1 /*- 2 * Copyright (c) 2020-2024 The FreeBSD Foundation 3 * Copyright (c) 2020-2024 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/param.h> 43 #include <sys/types.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 #include <sys/malloc.h> 47 #include <sys/module.h> 48 #include <sys/mutex.h> 49 #include <sys/socket.h> 50 #include <sys/sysctl.h> 51 #include <sys/queue.h> 52 #include <sys/taskqueue.h> 53 #include <sys/libkern.h> 54 55 #include <net/if.h> 56 #include <net/if_var.h> 57 #include <net/if_media.h> 58 #include <net/ethernet.h> 59 60 #include <net80211/ieee80211_var.h> 61 #include <net80211/ieee80211_proto.h> 62 #include <net80211/ieee80211_ratectl.h> 63 #include <net80211/ieee80211_radiotap.h> 64 #include <net80211/ieee80211_vht.h> 65 66 #define LINUXKPI_NET80211 67 #include <net/mac80211.h> 68 69 #include <linux/workqueue.h> 70 #include "linux_80211.h" 71 72 #define LKPI_80211_WME 73 /* #define LKPI_80211_HW_CRYPTO */ 74 /* #define LKPI_80211_VHT */ 75 /* #define LKPI_80211_HT */ 76 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 77 #define LKPI_80211_HT 78 #endif 79 80 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 81 82 /* XXX-BZ really want this and others in queue.h */ 83 #define TAILQ_ELEM_INIT(elm, field) do { \ 84 (elm)->field.tqe_next = NULL; \ 85 (elm)->field.tqe_prev = NULL; \ 86 } while (0) 87 88 /* -------------------------------------------------------------------------- */ 89 90 /* Keep public for as long as header files are using it too. */ 91 int linuxkpi_debug_80211; 92 93 #ifdef LINUXKPI_DEBUG_80211 94 SYSCTL_DECL(_compat_linuxkpi); 95 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 96 "LinuxKPI 802.11 compatibility layer"); 97 98 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 99 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 100 101 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 102 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 103 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 104 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 105 #else 106 #define UNIMPLEMENTED do { } while (0) 107 #define TRACEOK() do { } while (0) 108 #endif 109 110 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 111 #ifndef PREP_TX_INFO_DURATION 112 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 113 #endif 114 115 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118 /* IEEE 802.11-05/0257r1 */ 119 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 122 static const uint8_t ieee80211e_up_to_ac[] = { 123 IEEE80211_AC_BE, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BE, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VO, 130 IEEE80211_AC_VO, 131 #if 0 132 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 133 #endif 134 }; 135 136 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 137 /* 138 * XXX TODO need a "glue layer" to link cfg80211 ops to 139 * mac80211 and to the driver or net80211. 140 * Can we pass some on 1:1? Need to compare the (*f)(). 141 */ 142 }; 143 144 #if 0 145 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 146 struct ieee80211_node *); 147 #endif 148 static void lkpi_80211_txq_tx_one(struct lkpi_sta *, struct mbuf *); 149 static void lkpi_80211_txq_task(void *, int); 150 static void lkpi_80211_lhw_rxq_task(void *, int); 151 static void lkpi_ieee80211_free_skb_mbuf(void *); 152 #ifdef LKPI_80211_WME 153 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 154 #endif 155 156 #if defined(LKPI_80211_HT) 157 static void 158 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 159 { 160 struct ieee80211vap *vap; 161 uint8_t *ie; 162 struct ieee80211_ht_cap *htcap; 163 int i, rx_nss; 164 165 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 166 return; 167 168 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 169 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 170 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 171 172 sta->deflink.ht_cap.ht_supported = true; 173 174 /* htcap->ampdu_params_info */ 175 vap = ni->ni_vap; 176 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 177 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 178 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 179 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 180 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 181 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 182 183 ie = ni->ni_ies.htcap_ie; 184 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 185 if (ie[0] == IEEE80211_ELEMID_VENDOR) 186 ie += 4; 187 ie += 2; 188 htcap = (struct ieee80211_ht_cap *)ie; 189 sta->deflink.ht_cap.cap = htcap->cap_info; 190 sta->deflink.ht_cap.mcs = htcap->mcs; 191 192 rx_nss = 0; 193 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 194 if (htcap->mcs.rx_mask[i]) 195 rx_nss++; 196 } 197 if (ht_rx_nss != NULL) 198 *ht_rx_nss = rx_nss; 199 200 IMPROVE("sta->wme, sta->deflink.agg.max*"); 201 } 202 #endif 203 204 #if defined(LKPI_80211_VHT) 205 static void 206 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 207 { 208 209 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 210 return; 211 212 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 213 #ifdef __notyet__ 214 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 215 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 216 } else 217 #endif 218 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 219 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 220 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 221 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 222 } 223 224 IMPROVE("VHT sync ni to sta"); 225 return; 226 } 227 #endif 228 229 static void 230 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 231 const char *_f, int _l) 232 { 233 234 #ifdef LINUXKPI_DEBUG_80211 235 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 236 return; 237 if (lsta == NULL) 238 return; 239 240 printf("%s:%d lsta %p ni %p sta %p\n", 241 _f, _l, lsta, ni, &lsta->sta); 242 if (ni != NULL) 243 ieee80211_dump_node(NULL, ni); 244 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 245 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 246 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 247 #endif 248 } 249 250 static void 251 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 252 { 253 254 255 LKPI_80211_LVIF_LOCK(lvif); 256 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 257 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 258 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 259 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 260 LKPI_80211_LVIF_UNLOCK(lvif); 261 } 262 263 static struct lkpi_sta * 264 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 265 struct ieee80211_hw *hw, struct ieee80211_node *ni) 266 { 267 struct lkpi_sta *lsta; 268 struct lkpi_vif *lvif; 269 struct ieee80211_vif *vif; 270 struct ieee80211_sta *sta; 271 int band, i, tid; 272 int ht_rx_nss; 273 int vht_rx_nss; 274 275 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 276 M_NOWAIT | M_ZERO); 277 if (lsta == NULL) 278 return (NULL); 279 280 lsta->added_to_drv = false; 281 lsta->state = IEEE80211_STA_NOTEXIST; 282 /* 283 * Link the ni to the lsta here without taking a reference. 284 * For one we would have to take the reference in node_init() 285 * as ieee80211_alloc_node() will initialise the refcount after us. 286 * For the other a ni and an lsta are 1:1 mapped and always together 287 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 288 * using the ni references for the lsta as well despite it being 289 * two separate allocations. 290 */ 291 lsta->ni = ni; 292 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 293 ni->ni_drv_data = lsta; 294 295 lvif = VAP_TO_LVIF(vap); 296 vif = LVIF_TO_VIF(lvif); 297 sta = LSTA_TO_STA(lsta); 298 299 IEEE80211_ADDR_COPY(sta->addr, mac); 300 301 /* TXQ */ 302 for (tid = 0; tid < nitems(sta->txq); tid++) { 303 struct lkpi_txq *ltxq; 304 305 /* We are not limiting ourselves to hw.queues here. */ 306 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 307 M_LKPI80211, M_NOWAIT | M_ZERO); 308 if (ltxq == NULL) 309 goto cleanup; 310 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 311 if (tid == IEEE80211_NUM_TIDS) { 312 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 313 free(ltxq, M_LKPI80211); 314 continue; 315 } 316 IMPROVE("AP/if we support non-STA here too"); 317 ltxq->txq.ac = IEEE80211_AC_VO; 318 } else { 319 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 320 } 321 ltxq->seen_dequeue = false; 322 ltxq->stopped = false; 323 ltxq->txq.vif = vif; 324 ltxq->txq.tid = tid; 325 ltxq->txq.sta = sta; 326 TAILQ_ELEM_INIT(ltxq, txq_entry); 327 skb_queue_head_init(<xq->skbq); 328 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 329 sta->txq[tid] = <xq->txq; 330 } 331 332 /* Deflink information. */ 333 for (band = 0; band < NUM_NL80211_BANDS; band++) { 334 struct ieee80211_supported_band *supband; 335 336 supband = hw->wiphy->bands[band]; 337 if (supband == NULL) 338 continue; 339 340 for (i = 0; i < supband->n_bitrates; i++) { 341 342 IMPROVE("Further supband->bitrates[i]* checks?"); 343 /* or should we get them from the ni? */ 344 sta->deflink.supp_rates[band] |= BIT(i); 345 } 346 } 347 348 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 349 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 350 sta->deflink.rx_nss = 1; 351 352 ht_rx_nss = 0; 353 #if defined(LKPI_80211_HT) 354 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 355 #endif 356 vht_rx_nss = 0; 357 #if defined(LKPI_80211_VHT) 358 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 359 #endif 360 361 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 362 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 363 IMPROVE("he, ... smps_mode, .."); 364 365 /* Link configuration. */ 366 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 367 sta->link[0] = &sta->deflink; 368 for (i = 1; i < nitems(sta->link); i++) { 369 IMPROVE("more links; only link[0] = deflink currently."); 370 } 371 372 /* Deferred TX path. */ 373 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 374 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 375 mbufq_init(&lsta->txq, IFQ_MAXLEN); 376 lsta->txq_ready = true; 377 378 return (lsta); 379 380 cleanup: 381 for (; tid >= 0; tid--) { 382 struct lkpi_txq *ltxq; 383 384 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 385 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 386 free(sta->txq[tid], M_LKPI80211); 387 } 388 free(lsta, M_LKPI80211); 389 return (NULL); 390 } 391 392 static void 393 