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 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1594 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1595 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1596 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1597 if (error != 0) { 1598 IMPROVE("undo some changes?"); 1599 goto out; 1600 } 1601 1602 /* - drv_config (?) 1603 * - bss_info_changed 1604 * - set_rekey_data (?) 1605 * 1606 * And now we should be passing packets. 1607 */ 1608 IMPROVE("Need that bssid setting, and the keys"); 1609 1610 bss_changed = 0; 1611 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1612 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1613 1614 out: 1615 IEEE80211_LOCK(vap->iv_ic); 1616 if (ni != NULL) 1617 ieee80211_free_node(ni); 1618 return (error); 1619 } 1620 1621 static int 1622 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1623 { 1624 int error; 1625 1626 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1627 if (error == 0) 1628 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1629 return (error); 1630 } 1631 1632 static int 1633 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1634 { 1635 struct lkpi_hw *lhw; 1636 struct ieee80211_hw *hw; 1637 struct lkpi_vif *lvif; 1638 struct ieee80211_vif *vif; 1639 struct ieee80211_node *ni; 1640 struct lkpi_sta *lsta; 1641 struct ieee80211_sta *sta; 1642 struct ieee80211_prep_tx_info prep_tx_info; 1643 #if 0 1644 enum ieee80211_bss_changed bss_changed; 1645 #endif 1646 int error; 1647 1648 lhw = vap->iv_ic->ic_softc; 1649 hw = LHW_TO_HW(lhw); 1650 lvif = VAP_TO_LVIF(vap); 1651 vif = LVIF_TO_VIF(lvif); 1652 1653 /* Keep ni around. */ 1654 ni = ieee80211_ref_node(vap->iv_bss); 1655 lsta = ni->ni_drv_data; 1656 sta = LSTA_TO_STA(lsta); 1657 1658 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1659 1660 IEEE80211_UNLOCK(vap->iv_ic); 1661 1662 /* flush, drop. */ 1663 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1664 1665 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1666 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1667 !lsta->in_mgd) { 1668 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1669 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1670 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1671 lsta->in_mgd = true; 1672 } 1673 1674 IEEE80211_LOCK(vap->iv_ic); 1675 1676 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1677 error = lvif->iv_newstate(vap, nstate, arg); 1678 if (error != 0) 1679 goto outni; 1680 1681 IEEE80211_UNLOCK(vap->iv_ic); 1682 1683 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1684 1685 /* Wake tx queues to get packet(s) out. */ 1686 lkpi_wake_tx_queues(hw, sta, true, true); 1687 1688 /* flush, no drop */ 1689 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1690 1691 /* End mgd_complete_tx. */ 1692 if (lsta->in_mgd) { 1693 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1694 prep_tx_info.success = false; 1695 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1696 lsta->in_mgd = false; 1697 } 1698 1699 #if 0 1700 /* sync_rx_queues */ 1701 lkpi_80211_mo_sync_rx_queues(hw); 1702 1703 /* sta_pre_rcu_remove */ 1704 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1705 #endif 1706 1707 /* Take the station down. */ 1708 1709 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1710 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1711 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1712 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1713 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1714 if (error != 0) 1715 goto out; 1716 1717 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1718 1719 /* Update sta_state (ASSOC to AUTH). */ 1720 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1721 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1722 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1723 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1724 if (error != 0) 1725 goto out; 1726 1727 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1728 1729 #if 0 1730 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1731 lkpi_disassoc(sta, vif, lhw); 1732 #endif 1733 1734 error = EALREADY; 1735 out: 1736 IEEE80211_LOCK(vap->iv_ic); 1737 outni: 1738 if (ni != NULL) 1739 ieee80211_free_node(ni); 1740 return (error); 1741 } 1742 1743 static int 1744 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1745 { 1746 struct lkpi_hw *lhw; 1747 struct ieee80211_hw *hw; 1748 struct lkpi_vif *lvif; 1749 struct ieee80211_vif *vif; 1750 struct ieee80211_node *ni; 1751 struct lkpi_sta *lsta; 1752 struct ieee80211_sta *sta; 1753 struct ieee80211_prep_tx_info prep_tx_info; 1754 enum ieee80211_bss_changed bss_changed; 1755 int error; 1756 1757 lhw = vap->iv_ic->ic_softc; 1758 hw = LHW_TO_HW(lhw); 1759 lvif = VAP_TO_LVIF(vap); 1760 vif = LVIF_TO_VIF(lvif); 1761 1762 /* Keep ni around. */ 1763 ni = ieee80211_ref_node(vap->iv_bss); 1764 lsta = ni->ni_drv_data; 1765 sta = LSTA_TO_STA(lsta); 1766 1767 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1768 1769 IEEE80211_UNLOCK(vap->iv_ic); 1770 1771 /* flush, drop. */ 1772 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1773 1774 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1775 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1776 !lsta->in_mgd) { 1777 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1778 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1779 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1780 lsta->in_mgd = true; 1781 } 1782 1783 IEEE80211_LOCK(vap->iv_ic); 1784 1785 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1786 error = lvif->iv_newstate(vap, nstate, arg); 1787 if (error != 0) 1788 goto outni; 1789 1790 IEEE80211_UNLOCK(vap->iv_ic); 1791 1792 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1793 1794 /* Wake tx queues to get packet(s) out. */ 1795 lkpi_wake_tx_queues(hw, sta, true, true); 1796 1797 /* flush, no drop */ 1798 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1799 1800 /* End mgd_complete_tx. */ 1801 if (lsta->in_mgd) { 1802 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1803 prep_tx_info.success = false; 1804 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1805 lsta->in_mgd = false; 1806 } 1807 1808 /* sync_rx_queues */ 1809 lkpi_80211_mo_sync_rx_queues(hw); 1810 1811 /* sta_pre_rcu_remove */ 1812 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1813 1814 /* Take the station down. */ 1815 1816 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1817 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1818 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1819 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1820 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1821 if (error != 0) 1822 goto out; 1823 1824 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1825 1826 /* Update sta_state (ASSOC to AUTH). */ 1827 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1828 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1829 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1830 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1831 if (error != 0) 1832 goto out; 1833 1834 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1835 1836 /* Update sta and change state (from AUTH) to NONE. */ 1837 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1838 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1839 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1840 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1841 if (error != 0) 1842 goto out; 1843 1844 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1845 1846 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1847 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1848 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1849 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1850 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1851 if (error != 0) { 1852 IMPROVE("do we need to undo the chan ctx?"); 1853 goto out; 1854 } 1855 #if 0 1856 lsta->added_to_drv = false; /* mo manages. */ 1857 #endif 1858 1859 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1860 1861 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1862 /* 1863 * One would expect this to happen when going off AUTHORIZED. 1864 * See comment there; removes the sta from fw. 1865 */ 1866 lkpi_disassoc(sta, vif, lhw); 1867 1868 IMPROVE("Any bss_info changes to announce?"); 1869 bss_changed = 0; 1870 vif->bss_conf.qos = 0; 1871 bss_changed |= BSS_CHANGED_QOS; 1872 vif->bss_conf.ssid_len = 0; 1873 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1874 bss_changed |= BSS_CHANGED_BSSID; 1875 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1876 1877 lkpi_lsta_remove(lsta, lvif); 1878 1879 /* conf_tx */ 1880 1881 /* Take the chan ctx down. */ 1882 if (vif->chanctx_conf != NULL) { 1883 struct ieee80211_chanctx_conf *conf; 1884 1885 conf = vif->chanctx_conf; 1886 /* Remove vif context. */ 1887 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1888 /* NB: vif->chanctx_conf is NULL now. */ 1889 1890 /* Remove chan ctx. */ 1891 lkpi_80211_mo_remove_chanctx(hw, conf); 1892 free(conf, M_LKPI80211); 1893 } 1894 1895 error = EALREADY; 1896 out: 1897 IEEE80211_LOCK(vap->iv_ic); 1898 outni: 1899 if (ni != NULL) 1900 ieee80211_free_node(ni); 1901 return (error); 1902 } 1903 1904 static int 1905 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1906 { 1907 1908 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1909 } 1910 1911 static int 1912 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1913 { 1914 int error; 1915 1916 error = lkpi_sta_run_to_init(vap, nstate, arg); 1917 if (error != 0 && error != EALREADY) 1918 return (error); 1919 1920 /* At this point iv_bss is long a new node! */ 1921 1922 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1923 return (error); 1924 } 1925 1926 /* -------------------------------------------------------------------------- */ 1927 1928 /* 1929 * The matches the documented state changes in net80211::sta_newstate(). 1930 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1931 * there are "invalid" (so there is a room for failure here). 