1 /*- 2 * Copyright (c) 2020-2022 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 57 #include <net/if.h> 58 #include <net/if_var.h> 59 #include <net/if_media.h> 60 #include <net/ethernet.h> 61 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_proto.h> 64 #include <net80211/ieee80211_ratectl.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 74 75 /* -------------------------------------------------------------------------- */ 76 77 /* Keep public for as long as header files are using it too. */ 78 int linuxkpi_debug_80211; 79 80 #ifdef LINUXKPI_DEBUG_80211 81 SYSCTL_DECL(_compat_linuxkpi); 82 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 83 "LinuxKPI 802.11 compatibility layer"); 84 85 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 86 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 87 88 #ifndef D80211_TODO 89 #define D80211_TODO 0x1 90 #endif 91 #ifndef D80211_IMPROVE 92 #define D80211_IMPROVE 0x2 93 #endif 94 #define D80211_TRACE 0x10 95 #define D80211_TRACEOK 0x20 96 #define D80211_TRACE_TX 0x100 97 #define D80211_TRACE_TX_DUMP 0x200 98 #define D80211_TRACE_RX 0x1000 99 #define D80211_TRACE_RX_DUMP 0x2000 100 #define D80211_TRACE_RX_BEACONS 0x4000 101 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 102 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 103 #define D80211_TRACE_STA 0x10000 104 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 105 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 106 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 107 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 108 #else 109 #define UNIMPLEMENTED do { } while (0) 110 #define TRACEOK() do { } while (0) 111 #endif 112 113 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 114 #ifndef PREP_TX_INFO_DURATION 115 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 116 #endif 117 118 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 119 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 120 121 const uint8_t tid_to_mac80211_ac[] = { 122 IEEE80211_AC_BE, 123 IEEE80211_AC_BK, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BE, 126 IEEE80211_AC_VI, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VO, 129 IEEE80211_AC_VO, 130 #if 0 131 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 132 #endif 133 }; 134 135 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 136 /* 137 * XXX TODO need a "glue layer" to link cfg80211 ops to 138 * mac80211 and to the driver or net80211. 139 * Can we pass some on 1:1? Need to compare the (*f)(). 140 */ 141 }; 142 143 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 144 struct ieee80211_node *); 145 static void lkpi_80211_txq_task(void *, int); 146 static void lkpi_ieee80211_free_skb_mbuf(void *); 147 148 static void 149 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 150 const char *_f, int _l) 151 { 152 153 #ifdef LINUXKPI_DEBUG_80211 154 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 155 return; 156 if (lsta == NULL) 157 return; 158 159 printf("%s:%d lsta %p ni %p sta %p\n", 160 _f, _l, lsta, ni, &lsta->sta); 161 if (ni != NULL) 162 ieee80211_dump_node(NULL, ni); 163 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 164 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 165 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 166 #endif 167 } 168 169 static void 170 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 171 { 172 struct ieee80211_node *ni; 173 174 ni = lsta->ni; 175 176 LKPI_80211_LVIF_LOCK(lvif); 177 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 178 LKPI_80211_LVIF_UNLOCK(lvif); 179 180 lsta->ni = NULL; 181 ni->ni_drv_data = NULL; 182 ieee80211_free_node(ni); 183 184 IMPROVE("free lsta here? We won't have a pointer to it from the node anymore."); 185 } 186 187 static struct lkpi_sta * 188 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 189 struct ieee80211_hw *hw, struct ieee80211_node *ni) 190 { 191 struct lkpi_sta *lsta; 192 struct lkpi_vif *lvif; 193 struct ieee80211_vif *vif; 194 struct ieee80211_sta *sta; 195 int tid; 196 197 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 198 M_NOWAIT | M_ZERO); 199 if (lsta == NULL) 200 return (NULL); 201 202 lsta->added_to_drv = false; 203 lsta->state = IEEE80211_STA_NOTEXIST; 204 #if 0 205 /* 206 * This needs to be done in node_init() as ieee80211_alloc_node() 207 * will initialise the refcount after us. 208 */ 209 lsta->ni = ieee80211_ref_node(ni); 210 #endif 211 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 212 ni->ni_drv_data = lsta; 213 214 lvif = VAP_TO_LVIF(vap); 215 vif = LVIF_TO_VIF(lvif); 216 sta = LSTA_TO_STA(lsta); 217 218 IEEE80211_ADDR_COPY(sta->addr, mac); 219 for (tid = 0; tid < nitems(sta->txq); tid++) { 220 struct lkpi_txq *ltxq; 221 222 /* 223 * We are neither limiting ourselves to hw.queues here, 224 * nor do we check if driver wants IEEE80211_NUM_TIDS queue. 225 */ 226 227 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 228 M_LKPI80211, M_NOWAIT | M_ZERO); 229 if (ltxq == NULL) 230 goto cleanup; 231 ltxq->seen_dequeue = false; 232 skb_queue_head_init(<xq->skbq); 233 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 234 if (tid == IEEE80211_NUM_TIDS) { 235 IMPROVE(); 236 ltxq->txq.ac = IEEE80211_AC_VO; 237 } else { 238 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 239 } 240 ltxq->txq.tid = tid; 241 ltxq->txq.sta = sta; 242 ltxq->txq.vif = vif; 243 sta->txq[tid] = <xq->txq; 244 } 245 246 /* Deferred TX path. */ 247 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 248 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 249 mbufq_init(&lsta->txq, IFQ_MAXLEN); 250 251 return (lsta); 252 253 cleanup: 254 for (; tid >= 0; tid--) 255 free(sta->txq[tid], M_LKPI80211); 256 free(lsta, M_LKPI80211); 257 return (NULL); 258 } 259 260 static enum nl80211_band 261 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 262 { 263 264 if (IEEE80211_IS_CHAN_2GHZ(c)) 265 return (NL80211_BAND_2GHZ); 266 else if (IEEE80211_IS_CHAN_5GHZ(c)) 267 return (NL80211_BAND_5GHZ); 268 #ifdef __notyet__ 269 else if () 270 return (NL80211_BAND_6GHZ); 271 else if () 272 return (NL80211_BAND_60GHZ); 273 else if (IEEE80211_IS_CHAN_GSM(c)) 274 return (NL80211_BAND_XXX); 275 #endif 276 else 277 panic("%s: unsupported band. c %p flags %#x\n", 278 __func__, c, c->ic_flags); 279 } 280 281 static uint32_t 282 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 283 { 284 285 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 286 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 287 switch (band) { 288 case NL80211_BAND_2GHZ: 289 return (IEEE80211_CHAN_2GHZ); 290 break; 291 case NL80211_BAND_5GHZ: 292 return (IEEE80211_CHAN_5GHZ); 293 break; 294 case NL80211_BAND_60GHZ: 295 break; 296 case NL80211_BAND_6GHZ: 297 break; 298 default: 299 panic("%s: unsupported band %u\n", __func__, band); 300 break; 301 } 302 303 IMPROVE(); 304 return (0x00); 305 } 306 307 static enum ieee80211_ac_numbers 308 lkpi_ac_net_to_l80211(int ac) 309 { 310 311 switch (ac) { 312 case WME_AC_VO: 313 return (IEEE80211_AC_VO); 314 case WME_AC_VI: 315 return (IEEE80211_AC_VI); 316 case WME_AC_BE: 317 return (IEEE80211_AC_BE); 318 case WME_AC_BK: 319 return (IEEE80211_AC_BK); 320 default: 321 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 322 return (IEEE80211_AC_BE); 323 } 324 } 325 326 static enum nl80211_iftype 327 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 328 { 329 330 switch (opmode) { 331 case IEEE80211_M_IBSS: 332 return (NL80211_IFTYPE_ADHOC); 333 break; 334 case IEEE80211_M_STA: 335 return (NL80211_IFTYPE_STATION); 336 break; 337 case IEEE80211_M_WDS: 338 return (NL80211_IFTYPE_WDS); 339 break; 340 case IEEE80211_M_HOSTAP: 341 return (NL80211_IFTYPE_AP); 342 break; 343 case IEEE80211_M_MONITOR: 344 return (NL80211_IFTYPE_MONITOR); 345 break; 346 case IEEE80211_M_MBSS: 347 return (NL80211_IFTYPE_MESH_POINT); 348 break; 349 case IEEE80211_M_AHDEMO: 350 /* FALLTHROUGH */ 351 default: 352 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 353 /* FALLTHROUGH */ 354 } 355 return (NL80211_IFTYPE_UNSPECIFIED); 356 } 357 358 #ifdef __notyet__ 359 static uint32_t 360 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 361 { 362 363 switch (wlan_cipher_suite) { 364 case WLAN_CIPHER_SUITE_WEP40: 365 return (IEEE80211_CRYPTO_WEP); 366 case WLAN_CIPHER_SUITE_TKIP: 367 return (IEEE80211_CRYPTO_TKIP); 368 case WLAN_CIPHER_SUITE_CCMP: 369 return (IEEE80211_CIPHER_AES_CCM); 370 case WLAN_CIPHER_SUITE_WEP104: 371 return (IEEE80211_CRYPTO_WEP); 372 case WLAN_CIPHER_SUITE_AES_CMAC: 373 case WLAN_CIPHER_SUITE_GCMP: 374 case WLAN_CIPHER_SUITE_GCMP_256: 375 case WLAN_CIPHER_SUITE_CCMP_256: 376 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 377 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 378 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 379 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 380 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 381 break; 382 default: 383 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 384 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 385 } 386 387 return (0); 388 } 389 #endif 390 391 #ifdef TRY_HW_CRYPTO 392 static uint32_t 393 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 394 { 395 396 switch (cipher) { 397 case IEEE80211_CIPHER_TKIP: 398 return (WLAN_CIPHER_SUITE_TKIP); 399 case IEEE80211_CIPHER_AES_CCM: 400 return (WLAN_CIPHER_SUITE_CCMP); 401 case IEEE80211_CIPHER_WEP: 402 if (keylen < 8) 403 return (WLAN_CIPHER_SUITE_WEP40); 404 else 405 return (WLAN_CIPHER_SUITE_WEP104); 406 break; 407 case IEEE80211_CIPHER_AES_OCB: 408 case IEEE80211_CIPHER_TKIPMIC: 409 case IEEE80211_CIPHER_CKIP: 410 case IEEE80211_CIPHER_NONE: 411 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 412 break; 413 default: 414 printf("%s: unknown cipher %#010x\n", __func__, cipher); 415 }; 416 return (0); 417 } 418 #endif 419 420 #ifdef __notyet__ 421 static enum ieee80211_sta_state 422 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 423 { 424 425 /* 426 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 427 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 428 */ 429 switch (state) { 430 case IEEE80211_S_INIT: 431 return (IEEE80211_STA_NOTEXIST); 432 case IEEE80211_S_SCAN: 433 return (IEEE80211_STA_NONE); 434 case IEEE80211_S_AUTH: 435 return (IEEE80211_STA_AUTH); 436 case IEEE80211_S_ASSOC: 437 return (IEEE80211_STA_ASSOC); 438 case IEEE80211_S_RUN: 439 return (IEEE80211_STA_AUTHORIZED); 440 case IEEE80211_S_CAC: 441 case IEEE80211_S_CSA: 442 case IEEE80211_S_SLEEP: 443 default: 444 UNIMPLEMENTED; 445 }; 446 447 return (IEEE80211_STA_NOTEXIST); 448 } 449 #endif 450 451 static struct linuxkpi_ieee80211_channel * 452 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 453 struct ieee80211_channel *c) 454 { 455 struct ieee80211_hw *hw; 456 struct linuxkpi_ieee80211_channel *channels; 457 enum nl80211_band band; 458 int i, nchans; 459 460 hw = LHW_TO_HW(lhw); 461 band = lkpi_net80211_chan_to_nl80211_band(c); 462 if (hw->wiphy->bands[band] == NULL) 463 return (NULL); 464 465 nchans = hw->wiphy->bands[band]->n_channels; 466 if (nchans <= 0) 467 return (NULL); 468 469 channels = hw->wiphy->bands[band]->channels; 470 for (i = 0; i < nchans; i++) { 471 if (channels[i].hw_value == c->ic_ieee) 472 return (&channels[i]); 473 } 474 475 return (NULL); 476 } 477 478 static struct linuxkpi_ieee80211_channel * 479 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 480 { 481 struct linuxkpi_ieee80211_channel *chan; 482 struct ieee80211_channel *c; 483 struct lkpi_hw *lhw; 484 485 chan = NULL; 486 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 487 c = ni->ni_chan; 488 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 489 c = ic->ic_bsschan; 490 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 491 c = ic->ic_curchan; 492 else 493 c = NULL; 494 495 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 496 lhw = ic->ic_softc; 497 chan = lkpi_find_lkpi80211_chan(lhw, c); 498 } 499 500 return (chan); 501 } 502 503 struct linuxkpi_ieee80211_channel * 504 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 505 { 506 enum nl80211_band band; 507 508 for (band = 0; band < NUM_NL80211_BANDS; band++) { 509 struct ieee80211_supported_band *supband; 510 struct linuxkpi_ieee80211_channel *channels; 511 int i; 512 513 supband = wiphy->bands[band]; 514 if (supband == NULL || supband->n_channels == 0) 515 continue; 516 517 channels = supband->channels; 518 for (i = 0; i < supband->n_channels; i++) { 519 if (channels[i].center_freq == freq) 520 return (&channels[i]); 521 } 522 } 523 524 return (NULL); 525 } 526 527 #ifdef TRY_HW_CRYPTO 528 static int 529 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 530 enum set_key_cmd cmd) 531 { 532 struct ieee80211com *ic; 533 struct lkpi_hw *lhw; 534 struct ieee80211_hw *hw; 535 struct lkpi_vif *lvif; 536 struct ieee80211_vif *vif; 537 struct ieee80211_sta *sta; 538 struct ieee80211_node *ni; 539 struct ieee80211_key_conf *kc; 540 int error; 541 542 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 543 544 ic = vap->iv_ic; 545 lhw = ic->ic_softc; 546 hw = LHW_TO_HW(lhw); 547 lvif = VAP_TO_LVIF(vap); 548 vif = LVIF_TO_VIF(lvif); 549 550 memset(&kc, 0, sizeof(kc)); 551 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 552 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 553 k->wk_cipher->ic_cipher, k->wk_keylen); 554 kc->keyidx = k->wk_keyix; 555 #if 0 556 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 557 #endif 558 atomic64_set(&kc->tx_pn, k->wk_keytsc); 559 kc->keylen = k->wk_keylen; 560 memcpy(kc->key, k->wk_key, k->wk_keylen); 561 562 switch (kc->cipher) { 563 case WLAN_CIPHER_SUITE_CCMP: 564 kc->iv_len = k->wk_cipher->ic_header; 565 kc->icv_len = k->wk_cipher->ic_trailer; 566 break; 567 case WLAN_CIPHER_SUITE_TKIP: 568 default: 569 IMPROVE(); 570 return (0); 571 }; 572 573 ni = vap->iv_bss; 574 sta = ieee80211_find_sta(vif, ni->ni_bssid); 575 if (sta != NULL) { 576 struct lkpi_sta *lsta; 577 578 lsta = STA_TO_LSTA(sta); 579 lsta->kc = kc; 580 } 581 582 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 583 if (error != 0) { 584 /* XXX-BZ leaking kc currently */ 585 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 586 return (0); 587 } else { 588 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 589 "flags %#10x\n", __func__, 590 kc->keyidx, kc->hw_key_idx, kc->flags); 591 return (1); 592 } 593 } 594 595 static int 596 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 597 { 598 599 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 600 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 601 } 602 static int 603 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 604 { 605 606 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 607 } 608 #endif 609 610 static u_int 611 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 612 { 613 struct netdev_hw_addr_list *mc_list; 614 struct netdev_hw_addr *addr; 615 616 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 617 __func__, arg, sdl, cnt)); 618 619 mc_list = arg; 620 /* If it is on the list already skip it. */ 621 netdev_hw_addr_list_for_each(addr, mc_list) { 622 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 623 return (0); 624 } 625 626 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 627 if (addr == NULL) 628 return (0); 629 630 INIT_LIST_HEAD(&addr->addr_list); 631 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 632 /* XXX this should be a netdev function? */ 633 list_add(&addr->addr_list, &mc_list->addr_list); 634 mc_list->count++; 635 636 #ifdef LINUXKPI_DEBUG_80211 637 if (linuxkpi_debug_80211 & D80211_TRACE) 638 printf("%s:%d: mc_list count %d: added %6D\n", 639 __func__, __LINE__, mc_list->count, addr->addr, ":"); 640 #endif 641 642 return (1); 643 } 644 645 static void 646 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 647 { 648 struct lkpi_hw *lhw; 649 struct ieee80211_hw *hw; 650 struct netdev_hw_addr_list mc_list; 651 struct list_head *le, *next; 652 struct netdev_hw_addr *addr; 653 struct ieee80211vap *vap; 654 u64 mc; 655 