038 } else { 1039 lsta = ni->ni_drv_data; 1040 } 1041 1042 /* Insert the [l]sta into the list of known stations. */ 1043 LKPI_80211_LVIF_LOCK(lvif); 1044 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1045 LKPI_80211_LVIF_UNLOCK(lvif); 1046 1047 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1048 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1049 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1050 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1051 sta = LSTA_TO_STA(lsta); 1052 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1053 if (error != 0) { 1054 IMPROVE("do we need to undo the chan ctx?"); 1055 goto out; 1056 } 1057 #if 0 1058 lsta->added_to_drv = true; /* mo manages. */ 1059 #endif 1060 1061 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1062 1063 /* 1064 * Wakeup all queues now that sta is there so we have as much time to 1065 * possibly prepare the queue in the driver to be ready for the 1st 1066 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1067 * is no guarantee or way to check. 1068 * XXX-BZ and by now we know that this does not work on all drivers 1069 * for all queues. 1070 */ 1071 lkpi_wake_tx_queues(hw, sta, false, false); 1072 1073 /* Start mgd_prepare_tx. */ 1074 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1075 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1076 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1077 lsta->in_mgd = true; 1078 1079 /* 1080 * What is going to happen next: 1081 * - <twiddle> .. we should end up in "auth_to_assoc" 1082 * - event_callback 1083 * - update sta_state (NONE to AUTH) 1084 * - mgd_complete_tx 1085 * (ideally we'd do that on a callback for something else ...) 1086 */ 1087 1088 out: 1089 IEEE80211_LOCK(vap->iv_ic); 1090 if (ni != NULL) 1091 ieee80211_free_node(ni); 1092 return (error); 1093 } 1094 1095 static int 1096 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1097 { 1098 struct lkpi_hw *lhw; 1099 struct ieee80211_hw *hw; 1100 struct lkpi_vif *lvif; 1101 struct ieee80211_vif *vif; 1102 struct ieee80211_node *ni; 1103 struct lkpi_sta *lsta; 1104 struct ieee80211_sta *sta; 1105 struct ieee80211_prep_tx_info prep_tx_info; 1106 int error; 1107 1108 lhw = vap->iv_ic->ic_softc; 1109 hw = LHW_TO_HW(lhw); 1110 lvif = VAP_TO_LVIF(vap); 1111 vif = LVIF_TO_VIF(lvif); 1112 1113 /* Keep ni around. */ 1114 ni = ieee80211_ref_node(vap->iv_bss); 1115 lsta = ni->ni_drv_data; 1116 sta = LSTA_TO_STA(lsta); 1117 1118 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1119 1120 IEEE80211_UNLOCK(vap->iv_ic); 1121 1122 /* flush, drop. */ 1123 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1124 1125 /* Wake tx queues to get packet(s) out. */ 1126 lkpi_wake_tx_queues(hw, sta, true, true); 1127 1128 /* flush, no drop */ 1129 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1130 1131 /* End mgd_complete_tx. */ 1132 if (lsta->in_mgd) { 1133 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1134 prep_tx_info.success = false; 1135 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1136 lsta->in_mgd = false; 1137 } 1138 1139 /* sync_rx_queues */ 1140 lkpi_80211_mo_sync_rx_queues(hw); 1141 1142 /* sta_pre_rcu_remove */ 1143 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1144 1145 /* Take the station down. */ 1146 1147 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1148 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1149 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1150 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1151 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1152 if (error != 0) { 1153 IMPROVE("do we need to undo the chan ctx?"); 1154 goto out; 1155 } 1156 #if 0 1157 lsta->added_to_drv = false; /* mo manages. */ 1158 #endif 1159 1160 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1161 1162 lkpi_lsta_remove(lsta, lvif); 1163 1164 /* conf_tx */ 1165 1166 /* Take the chan ctx down. */ 1167 if (vif->chanctx_conf != NULL) { 1168 struct ieee80211_chanctx_conf *conf; 1169 1170 conf = vif->chanctx_conf; 1171 /* Remove vif context. */ 1172 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1173 /* NB: vif->chanctx_conf is NULL now. */ 1174 1175 /* Remove chan ctx. */ 1176 lkpi_80211_mo_remove_chanctx(hw, conf); 1177 free(conf, M_LKPI80211); 1178 } 1179 1180 out: 1181 IEEE80211_LOCK(vap->iv_ic); 1182 if (ni != NULL) 1183 ieee80211_free_node(ni); 1184 return (error); 1185 } 1186 1187 static int 1188 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1189 { 1190 int error; 1191 1192 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1193 if (error == 0) 1194 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1195 return (error); 1196 } 1197 1198 static int 1199 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1200 { 1201 struct lkpi_hw *lhw; 1202 struct ieee80211_hw *hw; 1203 struct lkpi_vif *lvif; 1204 struct ieee80211_vif *vif; 1205 struct ieee80211_node *ni; 1206 struct lkpi_sta *lsta; 1207 struct ieee80211_sta *sta; 1208 struct ieee80211_prep_tx_info prep_tx_info; 1209 int error; 1210 1211 lhw = vap->iv_ic->ic_softc; 1212 hw = LHW_TO_HW(lhw); 1213 lvif = VAP_TO_LVIF(vap); 1214 vif = LVIF_TO_VIF(lvif); 1215 1216 IEEE80211_UNLOCK(vap->iv_ic); 1217 ni = NULL; 1218 1219 /* Finish auth. */ 1220 IMPROVE("event callback"); 1221 1222 /* Update sta_state (NONE to AUTH). */ 1223 ni = ieee80211_ref_node(vap->iv_bss); 1224 lsta = ni->ni_drv_data; 1225 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1226 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1227 "NONE: %#x\n", __func__, lsta, lsta->state)); 1228 sta = LSTA_TO_STA(lsta); 1229 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1230 if (error != 0) 1231 goto out; 1232 1233 /* End mgd_complete_tx. */ 1234 if (lsta->in_mgd) { 1235 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1236 prep_tx_info.success = true; 1237 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1238 lsta->in_mgd = false; 1239 } 1240 1241 /* Now start assoc. */ 1242 1243 /* Start mgd_prepare_tx. */ 1244 if (!lsta->in_mgd) { 1245 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1246 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1247 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1248 lsta->in_mgd = true; 1249 } 1250 1251 /* Wake tx queue to get packet out. */ 1252 lkpi_wake_tx_queues(hw, sta, true, true); 1253 1254 /* 1255 * <twiddle> .. we end up in "assoc_to_run" 1256 * - update sta_state (AUTH to ASSOC) 1257 * - conf_tx [all] 1258 * - bss_info_changed (assoc, aid, ssid, ..) 1259 * - change_chanctx (if needed) 1260 * - event_callback 1261 * - mgd_complete_tx 1262 */ 1263 1264 out: 1265 IEEE80211_LOCK(vap->iv_ic); 1266 if (ni != NULL) 1267 ieee80211_free_node(ni); 1268 return (error); 1269 } 1270 1271 /* auth_to_auth, assoc_to_assoc. */ 1272 static int 1273 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1274 { 1275 struct lkpi_hw *lhw; 1276 struct ieee80211_hw *hw; 1277 struct lkpi_vif *lvif; 1278 struct ieee80211_vif *vif; 1279 struct ieee80211_node *ni; 1280 struct lkpi_sta *lsta; 1281 struct ieee80211_prep_tx_info prep_tx_info; 1282 1283 lhw = vap->iv_ic->ic_softc; 1284 hw = LHW_TO_HW(lhw); 1285 lvif = VAP_TO_LVIF(vap); 1286 vif = LVIF_TO_VIF(lvif); 1287 1288 ni = ieee80211_ref_node(vap->iv_bss); 1289 1290 IEEE80211_UNLOCK(vap->iv_ic); 1291 lsta = ni->ni_drv_data; 1292 1293 IMPROVE("event callback?"); 1294 1295 /* End mgd_complete_tx. */ 1296 if (lsta->in_mgd) { 1297 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1298 prep_tx_info.success = false; 1299 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1300 lsta->in_mgd = false; 1301 } 1302 1303 /* Now start assoc. */ 1304 1305 /* Start mgd_prepare_tx. */ 1306 if (!lsta->in_mgd) { 1307 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1308 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1309 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1310 lsta->in_mgd = true; 1311 } 1312 1313 IEEE80211_LOCK(vap->iv_ic); 1314 if (ni != NULL) 1315 ieee80211_free_node(ni); 1316 1317 return (0); 1318 } 1319 1320 static int 1321 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1322 { 1323 struct lkpi_hw *lhw; 1324 struct ieee80211_hw *hw; 1325 struct lkpi_vif *lvif; 1326 struct ieee80211_vif *vif; 1327 struct ieee80211_node *ni; 1328 struct lkpi_sta *lsta; 1329 struct ieee80211_sta *sta; 1330 struct ieee80211_prep_tx_info prep_tx_info; 1331 enum ieee80211_bss_changed bss_changed; 1332 int error; 1333 1334 lhw = vap->iv_ic->ic_softc; 1335 hw = LHW_TO_HW(lhw); 1336 lvif = VAP_TO_LVIF(vap); 1337 vif = LVIF_TO_VIF(lvif); 1338 1339 /* Keep ni around. */ 1340 ni = ieee80211_ref_node(vap->iv_bss); 1341 lsta = ni->ni_drv_data; 1342 sta = LSTA_TO_STA(lsta); 1343 1344 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1345 1346 IEEE80211_UNLOCK(vap->iv_ic); 1347 1348 /* flush, drop. */ 1349 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1350 1351 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1352 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1353 !lsta->in_mgd) { 1354 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1355 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1356 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1357 lsta->in_mgd = true; 1358 } 1359 1360 IEEE80211_LOCK(vap->iv_ic); 1361 1362 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1363 error = lvif->iv_newstate(vap, nstate, arg); 1364 if (error != 0) 1365 goto outni; 1366 1367 IEEE80211_UNLOCK(vap->iv_ic); 1368 1369 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1370 1371 /* Wake tx queues to get packet(s) out. */ 1372 lkpi_wake_tx_queues(hw, sta, true, true); 1373 1374 /* flush, no drop */ 1375 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1376 1377 /* End mgd_complete_tx. */ 1378 if (lsta->in_mgd) { 1379 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1380 prep_tx_info.success = false; 1381 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1382 lsta->in_mgd = false; 1383 } 1384 1385 /* sync_rx_queues */ 1386 lkpi_80211_mo_sync_rx_queues(hw); 1387 1388 /* sta_pre_rcu_remove */ 1389 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1390 1391 /* Take the station down. */ 1392 1393 /* Update sta and change state (from AUTH) to NONE. */ 1394 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1395 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1396 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1397 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1398 if (error != 0) 1399 goto out; 1400 1401 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1402 1403 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1404 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1405 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1406 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1407 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1408 if (error != 0) { 1409 IMPROVE("do we need to undo the chan ctx?"); 1410 goto out; 1411 } 1412 #if 0 1413 lsta->added_to_drv = false; /* mo manages. */ 1414 #endif 1415 1416 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1417 1418 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1419 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1420 lkpi_disassoc(sta, vif, lhw); 1421 1422 IMPROVE("Any bss_info changes to announce?"); 1423 bss_changed = 0; 1424 vif->bss_conf.qos = 0; 1425 bss_changed |= BSS_CHANGED_QOS; 1426 vif->bss_conf.ssid_len = 0; 1427 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1428 bss_changed |= BSS_CHANGED_BSSID; 1429 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1430 1431 lkpi_lsta_remove(lsta, lvif); 1432 1433 /* conf_tx */ 1434 1435 /* Take the chan ctx down. */ 1436 if (vif->chanctx_conf != NULL) { 1437 struct ieee80211_chanctx_conf *conf; 1438 1439 conf = vif->chanctx_conf; 1440 /* Remove vif context. */ 1441 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1442 /* NB: vif->chanctx_conf is NULL now. */ 1443 1444 /* Remove chan ctx. */ 1445 lkpi_80211_mo_remove_chanctx(hw, conf); 1446 free(conf, M_LKPI80211); 1447 } 1448 1449 error = EALREADY; 1450 out: 1451 IEEE80211_LOCK(vap->iv_ic); 1452 outni: 1453 if (ni != NULL) 1454 ieee80211_free_node(ni); 1455 return (error); 1456 } 1457 1458 static int 1459 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1460 { 1461 int error; 1462 1463 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1464 if (error != 0 && error != EALREADY) 1465 return (error); 1466 1467 /* At this point iv_bss is long a new node! */ 1468 1469 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1470 return (error); 1471 } 1472 1473 static int 1474 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1475 { 1476 int error; 1477 1478 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1479 return (error); 1480 } 1481 1482 static int 1483 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1484 { 1485 int error; 1486 1487 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1488 return (error); 1489 } 1490 1491 static int 1492 