1932 */ 1933 struct fsm_state { 1934 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1935 enum ieee80211_state ostate; 1936 enum ieee80211_state nstate; 1937 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1938 } sta_state_fsm[] = { 1939 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1940 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1941 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1942 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1943 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1944 1945 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1946 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1947 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1948 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1949 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1950 1951 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1952 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1953 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1954 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1955 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1956 1957 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1958 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1959 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1960 1961 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1962 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1963 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1964 1965 /* Dummy at the end without handler. */ 1966 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1967 }; 1968 1969 static int 1970 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1971 { 1972 struct ieee80211com *ic; 1973 struct lkpi_hw *lhw; 1974 struct lkpi_vif *lvif; 1975 struct ieee80211_vif *vif; 1976 struct fsm_state *s; 1977 enum ieee80211_state ostate; 1978 int error; 1979 1980 ic = vap->iv_ic; 1981 IEEE80211_LOCK_ASSERT(ic); 1982 ostate = vap->iv_state; 1983 1984 #ifdef LINUXKPI_DEBUG_80211 1985 if (linuxkpi_debug_80211 & D80211_TRACE) 1986 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1987 __func__, __LINE__, vap, nstate, arg); 1988 #endif 1989 1990 if (vap->iv_opmode == IEEE80211_M_STA) { 1991 1992 lhw = ic->ic_softc; 1993 lvif = VAP_TO_LVIF(vap); 1994 vif = LVIF_TO_VIF(lvif); 1995 1996 /* No need to replicate this in most state handlers. */ 1997 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1998 lkpi_stop_hw_scan(lhw, vif); 1999 2000 s = sta_state_fsm; 2001 2002 } else { 2003 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2004 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2005 return (ENOSYS); 2006 } 2007 2008 error = 0; 2009 for (; s->handler != NULL; s++) { 2010 if (ostate == s->ostate && nstate == s->nstate) { 2011 #ifdef LINUXKPI_DEBUG_80211 2012 if (linuxkpi_debug_80211 & D80211_TRACE) 2013 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2014 " %d (%s): arg %d.\n", __func__, 2015 ostate, ieee80211_state_name[ostate], 2016 nstate, ieee80211_state_name[nstate], arg); 2017 #endif 2018 error = s->handler(vap, nstate, arg); 2019 break; 2020 } 2021 } 2022 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2023 2024 if (s->handler == NULL) { 2025 IMPROVE("turn this into a KASSERT\n"); 2026 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2027 "%d (%s) -> %d (%s)\n", __func__, 2028 ostate, ieee80211_state_name[ostate], 2029 nstate, ieee80211_state_name[nstate]); 2030 return (ENOSYS); 2031 } 2032 2033 if (error == EALREADY) { 2034 #ifdef LINUXKPI_DEBUG_80211 2035 if (linuxkpi_debug_80211 & D80211_TRACE) 2036 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2037 "%d (%s): iv_newstate already handled: %d.\n", 2038 __func__, ostate, ieee80211_state_name[ostate], 2039 nstate, ieee80211_state_name[nstate], error); 2040 #endif 2041 return (0); 2042 } 2043 2044 if (error != 0) { 2045 /* XXX-BZ currently expected so ignore. */ 2046 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2047 "%d (%s) -> %d (%s)\n", __func__, error, 2048 ostate, ieee80211_state_name[ostate], 2049 nstate, ieee80211_state_name[nstate]); 2050 /* return (error); */ 2051 } 2052 2053 #ifdef LINUXKPI_DEBUG_80211 2054 if (linuxkpi_debug_80211 & D80211_TRACE) 2055 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2056 "calling net80211 parent\n", 2057 __func__, __LINE__, vap, nstate, arg); 2058 #endif 2059 2060 return (lvif->iv_newstate(vap, nstate, arg)); 2061 } 2062 2063 /* -------------------------------------------------------------------------- */ 2064 2065 /* 2066 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2067 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2068 * new node without us knowing and thus our ni/lsta are out of sync. 2069 */ 2070 static struct ieee80211_node * 2071 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2072 { 2073 struct lkpi_vif *lvif; 2074 struct ieee80211_node *obss; 2075 struct lkpi_sta *lsta; 2076 2077 lvif = VAP_TO_LVIF(vap); 2078 obss = vap->iv_bss; 2079 2080 #ifdef LINUXKPI_DEBUG_80211 2081 if (linuxkpi_debug_80211 & D80211_TRACE) 2082 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2083 "ni %p ni_drv_data %p\n", __func__, 2084 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2085 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2086 #endif 2087 2088 /* Nothing to copy from. Just return. */ 2089 if (obss == NULL || obss->ni_drv_data == NULL) 2090 goto out; 2091 2092 /* Nothing to copy to. Just return. */ 2093 IMPROVE("clearing the obss might still be needed?"); 2094 if (ni == NULL) 2095 goto out; 2096 2097 /* Nothing changed? panic? */ 2098 if (obss == ni) 2099 goto out; 2100 2101 lsta = obss->ni_drv_data; 2102 obss->ni_drv_data = ni->ni_drv_data; 2103 ni->ni_drv_data = lsta; 2104 if (lsta != NULL) 2105 lsta->ni = ni; 2106 lsta = obss->ni_drv_data; 2107 if (lsta != NULL) 2108 lsta->ni = obss; 2109 2110 out: 2111 return (lvif->iv_update_bss(vap, ni)); 2112 } 2113 2114 static int 2115 lkpi_ic_wme_update(struct ieee80211com *ic) 2116 { 2117 /* This needs queuing and go at the right moment. */ 2118 #ifdef WITH_WME_UPDATE 2119 struct ieee80211vap *vap; 2120 struct lkpi_hw *lhw; 2121 struct ieee80211_hw *hw; 2122 struct lkpi_vif *lvif; 2123 struct ieee80211_vif *vif; 2124 struct chanAccParams chp; 2125 struct wmeParams wmeparr[WME_NUM_AC]; 2126 struct ieee80211_tx_queue_params txqp; 2127 enum ieee80211_bss_changed changed; 2128 int error; 2129 uint16_t ac; 2130 #endif 2131 2132 IMPROVE(); 2133 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2134 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2135 2136 #ifdef WITH_WME_UPDATE 2137 vap = TAILQ_FIRST(&ic->ic_vaps); 2138 if (vap == NULL) 2139 return (0); 2140 2141 /* We should factor this out into per-vap (*wme_update). */ 2142 lhw = ic->ic_softc; 2143 if (lhw->ops->conf_tx == NULL) 2144 return (0); 2145 2146 /* XXX-BZ check amount of hw queues */ 2147 hw = LHW_TO_HW(lhw); 2148 lvif = VAP_TO_LVIF(vap); 2149 vif = LVIF_TO_VIF(lvif); 2150 2151 ieee80211_wme_ic_getparams(ic, &chp); 2152 IEEE80211_LOCK(ic); 2153 for (ac = 0; ac < WME_NUM_AC; ac++) 2154 wmeparr[ac] = chp.cap_wmeParams[ac]; 2155 IEEE80211_UNLOCK(ic); 2156 2157 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2158 LKPI_80211_LHW_LOCK(lhw); 2159 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2160 struct wmeParams *wmep; 2161 2162 /* XXX-BZ should keep this in lvif? */ 2163 wmep = &wmeparr[ac]; 2164 bzero(&txqp, sizeof(txqp)); 2165 txqp.cw_min = wmep->wmep_logcwmin; 2166 txqp.cw_max = wmep->wmep_logcwmax; 2167 txqp.txop = wmep->wmep_txopLimit; 2168 txqp.aifs = wmep->wmep_aifsn; 2169 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2170 if (error != 0) 2171 printf("%s: conf_tx ac %u failed %d\n", 2172 __func__, ac, error); 2173 } 2174 LKPI_80211_LHW_UNLOCK(lhw); 2175 changed = BSS_CHANGED_QOS; 2176 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2177 #endif 2178 2179 return (0); 2180 } 2181 2182 static struct ieee80211vap * 2183 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2184 int unit, enum ieee80211_opmode opmode, int flags, 2185 const uint8_t bssid[IEEE80211_ADDR_LEN], 2186 const uint8_t mac[IEEE80211_ADDR_LEN]) 2187 { 2188 struct lkpi_hw *lhw; 2189 struct ieee80211_hw *hw; 2190 struct lkpi_vif *lvif; 2191 struct ieee80211vap *vap; 2192 struct ieee80211_vif *vif; 2193 enum ieee80211_bss_changed changed; 2194 size_t len; 2195 int error; 2196 2197 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2198 return (NULL); 2199 2200 lhw = ic->ic_softc; 2201 hw = LHW_TO_HW(lhw); 2202 2203 len = sizeof(*lvif); 2204 len += hw->vif_data_size; /* vif->drv_priv */ 2205 2206 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2207 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2208 TAILQ_INIT(&lvif->lsta_head); 2209 vap = LVIF_TO_VAP(lvif); 2210 2211 vif = LVIF_TO_VIF(lvif); 2212 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2213 vif->p2p = false; 2214 vif->probe_req_reg = false; 2215 vif->type = lkpi_opmode_to_vif_type(opmode); 2216 lvif->wdev.iftype = vif->type; 2217 /* Need to fill in other fields as well. */ 2218 IMPROVE(); 2219 2220 /* XXX-BZ hardcoded for now! */ 2221 #if 1 2222 vif->chanctx_conf = NULL; 2223 vif->bss_conf.idle = true; 2224 vif->bss_conf.ps = false; 2225 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2226 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2227 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2228 vif->bss_conf.qos = false; 2229 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2230 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2231 vif->bss_conf.assoc = false; 2232 vif->bss_conf.aid = 0; 2233 #endif 2234 #if 0 2235 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2236 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2237 vif->bss_conf.beacon_int = ic->ic_bintval; 2238 /* iwlwifi bug. */ 2239 if (vif->bss_conf.beacon_int < 16) 2240 vif->bss_conf.beacon_int = 16; 2241 #endif 2242 IMPROVE(); 2243 2244 error = lkpi_80211_mo_start(hw); 2245 if (error != 0) { 2246 printf("%s: failed to start hw: %d\n", __func__, error); 2247 mtx_destroy(&lvif->mtx); 2248 free(lvif, M_80211_VAP); 2249 return (NULL); 2250 } 2251 2252 error = lkpi_80211_mo_add_interface(hw, vif); 2253 if (error != 0) { 2254 IMPROVE(); /* XXX-BZ mo_stop()? */ 2255 printf("%s: failed to add interface: %d\n", __func__, error); 2256 mtx_destroy(&lvif->mtx); 2257 free(lvif, M_80211_VAP); 2258 return (NULL); 2259 } 2260 2261 LKPI_80211_LHW_LVIF_LOCK(lhw); 2262 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2263 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2264 2265 /* Set bss_info. */ 2266 changed = 0; 2267 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2268 2269 /* conf_tx setup; default WME? */ 2270 2271 /* Force MC init. */ 2272 lkpi_update_mcast_filter(ic, true); 2273 2274 IMPROVE(); 2275 2276 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2277 2278 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2279 lvif->iv_newstate = vap->iv_newstate; 2280 vap->iv_newstate = lkpi_iv_newstate; 