unsigned int changed_flags, total_flags; 656 657 lhw = ic->ic_softc; 658 659 if (lhw->ops->prepare_multicast == NULL || 660 lhw->ops->configure_filter == NULL) 661 return; 662 663 if (!lhw->update_mc && !force) 664 return; 665 666 changed_flags = total_flags = 0; 667 mc_list.count = 0; 668 INIT_LIST_HEAD(&mc_list.addr_list); 669 if (ic->ic_allmulti == 0) { 670 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 671 if_foreach_llmaddr(vap->iv_ifp, 672 lkpi_ic_update_mcast_copy, &mc_list); 673 } else { 674 changed_flags |= FIF_ALLMULTI; 675 } 676 677 hw = LHW_TO_HW(lhw); 678 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 679 /* 680 * XXX-BZ make sure to get this sorted what is a change, 681 * what gets all set; what was already set? 682 */ 683 total_flags = changed_flags; 684 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 685 686 #ifdef LINUXKPI_DEBUG_80211 687 if (linuxkpi_debug_80211 & D80211_TRACE) 688 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 689 __func__, changed_flags, mc_list.count, total_flags); 690 #endif 691 692 if (mc_list.count != 0) { 693 list_for_each_safe(le, next, &mc_list.addr_list) { 694 addr = list_entry(le, struct netdev_hw_addr, addr_list); 695 free(addr, M_LKPI80211); 696 mc_list.count--; 697 } 698 } 699 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 700 __func__, &mc_list, mc_list.count)); 701 } 702 703 static enum ieee80211_bss_changed 704 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 705 struct ieee80211vap *vap, const char *_f, int _l) 706 { 707 enum ieee80211_bss_changed bss_changed; 708 709 bss_changed = 0; 710 711 #ifdef LINUXKPI_DEBUG_80211 712 if (linuxkpi_debug_80211 & D80211_TRACE) 713 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 714 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 715 "sync_device_ts %u bss_changed %#08x\n", 716 __func__, __LINE__, _f, _l, 717 vif->bss_conf.assoc, vif->bss_conf.aid, 718 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 719 vif->bss_conf.sync_dtim_count, 720 (uintmax_t)vif->bss_conf.sync_tsf, 721 vif->bss_conf.sync_device_ts, 722 bss_changed); 723 #endif 724 725 if (vif->bss_conf.beacon_int != ni->ni_intval) { 726 vif->bss_conf.beacon_int = ni->ni_intval; 727 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 728 if (vif->bss_conf.beacon_int < 16) 729 vif->bss_conf.beacon_int = 16; 730 bss_changed |= BSS_CHANGED_BEACON_INT; 731 } 732 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 733 vap->iv_dtim_period > 0) { 734 vif->bss_conf.dtim_period = vap->iv_dtim_period; 735 bss_changed |= BSS_CHANGED_BEACON_INFO; 736 } 737 738 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 739 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 740 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 741 742 #ifdef LINUXKPI_DEBUG_80211 743 if (linuxkpi_debug_80211 & D80211_TRACE) 744 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 745 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 746 "sync_device_ts %u bss_changed %#08x\n", 747 __func__, __LINE__, _f, _l, 748 vif->bss_conf.assoc, vif->bss_conf.aid, 749 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 750 vif->bss_conf.sync_dtim_count, 751 (uintmax_t)vif->bss_conf.sync_tsf, 752 vif->bss_conf.sync_device_ts, 753 bss_changed); 754 #endif 755 756 return (bss_changed); 757 } 758 759 static void 760 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 761 { 762 struct ieee80211_hw *hw; 763 int error; 764 765 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 766 return; 767 768 hw = LHW_TO_HW(lhw); 769 770 IEEE80211_UNLOCK(lhw->ic); 771 LKPI_80211_LHW_LOCK(lhw); 772 /* Need to cancel the scan. */ 773 lkpi_80211_mo_cancel_hw_scan(hw, vif); 774 775 /* Need to make sure we see ieee80211_scan_completed. */ 776 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 777 LKPI_80211_LHW_UNLOCK(lhw); 778 IEEE80211_LOCK(lhw->ic); 779 780 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 781 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 782 __func__, error, lhw, vif); 783 } 784 785 static void 786 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 787 { 788 struct lkpi_hw *lhw; 789 int error; 790 bool old; 791 792 old = hw->conf.flags & IEEE80211_CONF_IDLE; 793 if (old == new) 794 return; 795 796 hw->conf.flags ^= IEEE80211_CONF_IDLE; 797 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 798 if (error != 0 && error != EOPNOTSUPP) { 799 lhw = HW_TO_LHW(hw); 800 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 801 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 802 } 803 } 804 805 static void 806 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 807 struct lkpi_hw *lhw) 808 { 809 sta->aid = 0; 810 if (vif->bss_conf.assoc) { 811 struct ieee80211_hw *hw; 812 enum ieee80211_bss_changed changed; 813 814 lhw->update_mc = true; 815 lkpi_update_mcast_filter(lhw->ic, true); 816 817 changed = 0; 818 vif->bss_conf.assoc = false; 819 vif->bss_conf.aid = 0; 820 changed |= BSS_CHANGED_ASSOC; 821 /* 822 * This will remove the sta from firmware for iwlwifi. 823 * So confusing that they use state and flags and ... ^%$%#%$^. 824 */ 825 IMPROVE(); 826 hw = LHW_TO_HW(lhw); 827 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 828 changed); 829 830 lkpi_hw_conf_idle(hw, true); 831 } 832 } 833 834 static void 835 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 836 bool dequeue_seen, bool no_emptyq) 837 { 838 struct lkpi_txq *ltxq; 839 int tid; 840 841 /* Wake up all queues to know they are allocated in the driver. */ 842 for (tid = 0; tid < nitems(sta->txq); tid++) { 843 844 if (tid == IEEE80211_NUM_TIDS) { 845 IMPROVE("station specific?"); 846 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 847 continue; 848 } else if (tid >= hw->queues) 849 continue; 850 851 if (sta->txq[tid] == NULL) 852 continue; 853 854 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 855 if (dequeue_seen && !ltxq->seen_dequeue) 856 continue; 857 858 if (no_emptyq && skb_queue_empty(<xq->skbq)) 859 continue; 860 861 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 862 } 863 } 864 865 /* -------------------------------------------------------------------------- */ 866 867 static int 868 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 869 { 870 871 return (0); 872 } 873 874 /* lkpi_iv_newstate() handles the stop scan case generally. */ 875 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 876 877 static int 878 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 879 { 880 struct linuxkpi_ieee80211_channel *chan; 881 struct ieee80211_chanctx_conf *conf; 882 struct lkpi_hw *lhw; 883 struct ieee80211_hw *hw; 884 struct lkpi_vif *lvif; 885 struct ieee80211_vif *vif; 886 struct ieee80211_node *ni; 887 struct lkpi_sta *lsta; 888 struct ieee80211_sta *sta; 889 enum ieee80211_bss_changed bss_changed; 890 struct ieee80211_prep_tx_info prep_tx_info; 891 uint32_t changed; 892 int error; 893 894 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 895 if (chan == NULL) { 896 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 897 return (ESRCH); 898 } 899 900 lhw = vap->iv_ic->ic_softc; 901 hw = LHW_TO_HW(lhw); 902 lvif = VAP_TO_LVIF(vap); 903 vif = LVIF_TO_VIF(lvif); 904 905 ni = ieee80211_ref_node(vap->iv_bss); 906 907 IEEE80211_UNLOCK(vap->iv_ic); 908 909 /* Add chanctx (or if exists, change it). */ 910 if (vif->chanctx_conf != NULL) { 911 conf = vif->chanctx_conf; 912 IMPROVE("diff changes for changed, working on live copy, rcu"); 913 } else { 914 /* Keep separate alloc as in Linux this is rcu managed? */ 915 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 916 M_LKPI80211, M_WAITOK | M_ZERO); 917 } 918 919 conf->rx_chains_dynamic = 1; 920 conf->rx_chains_static = 1; 921 conf->radar_enabled = 922 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 923 conf->def.chan = chan; 924 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 925 conf->def.center_freq1 = chan->center_freq; 926 conf->def.center_freq2 = 0; 927 /* Responder ... */ 928 conf->min_def.chan = chan; 929 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 930 conf->min_def.center_freq1 = chan->center_freq; 931 conf->min_def.center_freq2 = 0; 932 IMPROVE("currently 20_NOHT only"); 933 934 error = 0; 935 if (vif->chanctx_conf != NULL) { 936 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 937 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 938 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 939 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 940 lkpi_80211_mo_change_chanctx(hw, conf, changed); 941 } else { 942 error = lkpi_80211_mo_add_chanctx(hw, conf); 943 if (error == 0 || error == EOPNOTSUPP) { 944 vif->bss_conf.chandef.chan = conf->def.chan; 945 vif->bss_conf.chandef.width = conf->def.width; 946 vif->bss_conf.chandef.center_freq1 = 947 conf->def.center_freq1; 948 vif->bss_conf.chandef.center_freq2 = 949 conf->def.center_freq2; 950 } else { 951 goto out; 952 } 953 /* Assign vif chanctx. */ 954 if (error == 0) 955 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 956 if (error == EOPNOTSUPP) 957 error = 0; 958 if (error != 0) { 959 lkpi_80211_mo_remove_chanctx(hw, conf); 960 free(conf, M_LKPI80211); 961 goto out; 962 } 963 } 964 IMPROVE("update radiotap chan fields too"); 965 966 /* Set bss info (bss_info_changed). */ 967 bss_changed = 0; 968 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 969 bss_changed |= BSS_CHANGED_BSSID; 970 vif->bss_conf.txpower = ni->ni_txpower; 971 bss_changed |= BSS_CHANGED_TXPOWER; 972 vif->bss_conf.idle = false; 973 bss_changed |= BSS_CHANGED_IDLE; 974 975 /* Should almost assert it is this. */ 976 vif->bss_conf.assoc = false; 977 vif->bss_conf.aid = 0; 978 979 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 980 981 /* RATES */ 982 IMPROVE("bss info: not all needs to come now and rates are missing"); 983 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 984 985 /* 986 * This is a bandaid for now. If we went through (*iv_update_bss)() 987 * and then removed the lsta we end up here without a lsta and have 988 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 989 * would normally do. 990 * XXX-BZ I do not like this but currently we have no good way of 991 * intercepting the bss swap and state changes and packets going out 992 * workflow so live with this. It is a compat layer after all. 993 */ 994 if (ni->ni_drv_data == NULL) { 995 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 996 if (lsta == NULL) { 997 error = ENOMEM; 998 goto out; 999 } 1000 lsta->ni = ieee80211_ref_node(ni); 1001 LKPI_80211_LVIF_LOCK(lvif); 1002 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1003 LKPI_80211_LVIF_UNLOCK(lvif); 1004 } else { 1005 lsta = ni->ni_drv_data; 1006 } 1007 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1008 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1009 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1010 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1011 sta = LSTA_TO_STA(lsta); 1012 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1013 if (error != 0) { 1014 IMPROVE("do we need to undo the chan ctx?"); 1015 goto out; 1016 } 1017 #if 0 1018 lsta->added_to_drv = true; /* mo manages. */ 1019 #endif 1020 1021 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1022 1023 /* 1024 * Wakeup all queues now that sta is there so we have as much time to 1025 * possibly prepare the queue in the driver to be ready for the 1st 1026 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1027 * is no guarantee or way to check. 1028 * XXX-BZ and by now we know that this does not work on all drivers 1029 * for all queues. 1030 */ 1031 lkpi_wake_tx_queues(hw, sta, false, false); 1032 1033 { 1034 int i, count; 1035 1036 for (i = 3 * (hw->queues + 1); i > 0; i--) { 1037 struct lkpi_txq *ltxq; 1038 int tid; 1039 1040 count = 0; 1041 /* Wake up all queues to know they are allocated in the driver. */ 1042 for (tid = 0; tid < nitems(sta->txq); tid++) { 1043 1044 if (tid == IEEE80211_NUM_TIDS) { 1045 IMPROVE("station specific?"); 1046 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1047 continue; 1048 } else if (tid >= hw->queues) 1049 continue; 1050 1051 if (sta->txq[tid] == NULL) 1052 continue; 1053 1054 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1055 if (!ltxq->seen_dequeue) 1056 count++; 1057 } 1058 if (count == 0) 1059 break; 1060 #ifdef LINUXKPI_DEBUG_80211 1061 if (count > 0) 1062 ic_printf(vap->iv_ic, "%s: waiting for %d queues " 1063 "to be allocated by driver\n", __func__, count); 1064 #endif 1065 pause("lkpi80211txq", hz/10); 1066 } 1067 #ifdef LINUXKPI_DEBUG_80211 1068 if (count > 0) 1069 ic_printf(vap->iv_ic, "%s: %d queues still not " 1070 "allocated by driver\n", __func__, count); 1071 #endif 1072 } 1073 1074 /* Start mgd_prepare_tx. */ 1075 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1076 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1077 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1078 lsta->in_mgd = true; 1079 1080 /* 1081 * What is going to happen next: 1082 * - <twiddle> .. we should end up in "auth_to_assoc" 1083 * - event_callback 1084 * - update sta_state (NONE to AUTH) 1085 * - mgd_complete_tx 1086 * (ideally we'd do that on a callback for something else ...) 1087 */ 1088 1089 out: 1090 IEEE80211_LOCK(vap->iv_ic); 1091 if (ni != NULL) 1092 ieee80211_free_node(ni); 1093 return (error); 1094 } 1095 1096 static int 1097 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1098 { 1099 struct lkpi_hw *lhw; 1100 struct ieee80211_hw *hw; 1101 struct lkpi_vif *lvif; 1102 struct ieee80211_vif *vif; 1103 struct ieee80211_node *ni; 1104 struct lkpi_sta *lsta; 1105 struct ieee80211_sta *sta; 1106 struct ieee80211_prep_tx_info prep_tx_info; 1107 int error; 1108 1109 lhw = vap->iv_ic->ic_softc; 1110 hw = LHW_TO_HW(lhw); 1111 lvif = VAP_TO_LVIF(vap); 1112 vif = LVIF_TO_VIF(lvif); 1113 1114 /* Keep ni around. */ 1115 ni = ieee80211_ref_node(vap->iv_bss); 1116 lsta = ni->ni_drv_data; 1117 sta = LSTA_TO_STA(lsta); 1118 1119 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1120 1121 IEEE80211_UNLOCK(vap->iv_ic); 1122 1123 /* flush, drop. */ 1124 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1125 1126 /* Wake tx queues to get packet(s) out. */ 1127 lkpi_wake_tx_queues(hw, sta, true, true); 1128 1129 /* flush, no drop */ 1130 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1131 1132 /* End mgd_complete_tx. */ 1133 if (lsta->in_mgd) { 1134 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1135 prep_tx_info.success = false; 1136 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1137 lsta->in_mgd = false; 1138 } 1139 1140 /* sync_rx_queues */ 1141 lkpi_80211_mo_sync_rx_queues(hw); 1142 1143 /* sta_pre_rcu_remove */ 1144 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1145 1146 /* Take the station down. */ 1147 1148 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1149 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1150 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1151 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1152 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1153 if (error != 0) { 1154 IMPROVE("do we need to undo the chan ctx?"); 1155 goto out; 1156 } 1157 #if 0 1158 lsta->added_to_drv = false; /* mo manages. */ 1159 #endif 1160 1161 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1162 1163 lkpi_lsta_remove(lsta, lvif); 1164 1165 /* conf_tx */ 1166 1167 /* Take the chan ctx down. */ 1168 if (vif->chanctx_conf != NULL) { 1169 struct ieee80211_chanctx_conf *conf; 1170 1171 conf = vif->chanctx_conf; 1172 /* Remove vif context. */ 1173 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1174 /* NB: vif->chanctx_conf is NULL now. */ 1175 1176 /* Remove chan ctx. */ 1177 lkpi_80211_mo_remove_chanctx(hw, conf); 1178 free(conf, M_LKPI80211); 1179 } 1180 1181 out: 1182 IEEE80211_LOCK(vap->iv_ic); 1183 if (ni != NULL) 1184 ieee80211_free_node(ni); 1185 return (error); 1186 } 1187 1188 static int 1189 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1190 { 1191 int error; 1192 1193 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1194 if (error == 0) 1195 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1196 return (error); 1197 } 1198 1199 static int 1200 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1201 { 1202 struct lkpi_hw *lhw; 1203 struct ieee80211_hw *hw; 1204 struct lkpi_vif *lvif; 1205 struct ieee80211_vif *vif; 1206 struct ieee80211_node *ni; 1207 struct lkpi_sta *lsta; 1208 struct ieee80211_sta *sta; 1209 struct ieee80211_prep_tx_info prep_tx_info; 1210 int error; 1211 1212 lhw = vap->iv_ic->ic_softc; 1213 hw = LHW_TO_HW(lhw); 1214 lvif = VAP_TO_LVIF(vap); 1215 vif = LVIF_TO_VIF(lvif); 1216 1217 IEEE80211_UNLOCK(vap->iv_ic); 1218 ni = NULL; 1219 1220 /* Finish auth. */ 1221 IMPROVE("event callback"); 1222 1223 /* Update sta_state (NONE to AUTH). */ 1224 ni = ieee80211_ref_node(vap->iv_bss); 1225 lsta = ni->ni_drv_data; 1226 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1227 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1228 "NONE: %#x\n", __func__, lsta, lsta->state)); 1229 sta = LSTA_TO_STA(lsta); 1230 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1231 if (error != 0) 1232 goto out; 1233 1234 /* End mgd_complete_tx. */ 1235 if (lsta->in_mgd) { 1236 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1237 prep_tx_info.success = true; 1238 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1239 lsta->in_mgd = false; 1240 } 1241 1242 /* Now start assoc. */ 1243 1244 /* Start mgd_prepare_tx. */ 1245 if (!lsta->in_mgd) { 1246 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1247 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1248 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1249 lsta->in_mgd = true; 1250 } 1251 1252 /* Wake tx queue to get packet out. */ 1253 lkpi_wake_tx_queues(hw, sta, true, true); 1254 1255 /* 1256 * <twiddle> .. we end up in "assoc_to_run" 1257 * - update sta_state (AUTH to ASSOC) 1258 * - conf_tx [all] 1259 * - bss_info_changed (assoc, aid, ssid, ..) 