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1493 { 1494 struct lkpi_hw *lhw; 1495 struct ieee80211_hw *hw; 1496 struct lkpi_vif *lvif; 1497 struct ieee80211_vif *vif; 1498 struct ieee80211_node *ni; 1499 struct lkpi_sta *lsta; 1500 struct ieee80211_sta *sta; 1501 struct ieee80211_prep_tx_info prep_tx_info; 1502 enum ieee80211_bss_changed bss_changed; 1503 int error; 1504 1505 lhw = vap->iv_ic->ic_softc; 1506 hw = LHW_TO_HW(lhw); 1507 lvif = VAP_TO_LVIF(vap); 1508 vif = LVIF_TO_VIF(lvif); 1509 1510 IEEE80211_UNLOCK(vap->iv_ic); 1511 ni = NULL; 1512 1513 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1514 "and to lesser extend ieee80211_notify_node_join"); 1515 1516 /* Finish assoc. */ 1517 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1518 ni = ieee80211_ref_node(vap->iv_bss); 1519 lsta = ni->ni_drv_data; 1520 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1521 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1522 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1523 sta = LSTA_TO_STA(lsta); 1524 sta->aid = IEEE80211_NODE_AID(ni); 1525 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1526 if (error != 0) 1527 goto out; 1528 1529 IMPROVE("wme / conf_tx [all]"); 1530 1531 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1532 bss_changed = 0; 1533 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1534 vif->bss_conf.assoc = true; 1535 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1536 bss_changed |= BSS_CHANGED_ASSOC; 1537 } 1538 /* We set SSID but this is not BSSID! */ 1539 vif->bss_conf.ssid_len = ni->ni_esslen; 1540 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1541 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1542 vif->bss_conf.use_short_preamble) { 1543 vif->bss_conf.use_short_preamble ^= 1; 1544 /* bss_changed |= BSS_CHANGED_??? */ 1545 } 1546 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1547 vif->bss_conf.use_short_slot) { 1548 vif->bss_conf.use_short_slot ^= 1; 1549 /* bss_changed |= BSS_CHANGED_??? */ 1550 } 1551 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1552 vif->bss_conf.qos) { 1553 vif->bss_conf.qos ^= 1; 1554 bss_changed |= BSS_CHANGED_QOS; 1555 } 1556 1557 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1558 1559 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1560 1561 /* - change_chanctx (if needed) 1562 * - event_callback 1563 */ 1564 1565 /* End mgd_complete_tx. */ 1566 if (lsta->in_mgd) { 1567 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1568 prep_tx_info.success = true; 1569 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1570 lsta->in_mgd = false; 1571 } 1572 1573 lkpi_hw_conf_idle(hw, false); 1574 1575 /* 1576 * And then: 1577 * - (more packets)? 1578 * - set_key 1579 * - set_default_unicast_key 1580 * - set_key (?) 1581 * - ipv6_addr_change (?) 1582 */ 1583 /* Prepare_multicast && configure_filter. */ 1584 lhw->update_mc = true; 1585 lkpi_update_mcast_filter(vap->iv_ic, true); 1586 1587 if (!ieee80211_node_is_authorized(ni)) { 1588 IMPROVE("net80211 does not consider node authorized"); 1589 } 1590 1591 /* Update sta_state (ASSOC to AUTHORIZED). */ 1592 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1593 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1594 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1595 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1596 if (error != 0) { 1597 IMPROVE("undo some changes?"); 1598 goto out; 1599 } 1600 1601 /* - drv_config (?) 1602 * - bss_info_changed 1603 * - set_rekey_data (?) 1604 * 1605 * And now we should be passing packets. 1606 */ 1607 IMPROVE("Need that bssid setting, and the keys"); 1608 1609 bss_changed = 0; 1610 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1611 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1612 1613 out: 1614 IEEE80211_LOCK(vap->iv_ic); 1615 if (ni != NULL) 1616 ieee80211_free_node(ni); 1617 return (error); 1618 } 1619 1620 static int 1621 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1622 { 1623 int error; 1624 1625 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1626 if (error == 0) 1627 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1628 return (error); 1629 } 1630 1631 static int 1632 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1633 { 1634 struct lkpi_hw *lhw; 1635 struct ieee80211_hw *hw; 1636 struct lkpi_vif *lvif; 1637 struct ieee80211_vif *vif; 1638 struct ieee80211_node *ni; 1639 struct lkpi_sta *lsta; 1640 struct ieee80211_sta *sta; 1641 struct ieee80211_prep_tx_info prep_tx_info; 1642 #if 0 1643 enum ieee80211_bss_changed bss_changed; 1644 #endif 1645 int error; 1646 1647 lhw = vap->iv_ic->ic_softc; 1648 hw = LHW_TO_HW(lhw); 1649 lvif = VAP_TO_LVIF(vap); 1650 vif = LVIF_TO_VIF(lvif); 1651 1652 /* Keep ni around. */ 1653 ni = ieee80211_ref_node(vap->iv_bss); 1654 lsta = ni->ni_drv_data; 1655 sta = LSTA_TO_STA(lsta); 1656 1657 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1658 1659 IEEE80211_UNLOCK(vap->iv_ic); 1660 1661 /* flush, drop. */ 1662 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1663 1664 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1665 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1666 !lsta->in_mgd) { 1667 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1668 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1669 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1670 lsta->in_mgd = true; 1671 } 1672 1673 IEEE80211_LOCK(vap->iv_ic); 1674 1675 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1676 error = lvif->iv_newstate(vap, nstate, arg); 1677 if (error != 0) 1678 goto outni; 1679 1680 IEEE80211_UNLOCK(vap->iv_ic); 1681 1682 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1683 1684 /* Wake tx queues to get packet(s) out. */ 1685 lkpi_wake_tx_queues(hw, sta, true, true); 1686 1687 /* flush, no drop */ 1688 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1689 1690 /* End mgd_complete_tx. */ 1691 if (lsta->in_mgd) { 1692 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1693 prep_tx_info.success = false; 1694 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1695 lsta->in_mgd = false; 1696 } 1697 1698 #if 0 1699 /* sync_rx_queues */ 1700 lkpi_80211_mo_sync_rx_queues(hw); 1701 1702 /* sta_pre_rcu_remove */ 1703 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1704 #endif 1705 1706 /* Take the station down. */ 1707 1708 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1709 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1710 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1711 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1712 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1713 if (error != 0) 1714 goto out; 1715 1716 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1717 1718 /* Update sta_state (ASSOC to AUTH). */ 1719 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1720 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1721 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1722 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1723 if (error != 0) 1724 goto out; 1725 1726 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1727 1728 #if 0 1729 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1730 lkpi_disassoc(sta, vif, lhw); 1731 #endif 1732 1733 error = EALREADY; 1734 out: 1735 IEEE80211_LOCK(vap->iv_ic); 1736 outni: 1737 if (ni != NULL) 1738 ieee80211_free_node(ni); 1739 return (error); 1740 } 1741 1742 static int 1743 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1744 { 1745 struct lkpi_hw *lhw; 1746 struct ieee80211_hw *hw; 1747 struct lkpi_vif *lvif; 1748 struct ieee80211_vif *vif; 1749 struct ieee80211_node *ni; 1750 struct lkpi_sta *lsta; 1751 struct ieee80211_sta *sta; 1752 struct ieee80211_prep_tx_info prep_tx_info; 1753 enum ieee80211_bss_changed bss_changed; 1754 int error; 1755 1756 lhw = vap->iv_ic->ic_softc; 1757 hw = LHW_TO_HW(lhw); 1758 lvif = VAP_TO_LVIF(vap); 1759 vif = LVIF_TO_VIF(lvif); 1760 1761 /* Keep ni around. */ 1762 ni = ieee80211_ref_node(vap->iv_bss); 1763 lsta = ni->ni_drv_data; 1764 sta = LSTA_TO_STA(lsta); 1765 1766 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1767 1768 IEEE80211_UNLOCK(vap->iv_ic); 1769 1770 /* flush, drop. */ 1771 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1772 1773 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1774 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1775 !lsta->in_mgd) { 1776 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1777 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1778 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1779 lsta->in_mgd = true; 1780 } 1781 1782 IEEE80211_LOCK(vap->iv_ic); 1783 1784 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1785 error = lvif->iv_newstate(vap, nstate, arg); 1786 if (error != 0) 1787 goto outni; 1788 1789 IEEE80211_UNLOCK(vap->iv_ic); 1790 1791 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1792 1793 /* Wake tx queues to get packet(s) out. */ 1794 lkpi_wake_tx_queues(hw, sta, true, true); 1795 1796 /* flush, no drop */ 1797 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1798 1799 /* End mgd_complete_tx. */ 1800 if (lsta->in_mgd) { 1801 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1802 prep_tx_info.success = false; 1803 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1804 lsta->in_mgd = false; 1805 } 1806 1807 /* sync_rx_queues */ 1808 lkpi_80211_mo_sync_rx_queues(hw); 1809 1810 /* sta_pre_rcu_remove */ 1811 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1812 1813 /* Take the station down. */ 1814 1815 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1816 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1817 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1818 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1819 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1820 if (error != 0) 1821 goto out; 1822 1823 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1824 1825 /* Update sta_state (ASSOC to AUTH). */ 1826 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1827 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1828 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1829 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1830 if (error != 0) 1831 goto out; 1832 1833 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1834 1835 /* Update sta and change state (from AUTH) to NONE. */ 1836 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1837 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1838 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1839 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1840 if (error != 0) 1841 goto out; 1842 1843 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1844 1845 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1846 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1847 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1848 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1849 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1850 if (error != 0) { 1851 IMPROVE("do we need to undo the chan ctx?"); 1852 goto out; 1853 } 1854 #if 0 1855 lsta->added_to_drv = false; /* mo manages. */ 1856 #endif 1857 1858 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1859 1860 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1861 /* 1862 * One would expect this to happen when going off AUTHORIZED. 1863 * See comment there; removes the sta from fw. 1864 */ 1865 lkpi_disassoc(sta, vif, lhw); 1866 1867 IMPROVE("Any bss_info changes to announce?"); 1868 bss_changed = 0; 1869 vif->bss_conf.qos = 0; 1870 bss_changed |= BSS_CHANGED_QOS; 1871 vif->bss_conf.ssid_len = 0; 1872 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1873 bss_changed |= BSS_CHANGED_BSSID; 1874 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1875 1876 lkpi_lsta_remove(lsta, lvif); 1877 1878 /* conf_tx */ 1879 1880 /* Take the chan ctx down. */ 1881 if (vif->chanctx_conf != NULL) { 1882 struct ieee80211_chanctx_conf *conf; 1883 1884 conf = vif->chanctx_conf; 1885 /* Remove vif context. */ 1886 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1887 /* NB: vif->chanctx_conf is NULL now. */ 1888 1889 /* Remove chan ctx. */ 1890 lkpi_80211_mo_remove_chanctx(hw, conf); 1891 free(conf, M_LKPI80211); 1892 } 1893 1894 error = EALREADY; 1895 out: 1896 IEEE80211_LOCK(vap->iv_ic); 1897 outni: 1898 if (ni != NULL) 1899 ieee80211_free_node(ni); 1900 return (error); 1901 } 1902 1903 static int 1904 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1905 { 1906 1907 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1908 } 1909 1910 static int 1911 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1912 { 1913 int error; 1914 1915 error = lkpi_sta_run_to_init(vap, nstate, arg); 1916 if (error != 0 && error != EALREADY) 1917 return (error); 1918 1919 /* At this point iv_bss is long a new node! */ 1920 1921 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1922 return (error); 1923 } 1924 1925 /* -------------------------------------------------------------------------- */ 1926 1927 /* 1928 * The matches the documented state changes in net80211::sta_newstate(). 