2281 lvif->iv_update_bss = vap->iv_update_bss; 2282 vap->iv_update_bss = lkpi_iv_update_bss; 2283 2284 /* Key management. */ 2285 if (lhw->ops->set_key != NULL) { 2286 #ifdef TRY_HW_CRYPTO 2287 vap->iv_key_set = lkpi_iv_key_set; 2288 vap->iv_key_delete = lkpi_iv_key_delete; 2289 #endif 2290 } 2291 2292 ieee80211_ratectl_init(vap); 2293 2294 /* Complete setup. */ 2295 ieee80211_vap_attach(vap, ieee80211_media_change, 2296 ieee80211_media_status, mac); 2297 2298 if (hw->max_listen_interval == 0) 2299 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2300 hw->conf.listen_interval = hw->max_listen_interval; 2301 ic->ic_set_channel(ic); 2302 2303 /* XXX-BZ do we need to be able to update these? */ 2304 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2305 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2306 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2307 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2308 /* any others? */ 2309 IMPROVE(); 2310 2311 return (vap); 2312 } 2313 2314 static void 2315 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2316 { 2317 struct ieee80211com *ic; 2318 struct lkpi_hw *lhw; 2319 struct ieee80211_hw *hw; 2320 struct lkpi_vif *lvif; 2321 struct ieee80211_vif *vif; 2322 2323 lvif = VAP_TO_LVIF(vap); 2324 vif = LVIF_TO_VIF(lvif); 2325 ic = vap->iv_ic; 2326 lhw = ic->ic_softc; 2327 hw = LHW_TO_HW(lhw); 2328 2329 LKPI_80211_LHW_LVIF_LOCK(lhw); 2330 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2331 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2332 lkpi_80211_mo_remove_interface(hw, vif); 2333 2334 ieee80211_ratectl_deinit(vap); 2335 ieee80211_vap_detach(vap); 2336 mtx_destroy(&lvif->mtx); 2337 free(lvif, M_80211_VAP); 2338 } 2339 2340 static void 2341 lkpi_ic_update_mcast(struct ieee80211com *ic) 2342 { 2343 2344 lkpi_update_mcast_filter(ic, false); 2345 TRACEOK(); 2346 } 2347 2348 static void 2349 lkpi_ic_update_promisc(struct ieee80211com *ic) 2350 { 2351 2352 UNIMPLEMENTED; 2353 } 2354 2355 static void 2356 lkpi_ic_update_chw(struct ieee80211com *ic) 2357 { 2358 2359 UNIMPLEMENTED; 2360 } 2361 2362 /* Start / stop device. */ 2363 static void 2364 lkpi_ic_parent(struct ieee80211com *ic) 2365 { 2366 struct lkpi_hw *lhw; 2367 struct ieee80211_hw *hw; 2368 int error; 2369 bool start_all; 2370 2371 IMPROVE(); 2372 2373 lhw = ic->ic_softc; 2374 hw = LHW_TO_HW(lhw); 2375 start_all = false; 2376 2377 if (ic->ic_nrunning > 0) { 2378 error = lkpi_80211_mo_start(hw); 2379 if (error == 0) 2380 start_all = true; 2381 } else { 2382 lkpi_80211_mo_stop(hw); 2383 } 2384 2385 if (start_all) 2386 ieee80211_start_all(ic); 2387 } 2388 2389 bool 2390 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2391 size_t ie_ids_len) 2392 { 2393 int i; 2394 2395 for (i = 0; i < ie_ids_len; i++) { 2396 if (ie == *ie_ids) 2397 return (true); 2398 } 2399 2400 return (false); 2401 } 2402 2403 /* Return true if skipped; false if error. */ 2404 bool 2405 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2406 { 2407 size_t x; 2408 uint8_t l; 2409 2410 x = *xp; 2411 2412 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2413 __func__, x, ies_len, ies)); 2414 l = ies[x + 1]; 2415 x += 2 + l; 2416 2417 if (x > ies_len) 2418 return (false); 2419 2420 *xp = x; 2421 return (true); 2422 } 2423 2424 static uint8_t * 2425 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2426 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2427 { 2428 struct ieee80211_supported_band *supband; 2429 struct linuxkpi_ieee80211_channel *channels; 2430 const struct ieee80211_channel *chan; 2431 const struct ieee80211_rateset *rs; 2432 uint8_t *pb; 2433 int band, i; 2434 2435 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2436 if ((band_mask & (1 << band)) == 0) 2437 continue; 2438 2439 supband = hw->wiphy->bands[band]; 2440 /* 2441 * This should not happen; 2442 * band_mask is a bitmask of valid bands to scan on. 2443 */ 2444 if (supband == NULL || supband->n_channels == 0) 2445 continue; 2446 2447 /* Find a first channel to get the mode and rates from. */ 2448 channels = supband->channels; 2449 chan = NULL; 2450 for (i = 0; i < supband->n_channels; i++) { 2451 2452 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2453 continue; 2454 2455 chan = ieee80211_find_channel(vap->iv_ic, 2456 channels[i].center_freq, 0); 2457 if (chan != NULL) 2458 break; 2459 } 2460 2461 /* This really should not happen. */ 2462 if (chan == NULL) 2463 continue; 2464 2465 pb = p; 2466 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2467 p = ieee80211_add_rates(p, rs); 2468 p = ieee80211_add_xrates(p, rs); 2469 2470 scan_ies->ies[band] = pb; 2471 scan_ies->len[band] = p - pb; 2472 } 2473 2474 /* Add common_ies */ 2475 pb = p; 2476 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2477 vap->iv_wpa_ie != NULL) { 2478 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2479 p += 2 + vap->iv_wpa_ie[1]; 2480 } 2481 if (vap->iv_appie_probereq != NULL) { 2482 memcpy(p, vap->iv_appie_probereq->ie_data, 2483 vap->iv_appie_probereq->ie_len); 2484 p += vap->iv_appie_probereq->ie_len; 2485 } 2486 scan_ies->common_ies = pb; 2487 scan_ies->common_ie_len = p - pb; 2488 2489 return (p); 2490 } 2491 2492 static void 2493 lkpi_ic_scan_start(struct ieee80211com *ic) 2494 { 2495 struct lkpi_hw *lhw; 2496 struct ieee80211_hw *hw; 2497 struct lkpi_vif *lvif; 2498 struct ieee80211_vif *vif; 2499 struct ieee80211_scan_state *ss; 2500 struct ieee80211vap *vap; 2501 int error; 2502 2503 lhw = ic->ic_softc; 2504 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2505 /* A scan is still running. */ 2506 return; 2507 } 2508 2509 ss = ic->ic_scan; 2510 vap = ss->ss_vap; 2511 if (vap->iv_state != IEEE80211_S_SCAN) { 2512 IMPROVE("We need to be able to scan if not in S_SCAN"); 2513 return; 2514 } 2515 2516 hw = LHW_TO_HW(lhw); 2517 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2518 sw_scan: 2519 lvif = VAP_TO_LVIF(vap); 2520 vif = LVIF_TO_VIF(lvif); 2521 2522 if (vap->iv_state == IEEE80211_S_SCAN) 2523 lkpi_hw_conf_idle(hw, false); 2524 2525 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2526 /* net80211::scan_start() handled PS for us. */ 2527 IMPROVE(); 2528 /* XXX Also means it is too late to flush queues? 2529 * need to check iv_sta_ps or overload? */ 2530 /* XXX want to adjust ss end time/ maxdwell? */ 2531 2532 } else { 2533 struct ieee80211_channel *c; 2534 struct ieee80211_scan_request *hw_req; 2535 struct linuxkpi_ieee80211_channel *lc, **cpp; 2536 struct cfg80211_ssid *ssids; 2537 struct cfg80211_scan_6ghz_params *s6gp; 2538 size_t chan_len, nchan, ssids_len, s6ghzlen; 2539 int band, i, ssid_count, common_ie_len; 2540 uint32_t band_mask; 2541 uint8_t *ie, *ieend; 2542 2543 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2544 IMPROVE("individual band scans not yet supported"); 2545 /* In theory net80211 would have to drive this. */ 2546 return; 2547 } 2548 2549 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2550 ssids_len = ssid_count * sizeof(*ssids); 2551 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2552 2553 band_mask = 0; 2554 nchan = 0; 2555 for (i = ss->ss_next; i < ss->ss_last; i++) { 2556 nchan++; 2557 band = lkpi_net80211_chan_to_nl80211_band( 2558 ss->ss_chans[ss->ss_next + i]); 2559 band_mask |= (1 << band); 2560 } 2561 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2562 2563 common_ie_len = 0; 2564 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2565 vap->iv_wpa_ie != NULL) 2566 common_ie_len += vap->iv_wpa_ie[1]; 2567 if (vap->iv_appie_probereq != NULL) 2568 common_ie_len += vap->iv_appie_probereq->ie_len; 2569 2570 /* We would love to check this at an earlier stage... */ 2571 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2572 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2573 "wiphy->max_scan_ie_len %d\n", __func__, 2574 common_ie_len, hw->wiphy->max_scan_ie_len); 2575 } 2576 2577 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2578 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2579 2580 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2581 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2582 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2583 2584 hw_req->req.flags = 0; /* XXX ??? */ 2585 /* hw_req->req.wdev */ 2586 hw_req->req.wiphy = hw->wiphy; 2587 hw_req->req.no_cck = false; /* XXX */ 2588 #if 0 2589 /* This seems to pessimise default scanning behaviour. */ 2590 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2591 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2592 #endif 2593 #ifdef __notyet__ 2594 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2595 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2596 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2597 #endif 2598 2599 hw_req->req.n_channels = nchan; 2600 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2601 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2602 for (i = 0; i < nchan; i++) { 2603 *(cpp + i) = 2604 (struct linuxkpi_ieee80211_channel *)(lc + i); 2605 } 2606 for (i = 0; i < nchan; i++) { 2607 c = ss->ss_chans[ss->ss_next + i]; 2608 2609 lc->hw_value = c->ic_ieee; 2610 lc->center_freq = c->ic_freq; 2611 /* lc->flags */ 2612 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2613 lc->max_power = c->ic_maxpower; 2614 /* lc-> ... */ 2615 lc++; 2616 } 2617 2618 hw_req->req.n_ssids = ssid_count; 2619 if (hw_req->req.n_ssids > 0) { 2620 ssids = (struct cfg80211_ssid *)lc; 2621 hw_req->req.ssids = ssids; 2622 for (i = 0; i < ssid_count; i++) { 2623 ssids->ssid_len = ss->ss_ssid[i].len; 2624 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2625 ss->ss_ssid[i].len); 2626 ssids++; 2627 } 2628 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2629 } else { 2630 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2631 } 2632 2633 /* 6GHz one day. */ 2634 hw_req->req.n_6ghz_params = 0; 2635 hw_req->req.scan_6ghz_params = NULL; 2636 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2637 /* s6gp->... */ 2638 2639 ie = ieend = (uint8_t *)s6gp; 2640 /* Copy per-band IEs, copy common IEs */ 2641 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2642 hw_req->req.ie = ie; 2643 hw_req->req.ie_len = ieend - ie; 2644 2645 lvif = VAP_TO_LVIF(vap); 2646 vif = LVIF_TO_VIF(lvif); 2647 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2648 if (error != 0) { 2649 ieee80211_cancel_scan(vap); 2650 2651 free(hw_req, M_LKPI80211); 2652 lhw->hw_req = NULL; 2653 2654 /* 2655 * XXX-SIGH magic number. 