1260 * - change_chanctx (if needed) 1261 * - event_callback 1262 * - mgd_complete_tx 1263 */ 1264 1265 out: 1266 IEEE80211_LOCK(vap->iv_ic); 1267 if (ni != NULL) 1268 ieee80211_free_node(ni); 1269 return (error); 1270 } 1271 1272 /* auth_to_auth, assoc_to_assoc. */ 1273 static int 1274 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1275 { 1276 struct lkpi_hw *lhw; 1277 struct ieee80211_hw *hw; 1278 struct lkpi_vif *lvif; 1279 struct ieee80211_vif *vif; 1280 struct ieee80211_node *ni; 1281 struct lkpi_sta *lsta; 1282 struct ieee80211_prep_tx_info prep_tx_info; 1283 1284 lhw = vap->iv_ic->ic_softc; 1285 hw = LHW_TO_HW(lhw); 1286 lvif = VAP_TO_LVIF(vap); 1287 vif = LVIF_TO_VIF(lvif); 1288 1289 ni = ieee80211_ref_node(vap->iv_bss); 1290 1291 IEEE80211_UNLOCK(vap->iv_ic); 1292 lsta = ni->ni_drv_data; 1293 1294 IMPROVE("event callback?"); 1295 1296 /* End mgd_complete_tx. */ 1297 if (lsta->in_mgd) { 1298 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1299 prep_tx_info.success = false; 1300 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1301 lsta->in_mgd = false; 1302 } 1303 1304 /* Now start assoc. */ 1305 1306 /* Start mgd_prepare_tx. */ 1307 if (!lsta->in_mgd) { 1308 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1309 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1310 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1311 lsta->in_mgd = true; 1312 } 1313 1314 IEEE80211_LOCK(vap->iv_ic); 1315 if (ni != NULL) 1316 ieee80211_free_node(ni); 1317 1318 return (0); 1319 } 1320 1321 static int 1322 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1323 { 1324 struct lkpi_hw *lhw; 1325 struct ieee80211_hw *hw; 1326 struct lkpi_vif *lvif; 1327 struct ieee80211_vif *vif; 1328 struct ieee80211_node *ni; 1329 struct lkpi_sta *lsta; 1330 struct ieee80211_sta *sta; 1331 struct ieee80211_prep_tx_info prep_tx_info; 1332 enum ieee80211_bss_changed bss_changed; 1333 int error; 1334 1335 lhw = vap->iv_ic->ic_softc; 1336 hw = LHW_TO_HW(lhw); 1337 lvif = VAP_TO_LVIF(vap); 1338 vif = LVIF_TO_VIF(lvif); 1339 1340 /* Keep ni around. */ 1341 ni = ieee80211_ref_node(vap->iv_bss); 1342 lsta = ni->ni_drv_data; 1343 sta = LSTA_TO_STA(lsta); 1344 1345 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1346 1347 IEEE80211_UNLOCK(vap->iv_ic); 1348 1349 /* flush, drop. */ 1350 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1351 1352 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1353 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1354 !lsta->in_mgd) { 1355 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1356 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1357 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1358 lsta->in_mgd = true; 1359 } 1360 1361 IEEE80211_LOCK(vap->iv_ic); 1362 1363 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1364 error = lvif->iv_newstate(vap, nstate, arg); 1365 if (error != 0) 1366 goto outni; 1367 1368 IEEE80211_UNLOCK(vap->iv_ic); 1369 1370 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1371 1372 /* Wake tx queues to get packet(s) out. */ 1373 lkpi_wake_tx_queues(hw, sta, true, true); 1374 1375 /* flush, no drop */ 1376 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1377 1378 /* End mgd_complete_tx. */ 1379 if (lsta->in_mgd) { 1380 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1381 prep_tx_info.success = false; 1382 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1383 lsta->in_mgd = false; 1384 } 1385 1386 /* sync_rx_queues */ 1387 lkpi_80211_mo_sync_rx_queues(hw); 1388 1389 /* sta_pre_rcu_remove */ 1390 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1391 1392 /* Take the station down. */ 1393 1394 /* Update sta and change state (from AUTH) to NONE. */ 1395 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1396 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1397 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1398 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1399 if (error != 0) 1400 goto out; 1401 1402 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1403 1404 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1405 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1406 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1407 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1408 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1409 if (error != 0) { 1410 IMPROVE("do we need to undo the chan ctx?"); 1411 goto out; 1412 } 1413 #if 0 1414 lsta->added_to_drv = false; /* mo manages. */ 1415 #endif 1416 1417 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1418 1419 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1420 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1421 lkpi_disassoc(sta, vif, lhw); 1422 1423 IMPROVE("Any bss_info changes to announce?"); 1424 bss_changed = 0; 1425 vif->bss_conf.qos = 0; 1426 bss_changed |= BSS_CHANGED_QOS; 1427 vif->bss_conf.ssid_len = 0; 1428 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1429 bss_changed |= BSS_CHANGED_BSSID; 1430 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1431 1432 lkpi_lsta_remove(lsta, lvif); 1433 1434 /* conf_tx */ 1435 1436 /* Take the chan ctx down. */ 1437 if (vif->chanctx_conf != NULL) { 1438 struct ieee80211_chanctx_conf *conf; 1439 1440 conf = vif->chanctx_conf; 1441 /* Remove vif context. */ 1442 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1443 /* NB: vif->chanctx_conf is NULL now. */ 1444 1445 /* Remove chan ctx. */ 1446 lkpi_80211_mo_remove_chanctx(hw, conf); 1447 free(conf, M_LKPI80211); 1448 } 1449 1450 error = EALREADY; 1451 out: 1452 IEEE80211_LOCK(vap->iv_ic); 1453 outni: 1454 if (ni != NULL) 1455 ieee80211_free_node(ni); 1456 return (error); 1457 } 1458 1459 static int 1460 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1461 { 1462 int error; 1463 1464 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1465 if (error != 0 && error != EALREADY) 1466 return (error); 1467 1468 /* At this point iv_bss is long a new node! */ 1469 1470 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1471 return (error); 1472 } 1473 1474 static int 1475 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1476 { 1477 int error; 1478 1479 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1480 return (error); 1481 } 1482 1483 static int 1484 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1485 { 1486 int error; 1487 1488 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1489 return (error); 1490 } 1491 1492 static int 1493 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1494 { 1495 struct lkpi_hw *lhw; 1496 struct ieee80211_hw *hw; 1497 struct lkpi_vif *lvif; 1498 struct ieee80211_vif *vif; 1499 struct ieee80211_node *ni; 1500 struct lkpi_sta *lsta; 1501 struct ieee80211_sta *sta; 1502 struct ieee80211_prep_tx_info prep_tx_info; 1503 enum ieee80211_bss_changed bss_changed; 1504 int error; 1505 1506 lhw = vap->iv_ic->ic_softc; 1507 hw = LHW_TO_HW(lhw); 1508 lvif = VAP_TO_LVIF(vap); 1509 vif = LVIF_TO_VIF(lvif); 1510 1511 IEEE80211_UNLOCK(vap->iv_ic); 1512 ni = NULL; 1513 1514 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1515 "and to lesser extend ieee80211_notify_node_join"); 1516 1517 /* Finish assoc. */ 1518 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1519 ni = ieee80211_ref_node(vap->iv_bss); 1520 lsta = ni->ni_drv_data; 1521 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1522 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1523 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1524 sta = LSTA_TO_STA(lsta); 1525 sta->aid = IEEE80211_NODE_AID(ni); 1526 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1527 if (error != 0) 1528 goto out; 1529 1530 IMPROVE("wme / conf_tx [all]"); 1531 1532 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1533 bss_changed = 0; 1534 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1535 vif->bss_conf.assoc = true; 1536 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1537 bss_changed |= BSS_CHANGED_ASSOC; 1538 } 1539 /* We set SSID but this is not BSSID! */ 1540 vif->bss_conf.ssid_len = ni->ni_esslen; 1541 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1542 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1543 vif->bss_conf.use_short_preamble) { 1544 vif->bss_conf.use_short_preamble ^= 1; 1545 /* bss_changed |= BSS_CHANGED_??? */ 1546 } 1547 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1548 vif->bss_conf.use_short_slot) { 1549 vif->bss_conf.use_short_slot ^= 1; 1550 /* bss_changed |= BSS_CHANGED_??? */ 1551 } 1552 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1553 vif->bss_conf.qos) { 1554 vif->bss_conf.qos ^= 1; 1555 bss_changed |= BSS_CHANGED_QOS; 1556 } 1557 1558 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1559 1560 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1561 1562 /* - change_chanctx (if needed) 1563 * - event_callback 1564 */ 1565 1566 /* End mgd_complete_tx. */ 1567 if (lsta->in_mgd) { 1568 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1569 prep_tx_info.success = true; 1570 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1571 lsta->in_mgd = false; 1572 } 1573 1574 lkpi_hw_conf_idle(hw, false); 1575 1576 /* 1577 * And then: 1578 * - (more packets)? 1579 * - set_key 1580 * - set_default_unicast_key 1581 * - set_key (?) 1582 * - ipv6_addr_change (?) 1583 */ 1584 /* Prepare_multicast && configure_filter. */ 1585 lhw->update_mc = true; 1586 lkpi_update_mcast_filter(vap->iv_ic, true); 1587 1588 if (!ieee80211_node_is_authorized(ni)) { 1589 IMPROVE("net80211 does not consider node authorized"); 1590 } 1591 1592 /* Update sta_state (ASSOC to AUTHORIZED). */ 1593 ni = ieee80211_ref_node(vap->iv_bss); 1594 lsta = ni->ni_drv_data; 1595 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1596 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1597 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1598 sta = LSTA_TO_STA(lsta); 1599 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1600 if (error != 0) { 1601 IMPROVE("undo some changes?"); 1602 goto out; 1603 } 1604 1605 /* - drv_config (?) 1606 * - bss_info_changed 1607 * - set_rekey_data (?) 1608 * 1609 * And now we should be passing packets. 1610 */ 1611 IMPROVE("Need that bssid setting, and the keys"); 1612 1613 bss_changed = 0; 1614 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1615 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1616 1617 out: 1618 IEEE80211_LOCK(vap->iv_ic); 1619 if (ni != NULL) 1620 ieee80211_free_node(ni); 1621 return (error); 1622 } 1623 1624 static int 1625 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1626 { 1627 int error; 1628 1629 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1630 if (error == 0) 1631 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1632 return (error); 1633 } 1634 1635 static int 1636 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1637 { 1638 struct lkpi_hw *lhw; 1639 struct ieee80211_hw *hw; 1640 struct lkpi_vif *lvif; 1641 struct ieee80211_vif *vif; 1642 struct ieee80211_node *ni; 1643 struct lkpi_sta *lsta; 1644 struct ieee80211_sta *sta; 1645 struct ieee80211_prep_tx_info prep_tx_info; 1646 #if 0 1647 enum ieee80211_bss_changed bss_changed; 1648 #endif 1649 int error; 1650 1651 lhw = vap->iv_ic->ic_softc; 1652 hw = LHW_TO_HW(lhw); 1653 lvif = VAP_TO_LVIF(vap); 1654 vif = LVIF_TO_VIF(lvif); 1655 1656 /* Keep ni around. */ 1657 ni = ieee80211_ref_node(vap->iv_bss); 1658 lsta = ni->ni_drv_data; 1659 sta = LSTA_TO_STA(lsta); 1660 1661 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1662 1663 IEEE80211_UNLOCK(vap->iv_ic); 1664 1665 /* flush, drop. */ 1666 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1667 1668 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1669 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1670 !lsta->in_mgd) { 1671 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1672 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1673 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1674 lsta->in_mgd = true; 1675 } 1676 1677 IEEE80211_LOCK(vap->iv_ic); 1678 1679 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1680 error = lvif->iv_newstate(vap, nstate, arg); 1681 if (error != 0) 1682 goto outni; 1683 1684 IEEE80211_UNLOCK(vap->iv_ic); 1685 1686 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1687 1688 /* Wake tx queues to get packet(s) out. */ 1689 lkpi_wake_tx_queues(hw, sta, true, true); 1690 1691 /* flush, no drop */ 1692 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1693 1694 /* End mgd_complete_tx. */ 1695 if (lsta->in_mgd) { 1696 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1697 prep_tx_info.success = false; 1698 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1699 lsta->in_mgd = false; 1700 } 1701 1702 #if 0 1703 /* sync_rx_queues */ 1704 lkpi_80211_mo_sync_rx_queues(hw); 1705 1706 /* sta_pre_rcu_remove */ 1707 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1708 #endif 1709 1710 /* Take the station down. */ 1711 1712 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1713 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1714 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1715 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1716 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1717 if (error != 0) 1718 goto out; 1719 1720 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1721 1722 /* Update sta_state (ASSOC to AUTH). */ 1723 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1724 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1725 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1726 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1727 if (error != 0) 1728 goto out; 1729 1730 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1731 1732 #if 0 1733 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1734 lkpi_disassoc(sta, vif, lhw); 1735 #endif 1736 1737 error = EALREADY; 1738 out: 1739 IEEE80211_LOCK(vap->iv_ic); 1740 outni: 1741 if (ni != NULL) 1742 ieee80211_free_node(ni); 1743 return (error); 1744 } 1745 1746 static int 1747 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1748 { 1749 struct lkpi_hw *lhw; 1750 