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 394 { 395 struct mbuf *m; 396 397 if (lsta->added_to_drv) 398 panic("%s: Trying to free an lsta still known to firmware: " 399 "lsta %p ni %p added_to_drv %d\n", 400 __func__, lsta, ni, lsta->added_to_drv); 401 402 /* XXX-BZ free resources, ... */ 403 IMPROVE(); 404 405 /* Drain sta->txq[] */ 406 407 LKPI_80211_LSTA_TXQ_LOCK(lsta); 408 lsta->txq_ready = false; 409 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 410 411 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 412 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 413 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 414 415 /* Flush mbufq (make sure to release ni refs!). */ 416 m = mbufq_dequeue(&lsta->txq); 417 while (m != NULL) { 418 struct ieee80211_node *nim; 419 420 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 421 if (nim != NULL) 422 ieee80211_free_node(nim); 423 m_freem(m); 424 m = mbufq_dequeue(&lsta->txq); 425 } 426 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 427 __func__, lsta, mbufq_len(&lsta->txq))); 428 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 429 430 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 431 432 IMPROVE("Make sure everything is cleaned up."); 433 434 /* Free lsta. */ 435 lsta->ni = NULL; 436 ni->ni_drv_data = NULL; 437 free(lsta, M_LKPI80211); 438 } 439 440 441 static enum nl80211_band 442 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 443 { 444 445 if (IEEE80211_IS_CHAN_2GHZ(c)) 446 return (NL80211_BAND_2GHZ); 447 else if (IEEE80211_IS_CHAN_5GHZ(c)) 448 return (NL80211_BAND_5GHZ); 449 #ifdef __notyet__ 450 else if () 451 return (NL80211_BAND_6GHZ); 452 else if () 453 return (NL80211_BAND_60GHZ); 454 else if (IEEE80211_IS_CHAN_GSM(c)) 455 return (NL80211_BAND_XXX); 456 #endif 457 else 458 panic("%s: unsupported band. c %p flags %#x\n", 459 __func__, c, c->ic_flags); 460 } 461 462 static uint32_t 463 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 464 { 465 466 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 467 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 468 switch (band) { 469 case NL80211_BAND_2GHZ: 470 return (IEEE80211_CHAN_2GHZ); 471 break; 472 case NL80211_BAND_5GHZ: 473 return (IEEE80211_CHAN_5GHZ); 474 break; 475 case NL80211_BAND_60GHZ: 476 break; 477 case NL80211_BAND_6GHZ: 478 break; 479 default: 480 panic("%s: unsupported band %u\n", __func__, band); 481 break; 482 } 483 484 IMPROVE(); 485 return (0x00); 486 } 487 488 #if 0 489 static enum ieee80211_ac_numbers 490 lkpi_ac_net_to_l80211(int ac) 491 { 492 493 switch (ac) { 494 case WME_AC_VO: 495 return (IEEE80211_AC_VO); 496 case WME_AC_VI: 497 return (IEEE80211_AC_VI); 498 case WME_AC_BE: 499 return (IEEE80211_AC_BE); 500 case WME_AC_BK: 501 return (IEEE80211_AC_BK); 502 default: 503 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 504 return (IEEE80211_AC_BE); 505 } 506 } 507 #endif 508 509 static enum nl80211_iftype 510 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 511 { 512 513 switch (opmode) { 514 case IEEE80211_M_IBSS: 515 return (NL80211_IFTYPE_ADHOC); 516 break; 517 case IEEE80211_M_STA: 518 return (NL80211_IFTYPE_STATION); 519 break; 520 case IEEE80211_M_WDS: 521 return (NL80211_IFTYPE_WDS); 522 break; 523 case IEEE80211_M_HOSTAP: 524 return (NL80211_IFTYPE_AP); 525 break; 526 case IEEE80211_M_MONITOR: 527 return (NL80211_IFTYPE_MONITOR); 528 break; 529 case IEEE80211_M_MBSS: 530 return (NL80211_IFTYPE_MESH_POINT); 531 break; 532 case IEEE80211_M_AHDEMO: 533 /* FALLTHROUGH */ 534 default: 535 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 536 /* FALLTHROUGH */ 537 } 538 return (NL80211_IFTYPE_UNSPECIFIED); 539 } 540 541 #ifdef LKPI_80211_HW_CRYPTO 542 static uint32_t 543 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 544 { 545 546 switch (wlan_cipher_suite) { 547 case WLAN_CIPHER_SUITE_WEP40: 548 return (IEEE80211_CRYPTO_WEP); 549 case WLAN_CIPHER_SUITE_TKIP: 550 return (IEEE80211_CRYPTO_TKIP); 551 case WLAN_CIPHER_SUITE_CCMP: 552 return (IEEE80211_CRYPTO_AES_CCM); 553 case WLAN_CIPHER_SUITE_WEP104: 554 return (IEEE80211_CRYPTO_WEP); 555 case WLAN_CIPHER_SUITE_AES_CMAC: 556 case WLAN_CIPHER_SUITE_GCMP: 557 case WLAN_CIPHER_SUITE_GCMP_256: 558 case WLAN_CIPHER_SUITE_CCMP_256: 559 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 560 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 561 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 562 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 563 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 564 break; 565 default: 566 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 567 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 568 } 569 570 return (0); 571 } 572 573 static uint32_t 574 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 575 { 576 577 switch (cipher) { 578 case IEEE80211_CIPHER_TKIP: 579 return (WLAN_CIPHER_SUITE_TKIP); 580 case IEEE80211_CIPHER_AES_CCM: 581 return (WLAN_CIPHER_SUITE_CCMP); 582 case IEEE80211_CIPHER_WEP: 583 if (keylen < 8) 584 return (WLAN_CIPHER_SUITE_WEP40); 585 else 586 return (WLAN_CIPHER_SUITE_WEP104); 587 break; 588 case IEEE80211_CIPHER_AES_OCB: 589 case IEEE80211_CIPHER_TKIPMIC: 590 case IEEE80211_CIPHER_CKIP: 591 case IEEE80211_CIPHER_NONE: 592 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 593 break; 594 default: 595 printf("%s: unknown cipher %#010x\n", __func__, cipher); 596 }; 597 return (0); 598 } 599 #endif 600 601 #ifdef __notyet__ 602 static enum ieee80211_sta_state 603 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 604 { 605 606 /* 607 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 608 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 609 */ 610 switch (state) { 611 case IEEE80211_S_INIT: 612 return (IEEE80211_STA_NOTEXIST); 613 case IEEE80211_S_SCAN: 614 return (IEEE80211_STA_NONE); 615 case IEEE80211_S_AUTH: 616 return (IEEE80211_STA_AUTH); 617 case IEEE80211_S_ASSOC: 618 return (IEEE80211_STA_ASSOC); 619 case IEEE80211_S_RUN: 620 return (IEEE80211_STA_AUTHORIZED); 621 case IEEE80211_S_CAC: 622 case IEEE80211_S_CSA: 623 case IEEE80211_S_SLEEP: 624 default: 625 UNIMPLEMENTED; 626 }; 627 628 return (IEEE80211_STA_NOTEXIST); 629 } 630 #endif 631 632 static struct linuxkpi_ieee80211_channel * 633 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 634 struct ieee80211_channel *c) 635 { 636 struct ieee80211_hw *hw; 637 struct linuxkpi_ieee80211_channel *channels; 638 enum nl80211_band band; 639 int i, nchans; 640 641 hw = LHW_TO_HW(lhw); 642 band = lkpi_net80211_chan_to_nl80211_band(c); 643 if (hw->wiphy->bands[band] == NULL) 644 return (NULL); 645 646 nchans = hw->wiphy->bands[band]->n_channels; 647 if (nchans <= 0) 648 return (NULL); 649 650 channels = hw->wiphy->bands[band]->channels; 651 for (i = 0; i < nchans; i++) { 652 if (channels[i].hw_value == c->ic_ieee) 653 return (&channels[i]); 654 } 655 656 return (NULL); 657 } 658 659 #if 0 660 static struct linuxkpi_ieee80211_channel * 661 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 662 { 663 struct linuxkpi_ieee80211_channel *chan; 664 struct ieee80211_channel *c; 665 struct lkpi_hw *lhw; 666 667 chan = NULL; 668 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 669 c = ni->ni_chan; 670 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 671 c = ic->ic_bsschan; 672 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 673 c = ic->ic_curchan; 674 else 675 c = NULL; 676 677 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 678 lhw = ic->ic_softc; 679 chan = lkpi_find_lkpi80211_chan(lhw, c); 680 } 681 682 return (chan); 683 } 684 #endif 685 686 struct linuxkpi_ieee80211_channel * 687 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 688 { 689 enum nl80211_band band; 690 691 for (band = 0; band < NUM_NL80211_BANDS; band++) { 692 struct ieee80211_supported_band *supband; 693 struct linuxkpi_ieee80211_channel *channels; 694 int i; 695 696 supband = wiphy->bands[band]; 697 if (supband == NULL || supband->n_channels == 0) 698 continue; 699 700 channels = supband->channels; 701 for (i = 0; i < supband->n_channels; i++) { 702 if (channels[i].center_freq == freq) 703 return (&channels[i]); 704 } 705 } 706 707 return (NULL); 708 } 709 710 #ifdef LKPI_80211_HW_CRYPTO 711 static int 712 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 713 enum set_key_cmd cmd) 714 { 715 struct ieee80211com *ic; 716 struct lkpi_hw *lhw; 717 struct ieee80211_hw *hw; 718 struct lkpi_vif *lvif; 719 struct ieee80211_vif *vif; 720 struct ieee80211_sta *sta; 721 struct ieee80211_node *ni; 722 struct ieee80211_key_conf *kc; 723 int error; 724 725 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 726 727 ic = vap->iv_ic; 728 lhw = ic->ic_softc; 729 hw = LHW_TO_HW(lhw); 730 lvif = VAP_TO_LVIF(vap); 731 vif = LVIF_TO_VIF(lvif); 732 733 memset(&kc, 0, sizeof(kc)); 734 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 735 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 736 k->wk_cipher->ic_cipher, k->wk_keylen); 737 kc->keyidx = k->wk_keyix; 738 #if 0 739 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 740 #endif 741 atomic64_set(&kc->tx_pn, k->wk_keytsc); 742 kc->keylen = k->wk_keylen; 743 memcpy(kc->key, k->wk_key, k->wk_keylen); 744 745 switch (kc->cipher) { 746 case WLAN_CIPHER_SUITE_CCMP: 747 kc->iv_len = k->wk_cipher->ic_header; 748 kc->icv_len = k->wk_cipher->ic_trailer; 749 break; 750 case WLAN_CIPHER_SUITE_TKIP: 751 default: 752 IMPROVE(); 753 return (0); 754 }; 755 756 ni = vap->iv_bss; 757 sta = ieee80211_find_sta(vif, ni->ni_bssid); 758 if (sta != NULL) { 759 struct lkpi_sta *lsta; 760 761 lsta = STA_TO_LSTA(sta); 762 lsta->kc = kc; 763 } 764 765 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 766 if (error != 0) { 767 /* XXX-BZ leaking kc currently */ 768 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 769 return (0); 770 } else { 771 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 772 "flags %#10x\n", __func__, 773 kc->keyidx, kc->hw_key_idx, kc->flags); 774 return (1); 775 } 776 } 777 778 static int 779 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 780 { 781 782 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 783 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 784 } 785 static int 786 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 787 { 788 789 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 790 } 791 #endif 792 793 static u_int 794 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 795 { 796 struct netdev_hw_addr_list *mc_list; 797 struct netdev_hw_addr *addr; 798 799 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 