2656 * rtw88 has a magic "return 1" if offloading scan is 2657 * not possible. Fall back to sw scan in that case. 2658 */ 2659 if (error == 1) { 2660 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2661 ieee80211_start_scan(vap, 2662 IEEE80211_SCAN_ACTIVE | 2663 IEEE80211_SCAN_NOPICK | 2664 IEEE80211_SCAN_ONCE, 2665 IEEE80211_SCAN_FOREVER, 2666 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2667 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2668 vap->iv_des_nssid, vap->iv_des_ssid); 2669 goto sw_scan; 2670 } 2671 2672 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2673 __func__, error); 2674 } 2675 } 2676 } 2677 2678 static void 2679 lkpi_ic_scan_end(struct ieee80211com *ic) 2680 { 2681 struct lkpi_hw *lhw; 2682 struct ieee80211_scan_state *ss; 2683 struct ieee80211vap *vap; 2684 2685 lhw = ic->ic_softc; 2686 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2687 return; 2688 } 2689 2690 ss = ic->ic_scan; 2691 vap = ss->ss_vap; 2692 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2693 /* Nothing to do. */ 2694 } else { 2695 struct ieee80211_hw *hw; 2696 struct lkpi_vif *lvif; 2697 struct ieee80211_vif *vif; 2698 2699 hw = LHW_TO_HW(lhw); 2700 lvif = VAP_TO_LVIF(vap); 2701 vif = LVIF_TO_VIF(lvif); 2702 lkpi_80211_mo_sw_scan_complete(hw, vif); 2703 2704 /* Send PS to stop buffering if n80211 does not for us? */ 2705 2706 if (vap->iv_state == IEEE80211_S_SCAN) 2707 lkpi_hw_conf_idle(hw, true); 2708 } 2709 } 2710 2711 static void 2712 lkpi_ic_set_channel(struct ieee80211com *ic) 2713 { 2714 struct lkpi_hw *lhw; 2715 struct ieee80211_hw *hw; 2716 struct ieee80211_channel *c; 2717 struct linuxkpi_ieee80211_channel *chan; 2718 int error; 2719 2720 lhw = ic->ic_softc; 2721 2722 /* If we do not support (*config)() save us the work. */ 2723 if (lhw->ops->config == NULL) 2724 return; 2725 2726 c = ic->ic_curchan; 2727 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2728 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2729 c, lhw->ops->config); 2730 return; 2731 } 2732 2733 chan = lkpi_find_lkpi80211_chan(lhw, c); 2734 if (chan == NULL) { 2735 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2736 c, chan); 2737 return; 2738 } 2739 2740 /* XXX max power for scanning? */ 2741 IMPROVE(); 2742 2743 hw = LHW_TO_HW(lhw); 2744 cfg80211_chandef_create(&hw->conf.chandef, chan, 2745 NL80211_CHAN_NO_HT); 2746 2747 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2748 if (error != 0 && error != EOPNOTSUPP) { 2749 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2750 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2751 /* XXX should we unroll to the previous chandef? */ 2752 IMPROVE(); 2753 } else { 2754 /* Update radiotap channels as well. */ 2755 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2756 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2757 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2758 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2759 } 2760 2761 /* Currently PS is hard coded off! Not sure it belongs here. */ 2762 IMPROVE(); 2763 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2764 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2765 hw->conf.flags &= ~IEEE80211_CONF_PS; 2766 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2767 if (error != 0 && error != EOPNOTSUPP) 2768 ic_printf(ic, "ERROR: %s: config %#0x returned " 2769 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2770 error); 2771 } 2772 } 2773 2774 static struct ieee80211_node * 2775 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2776 const uint8_t mac[IEEE80211_ADDR_LEN]) 2777 { 2778 struct ieee80211com *ic; 2779 struct lkpi_hw *lhw; 2780 struct ieee80211_node *ni; 2781 struct ieee80211_hw *hw; 2782 struct lkpi_sta *lsta; 2783 2784 ic = vap->iv_ic; 2785 lhw = ic->ic_softc; 2786 2787 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2788 if (lhw->ic_node_alloc == NULL) 2789 return (NULL); 2790 2791 ni = lhw->ic_node_alloc(vap, mac); 2792 if (ni == NULL) 2793 return (NULL); 2794 2795 hw = LHW_TO_HW(lhw); 2796 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2797 if (lsta == NULL) { 2798 if (lhw->ic_node_free != NULL) 2799 lhw->ic_node_free(ni); 2800 return (NULL); 2801 } 2802 2803 return (ni); 2804 } 2805 2806 static int 2807 lkpi_ic_node_init(struct ieee80211_node *ni) 2808 { 2809 struct ieee80211com *ic; 2810 struct lkpi_hw *lhw; 2811 struct lkpi_sta *lsta; 2812 struct lkpi_vif *lvif; 2813 int error; 2814 2815 ic = ni->ni_ic; 2816 lhw = ic->ic_softc; 2817 2818 if (lhw->ic_node_init != NULL) { 2819 error = lhw->ic_node_init(ni); 2820 if (error != 0) 2821 return (error); 2822 } 2823 2824 lvif = VAP_TO_LVIF(ni->ni_vap); 2825 2826 lsta = ni->ni_drv_data; 2827 2828 /* Now take the reference before linking it to the table. */ 2829 lsta->ni = ieee80211_ref_node(ni); 2830 2831 LKPI_80211_LVIF_LOCK(lvif); 2832 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2833 LKPI_80211_LVIF_UNLOCK(lvif); 2834 2835 /* XXX-BZ Sync other state over. */ 2836 IMPROVE(); 2837 2838 return (0); 2839 } 2840 2841 static void 2842 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2843 { 2844 struct ieee80211com *ic; 2845 struct lkpi_hw *lhw; 2846 2847 ic = ni->ni_ic; 2848 lhw = ic->ic_softc; 2849 2850 /* XXX-BZ remove from driver, ... */ 2851 IMPROVE(); 2852 2853 if (lhw->ic_node_cleanup != NULL) 2854 lhw->ic_node_cleanup(ni); 2855 } 2856 2857 static void 2858 lkpi_ic_node_free(struct ieee80211_node *ni) 2859 { 2860 struct ieee80211com *ic; 2861 struct lkpi_hw *lhw; 2862 struct lkpi_sta *lsta; 2863 2864 ic = ni->ni_ic; 2865 lhw = ic->ic_softc; 2866 lsta = ni->ni_drv_data; 2867 if (lsta == NULL) 2868 goto out; 2869 2870 /* XXX-BZ free resources, ... */ 2871 IMPROVE(); 2872 2873 /* Flush mbufq (make sure to release ni refs!). */ 2874 #ifdef __notyet__ 2875 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2876 __func__, lsta, mbufq_len(&lsta->txq))); 2877 #endif 2878 /* Drain taskq. */ 2879 2880 /* Drain sta->txq[] */ 2881 mtx_destroy(&lsta->txq_mtx); 2882 2883 /* Remove lsta if added_to_drv. */ 2884 /* Remove lsta from vif */ 2885 2886 /* remove ref from lsta node... */ 2887 2888 /* Free lsta. */ 2889 2890 out: 2891 if (lhw->ic_node_free != NULL) 2892 lhw->ic_node_free(ni); 2893 } 2894 2895 static int 2896 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2897 const struct ieee80211_bpf_params *params __unused) 2898 { 2899 struct lkpi_sta *lsta; 2900 2901 lsta = ni->ni_drv_data; 2902 2903 /* Queue the packet and enqueue the task to handle it. */ 2904 LKPI_80211_LSTA_LOCK(lsta); 2905 mbufq_enqueue(&lsta->txq, m); 2906 LKPI_80211_LSTA_UNLOCK(lsta); 2907 2908 #ifdef LINUXKPI_DEBUG_80211 2909 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2910 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2911 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2912 mbufq_len(&lsta->txq)); 2913 #endif 2914 2915 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2916 return (0); 2917 } 2918 2919 static void 2920 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2921 { 2922 struct ieee80211_node *ni; 2923 struct ieee80211_frame *wh; 2924 struct ieee80211_key *k; 2925 struct sk_buff *skb; 2926 struct ieee80211com *ic; 2927 struct lkpi_hw *lhw; 2928 struct ieee80211_hw *hw; 2929 struct lkpi_vif *lvif; 2930 struct ieee80211_vif *vif; 2931 struct ieee80211_channel *c; 2932 struct ieee80211_tx_control control; 2933 struct ieee80211_tx_info *info; 2934 struct ieee80211_sta *sta; 2935 void *buf; 2936 int ac; 2937 2938 M_ASSERTPKTHDR(m); 2939 #ifdef LINUXKPI_DEBUG_80211 2940 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2941 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2942 #endif 2943 2944 ni = lsta->ni; 2945 #ifndef TRY_HW_CRYPTO 2946 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2947 wh = mtod(m, struct ieee80211_frame *); 2948 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2949 /* Retrieve key for TX && do software encryption. */ 2950 k = ieee80211_crypto_encap(ni, m); 2951 if (k == NULL) { 2952 ieee80211_free_node(ni); 2953 m_freem(m); 2954 return; 2955 } 2956 } 2957 #endif 2958 2959 ic = ni->ni_ic; 2960 lhw = ic->ic_softc; 2961 hw = LHW_TO_HW(lhw); 2962 c = ni->ni_chan; 2963 2964 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2965 struct lkpi_radiotap_tx_hdr *rtap; 2966 2967 rtap = &lhw->rtap_tx; 2968 rtap->wt_flags = 0; 2969 if (k != NULL) 2970 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2971 if (m->m_flags & M_FRAG) 2972 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2973 IMPROVE(); 2974 rtap->wt_rate = 0; 2975 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2976 rtap->wt_chan_freq = htole16(c->ic_freq); 2977 rtap->wt_chan_flags = htole16(c->ic_flags); 2978 } 2979 2980 ieee80211_radiotap_tx(ni->ni_vap, m); 2981 } 2982 2983 /* 2984 * net80211 should handle hw->extra_tx_headroom. 2985 * Though for as long as we are copying we don't mind. 2986 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2987 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2988 */ 2989 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2990 if (skb == NULL) { 2991 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2992 ieee80211_free_node(ni); 2993 m_freem(m); 2994 return; 2995 } 2996 skb_reserve(skb, hw->extra_tx_headroom); 2997 2998 /* XXX-BZ we need a SKB version understanding mbuf. */ 2999 /* Save the mbuf for ieee80211_tx_complete(). */ 3000 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3001 skb->m = m; 3002 #if 0 3003 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3004 #else 3005 buf = skb_put(skb, m->m_pkthdr.len); 3006 m_copydata(m, 0, m->m_pkthdr.len, buf); 3007 #endif 3008 /* Save the ni. */ 3009 m->m_pkthdr.PH_loc.ptr = ni; 3010 3011 lvif = VAP_TO_LVIF(ni->ni_vap); 3012 vif = LVIF_TO_VIF(lvif); 3013 3014 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 3015 ac = M_WME_GETAC(m); 3016 skb->priority = WME_AC_TO_TID(ac); 3017 ac = lkpi_ac_net_to_l80211(ac); 3018 skb_set_queue_mapping(skb, ac); 3019 3020 info = IEEE80211_SKB_CB(skb); 3021 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3022 /* Slight delay; probably only happens on scanning so fine? */ 3023 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3024 c = ic->ic_curchan; 3025 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3026 info->hw_queue = ac; /* XXX-BZ is this correct? */ 3027 if (m->m_flags & M_EAPOL) 3028 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3029 info->control.vif = vif; 3030 /* XXX-BZ info->control.rates */ 3031 3032 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3033 if (lsta != NULL) { 3034 sta = LSTA_TO_STA(lsta); 3035 #ifdef TRY_HW_CRYPTO 3036 info->control.hw_key = lsta->kc; 3037 #endif 3038 } else { 3039 sta = NULL; 3040 } 3041 3042 IMPROVE(); 3043 3044 if (sta != NULL) { 3045 struct lkpi_txq *ltxq; 3046 3047 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 3048 /* 3049 * We currently do not use queues but do direct TX. 3050 * The exception to the rule is initial packets, as we cannot 3051 * TX until queues are allocated (at least for iwlwifi). 