struct ieee80211_hw *hw; 1751 struct lkpi_vif *lvif; 1752 struct ieee80211_vif *vif; 1753 struct ieee80211_node *ni; 1754 struct lkpi_sta *lsta; 1755 struct ieee80211_sta *sta; 1756 struct ieee80211_prep_tx_info prep_tx_info; 1757 enum ieee80211_bss_changed bss_changed; 1758 int error; 1759 1760 lhw = vap->iv_ic->ic_softc; 1761 hw = LHW_TO_HW(lhw); 1762 lvif = VAP_TO_LVIF(vap); 1763 vif = LVIF_TO_VIF(lvif); 1764 1765 /* Keep ni around. */ 1766 ni = ieee80211_ref_node(vap->iv_bss); 1767 lsta = ni->ni_drv_data; 1768 sta = LSTA_TO_STA(lsta); 1769 1770 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1771 1772 IEEE80211_UNLOCK(vap->iv_ic); 1773 1774 /* flush, drop. */ 1775 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1776 1777 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1778 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1779 !lsta->in_mgd) { 1780 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1781 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1782 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1783 lsta->in_mgd = true; 1784 } 1785 1786 IEEE80211_LOCK(vap->iv_ic); 1787 1788 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1789 error = lvif->iv_newstate(vap, nstate, arg); 1790 if (error != 0) 1791 goto outni; 1792 1793 IEEE80211_UNLOCK(vap->iv_ic); 1794 1795 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1796 1797 /* Wake tx queues to get packet(s) out. */ 1798 lkpi_wake_tx_queues(hw, sta, true, true); 1799 1800 /* flush, no drop */ 1801 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1802 1803 /* End mgd_complete_tx. */ 1804 if (lsta->in_mgd) { 1805 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1806 prep_tx_info.success = false; 1807 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1808 lsta->in_mgd = false; 1809 } 1810 1811 /* sync_rx_queues */ 1812 lkpi_80211_mo_sync_rx_queues(hw); 1813 1814 /* sta_pre_rcu_remove */ 1815 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1816 1817 /* Take the station down. */ 1818 1819 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1820 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1821 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1822 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1823 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1824 if (error != 0) 1825 goto out; 1826 1827 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1828 1829 /* Update sta_state (ASSOC to AUTH). */ 1830 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1831 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1832 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1833 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1834 if (error != 0) 1835 goto out; 1836 1837 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1838 1839 /* Update sta and change state (from AUTH) to NONE. */ 1840 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1841 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1842 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1843 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1844 if (error != 0) 1845 goto out; 1846 1847 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1848 1849 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1850 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1851 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1852 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1853 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1854 if (error != 0) { 1855 IMPROVE("do we need to undo the chan ctx?"); 1856 goto out; 1857 } 1858 #if 0 1859 lsta->added_to_drv = false; /* mo manages. */ 1860 #endif 1861 1862 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1863 1864 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1865 /* 1866 * One would expect this to happen when going off AUTHORIZED. 1867 * See comment there; removes the sta from fw. 1868 */ 1869 lkpi_disassoc(sta, vif, lhw); 1870 1871 IMPROVE("Any bss_info changes to announce?"); 1872 bss_changed = 0; 1873 vif->bss_conf.qos = 0; 1874 bss_changed |= BSS_CHANGED_QOS; 1875 vif->bss_conf.ssid_len = 0; 1876 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1877 bss_changed |= BSS_CHANGED_BSSID; 1878 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1879 1880 lkpi_lsta_remove(lsta, lvif); 1881 1882 /* conf_tx */ 1883 1884 /* Take the chan ctx down. */ 1885 if (vif->chanctx_conf != NULL) { 1886 struct ieee80211_chanctx_conf *conf; 1887 1888 conf = vif->chanctx_conf; 1889 /* Remove vif context. */ 1890 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1891 /* NB: vif->chanctx_conf is NULL now. */ 1892 1893 /* Remove chan ctx. */ 1894 lkpi_80211_mo_remove_chanctx(hw, conf); 1895 free(conf, M_LKPI80211); 1896 } 1897 1898 error = EALREADY; 1899 out: 1900 IEEE80211_LOCK(vap->iv_ic); 1901 outni: 1902 if (ni != NULL) 1903 ieee80211_free_node(ni); 1904 return (error); 1905 } 1906 1907 static int 1908 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1909 { 1910 1911 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1912 } 1913 1914 static int 1915 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1916 { 1917 int error; 1918 1919 error = lkpi_sta_run_to_init(vap, nstate, arg); 1920 if (error != 0 && error != EALREADY) 1921 return (error); 1922 1923 /* At this point iv_bss is long a new node! */ 1924 1925 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1926 return (error); 1927 } 1928 1929 /* -------------------------------------------------------------------------- */ 1930 1931 /* 1932 * The matches the documented state changes in net80211::sta_newstate(). 1933 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1934 * there are "invalid" (so there is a room for failure here). 1935 */ 1936 struct fsm_state { 1937 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1938 enum ieee80211_state ostate; 1939 enum ieee80211_state nstate; 1940 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1941 } sta_state_fsm[] = { 1942 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1943 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1944 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1945 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1946 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1947 1948 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1949 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1950 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1951 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1952 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1953 1954 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1955 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1956 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1957 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1958 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1959 1960 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1961 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1962 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1963 1964 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1965 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1966 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1967 1968 /* Dummy at the end without handler. */ 1969 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1970 }; 1971 1972 static int 1973 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1974 { 1975 struct ieee80211com *ic; 1976 struct lkpi_hw *lhw; 1977 struct lkpi_vif *lvif; 1978 struct ieee80211_vif *vif; 1979 struct fsm_state *s; 1980 enum ieee80211_state ostate; 1981 int error; 1982 1983 ic = vap->iv_ic; 1984 IEEE80211_LOCK_ASSERT(ic); 1985 ostate = vap->iv_state; 1986 1987 #ifdef LINUXKPI_DEBUG_80211 1988 if (linuxkpi_debug_80211 & D80211_TRACE) 1989 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1990 __func__, __LINE__, vap, nstate, arg); 1991 #endif 1992 1993 if (vap->iv_opmode == IEEE80211_M_STA) { 1994 1995 lhw = ic->ic_softc; 1996 lvif = VAP_TO_LVIF(vap); 1997 vif = LVIF_TO_VIF(lvif); 1998 1999 /* No need to replicate this in most state handlers. */ 2000 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2001 lkpi_stop_hw_scan(lhw, vif); 2002 2003 s = sta_state_fsm; 2004 2005 } else { 2006 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2007 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2008 return (ENOSYS); 2009 } 2010 2011 error = 0; 2012 for (; s->handler != NULL; s++) { 2013 if (ostate == s->ostate && nstate == s->nstate) { 2014 #ifdef LINUXKPI_DEBUG_80211 2015 if (linuxkpi_debug_80211 & D80211_TRACE) 2016 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2017 " %d (%s): arg %d.\n", __func__, 2018 ostate, ieee80211_state_name[ostate], 2019 nstate, ieee80211_state_name[nstate], arg); 2020 #endif 2021 error = s->handler(vap, nstate, arg); 2022 break; 2023 } 2024 } 2025 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2026 2027 if (s->handler == NULL) { 2028 IMPROVE("turn this into a KASSERT\n"); 2029 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2030 "%d (%s) -> %d (%s)\n", __func__, 2031 ostate, ieee80211_state_name[ostate], 2032 nstate, ieee80211_state_name[nstate]); 2033 return (ENOSYS); 2034 } 2035 2036 if (error == EALREADY) { 2037 #ifdef LINUXKPI_DEBUG_80211 2038 if (linuxkpi_debug_80211 & D80211_TRACE) 2039 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2040 "%d (%s): iv_newstate already handled: %d.\n", 2041 __func__, ostate, ieee80211_state_name[ostate], 2042 nstate, ieee80211_state_name[nstate], error); 2043 #endif 2044 return (0); 2045 } 2046 2047 if (error != 0) { 2048 /* XXX-BZ currently expected so ignore. */ 2049 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2050 "%d (%s) -> %d (%s)\n", __func__, error, 2051 ostate, ieee80211_state_name[ostate], 2052 nstate, ieee80211_state_name[nstate]); 2053 /* return (error); */ 2054 } 2055 2056 #ifdef LINUXKPI_DEBUG_80211 2057 if (linuxkpi_debug_80211 & D80211_TRACE) 2058 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2059 "calling net80211 parent\n", 2060 __func__, __LINE__, vap, nstate, arg); 2061 #endif 2062 2063 return (lvif->iv_newstate(vap, nstate, arg)); 2064 } 2065 2066 /* -------------------------------------------------------------------------- */ 2067 2068 /* 2069 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2070 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2071 * new node without us knowing and thus our ni/lsta are out of sync. 2072 */ 2073 static struct ieee80211_node * 2074 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2075 { 2076 struct lkpi_vif *lvif; 2077 struct ieee80211_node *obss; 2078 struct lkpi_sta *lsta; 2079 2080 lvif = VAP_TO_LVIF(vap); 2081 obss = vap->iv_bss; 2082 2083 #ifdef LINUXKPI_DEBUG_80211 2084 if (linuxkpi_debug_80211 & D80211_TRACE) 2085 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2086 "ni %p ni_drv_data %p\n", __func__, 2087 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2088 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2089 #endif 2090 2091 /* Nothing to copy from. Just return. */ 2092 if (obss == NULL || obss->ni_drv_data == NULL) 2093 goto out; 2094 2095 /* Nothing to copy to. Just return. */ 2096 IMPROVE("clearing the obss might still be needed?"); 2097 if (ni == NULL) 2098 goto out; 2099 2100 /* Nothing changed? panic? */ 2101 if (obss == ni) 2102 goto out; 2103 2104 lsta = obss->ni_drv_data; 2105 obss->ni_drv_data = ni->ni_drv_data; 2106 ni->ni_drv_data = lsta; 2107 if (lsta != NULL) 2108 lsta->ni = ni; 2109 lsta = obss->ni_drv_data; 2110 if (lsta != NULL) 2111 lsta->ni = obss; 2112 2113 out: 2114 return (lvif->iv_update_bss(vap, ni)); 2115 } 2116 2117 static int 2118 lkpi_ic_wme_update(struct ieee80211com *ic) 2119 { 2120 /* This needs queuing and go at the right moment. */ 2121 #ifdef WITH_WME_UPDATE 2122 struct ieee80211vap *vap; 2123 struct lkpi_hw *lhw; 2124 struct ieee80211_hw *hw; 2125 struct lkpi_vif *lvif; 2126 struct ieee80211_vif *vif; 2127 struct chanAccParams chp; 2128 struct wmeParams wmeparr[WME_NUM_AC]; 2129 struct ieee80211_tx_queue_params txqp; 2130 enum ieee80211_bss_changed changed; 2131 int error; 2132 uint16_t ac; 2133 #endif 2134 2135 IMPROVE(); 2136 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2137 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2138 2139 #ifdef WITH_WME_UPDATE 2140 vap = TAILQ_FIRST(&ic->ic_vaps); 2141 if (vap == NULL) 2142 return (0); 2143 2144 /* We should factor this out into per-vap (*wme_update). */ 2145 lhw = ic->ic_softc; 2146 if (lhw->ops->conf_tx == NULL) 2147 return (0); 2148 2149 /* XXX-BZ check amount of hw queues */ 2150 hw = LHW_TO_HW(lhw); 2151 lvif = VAP_TO_LVIF(vap); 2152 vif = LVIF_TO_VIF(lvif); 2153 2154 ieee80211_wme_ic_getparams(ic, &chp); 2155 IEEE80211_LOCK(ic); 2156 for (ac = 0; ac < WME_NUM_AC; ac++) 2157 wmeparr[ac] = chp.cap_wmeParams[ac]; 2158 IEEE80211_UNLOCK(ic); 2159 2160 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2161 LKPI_80211_LHW_LOCK(lhw); 2162 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2163 struct wmeParams *wmep; 2164 2165 /* XXX-BZ should keep this in lvif? */ 2166 wmep = &wmeparr[ac]; 2167 bzero(&txqp, sizeof(txqp)); 2168 txqp.cw_min = wmep->wmep_logcwmin; 2169 txqp.cw_max = wmep->wmep_logcwmax; 2170 txqp.txop = wmep->wmep_txopLimit; 2171 txqp.aifs = wmep->wmep_aifsn; 2172 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2173 if (error != 0) 2174 printf("%s: conf_tx ac %u failed %d\n", 2175 __func__, ac, error); 2176 } 2177 LKPI_80211_LHW_UNLOCK(lhw); 2178 changed = BSS_CHANGED_QOS; 2179 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2180 #endif 2181 2182 return (0); 2183 } 2184 2185 static struct ieee80211vap * 2186 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2187 int unit, enum ieee80211_opmode opmode, int flags, 2188 const uint8_t bssid[IEEE80211_ADDR_LEN], 2189 const uint8_t mac[IEEE80211_ADDR_LEN]) 2190 { 2191 struct lkpi_hw *lhw; 2192 struct ieee80211_hw *hw; 2193 struct lkpi_vif *lvif; 2194 struct ieee80211vap *vap; 2195 struct ieee80211_vif *vif; 2196 enum ieee80211_bss_changed changed; 2197 size_t len; 2198 int error; 2199 2200 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2201 return (NULL); 2202 2203 lhw = ic->ic_softc; 2204 hw = LHW_TO_HW(lhw); 2205 2206 len = sizeof(*lvif); 2207 len += hw->vif_data_size; /* vif->drv_priv */ 2208 2209 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2210 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2211 TAILQ_INIT(&lvif->lsta_head); 2212 vap = LVIF_TO_VAP(lvif); 2213 2214 vif = LVIF_TO_VIF(lvif); 2215 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2216 vif->p2p = false; 2217 vif->probe_req_reg = false; 2218 vif->type = lkpi_opmode_to_vif_type(opmode); 2219 lvif->wdev.iftype = vif->type; 2220 /* Need to fill in other fields as well. */ 2221 IMPROVE(); 2222 2223 /* XXX-BZ hardcoded for now! */ 2224 #if 1 2225 vif->chanctx_conf = NULL; 2226 vif->bss_conf.idle = true; 2227 vif->bss_conf.ps = false; 2228 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2229 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2230 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2231 vif->bss_conf.qos = false; 2232 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2233 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2234 vif->bss_conf.assoc = false; 2235 vif->bss_conf.aid = 0; 2236 #endif 2237 #if 0 2238 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2239 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2240 vif->bss_conf.beacon_int = ic->ic_bintval; 2241 /* iwlwifi bug. */ 2242 if (vif->bss_conf.beacon_int < 16) 2243 vif->bss_conf.beacon_int = 16; 2244 #endif 2245 IMPROVE(); 2246 2247 error = lkpi_80211_mo_start(hw); 2248 if (error != 0) { 2249 printf("%s: failed to start hw: %d\n", __func__, error); 2250 mtx_destroy(&lvif->mtx); 2251 free(lvif, M_80211_VAP); 2252 return (NULL); 2253 } 2254 2255 error = lkpi_80211_mo_add_interface(hw, vif); 2256 if (error != 0) { 2257 IMPROVE(); /* XXX-BZ mo_stop()? */ 2258 printf("%s: failed to add interface: %d\n", __func__, error); 