1929 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1930 * there are "invalid" (so there is a room for failure here). 1931 */ 1932 struct fsm_state { 1933 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1934 enum ieee80211_state ostate; 1935 enum ieee80211_state nstate; 1936 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1937 } sta_state_fsm[] = { 1938 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1939 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1940 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1941 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1942 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1943 1944 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1945 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1946 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1947 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1948 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1949 1950 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1951 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1952 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1953 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1954 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1955 1956 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1957 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1958 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1959 1960 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1961 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1962 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1963 1964 /* Dummy at the end without handler. */ 1965 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1966 }; 1967 1968 static int 1969 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1970 { 1971 struct ieee80211com *ic; 1972 struct lkpi_hw *lhw; 1973 struct lkpi_vif *lvif; 1974 struct ieee80211_vif *vif; 1975 struct fsm_state *s; 1976 enum ieee80211_state ostate; 1977 int error; 1978 1979 ic = vap->iv_ic; 1980 IEEE80211_LOCK_ASSERT(ic); 1981 ostate = vap->iv_state; 1982 1983 #ifdef LINUXKPI_DEBUG_80211 1984 if (linuxkpi_debug_80211 & D80211_TRACE) 1985 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1986 __func__, __LINE__, vap, nstate, arg); 1987 #endif 1988 1989 if (vap->iv_opmode == IEEE80211_M_STA) { 1990 1991 lhw = ic->ic_softc; 1992 lvif = VAP_TO_LVIF(vap); 1993 vif = LVIF_TO_VIF(lvif); 1994 1995 /* No need to replicate this in most state handlers. */ 1996 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1997 lkpi_stop_hw_scan(lhw, vif); 1998 1999 s = sta_state_fsm; 2000 2001 } else { 2002 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2003 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2004 return (ENOSYS); 2005 } 2006 2007 error = 0; 2008 for (; s->handler != NULL; s++) { 2009 if (ostate == s->ostate && nstate == s->nstate) { 2010 #ifdef LINUXKPI_DEBUG_80211 2011 if (linuxkpi_debug_80211 & D80211_TRACE) 2012 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2013 " %d (%s): arg %d.\n", __func__, 2014 ostate, ieee80211_state_name[ostate], 2015 nstate, ieee80211_state_name[nstate], arg); 2016 #endif 2017 error = s->handler(vap, nstate, arg); 2018 break; 2019 } 2020 } 2021 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2022 2023 if (s->handler == NULL) { 2024 IMPROVE("turn this into a KASSERT\n"); 2025 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2026 "%d (%s) -> %d (%s)\n", __func__, 2027 ostate, ieee80211_state_name[ostate], 2028 nstate, ieee80211_state_name[nstate]); 2029 return (ENOSYS); 2030 } 2031 2032 if (error == EALREADY) { 2033 #ifdef LINUXKPI_DEBUG_80211 2034 if (linuxkpi_debug_80211 & D80211_TRACE) 2035 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2036 "%d (%s): iv_newstate already handled: %d.\n", 2037 __func__, ostate, ieee80211_state_name[ostate], 2038 nstate, ieee80211_state_name[nstate], error); 2039 #endif 2040 return (0); 2041 } 2042 2043 if (error != 0) { 2044 /* XXX-BZ currently expected so ignore. */ 2045 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2046 "%d (%s) -> %d (%s)\n", __func__, error, 2047 ostate, ieee80211_state_name[ostate], 2048 nstate, ieee80211_state_name[nstate]); 2049 /* return (error); */ 2050 } 2051 2052 #ifdef LINUXKPI_DEBUG_80211 2053 if (linuxkpi_debug_80211 & D80211_TRACE) 2054 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2055 "calling net80211 parent\n", 2056 __func__, __LINE__, vap, nstate, arg); 2057 #endif 2058 2059 return (lvif->iv_newstate(vap, nstate, arg)); 2060 } 2061 2062 /* -------------------------------------------------------------------------- */ 2063 2064 /* 2065 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2066 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2067 * new node without us knowing and thus our ni/lsta are out of sync. 2068 */ 2069 static struct ieee80211_node * 2070 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2071 { 2072 struct lkpi_vif *lvif; 2073 struct ieee80211_node *obss; 2074 struct lkpi_sta *lsta; 2075 struct ieee80211_sta *sta; 2076 2077 obss = vap->iv_bss; 2078 2079 #ifdef LINUXKPI_DEBUG_80211 2080 if (linuxkpi_debug_80211 & D80211_TRACE) 2081 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2082 "ni %p ni_drv_data %p\n", __func__, 2083 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2084 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2085 #endif 2086 2087 /* Nothing to copy from. Just return. */ 2088 if (obss == NULL || obss->ni_drv_data == NULL) 2089 goto out; 2090 2091 /* Nothing to copy to. Just return. */ 2092 IMPROVE("clearing the obss might still be needed?"); 2093 if (ni == NULL) 2094 goto out; 2095 2096 /* Nothing changed? panic? */ 2097 if (obss == ni) 2098 goto out; 2099 2100 lsta = obss->ni_drv_data; 2101 obss->ni_drv_data = ni->ni_drv_data; 2102 ni->ni_drv_data = lsta; 2103 if (lsta != NULL) { 2104 lsta->ni = ni; 2105 sta = LSTA_TO_STA(lsta); 2106 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2107 } 2108 lsta = obss->ni_drv_data; 2109 if (lsta != NULL) { 2110 lsta->ni = obss; 2111 sta = LSTA_TO_STA(lsta); 2112 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2113 } 2114 2115 out: 2116 lvif = VAP_TO_LVIF(vap); 2117 return (lvif->iv_update_bss(vap, ni)); 2118 } 2119 2120 static int 2121 lkpi_ic_wme_update(struct ieee80211com *ic) 2122 { 2123 /* This needs queuing and go at the right moment. */ 2124 #ifdef WITH_WME_UPDATE 2125 struct ieee80211vap *vap; 2126 struct lkpi_hw *lhw; 2127 struct ieee80211_hw *hw; 2128 struct lkpi_vif *lvif; 2129 struct ieee80211_vif *vif; 2130 struct chanAccParams chp; 2131 struct wmeParams wmeparr[WME_NUM_AC]; 2132 struct ieee80211_tx_queue_params txqp; 2133 enum ieee80211_bss_changed changed; 2134 int error; 2135 uint16_t ac; 2136 #endif 2137 2138 IMPROVE(); 2139 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2140 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2141 2142 #ifdef WITH_WME_UPDATE 2143 vap = TAILQ_FIRST(&ic->ic_vaps); 2144 if (vap == NULL) 2145 return (0); 2146 2147 /* We should factor this out into per-vap (*wme_update). */ 2148 lhw = ic->ic_softc; 2149 if (lhw->ops->conf_tx == NULL) 2150 return (0); 2151 2152 /* XXX-BZ check amount of hw queues */ 2153 hw = LHW_TO_HW(lhw); 2154 lvif = VAP_TO_LVIF(vap); 2155 vif = LVIF_TO_VIF(lvif); 2156 2157 ieee80211_wme_ic_getparams(ic, &chp); 2158 IEEE80211_LOCK(ic); 2159 for (ac = 0; ac < WME_NUM_AC; ac++) 2160 wmeparr[ac] = chp.cap_wmeParams[ac]; 2161 IEEE80211_UNLOCK(ic); 2162 2163 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2164 LKPI_80211_LHW_LOCK(lhw); 2165 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2166 struct wmeParams *wmep; 2167 2168 /* XXX-BZ should keep this in lvif? */ 2169 wmep = &wmeparr[ac]; 2170 bzero(&txqp, sizeof(txqp)); 2171 txqp.cw_min = wmep->wmep_logcwmin; 2172 txqp.cw_max = wmep->wmep_logcwmax; 2173 txqp.txop = wmep->wmep_txopLimit; 2174 txqp.aifs = wmep->wmep_aifsn; 2175 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2176 if (error != 0) 2177 printf("%s: conf_tx ac %u failed %d\n", 2178 __func__, ac, error); 2179 } 2180 LKPI_80211_LHW_UNLOCK(lhw); 2181 changed = BSS_CHANGED_QOS; 2182 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2183 #endif 2184 2185 return (0); 2186 } 2187 2188 static struct ieee80211vap * 2189 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2190 int unit, enum ieee80211_opmode opmode, int flags, 2191 const uint8_t bssid[IEEE80211_ADDR_LEN], 2192 const uint8_t mac[IEEE80211_ADDR_LEN]) 2193 { 2194 struct lkpi_hw *lhw; 2195 struct ieee80211_hw *hw; 2196 struct lkpi_vif *lvif; 2197 struct ieee80211vap *vap; 2198 struct ieee80211_vif *vif; 2199 enum ieee80211_bss_changed changed; 2200 size_t len; 2201 int error, i; 2202 2203 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2204 return (NULL); 2205 2206 lhw = ic->ic_softc; 2207 hw = LHW_TO_HW(lhw); 2208 2209 len = sizeof(*lvif); 2210 len += hw->vif_data_size; /* vif->drv_priv */ 2211 2212 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2213 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2214 TAILQ_INIT(&lvif->lsta_head); 2215 vap = LVIF_TO_VAP(lvif); 2216 2217 vif = LVIF_TO_VIF(lvif); 2218 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2219 vif->p2p = false; 2220 vif->probe_req_reg = false; 2221 vif->type = lkpi_opmode_to_vif_type(opmode); 2222 lvif->wdev.iftype = vif->type; 2223 /* Need to fill in other fields as well. */ 2224 IMPROVE(); 2225 2226 /* XXX-BZ hardcoded for now! */ 2227 #if 1 2228 vif->chanctx_conf = NULL; 2229 vif->bss_conf.idle = true; 2230 vif->bss_conf.ps = false; 2231 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2232 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2233 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2234 vif->bss_conf.qos = false; 2235 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2236 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2237 vif->bss_conf.assoc = false; 2238 vif->bss_conf.aid = 0; 2239 /* 2240 * We need to initialize it to something as the bss_info_changed call 2241 * will try to copy from it in iwlwifi and NULL is a panic. 2242 * We will set the proper one in scan_to_auth() before being assoc. 2243 * NB: the logic there with using an array as bssid_override and checking 2244 * for non-NULL later is flawed but in their workflow does not seem to 2245 * matter. 2246 */ 2247 vif->bss_conf.bssid = zerobssid; 2248 #endif 2249 #if 0 2250 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2251 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2252 vif->bss_conf.beacon_int = ic->ic_bintval; 2253 /* iwlwifi bug. */ 2254 if (vif->bss_conf.beacon_int < 16) 2255 vif->bss_conf.beacon_int = 16; 2256 #endif 2257 2258 /* Setup queue defaults; driver may override in (*add_interface). */ 2259 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2260 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2261 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2262 else if (hw->queues >= IEEE80211_NUM_ACS) 2263 vif->hw_queue[i] = i; 2264 else 2265 vif->hw_queue[i] = 0; 2266 } 2267 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2268 2269 IMPROVE(); 2270 2271 error = lkpi_80211_mo_start(hw); 2272 if (error != 0) { 2273 printf("%s: failed to start hw: %d\n", __func__, error); 2274 mtx_destroy(&lvif->mtx); 2275 free(lvif, M_80211_VAP); 2276 return (NULL); 2277 } 2278 2279 error = lkpi_80211_mo_add_interface(hw, vif); 2280 if (error != 0) { 2281 IMPROVE(); /* XXX-BZ mo_stop()? */ 2282 printf("%s: failed to add interface: %d\n", __func__, error); 2283 mtx_destroy(&lvif->mtx); 2284 free(lvif, M_80211_VAP); 2285 return (NULL); 2286 } 2287 2288 LKPI_80211_LHW_LVIF_LOCK(lhw); 2289 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2290 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2291 2292 /* Set bss_info. */ 2293 changed = 0; 2294 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2295 2296 /* conf_tx setup; default WME? */ 2297 2298 /* Force MC init. */ 2299 lkpi_update_mcast_filter(ic, true); 2300 2301 IMPROVE(); 2302 2303 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2304 2305 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2306 lvif->iv_newstate = vap->iv_newstate; 2307 vap->iv_newstate = lkpi_iv_newstate; 2308 lvif->iv_update_bss = vap->iv_update_bss; 2309 vap->iv_update_bss = lkpi_iv_update_bss; 2310 2311 /* Key management. */ 2312 if (lhw->ops->set_key != NULL) { 2313 #ifdef LKPI_80211_HW_CRYPTO 2314 vap->iv_key_set = lkpi_iv_key_set; 2315 vap->iv_key_delete = lkpi_iv_key_delete; 2316 #endif 2317 } 2318 2319 ieee80211_ratectl_init(vap); 2320 2321 /* Complete setup. */ 2322 ieee80211_vap_attach(vap, ieee80211_media_change, 2323 ieee80211_media_status, mac); 2324 2325 if (hw->max_listen_interval == 0) 2326 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2327 hw->conf.listen_interval = hw->max_listen_interval; 