3052 * So we wake_tx_queue in newstate and register any dequeue 3053 * calls. In the time until then we queue packets and 3054 * let the driver deal with them. 3055 */ 3056 if (!ltxq->seen_dequeue) { 3057 3058 /* Prevent an ordering problem, likely other issues. */ 3059 while (!skb_queue_empty(<xq->skbq)) { 3060 struct sk_buff *skb2; 3061 3062 skb2 = skb_dequeue(<xq->skbq); 3063 if (skb2 != NULL) { 3064 memset(&control, 0, sizeof(control)); 3065 control.sta = sta; 3066 lkpi_80211_mo_tx(hw, &control, skb2); 3067 } 3068 } 3069 goto ops_tx; 3070 } 3071 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 3072 goto ops_tx; 3073 3074 skb_queue_tail(<xq->skbq, skb); 3075 #ifdef LINUXKPI_DEBUG_80211 3076 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3077 printf("%s:%d lsta %p sta %p ni %p %6D skb %p lxtq %p " 3078 "qlen %u WAKE_TX_Q ac %d prio %u qmap %u\n", 3079 __func__, __LINE__, lsta, sta, ni, 3080 ni->ni_macaddr, ":", skb, ltxq, 3081 skb_queue_len(<xq->skbq), ac, 3082 skb->priority, skb->qmap); 3083 #endif 3084 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[ac]); /* XXX-BZ */ 3085 return; 3086 } 3087 3088 ops_tx: 3089 #ifdef LINUXKPI_DEBUG_80211 3090 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3091 printf("%s:%d lsta %p sta %p ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 3092 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3093 skb, ac, skb->priority, skb->qmap); 3094 #endif 3095 memset(&control, 0, sizeof(control)); 3096 control.sta = sta; 3097 3098 lkpi_80211_mo_tx(hw, &control, skb); 3099 return; 3100 } 3101 3102 static void 3103 lkpi_80211_txq_task(void *ctx, int pending) 3104 { 3105 struct lkpi_sta *lsta; 3106 struct mbufq mq; 3107 struct mbuf *m; 3108 3109 lsta = ctx; 3110 3111 #ifdef LINUXKPI_DEBUG_80211 3112 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3113 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3114 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3115 pending, mbufq_len(&lsta->txq)); 3116 #endif 3117 3118 mbufq_init(&mq, IFQ_MAXLEN); 3119 3120 LKPI_80211_LSTA_LOCK(lsta); 3121 mbufq_concat(&mq, &lsta->txq); 3122 LKPI_80211_LSTA_UNLOCK(lsta); 3123 3124 m = mbufq_dequeue(&mq); 3125 while (m != NULL) { 3126 lkpi_80211_txq_tx_one(lsta, m); 3127 m = mbufq_dequeue(&mq); 3128 } 3129 } 3130 3131 static int 3132 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3133 { 3134 3135 /* XXX TODO */ 3136 IMPROVE(); 3137 3138 /* Quick and dirty cheating hack. */ 3139 struct ieee80211_node *ni; 3140 3141 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3142 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3143 } 3144 3145 static void 3146 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3147 int *n, struct ieee80211_channel *c) 3148 { 3149 struct lkpi_hw *lhw; 3150 struct ieee80211_hw *hw; 3151 struct linuxkpi_ieee80211_channel *channels; 3152 uint8_t bands[IEEE80211_MODE_BYTES]; 3153 int chan_flags, error, i, nchans; 3154 3155 /* Channels */ 3156 lhw = ic->ic_softc; 3157 hw = LHW_TO_HW(lhw); 3158 3159 /* NL80211_BAND_2GHZ */ 3160 nchans = 0; 3161 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3162 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3163 if (nchans > 0) { 3164 memset(bands, 0, sizeof(bands)); 3165 chan_flags = 0; 3166 setbit(bands, IEEE80211_MODE_11B); 3167 /* XXX-BZ unclear how to check for 11g. */ 3168 setbit(bands, IEEE80211_MODE_11G); 3169 #ifdef __notyet__ 3170 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3171 setbit(bands, IEEE80211_MODE_11NG); 3172 chan_flags |= NET80211_CBW_FLAG_HT40; 3173 } 3174 #endif 3175 3176 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3177 for (i = 0; i < nchans && *n < maxchan; i++) { 3178 uint32_t nflags = 0; 3179 int cflags = chan_flags; 3180 3181 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3182 printf("%s: %s: Skipping disabled chan " 3183 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3184 channels[i].hw_value, 3185 channels[i].center_freq, channels[i].flags); 3186 continue; 3187 } 3188 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3189 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3190 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3191 nflags |= IEEE80211_CHAN_DFS; 3192 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3193 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3194 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3195 cflags &= ~NET80211_CBW_FLAG_VHT80; 3196 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3197 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3198 cflags &= ~NET80211_CBW_FLAG_HT40; 3199 3200 error = ieee80211_add_channel_cbw(c, maxchan, n, 3201 channels[i].hw_value, channels[i].center_freq, 3202 channels[i].max_power, 3203 nflags, bands, chan_flags); 3204 /* net80211::ENOBUFS: *n >= maxchans */ 3205 if (error != 0 && error != ENOBUFS) 3206 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3207 "returned error %d\n", ic->ic_name, 3208 __func__, channels[i].hw_value, 3209 channels[i].center_freq, channels[i].flags, 3210 nflags, chan_flags, cflags, error); 3211 if (error != 0) 3212 break; 3213 } 3214 } 3215 3216 /* NL80211_BAND_5GHZ */ 3217 nchans = 0; 3218 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3219 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3220 if (nchans > 0) { 3221 memset(bands, 0, sizeof(bands)); 3222 chan_flags = 0; 3223 setbit(bands, IEEE80211_MODE_11A); 3224 #ifdef __not_yet__ 3225 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3226 setbit(bands, IEEE80211_MODE_11NA); 3227 chan_flags |= NET80211_CBW_FLAG_HT40; 3228 } 3229 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3230 3231 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3232 ic->ic_vhtcaps = 3233 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3234 3235 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3236 chan_flags |= NET80211_CBW_FLAG_VHT80; 3237 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3238 ic->ic_vhtcaps)) 3239 chan_flags |= NET80211_CBW_FLAG_VHT160; 3240 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3241 ic->ic_vhtcaps)) 3242 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3243 } 3244 #endif 3245 3246 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3247 for (i = 0; i < nchans && *n < maxchan; i++) { 3248 uint32_t nflags = 0; 3249 int cflags = chan_flags; 3250 3251 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3252 printf("%s: %s: Skipping disabled chan " 3253 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3254 channels[i].hw_value, 3255 channels[i].center_freq, channels[i].flags); 3256 continue; 3257 } 3258 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3259 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3260 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3261 nflags |= IEEE80211_CHAN_DFS; 3262 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3263 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3264 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3265 cflags &= ~NET80211_CBW_FLAG_VHT80; 3266 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3267 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3268 cflags &= ~NET80211_CBW_FLAG_HT40; 3269 3270 error = ieee80211_add_channel_cbw(c, maxchan, n, 3271 channels[i].hw_value, channels[i].center_freq, 3272 channels[i].max_power, 3273 nflags, bands, chan_flags); 3274 /* net80211::ENOBUFS: *n >= maxchans */ 3275 if (error != 0 && error != ENOBUFS) 3276 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3277 "returned error %d\n", ic->ic_name, 3278 __func__, channels[i].hw_value, 3279 channels[i].center_freq, channels[i].flags, 3280 nflags, chan_flags, cflags, error); 3281 if (error != 0) 3282 break; 3283 } 3284 } 3285 } 3286 3287 static void * 3288 lkpi_ieee80211_ifalloc(void) 3289 { 3290 struct ieee80211com *ic; 3291 3292 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3293 if (ic == NULL) 3294 return (NULL); 3295 3296 /* Setting these happens later when we have device information. */ 3297 ic->ic_softc = NULL; 3298 ic->ic_name = "linuxkpi"; 3299 3300 return (ic); 3301 } 3302 3303 struct ieee80211_hw * 3304 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3305 { 3306 struct ieee80211_hw *hw; 3307 struct lkpi_hw *lhw; 3308 struct wiphy *wiphy; 3309 3310 /* Get us and the driver data also allocated. */ 3311 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3312 if (wiphy == NULL) 3313 return (NULL); 3314 3315 lhw = wiphy_priv(wiphy); 3316 lhw->ops = ops; 3317 3318 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3319 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3320 TAILQ_INIT(&lhw->lvif_head); 3321 3322 /* 3323 * XXX-BZ TODO make sure there is a "_null" function to all ops 3324 * not initialized. 