800 __func__, arg, sdl, cnt)); 801 802 mc_list = arg; 803 /* If it is on the list already skip it. */ 804 netdev_hw_addr_list_for_each(addr, mc_list) { 805 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 806 return (0); 807 } 808 809 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 810 if (addr == NULL) 811 return (0); 812 813 INIT_LIST_HEAD(&addr->addr_list); 814 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 815 /* XXX this should be a netdev function? */ 816 list_add(&addr->addr_list, &mc_list->addr_list); 817 mc_list->count++; 818 819 #ifdef LINUXKPI_DEBUG_80211 820 if (linuxkpi_debug_80211 & D80211_TRACE) 821 printf("%s:%d: mc_list count %d: added %6D\n", 822 __func__, __LINE__, mc_list->count, addr->addr, ":"); 823 #endif 824 825 return (1); 826 } 827 828 static void 829 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 830 { 831 struct lkpi_hw *lhw; 832 struct ieee80211_hw *hw; 833 struct netdev_hw_addr_list mc_list; 834 struct list_head *le, *next; 835 struct netdev_hw_addr *addr; 836 struct ieee80211vap *vap; 837 u64 mc; 838 unsigned int changed_flags, total_flags; 839 840 lhw = ic->ic_softc; 841 842 if (lhw->ops->prepare_multicast == NULL || 843 lhw->ops->configure_filter == NULL) 844 return; 845 846 if (!lhw->update_mc && !force) 847 return; 848 849 changed_flags = total_flags = 0; 850 mc_list.count = 0; 851 INIT_LIST_HEAD(&mc_list.addr_list); 852 if (ic->ic_allmulti == 0) { 853 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 854 if_foreach_llmaddr(vap->iv_ifp, 855 lkpi_ic_update_mcast_copy, &mc_list); 856 } else { 857 changed_flags |= FIF_ALLMULTI; 858 } 859 860 hw = LHW_TO_HW(lhw); 861 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 862 /* 863 * XXX-BZ make sure to get this sorted what is a change, 864 * what gets all set; what was already set? 865 */ 866 total_flags = changed_flags; 867 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 868 869 #ifdef LINUXKPI_DEBUG_80211 870 if (linuxkpi_debug_80211 & D80211_TRACE) 871 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 872 __func__, changed_flags, mc_list.count, total_flags); 873 #endif 874 875 if (mc_list.count != 0) { 876 list_for_each_safe(le, next, &mc_list.addr_list) { 877 addr = list_entry(le, struct netdev_hw_addr, addr_list); 878 free(addr, M_LKPI80211); 879 mc_list.count--; 880 } 881 } 882 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 883 __func__, &mc_list, mc_list.count)); 884 } 885 886 static enum ieee80211_bss_changed 887 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 888 struct ieee80211vap *vap, const char *_f, int _l) 889 { 890 enum ieee80211_bss_changed bss_changed; 891 892 bss_changed = 0; 893 894 #ifdef LINUXKPI_DEBUG_80211 895 if (linuxkpi_debug_80211 & D80211_TRACE) 896 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 897 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 898 "sync_device_ts %u bss_changed %#010jx\n", 899 __func__, __LINE__, _f, _l, 900 vif->cfg.assoc, vif->cfg.aid, 901 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 902 vif->bss_conf.sync_dtim_count, 903 (uintmax_t)vif->bss_conf.sync_tsf, 904 vif->bss_conf.sync_device_ts, 905 (uintmax_t)bss_changed); 906 #endif 907 908 if (vif->bss_conf.beacon_int != ni->ni_intval) { 909 vif->bss_conf.beacon_int = ni->ni_intval; 910 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 911 if (vif->bss_conf.beacon_int < 16) 912 vif->bss_conf.beacon_int = 16; 913 bss_changed |= BSS_CHANGED_BEACON_INT; 914 } 915 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 916 vap->iv_dtim_period > 0) { 917 vif->bss_conf.dtim_period = vap->iv_dtim_period; 918 bss_changed |= BSS_CHANGED_BEACON_INFO; 919 } 920 921 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 922 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 923 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 924 925 #ifdef LINUXKPI_DEBUG_80211 926 if (linuxkpi_debug_80211 & D80211_TRACE) 927 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 928 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 929 "sync_device_ts %u bss_changed %#010jx\n", 930 __func__, __LINE__, _f, _l, 931 vif->cfg.assoc, vif->cfg.aid, 932 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 933 vif->bss_conf.sync_dtim_count, 934 (uintmax_t)vif->bss_conf.sync_tsf, 935 vif->bss_conf.sync_device_ts, 936 (uintmax_t)bss_changed); 937 #endif 938 939 return (bss_changed); 940 } 941 942 static void 943 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 944 { 945 struct ieee80211_hw *hw; 946 int error; 947 bool cancel; 948 949 LKPI_80211_LHW_SCAN_LOCK(lhw); 950 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 951 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 952 if (!cancel) 953 return; 954 955 hw = LHW_TO_HW(lhw); 956 957 IEEE80211_UNLOCK(lhw->ic); 958 LKPI_80211_LHW_LOCK(lhw); 959 /* Need to cancel the scan. */ 960 lkpi_80211_mo_cancel_hw_scan(hw, vif); 961 LKPI_80211_LHW_UNLOCK(lhw); 962 963 /* Need to make sure we see ieee80211_scan_completed. */ 964 LKPI_80211_LHW_SCAN_LOCK(lhw); 965 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 966 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 967 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 968 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 969 970 IEEE80211_LOCK(lhw->ic); 971 972 if (cancel) 973 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 974 __func__, error, lhw, vif); 975 } 976 977 static void 978 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 979 { 980 struct lkpi_hw *lhw; 981 int error; 982 bool old; 983 984 old = hw->conf.flags & IEEE80211_CONF_IDLE; 985 if (old == new) 986 return; 987 988 hw->conf.flags ^= IEEE80211_CONF_IDLE; 989 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 990 if (error != 0 && error != EOPNOTSUPP) { 991 lhw = HW_TO_LHW(hw); 992 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 993 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 994 } 995 } 996 997 static enum ieee80211_bss_changed 998 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 999 struct lkpi_hw *lhw) 1000 { 1001 enum ieee80211_bss_changed changed; 1002 1003 changed = 0; 1004 sta->aid = 0; 1005 if (vif->cfg.assoc) { 1006 1007 lhw->update_mc = true; 1008 lkpi_update_mcast_filter(lhw->ic, true); 1009 1010 vif->cfg.assoc = false; 1011 vif->cfg.aid = 0; 1012 changed |= BSS_CHANGED_ASSOC; 1013 IMPROVE(); 1014 1015 /* 1016 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 1017 * assoc = false right away here will remove the sta from 1018 * firmware for iwlwifi. 1019 * We no longer do this but only return the BSS_CHNAGED value. 1020 * The caller is responsible for removing the sta gong to 1021 * IEEE80211_STA_NOTEXIST and then executing the 1022 * bss_info_changed() update. 1023 * See lkpi_sta_run_to_init() for more detailed comment. 1024 */ 1025 } 1026 1027 return (changed); 1028 } 1029 1030 static void 1031 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1032 bool dequeue_seen, bool no_emptyq) 1033 { 1034 struct lkpi_txq *ltxq; 1035 int tid; 1036 bool ltxq_empty; 1037 1038 /* Wake up all queues to know they are allocated in the driver. */ 1039 for (tid = 0; tid < nitems(sta->txq); tid++) { 1040 1041 if (tid == IEEE80211_NUM_TIDS) { 1042 IMPROVE("station specific?"); 1043 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1044 continue; 1045 } else if (tid >= hw->queues) 1046 continue; 1047 1048 if (sta->txq[tid] == NULL) 1049 continue; 1050 1051 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1052 if (dequeue_seen && !ltxq->seen_dequeue) 1053 continue; 1054 1055 LKPI_80211_LTXQ_LOCK(ltxq); 1056 ltxq_empty = skb_queue_empty(<xq->skbq); 1057 LKPI_80211_LTXQ_UNLOCK(ltxq); 1058 if (no_emptyq && ltxq_empty) 1059 continue; 1060 1061 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1062 } 1063 } 1064 1065 /* 1066 * On the way down from RUN -> ASSOC -> AUTH we may send a DISASSOC or DEAUTH 1067 * packet. The problem is that the state machine functions tend to hold the 1068 * LHW lock which will prevent lkpi_80211_txq_tx_one() from sending the packet. 1069 * We call this after dropping the ic lock and before acquiring the LHW lock. 1070 * we make sure no further packets are queued and if they are queued the task 1071 * will finish or be cancelled. At the end if a packet is left we manually 1072 * send it. scan_to_auth() would re-enable sending if the lsta would be 1073 * re-used. 1074 */ 1075 static void 1076 lkpi_80211_flush_tx(struct lkpi_hw *lhw, struct lkpi_sta *lsta) 1077 { 1078 struct mbufq mq; 1079 struct mbuf *m; 1080 int len; 1081 1082 LKPI_80211_LHW_UNLOCK_ASSERT(lhw); 1083 1084 /* Do not accept any new packets until scan_to_auth or lsta_free(). */ 1085 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1086 lsta->txq_ready = false; 1087 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1088 1089 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 1090 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 1091 1092 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1093 len = mbufq_len(&lsta->txq); 1094 if (len <= 0) { 1095 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1096 return; 1097 } 1098 1099 mbufq_init(&mq, IFQ_MAXLEN); 1100 mbufq_concat(&mq, &lsta->txq); 1101 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1102 1103 m = mbufq_dequeue(&mq); 1104 while (m != NULL) { 1105 lkpi_80211_txq_tx_one(lsta, m); 1106 m = mbufq_dequeue(&mq); 1107 } 1108 } 1109 1110 /* -------------------------------------------------------------------------- */ 1111 1112 static int 1113 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1114 { 1115 1116 return (0); 1117 } 1118 1119 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1120 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1121 1122 static int 1123 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1124 { 1125 struct linuxkpi_ieee80211_channel *chan; 1126 struct lkpi_chanctx *lchanctx; 1127 struct ieee80211_chanctx_conf *chanctx_conf; 1128 struct lkpi_hw *lhw; 1129 struct ieee80211_hw *hw; 1130 struct lkpi_vif *lvif; 1131 struct ieee80211_vif *vif; 1132 struct ieee80211_node *ni; 1133 struct lkpi_sta *lsta; 1134 enum ieee80211_bss_changed bss_changed; 1135 struct ieee80211_prep_tx_info prep_tx_info; 1136 uint32_t changed; 1137 int error; 1138 1139 /* 1140 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1141 * For all later (STATE >= AUTH) functions we need to use the lvif 1142 * cache which will be tracked even through (*iv_update_bss)(). 