2328 ic->ic_set_channel(ic); 2329 2330 /* XXX-BZ do we need to be able to update these? */ 2331 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2332 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2333 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2334 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2335 /* any others? */ 2336 IMPROVE(); 2337 2338 return (vap); 2339 } 2340 2341 static void 2342 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2343 { 2344 struct ieee80211com *ic; 2345 struct lkpi_hw *lhw; 2346 struct ieee80211_hw *hw; 2347 struct lkpi_vif *lvif; 2348 struct ieee80211_vif *vif; 2349 2350 lvif = VAP_TO_LVIF(vap); 2351 vif = LVIF_TO_VIF(lvif); 2352 ic = vap->iv_ic; 2353 lhw = ic->ic_softc; 2354 hw = LHW_TO_HW(lhw); 2355 2356 LKPI_80211_LHW_LVIF_LOCK(lhw); 2357 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2358 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2359 lkpi_80211_mo_remove_interface(hw, vif); 2360 2361 ieee80211_ratectl_deinit(vap); 2362 ieee80211_vap_detach(vap); 2363 mtx_destroy(&lvif->mtx); 2364 free(lvif, M_80211_VAP); 2365 } 2366 2367 static void 2368 lkpi_ic_update_mcast(struct ieee80211com *ic) 2369 { 2370 2371 lkpi_update_mcast_filter(ic, false); 2372 TRACEOK(); 2373 } 2374 2375 static void 2376 lkpi_ic_update_promisc(struct ieee80211com *ic) 2377 { 2378 2379 UNIMPLEMENTED; 2380 } 2381 2382 static void 2383 lkpi_ic_update_chw(struct ieee80211com *ic) 2384 { 2385 2386 UNIMPLEMENTED; 2387 } 2388 2389 /* Start / stop device. */ 2390 static void 2391 lkpi_ic_parent(struct ieee80211com *ic) 2392 { 2393 struct lkpi_hw *lhw; 2394 struct ieee80211_hw *hw; 2395 int error; 2396 bool start_all; 2397 2398 IMPROVE(); 2399 2400 lhw = ic->ic_softc; 2401 hw = LHW_TO_HW(lhw); 2402 start_all = false; 2403 2404 if (ic->ic_nrunning > 0) { 2405 error = lkpi_80211_mo_start(hw); 2406 if (error == 0) 2407 start_all = true; 2408 } else { 2409 lkpi_80211_mo_stop(hw); 2410 } 2411 2412 if (start_all) 2413 ieee80211_start_all(ic); 2414 } 2415 2416 bool 2417 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2418 size_t ie_ids_len) 2419 { 2420 int i; 2421 2422 for (i = 0; i < ie_ids_len; i++) { 2423 if (ie == *ie_ids) 2424 return (true); 2425 } 2426 2427 return (false); 2428 } 2429 2430 /* Return true if skipped; false if error. */ 2431 bool 2432 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2433 { 2434 size_t x; 2435 uint8_t l; 2436 2437 x = *xp; 2438 2439 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2440 __func__, x, ies_len, ies)); 2441 l = ies[x + 1]; 2442 x += 2 + l; 2443 2444 if (x > ies_len) 2445 return (false); 2446 2447 *xp = x; 2448 return (true); 2449 } 2450 2451 static uint8_t * 2452 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2453 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2454 { 2455 struct ieee80211_supported_band *supband; 2456 struct linuxkpi_ieee80211_channel *channels; 2457 const struct ieee80211_channel *chan; 2458 const struct ieee80211_rateset *rs; 2459 uint8_t *pb; 2460 int band, i; 2461 2462 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2463 if ((band_mask & (1 << band)) == 0) 2464 continue; 2465 2466 supband = hw->wiphy->bands[band]; 2467 /* 2468 * This should not happen; 2469 * band_mask is a bitmask of valid bands to scan on. 2470 */ 2471 if (supband == NULL || supband->n_channels == 0) 2472 continue; 2473 2474 /* Find a first channel to get the mode and rates from. */ 2475 channels = supband->channels; 2476 chan = NULL; 2477 for (i = 0; i < supband->n_channels; i++) { 2478 2479 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2480 continue; 2481 2482 chan = ieee80211_find_channel(vap->iv_ic, 2483 channels[i].center_freq, 0); 2484 if (chan != NULL) 2485 break; 2486 } 2487 2488 /* This really should not happen. */ 2489 if (chan == NULL) 2490 continue; 2491 2492 pb = p; 2493 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2494 p = ieee80211_add_rates(p, rs); 2495 p = ieee80211_add_xrates(p, rs); 2496 2497 scan_ies->ies[band] = pb; 2498 scan_ies->len[band] = p - pb; 2499 } 2500 2501 /* Add common_ies */ 2502 pb = p; 2503 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2504 vap->iv_wpa_ie != NULL) { 2505 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2506 p += 2 + vap->iv_wpa_ie[1]; 2507 } 2508 if (vap->iv_appie_probereq != NULL) { 2509 memcpy(p, vap->iv_appie_probereq->ie_data, 2510 vap->iv_appie_probereq->ie_len); 2511 p += vap->iv_appie_probereq->ie_len; 2512 } 2513 scan_ies->common_ies = pb; 2514 scan_ies->common_ie_len = p - pb; 2515 2516 return (p); 2517 } 2518 2519 static void 2520 lkpi_ic_scan_start(struct ieee80211com *ic) 2521 { 2522 struct lkpi_hw *lhw; 2523 struct ieee80211_hw *hw; 2524 struct lkpi_vif *lvif; 2525 struct ieee80211_vif *vif; 2526 struct ieee80211_scan_state *ss; 2527 struct ieee80211vap *vap; 2528 int error; 2529 2530 lhw = ic->ic_softc; 2531 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2532 /* A scan is still running. */ 2533 return; 2534 } 2535 2536 ss = ic->ic_scan; 2537 vap = ss->ss_vap; 2538 if (vap->iv_state != IEEE80211_S_SCAN) { 2539 IMPROVE("We need to be able to scan if not in S_SCAN"); 2540 return; 2541 } 2542 2543 hw = LHW_TO_HW(lhw); 2544 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2545 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2546 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2547 sw_scan: 2548 lvif = VAP_TO_LVIF(vap); 2549 vif = LVIF_TO_VIF(lvif); 2550 2551 if (vap->iv_state == IEEE80211_S_SCAN) 2552 lkpi_hw_conf_idle(hw, false); 2553 2554 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2555 /* net80211::scan_start() handled PS for us. */ 2556 IMPROVE(); 2557 /* XXX Also means it is too late to flush queues? 2558 * need to check iv_sta_ps or overload? */ 2559 /* XXX want to adjust ss end time/ maxdwell? */ 2560 2561 } else { 2562 struct ieee80211_channel *c; 2563 struct ieee80211_scan_request *hw_req; 2564 struct linuxkpi_ieee80211_channel *lc, **cpp; 2565 struct cfg80211_ssid *ssids; 2566 struct cfg80211_scan_6ghz_params *s6gp; 2567 size_t chan_len, nchan, ssids_len, s6ghzlen; 2568 int band, i, ssid_count, common_ie_len; 2569 uint32_t band_mask; 2570 uint8_t *ie, *ieend; 2571 2572 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2573 IMPROVE("individual band scans not yet supported"); 2574 /* In theory net80211 would have to drive this. */ 2575 return; 2576 } 2577 2578 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2579 ssids_len = ssid_count * sizeof(*ssids); 2580 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2581 2582 band_mask = 0; 2583 nchan = 0; 2584 for (i = ss->ss_next; i < ss->ss_last; i++) { 2585 nchan++; 2586 band = lkpi_net80211_chan_to_nl80211_band( 2587 ss->ss_chans[ss->ss_next + i]); 2588 band_mask |= (1 << band); 2589 } 2590 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2591 2592 common_ie_len = 0; 2593 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2594 vap->iv_wpa_ie != NULL) 2595 common_ie_len += vap->iv_wpa_ie[1]; 2596 if (vap->iv_appie_probereq != NULL) 2597 common_ie_len += vap->iv_appie_probereq->ie_len; 2598 2599 /* We would love to check this at an earlier stage... */ 2600 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2601 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2602 "wiphy->max_scan_ie_len %d\n", __func__, 2603 common_ie_len, hw->wiphy->max_scan_ie_len); 2604 } 2605 2606 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2607 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2608 2609 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2610 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2611 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2612 2613 hw_req->req.flags = 0; /* XXX ??? */ 2614 /* hw_req->req.wdev */ 2615 hw_req->req.wiphy = hw->wiphy; 2616 hw_req->req.no_cck = false; /* XXX */ 2617 #if 0 2618 /* This seems to pessimise default scanning behaviour. */ 2619 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2620 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2621 #endif 2622 #ifdef __notyet__ 2623 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2624 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2625 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2626 #endif 2627 2628 hw_req->req.n_channels = nchan; 2629 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2630 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2631 for (i = 0; i < nchan; i++) { 2632 *(cpp + i) = 2633 (struct linuxkpi_ieee80211_channel *)(lc + i); 2634 } 2635 for (i = 0; i < nchan; i++) { 2636 c = ss->ss_chans[ss->ss_next + i]; 2637 2638 lc->hw_value = c->ic_ieee; 2639 lc->center_freq = c->ic_freq; 2640 /* lc->flags */ 2641 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2642 lc->max_power = c->ic_maxpower; 2643 /* lc-> ... */ 2644 lc++; 2645 } 2646 2647 hw_req->req.n_ssids = ssid_count; 2648 if (hw_req->req.n_ssids > 0) { 2649 ssids = (struct cfg80211_ssid *)lc; 2650 hw_req->req.ssids = ssids; 2651 for (i = 0; i < ssid_count; i++) { 2652 ssids->ssid_len = ss->ss_ssid[i].len; 2653 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2654 ss->ss_ssid[i].len); 2655 ssids++; 2656 } 2657 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2658 } else { 2659 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2660 } 2661 2662 /* 6GHz one day. */ 2663 hw_req->req.n_6ghz_params = 0; 2664 hw_req->req.scan_6ghz_params = NULL; 2665 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2666 /* s6gp->... */ 2667 2668 ie = ieend = (uint8_t *)s6gp; 2669 /* Copy per-band IEs, copy common IEs */ 2670 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2671 hw_req->req.ie = ie; 2672 hw_req->req.ie_len = ieend - ie; 2673 2674 lvif = VAP_TO_LVIF(vap); 2675 vif = LVIF_TO_VIF(lvif); 2676 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2677 if (error != 0) { 2678 ieee80211_cancel_scan(vap); 2679 2680 free(hw_req, M_LKPI80211); 2681 lhw->hw_req = NULL; 2682 2683 /* 2684 * XXX-SIGH magic number. 2685 * rtw88 has a magic "return 1" if offloading scan is 2686 * not possible. Fall back to sw scan in that case. 2687 */ 2688 if (error == 1) { 2689 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2690 ieee80211_start_scan(vap, 2691 IEEE80211_SCAN_ACTIVE | 2692 IEEE80211_SCAN_NOPICK | 2693 IEEE80211_SCAN_ONCE, 2694 IEEE80211_SCAN_FOREVER, 2695 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2696 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2697 vap->iv_des_nssid, vap->iv_des_ssid); 2698 goto sw_scan; 2699 } 2700 2701 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2702 __func__, error); 2703 } 2704 } 2705 } 2706 2707 static void 2708 lkpi_ic_scan_end(struct ieee80211com *ic) 2709 { 2710 struct lkpi_hw *lhw; 2711 2712 lhw = ic->ic_softc; 2713 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2714 return; 2715 } 2716 2717 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) { 2718 struct ieee80211_scan_state *ss; 2719 struct ieee80211vap *vap; 2720 struct ieee80211_hw *hw; 2721 struct lkpi_vif *lvif; 2722 struct ieee80211_vif *vif; 2723 2724 ss = ic->ic_scan; 2725 vap = ss->ss_vap; 2726 hw = LHW_TO_HW(lhw); 2727 lvif = VAP_TO_LVIF(vap); 2728 vif = LVIF_TO_VIF(lvif); 2729 2730 lkpi_80211_mo_sw_scan_complete(hw, vif); 2731 2732 /* Send PS to stop buffering if n80211 does not for us? */ 2733 2734 if (vap->iv_state == IEEE80211_S_SCAN) 2735 lkpi_hw_conf_idle(hw, true); 2736 } 2737 } 2738 2739 static void 2740 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2741 unsigned long maxdwell) 2742 { 2743 struct lkpi_hw *lhw; 2744 2745 lhw = ss->ss_ic->ic_softc; 2746 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2747 lhw->ic_scan_curchan(ss, maxdwell); 2748 } 2749 2750 static void 2751 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2752 { 2753 struct lkpi_hw *lhw; 2754 2755 lhw = ss->ss_ic->ic_softc; 2756 if ((lhw->scan_flags & LKPI_LHW_SCAN_HW) == 0) 2757 lhw->ic_scan_mindwell(ss); 2758 } 2759 2760 static void 2761 lkpi_ic_set_channel(struct ieee80211com *ic) 2762 { 2763 struct lkpi_hw *lhw; 2764 struct ieee80211_hw *hw; 2765 struct ieee80211_channel *c; 2766 struct linuxkpi_ieee80211_channel *chan; 2767 int error; 2768 2769 lhw = ic->ic_softc; 2770 2771 /* If we do not support (*config)() save us the work. */ 2772 if (lhw->ops->config == NULL) 2773 return; 2774 2775 /* If we have a hw_scan running do not switch channels. */ 2776 if ((lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2777 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) 2778 return; 2779 2780 c = ic->ic_curchan; 2781 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2782 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2783 c, lhw->ops->config); 2784 return; 2785 } 2786 2787 chan = lkpi_find_lkpi80211_chan(lhw, c); 2788 if (chan == NULL) { 2789 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2790 c, chan); 2791 return; 2792 } 2793 2794 /* XXX max power for scanning? */ 2795 IMPROVE(); 2796 2797 hw = LHW_TO_HW(lhw); 2798 cfg80211_chandef_create(&hw->conf.chandef, chan, 