3325 */ 3326 hw = LHW_TO_HW(lhw); 3327 hw->wiphy = wiphy; 3328 hw->conf.flags |= IEEE80211_CONF_IDLE; 3329 hw->priv = (void *)(lhw + 1); 3330 3331 /* BSD Specific. */ 3332 lhw->ic = lkpi_ieee80211_ifalloc(); 3333 if (lhw->ic == NULL) { 3334 ieee80211_free_hw(hw); 3335 return (NULL); 3336 } 3337 3338 IMPROVE(); 3339 3340 return (hw); 3341 } 3342 3343 void 3344 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3345 { 3346 struct lkpi_hw *lhw; 3347 3348 lhw = HW_TO_LHW(hw); 3349 free(lhw->ic, M_LKPI80211); 3350 lhw->ic = NULL; 3351 3352 /* Cleanup more of lhw here or in wiphy_free()? */ 3353 sx_destroy(&lhw->lvif_sx); 3354 mtx_destroy(&lhw->mtx); 3355 IMPROVE(); 3356 } 3357 3358 void 3359 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3360 { 3361 struct lkpi_hw *lhw; 3362 struct ieee80211com *ic; 3363 3364 lhw = HW_TO_LHW(hw); 3365 ic = lhw->ic; 3366 3367 /* Now set a proper name before ieee80211_ifattach(). */ 3368 ic->ic_softc = lhw; 3369 ic->ic_name = name; 3370 3371 /* XXX-BZ do we also need to set wiphy name? */ 3372 } 3373 3374 struct ieee80211_hw * 3375 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3376 { 3377 struct lkpi_hw *lhw; 3378 3379 lhw = wiphy_priv(wiphy); 3380 return (LHW_TO_HW(lhw)); 3381 } 3382 3383 static void 3384 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3385 { 3386 struct ieee80211com *ic; 3387 3388 ic = lhw->ic; 3389 ieee80211_radiotap_attach(ic, 3390 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3391 LKPI_RTAP_TX_FLAGS_PRESENT, 3392 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3393 LKPI_RTAP_RX_FLAGS_PRESENT); 3394 } 3395 3396 int 3397 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3398 { 3399 struct ieee80211com *ic; 3400 struct lkpi_hw *lhw; 3401 int band, i; 3402 3403 lhw = HW_TO_LHW(hw); 3404 ic = lhw->ic; 3405 3406 /* We do it this late as wiphy->dev should be set for the name. */ 3407 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3408 if (lhw->workq == NULL) 3409 return (-EAGAIN); 3410 3411 /* XXX-BZ figure this out how they count his... */ 3412 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3413 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3414 hw->wiphy->perm_addr); 3415 } else if (hw->wiphy->n_addresses > 0) { 3416 /* We take the first one. */ 3417 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3418 hw->wiphy->addresses[0].addr); 3419 } else { 3420 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3421 } 3422 3423 #ifdef __not_yet__ 3424 /* See comment in lkpi_80211_txq_tx_one(). */ 3425 ic->ic_headroom = hw->extra_tx_headroom; 3426 #endif 3427 3428 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3429 ic->ic_opmode = IEEE80211_M_STA; 3430 3431 /* Set device capabilities. */ 3432 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3433 ic->ic_caps = 3434 IEEE80211_C_STA | 3435 IEEE80211_C_MONITOR | 3436 IEEE80211_C_WPA | /* WPA/RSN */ 3437 IEEE80211_C_WME | 3438 #if 0 3439 IEEE80211_C_PMGT | 3440 #endif 3441 IEEE80211_C_SHSLOT | /* short slot time supported */ 3442 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3443 ; 3444 #if 0 3445 /* Scanning is a different kind of beast to re-work. */ 3446 ic->ic_caps |= IEEE80211_C_BGSCAN; 3447 #endif 3448 if (lhw->ops->hw_scan) { 3449 /* 3450 * Advertise full-offload scanning. 3451 * 3452 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3453 * we essentially disable hw_scan for all drivers not setting 3454 * the flag. 3455 */ 3456 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3457 } 3458 3459 #ifdef __notyet__ 3460 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3461 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3462 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3463 | IEEE80211_HTCAP_MAXAMSDU_3839 3464 /* max A-MSDU length */ 3465 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3466 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3467 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3468 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3469 #endif 3470 3471 ic->ic_cryptocaps = 0; 3472 #ifdef TRY_HW_CRYPTO 3473 if (hw->wiphy->n_cipher_suites > 0) { 3474 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3475 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3476 hw->wiphy->cipher_suites[i]); 3477 } 3478 #endif 3479 3480 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3481 ic->ic_channels); 3482 3483 ieee80211_ifattach(ic); 3484 3485 ic->ic_update_mcast = lkpi_ic_update_mcast; 3486 ic->ic_update_promisc = lkpi_ic_update_promisc; 3487 ic->ic_update_chw = lkpi_ic_update_chw; 3488 ic->ic_parent = lkpi_ic_parent; 3489 ic->ic_scan_start = lkpi_ic_scan_start; 3490 ic->ic_scan_end = lkpi_ic_scan_end; 3491 ic->ic_set_channel = lkpi_ic_set_channel; 3492 ic->ic_transmit = lkpi_ic_transmit; 3493 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3494 ic->ic_vap_create = lkpi_ic_vap_create; 3495 ic->ic_vap_delete = lkpi_ic_vap_delete; 3496 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3497 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3498 3499 lhw->ic_node_alloc = ic->ic_node_alloc; 3500 ic->ic_node_alloc = lkpi_ic_node_alloc; 3501 lhw->ic_node_init = ic->ic_node_init; 3502 ic->ic_node_init = lkpi_ic_node_init; 3503 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3504 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3505 lhw->ic_node_free = ic->ic_node_free; 3506 ic->ic_node_free = lkpi_ic_node_free; 3507 3508 lkpi_radiotap_attach(lhw); 3509 3510 /* 3511 * Assign the first possible channel for now; seems Realtek drivers 3512 * expect one. 3513 * Also remember the amount of bands we support and the most rates 3514 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3515 */ 3516 lhw->supbands = lhw->max_rates = 0; 3517 for (band = 0; band < NUM_NL80211_BANDS && 3518 hw->conf.chandef.chan == NULL; band++) { 3519 struct ieee80211_supported_band *supband; 3520 struct linuxkpi_ieee80211_channel *channels; 3521 3522 supband = hw->wiphy->bands[band]; 3523 if (supband == NULL || supband->n_channels == 0) 3524 continue; 3525 3526 lhw->supbands++; 3527 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3528 3529 channels = supband->channels; 3530 for (i = 0; i < supband->n_channels; i++) { 3531 3532 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3533 continue; 3534 3535 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3536 NL80211_CHAN_NO_HT); 3537 break; 3538 } 3539 } 3540 3541 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3542 3543 /* Make sure we do not support more than net80211 is willing to take. */ 3544 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3545 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3546 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3547 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3548 } 3549 3550 /* 3551 * The maximum supported bitrates on any band + size for 3552 * DSSS Parameter Set give our per-band IE size. 3553 * XXX-BZ FIXME add HT VHT ... later 3554 * SSID is the responsibility of the driver and goes on the side. 3555 * The user specified bits coming from the vap go into the 3556 * "common ies" fields. 3557 */ 3558 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3559 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3560 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3561 /* 3562 * net80211 does not seem to support the DSSS Parameter Set but some of 3563 * the drivers insert it so calculate the extra fixed space in. 3564 */ 3565 lhw->scan_ie_len += 2 + 1; 3566 3567 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3568 if (hw->wiphy->max_scan_ie_len > 0) 3569 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3570 3571 if (bootverbose) 3572 ieee80211_announce(ic); 3573 3574 return (0); 3575 } 3576 3577 void 3578 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3579 { 3580 struct lkpi_hw *lhw; 3581 struct ieee80211com *ic; 3582 3583 lhw = HW_TO_LHW(hw); 3584 ic = lhw->ic; 3585 ieee80211_ifdetach(ic); 3586 } 3587 3588 void 3589 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3590 enum ieee80211_iface_iter flags, 3591 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3592 void *arg) 3593 { 3594 struct lkpi_hw *lhw; 3595 struct lkpi_vif *lvif; 3596 struct ieee80211_vif *vif; 3597 bool active, atomic, nin_drv; 3598 3599 lhw = HW_TO_LHW(hw); 3600 3601 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3602 IEEE80211_IFACE_ITER_RESUME_ALL| 3603 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3604 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3605 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3606 __func__, flags); 3607 } 3608 3609 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3610 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3611 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3612 3613 if (atomic) 3614 LKPI_80211_LHW_LVIF_LOCK(lhw); 3615 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3616 struct ieee80211vap *vap; 3617 3618 vif = LVIF_TO_VIF(lvif); 3619 3620 /* 3621 * If we want "active" interfaces, we need to distinguish on 3622 * whether the driver knows about them or not to be able to 3623 * handle the "resume" case correctly. Skip the ones the 3624 * driver does not know about. 3625 */ 3626 if (active && !lvif->added_to_drv && 3627 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3628 continue; 3629 3630 /* 3631 * If we shall skip interfaces not added to the driver do so 3632 * if we haven't yet. 3633 */ 3634 if (nin_drv && !lvif->added_to_drv) 3635 continue; 3636 3637 /* 3638 * Run the iterator function if we are either not asking 3639 * asking for active only or if the VAP is "running". 3640 */ 3641 /* XXX-BZ probably should have state in the lvif as well. */ 3642 vap = LVIF_TO_VAP(lvif); 3643 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3644 iterfunc(arg, vif->addr, vif); 3645 } 3646 if (atomic) 3647 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3648 } 3649 3650 void 3651 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3652 struct ieee80211_vif *vif, 3653 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3654 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3655 void *arg) 3656 { 3657 3658 UNIMPLEMENTED; 3659 } 3660 3661 void 3662 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3663 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3664 void *), 3665 void *arg) 3666 { 3667 3668 UNIMPLEMENTED; 3669 } 3670 3671 void 3672 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3673 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3674 { 3675 struct lkpi_hw *lhw; 3676 struct lkpi_vif *lvif; 3677 struct lkpi_sta *lsta; 3678 struct ieee80211_sta *sta; 3679 3680 KASSERT(hw != NULL && iterfunc != NULL, 3681 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3682 3683 lhw = HW_TO_LHW(hw); 3684 3685 LKPI_80211_LHW_LVIF_LOCK(lhw); 3686 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3687 3688 LKPI_80211_LVIF_LOCK(lvif); 3689 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3690 if (!lsta->added_to_drv) 3691 continue; 3692 sta = LSTA_TO_STA(lsta); 3693 iterfunc(arg, sta); 3694 } 3695 LKPI_80211_LVIF_UNLOCK(lvif); 3696 } 3697 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3698 } 3699 3700 int 3701 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3702 struct linuxkpi_ieee80211_regdomain *regd) 3703 { 3704 struct lkpi_hw *lhw; 3705 struct ieee80211com *ic; 3706 struct ieee80211_regdomain *rd; 3707 3708 lhw = wiphy_priv(wiphy); 3709 ic = lhw->ic; 3710 3711 rd = &ic->ic_regdomain; 3712 if (rd->isocc[0] == '\0') { 3713 rd->isocc[0] = regd->alpha2[0]; 3714 rd->isocc[1] = regd->alpha2[1]; 3715 } 3716 3717 TODO(); 3718 /* XXX-BZ finish the rest. */ 3719 3720 return (0); 3721 } 3722 3723 void 3724 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3725 struct cfg80211_scan_info *info) 3726 { 3727 struct lkpi_hw *lhw; 3728 struct ieee80211com *ic; 3729 struct ieee80211_scan_state *ss; 3730 3731 lhw = wiphy_priv(hw->wiphy); 3732 ic = lhw->ic; 3733 ss = ic->ic_scan; 3734 3735 ieee80211_scan_done(ss->ss_vap); 3736 3737 LKPI_80211_LHW_LOCK(lhw); 3738 free(lhw->hw_req, M_LKPI80211); 3739 lhw->hw_req = NULL; 3740 