1143 */ 1144 1145 if (vap->iv_bss == NULL) { 1146 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1147 return (EINVAL); 1148 } 1149 /* 1150 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1151 * once we unlock here. This is due to net80211 allowing state changes 1152 * and new join1() despite having an active node as well as due to 1153 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1154 */ 1155 ni = ieee80211_ref_node(vap->iv_bss); 1156 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1157 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1158 "on vap %p\n", __func__, ni, vap); 1159 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1160 return (EINVAL); 1161 } 1162 1163 lhw = vap->iv_ic->ic_softc; 1164 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1165 if (chan == NULL) { 1166 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1167 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1168 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1169 return (ESRCH); 1170 } 1171 1172 hw = LHW_TO_HW(lhw); 1173 lvif = VAP_TO_LVIF(vap); 1174 vif = LVIF_TO_VIF(lvif); 1175 1176 LKPI_80211_LVIF_LOCK(lvif); 1177 /* XXX-BZ KASSERT later? */ 1178 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1179 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1180 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1181 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1182 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1183 lvif->lvif_bss_synched); 1184 return (EBUSY); 1185 } 1186 LKPI_80211_LVIF_UNLOCK(lvif); 1187 1188 IEEE80211_UNLOCK(vap->iv_ic); 1189 LKPI_80211_LHW_LOCK(lhw); 1190 1191 /* Add chanctx (or if exists, change it). */ 1192 if (vif->chanctx_conf != NULL) { 1193 chanctx_conf = vif->chanctx_conf; 1194 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1195 IMPROVE("diff changes for changed, working on live copy, rcu"); 1196 } else { 1197 /* Keep separate alloc as in Linux this is rcu managed? */ 1198 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1199 M_LKPI80211, M_WAITOK | M_ZERO); 1200 chanctx_conf = &lchanctx->chanctx_conf; 1201 } 1202 1203 chanctx_conf->rx_chains_dynamic = 1; 1204 chanctx_conf->rx_chains_static = 1; 1205 chanctx_conf->radar_enabled = 1206 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1207 chanctx_conf->def.chan = chan; 1208 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1209 chanctx_conf->def.center_freq1 = chan->center_freq; 1210 chanctx_conf->def.center_freq2 = 0; 1211 IMPROVE("Check vht_cap from band not just chan?"); 1212 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1213 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1214 #ifdef LKPI_80211_HT 1215 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1216 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1217 chanctx_conf->def.width = NL80211_CHAN_WIDTH_40; 1218 } else 1219 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20; 1220 } 1221 #endif 1222 #ifdef LKPI_80211_VHT 1223 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1224 #ifdef __notyet__ 1225 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1226 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80P80; 1227 chanctx_conf->def.center_freq2 = 0; /* XXX */ 1228 } else 1229 #endif 1230 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1231 chanctx_conf->def.width = NL80211_CHAN_WIDTH_160; 1232 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1233 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80; 1234 } 1235 #endif 1236 /* Responder ... */ 1237 chanctx_conf->min_def.chan = chan; 1238 chanctx_conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1239 chanctx_conf->min_def.center_freq1 = chan->center_freq; 1240 chanctx_conf->min_def.center_freq2 = 0; 1241 IMPROVE("currently 20_NOHT min_def only"); 1242 1243 /* Set bss info (bss_info_changed). */ 1244 bss_changed = 0; 1245 vif->bss_conf.bssid = ni->ni_bssid; 1246 bss_changed |= BSS_CHANGED_BSSID; 1247 vif->bss_conf.txpower = ni->ni_txpower; 1248 bss_changed |= BSS_CHANGED_TXPOWER; 1249 vif->cfg.idle = false; 1250 bss_changed |= BSS_CHANGED_IDLE; 1251 1252 /* vif->bss_conf.basic_rates ? Where exactly? */ 1253 1254 /* Should almost assert it is this. */ 1255 vif->cfg.assoc = false; 1256 vif->cfg.aid = 0; 1257 1258 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1259 1260 error = 0; 1261 if (vif->chanctx_conf != NULL) { 1262 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1263 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1264 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1265 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1266 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 1267 } else { 1268 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 1269 if (error == 0 || error == EOPNOTSUPP) { 1270 vif->bss_conf.chanreq.oper.chan = chanctx_conf->def.chan; 1271 vif->bss_conf.chanreq.oper.width = chanctx_conf->def.width; 1272 vif->bss_conf.chanreq.oper.center_freq1 = 1273 chanctx_conf->def.center_freq1; 1274 #ifdef LKPI_80211_HT 1275 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1276 /* Note: it is 10 not 20. */ 1277 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1278 vif->bss_conf.chandef.center_freq1 += 10; 1279 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1280 vif->bss_conf.chandef.center_freq1 -= 10; 1281 } 1282 #endif 1283 vif->bss_conf.chanreq.oper.center_freq2 = 1284 chanctx_conf->def.center_freq2; 1285 } else { 1286 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1287 "failed: %d\n", __func__, __LINE__, error); 1288 goto out; 1289 } 1290 1291 vif->bss_conf.chanctx_conf = chanctx_conf; 1292 1293 /* Assign vif chanctx. */ 1294 if (error == 0) 1295 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1296 &vif->bss_conf, chanctx_conf); 1297 if (error == EOPNOTSUPP) 1298 error = 0; 1299 if (error != 0) { 1300 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1301 "failed: %d\n", __func__, __LINE__, error); 1302 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1303 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1304 free(lchanctx, M_LKPI80211); 1305 goto out; 1306 } 1307 } 1308 IMPROVE("update radiotap chan fields too"); 1309 1310 /* RATES */ 1311 IMPROVE("bss info: not all needs to come now and rates are missing"); 1312 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1313 1314 /* 1315 * Given ni and lsta are 1:1 from alloc to free we can assert that 1316 * ni always has lsta data attach despite net80211 node swapping 1317 * under the hoods. 1318 */ 1319 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1320 __func__, ni, ni->ni_drv_data)); 1321 lsta = ni->ni_drv_data; 1322 1323 /* 1324 * Make sure in case the sta did not change and we re-add it, 1325 * that we can tx again. 1326 */ 1327 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1328 lsta->txq_ready = true; 1329 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1330 1331 LKPI_80211_LVIF_LOCK(lvif); 1332 /* Insert the [l]sta into the list of known stations. */ 1333 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1334 LKPI_80211_LVIF_UNLOCK(lvif); 1335 1336 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1337 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1338 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1339 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1340 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1341 if (error != 0) { 1342 IMPROVE("do we need to undo the chan ctx?"); 1343 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1344 "failed: %d\n", __func__, __LINE__, error); 1345 goto out; 1346 } 1347 #if 0 1348 lsta->added_to_drv = true; /* mo manages. */ 1349 #endif 1350 1351 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1352 1353 #if 0 1354 /* 1355 * Wakeup all queues now that sta is there so we have as much time to 1356 * possibly prepare the queue in the driver to be ready for the 1st 1357 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1358 * is no guarantee or way to check. 1359 * XXX-BZ and by now we know that this does not work on all drivers 1360 * for all queues. 1361 */ 1362 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1363 #endif 1364 1365 /* Start mgd_prepare_tx. */ 1366 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1367 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1368 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1369 lsta->in_mgd = true; 1370 1371 /* 1372 * What is going to happen next: 1373 * - <twiddle> .. we should end up in "auth_to_assoc" 1374 * - event_callback 1375 * - update sta_state (NONE to AUTH) 1376 * - mgd_complete_tx 1377 * (ideally we'd do that on a callback for something else ...) 1378 */ 1379 1380 LKPI_80211_LHW_UNLOCK(lhw); 1381 IEEE80211_LOCK(vap->iv_ic); 1382 1383 LKPI_80211_LVIF_LOCK(lvif); 1384 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 1385 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 1386 lsta->ni != vap->iv_bss) 1387 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1388 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1389 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1390 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1391 lvif->lvif_bss_synched, ni, lsta); 1392 1393 /* 1394 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 1395 * Given we cache lsta we use lsta->ni instead of ni here (even though 1396 * lsta->ni == ni) to be distinct from the rest of the code where we do 1397 * assume that ni == vap->iv_bss which it may or may not be. 1398 * So do NOT use iv_bss here anymore as that may have diverged from our 1399 * function local ni already while ic was unlocked and would lead to 1400 * inconsistencies. Go and see if we lost a race and do not update 1401 * lvif_bss_synched in that case. 1402 */ 1403 ieee80211_ref_node(lsta->ni); 1404 lvif->lvif_bss = lsta; 1405 if (lsta->ni == vap->iv_bss) { 1406 lvif->lvif_bss_synched = true; 1407 } else { 1408 /* Set to un-synched no matter what. */ 1409 lvif->lvif_bss_synched = false; 1410 /* 1411 * We do not error as someone has to take us down. 1412 * If we are followed by a 2nd, new net80211::join1() going to 1413 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 1414 * will take the lvif->lvif_bss node down eventually. 1415 * What happens with the vap->iv_bss node will entirely be up 1416 * to net80211 as we never used the node beyond alloc()/free() 1417 * and we do not hold an extra reference for that anymore given 1418 * ni : lsta == 1:1. 1419 */ 1420 } 1421 LKPI_80211_LVIF_UNLOCK(lvif); 1422 goto out_relocked; 1423 1424 out: 1425 LKPI_80211_LHW_UNLOCK(lhw); 1426 IEEE80211_LOCK(vap->iv_ic); 1427 out_relocked: 1428 /* 1429 * Release the reference that kept the ni stable locally 1430 * during the work of this function. 