2799 NL80211_CHAN_NO_HT); 2800 2801 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2802 if (error != 0 && error != EOPNOTSUPP) { 2803 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2804 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2805 /* XXX should we unroll to the previous chandef? */ 2806 IMPROVE(); 2807 } else { 2808 /* Update radiotap channels as well. */ 2809 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2810 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2811 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2812 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2813 } 2814 2815 /* Currently PS is hard coded off! Not sure it belongs here. */ 2816 IMPROVE(); 2817 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2818 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2819 hw->conf.flags &= ~IEEE80211_CONF_PS; 2820 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2821 if (error != 0 && error != EOPNOTSUPP) 2822 ic_printf(ic, "ERROR: %s: config %#0x returned " 2823 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2824 error); 2825 } 2826 } 2827 2828 static struct ieee80211_node * 2829 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2830 const uint8_t mac[IEEE80211_ADDR_LEN]) 2831 { 2832 struct ieee80211com *ic; 2833 struct lkpi_hw *lhw; 2834 struct ieee80211_node *ni; 2835 struct ieee80211_hw *hw; 2836 struct lkpi_sta *lsta; 2837 2838 ic = vap->iv_ic; 2839 lhw = ic->ic_softc; 2840 2841 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2842 if (lhw->ic_node_alloc == NULL) 2843 return (NULL); 2844 2845 ni = lhw->ic_node_alloc(vap, mac); 2846 if (ni == NULL) 2847 return (NULL); 2848 2849 hw = LHW_TO_HW(lhw); 2850 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2851 if (lsta == NULL) { 2852 if (lhw->ic_node_free != NULL) 2853 lhw->ic_node_free(ni); 2854 return (NULL); 2855 } 2856 2857 return (ni); 2858 } 2859 2860 static int 2861 lkpi_ic_node_init(struct ieee80211_node *ni) 2862 { 2863 struct ieee80211com *ic; 2864 struct lkpi_hw *lhw; 2865 struct lkpi_sta *lsta; 2866 int error; 2867 2868 ic = ni->ni_ic; 2869 lhw = ic->ic_softc; 2870 2871 if (lhw->ic_node_init != NULL) { 2872 error = lhw->ic_node_init(ni); 2873 if (error != 0) 2874 return (error); 2875 } 2876 2877 lsta = ni->ni_drv_data; 2878 2879 /* Now take the reference before linking it to the table. */ 2880 lsta->ni = ieee80211_ref_node(ni); 2881 2882 /* XXX-BZ Sync other state over. */ 2883 IMPROVE(); 2884 2885 return (0); 2886 } 2887 2888 static void 2889 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2890 { 2891 struct ieee80211com *ic; 2892 struct lkpi_hw *lhw; 2893 2894 ic = ni->ni_ic; 2895 lhw = ic->ic_softc; 2896 2897 /* XXX-BZ remove from driver, ... */ 2898 IMPROVE(); 2899 2900 if (lhw->ic_node_cleanup != NULL) 2901 lhw->ic_node_cleanup(ni); 2902 } 2903 2904 static void 2905 lkpi_ic_node_free(struct ieee80211_node *ni) 2906 { 2907 struct ieee80211com *ic; 2908 struct lkpi_hw *lhw; 2909 struct lkpi_sta *lsta; 2910 2911 ic = ni->ni_ic; 2912 lhw = ic->ic_softc; 2913 lsta = ni->ni_drv_data; 2914 if (lsta == NULL) 2915 goto out; 2916 2917 /* XXX-BZ free resources, ... */ 2918 IMPROVE(); 2919 2920 /* Flush mbufq (make sure to release ni refs!). */ 2921 #ifdef __notyet__ 2922 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2923 __func__, lsta, mbufq_len(&lsta->txq))); 2924 #endif 2925 /* Drain taskq. */ 2926 2927 /* Drain sta->txq[] */ 2928 mtx_destroy(&lsta->txq_mtx); 2929 2930 /* Remove lsta if added_to_drv. */ 2931 2932 /* Remove lsta from vif */ 2933 /* Remove ref from lsta node... */ 2934 /* Free lsta. */ 2935 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 2936 2937 out: 2938 if (lhw->ic_node_free != NULL) 2939 lhw->ic_node_free(ni); 2940 } 2941 2942 static int 2943 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2944 const struct ieee80211_bpf_params *params __unused) 2945 { 2946 struct lkpi_sta *lsta; 2947 2948 lsta = ni->ni_drv_data; 2949 2950 /* Queue the packet and enqueue the task to handle it. */ 2951 LKPI_80211_LSTA_LOCK(lsta); 2952 mbufq_enqueue(&lsta->txq, m); 2953 LKPI_80211_LSTA_UNLOCK(lsta); 2954 2955 #ifdef LINUXKPI_DEBUG_80211 2956 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2957 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2958 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2959 mbufq_len(&lsta->txq)); 2960 #endif 2961 2962 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2963 return (0); 2964 } 2965 2966 static void 2967 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2968 { 2969 struct ieee80211_node *ni; 2970 #ifndef LKPI_80211_HW_CRYPTO 2971 struct ieee80211_frame *wh; 2972 #endif 2973 struct ieee80211_key *k; 2974 struct sk_buff *skb; 2975 struct ieee80211com *ic; 2976 struct lkpi_hw *lhw; 2977 struct ieee80211_hw *hw; 2978 struct lkpi_vif *lvif; 2979 struct ieee80211_vif *vif; 2980 struct ieee80211_channel *c; 2981 struct ieee80211_tx_control control; 2982 struct ieee80211_tx_info *info; 2983 struct ieee80211_sta *sta; 2984 struct ieee80211_hdr *hdr; 2985 void *buf; 2986 uint8_t ac, tid; 2987 2988 M_ASSERTPKTHDR(m); 2989 #ifdef LINUXKPI_DEBUG_80211 2990 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2991 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2992 #endif 2993 2994 ni = lsta->ni; 2995 k = NULL; 2996 #ifndef LKPI_80211_HW_CRYPTO 2997 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2998 wh = mtod(m, struct ieee80211_frame *); 2999 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3000 /* Retrieve key for TX && do software encryption. */ 3001 k = ieee80211_crypto_encap(ni, m); 3002 if (k == NULL) { 3003 ieee80211_free_node(ni); 3004 m_freem(m); 3005 return; 3006 } 3007 } 3008 #endif 3009 3010 ic = ni->ni_ic; 3011 lhw = ic->ic_softc; 3012 hw = LHW_TO_HW(lhw); 3013 c = ni->ni_chan; 3014 3015 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3016 struct lkpi_radiotap_tx_hdr *rtap; 3017 3018 rtap = &lhw->rtap_tx; 3019 rtap->wt_flags = 0; 3020 if (k != NULL) 3021 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3022 if (m->m_flags & M_FRAG) 3023 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3024 IMPROVE(); 3025 rtap->wt_rate = 0; 3026 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3027 rtap->wt_chan_freq = htole16(c->ic_freq); 3028 rtap->wt_chan_flags = htole16(c->ic_flags); 3029 } 3030 3031 ieee80211_radiotap_tx(ni->ni_vap, m); 3032 } 3033 3034 /* 3035 * net80211 should handle hw->extra_tx_headroom. 3036 * Though for as long as we are copying we don't mind. 3037 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3038 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3039 */ 3040 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3041 if (skb == NULL) { 3042 printf("XXX ERROR %s: skb alloc failed\n", __func__); 3043 ieee80211_free_node(ni); 3044 m_freem(m); 3045 return; 3046 } 3047 skb_reserve(skb, hw->extra_tx_headroom); 3048 3049 /* XXX-BZ we need a SKB version understanding mbuf. */ 3050 /* Save the mbuf for ieee80211_tx_complete(). */ 3051 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3052 skb->m = m; 3053 #if 0 3054 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3055 #else 3056 buf = skb_put(skb, m->m_pkthdr.len); 3057 m_copydata(m, 0, m->m_pkthdr.len, buf); 3058 #endif 3059 /* Save the ni. */ 3060 m->m_pkthdr.PH_loc.ptr = ni; 3061 3062 lvif = VAP_TO_LVIF(ni->ni_vap); 3063 vif = LVIF_TO_VIF(lvif); 3064 3065 hdr = (void *)skb->data; 3066 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3067 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3068 skb->priority = 0; 3069 ac = IEEE80211_AC_BE; 3070 } else { 3071 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3072 ac = tid_to_mac80211_ac[tid & 7]; 3073 } 3074 skb_set_queue_mapping(skb, ac); 3075 3076 info = IEEE80211_SKB_CB(skb); 3077 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3078 /* Slight delay; probably only happens on scanning so fine? */ 3079 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3080 c = ic->ic_curchan; 3081 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3082 info->hw_queue = vif->hw_queue[ac]; 3083 if (m->m_flags & M_EAPOL) 3084 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3085 info->control.vif = vif; 3086 /* XXX-BZ info->control.rates */ 3087 3088 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3089 if (lsta != NULL) { 3090 sta = LSTA_TO_STA(lsta); 3091 #ifdef LKPI_80211_HW_CRYPTO 3092 info->control.hw_key = lsta->kc; 3093 #endif 3094 } else { 3095 sta = NULL; 3096 } 3097 3098 IMPROVE(); 3099 3100 if (sta != NULL) { 3101 struct lkpi_txq *ltxq; 3102 3103 ltxq = NULL; 3104 if (!ieee80211_is_data_present(hdr->frame_control)) { 3105 if (vif->type == NL80211_IFTYPE_STATION && 3106 lsta->added_to_drv && 3107 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3108 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3109 } else if (lsta->added_to_drv && 3110 sta->txq[skb->priority] != NULL) { 3111 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3112 } 3113 if (ltxq == NULL) 3114 goto ops_tx; 3115 3116 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3117 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3118 3119 skb_queue_tail(<xq->skbq, skb); 3120 #ifdef LINUXKPI_DEBUG_80211 3121 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3122 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3123 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3124 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3125 __func__, __LINE__, 3126 curthread->td_tid, (unsigned int)ticks, 3127 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3128 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3129 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3130 #endif 3131 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3132 return; 3133 } 3134 3135 ops_tx: 3136 #ifdef LINUXKPI_DEBUG_80211 3137 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3138 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3139 "TX ac %d prio %u qmap %u\n", 3140 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3141 skb, ac, skb->priority, skb->qmap); 3142 #endif 3143 memset(&control, 0, sizeof(control)); 3144 control.sta = sta; 3145 3146 lkpi_80211_mo_tx(hw, &control, skb); 3147 return; 3148 } 3149 3150 static void 3151 lkpi_80211_txq_task(void *ctx, int pending) 3152 { 3153 struct lkpi_sta *lsta; 3154 struct mbufq mq; 3155 struct mbuf *m; 3156 3157 lsta = ctx; 3158 3159 #ifdef LINUXKPI_DEBUG_80211 3160 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3161 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3162 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3163 pending, mbufq_len(&lsta->txq)); 3164 #endif 3165 3166 mbufq_init(&mq, IFQ_MAXLEN); 3167 3168 LKPI_80211_LSTA_LOCK(lsta); 3169 mbufq_concat(&mq, &lsta->txq); 3170 LKPI_80211_LSTA_UNLOCK(lsta); 3171 3172 m = mbufq_dequeue(&mq); 3173 while (m != NULL) { 3174 lkpi_80211_txq_tx_one(lsta, m); 3175 m = mbufq_dequeue(&mq); 3176 } 3177 } 3178 3179 static int 3180 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3181 { 3182 3183 /* XXX TODO */ 3184 IMPROVE(); 3185 3186 /* Quick and dirty cheating hack. */ 3187 struct ieee80211_node *ni; 3188 3189 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3190 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3191 } 3192 3193 static void 3194 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3195 int *n, struct ieee80211_channel *c) 3196 { 3197 struct lkpi_hw *lhw; 3198 struct ieee80211_hw *hw; 3199 struct linuxkpi_ieee80211_channel *channels; 3200 uint8_t bands[IEEE80211_MODE_BYTES]; 3201 int chan_flags, error, i, nchans; 3202 3203 /* Channels */ 3204 lhw = ic->ic_softc; 3205 hw = LHW_TO_HW(lhw); 3206 3207 /* NL80211_BAND_2GHZ */ 3208 nchans = 0; 3209 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3210 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3211 if (nchans > 0) { 3212 memset(bands, 0, sizeof(bands)); 3213 chan_flags = 0; 3214 setbit(bands, IEEE80211_MODE_11B); 3215 /* XXX-BZ unclear how to check for 11g. */ 3216 setbit(bands, IEEE80211_MODE_11G); 3217 #ifdef __notyet__ 3218 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3219 setbit(bands, IEEE80211_MODE_11NG); 3220 chan_flags |= NET80211_CBW_FLAG_HT40; 3221 } 3222 #endif 3223 3224 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3225 for (i = 0; i < nchans && *n < maxchan; i++) { 3226 uint32_t nflags = 0; 3227 int cflags = chan_flags; 3228 3229 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3230 printf("%s: %s: Skipping disabled chan " 3231 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3232 channels[i].hw_value, 3233 channels[i].center_freq, channels[i].flags); 3234 continue; 3235 } 3236 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3237 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3238 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3239 nflags |= IEEE80211_CHAN_DFS; 3240 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3241 