2259 mtx_destroy(&lvif->mtx); 2260 free(lvif, M_80211_VAP); 2261 return (NULL); 2262 } 2263 2264 LKPI_80211_LHW_LVIF_LOCK(lhw); 2265 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2266 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2267 2268 /* Set bss_info. */ 2269 changed = 0; 2270 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2271 2272 /* conf_tx setup; default WME? */ 2273 2274 /* Force MC init. */ 2275 lkpi_update_mcast_filter(ic, true); 2276 2277 IMPROVE(); 2278 2279 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2280 2281 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2282 lvif->iv_newstate = vap->iv_newstate; 2283 vap->iv_newstate = lkpi_iv_newstate; 2284 lvif->iv_update_bss = vap->iv_update_bss; 2285 vap->iv_update_bss = lkpi_iv_update_bss; 2286 2287 /* Key management. */ 2288 if (lhw->ops->set_key != NULL) { 2289 #ifdef TRY_HW_CRYPTO 2290 vap->iv_key_set = lkpi_iv_key_set; 2291 vap->iv_key_delete = lkpi_iv_key_delete; 2292 #endif 2293 } 2294 2295 ieee80211_ratectl_init(vap); 2296 2297 /* Complete setup. */ 2298 ieee80211_vap_attach(vap, ieee80211_media_change, 2299 ieee80211_media_status, mac); 2300 2301 if (hw->max_listen_interval == 0) 2302 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2303 hw->conf.listen_interval = hw->max_listen_interval; 2304 ic->ic_set_channel(ic); 2305 2306 /* XXX-BZ do we need to be able to update these? */ 2307 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2308 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2309 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2310 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2311 /* any others? */ 2312 IMPROVE(); 2313 2314 return (vap); 2315 } 2316 2317 static void 2318 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2319 { 2320 struct ieee80211com *ic; 2321 struct lkpi_hw *lhw; 2322 struct ieee80211_hw *hw; 2323 struct lkpi_vif *lvif; 2324 struct ieee80211_vif *vif; 2325 2326 lvif = VAP_TO_LVIF(vap); 2327 vif = LVIF_TO_VIF(lvif); 2328 ic = vap->iv_ic; 2329 lhw = ic->ic_softc; 2330 hw = LHW_TO_HW(lhw); 2331 2332 LKPI_80211_LHW_LVIF_LOCK(lhw); 2333 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2334 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2335 lkpi_80211_mo_remove_interface(hw, vif); 2336 2337 ieee80211_ratectl_deinit(vap); 2338 ieee80211_vap_detach(vap); 2339 mtx_destroy(&lvif->mtx); 2340 free(lvif, M_80211_VAP); 2341 } 2342 2343 static void 2344 lkpi_ic_update_mcast(struct ieee80211com *ic) 2345 { 2346 2347 lkpi_update_mcast_filter(ic, false); 2348 TRACEOK(); 2349 } 2350 2351 static void 2352 lkpi_ic_update_promisc(struct ieee80211com *ic) 2353 { 2354 2355 UNIMPLEMENTED; 2356 } 2357 2358 static void 2359 lkpi_ic_update_chw(struct ieee80211com *ic) 2360 { 2361 2362 UNIMPLEMENTED; 2363 } 2364 2365 /* Start / stop device. */ 2366 static void 2367 lkpi_ic_parent(struct ieee80211com *ic) 2368 { 2369 struct lkpi_hw *lhw; 2370 struct ieee80211_hw *hw; 2371 int error; 2372 bool start_all; 2373 2374 IMPROVE(); 2375 2376 lhw = ic->ic_softc; 2377 hw = LHW_TO_HW(lhw); 2378 start_all = false; 2379 2380 if (ic->ic_nrunning > 0) { 2381 error = lkpi_80211_mo_start(hw); 2382 if (error == 0) 2383 start_all = true; 2384 } else { 2385 lkpi_80211_mo_stop(hw); 2386 } 2387 2388 if (start_all) 2389 ieee80211_start_all(ic); 2390 } 2391 2392 bool 2393 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2394 size_t ie_ids_len) 2395 { 2396 int i; 2397 2398 for (i = 0; i < ie_ids_len; i++) { 2399 if (ie == *ie_ids) 2400 return (true); 2401 } 2402 2403 return (false); 2404 } 2405 2406 /* Return true if skipped; false if error. */ 2407 bool 2408 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2409 { 2410 size_t x; 2411 uint8_t l; 2412 2413 x = *xp; 2414 2415 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2416 __func__, x, ies_len, ies)); 2417 l = ies[x + 1]; 2418 x += 2 + l; 2419 2420 if (x > ies_len) 2421 return (false); 2422 2423 *xp = x; 2424 return (true); 2425 } 2426 2427 static uint8_t * 2428 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2429 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2430 { 2431 struct ieee80211_supported_band *supband; 2432 struct linuxkpi_ieee80211_channel *channels; 2433 const struct ieee80211_channel *chan; 2434 const struct ieee80211_rateset *rs; 2435 uint8_t *pb; 2436 int band, i; 2437 2438 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2439 if ((band_mask & (1 << band)) == 0) 2440 continue; 2441 2442 supband = hw->wiphy->bands[band]; 2443 /* 2444 * This should not happen; 2445 * band_mask is a bitmask of valid bands to scan on. 2446 */ 2447 if (supband == NULL || supband->n_channels == 0) 2448 continue; 2449 2450 /* Find a first channel to get the mode and rates from. */ 2451 channels = supband->channels; 2452 chan = NULL; 2453 for (i = 0; i < supband->n_channels; i++) { 2454 2455 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2456 continue; 2457 2458 chan = ieee80211_find_channel(vap->iv_ic, 2459 channels[i].center_freq, 0); 2460 if (chan != NULL) 2461 break; 2462 } 2463 2464 /* This really should not happen. */ 2465 if (chan == NULL) 2466 continue; 2467 2468 pb = p; 2469 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2470 p = ieee80211_add_rates(p, rs); 2471 p = ieee80211_add_xrates(p, rs); 2472 2473 scan_ies->ies[band] = pb; 2474 scan_ies->len[band] = p - pb; 2475 } 2476 2477 /* Add common_ies */ 2478 pb = p; 2479 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2480 vap->iv_wpa_ie != NULL) { 2481 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2482 p += 2 + vap->iv_wpa_ie[1]; 2483 } 2484 if (vap->iv_appie_probereq != NULL) { 2485 memcpy(p, vap->iv_appie_probereq->ie_data, 2486 vap->iv_appie_probereq->ie_len); 2487 p += vap->iv_appie_probereq->ie_len; 2488 } 2489 scan_ies->common_ies = pb; 2490 scan_ies->common_ie_len = p - pb; 2491 2492 return (p); 2493 } 2494 2495 static void 2496 lkpi_ic_scan_start(struct ieee80211com *ic) 2497 { 2498 struct lkpi_hw *lhw; 2499 struct ieee80211_hw *hw; 2500 struct lkpi_vif *lvif; 2501 struct ieee80211_vif *vif; 2502 struct ieee80211_scan_state *ss; 2503 struct ieee80211vap *vap; 2504 int error; 2505 2506 lhw = ic->ic_softc; 2507 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2508 /* A scan is still running. */ 2509 return; 2510 } 2511 2512 ss = ic->ic_scan; 2513 vap = ss->ss_vap; 2514 if (vap->iv_state != IEEE80211_S_SCAN) { 2515 IMPROVE("We need to be able to scan if not in S_SCAN"); 2516 return; 2517 } 2518 2519 hw = LHW_TO_HW(lhw); 2520 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2521 sw_scan: 2522 lvif = VAP_TO_LVIF(vap); 2523 vif = LVIF_TO_VIF(lvif); 2524 2525 if (vap->iv_state == IEEE80211_S_SCAN) 2526 lkpi_hw_conf_idle(hw, false); 2527 2528 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2529 /* net80211::scan_start() handled PS for us. */ 2530 IMPROVE(); 2531 /* XXX Also means it is too late to flush queues? 2532 * need to check iv_sta_ps or overload? */ 2533 /* XXX want to adjust ss end time/ maxdwell? */ 2534 2535 } else { 2536 struct ieee80211_channel *c; 2537 struct ieee80211_scan_request *hw_req; 2538 struct linuxkpi_ieee80211_channel *lc, **cpp; 2539 struct cfg80211_ssid *ssids; 2540 struct cfg80211_scan_6ghz_params *s6gp; 2541 size_t chan_len, nchan, ssids_len, s6ghzlen; 2542 int band, i, ssid_count, common_ie_len; 2543 uint32_t band_mask; 2544 uint8_t *ie, *ieend; 2545 2546 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2547 IMPROVE("individual band scans not yet supported"); 2548 /* In theory net80211 would have to drive this. */ 2549 return; 2550 } 2551 2552 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2553 ssids_len = ssid_count * sizeof(*ssids); 2554 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2555 2556 band_mask = 0; 2557 nchan = 0; 2558 for (i = ss->ss_next; i < ss->ss_last; i++) { 2559 nchan++; 2560 band = lkpi_net80211_chan_to_nl80211_band( 2561 ss->ss_chans[ss->ss_next + i]); 2562 band_mask |= (1 << band); 2563 } 2564 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2565 2566 common_ie_len = 0; 2567 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2568 vap->iv_wpa_ie != NULL) 2569 common_ie_len += vap->iv_wpa_ie[1]; 2570 if (vap->iv_appie_probereq != NULL) 2571 common_ie_len += vap->iv_appie_probereq->ie_len; 2572 2573 /* We would love to check this at an earlier stage... */ 2574 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2575 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2576 "wiphy->max_scan_ie_len %d\n", __func__, 2577 common_ie_len, hw->wiphy->max_scan_ie_len); 2578 } 2579 2580 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2581 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2582 2583 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2584 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2585 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2586 2587 hw_req->req.flags = 0; /* XXX ??? */ 2588 /* hw_req->req.wdev */ 2589 hw_req->req.wiphy = hw->wiphy; 2590 hw_req->req.no_cck = false; /* XXX */ 2591 #if 0 2592 /* This seems to pessimise default scanning behaviour. */ 2593 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2594 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2595 #endif 2596 #ifdef __notyet__ 2597 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2598 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2599 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2600 #endif 2601 2602 hw_req->req.n_channels = nchan; 2603 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2604 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2605 for (i = 0; i < nchan; i++) { 2606 *(cpp + i) = 2607 (struct linuxkpi_ieee80211_channel *)(lc + i); 2608 } 2609 for (i = 0; i < nchan; i++) { 2610 c = ss->ss_chans[ss->ss_next + i]; 2611 2612 lc->hw_value = c->ic_ieee; 2613 lc->center_freq = c->ic_freq; 2614 /* lc->flags */ 2615 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2616 lc->max_power = c->ic_maxpower; 2617 /* lc-> ... */ 2618 lc++; 2619 } 2620 2621 hw_req->req.n_ssids = ssid_count; 2622 if (hw_req->req.n_ssids > 0) { 2623 ssids = (struct cfg80211_ssid *)lc; 2624 hw_req->req.ssids = ssids; 2625 for (i = 0; i < ssid_count; i++) { 2626 ssids->ssid_len = ss->ss_ssid[i].len; 2627 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2628 ss->ss_ssid[i].len); 2629 ssids++; 2630 } 2631 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2632 } else { 2633 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2634 } 2635 2636 /* 6GHz one day. */ 2637 hw_req->req.n_6ghz_params = 0; 2638 hw_req->req.scan_6ghz_params = NULL; 2639 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2640 /* s6gp->... */ 2641 2642 ie = ieend = (uint8_t *)s6gp; 2643 /* Copy per-band IEs, copy common IEs */ 2644 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2645 hw_req->req.ie = ie; 2646 hw_req->req.ie_len = ieend - ie; 2647 2648 lvif = VAP_TO_LVIF(vap); 2649 vif = LVIF_TO_VIF(lvif); 2650 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2651 if (error != 0) { 2652 ieee80211_cancel_scan(vap); 2653 2654 free(hw_req, M_LKPI80211); 2655 lhw->hw_req = NULL; 2656 2657 /* 2658 * XXX-SIGH magic number. 2659 * rtw88 has a magic "return 1" if offloading scan is 2660 * not possible. Fall back to sw scan in that case. 2661 */ 2662 if (error == 1) { 2663 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2664 ieee80211_start_scan(vap, 2665 IEEE80211_SCAN_ACTIVE | 2666 IEEE80211_SCAN_NOPICK | 2667 IEEE80211_SCAN_ONCE, 2668 IEEE80211_SCAN_FOREVER, 2669 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2670 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2671 vap->iv_des_nssid, vap->iv_des_ssid); 2672 goto sw_scan; 2673 } 2674 2675 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2676 __func__, error); 2677 } 2678 } 2679 } 2680 2681 static void 2682 lkpi_ic_scan_end(struct ieee80211com *ic) 2683 { 2684 struct lkpi_hw *lhw; 2685 struct ieee80211_scan_state *ss; 2686 struct ieee80211vap *vap; 2687 2688 lhw = ic->ic_softc; 2689 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2690 return; 2691 } 2692 2693 ss = ic->ic_scan; 2694 vap = ss->ss_vap; 2695 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2696 /* Nothing to do. */ 2697 } else { 2698 struct ieee80211_hw *hw; 2699 struct lkpi_vif *lvif; 2700 struct ieee80211_vif *vif; 2701 2702 hw = LHW_TO_HW(lhw); 2703 lvif = VAP_TO_LVIF(vap); 2704 vif = LVIF_TO_VIF(lvif); 2705 lkpi_80211_mo_sw_scan_complete(hw, vif); 2706 2707 /* Send PS to stop buffering if n80211 does not for us? */ 2708 2709 if (vap->iv_state == IEEE80211_S_SCAN) 2710 lkpi_hw_conf_idle(hw, true); 2711 } 2712 } 2713 2714 static void 2715 lkpi_ic_set_channel(struct ieee80211com *ic) 2716 { 2717 struct lkpi_hw *lhw; 2718 struct ieee80211_hw *hw; 2719 struct ieee80211_channel *c; 2720 struct linuxkpi_ieee80211_channel *chan; 2721 int error; 2722 2723 lhw = ic->ic_softc; 2724 2725 /* If we do not support (*config)() save us the work. */ 2726 if (lhw->ops->config == NULL) 2727 return; 2728 2729 c = ic->ic_curchan; 2730 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2731 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2732 c, lhw->ops->config); 2733 return; 2734 } 2735 2736 chan = lkpi_find_lkpi80211_chan(lhw, c); 2737 if (chan == NULL) { 2738 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2739 c, chan); 2740 return; 2741 } 2742 2743 /* XXX max power for scanning? */ 2744 IMPROVE(); 2745 2746 hw = LHW_TO_HW(lhw); 2747 cfg80211_chandef_create(&hw->conf.chandef, chan, 2748 NL80211_CHAN_NO_HT); 2749 2750 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2751 if (error != 0 && error != EOPNOTSUPP) { 2752 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2753 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2754 /* XXX should we unroll to the previous chandef? */ 2755 IMPROVE(); 2756 } else { 2757 /* Update radiotap channels as well. */ 2758 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2759 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2760 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2761 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2762 } 2763 2764 /* Currently PS is hard coded off! Not sure it belongs here. */ 2765 IMPROVE(); 2766 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2767 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2768 hw->conf.flags &= ~IEEE80211_CONF_PS; 2769 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2770 if (error != 0 && error != EOPNOTSUPP) 2771 ic_printf(ic, "ERROR: %s: config %#0x returned " 2772 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2773 error); 2774 } 2775 } 2776 2777 static struct ieee80211_node * 2778 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2779 const uint8_t mac[IEEE80211_ADDR_LEN]) 2780 { 2781 struct ieee80211com *ic; 2782 struct lkpi_hw *lhw; 2783 struct ieee80211_node *ni; 2784 struct ieee80211_hw *hw; 2785 struct lkpi_sta *lsta; 2786 2787 ic = vap->iv_ic; 2788 lhw = ic->ic_softc; 2789 2790 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2791 if (lhw->ic_node_alloc == NULL) 2792 return (NULL); 2793 2794 ni = lhw->ic_node_alloc(vap, mac); 2795 if (ni == NULL) 2796 return (NULL); 2797 2798 hw = LHW_TO_HW(lhw); 2799 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2800 if (lsta == NULL) { 2801 if (lhw->ic_node_free != NULL) 2802 lhw->ic_node_free(ni); 2803 return (NULL); 2804 } 2805 2806 return (ni); 2807 } 2808 2809 static int 2810 lkpi_ic_node_init(struct ieee80211_node *ni) 2811 { 2812 struct ieee80211com *ic; 2813 struct lkpi_hw *lhw; 2814 struct lkpi_sta *lsta; 2815 struct lkpi_vif *lvif; 2816 int error; 2817 2818 ic = ni->ni_ic; 2819 lhw = ic->ic_softc; 2820 2821 if (lhw->ic_node_init != NULL) { 2822 error = lhw->ic_node_init(ni); 2823 if (error != 0) 2824 return (error); 2825 } 2826 2827 lvif = VAP_TO_LVIF(ni->ni_vap); 2828 2829 lsta = ni->ni_drv_data; 2830 2831 /* Now take the reference before linking it to the table. */ 2832 lsta->ni = ieee80211_ref_node(ni); 2833 2834 LKPI_80211_LVIF_LOCK(lvif); 2835 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2836 