1431 */ 1432 if (ni != NULL) 1433 ieee80211_free_node(ni); 1434 return (error); 1435 } 1436 1437 static int 1438 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1439 { 1440 struct lkpi_hw *lhw; 1441 struct ieee80211_hw *hw; 1442 struct lkpi_vif *lvif; 1443 struct ieee80211_vif *vif; 1444 struct ieee80211_node *ni; 1445 struct lkpi_sta *lsta; 1446 struct ieee80211_sta *sta; 1447 struct ieee80211_prep_tx_info prep_tx_info; 1448 int error; 1449 1450 lhw = vap->iv_ic->ic_softc; 1451 hw = LHW_TO_HW(lhw); 1452 lvif = VAP_TO_LVIF(vap); 1453 vif = LVIF_TO_VIF(lvif); 1454 1455 LKPI_80211_LVIF_LOCK(lvif); 1456 #ifdef LINUXKPI_DEBUG_80211 1457 /* XXX-BZ KASSERT later; state going down so no action. */ 1458 if (lvif->lvif_bss == NULL) 1459 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1460 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1461 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1462 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1463 lvif->lvif_bss_synched); 1464 #endif 1465 1466 lsta = lvif->lvif_bss; 1467 LKPI_80211_LVIF_UNLOCK(lvif); 1468 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1469 "lvif %p vap %p\n", __func__, 1470 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1471 ni = lsta->ni; /* Reference held for lvif_bss. */ 1472 sta = LSTA_TO_STA(lsta); 1473 1474 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1475 1476 IEEE80211_UNLOCK(vap->iv_ic); 1477 LKPI_80211_LHW_LOCK(lhw); 1478 1479 /* flush, drop. */ 1480 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1481 1482 /* Wake tx queues to get packet(s) out. */ 1483 lkpi_wake_tx_queues(hw, sta, false, true); 1484 1485 /* flush, no drop */ 1486 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1487 1488 /* End mgd_complete_tx. */ 1489 if (lsta->in_mgd) { 1490 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1491 prep_tx_info.success = false; 1492 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1493 lsta->in_mgd = false; 1494 } 1495 1496 /* sync_rx_queues */ 1497 lkpi_80211_mo_sync_rx_queues(hw); 1498 1499 /* sta_pre_rcu_remove */ 1500 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1501 1502 /* Take the station down. */ 1503 1504 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1505 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1506 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1507 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1508 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1509 if (error != 0) { 1510 IMPROVE("do we need to undo the chan ctx?"); 1511 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1512 "failed: %d\n", __func__, __LINE__, error); 1513 goto out; 1514 } 1515 #if 0 1516 lsta->added_to_drv = false; /* mo manages. */ 1517 #endif 1518 1519 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1520 1521 LKPI_80211_LVIF_LOCK(lvif); 1522 /* Remove ni reference for this cache of lsta. */ 1523 lvif->lvif_bss = NULL; 1524 lvif->lvif_bss_synched = false; 1525 LKPI_80211_LVIF_UNLOCK(lvif); 1526 lkpi_lsta_remove(lsta, lvif); 1527 /* 1528 * The very last release the reference on the ni for the ni/lsta on 1529 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1530 * and potentially freed. 1531 */ 1532 ieee80211_free_node(ni); 1533 1534 /* conf_tx */ 1535 1536 /* Take the chan ctx down. */ 1537 if (vif->chanctx_conf != NULL) { 1538 struct lkpi_chanctx *lchanctx; 1539 struct ieee80211_chanctx_conf *chanctx_conf; 1540 1541 chanctx_conf = vif->chanctx_conf; 1542 /* Remove vif context. */ 1543 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1544 /* NB: vif->chanctx_conf is NULL now. */ 1545 1546 lkpi_hw_conf_idle(hw, true); 1547 1548 /* Remove chan ctx. */ 1549 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1550 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1551 free(lchanctx, M_LKPI80211); 1552 } 1553 1554 out: 1555 LKPI_80211_LHW_UNLOCK(lhw); 1556 IEEE80211_LOCK(vap->iv_ic); 1557 return (error); 1558 } 1559 1560 static int 1561 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1562 { 1563 int error; 1564 1565 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1566 if (error == 0) 1567 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1568 return (error); 1569 } 1570 1571 static int 1572 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1573 { 1574 struct lkpi_hw *lhw; 1575 struct ieee80211_hw *hw; 1576 struct lkpi_vif *lvif; 1577 struct ieee80211_vif *vif; 1578 struct lkpi_sta *lsta; 1579 struct ieee80211_prep_tx_info prep_tx_info; 1580 int error; 1581 1582 lhw = vap->iv_ic->ic_softc; 1583 hw = LHW_TO_HW(lhw); 1584 lvif = VAP_TO_LVIF(vap); 1585 vif = LVIF_TO_VIF(lvif); 1586 1587 IEEE80211_UNLOCK(vap->iv_ic); 1588 LKPI_80211_LHW_LOCK(lhw); 1589 1590 LKPI_80211_LVIF_LOCK(lvif); 1591 /* XXX-BZ KASSERT later? */ 1592 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1593 #ifdef LINUXKPI_DEBUG_80211 1594 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1595 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1596 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1597 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1598 lvif->lvif_bss_synched); 1599 #endif 1600 error = ENOTRECOVERABLE; 1601 LKPI_80211_LVIF_UNLOCK(lvif); 1602 goto out; 1603 } 1604 lsta = lvif->lvif_bss; 1605 LKPI_80211_LVIF_UNLOCK(lvif); 1606 1607 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1608 1609 /* Finish auth. */ 1610 IMPROVE("event callback"); 1611 1612 /* Update sta_state (NONE to AUTH). */ 1613 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1614 "NONE: %#x\n", __func__, lsta, lsta->state)); 1615 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1616 if (error != 0) { 1617 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1618 "failed: %d\n", __func__, __LINE__, error); 1619 goto out; 1620 } 1621 1622 /* End mgd_complete_tx. */ 1623 if (lsta->in_mgd) { 1624 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1625 prep_tx_info.success = true; 1626 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1627 lsta->in_mgd = false; 1628 } 1629 1630 /* Now start assoc. */ 1631 1632 /* Start mgd_prepare_tx. */ 1633 if (!lsta->in_mgd) { 1634 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1635 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1636 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1637 lsta->in_mgd = true; 1638 } 1639 1640 /* Wake tx queue to get packet out. */ 1641 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 1642 1643 /* 1644 * <twiddle> .. we end up in "assoc_to_run" 1645 * - update sta_state (AUTH to ASSOC) 1646 * - conf_tx [all] 1647 * - bss_info_changed (assoc, aid, ssid, ..) 1648 * - change_chanctx (if needed) 1649 * - event_callback 1650 * - mgd_complete_tx 1651 */ 1652 1653 out: 1654 LKPI_80211_LHW_UNLOCK(lhw); 1655 IEEE80211_LOCK(vap->iv_ic); 1656 return (error); 1657 } 1658 1659 /* auth_to_auth, assoc_to_assoc. */ 1660 static int 1661 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1662 { 1663 struct lkpi_hw *lhw; 1664 struct ieee80211_hw *hw; 1665 struct lkpi_vif *lvif; 1666 struct ieee80211_vif *vif; 1667 struct lkpi_sta *lsta; 1668 struct ieee80211_prep_tx_info prep_tx_info; 1669 int error; 1670 1671 lhw = vap->iv_ic->ic_softc; 1672 hw = LHW_TO_HW(lhw); 1673 lvif = VAP_TO_LVIF(vap); 1674 vif = LVIF_TO_VIF(lvif); 1675 1676 IEEE80211_UNLOCK(vap->iv_ic); 1677 LKPI_80211_LHW_LOCK(lhw); 1678 1679 LKPI_80211_LVIF_LOCK(lvif); 1680 /* XXX-BZ KASSERT later? */ 1681 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1682 #ifdef LINUXKPI_DEBUG_80211 1683 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1684 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1685 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1686 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1687 lvif->lvif_bss_synched); 1688 #endif 1689 LKPI_80211_LVIF_UNLOCK(lvif); 1690 error = ENOTRECOVERABLE; 1691 goto out; 1692 } 1693 lsta = lvif->lvif_bss; 1694 LKPI_80211_LVIF_UNLOCK(lvif); 1695 1696 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1697 lsta, lvif, vap)); 1698 1699 IMPROVE("event callback?"); 1700 1701 /* End mgd_complete_tx. */ 1702 if (lsta->in_mgd) { 1703 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1704 prep_tx_info.success = false; 1705 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1706 lsta->in_mgd = false; 1707 } 1708 1709 /* Now start assoc. */ 1710 1711 /* Start mgd_prepare_tx. */ 1712 if (!lsta->in_mgd) { 1713 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1714 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1715 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1716 lsta->in_mgd = true; 1717 } 1718 1719 error = 0; 1720 out: 1721 LKPI_80211_LHW_UNLOCK(lhw); 1722 IEEE80211_LOCK(vap->iv_ic); 1723 1724 return (error); 1725 } 1726 1727 static int 1728 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1729 { 1730 struct lkpi_hw *lhw; 1731 struct ieee80211_hw *hw; 1732 struct lkpi_vif *lvif; 1733 struct ieee80211_vif *vif; 1734 struct ieee80211_node *ni; 1735 struct lkpi_sta *lsta; 1736 struct ieee80211_sta *sta; 1737 struct ieee80211_prep_tx_info prep_tx_info; 1738 enum ieee80211_bss_changed bss_changed; 1739 int error; 1740 1741 lhw = vap->iv_ic->ic_softc; 1742 hw = LHW_TO_HW(lhw); 1743 lvif = VAP_TO_LVIF(vap); 1744 vif = LVIF_TO_VIF(lvif); 1745 1746 IEEE80211_UNLOCK(vap->iv_ic); 1747 LKPI_80211_LHW_LOCK(lhw); 1748 1749 LKPI_80211_LVIF_LOCK(lvif); 1750 #ifdef LINUXKPI_DEBUG_80211 1751 /* XXX-BZ KASSERT later; state going down so no action. */ 1752 if (lvif->lvif_bss == NULL) 1753 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1754 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1755 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1756 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1757 lvif->lvif_bss_synched); 1758 #endif 1759 lsta = lvif->lvif_bss; 1760 LKPI_80211_LVIF_UNLOCK(lvif); 1761 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1762 "lvif %p vap %p\n", __func__, 1763 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1764 1765 ni = lsta->ni; /* Reference held for lvif_bss. */ 1766 sta = LSTA_TO_STA(lsta); 1767 1768 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1769 1770 /* flush, drop. */ 1771 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1772 1773 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1774 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1775 !lsta->in_mgd) { 1776 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1777 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1778 