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3242 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3243 cflags &= ~NET80211_CBW_FLAG_VHT80; 3244 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3245 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3246 cflags &= ~NET80211_CBW_FLAG_HT40; 3247 3248 error = ieee80211_add_channel_cbw(c, maxchan, n, 3249 channels[i].hw_value, channels[i].center_freq, 3250 channels[i].max_power, 3251 nflags, bands, chan_flags); 3252 /* net80211::ENOBUFS: *n >= maxchans */ 3253 if (error != 0 && error != ENOBUFS) 3254 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3255 "returned error %d\n", ic->ic_name, 3256 __func__, channels[i].hw_value, 3257 channels[i].center_freq, channels[i].flags, 3258 nflags, chan_flags, cflags, error); 3259 if (error != 0) 3260 break; 3261 } 3262 } 3263 3264 /* NL80211_BAND_5GHZ */ 3265 nchans = 0; 3266 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3267 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3268 if (nchans > 0) { 3269 memset(bands, 0, sizeof(bands)); 3270 chan_flags = 0; 3271 setbit(bands, IEEE80211_MODE_11A); 3272 #ifdef __not_yet__ 3273 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3274 setbit(bands, IEEE80211_MODE_11NA); 3275 chan_flags |= NET80211_CBW_FLAG_HT40; 3276 } 3277 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3278 3279 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3280 ic->ic_vhtcaps = 3281 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3282 3283 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3284 chan_flags |= NET80211_CBW_FLAG_VHT80; 3285 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3286 ic->ic_vhtcaps)) 3287 chan_flags |= NET80211_CBW_FLAG_VHT160; 3288 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3289 ic->ic_vhtcaps)) 3290 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3291 } 3292 #endif 3293 3294 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3295 for (i = 0; i < nchans && *n < maxchan; i++) { 3296 uint32_t nflags = 0; 3297 int cflags = chan_flags; 3298 3299 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3300 printf("%s: %s: Skipping disabled chan " 3301 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3302 channels[i].hw_value, 3303 channels[i].center_freq, channels[i].flags); 3304 continue; 3305 } 3306 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3307 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3308 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3309 nflags |= IEEE80211_CHAN_DFS; 3310 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3311 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3312 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3313 cflags &= ~NET80211_CBW_FLAG_VHT80; 3314 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3315 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3316 cflags &= ~NET80211_CBW_FLAG_HT40; 3317 3318 error = ieee80211_add_channel_cbw(c, maxchan, n, 3319 channels[i].hw_value, channels[i].center_freq, 3320 channels[i].max_power, 3321 nflags, bands, chan_flags); 3322 /* net80211::ENOBUFS: *n >= maxchans */ 3323 if (error != 0 && error != ENOBUFS) 3324 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3325 "returned error %d\n", ic->ic_name, 3326 __func__, channels[i].hw_value, 3327 channels[i].center_freq, channels[i].flags, 3328 nflags, chan_flags, cflags, error); 3329 if (error != 0) 3330 break; 3331 } 3332 } 3333 } 3334 3335 static void * 3336 lkpi_ieee80211_ifalloc(void) 3337 { 3338 struct ieee80211com *ic; 3339 3340 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3341 if (ic == NULL) 3342 return (NULL); 3343 3344 /* Setting these happens later when we have device information. */ 3345 ic->ic_softc = NULL; 3346 ic->ic_name = "linuxkpi"; 3347 3348 return (ic); 3349 } 3350 3351 struct ieee80211_hw * 3352 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3353 { 3354 struct ieee80211_hw *hw; 3355 struct lkpi_hw *lhw; 3356 struct wiphy *wiphy; 3357 3358 /* Get us and the driver data also allocated. */ 3359 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3360 if (wiphy == NULL) 3361 return (NULL); 3362 3363 lhw = wiphy_priv(wiphy); 3364 lhw->ops = ops; 3365 3366 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3367 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3368 TAILQ_INIT(&lhw->lvif_head); 3369 3370 /* 3371 * XXX-BZ TODO make sure there is a "_null" function to all ops 3372 * not initialized. 3373 */ 3374 hw = LHW_TO_HW(lhw); 3375 hw->wiphy = wiphy; 3376 hw->conf.flags |= IEEE80211_CONF_IDLE; 3377 hw->priv = (void *)(lhw + 1); 3378 3379 /* BSD Specific. */ 3380 lhw->ic = lkpi_ieee80211_ifalloc(); 3381 if (lhw->ic == NULL) { 3382 ieee80211_free_hw(hw); 3383 return (NULL); 3384 } 3385 3386 IMPROVE(); 3387 3388 return (hw); 3389 } 3390 3391 void 3392 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3393 { 3394 struct lkpi_hw *lhw; 3395 3396 lhw = HW_TO_LHW(hw); 3397 free(lhw->ic, M_LKPI80211); 3398 lhw->ic = NULL; 3399 3400 /* Cleanup more of lhw here or in wiphy_free()? */ 3401 sx_destroy(&lhw->lvif_sx); 3402 mtx_destroy(&lhw->mtx); 3403 IMPROVE(); 3404 } 3405 3406 void 3407 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3408 { 3409 struct lkpi_hw *lhw; 3410 struct ieee80211com *ic; 3411 3412 lhw = HW_TO_LHW(hw); 3413 ic = lhw->ic; 3414 3415 /* Now set a proper name before ieee80211_ifattach(). */ 3416 ic->ic_softc = lhw; 3417 ic->ic_name = name; 3418 3419 /* XXX-BZ do we also need to set wiphy name? */ 3420 } 3421 3422 struct ieee80211_hw * 3423 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3424 { 3425 struct lkpi_hw *lhw; 3426 3427 lhw = wiphy_priv(wiphy); 3428 return (LHW_TO_HW(lhw)); 3429 } 3430 3431 static void 3432 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3433 { 3434 struct ieee80211com *ic; 3435 3436 ic = lhw->ic; 3437 ieee80211_radiotap_attach(ic, 3438 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3439 LKPI_RTAP_TX_FLAGS_PRESENT, 3440 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3441 LKPI_RTAP_RX_FLAGS_PRESENT); 3442 } 3443 3444 int 3445 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3446 { 3447 struct ieee80211com *ic; 3448 struct lkpi_hw *lhw; 3449 int band, i; 3450 3451 lhw = HW_TO_LHW(hw); 3452 ic = lhw->ic; 3453 3454 /* We do it this late as wiphy->dev should be set for the name. */ 3455 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3456 if (lhw->workq == NULL) 3457 return (-EAGAIN); 3458 3459 /* XXX-BZ figure this out how they count his... */ 3460 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3461 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3462 hw->wiphy->perm_addr); 3463 } else if (hw->wiphy->n_addresses > 0) { 3464 /* We take the first one. */ 3465 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3466 hw->wiphy->addresses[0].addr); 3467 } else { 3468 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3469 } 3470 3471 #ifdef __not_yet__ 3472 /* See comment in lkpi_80211_txq_tx_one(). */ 3473 ic->ic_headroom = hw->extra_tx_headroom; 3474 #endif 3475 3476 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3477 ic->ic_opmode = IEEE80211_M_STA; 3478 3479 /* Set device capabilities. */ 3480 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3481 ic->ic_caps = 3482 IEEE80211_C_STA | 3483 IEEE80211_C_MONITOR | 3484 IEEE80211_C_WPA | /* WPA/RSN */ 3485 IEEE80211_C_WME | 3486 #if 0 3487 IEEE80211_C_PMGT | 3488 #endif 3489 IEEE80211_C_SHSLOT | /* short slot time supported */ 3490 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3491 ; 3492 #if 0 3493 /* Scanning is a different kind of beast to re-work. */ 3494 ic->ic_caps |= IEEE80211_C_BGSCAN; 3495 #endif 3496 if (lhw->ops->hw_scan) { 3497 /* 3498 * Advertise full-offload scanning. 3499 * 3500 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3501 * we essentially disable hw_scan for all drivers not setting 3502 * the flag. 3503 */ 3504 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3505 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3506 } 3507 3508 #ifdef __notyet__ 3509 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3510 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3511 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3512 | IEEE80211_HTCAP_MAXAMSDU_3839 3513 /* max A-MSDU length */ 3514 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3515 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3516 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3517 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3518 #endif 3519 3520 /* 3521 * The wiphy variables report bitmasks of avail antennas. 3522 * (*get_antenna) get the current bitmask sets which can be 3523 * altered by (*set_antenna) for some drivers. 3524 * XXX-BZ will the count alone do us much good long-term in net80211? 3525 */ 3526 if (hw->wiphy->available_antennas_rx || 3527 hw->wiphy->available_antennas_tx) { 3528 uint32_t rxs, txs; 3529 3530 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3531 ic->ic_rxstream = bitcount32(rxs); 3532 ic->ic_txstream = bitcount32(txs); 3533 } 3534 } 3535 3536 ic->ic_cryptocaps = 0; 3537 #ifdef LKPI_80211_HW_CRYPTO 3538 if (hw->wiphy->n_cipher_suites > 0) { 3539 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3540 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3541 hw->wiphy->cipher_suites[i]); 3542 } 3543 #endif 3544 3545 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3546 ic->ic_channels); 3547 3548 ieee80211_ifattach(ic); 3549 3550 ic->ic_update_mcast = lkpi_ic_update_mcast; 3551 ic->ic_update_promisc = lkpi_ic_update_promisc; 3552 ic->ic_update_chw = lkpi_ic_update_chw; 3553 ic->ic_parent = lkpi_ic_parent; 3554 ic->ic_scan_start = lkpi_ic_scan_start; 3555 ic->ic_scan_end = lkpi_ic_scan_end; 3556 ic->ic_set_channel = lkpi_ic_set_channel; 3557 ic->ic_transmit = lkpi_ic_transmit; 3558 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3559 ic->ic_vap_create = lkpi_ic_vap_create; 3560 ic->ic_vap_delete = lkpi_ic_vap_delete; 3561 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3562 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3563 3564 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3565 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3566 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3567 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3568 3569 lhw->ic_node_alloc = ic->ic_node_alloc; 3570 ic->ic_node_alloc = lkpi_ic_node_alloc; 3571 lhw->ic_node_init = ic->ic_node_init; 3572 ic->ic_node_init = lkpi_ic_node_init; 3573 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3574 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3575 lhw->ic_node_free = ic->ic_node_free; 3576 ic->ic_node_free = lkpi_ic_node_free; 3577 3578 lkpi_radiotap_attach(lhw); 3579 3580 /* 3581 * Assign the first possible channel for now; seems Realtek drivers 3582 * expect one. 3583 * Also remember the amount of bands we support and the most rates 3584 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3585 */ 3586 lhw->supbands = lhw->max_rates = 0; 3587 for (band = 0; band < NUM_NL80211_BANDS && 3588 hw->conf.chandef.chan == NULL; band++) { 3589 struct ieee80211_supported_band *supband; 3590 struct linuxkpi_ieee80211_channel *channels; 3591 3592 supband = hw->wiphy->bands[band]; 3593 if (supband == NULL || supband->n_channels == 0) 3594 continue; 3595 3596 lhw->supbands++; 3597 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3598 3599 channels = supband->channels; 3600 for (i = 0; i < supband->n_channels; i++) { 3601 3602 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3603 continue; 3604 3605 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3606 NL80211_CHAN_NO_HT); 3607 break; 3608 } 3609 } 3610 3611 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3612 3613 /* Make sure we do not support more than net80211 is willing to take. */ 3614 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3615 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3616 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3617 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3618 } 3619 3620 /* 3621 * The maximum supported bitrates on any band + size for 3622 * DSSS Parameter Set give our per-band IE size. 3623 * XXX-BZ FIXME add HT VHT ... later 3624 * SSID is the responsibility of the driver and goes on the side. 3625 * The user specified bits coming from the vap go into the 3626 * "common ies" fields. 