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3741 wakeup(lhw); 3742 LKPI_80211_LHW_UNLOCK(lhw); 3743 3744 return; 3745 } 3746 3747 void 3748 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3749 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3750 { 3751 struct epoch_tracker et; 3752 struct lkpi_hw *lhw; 3753 struct ieee80211com *ic; 3754 struct mbuf *m; 3755 struct skb_shared_info *shinfo; 3756 struct ieee80211_rx_status *rx_status; 3757 struct ieee80211_rx_stats rx_stats; 3758 struct ieee80211_node *ni; 3759 struct ieee80211vap *vap; 3760 struct ieee80211_hdr *hdr; 3761 struct lkpi_sta *lsta; 3762 int i, offset, ok; 3763 int8_t rssi; 3764 bool is_beacon; 3765 3766 if (skb->len < 2) { 3767 /* Need 80211 stats here. */ 3768 IMPROVE(); 3769 goto err; 3770 } 3771 3772 /* 3773 * For now do the data copy; we can later improve things. Might even 3774 * have an mbuf backing the skb data then? 3775 */ 3776 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3777 if (m == NULL) 3778 goto err; 3779 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3780 3781 shinfo = skb_shinfo(skb); 3782 offset = m->m_len; 3783 for (i = 0; i < shinfo->nr_frags; i++) { 3784 m_copyback(m, offset, shinfo->frags[i].size, 3785 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3786 shinfo->frags[i].offset); 3787 offset += shinfo->frags[i].size; 3788 } 3789 3790 rx_status = IEEE80211_SKB_RXCB(skb); 3791 3792 hdr = (void *)skb->data; 3793 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3794 3795 #ifdef LINUXKPI_DEBUG_80211 3796 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3797 goto no_trace_beacons; 3798 3799 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3800 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3801 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3802 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3803 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3804 shinfo, shinfo->nr_frags, 3805 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3806 3807 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3808 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3809 3810 /* Implement a dump_rxcb() !!! */ 3811 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3812 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3813 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3814 __func__, 3815 (uintmax_t)rx_status->boottime_ns, 3816 (uintmax_t)rx_status->mactime, 3817 rx_status->device_timestamp, 3818 rx_status->flag, 3819 rx_status->freq, 3820 rx_status->bw, 3821 rx_status->encoding, 3822 rx_status->ampdu_reference, 3823 rx_status->band, 3824 rx_status->chains, 3825 rx_status->chain_signal[0], 3826 rx_status->chain_signal[1], 3827 rx_status->chain_signal[2], 3828 rx_status->chain_signal[3], 3829 rx_status->signal, 3830 rx_status->enc_flags, 3831 rx_status->he_dcm, 3832 rx_status->he_gi, 3833 rx_status->he_ru, 3834 rx_status->zero_length_psdu_type, 3835 rx_status->nss, 3836 rx_status->rate_idx); 3837 no_trace_beacons: 3838 #endif 3839 3840 memset(&rx_stats, 0, sizeof(rx_stats)); 3841 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3842 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3843 rx_stats.c_nf = -96; 3844 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3845 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3846 rssi = rx_status->signal; 3847 else 3848 rssi = rx_stats.c_nf; 3849 /* 3850 * net80211 signal strength data are in .5 dBm units relative to 3851 * the current noise floor (see comment in ieee80211_node.h). 3852 */ 3853 rssi -= rx_stats.c_nf; 3854 rx_stats.c_rssi = rssi * 2; 3855 rx_stats.r_flags |= IEEE80211_R_BAND; 3856 rx_stats.c_band = 3857 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3858 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3859 rx_stats.c_freq = rx_status->freq; 3860 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3861 3862 /* XXX (*sta_statistics)() to get to some of that? */ 3863 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3864 3865 lhw = HW_TO_LHW(hw); 3866 ic = lhw->ic; 3867 3868 ok = ieee80211_add_rx_params(m, &rx_stats); 3869 if (ok == 0) { 3870 m_freem(m); 3871 counter_u64_add(ic->ic_ierrors, 1); 3872 goto err; 3873 } 3874 3875 if (sta != NULL) { 3876 lsta = STA_TO_LSTA(sta); 3877 ni = ieee80211_ref_node(lsta->ni); 3878 } else { 3879 struct ieee80211_frame_min *wh; 3880 3881 wh = mtod(m, struct ieee80211_frame_min *); 3882 ni = ieee80211_find_rxnode(ic, wh); 3883 if (ni != NULL) 3884 lsta = ni->ni_drv_data; 3885 } 3886 3887 if (ni != NULL) 3888 vap = ni->ni_vap; 3889 else 3890 /* 3891 * XXX-BZ can we improve this by looking at the frame hdr 3892 * or other meta-data passed up? 3893 */ 3894 vap = TAILQ_FIRST(&ic->ic_vaps); 3895 3896 #ifdef LINUXKPI_DEBUG_80211 3897 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3898 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3899 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3900 ni, vap, is_beacon ? " beacon" : ""); 3901 #endif 3902 3903 if (ni != NULL && vap != NULL && is_beacon && 3904 rx_status->device_timestamp > 0 && 3905 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3906 struct lkpi_vif *lvif; 3907 struct ieee80211_vif *vif; 3908 struct ieee80211_frame *wh; 3909 3910 wh = mtod(m, struct ieee80211_frame *); 3911 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3912 goto skip_device_ts; 3913 3914 lvif = VAP_TO_LVIF(vap); 3915 vif = LVIF_TO_VIF(lvif); 3916 3917 IMPROVE("TIMING_BEACON_ONLY?"); 3918 /* mac80211 specific (not net80211) so keep it here. */ 3919 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3920 /* 3921 * net80211 should take care of the other information (sync_tsf, 3922 * sync_dtim_count) as otherwise we need to parse the beacon. 3923 */ 3924 } 3925 skip_device_ts: 3926 3927 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3928 ieee80211_radiotap_active_vap(vap)) { 3929 struct lkpi_radiotap_rx_hdr *rtap; 3930 3931 rtap = &lhw->rtap_rx; 3932 rtap->wr_tsft = rx_status->device_timestamp; 3933 rtap->wr_flags = 0; 3934 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3935 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3936 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3937 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3938 #if 0 /* .. or it does not given we strip it below. */ 3939 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3940 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3941 #endif 3942 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3943 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3944 rtap->wr_rate = 0; 3945 IMPROVE(); 3946 /* XXX TODO status->encoding / rate_index / bw */ 3947 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3948 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3949 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3950 rtap->wr_dbm_antsignal = rssi; 3951 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3952 } 3953 3954 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3955 m_adj(m, -IEEE80211_CRC_LEN); 3956 3957 NET_EPOCH_ENTER(et); 3958 if (ni != NULL) { 3959 ok = ieee80211_input_mimo(ni, m); 3960 ieee80211_free_node(ni); 3961 if (ok < 0) 3962 m_freem(m); 3963 } else { 3964 ok = ieee80211_input_mimo_all(ic, m); 3965 /* mbuf got consumed. */ 3966 } 3967 NET_EPOCH_EXIT(et); 3968 3969 #ifdef LINUXKPI_DEBUG_80211 3970 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3971 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3972 #endif 3973 3974 IMPROVE(); 3975 3976 err: 3977 /* The skb is ours so we can free it :-) */ 3978 kfree_skb(skb); 3979 } 3980 3981 uint8_t 3982 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3983 { 3984 const struct ieee80211_frame *wh; 3985 3986 wh = (const struct ieee80211_frame *)hdr; 3987 return (ieee80211_gettid(wh)); 3988 } 3989 3990 struct wiphy * 3991 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3992 { 3993 struct lkpi_wiphy *lwiphy; 3994 3995 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3996 if (lwiphy == NULL) 3997 return (NULL); 3998 lwiphy->ops = ops; 3999 4000 /* XXX TODO */ 4001 return (LWIPHY_TO_WIPHY(lwiphy)); 4002 } 4003 4004 void 4005 linuxkpi_wiphy_free(struct wiphy *wiphy) 4006 { 4007 struct lkpi_wiphy *lwiphy; 4008 4009 if (wiphy == NULL) 4010 return; 4011 4012 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4013 kfree(lwiphy); 4014 } 4015 4016 uint32_t 4017 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4018 enum nl80211_band band) 4019 { 4020 4021 switch (band) { 4022 case NL80211_BAND_2GHZ: 4023 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4024 break; 4025 case NL80211_BAND_5GHZ: 4026 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4027 break; 4028 default: 4029 /* XXX abort, retry, error, panic? */ 4030 break; 4031 } 4032 4033 return (0); 4034 } 4035 4036 uint32_t 4037 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4038 { 4039 4040 return (ieee80211_mhz2ieee(freq, 0)); 4041 } 4042 4043 static struct lkpi_sta * 4044 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4045 { 4046 struct lkpi_sta *lsta, *temp; 4047 4048 LKPI_80211_LVIF_LOCK(lvif); 4049 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4050 if (lsta->ni == ni) { 4051 LKPI_80211_LVIF_UNLOCK(lvif); 4052 return (lsta); 4053 } 4054 } 4055 LKPI_80211_LVIF_UNLOCK(lvif); 4056 4057 return (NULL); 4058 } 4059 4060 struct ieee80211_sta * 4061 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4062 { 4063 struct lkpi_vif *lvif; 4064 struct lkpi_sta *lsta, *temp; 4065 struct ieee80211_sta *sta; 4066 4067 lvif = VIF_TO_LVIF(vif); 4068 4069 LKPI_80211_LVIF_LOCK(lvif); 4070 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4071 sta = LSTA_TO_STA(lsta); 4072 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4073 LKPI_80211_LVIF_UNLOCK(lvif); 4074 return (sta); 4075 } 4076 } 4077 LKPI_80211_LVIF_UNLOCK(lvif); 4078 return (NULL); 4079 } 4080 4081 struct ieee80211_sta * 4082 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4083 const uint8_t *addr, const uint8_t *ourvifaddr) 4084 { 4085 struct lkpi_hw *lhw; 4086 struct lkpi_vif *lvif; 4087 struct lkpi_sta *lsta; 4088 struct ieee80211_vif *vif; 4089 struct ieee80211_sta *sta; 4090 4091 lhw = wiphy_priv(hw->wiphy); 4092 sta = NULL; 4093 4094 LKPI_80211_LHW_LVIF_LOCK(lhw); 4095 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4096 4097 /* XXX-BZ check our address from the vif. */ 4098 4099 vif = LVIF_TO_VIF(lvif); 4100 if (ourvifaddr != NULL && 4101 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4102 continue; 4103 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4104 if (sta != NULL) 4105 break; 4106 } 4107 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4108 4109 if (sta != NULL) { 4110 lsta = STA_TO_LSTA(sta); 4111 if (!lsta->added_to_drv) 4112 return (NULL); 4113 } 4114 4115 return (sta); 4116 } 4117 4118 struct sk_buff * 4119 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4120 struct ieee80211_txq *txq) 4121 { 4122 struct lkpi_txq *ltxq; 4123 struct sk_buff *skb; 4124 4125 ltxq = TXQ_TO_LTXQ(txq); 4126 ltxq->seen_dequeue = true; 4127 4128 skb = skb_dequeue(<xq->skbq); 4129 4130 return (skb); 4131 } 4132 4133 void 4134 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4135 unsigned long *frame_cnt, unsigned long *byte_cnt) 4136 { 4137 struct lkpi_txq *ltxq; 4138 struct sk_buff *skb; 4139 unsigned long fc, bc; 4140 4141 ltxq = TXQ_TO_LTXQ(txq); 4142 4143 fc = bc = 0; 4144 skb_queue_walk(<xq->skbq, skb) { 4145 fc++; 4146 bc += skb->len; 4147 } 4148 if (frame_cnt) 4149 *frame_cnt = fc; 4150 if (byte_cnt) 4151 *byte_cnt = bc; 4152 4153 /* Validate that this is doing the correct thing. */ 4154 /* Should we keep track on en/dequeue? */ 4155 IMPROVE(); 4156 } 4157 4158 /* 4159 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4160 * The latter tries to derive the success status from the info flags 4161 * passed back from the driver. rawx_mit() saves the ni on the m and the 4162 * m on the skb for us to be able to give feedback to net80211. 