prep_tx_info.was_assoc = true; 1779 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1780 lsta->in_mgd = true; 1781 } 1782 1783 LKPI_80211_LHW_UNLOCK(lhw); 1784 IEEE80211_LOCK(vap->iv_ic); 1785 1786 /* Call iv_newstate first so we get potential DEAUTH packet out. */ 1787 error = lvif->iv_newstate(vap, nstate, arg); 1788 if (error != 0) { 1789 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1790 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1791 goto outni; 1792 } 1793 1794 IEEE80211_UNLOCK(vap->iv_ic); 1795 1796 /* Ensure the packets get out. */ 1797 lkpi_80211_flush_tx(lhw, lsta); 1798 1799 LKPI_80211_LHW_LOCK(lhw); 1800 1801 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1802 1803 /* Wake tx queues to get packet(s) out. */ 1804 lkpi_wake_tx_queues(hw, sta, false, true); 1805 1806 /* flush, no drop */ 1807 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1808 1809 /* End mgd_complete_tx. */ 1810 if (lsta->in_mgd) { 1811 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1812 prep_tx_info.success = false; 1813 prep_tx_info.was_assoc = true; 1814 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1815 lsta->in_mgd = false; 1816 } 1817 1818 /* sync_rx_queues */ 1819 lkpi_80211_mo_sync_rx_queues(hw); 1820 1821 /* sta_pre_rcu_remove */ 1822 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1823 1824 /* Take the station down. */ 1825 1826 /* Update sta and change state (from AUTH) to NONE. */ 1827 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1828 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1829 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1830 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1831 if (error != 0) { 1832 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1833 "failed: %d\n", __func__, __LINE__, error); 1834 goto out; 1835 } 1836 1837 /* See comment in lkpi_sta_run_to_init(). */ 1838 bss_changed = 0; 1839 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1840 1841 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1842 1843 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1844 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1845 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1846 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1847 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1848 if (error != 0) { 1849 IMPROVE("do we need to undo the chan ctx?"); 1850 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1851 "failed: %d\n", __func__, __LINE__, error); 1852 goto out; 1853 } 1854 1855 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1856 1857 IMPROVE("Any bss_info changes to announce?"); 1858 vif->bss_conf.qos = 0; 1859 bss_changed |= BSS_CHANGED_QOS; 1860 vif->cfg.ssid_len = 0; 1861 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1862 bss_changed |= BSS_CHANGED_BSSID; 1863 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1864 1865 LKPI_80211_LVIF_LOCK(lvif); 1866 /* Remove ni reference for this cache of lsta. */ 1867 lvif->lvif_bss = NULL; 1868 lvif->lvif_bss_synched = false; 1869 LKPI_80211_LVIF_UNLOCK(lvif); 1870 lkpi_lsta_remove(lsta, lvif); 1871 /* 1872 * The very last release the reference on the ni for the ni/lsta on 1873 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1874 * and potentially freed. 1875 */ 1876 ieee80211_free_node(ni); 1877 1878 /* conf_tx */ 1879 1880 /* Take the chan ctx down. */ 1881 if (vif->chanctx_conf != NULL) { 1882 struct lkpi_chanctx *lchanctx; 1883 struct ieee80211_chanctx_conf *chanctx_conf; 1884 1885 chanctx_conf = vif->chanctx_conf; 1886 /* Remove vif context. */ 1887 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1888 /* NB: vif->chanctx_conf is NULL now. */ 1889 1890 lkpi_hw_conf_idle(hw, true); 1891 1892 /* Remove chan ctx. */ 1893 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1894 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1895 free(lchanctx, M_LKPI80211); 1896 } 1897 1898 error = EALREADY; 1899 out: 1900 LKPI_80211_LHW_UNLOCK(lhw); 1901 IEEE80211_LOCK(vap->iv_ic); 1902 outni: 1903 return (error); 1904 } 1905 1906 static int 1907 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1908 { 1909 int error; 1910 1911 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1912 if (error != 0 && error != EALREADY) 1913 return (error); 1914 1915 /* At this point iv_bss is long a new node! */ 1916 1917 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1918 return (error); 1919 } 1920 1921 static int 1922 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1923 { 1924 int error; 1925 1926 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1927 return (error); 1928 } 1929 1930 static int 1931 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1932 { 1933 int error; 1934 1935 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1936 return (error); 1937 } 1938 1939 static int 1940 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1941 { 1942 struct lkpi_hw *lhw; 1943 struct ieee80211_hw *hw; 1944 struct lkpi_vif *lvif; 1945 struct ieee80211_vif *vif; 1946 struct ieee80211_node *ni; 1947 struct lkpi_sta *lsta; 1948 struct ieee80211_sta *sta; 1949 struct ieee80211_prep_tx_info prep_tx_info; 1950 enum ieee80211_bss_changed bss_changed; 1951 int error; 1952 1953 lhw = vap->iv_ic->ic_softc; 1954 hw = LHW_TO_HW(lhw); 1955 lvif = VAP_TO_LVIF(vap); 1956 vif = LVIF_TO_VIF(lvif); 1957 1958 IEEE80211_UNLOCK(vap->iv_ic); 1959 LKPI_80211_LHW_LOCK(lhw); 1960 1961 LKPI_80211_LVIF_LOCK(lvif); 1962 /* XXX-BZ KASSERT later? */ 1963 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1964 #ifdef LINUXKPI_DEBUG_80211 1965 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1966 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1967 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1968 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1969 lvif->lvif_bss_synched); 1970 #endif 1971 LKPI_80211_LVIF_UNLOCK(lvif); 1972 error = ENOTRECOVERABLE; 1973 goto out; 1974 } 1975 lsta = lvif->lvif_bss; 1976 LKPI_80211_LVIF_UNLOCK(lvif); 1977 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1978 "lvif %p vap %p\n", __func__, 1979 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1980 1981 ni = lsta->ni; /* Reference held for lvif_bss. */ 1982 1983 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1984 "and to lesser extend ieee80211_notify_node_join"); 1985 1986 /* Finish assoc. */ 1987 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1988 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1989 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1990 sta = LSTA_TO_STA(lsta); 1991 sta->aid = IEEE80211_NODE_AID(ni); 1992 #ifdef LKPI_80211_WME 1993 if (vap->iv_flags & IEEE80211_F_WME) 1994 sta->wme = true; 1995 #endif 1996 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1997 if (error != 0) { 1998 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1999 "failed: %d\n", __func__, __LINE__, error); 2000 goto out; 2001 } 2002 2003 IMPROVE("wme / conf_tx [all]"); 2004 2005 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2006 bss_changed = 0; 2007 #ifdef LKPI_80211_WME 2008 bss_changed |= lkpi_wme_update(lhw, vap, true); 2009 #endif 2010 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 2011 vif->cfg.assoc = true; 2012 vif->cfg.aid = IEEE80211_NODE_AID(ni); 2013 bss_changed |= BSS_CHANGED_ASSOC; 2014 } 2015 /* We set SSID but this is not BSSID! */ 2016 vif->cfg.ssid_len = ni->ni_esslen; 2017 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 2018 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 2019 vif->bss_conf.use_short_preamble) { 2020 vif->bss_conf.use_short_preamble ^= 1; 2021 /* bss_changed |= BSS_CHANGED_??? */ 2022 } 2023 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 2024 vif->bss_conf.use_short_slot) { 2025 vif->bss_conf.use_short_slot ^= 1; 2026 /* bss_changed |= BSS_CHANGED_??? */ 2027 } 2028 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 2029 vif->bss_conf.qos) { 2030 vif->bss_conf.qos ^= 1; 2031 bss_changed |= BSS_CHANGED_QOS; 2032 } 2033 2034 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2035 2036 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2037 2038 /* - change_chanctx (if needed) 2039 * - event_callback 2040 */ 2041 2042 /* End mgd_complete_tx. */ 2043 if (lsta->in_mgd) { 2044 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2045 prep_tx_info.success = true; 2046 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2047 lsta->in_mgd = false; 2048 } 2049 2050 lkpi_hw_conf_idle(hw, false); 2051 2052 /* 2053 * And then: 2054 * - (more packets)? 2055 * - set_key 2056 * - set_default_unicast_key 2057 * - set_key (?) 2058 * - ipv6_addr_change (?) 2059 */ 2060 /* Prepare_multicast && configure_filter. */ 2061 lhw->update_mc = true; 2062 lkpi_update_mcast_filter(vap->iv_ic, true); 2063 2064 if (!ieee80211_node_is_authorized(ni)) { 2065 IMPROVE("net80211 does not consider node authorized"); 2066 } 2067 2068 #if defined(LKPI_80211_HT) 2069 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 2070 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 2071 #endif 2072 2073 /* Update sta_state (ASSOC to AUTHORIZED). */ 2074 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2075 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2076 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2077 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 2078 if (error != 0) { 2079 IMPROVE("undo some changes?"); 2080 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 2081 "failed: %d\n", __func__, __LINE__, error); 2082 goto out; 2083 } 2084 2085 /* - drv_config (?) 2086 * - bss_info_changed 2087 * - set_rekey_data (?) 2088 * 2089 * And now we should be passing packets. 