LKPI_80211_LVIF_UNLOCK(lvif); 2837 2838 /* XXX-BZ Sync other state over. */ 2839 IMPROVE(); 2840 2841 return (0); 2842 } 2843 2844 static void 2845 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2846 { 2847 struct ieee80211com *ic; 2848 struct lkpi_hw *lhw; 2849 2850 ic = ni->ni_ic; 2851 lhw = ic->ic_softc; 2852 2853 /* XXX-BZ remove from driver, ... */ 2854 IMPROVE(); 2855 2856 if (lhw->ic_node_cleanup != NULL) 2857 lhw->ic_node_cleanup(ni); 2858 } 2859 2860 static void 2861 lkpi_ic_node_free(struct ieee80211_node *ni) 2862 { 2863 struct ieee80211com *ic; 2864 struct lkpi_hw *lhw; 2865 struct lkpi_sta *lsta; 2866 2867 ic = ni->ni_ic; 2868 lhw = ic->ic_softc; 2869 lsta = ni->ni_drv_data; 2870 if (lsta == NULL) 2871 goto out; 2872 2873 /* XXX-BZ free resources, ... */ 2874 IMPROVE(); 2875 2876 /* Flush mbufq (make sure to release ni refs!). */ 2877 #ifdef __notyet__ 2878 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2879 __func__, lsta, mbufq_len(&lsta->txq))); 2880 #endif 2881 /* Drain taskq. */ 2882 2883 /* Drain sta->txq[] */ 2884 mtx_destroy(&lsta->txq_mtx); 2885 2886 /* Remove lsta if added_to_drv. */ 2887 /* Remove lsta from vif */ 2888 2889 /* remove ref from lsta node... */ 2890 2891 /* Free lsta. */ 2892 2893 out: 2894 if (lhw->ic_node_free != NULL) 2895 lhw->ic_node_free(ni); 2896 } 2897 2898 static int 2899 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2900 const struct ieee80211_bpf_params *params __unused) 2901 { 2902 struct lkpi_sta *lsta; 2903 2904 lsta = ni->ni_drv_data; 2905 2906 /* Queue the packet and enqueue the task to handle it. */ 2907 LKPI_80211_LSTA_LOCK(lsta); 2908 mbufq_enqueue(&lsta->txq, m); 2909 LKPI_80211_LSTA_UNLOCK(lsta); 2910 2911 #ifdef LINUXKPI_DEBUG_80211 2912 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2913 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2914 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2915 mbufq_len(&lsta->txq)); 2916 #endif 2917 2918 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2919 return (0); 2920 } 2921 2922 static void 2923 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2924 { 2925 struct ieee80211_node *ni; 2926 struct ieee80211_frame *wh; 2927 struct ieee80211_key *k; 2928 struct sk_buff *skb; 2929 struct ieee80211com *ic; 2930 struct lkpi_hw *lhw; 2931 struct ieee80211_hw *hw; 2932 struct lkpi_vif *lvif; 2933 struct ieee80211_vif *vif; 2934 struct ieee80211_channel *c; 2935 struct ieee80211_tx_control control; 2936 struct ieee80211_tx_info *info; 2937 struct ieee80211_sta *sta; 2938 void *buf; 2939 int ac; 2940 2941 M_ASSERTPKTHDR(m); 2942 #ifdef LINUXKPI_DEBUG_80211 2943 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2944 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2945 #endif 2946 2947 ni = lsta->ni; 2948 #ifndef TRY_HW_CRYPTO 2949 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2950 wh = mtod(m, struct ieee80211_frame *); 2951 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2952 /* Retrieve key for TX && do software encryption. */ 2953 k = ieee80211_crypto_encap(ni, m); 2954 if (k == NULL) { 2955 ieee80211_free_node(ni); 2956 m_freem(m); 2957 return; 2958 } 2959 } 2960 #endif 2961 2962 ic = ni->ni_ic; 2963 lhw = ic->ic_softc; 2964 hw = LHW_TO_HW(lhw); 2965 c = ni->ni_chan; 2966 2967 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2968 struct lkpi_radiotap_tx_hdr *rtap; 2969 2970 rtap = &lhw->rtap_tx; 2971 rtap->wt_flags = 0; 2972 if (k != NULL) 2973 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2974 if (m->m_flags & M_FRAG) 2975 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2976 IMPROVE(); 2977 rtap->wt_rate = 0; 2978 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2979 rtap->wt_chan_freq = htole16(c->ic_freq); 2980 rtap->wt_chan_flags = htole16(c->ic_flags); 2981 } 2982 2983 ieee80211_radiotap_tx(ni->ni_vap, m); 2984 } 2985 2986 /* 2987 * net80211 should handle hw->extra_tx_headroom. 2988 * Though for as long as we are copying we don't mind. 2989 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2990 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2991 */ 2992 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2993 if (skb == NULL) { 2994 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2995 ieee80211_free_node(ni); 2996 m_freem(m); 2997 return; 2998 } 2999 skb_reserve(skb, hw->extra_tx_headroom); 3000 3001 /* XXX-BZ we need a SKB version understanding mbuf. */ 3002 /* Save the mbuf for ieee80211_tx_complete(). */ 3003 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3004 skb->m = m; 3005 #if 0 3006 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3007 #else 3008 buf = skb_put(skb, m->m_pkthdr.len); 3009 m_copydata(m, 0, m->m_pkthdr.len, buf); 3010 #endif 3011 /* Save the ni. */ 3012 m->m_pkthdr.PH_loc.ptr = ni; 3013 3014 lvif = VAP_TO_LVIF(ni->ni_vap); 3015 vif = LVIF_TO_VIF(lvif); 3016 3017 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 3018 ac = M_WME_GETAC(m); 3019 skb->priority = WME_AC_TO_TID(ac); 3020 ac = lkpi_ac_net_to_l80211(ac); 3021 skb_set_queue_mapping(skb, ac); 3022 3023 info = IEEE80211_SKB_CB(skb); 3024 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3025 /* Slight delay; probably only happens on scanning so fine? */ 3026 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3027 c = ic->ic_curchan; 3028 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3029 info->hw_queue = ac; /* XXX-BZ is this correct? */ 3030 if (m->m_flags & M_EAPOL) 3031 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3032 info->control.vif = vif; 3033 /* XXX-BZ info->control.rates */ 3034 3035 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3036 if (lsta != NULL) { 3037 sta = LSTA_TO_STA(lsta); 3038 #ifdef TRY_HW_CRYPTO 3039 info->control.hw_key = lsta->kc; 3040 #endif 3041 } else { 3042 sta = NULL; 3043 } 3044 3045 IMPROVE(); 3046 3047 if (sta != NULL) { 3048 struct lkpi_txq *ltxq; 3049 3050 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 3051 /* 3052 * We currently do not use queues but do direct TX. 3053 * The exception to the rule is initial packets, as we cannot 3054 * TX until queues are allocated (at least for iwlwifi). 3055 * So we wake_tx_queue in newstate and register any dequeue 3056 * calls. In the time until then we queue packets and 3057 * let the driver deal with them. 3058 */ 3059 if (!ltxq->seen_dequeue) { 3060 3061 /* Prevent an ordering problem, likely other issues. */ 3062 while (!skb_queue_empty(<xq->skbq)) { 3063 struct sk_buff *skb2; 3064 3065 skb2 = skb_dequeue(<xq->skbq); 3066 if (skb2 != NULL) { 3067 memset(&control, 0, sizeof(control)); 3068 control.sta = sta; 3069 lkpi_80211_mo_tx(hw, &control, skb2); 3070 } 3071 } 3072 goto ops_tx; 3073 } 3074 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 3075 goto ops_tx; 3076 3077 skb_queue_tail(<xq->skbq, skb); 3078 #ifdef LINUXKPI_DEBUG_80211 3079 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3080 printf("%s:%d lsta %p sta %p ni %p %6D skb %p lxtq %p " 3081 "qlen %u WAKE_TX_Q ac %d prio %u qmap %u\n", 3082 __func__, __LINE__, lsta, sta, ni, 3083 ni->ni_macaddr, ":", skb, ltxq, 3084 skb_queue_len(<xq->skbq), ac, 3085 skb->priority, skb->qmap); 3086 #endif 3087 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[ac]); /* XXX-BZ */ 3088 return; 3089 } 3090 3091 ops_tx: 3092 #ifdef LINUXKPI_DEBUG_80211 3093 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3094 printf("%s:%d lsta %p sta %p ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 3095 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3096 skb, ac, skb->priority, skb->qmap); 3097 #endif 3098 memset(&control, 0, sizeof(control)); 3099 control.sta = sta; 3100 3101 lkpi_80211_mo_tx(hw, &control, skb); 3102 return; 3103 } 3104 3105 static void 3106 lkpi_80211_txq_task(void *ctx, int pending) 3107 { 3108 struct lkpi_sta *lsta; 3109 struct mbufq mq; 3110 struct mbuf *m; 3111 3112 lsta = ctx; 3113 3114 #ifdef LINUXKPI_DEBUG_80211 3115 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3116 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3117 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3118 pending, mbufq_len(&lsta->txq)); 3119 #endif 3120 3121 mbufq_init(&mq, IFQ_MAXLEN); 3122 3123 LKPI_80211_LSTA_LOCK(lsta); 3124 mbufq_concat(&mq, &lsta->txq); 3125 LKPI_80211_LSTA_UNLOCK(lsta); 3126 3127 m = mbufq_dequeue(&mq); 3128 while (m != NULL) { 3129 lkpi_80211_txq_tx_one(lsta, m); 3130 m = mbufq_dequeue(&mq); 3131 } 3132 } 3133 3134 static int 3135 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3136 { 3137 3138 /* XXX TODO */ 3139 IMPROVE(); 3140 3141 /* Quick and dirty cheating hack. */ 3142 struct ieee80211_node *ni; 3143 3144 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3145 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3146 } 3147 3148 static void 3149 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3150 int *n, struct ieee80211_channel *c) 3151 { 3152 struct lkpi_hw *lhw; 3153 struct ieee80211_hw *hw; 3154 struct linuxkpi_ieee80211_channel *channels; 3155 uint8_t bands[IEEE80211_MODE_BYTES]; 3156 int chan_flags, error, i, nchans; 3157 3158 /* Channels */ 3159 lhw = ic->ic_softc; 3160 hw = LHW_TO_HW(lhw); 3161 3162 /* NL80211_BAND_2GHZ */ 3163 nchans = 0; 3164 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3165 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3166 if (nchans > 0) { 3167 memset(bands, 0, sizeof(bands)); 3168 chan_flags = 0; 3169 setbit(bands, IEEE80211_MODE_11B); 3170 /* XXX-BZ unclear how to check for 11g. */ 3171 setbit(bands, IEEE80211_MODE_11G); 3172 #ifdef __notyet__ 3173 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3174 setbit(bands, IEEE80211_MODE_11NG); 3175 chan_flags |= NET80211_CBW_FLAG_HT40; 3176 } 3177 #endif 3178 3179 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3180 for (i = 0; i < nchans && *n < maxchan; i++) { 3181 uint32_t nflags = 0; 3182 int cflags = chan_flags; 3183 3184 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3185 printf("%s: %s: Skipping disabled chan " 3186 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3187 channels[i].hw_value, 3188 channels[i].center_freq, channels[i].flags); 3189 continue; 3190 } 3191 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3192 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3193 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3194 nflags |= IEEE80211_CHAN_DFS; 3195 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3196 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3197 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3198 cflags &= ~NET80211_CBW_FLAG_VHT80; 3199 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3200 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3201 cflags &= ~NET80211_CBW_FLAG_HT40; 3202 3203 error = ieee80211_add_channel_cbw(c, maxchan, n, 3204 channels[i].hw_value, channels[i].center_freq, 3205 channels[i].max_power, 3206 nflags, bands, chan_flags); 3207 /* net80211::ENOBUFS: *n >= maxchans */ 3208 if (error != 0 && error != ENOBUFS) 3209 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3210 "returned error %d\n", ic->ic_name, 3211 __func__, channels[i].hw_value, 3212 channels[i].center_freq, channels[i].flags, 3213 nflags, chan_flags, cflags, error); 3214 if (error != 0) 3215 break; 3216 } 3217 } 3218 3219 /* NL80211_BAND_5GHZ */ 3220 nchans = 0; 3221 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3222 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3223 if (nchans > 0) { 3224 memset(bands, 0, sizeof(bands)); 3225 chan_flags = 0; 3226 setbit(bands, IEEE80211_MODE_11A); 3227 #ifdef __not_yet__ 3228 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3229 setbit(bands, IEEE80211_MODE_11NA); 3230 chan_flags |= NET80211_CBW_FLAG_HT40; 3231 } 3232 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3233 3234 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3235 ic->ic_vhtcaps = 3236 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3237 3238 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3239 chan_flags |= NET80211_CBW_FLAG_VHT80; 3240 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3241 ic->ic_vhtcaps)) 3242 chan_flags |= NET80211_CBW_FLAG_VHT160; 3243 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3244 ic->ic_vhtcaps)) 3245 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3246 } 3247 #endif 3248 3249 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3250 for (i = 0; i < nchans && *n < maxchan; i++) { 3251 uint32_t nflags = 0; 3252 int cflags = chan_flags; 3253 3254 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3255 printf("%s: %s: Skipping disabled chan " 3256 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3257 channels[i].hw_value, 3258 channels[i].center_freq, channels[i].flags); 3259 continue; 3260 } 3261 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3262 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3263 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3264 nflags |= IEEE80211_CHAN_DFS; 3265 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3266 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3267 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3268 cflags &= ~NET80211_CBW_FLAG_VHT80; 3269 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3270 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3271 cflags &= ~NET80211_CBW_FLAG_HT40; 3272 3273 error = ieee80211_add_channel_cbw(c, maxchan, n, 3274 channels[i].hw_value, channels[i].center_freq, 3275 channels[i].max_power, 3276 nflags, bands, chan_flags); 3277 /* net80211::ENOBUFS: *n >= maxchans */ 3278 if (error != 0 && error != ENOBUFS) 3279 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3280 "returned error %d\n", ic->ic_name, 3281 __func__, channels[i].hw_value, 3282 channels[i].center_freq, channels[i].flags, 3283 nflags, chan_flags, cflags, error); 3284 if (error != 0) 3285 break; 3286 } 3287 } 3288 } 3289 3290 static void * 3291 lkpi_ieee80211_ifalloc(void) 3292 { 3293 struct ieee80211com *ic; 3294 3295 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3296 if (ic == NULL) 3297 return (NULL); 3298 3299 /* Setting these happens later when we have device information. */ 3300 ic->ic_softc = NULL; 3301 ic->ic_name = "linuxkpi"; 3302 3303 return (ic); 3304 } 3305 3306 struct ieee80211_hw * 3307 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3308 { 3309 struct ieee80211_hw *hw; 3310 struct lkpi_hw *lhw; 3311 struct wiphy *wiphy; 3312 3313 /* Get us and the driver data also allocated. */ 3314 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3315 if (wiphy == NULL) 3316 return (NULL); 3317 3318 lhw = wiphy_priv(wiphy); 3319 lhw->ops = ops; 3320 3321 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3322 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3323 TAILQ_INIT(&lhw->lvif_head); 3324 3325 /* 3326 * XXX-BZ TODO make sure there is a "_null" function to all ops 3327 * not initialized. 