4163 */ 4164 void 4165 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4166 int status) 4167 { 4168 struct ieee80211_node *ni; 4169 struct mbuf *m; 4170 4171 m = skb->m; 4172 skb->m = NULL; 4173 4174 if (m != NULL) { 4175 ni = m->m_pkthdr.PH_loc.ptr; 4176 /* Status: 0 is ok, != 0 is error. */ 4177 ieee80211_tx_complete(ni, m, status); 4178 /* ni & mbuf were consumed. */ 4179 } 4180 4181 kfree_skb(skb); 4182 } 4183 4184 void 4185 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4186 { 4187 struct ieee80211_tx_info *info; 4188 struct ieee80211_ratectl_tx_status txs; 4189 struct ieee80211_node *ni; 4190 int status; 4191 4192 info = IEEE80211_SKB_CB(skb); 4193 4194 if (skb->m != NULL) { 4195 struct mbuf *m; 4196 4197 m = skb->m; 4198 ni = m->m_pkthdr.PH_loc.ptr; 4199 memset(&txs, 0, sizeof(txs)); 4200 } else { 4201 ni = NULL; 4202 } 4203 4204 if (info->flags & IEEE80211_TX_STAT_ACK) { 4205 status = 0; /* No error. */ 4206 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4207 } else { 4208 status = 1; 4209 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4210 } 4211 4212 if (ni != NULL) { 4213 int ridx __unused; 4214 #ifdef LINUXKPI_DEBUG_80211 4215 int old_rate; 4216 4217 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4218 #endif 4219 txs.pktlen = skb->len; 4220 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4221 if (info->status.rates[0].count > 1) { 4222 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4223 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4224 } 4225 #if 0 /* Unused in net80211 currently. */ 4226 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4227 txs.final_rate = info->status.rates[0].idx; 4228 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4229 #endif 4230 if (info->status.is_valid_ack_signal) { 4231 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4232 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4233 } 4234 4235 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4236 ieee80211_ratectl_tx_complete(ni, &txs); 4237 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4238 4239 #ifdef LINUXKPI_DEBUG_80211 4240 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4241 printf("TX-RATE: %s: old %d new %d ridx %d, " 4242 "long_retries %d\n", __func__, 4243 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4244 ridx, txs.long_retries); 4245 } 4246 #endif 4247 } 4248 4249 #ifdef LINUXKPI_DEBUG_80211 4250 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4251 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4252 "band %u hw_queue %u tx_time_est %d : " 4253 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4254 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4255 "tx_time %u is_valid_ack_signal %u " 4256 "status_driver_data [ %p %p ]\n", 4257 __func__, hw, skb, status, info->flags, 4258 info->band, info->hw_queue, info->tx_time_est, 4259 info->status.rates[0].idx, info->status.rates[0].count, 4260 info->status.rates[0].flags, 4261 info->status.rates[1].idx, info->status.rates[1].count, 4262 info->status.rates[1].flags, 4263 info->status.rates[2].idx, info->status.rates[2].count, 4264 info->status.rates[2].flags, 4265 info->status.rates[3].idx, info->status.rates[3].count, 4266 info->status.rates[3].flags, 4267 info->status.ack_signal, info->status.ampdu_ack_len, 4268 info->status.ampdu_len, info->status.antenna, 4269 info->status.tx_time, info->status.is_valid_ack_signal, 4270 info->status.status_driver_data[0], 4271 info->status.status_driver_data[1]); 4272 #endif 4273 4274 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4275 } 4276 4277 /* 4278 * This is an internal bandaid for the moment for the way we glue 4279 * skbs and mbufs together for TX. Once we have skbs backed by 4280 * mbufs this should go away. 4281 * This is a public function but kept on the private KPI (lkpi_) 4282 * and is not exposed by a header file. 4283 */ 4284 static void 4285 lkpi_ieee80211_free_skb_mbuf(void *p) 4286 { 4287 struct ieee80211_node *ni; 4288 struct mbuf *m; 4289 4290 if (p == NULL) 4291 return; 4292 4293 m = (struct mbuf *)p; 4294 M_ASSERTPKTHDR(m); 4295 4296 ni = m->m_pkthdr.PH_loc.ptr; 4297 m->m_pkthdr.PH_loc.ptr = NULL; 4298 if (ni != NULL) 4299 ieee80211_free_node(ni); 4300 m_freem(m); 4301 } 4302 4303 void 4304 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4305 struct delayed_work *w, int delay) 4306 { 4307 struct lkpi_hw *lhw; 4308 4309 /* Need to make sure hw is in a stable (non-suspended) state. */ 4310 IMPROVE(); 4311 4312 lhw = HW_TO_LHW(hw); 4313 queue_delayed_work(lhw->workq, w, delay); 4314 } 4315 4316 void 4317 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4318 struct work_struct *w) 4319 { 4320 struct lkpi_hw *lhw; 4321 4322 /* Need to make sure hw is in a stable (non-suspended) state. */ 4323 IMPROVE(); 4324 4325 lhw = HW_TO_LHW(hw); 4326 queue_work(lhw->workq, w); 4327 } 4328 4329 struct sk_buff * 4330 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4331 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4332 { 4333 struct sk_buff *skb; 4334 struct ieee80211_frame *wh; 4335 uint8_t *p; 4336 size_t len; 4337 4338 len = sizeof(*wh); 4339 len += 2 + ssid_len; 4340 4341 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4342 if (skb == NULL) 4343 return (NULL); 4344 4345 skb_reserve(skb, hw->extra_tx_headroom); 4346 4347 wh = skb_put_zero(skb, sizeof(*wh)); 4348 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4349 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4350 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4351 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4352 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4353 4354 p = skb_put(skb, 2 + ssid_len); 4355 *p++ = IEEE80211_ELEMID_SSID; 4356 *p++ = ssid_len; 4357 if (ssid_len > 0) 4358 memcpy(p, ssid, ssid_len); 4359 4360 return (skb); 4361 } 4362 4363 struct sk_buff * 4364 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4365 struct ieee80211_vif *vif) 4366 { 4367 struct lkpi_vif *lvif; 4368 struct ieee80211vap *vap; 4369 struct sk_buff *skb; 4370 struct ieee80211_frame_pspoll *psp; 4371 uint16_t v; 4372 4373 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4374 if (skb == NULL) 4375 return (NULL); 4376 4377 skb_reserve(skb, hw->extra_tx_headroom); 4378 4379 lvif = VIF_TO_LVIF(vif); 4380 vap = LVIF_TO_VAP(lvif); 4381 4382 psp = skb_put_zero(skb, sizeof(*psp)); 4383 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4384 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4385 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4386 memcpy(&psp->i_aid, &v, sizeof(v)); 4387 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4388 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4389 4390 return (skb); 4391 } 4392 4393 struct sk_buff * 4394 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4395 struct ieee80211_vif *vif, bool qos) 4396 { 4397 struct lkpi_vif *lvif; 4398 struct ieee80211vap *vap; 4399 struct sk_buff *skb; 4400 struct ieee80211_frame *nullf; 4401 4402 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4403 if (skb == NULL) 4404 return (NULL); 4405 4406 skb_reserve(skb, hw->extra_tx_headroom); 4407 4408 lvif = VIF_TO_LVIF(vif); 4409 vap = LVIF_TO_VAP(lvif); 4410 4411 nullf = skb_put_zero(skb, sizeof(*nullf)); 4412 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4413 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4414 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4415 4416 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4417 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4418 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4419 4420 return (skb); 4421 } 4422 4423 struct wireless_dev * 4424 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4425 { 4426 struct lkpi_vif *lvif; 4427 4428 lvif = VIF_TO_LVIF(vif); 4429 return (&lvif->wdev); 4430 } 4431 4432 void 4433 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4434 { 4435 struct lkpi_vif *lvif; 4436 struct ieee80211vap *vap; 4437 enum ieee80211_state nstate; 4438 int arg; 4439 4440 lvif = VIF_TO_LVIF(vif); 4441 vap = LVIF_TO_VAP(lvif); 4442 4443 /* 4444 * Go to init; otherwise we need to elaborately check state and 4445 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4446 * Let the statemachine handle all neccessary changes. 4447 */ 4448 nstate = IEEE80211_S_INIT; 4449 arg = 0; /* Not a valid reason. */ 4450 4451 #ifdef LINUXKPI_DEBUG_80211 4452 if (linuxkpi_debug_80211 & D80211_TRACE) 4453 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4454 #endif 4455 ieee80211_new_state(vap, nstate, arg); 4456 } 4457 4458 void 4459 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4460 { 4461 struct lkpi_vif *lvif; 4462 struct ieee80211vap *vap; 4463 4464 lvif = VIF_TO_LVIF(vif); 4465 vap = LVIF_TO_VAP(lvif); 4466 4467 #ifdef LINUXKPI_DEBUG_80211 4468 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4469 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4470 vif, vap, ieee80211_state_name[vap->iv_state]); 4471 #endif 4472 ieee80211_beacon_miss(vap->iv_ic); 4473 } 4474 4475 MODULE_VERSION(linuxkpi_wlan, 1); 4476 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4477 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4478