2090 */ 2091 IMPROVE("Need that bssid setting, and the keys"); 2092 2093 bss_changed = 0; 2094 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2095 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2096 2097 out: 2098 LKPI_80211_LHW_UNLOCK(lhw); 2099 IEEE80211_LOCK(vap->iv_ic); 2100 return (error); 2101 } 2102 2103 static int 2104 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2105 { 2106 int error; 2107 2108 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2109 if (error == 0) 2110 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2111 return (error); 2112 } 2113 2114 static int 2115 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2116 { 2117 struct lkpi_hw *lhw; 2118 struct ieee80211_hw *hw; 2119 struct lkpi_vif *lvif; 2120 struct ieee80211_vif *vif; 2121 struct ieee80211_node *ni; 2122 struct lkpi_sta *lsta; 2123 struct ieee80211_sta *sta; 2124 struct ieee80211_prep_tx_info prep_tx_info; 2125 #if 0 2126 enum ieee80211_bss_changed bss_changed; 2127 #endif 2128 int error; 2129 2130 lhw = vap->iv_ic->ic_softc; 2131 hw = LHW_TO_HW(lhw); 2132 lvif = VAP_TO_LVIF(vap); 2133 vif = LVIF_TO_VIF(lvif); 2134 2135 LKPI_80211_LVIF_LOCK(lvif); 2136 #ifdef LINUXKPI_DEBUG_80211 2137 /* XXX-BZ KASSERT later; state going down so no action. */ 2138 if (lvif->lvif_bss == NULL) 2139 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2140 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2141 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2142 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2143 lvif->lvif_bss_synched); 2144 #endif 2145 lsta = lvif->lvif_bss; 2146 LKPI_80211_LVIF_UNLOCK(lvif); 2147 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2148 "lvif %p vap %p\n", __func__, 2149 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2150 2151 ni = lsta->ni; /* Reference held for lvif_bss. */ 2152 sta = LSTA_TO_STA(lsta); 2153 2154 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2155 2156 IEEE80211_UNLOCK(vap->iv_ic); 2157 LKPI_80211_LHW_LOCK(lhw); 2158 2159 /* flush, drop. */ 2160 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2161 2162 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2163 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2164 !lsta->in_mgd) { 2165 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2166 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2167 prep_tx_info.was_assoc = true; 2168 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2169 lsta->in_mgd = true; 2170 } 2171 2172 LKPI_80211_LHW_UNLOCK(lhw); 2173 IEEE80211_LOCK(vap->iv_ic); 2174 2175 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2176 error = lvif->iv_newstate(vap, nstate, arg); 2177 if (error != 0) { 2178 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2179 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2180 goto outni; 2181 } 2182 2183 IEEE80211_UNLOCK(vap->iv_ic); 2184 2185 /* Ensure the packets get out. */ 2186 lkpi_80211_flush_tx(lhw, lsta); 2187 2188 LKPI_80211_LHW_LOCK(lhw); 2189 2190 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2191 2192 /* Wake tx queues to get packet(s) out. */ 2193 lkpi_wake_tx_queues(hw, sta, false, true); 2194 2195 /* flush, no drop */ 2196 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2197 2198 /* End mgd_complete_tx. */ 2199 if (lsta->in_mgd) { 2200 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2201 prep_tx_info.success = false; 2202 prep_tx_info.was_assoc = true; 2203 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2204 lsta->in_mgd = false; 2205 } 2206 2207 #if 0 2208 /* sync_rx_queues */ 2209 lkpi_80211_mo_sync_rx_queues(hw); 2210 2211 /* sta_pre_rcu_remove */ 2212 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2213 #endif 2214 2215 /* Take the station down. */ 2216 2217 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2218 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2219 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2220 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2221 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2222 if (error != 0) { 2223 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2224 "failed: %d\n", __func__, __LINE__, error); 2225 goto out; 2226 } 2227 2228 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2229 2230 /* Update sta_state (ASSOC to AUTH). */ 2231 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2232 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2233 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2234 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2235 if (error != 0) { 2236 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2237 "failed: %d\n", __func__, __LINE__, error); 2238 goto out; 2239 } 2240 2241 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2242 2243 #if 0 2244 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2245 lkpi_disassoc(sta, vif, lhw); 2246 #endif 2247 2248 error = EALREADY; 2249 out: 2250 LKPI_80211_LHW_UNLOCK(lhw); 2251 IEEE80211_LOCK(vap->iv_ic); 2252 outni: 2253 return (error); 2254 } 2255 2256 static int 2257 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2258 { 2259 struct lkpi_hw *lhw; 2260 struct ieee80211_hw *hw; 2261 struct lkpi_vif *lvif; 2262 struct ieee80211_vif *vif; 2263 struct ieee80211_node *ni; 2264 struct lkpi_sta *lsta; 2265 struct ieee80211_sta *sta; 2266 struct ieee80211_prep_tx_info prep_tx_info; 2267 enum ieee80211_bss_changed bss_changed; 2268 int error; 2269 2270 lhw = vap->iv_ic->ic_softc; 2271 hw = LHW_TO_HW(lhw); 2272 lvif = VAP_TO_LVIF(vap); 2273 vif = LVIF_TO_VIF(lvif); 2274 2275 IEEE80211_UNLOCK(vap->iv_ic); 2276 LKPI_80211_LHW_LOCK(lhw); 2277 2278 LKPI_80211_LVIF_LOCK(lvif); 2279 #ifdef LINUXKPI_DEBUG_80211 2280 /* XXX-BZ KASSERT later; state going down so no action. */ 2281 if (lvif->lvif_bss == NULL) 2282 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2283 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2284 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2285 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2286 lvif->lvif_bss_synched); 2287 #endif 2288 lsta = lvif->lvif_bss; 2289 LKPI_80211_LVIF_UNLOCK(lvif); 2290 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2291 "lvif %p vap %p\n", __func__, 2292 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2293 2294 ni = lsta->ni; /* Reference held for lvif_bss. */ 2295 sta = LSTA_TO_STA(lsta); 2296 2297 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2298 2299 /* flush, drop. */ 2300 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2301 2302 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2303 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2304 !lsta->in_mgd) { 2305 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2306 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2307 prep_tx_info.was_assoc = true; 2308 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2309 lsta->in_mgd = true; 2310 } 2311 2312 LKPI_80211_LHW_UNLOCK(lhw); 2313 IEEE80211_LOCK(vap->iv_ic); 2314 2315 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2316 error = lvif->iv_newstate(vap, nstate, arg); 2317 if (error != 0) { 2318 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2319 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2320 goto outni; 2321 } 2322 2323 IEEE80211_UNLOCK(vap->iv_ic); 2324 2325 /* Ensure the packets get out. */ 2326 lkpi_80211_flush_tx(lhw, lsta); 2327 2328 LKPI_80211_LHW_LOCK(lhw); 2329 2330 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2331 2332 /* Wake tx queues to get packet(s) out. */ 2333 lkpi_wake_tx_queues(hw, sta, false, true); 2334 2335 /* flush, no drop */ 2336 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2337 2338 /* End mgd_complete_tx. */ 2339 if (lsta->in_mgd) { 2340 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2341 prep_tx_info.success = false; 2342 prep_tx_info.was_assoc = true; 2343 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2344 lsta->in_mgd = false; 2345 } 2346 2347 /* sync_rx_queues */ 2348 lkpi_80211_mo_sync_rx_queues(hw); 2349 2350 /* sta_pre_rcu_remove */ 2351 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2352 2353 /* Take the station down. */ 2354 2355 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2356 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2357 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2358 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2359 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2360 if (error != 0) { 2361 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2362 "failed: %d\n", __func__, __LINE__, error); 2363 goto out; 2364 } 2365 2366 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2367 2368 /* Update sta_state (ASSOC to AUTH). */ 2369 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2370 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2371 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2372 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2373 if (error != 0) { 2374 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2375 "failed: %d\n", __func__, __LINE__, error); 2376 goto out; 2377 } 2378 2379 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2380 2381 /* Update sta and change state (from AUTH) to NONE. */ 2382 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2383 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2384 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2385 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2386 if (error != 0) { 2387 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2388 "failed: %d\n", __func__, __LINE__, error); 2389 goto out; 2390 } 2391 2392 bss_changed = 0; 2393 /* 2394 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2395 * 2396 * One would expect this to happen when going off AUTHORIZED. 2397 * See comment there; removes the sta from fw if not careful 2398 * (bss_info_changed() change is executed right away). 2399 * 2400 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2401 * as otherwise drivers (iwlwifi at least) will silently not remove 2402 * the sta from the firmware and when we will add a new one trigger 2403 * a fw assert. 2404 * 2405 * The order which works best so far avoiding early removal or silent 2406 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2407 * the iwlwifi:mac80211.c case still to be tested): 2408 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2409 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2410 * (removes the sta given assoc is false) 2411 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2412 * 4) call unassign_vif_chanctx 2413 * 5) call lkpi_hw_conf_idle 2414 * 6) call remove_chanctx 2415 */ 2416 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2417 2418 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2419 2420 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2421 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2422 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2423 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2424 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2425 if (error != 0) { 2426 IMPROVE("do we need to undo the chan ctx?"); 2427 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2428 "failed: %d\n", __func__, __LINE__, error); 2429 goto out; 2430 } 2431 2432 lkpi_lsta_remove(lsta, lvif); 2433 2434 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2435 2436 IMPROVE("Any bss_info changes to announce?"); 2437 vif->bss_conf.qos = 0; 2438 bss_changed |= BSS_CHANGED_QOS; 2439 vif->cfg.ssid_len = 0; 2440 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2441 bss_changed |= BSS_CHANGED_BSSID; 2442 vif->bss_conf.use_short_preamble = false; 2443 vif->bss_conf.qos = false; 2444 /* XXX BSS_CHANGED_???? */ 2445 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2446 2447 LKPI_80211_LVIF_LOCK(lvif); 2448 /* Remove ni reference for this cache of lsta. */ 2449 lvif->lvif_bss = NULL; 2450 lvif->lvif_bss_synched = false; 2451 LKPI_80211_LVIF_UNLOCK(lvif); 2452 /* 2453 * The very last release the reference on the ni for the ni/lsta on 2454 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2455 * and potentially freed. 