3328 */ 3329 hw = LHW_TO_HW(lhw); 3330 hw->wiphy = wiphy; 3331 hw->conf.flags |= IEEE80211_CONF_IDLE; 3332 hw->priv = (void *)(lhw + 1); 3333 3334 /* BSD Specific. */ 3335 lhw->ic = lkpi_ieee80211_ifalloc(); 3336 if (lhw->ic == NULL) { 3337 ieee80211_free_hw(hw); 3338 return (NULL); 3339 } 3340 3341 IMPROVE(); 3342 3343 return (hw); 3344 } 3345 3346 void 3347 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3348 { 3349 struct lkpi_hw *lhw; 3350 3351 lhw = HW_TO_LHW(hw); 3352 free(lhw->ic, M_LKPI80211); 3353 lhw->ic = NULL; 3354 3355 /* Cleanup more of lhw here or in wiphy_free()? */ 3356 sx_destroy(&lhw->lvif_sx); 3357 mtx_destroy(&lhw->mtx); 3358 IMPROVE(); 3359 } 3360 3361 void 3362 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3363 { 3364 struct lkpi_hw *lhw; 3365 struct ieee80211com *ic; 3366 3367 lhw = HW_TO_LHW(hw); 3368 ic = lhw->ic; 3369 3370 /* Now set a proper name before ieee80211_ifattach(). */ 3371 ic->ic_softc = lhw; 3372 ic->ic_name = name; 3373 3374 /* XXX-BZ do we also need to set wiphy name? */ 3375 } 3376 3377 struct ieee80211_hw * 3378 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3379 { 3380 struct lkpi_hw *lhw; 3381 3382 lhw = wiphy_priv(wiphy); 3383 return (LHW_TO_HW(lhw)); 3384 } 3385 3386 static void 3387 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3388 { 3389 struct ieee80211com *ic; 3390 3391 ic = lhw->ic; 3392 ieee80211_radiotap_attach(ic, 3393 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3394 LKPI_RTAP_TX_FLAGS_PRESENT, 3395 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3396 LKPI_RTAP_RX_FLAGS_PRESENT); 3397 } 3398 3399 int 3400 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3401 { 3402 struct ieee80211com *ic; 3403 struct lkpi_hw *lhw; 3404 int band, i; 3405 3406 lhw = HW_TO_LHW(hw); 3407 ic = lhw->ic; 3408 3409 /* We do it this late as wiphy->dev should be set for the name. */ 3410 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3411 if (lhw->workq == NULL) 3412 return (-EAGAIN); 3413 3414 /* XXX-BZ figure this out how they count his... */ 3415 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3416 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3417 hw->wiphy->perm_addr); 3418 } else if (hw->wiphy->n_addresses > 0) { 3419 /* We take the first one. */ 3420 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3421 hw->wiphy->addresses[0].addr); 3422 } else { 3423 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3424 } 3425 3426 #ifdef __not_yet__ 3427 /* See comment in lkpi_80211_txq_tx_one(). */ 3428 ic->ic_headroom = hw->extra_tx_headroom; 3429 #endif 3430 3431 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3432 ic->ic_opmode = IEEE80211_M_STA; 3433 3434 /* Set device capabilities. */ 3435 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3436 ic->ic_caps = 3437 IEEE80211_C_STA | 3438 IEEE80211_C_MONITOR | 3439 IEEE80211_C_WPA | /* WPA/RSN */ 3440 IEEE80211_C_WME | 3441 #if 0 3442 IEEE80211_C_PMGT | 3443 #endif 3444 IEEE80211_C_SHSLOT | /* short slot time supported */ 3445 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3446 ; 3447 #if 0 3448 /* Scanning is a different kind of beast to re-work. */ 3449 ic->ic_caps |= IEEE80211_C_BGSCAN; 3450 #endif 3451 if (lhw->ops->hw_scan) { 3452 /* 3453 * Advertise full-offload scanning. 3454 * 3455 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3456 * we essentially disable hw_scan for all drivers not setting 3457 * the flag. 3458 */ 3459 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3460 } 3461 3462 #ifdef __notyet__ 3463 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3464 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3465 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3466 | IEEE80211_HTCAP_MAXAMSDU_3839 3467 /* max A-MSDU length */ 3468 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3469 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3470 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3471 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3472 #endif 3473 3474 ic->ic_cryptocaps = 0; 3475 #ifdef TRY_HW_CRYPTO 3476 if (hw->wiphy->n_cipher_suites > 0) { 3477 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3478 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3479 hw->wiphy->cipher_suites[i]); 3480 } 3481 #endif 3482 3483 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3484 ic->ic_channels); 3485 3486 ieee80211_ifattach(ic); 3487 3488 ic->ic_update_mcast = lkpi_ic_update_mcast; 3489 ic->ic_update_promisc = lkpi_ic_update_promisc; 3490 ic->ic_update_chw = lkpi_ic_update_chw; 3491 ic->ic_parent = lkpi_ic_parent; 3492 ic->ic_scan_start = lkpi_ic_scan_start; 3493 ic->ic_scan_end = lkpi_ic_scan_end; 3494 ic->ic_set_channel = lkpi_ic_set_channel; 3495 ic->ic_transmit = lkpi_ic_transmit; 3496 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3497 ic->ic_vap_create = lkpi_ic_vap_create; 3498 ic->ic_vap_delete = lkpi_ic_vap_delete; 3499 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3500 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3501 3502 lhw->ic_node_alloc = ic->ic_node_alloc; 3503 ic->ic_node_alloc = lkpi_ic_node_alloc; 3504 lhw->ic_node_init = ic->ic_node_init; 3505 ic->ic_node_init = lkpi_ic_node_init; 3506 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3507 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3508 lhw->ic_node_free = ic->ic_node_free; 3509 ic->ic_node_free = lkpi_ic_node_free; 3510 3511 lkpi_radiotap_attach(lhw); 3512 3513 /* 3514 * Assign the first possible channel for now; seems Realtek drivers 3515 * expect one. 3516 * Also remember the amount of bands we support and the most rates 3517 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3518 */ 3519 lhw->supbands = lhw->max_rates = 0; 3520 for (band = 0; band < NUM_NL80211_BANDS && 3521 hw->conf.chandef.chan == NULL; band++) { 3522 struct ieee80211_supported_band *supband; 3523 struct linuxkpi_ieee80211_channel *channels; 3524 3525 supband = hw->wiphy->bands[band]; 3526 if (supband == NULL || supband->n_channels == 0) 3527 continue; 3528 3529 lhw->supbands++; 3530 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3531 3532 channels = supband->channels; 3533 for (i = 0; i < supband->n_channels; i++) { 3534 3535 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3536 continue; 3537 3538 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3539 NL80211_CHAN_NO_HT); 3540 break; 3541 } 3542 } 3543 3544 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3545 3546 /* Make sure we do not support more than net80211 is willing to take. */ 3547 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3548 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3549 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3550 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3551 } 3552 3553 /* 3554 * The maximum supported bitrates on any band + size for 3555 * DSSS Parameter Set give our per-band IE size. 3556 * XXX-BZ FIXME add HT VHT ... later 3557 * SSID is the responsibility of the driver and goes on the side. 3558 * The user specified bits coming from the vap go into the 3559 * "common ies" fields. 3560 */ 3561 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3562 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3563 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3564 /* 3565 * net80211 does not seem to support the DSSS Parameter Set but some of 3566 * the drivers insert it so calculate the extra fixed space in. 3567 */ 3568 lhw->scan_ie_len += 2 + 1; 3569 3570 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3571 if (hw->wiphy->max_scan_ie_len > 0) 3572 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3573 3574 if (bootverbose) 3575 ieee80211_announce(ic); 3576 3577 return (0); 3578 } 3579 3580 void 3581 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3582 { 3583 struct lkpi_hw *lhw; 3584 struct ieee80211com *ic; 3585 3586 lhw = HW_TO_LHW(hw); 3587 ic = lhw->ic; 3588 ieee80211_ifdetach(ic); 3589 } 3590 3591 void 3592 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3593 enum ieee80211_iface_iter flags, 3594 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3595 void *arg) 3596 { 3597 struct lkpi_hw *lhw; 3598 struct lkpi_vif *lvif; 3599 struct ieee80211_vif *vif; 3600 bool active, atomic, nin_drv; 3601 3602 lhw = HW_TO_LHW(hw); 3603 3604 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3605 IEEE80211_IFACE_ITER_RESUME_ALL| 3606 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3607 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3608 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3609 __func__, flags); 3610 } 3611 3612 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3613 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3614 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3615 3616 if (atomic) 3617 LKPI_80211_LHW_LVIF_LOCK(lhw); 3618 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3619 struct ieee80211vap *vap; 3620 3621 vif = LVIF_TO_VIF(lvif); 3622 3623 /* 3624 * If we want "active" interfaces, we need to distinguish on 3625 * whether the driver knows about them or not to be able to 3626 * handle the "resume" case correctly. Skip the ones the 3627 * driver does not know about. 3628 */ 3629 if (active && !lvif->added_to_drv && 3630 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3631 continue; 3632 3633 /* 3634 * If we shall skip interfaces not added to the driver do so 3635 * if we haven't yet. 3636 */ 3637 if (nin_drv && !lvif->added_to_drv) 3638 continue; 3639 3640 /* 3641 * Run the iterator function if we are either not asking 3642 * asking for active only or if the VAP is "running". 3643 */ 3644 /* XXX-BZ probably should have state in the lvif as well. */ 3645 vap = LVIF_TO_VAP(lvif); 3646 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3647 iterfunc(arg, vif->addr, vif); 3648 } 3649 if (atomic) 3650 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3651 } 3652 3653 void 3654 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3655 struct ieee80211_vif *vif, 3656 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3657 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3658 void *arg) 3659 { 3660 3661 UNIMPLEMENTED; 3662 } 3663 3664 void 3665 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3666 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3667 void *), 3668 void *arg) 3669 { 3670 3671 UNIMPLEMENTED; 3672 } 3673 3674 void 3675 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3676 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3677 { 3678 struct lkpi_hw *lhw; 3679 struct lkpi_vif *lvif; 3680 struct lkpi_sta *lsta; 3681 struct ieee80211_sta *sta; 3682 3683 KASSERT(hw != NULL && iterfunc != NULL, 3684 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3685 3686 lhw = HW_TO_LHW(hw); 3687 3688 LKPI_80211_LHW_LVIF_LOCK(lhw); 3689 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3690 3691 LKPI_80211_LVIF_LOCK(lvif); 3692 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3693 if (!lsta->added_to_drv) 3694 continue; 3695 sta = LSTA_TO_STA(lsta); 3696 iterfunc(arg, sta); 3697 } 3698 LKPI_80211_LVIF_UNLOCK(lvif); 3699 } 3700 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3701 } 3702 3703 int 3704 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3705 struct linuxkpi_ieee80211_regdomain *regd) 3706 { 3707 struct lkpi_hw *lhw; 3708 struct ieee80211com *ic; 3709 struct ieee80211_regdomain *rd; 3710 3711 lhw = wiphy_priv(wiphy); 3712 ic = lhw->ic; 3713 3714 rd = &ic->ic_regdomain; 3715 if (rd->isocc[0] == '\0') { 3716 rd->isocc[0] = regd->alpha2[0]; 3717 rd->isocc[1] = regd->alpha2[1]; 3718 } 3719 3720 TODO(); 3721 /* XXX-BZ finish the rest. */ 3722 3723 return (0); 3724 } 3725 3726 void 3727 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3728 struct cfg80211_scan_info *info) 3729 { 3730 struct lkpi_hw *lhw; 3731 struct ieee80211com *ic; 3732 struct ieee80211_scan_state *ss; 3733 3734 lhw = wiphy_priv(hw->wiphy); 3735 ic = lhw->ic; 3736 ss = ic->ic_scan; 3737 3738 ieee80211_scan_done(ss->ss_vap); 3739 3740 LKPI_80211_LHW_LOCK(lhw); 3741 free(lhw->hw_req, M_LKPI80211); 3742 lhw->hw_req = NULL; 3743 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3744 wakeup(lhw); 3745 LKPI_80211_LHW_UNLOCK(lhw); 3746 3747 return; 3748 } 3749 3750 void 3751 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3752 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3753 { 3754 struct epoch_tracker et; 3755 struct lkpi_hw *lhw; 3756 struct ieee80211com *ic; 3757 struct mbuf *m; 3758 struct skb_shared_info *shinfo; 3759 struct ieee80211_rx_status *rx_status; 3760 struct ieee80211_rx_stats rx_stats; 3761 struct ieee80211_node *ni; 3762 struct ieee80211vap *vap; 3763 struct ieee80211_hdr *hdr; 3764 struct lkpi_sta *lsta; 3765 int i, offset, ok; 3766 int8_t rssi; 3767 bool is_beacon; 3768 3769 if (skb->len < 2) { 3770 /* Need 80211 stats here. */ 3771 IMPROVE(); 3772 goto err; 3773 } 3774 3775 /* 3776 * For now do the data copy; we can later improve things. Might even 3777 * have an mbuf backing the skb data then? 3778 */ 3779 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3780 if (m == NULL) 3781 goto err; 3782 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3783 3784 shinfo = skb_shinfo(skb); 3785 offset = m->m_len; 3786 for (i = 0; i < shinfo->nr_frags; i++) { 3787 m_copyback(m, offset, shinfo->frags[i].size, 3788 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3789 shinfo->frags[i].offset); 3790 offset += shinfo->frags[i].size; 3791 } 3792 3793 rx_status = IEEE80211_SKB_RXCB(skb); 3794 3795 hdr = (void *)skb->data; 3796 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3797 3798 #ifdef LINUXKPI_DEBUG_80211 3799 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3800 goto no_trace_beacons; 3801 3802 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3803 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3804 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3805 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3806 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3807 shinfo, shinfo->nr_frags, 3808 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3809 3810 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3811 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3812 3813 /* Implement a dump_rxcb() !!! */ 3814 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3815 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3816 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3817 __func__, 3818 (uintmax_t)rx_status->boottime_ns, 3819 (uintmax_t)rx_status->mactime, 3820 rx_status->device_timestamp, 3821 rx_status->flag, 3822 rx_status->freq, 3823 rx_status->bw, 3824 rx_status->encoding, 3825 rx_status->ampdu_reference, 3826 rx_status->band, 3827 rx_status->chains, 3828 rx_status->chain_signal[0], 3829 rx_status->chain_signal[1], 3830 rx_status->chain_signal[2], 3831 rx_status->chain_signal[3], 3832 rx_status->signal, 3833 rx_status->enc_flags, 3834 rx_status->he_dcm, 3835 rx_status->he_gi, 3836 rx_status->he_ru, 3837 rx_status->zero_length_psdu_type, 3838 rx_status->nss, 3839 rx_status->rate_idx); 3840 no_trace_beacons: 3841 #endif 3842 3843 memset(&rx_stats, 0, sizeof(rx_stats)); 3844 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3845 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3846 rx_stats.c_nf = -96; 3847 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3848 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3849 rssi = rx_status->signal; 3850 else 3851 rssi = rx_stats.c_nf; 3852 /* 3853 * net80211 signal strength data are in .5 dBm units relative to 3854 * the current noise floor (see comment in ieee80211_node.h). 3855 */ 3856 rssi -= rx_stats.c_nf; 3857 rx_stats.c_rssi = rssi * 2; 3858 rx_stats.r_flags |= IEEE80211_R_BAND; 3859 rx_stats.c_band = 3860 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3861 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3862 rx_stats.c_freq = rx_status->freq; 3863 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3864 3865 /* XXX (*sta_statistics)() to get to some of that? */ 3866 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3867 3868 lhw = HW_TO_LHW(hw); 3869 ic = lhw->ic; 3870 3871 ok = ieee80211_add_rx_params(m, &rx_stats); 3872 if (ok == 0) { 3873 counter_u64_add(ic->ic_ierrors, 1); 3874 goto err; 3875 } 3876 3877 if (sta != NULL) { 3878 lsta = STA_TO_LSTA(sta); 3879 ni = ieee80211_ref_node(lsta->ni); 3880 } else { 3881 struct ieee80211_frame_min *wh; 3882 3883 wh = mtod(m, struct ieee80211_frame_min *); 3884 ni = ieee80211_find_rxnode(ic, wh); 3885 if (ni != NULL) 3886 lsta = ni->ni_drv_data; 3887 } 3888 3889 if (ni != NULL) 3890 vap = ni->ni_vap; 3891 else 3892 /* 3893 * XXX-BZ can we improve this by looking at the frame hdr 3894 * or other meta-data passed up? 3895 */ 3896 vap = TAILQ_FIRST(&ic->ic_vaps); 3897 3898 #ifdef LINUXKPI_DEBUG_80211 3899 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3900 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3901 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3902 ni, vap, is_beacon ? " beacon" : ""); 3903 #endif 3904 3905 if (ni != NULL && vap != NULL && is_beacon && 3906 rx_status->device_timestamp > 0 && 3907 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3908 struct lkpi_vif *lvif; 3909 struct ieee80211_vif *vif; 3910 struct ieee80211_frame *wh; 3911 3912 wh = mtod(m, struct ieee80211_frame *); 3913 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3914 goto skip_device_ts; 3915 3916 lvif = VAP_TO_LVIF(vap); 3917 vif = LVIF_TO_VIF(lvif); 3918 3919 IMPROVE("TIMING_BEACON_ONLY?"); 3920 /* mac80211 specific (not net80211) so keep it here. */ 3921 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3922 /* 3923 * net80211 should take care of the other information (sync_tsf, 3924 * sync_dtim_count) as otherwise we need to parse the beacon. 