3627 */ 3628 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3629 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3630 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3631 /* 3632 * net80211 does not seem to support the DSSS Parameter Set but some of 3633 * the drivers insert it so calculate the extra fixed space in. 3634 */ 3635 lhw->scan_ie_len += 2 + 1; 3636 3637 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3638 if (hw->wiphy->max_scan_ie_len > 0) 3639 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3640 3641 if (bootverbose) 3642 ieee80211_announce(ic); 3643 3644 return (0); 3645 } 3646 3647 void 3648 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3649 { 3650 struct lkpi_hw *lhw; 3651 struct ieee80211com *ic; 3652 3653 lhw = HW_TO_LHW(hw); 3654 ic = lhw->ic; 3655 ieee80211_ifdetach(ic); 3656 } 3657 3658 void 3659 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3660 enum ieee80211_iface_iter flags, 3661 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3662 void *arg) 3663 { 3664 struct lkpi_hw *lhw; 3665 struct lkpi_vif *lvif; 3666 struct ieee80211_vif *vif; 3667 bool active, atomic, nin_drv; 3668 3669 lhw = HW_TO_LHW(hw); 3670 3671 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3672 IEEE80211_IFACE_ITER_RESUME_ALL| 3673 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3674 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3675 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3676 __func__, flags); 3677 } 3678 3679 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3680 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3681 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3682 3683 if (atomic) 3684 LKPI_80211_LHW_LVIF_LOCK(lhw); 3685 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3686 struct ieee80211vap *vap; 3687 3688 vif = LVIF_TO_VIF(lvif); 3689 3690 /* 3691 * If we want "active" interfaces, we need to distinguish on 3692 * whether the driver knows about them or not to be able to 3693 * handle the "resume" case correctly. Skip the ones the 3694 * driver does not know about. 3695 */ 3696 if (active && !lvif->added_to_drv && 3697 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3698 continue; 3699 3700 /* 3701 * If we shall skip interfaces not added to the driver do so 3702 * if we haven't yet. 3703 */ 3704 if (nin_drv && !lvif->added_to_drv) 3705 continue; 3706 3707 /* 3708 * Run the iterator function if we are either not asking 3709 * asking for active only or if the VAP is "running". 3710 */ 3711 /* XXX-BZ probably should have state in the lvif as well. */ 3712 vap = LVIF_TO_VAP(lvif); 3713 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3714 iterfunc(arg, vif->addr, vif); 3715 } 3716 if (atomic) 3717 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3718 } 3719 3720 void 3721 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3722 struct ieee80211_vif *vif, 3723 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3724 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3725 void *arg) 3726 { 3727 3728 UNIMPLEMENTED; 3729 } 3730 3731 void 3732 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3733 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3734 void *), 3735 void *arg) 3736 { 3737 3738 UNIMPLEMENTED; 3739 } 3740 3741 void 3742 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3743 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3744 { 3745 struct lkpi_hw *lhw; 3746 struct lkpi_vif *lvif; 3747 struct lkpi_sta *lsta; 3748 struct ieee80211_sta *sta; 3749 3750 KASSERT(hw != NULL && iterfunc != NULL, 3751 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3752 3753 lhw = HW_TO_LHW(hw); 3754 3755 LKPI_80211_LHW_LVIF_LOCK(lhw); 3756 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3757 3758 LKPI_80211_LVIF_LOCK(lvif); 3759 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3760 if (!lsta->added_to_drv) 3761 continue; 3762 sta = LSTA_TO_STA(lsta); 3763 iterfunc(arg, sta); 3764 } 3765 LKPI_80211_LVIF_UNLOCK(lvif); 3766 } 3767 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3768 } 3769 3770 int 3771 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3772 struct linuxkpi_ieee80211_regdomain *regd) 3773 { 3774 struct lkpi_hw *lhw; 3775 struct ieee80211com *ic; 3776 struct ieee80211_regdomain *rd; 3777 3778 lhw = wiphy_priv(wiphy); 3779 ic = lhw->ic; 3780 3781 rd = &ic->ic_regdomain; 3782 if (rd->isocc[0] == '\0') { 3783 rd->isocc[0] = regd->alpha2[0]; 3784 rd->isocc[1] = regd->alpha2[1]; 3785 } 3786 3787 TODO(); 3788 /* XXX-BZ finish the rest. */ 3789 3790 return (0); 3791 } 3792 3793 void 3794 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3795 struct cfg80211_scan_info *info) 3796 { 3797 struct lkpi_hw *lhw; 3798 struct ieee80211com *ic; 3799 struct ieee80211_scan_state *ss; 3800 3801 lhw = wiphy_priv(hw->wiphy); 3802 ic = lhw->ic; 3803 ss = ic->ic_scan; 3804 3805 ieee80211_scan_done(ss->ss_vap); 3806 3807 LKPI_80211_LHW_LOCK(lhw); 3808 free(lhw->hw_req, M_LKPI80211); 3809 lhw->hw_req = NULL; 3810 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3811 wakeup(lhw); 3812 LKPI_80211_LHW_UNLOCK(lhw); 3813 3814 return; 3815 } 3816 3817 void 3818 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3819 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3820 { 3821 struct epoch_tracker et; 3822 struct lkpi_hw *lhw; 3823 struct ieee80211com *ic; 3824 struct mbuf *m; 3825 struct skb_shared_info *shinfo; 3826 struct ieee80211_rx_status *rx_status; 3827 struct ieee80211_rx_stats rx_stats; 3828 struct ieee80211_node *ni; 3829 struct ieee80211vap *vap; 3830 struct ieee80211_hdr *hdr; 3831 struct lkpi_sta *lsta; 3832 int i, offset, ok; 3833 int8_t rssi; 3834 bool is_beacon; 3835 3836 if (skb->len < 2) { 3837 /* Need 80211 stats here. */ 3838 IMPROVE(); 3839 goto err; 3840 } 3841 3842 /* 3843 * For now do the data copy; we can later improve things. Might even 3844 * have an mbuf backing the skb data then? 3845 */ 3846 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3847 if (m == NULL) 3848 goto err; 3849 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3850 3851 shinfo = skb_shinfo(skb); 3852 offset = m->m_len; 3853 for (i = 0; i < shinfo->nr_frags; i++) { 3854 m_copyback(m, offset, shinfo->frags[i].size, 3855 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3856 shinfo->frags[i].offset); 3857 offset += shinfo->frags[i].size; 3858 } 3859 3860 rx_status = IEEE80211_SKB_RXCB(skb); 3861 3862 hdr = (void *)skb->data; 3863 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3864 3865 #ifdef LINUXKPI_DEBUG_80211 3866 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3867 goto no_trace_beacons; 3868 3869 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3870 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3871 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3872 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3873 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3874 shinfo, shinfo->nr_frags, 3875 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3876 3877 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3878 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3879 3880 /* Implement a dump_rxcb() !!! */ 3881 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3882 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3883 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3884 __func__, 3885 (uintmax_t)rx_status->boottime_ns, 3886 (uintmax_t)rx_status->mactime, 3887 rx_status->device_timestamp, 3888 rx_status->flag, 3889 rx_status->freq, 3890 rx_status->bw, 3891 rx_status->encoding, 3892 rx_status->ampdu_reference, 3893 rx_status->band, 3894 rx_status->chains, 3895 rx_status->chain_signal[0], 3896 rx_status->chain_signal[1], 3897 rx_status->chain_signal[2], 3898 rx_status->chain_signal[3], 3899 rx_status->signal, 3900 rx_status->enc_flags, 3901 rx_status->he_dcm, 3902 rx_status->he_gi, 3903 rx_status->he_ru, 3904 rx_status->zero_length_psdu_type, 3905 rx_status->nss, 3906 rx_status->rate_idx); 3907 no_trace_beacons: 3908 #endif 3909 3910 memset(&rx_stats, 0, sizeof(rx_stats)); 3911 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3912 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3913 rx_stats.c_nf = -96; 3914 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3915 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3916 rssi = rx_status->signal; 3917 else 3918 rssi = rx_stats.c_nf; 3919 /* 3920 * net80211 signal strength data are in .5 dBm units relative to 3921 * the current noise floor (see comment in ieee80211_node.h). 3922 */ 3923 rssi -= rx_stats.c_nf; 3924 rx_stats.c_rssi = rssi * 2; 3925 rx_stats.r_flags |= IEEE80211_R_BAND; 3926 rx_stats.c_band = 3927 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3928 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3929 rx_stats.c_freq = rx_status->freq; 3930 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3931 3932 /* XXX (*sta_statistics)() to get to some of that? */ 3933 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3934 3935 lhw = HW_TO_LHW(hw); 3936 ic = lhw->ic; 3937 3938 ok = ieee80211_add_rx_params(m, &rx_stats); 3939 if (ok == 0) { 3940 m_freem(m); 3941 counter_u64_add(ic->ic_ierrors, 1); 3942 goto err; 3943 } 3944 3945 if (sta != NULL) { 3946 lsta = STA_TO_LSTA(sta); 3947 ni = ieee80211_ref_node(lsta->ni); 3948 } else { 3949 struct ieee80211_frame_min *wh; 3950 3951 wh = mtod(m, struct ieee80211_frame_min *); 3952 ni = ieee80211_find_rxnode(ic, wh); 3953 if (ni != NULL) 3954 lsta = ni->ni_drv_data; 3955 } 3956 3957 if (ni != NULL) 3958 vap = ni->ni_vap; 3959 else 3960 /* 3961 * XXX-BZ can we improve this by looking at the frame hdr 3962 * or other meta-data passed up? 3963 */ 3964 vap = TAILQ_FIRST(&ic->ic_vaps); 3965 3966 #ifdef LINUXKPI_DEBUG_80211 3967 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3968 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3969 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3970 ni, vap, is_beacon ? " beacon" : ""); 3971 #endif 3972 3973 if (ni != NULL && vap != NULL && is_beacon && 3974 rx_status->device_timestamp > 0 && 3975 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3976 struct lkpi_vif *lvif; 3977 struct ieee80211_vif *vif; 3978 struct ieee80211_frame *wh; 3979 3980 wh = mtod(m, struct ieee80211_frame *); 3981 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3982 goto skip_device_ts; 3983 3984 lvif = VAP_TO_LVIF(vap); 3985 vif = LVIF_TO_VIF(lvif); 3986 3987 IMPROVE("TIMING_BEACON_ONLY?"); 3988 /* mac80211 specific (not net80211) so keep it here. */ 3989 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3990 /* 3991 * net80211 should take care of the other information (sync_tsf, 3992 * sync_dtim_count) as otherwise we need to parse the beacon. 3993 */ 3994 } 3995 skip_device_ts: 3996 3997 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3998 ieee80211_radiotap_active_vap(vap)) { 3999 struct lkpi_radiotap_rx_hdr *rtap; 4000 4001 rtap = &lhw->rtap_rx; 4002 rtap->wr_tsft = rx_status->device_timestamp; 4003 rtap->wr_flags = 0; 4004 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4005 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4006 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4007 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4008 #if 0 /* .. or it does not given we strip it below. */ 4009 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4010 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4011 #endif 4012 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4013 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4014 rtap->wr_rate = 0; 4015 IMPROVE(); 4016 /* XXX TODO status->encoding / rate_index / bw */ 4017 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4018 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4019 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4020 rtap->wr_dbm_antsignal = rssi; 4021 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4022 } 4023 4024 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4025 m_adj(m, -IEEE80211_CRC_LEN); 4026 4027 NET_EPOCH_ENTER(et); 4028 if (ni != NULL) { 4029 ok = ieee80211_input_mimo(ni, m); 4030 ieee80211_free_node(ni); 4031 if (ok < 0) 4032 m_freem(m); 4033 } else { 4034 ok = ieee80211_input_mimo_all(ic, m); 4035 /* mbuf got consumed. */ 4036 } 4037 NET_EPOCH_EXIT(et); 4038 4039 #ifdef LINUXKPI_DEBUG_80211 4040 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4041 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4042 #endif 4043 4044 IMPROVE(); 4045 4046 err: 4047 /* The skb is ours so we can free it :-) */ 4048 kfree_skb(skb); 4049 } 4050 4051 uint8_t 4052 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4053 { 4054 const struct ieee80211_frame *wh; 4055 uint8_t tid; 4056 4057 /* Linux seems to assume this is a QOS-Data-Frame */ 4058 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4059 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4060 hdr->frame_control)); 4061 4062 wh = (const struct ieee80211_frame *)hdr; 4063 tid = ieee80211_gettid(wh); 4064 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4065 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4066 4067 return (tid); 4068 } 4069 4070 struct wiphy * 4071 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4072 { 4073 struct lkpi_wiphy *lwiphy; 4074 4075 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4076 if (lwiphy == NULL) 4077 return (NULL); 4078 lwiphy->ops = ops; 4079 4080 /* XXX TODO */ 4081 return (LWIPHY_TO_WIPHY(lwiphy)); 4082 } 4083 4084 void 4085 linuxkpi_wiphy_free(struct wiphy *wiphy) 4086 { 4087 struct lkpi_wiphy *lwiphy; 4088 4089 if (wiphy == NULL) 4090 return; 4091 4092 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4093 kfree(lwiphy); 4094 } 4095 4096 uint32_t 4097 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4098 enum nl80211_band band) 4099 { 4100 4101 switch (band) { 4102 case NL80211_BAND_2GHZ: 4103 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4104 break; 4105 case NL80211_BAND_5GHZ: 4106 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4107 break; 4108 default: 4109 /* XXX abort, retry, error, panic? */ 4110 break; 4111 } 4112 4113 return (0); 4114 } 4115 4116 uint32_t 4117 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4118 { 4119 4120 return (ieee80211_mhz2ieee(freq, 0)); 4121 } 4122 4123 static struct lkpi_sta * 4124 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4125 { 4126 struct lkpi_sta *lsta, *temp; 4127 4128 LKPI_80211_LVIF_LOCK(lvif); 4129 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4130 if (lsta->ni == ni) { 4131 LKPI_80211_LVIF_UNLOCK(lvif); 4132 return (lsta); 4133 } 4134 } 4135 LKPI_80211_LVIF_UNLOCK(lvif); 4136 4137 return (NULL); 4138 } 4139 4140 struct ieee80211_sta * 4141 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4142 { 4143 struct lkpi_vif *lvif; 4144 struct lkpi_sta *lsta, *temp; 4145 struct ieee80211_sta *sta; 4146 4147 lvif = VIF_TO_LVIF(vif); 4148 4149 LKPI_80211_LVIF_LOCK(lvif); 4150 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4151 sta = LSTA_TO_STA(lsta); 4152 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4153 LKPI_80211_LVIF_UNLOCK(lvif); 4154 return (sta); 4155 } 4156 } 4157 LKPI_80211_LVIF_UNLOCK(lvif); 4158 return (NULL); 4159 } 4160 4161 struct ieee80211_sta * 4162 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4163 const uint8_t *addr, const uint8_t *ourvifaddr) 4164 { 4165 struct lkpi_hw *lhw; 4166 struct lkpi_vif *lvif; 4167 struct lkpi_sta *lsta; 4168 struct ieee80211_vif *vif; 4169 struct ieee80211_sta *sta; 4170 4171 lhw = wiphy_priv(hw->wiphy); 4172 sta = NULL; 4173 4174 LKPI_80211_LHW_LVIF_LOCK(lhw); 4175 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4176 4177 /* XXX-BZ check our address from the vif. */ 4178 4179 vif = LVIF_TO_VIF(lvif); 4180 if (ourvifaddr != NULL && 4181 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4182 continue; 4183 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4184 if (sta != NULL) 4185 break; 4186 } 4187 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4188 4189 if (sta != NULL) { 4190 lsta = STA_TO_LSTA(sta); 4191 if (!lsta->added_to_drv) 4192 return (NULL); 4193 } 4194 4195 return (sta); 4196 } 4197 4198 struct sk_buff * 4199 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4200 struct ieee80211_txq *txq) 4201 { 4202 struct lkpi_txq *ltxq; 4203 struct sk_buff *skb; 4204 4205 ltxq = TXQ_TO_LTXQ(txq); 4206 ltxq->seen_dequeue = true; 4207 4208 skb = skb_dequeue(<xq->skbq); 4209 4210 return (skb); 4211 } 4212 4213 void 4214 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4215 unsigned long *frame_cnt, unsigned long *byte_cnt) 4216 { 4217 struct lkpi_txq *ltxq; 4218 struct sk_buff *skb; 4219 unsigned long fc, bc; 4220 4221 ltxq = TXQ_TO_LTXQ(txq); 4222 4223 fc = bc = 0; 4224 skb_queue_walk(<xq->skbq, skb) { 4225 fc++; 4226 bc += skb->len; 4227 } 4228 if (frame_cnt) 4229 *frame_cnt = fc; 4230 if (byte_cnt) 4231 *byte_cnt = bc; 4232 4233 /* Validate that this is doing the correct thing. */ 4234 /* Should we keep track on en/dequeue? */ 4235 IMPROVE(); 4236 } 4237 4238 /* 4239 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4240 * The latter tries to derive the success status from the info flags 4241 * passed back from the driver. rawx_mit() saves the ni on the m and the 4242 * m on the skb for us to be able to give feedback to net80211. 4243 */ 4244 void 4245 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4246 int status) 4247 { 4248 struct ieee80211_node *ni; 4249 struct mbuf *m; 4250 4251 m = skb->m; 4252 skb->m = NULL; 4253 4254 if (m != NULL) { 4255 ni = m->m_pkthdr.PH_loc.ptr; 4256 /* Status: 0 is ok, != 0 is error. */ 4257 ieee80211_tx_complete(ni, m, status); 4258 /* ni & mbuf were consumed. */ 4259 } 4260 4261 kfree_skb(skb); 4262 } 4263 4264 void 4265 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4266 { 4267 struct ieee80211_tx_info *info; 4268 struct ieee80211_ratectl_tx_status txs; 4269 struct ieee80211_node *ni; 4270 int status; 4271 4272 info = IEEE80211_SKB_CB(skb); 4273 4274 if (skb->m != NULL) { 4275 struct mbuf *m; 4276 4277 m = skb->m; 4278 ni = m->m_pkthdr.PH_loc.ptr; 4279 memset(&txs, 0, sizeof(txs)); 4280 } else { 4281 ni = NULL; 4282 } 4283 4284 if (info->flags & IEEE80211_TX_STAT_ACK) { 4285 status = 0; /* No error. */ 4286 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4287 } else { 4288 status = 1; 4289 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4290 } 4291 4292 if (ni != NULL) { 4293 int ridx __unused; 4294 #ifdef LINUXKPI_DEBUG_80211 4295 int old_rate; 4296 4297 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4298 #endif 4299 txs.pktlen = skb->len; 4300 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4301 if (info->status.rates[0].count > 1) { 4302 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4303 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4304 } 4305 #if 0 /* Unused in net80211 currently. */ 4306 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4307 txs.final_rate = info->status.rates[0].idx; 4308 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4309 #endif 4310 if (info->status.is_valid_ack_signal) { 4311 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4312 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4313 } 4314 4315 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4316 ieee80211_ratectl_tx_complete(ni, &txs); 4317 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4318 4319 #ifdef LINUXKPI_DEBUG_80211 4320 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4321 printf("TX-RATE: %s: old %d new %d ridx %d, " 4322 "long_retries %d\n", __func__, 4323 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4324 ridx, txs.long_retries); 4325 } 4326 #endif 4327 } 4328 4329 #ifdef LINUXKPI_DEBUG_80211 4330 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4331 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4332 "band %u hw_queue %u tx_time_est %d : " 4333 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4334 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4335 "tx_time %u is_valid_ack_signal %u " 4336 "status_driver_data [ %p %p ]\n", 4337 __func__, hw, skb, status, info->flags, 4338 info->band, info->hw_queue, info->tx_time_est, 4339 info->status.rates[0].idx, info->status.rates[0].count, 4340 info->status.rates[0].flags, 4341 info->status.rates[1].idx, info->status.rates[1].count, 4342 info->status.rates[1].flags, 4343 info->status.rates[2].idx, info->status.rates[2].count, 4344 info->status.rates[2].flags, 4345 info->status.rates[3].idx, info->status.rates[3].count, 4346 info->status.rates[3].flags, 4347 info->status.ack_signal, info->status.ampdu_ack_len, 4348 info->status.ampdu_len, info->status.antenna, 4349 info->status.tx_time, info->status.is_valid_ack_signal, 4350 info->status.status_driver_data[0], 4351 info->status.status_driver_data[1]); 4352 #endif 4353 4354 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4355 } 4356 4357 /* 4358 * This is an internal bandaid for the moment for the way we glue 4359 * skbs and mbufs together for TX. Once we have skbs backed by 4360 * mbufs this should go away. 4361 * This is a public function but kept on the private KPI (lkpi_) 4362 * and is not exposed by a header file. 4363 */ 4364 static void 4365 lkpi_ieee80211_free_skb_mbuf(void *p) 4366 { 4367 struct ieee80211_node *ni; 4368 struct mbuf *m; 4369 4370 if (p == NULL) 4371 return; 4372 4373 m = (struct mbuf *)p; 4374 M_ASSERTPKTHDR(m); 4375 4376 ni = m->m_pkthdr.PH_loc.ptr; 4377 m->m_pkthdr.PH_loc.ptr = NULL; 4378 if (ni != NULL) 4379 ieee80211_free_node(ni); 4380 m_freem(m); 4381 } 4382 4383 void 4384 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4385 struct delayed_work *w, int delay) 4386 { 4387 struct lkpi_hw *lhw; 4388 4389 /* Need to make sure hw is in a stable (non-suspended) state. */ 4390 IMPROVE(); 4391 4392 lhw = HW_TO_LHW(hw); 4393 queue_delayed_work(lhw->workq, w, delay); 4394 } 4395 4396 void 4397 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4398 struct work_struct *w) 4399 { 4400 struct lkpi_hw *lhw; 4401 4402 /* Need to make sure hw is in a stable (non-suspended) state. */ 4403 IMPROVE(); 4404 4405 lhw = HW_TO_LHW(hw); 4406 queue_work(lhw->workq, w); 4407 } 4408 4409 struct sk_buff * 4410 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4411 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4412 { 4413 struct sk_buff *skb; 4414 struct ieee80211_frame *wh; 4415 uint8_t *p; 4416 size_t len; 4417 4418 len = sizeof(*wh); 4419 len += 2 + ssid_len; 4420 4421 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4422 if (skb == NULL) 4423 return (NULL); 4424 4425 skb_reserve(skb, hw->extra_tx_headroom); 4426 4427 wh = skb_put_zero(skb, sizeof(*wh)); 4428 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4429 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4430 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4431 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4432 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4433 4434 p = skb_put(skb, 2 + ssid_len); 4435 *p++ = IEEE80211_ELEMID_SSID; 4436 *p++ = ssid_len; 4437 if (ssid_len > 0) 4438 memcpy(p, ssid, ssid_len); 4439 4440 return (skb); 4441 } 4442 4443 struct sk_buff * 4444 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4445 struct ieee80211_vif *vif) 4446 { 4447 struct lkpi_vif *lvif; 4448 struct ieee80211vap *vap; 4449 struct sk_buff *skb; 4450 struct ieee80211_frame_pspoll *psp; 4451 uint16_t v; 4452 4453 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4454 if (skb == NULL) 4455 return (NULL); 4456 4457 skb_reserve(skb, hw->extra_tx_headroom); 4458 4459 lvif = VIF_TO_LVIF(vif); 4460 vap = LVIF_TO_VAP(lvif); 4461 4462 psp = skb_put_zero(skb, sizeof(*psp)); 4463 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4464 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4465 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4466 memcpy(&psp->i_aid, &v, sizeof(v)); 4467 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4468 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4469 4470 return (skb); 4471 } 4472 4473 struct sk_buff * 4474 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4475 struct ieee80211_vif *vif, bool qos) 4476 { 4477 struct lkpi_vif *lvif; 4478 struct ieee80211vap *vap; 4479 struct sk_buff *skb; 4480 struct ieee80211_frame *nullf; 4481 4482 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4483 if (skb == NULL) 4484 return (NULL); 4485 4486 skb_reserve(skb, hw->extra_tx_headroom); 4487 4488 lvif = VIF_TO_LVIF(vif); 4489 vap = LVIF_TO_VAP(lvif); 4490 4491 nullf = skb_put_zero(skb, sizeof(*nullf)); 4492 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4493 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4494 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4495 4496 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4497 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4498 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4499 4500 return (skb); 4501 } 4502 4503 struct wireless_dev * 4504 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4505 { 4506 struct lkpi_vif *lvif; 4507 4508 lvif = VIF_TO_LVIF(vif); 4509 return (&lvif->wdev); 4510 } 4511 4512 void 4513 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4514 { 4515 struct lkpi_vif *lvif; 4516 struct ieee80211vap *vap; 4517 enum ieee80211_state nstate; 4518 int arg; 4519 4520 lvif = VIF_TO_LVIF(vif); 4521 vap = LVIF_TO_VAP(lvif); 4522 4523 /* 4524 * Go to init; otherwise we need to elaborately check state and 4525 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4526 * Let the statemachine handle all neccessary changes. 4527 */ 4528 nstate = IEEE80211_S_INIT; 4529 arg = 0; /* Not a valid reason. */ 4530 4531 #ifdef LINUXKPI_DEBUG_80211 4532 if (linuxkpi_debug_80211 & D80211_TRACE) 4533 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4534 #endif 4535 ieee80211_new_state(vap, nstate, arg); 4536 } 4537 4538 void 4539 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4540 { 4541 struct lkpi_vif *lvif; 4542 struct ieee80211vap *vap; 4543 4544 lvif = VIF_TO_LVIF(vif); 4545 vap = LVIF_TO_VAP(lvif); 4546 4547 #ifdef LINUXKPI_DEBUG_80211 4548 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4549 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4550 vif, vap, ieee80211_state_name[vap->iv_state]); 4551 #endif 4552 ieee80211_beacon_miss(vap->iv_ic); 4553 } 4554 4555 MODULE_VERSION(linuxkpi_wlan, 1); 4556 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4557 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4558