3925 */ 3926 } 3927 skip_device_ts: 3928 3929 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3930 ieee80211_radiotap_active_vap(vap)) { 3931 struct lkpi_radiotap_rx_hdr *rtap; 3932 3933 rtap = &lhw->rtap_rx; 3934 rtap->wr_tsft = rx_status->device_timestamp; 3935 rtap->wr_flags = 0; 3936 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3937 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3938 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3939 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3940 #if 0 /* .. or it does not given we strip it below. */ 3941 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3942 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3943 #endif 3944 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3945 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3946 rtap->wr_rate = 0; 3947 IMPROVE(); 3948 /* XXX TODO status->encoding / rate_index / bw */ 3949 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3950 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3951 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3952 rtap->wr_dbm_antsignal = rssi; 3953 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3954 } 3955 3956 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3957 m_adj(m, -IEEE80211_CRC_LEN); 3958 3959 NET_EPOCH_ENTER(et); 3960 if (ni != NULL) { 3961 ok = ieee80211_input_mimo(ni, m); 3962 ieee80211_free_node(ni); 3963 } else { 3964 ok = ieee80211_input_mimo_all(ic, m); 3965 } 3966 NET_EPOCH_EXIT(et); 3967 3968 #ifdef LINUXKPI_DEBUG_80211 3969 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3970 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3971 #endif 3972 3973 IMPROVE(); 3974 3975 err: 3976 /* The skb is ours so we can free it :-) */ 3977 kfree_skb(skb); 3978 } 3979 3980 uint8_t 3981 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3982 { 3983 const struct ieee80211_frame *wh; 3984 3985 wh = (const struct ieee80211_frame *)hdr; 3986 return (ieee80211_gettid(wh)); 3987 } 3988 3989 struct wiphy * 3990 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3991 { 3992 struct lkpi_wiphy *lwiphy; 3993 3994 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3995 if (lwiphy == NULL) 3996 return (NULL); 3997 lwiphy->ops = ops; 3998 3999 /* XXX TODO */ 4000 return (LWIPHY_TO_WIPHY(lwiphy)); 4001 } 4002 4003 void 4004 linuxkpi_wiphy_free(struct wiphy *wiphy) 4005 { 4006 struct lkpi_wiphy *lwiphy; 4007 4008 if (wiphy == NULL) 4009 return; 4010 4011 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4012 kfree(lwiphy); 4013 } 4014 4015 uint32_t 4016 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4017 enum nl80211_band band) 4018 { 4019 4020 switch (band) { 4021 case NL80211_BAND_2GHZ: 4022 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4023 break; 4024 case NL80211_BAND_5GHZ: 4025 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4026 break; 4027 default: 4028 /* XXX abort, retry, error, panic? */ 4029 break; 4030 } 4031 4032 return (0); 4033 } 4034 4035 uint32_t 4036 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4037 { 4038 4039 return (ieee80211_mhz2ieee(freq, 0)); 4040 } 4041 4042 static struct lkpi_sta * 4043 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4044 { 4045 struct lkpi_sta *lsta, *temp; 4046 4047 LKPI_80211_LVIF_LOCK(lvif); 4048 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4049 if (lsta->ni == ni) { 4050 LKPI_80211_LVIF_UNLOCK(lvif); 4051 return (lsta); 4052 } 4053 } 4054 LKPI_80211_LVIF_UNLOCK(lvif); 4055 4056 return (NULL); 4057 } 4058 4059 struct ieee80211_sta * 4060 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4061 { 4062 struct lkpi_vif *lvif; 4063 struct lkpi_sta *lsta, *temp; 4064 struct ieee80211_sta *sta; 4065 4066 lvif = VIF_TO_LVIF(vif); 4067 4068 LKPI_80211_LVIF_LOCK(lvif); 4069 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4070 sta = LSTA_TO_STA(lsta); 4071 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4072 LKPI_80211_LVIF_UNLOCK(lvif); 4073 return (sta); 4074 } 4075 } 4076 LKPI_80211_LVIF_UNLOCK(lvif); 4077 return (NULL); 4078 } 4079 4080 struct ieee80211_sta * 4081 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4082 const uint8_t *addr, const uint8_t *ourvifaddr) 4083 { 4084 struct lkpi_hw *lhw; 4085 struct lkpi_vif *lvif; 4086 struct lkpi_sta *lsta; 4087 struct ieee80211_vif *vif; 4088 struct ieee80211_sta *sta; 4089 4090 lhw = wiphy_priv(hw->wiphy); 4091 sta = NULL; 4092 4093 LKPI_80211_LHW_LVIF_LOCK(lhw); 4094 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4095 4096 /* XXX-BZ check our address from the vif. */ 4097 4098 vif = LVIF_TO_VIF(lvif); 4099 if (ourvifaddr != NULL && 4100 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4101 continue; 4102 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4103 if (sta != NULL) 4104 break; 4105 } 4106 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4107 4108 if (sta != NULL) { 4109 lsta = STA_TO_LSTA(sta); 4110 if (!lsta->added_to_drv) 4111 return (NULL); 4112 } 4113 4114 return (sta); 4115 } 4116 4117 struct sk_buff * 4118 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4119 struct ieee80211_txq *txq) 4120 { 4121 struct lkpi_txq *ltxq; 4122 struct sk_buff *skb; 4123 4124 ltxq = TXQ_TO_LTXQ(txq); 4125 ltxq->seen_dequeue = true; 4126 4127 skb = skb_dequeue(<xq->skbq); 4128 4129 return (skb); 4130 } 4131 4132 void 4133 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4134 unsigned long *frame_cnt, unsigned long *byte_cnt) 4135 { 4136 struct lkpi_txq *ltxq; 4137 struct sk_buff *skb; 4138 unsigned long fc, bc; 4139 4140 ltxq = TXQ_TO_LTXQ(txq); 4141 4142 fc = bc = 0; 4143 skb_queue_walk(<xq->skbq, skb) { 4144 fc++; 4145 bc += skb->len; 4146 } 4147 if (frame_cnt) 4148 *frame_cnt = fc; 4149 if (byte_cnt) 4150 *byte_cnt = bc; 4151 4152 /* Validate that this is doing the correct thing. */ 4153 /* Should we keep track on en/dequeue? */ 4154 IMPROVE(); 4155 } 4156 4157 /* 4158 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4159 * The latter tries to derive the success status from the info flags 4160 * passed back from the driver. rawx_mit() saves the ni on the m and the 4161 * m on the skb for us to be able to give feedback to net80211. 4162 */ 4163 void 4164 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4165 int status) 4166 { 4167 struct ieee80211_node *ni; 4168 struct mbuf *m; 4169 4170 m = skb->m; 4171 skb->m = NULL; 4172 4173 if (m != NULL) { 4174 ni = m->m_pkthdr.PH_loc.ptr; 4175 /* Status: 0 is ok, != 0 is error. */ 4176 ieee80211_tx_complete(ni, m, status); 4177 /* ni & mbuf were consumed. */ 4178 } 4179 4180 kfree_skb(skb); 4181 } 4182 4183 void 4184 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4185 { 4186 struct ieee80211_tx_info *info; 4187 struct ieee80211_ratectl_tx_status txs; 4188 struct ieee80211_node *ni; 4189 int status; 4190 4191 info = IEEE80211_SKB_CB(skb); 4192 4193 if (skb->m != NULL) { 4194 struct mbuf *m; 4195 4196 m = skb->m; 4197 ni = m->m_pkthdr.PH_loc.ptr; 4198 memset(&txs, 0, sizeof(txs)); 4199 } else { 4200 ni = NULL; 4201 } 4202 4203 if (info->flags & IEEE80211_TX_STAT_ACK) { 4204 status = 0; /* No error. */ 4205 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4206 } else { 4207 status = 1; 4208 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4209 } 4210 4211 if (ni != NULL) { 4212 int ridx __unused; 4213 #ifdef LINUXKPI_DEBUG_80211 4214 int old_rate; 4215 4216 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4217 #endif 4218 txs.pktlen = skb->len; 4219 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4220 if (info->status.rates[0].count > 1) { 4221 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4222 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4223 } 4224 #if 0 /* Unused in net80211 currently. */ 4225 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4226 txs.final_rate = info->status.rates[0].idx; 4227 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4228 #endif 4229 if (info->status.is_valid_ack_signal) { 4230 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4231 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4232 } 4233 4234 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4235 ieee80211_ratectl_tx_complete(ni, &txs); 4236 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4237 4238 #ifdef LINUXKPI_DEBUG_80211 4239 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4240 printf("TX-RATE: %s: old %d new %d ridx %d, " 4241 "long_retries %d\n", __func__, 4242 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4243 ridx, txs.long_retries); 4244 } 4245 #endif 4246 } 4247 4248 #ifdef LINUXKPI_DEBUG_80211 4249 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4250 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4251 "band %u hw_queue %u tx_time_est %d : " 4252 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4253 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4254 "tx_time %u is_valid_ack_signal %u " 4255 "status_driver_data [ %p %p ]\n", 4256 __func__, hw, skb, status, info->flags, 4257 info->band, info->hw_queue, info->tx_time_est, 4258 info->status.rates[0].idx, info->status.rates[0].count, 4259 info->status.rates[0].flags, 4260 info->status.rates[1].idx, info->status.rates[1].count, 4261 info->status.rates[1].flags, 4262 info->status.rates[2].idx, info->status.rates[2].count, 4263 info->status.rates[2].flags, 4264 info->status.rates[3].idx, info->status.rates[3].count, 4265 info->status.rates[3].flags, 4266 info->status.ack_signal, info->status.ampdu_ack_len, 4267 info->status.ampdu_len, info->status.antenna, 4268 info->status.tx_time, info->status.is_valid_ack_signal, 4269 info->status.status_driver_data[0], 4270 info->status.status_driver_data[1]); 4271 #endif 4272 4273 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4274 } 4275 4276 /* 4277 * This is an internal bandaid for the moment for the way we glue 4278 * skbs and mbufs together for TX. Once we have skbs backed by 4279 * mbufs this should go away. 4280 * This is a public function but kept on the private KPI (lkpi_) 4281 * and is not exposed by a header file. 4282 */ 4283 static void 4284 lkpi_ieee80211_free_skb_mbuf(void *p) 4285 { 4286 struct ieee80211_node *ni; 4287 struct mbuf *m; 4288 4289 if (p == NULL) 4290 return; 4291 4292 m = (struct mbuf *)p; 4293 M_ASSERTPKTHDR(m); 4294 4295 ni = m->m_pkthdr.PH_loc.ptr; 4296 m->m_pkthdr.PH_loc.ptr = NULL; 4297 if (ni != NULL) 4298 ieee80211_free_node(ni); 4299 m_freem(m); 4300 } 4301 4302 void 4303 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4304 struct delayed_work *w, int delay) 4305 { 4306 struct lkpi_hw *lhw; 4307 4308 /* Need to make sure hw is in a stable (non-suspended) state. */ 4309 IMPROVE(); 4310 4311 lhw = HW_TO_LHW(hw); 4312 queue_delayed_work(lhw->workq, w, delay); 4313 } 4314 4315 void 4316 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4317 struct work_struct *w) 4318 { 4319 struct lkpi_hw *lhw; 4320 4321 /* Need to make sure hw is in a stable (non-suspended) state. */ 4322 IMPROVE(); 4323 4324 lhw = HW_TO_LHW(hw); 4325 queue_work(lhw->workq, w); 4326 } 4327 4328 struct sk_buff * 4329 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4330 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4331 { 4332 struct sk_buff *skb; 4333 struct ieee80211_frame *wh; 4334 uint8_t *p; 4335 size_t len; 4336 4337 len = sizeof(*wh); 4338 len += 2 + ssid_len; 4339 4340 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4341 if (skb == NULL) 4342 return (NULL); 4343 4344 skb_reserve(skb, hw->extra_tx_headroom); 4345 4346 wh = skb_put_zero(skb, sizeof(*wh)); 4347 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4348 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4349 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4350 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4351 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4352 4353 p = skb_put(skb, 2 + ssid_len); 4354 *p++ = IEEE80211_ELEMID_SSID; 4355 *p++ = ssid_len; 4356 if (ssid_len > 0) 4357 memcpy(p, ssid, ssid_len); 4358 4359 return (skb); 4360 } 4361 4362 struct sk_buff * 4363 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4364 struct ieee80211_vif *vif) 4365 { 4366 struct lkpi_vif *lvif; 4367 struct ieee80211vap *vap; 4368 struct sk_buff *skb; 4369 struct ieee80211_frame_pspoll *psp; 4370 uint16_t v; 4371 4372 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4373 if (skb == NULL) 4374 return (NULL); 4375 4376 skb_reserve(skb, hw->extra_tx_headroom); 4377 4378 lvif = VIF_TO_LVIF(vif); 4379 vap = LVIF_TO_VAP(lvif); 4380 4381 psp = skb_put_zero(skb, sizeof(*psp)); 4382 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4383 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4384 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4385 memcpy(&psp->i_aid, &v, sizeof(v)); 4386 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4387 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4388 4389 return (skb); 4390 } 4391 4392 struct sk_buff * 4393 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4394 struct ieee80211_vif *vif, bool qos) 4395 { 4396 struct lkpi_vif *lvif; 4397 struct ieee80211vap *vap; 4398 struct sk_buff *skb; 4399 struct ieee80211_frame *nullf; 4400 4401 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4402 if (skb == NULL) 4403 return (NULL); 4404 4405 skb_reserve(skb, hw->extra_tx_headroom); 4406 4407 lvif = VIF_TO_LVIF(vif); 4408 vap = LVIF_TO_VAP(lvif); 4409 4410 nullf = skb_put_zero(skb, sizeof(*nullf)); 4411 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4412 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4413 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4414 4415 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4416 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4417 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4418 4419 return (skb); 4420 } 4421 4422 struct wireless_dev * 4423 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4424 { 4425 struct lkpi_vif *lvif; 4426 4427 lvif = VIF_TO_LVIF(vif); 4428 return (&lvif->wdev); 4429 } 4430 4431 void 4432 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4433 { 4434 struct lkpi_vif *lvif; 4435 struct ieee80211vap *vap; 4436 enum ieee80211_state nstate; 4437 int arg; 4438 4439 lvif = VIF_TO_LVIF(vif); 4440 vap = LVIF_TO_VAP(lvif); 4441 4442 /* 4443 * Go to init; otherwise we need to elaborately check state and 4444 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4445 * Let the statemachine handle all neccessary changes. 4446 */ 4447 nstate = IEEE80211_S_INIT; 4448 arg = 0; /* Not a valid reason. */ 4449 4450 #ifdef LINUXKPI_DEBUG_80211 4451 if (linuxkpi_debug_80211 & D80211_TRACE) 4452 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4453 #endif 4454 ieee80211_new_state(vap, nstate, arg); 4455 } 4456 4457 void 4458 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4459 { 4460 struct lkpi_vif *lvif; 4461 struct ieee80211vap *vap; 4462 4463 lvif = VIF_TO_LVIF(vif); 4464 vap = LVIF_TO_VAP(lvif); 4465 4466 #ifdef LINUXKPI_DEBUG_80211 4467 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4468 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4469 vif, vap, ieee80211_state_name[vap->iv_state]); 4470 #endif 4471 ieee80211_beacon_miss(vap->iv_ic); 4472 } 4473 4474 MODULE_VERSION(linuxkpi_wlan, 1); 4475 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4476 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4477