2456 */ 2457 ieee80211_free_node(ni); 2458 2459 /* conf_tx */ 2460 2461 /* Take the chan ctx down. */ 2462 if (vif->chanctx_conf != NULL) { 2463 struct lkpi_chanctx *lchanctx; 2464 struct ieee80211_chanctx_conf *chanctx_conf; 2465 2466 chanctx_conf = vif->chanctx_conf; 2467 /* Remove vif context. */ 2468 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2469 /* NB: vif->chanctx_conf is NULL now. */ 2470 2471 lkpi_hw_conf_idle(hw, true); 2472 2473 /* Remove chan ctx. */ 2474 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2475 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2476 free(lchanctx, M_LKPI80211); 2477 } 2478 2479 error = EALREADY; 2480 out: 2481 LKPI_80211_LHW_UNLOCK(lhw); 2482 IEEE80211_LOCK(vap->iv_ic); 2483 outni: 2484 return (error); 2485 } 2486 2487 static int 2488 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2489 { 2490 2491 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2492 } 2493 2494 static int 2495 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2496 { 2497 int error; 2498 2499 error = lkpi_sta_run_to_init(vap, nstate, arg); 2500 if (error != 0 && error != EALREADY) 2501 return (error); 2502 2503 /* At this point iv_bss is long a new node! */ 2504 2505 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2506 return (error); 2507 } 2508 2509 /* -------------------------------------------------------------------------- */ 2510 2511 /* 2512 * The matches the documented state changes in net80211::sta_newstate(). 2513 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2514 * there are "invalid" (so there is a room for failure here). 2515 */ 2516 struct fsm_state { 2517 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2518 enum ieee80211_state ostate; 2519 enum ieee80211_state nstate; 2520 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2521 } sta_state_fsm[] = { 2522 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2523 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2524 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2525 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2526 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2527 2528 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2529 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2530 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2531 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2532 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2533 2534 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2535 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2536 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2537 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2538 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2539 2540 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2541 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2542 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2543 2544 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2545 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2546 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2547 2548 /* Dummy at the end without handler. */ 2549 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2550 }; 2551 2552 static int 2553 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2554 { 2555 struct ieee80211com *ic; 2556 struct lkpi_hw *lhw; 2557 struct lkpi_vif *lvif; 2558 struct ieee80211_vif *vif; 2559 struct fsm_state *s; 2560 enum ieee80211_state ostate; 2561 int error; 2562 2563 ic = vap->iv_ic; 2564 IEEE80211_LOCK_ASSERT(ic); 2565 ostate = vap->iv_state; 2566 2567 #ifdef LINUXKPI_DEBUG_80211 2568 if (linuxkpi_debug_80211 & D80211_TRACE) 2569 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2570 __func__, __LINE__, vap, nstate, arg); 2571 #endif 2572 2573 if (vap->iv_opmode == IEEE80211_M_STA) { 2574 2575 lhw = ic->ic_softc; 2576 lvif = VAP_TO_LVIF(vap); 2577 vif = LVIF_TO_VIF(lvif); 2578 2579 /* No need to replicate this in most state handlers. */ 2580 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2581 lkpi_stop_hw_scan(lhw, vif); 2582 2583 s = sta_state_fsm; 2584 2585 } else { 2586 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2587 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2588 return (ENOSYS); 2589 } 2590 2591 error = 0; 2592 for (; s->handler != NULL; s++) { 2593 if (ostate == s->ostate && nstate == s->nstate) { 2594 #ifdef LINUXKPI_DEBUG_80211 2595 if (linuxkpi_debug_80211 & D80211_TRACE) 2596 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2597 " %d (%s): arg %d.\n", __func__, 2598 ostate, ieee80211_state_name[ostate], 2599 nstate, ieee80211_state_name[nstate], arg); 2600 #endif 2601 error = s->handler(vap, nstate, arg); 2602 break; 2603 } 2604 } 2605 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2606 2607 if (s->handler == NULL) { 2608 IMPROVE("turn this into a KASSERT\n"); 2609 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2610 "%d (%s) -> %d (%s)\n", __func__, 2611 ostate, ieee80211_state_name[ostate], 2612 nstate, ieee80211_state_name[nstate]); 2613 return (ENOSYS); 2614 } 2615 2616 if (error == EALREADY) { 2617 #ifdef LINUXKPI_DEBUG_80211 2618 if (linuxkpi_debug_80211 & D80211_TRACE) 2619 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2620 "%d (%s): iv_newstate already handled: %d.\n", 2621 __func__, ostate, ieee80211_state_name[ostate], 2622 nstate, ieee80211_state_name[nstate], error); 2623 #endif 2624 return (0); 2625 } 2626 2627 if (error != 0) { 2628 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2629 "%d (%s) -> %d (%s)\n", __func__, error, 2630 ostate, ieee80211_state_name[ostate], 2631 nstate, ieee80211_state_name[nstate]); 2632 return (error); 2633 } 2634 2635 #ifdef LINUXKPI_DEBUG_80211 2636 if (linuxkpi_debug_80211 & D80211_TRACE) 2637 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2638 "calling net80211 parent\n", 2639 __func__, __LINE__, vap, nstate, arg); 2640 #endif 2641 2642 return (lvif->iv_newstate(vap, nstate, arg)); 2643 } 2644 2645 /* -------------------------------------------------------------------------- */ 2646 2647 /* 2648 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2649 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2650 * new node without us knowing and thus our ni/lsta are out of sync. 2651 */ 2652 static struct ieee80211_node * 2653 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2654 { 2655 struct lkpi_vif *lvif; 2656 struct ieee80211_node *rni; 2657 2658 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2659 2660 lvif = VAP_TO_LVIF(vap); 2661 2662 LKPI_80211_LVIF_LOCK(lvif); 2663 lvif->lvif_bss_synched = false; 2664 LKPI_80211_LVIF_UNLOCK(lvif); 2665 2666 rni = lvif->iv_update_bss(vap, ni); 2667 return (rni); 2668 } 2669 2670 #ifdef LKPI_80211_WME 2671 static int 2672 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2673 { 2674 struct ieee80211com *ic; 2675 struct ieee80211_hw *hw; 2676 struct lkpi_vif *lvif; 2677 struct ieee80211_vif *vif; 2678 struct chanAccParams chp; 2679 struct wmeParams wmeparr[WME_NUM_AC]; 2680 struct ieee80211_tx_queue_params txqp; 2681 enum ieee80211_bss_changed changed; 2682 int error; 2683 uint16_t ac; 2684 2685 IMPROVE(); 2686 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2687 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2688 2689 if (vap == NULL) 2690 return (0); 2691 2692 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2693 return (0); 2694 2695 if (lhw->ops->conf_tx == NULL) 2696 return (0); 2697 2698 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2699 lhw->update_wme = true; 2700 return (0); 2701 } 2702 lhw->update_wme = false; 2703 2704 ic = lhw->ic; 2705 ieee80211_wme_ic_getparams(ic, &chp); 2706 IEEE80211_LOCK(ic); 2707 for (ac = 0; ac < WME_NUM_AC; ac++) 2708 wmeparr[ac] = chp.cap_wmeParams[ac]; 2709 IEEE80211_UNLOCK(ic); 2710 2711 hw = LHW_TO_HW(lhw); 2712 lvif = VAP_TO_LVIF(vap); 2713 vif = LVIF_TO_VIF(lvif); 2714 2715 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2716 LKPI_80211_LHW_LOCK(lhw); 2717 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2718 struct wmeParams *wmep; 2719 2720 wmep = &wmeparr[ac]; 2721 bzero(&txqp, sizeof(txqp)); 2722 txqp.cw_min = wmep->wmep_logcwmin; 2723 txqp.cw_max = wmep->wmep_logcwmax; 2724 txqp.txop = wmep->wmep_txopLimit; 2725 txqp.aifs = wmep->wmep_aifsn; 2726 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2727 if (error != 0) 2728 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2729 __func__, ac, error); 2730 } 2731 LKPI_80211_LHW_UNLOCK(lhw); 2732 changed = BSS_CHANGED_QOS; 2733 if (!planned) 2734 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2735 2736 return (changed); 2737 } 2738 #endif 2739 2740 static int 2741 lkpi_ic_wme_update(struct ieee80211com *ic) 2742 { 2743 #ifdef LKPI_80211_WME 2744 struct ieee80211vap *vap; 2745 struct lkpi_hw *lhw; 2746 2747 IMPROVE("Use the per-VAP callback in net80211."); 2748 vap = TAILQ_FIRST(&ic->ic_vaps); 2749 if (vap == NULL) 2750 return (0); 2751 2752 lhw = ic->ic_softc; 2753 2754 lkpi_wme_update(lhw, vap, false); 2755 #endif 2756 return (0); /* unused */ 2757 } 2758 2759 /* 2760 * Change link-layer address on the vif (if the vap is not started/"UP"). 2761 * This can happen if a user changes 'ether' using ifconfig. 2762 * The code is based on net80211/ieee80211_freebsd.c::wlan_iflladdr() but 2763 * we do use a per-[l]vif event handler to be sure we exist as we 2764 * cannot assume that from every vap derives a vif and we have a hard 2765 * time checking based on net80211 information. 2766 * Should this ever become a real problem we could add a callback function 2767 * to wlan_iflladdr() to be set optionally but that would be for a 2768 * single-consumer (or needs a list) -- was just too complicated for an 2769 * otherwise perfect mechanism FreeBSD already provides. 2770 */ 2771 static void 2772 lkpi_vif_iflladdr(void *arg, struct ifnet *ifp) 2773 { 2774 struct epoch_tracker et; 2775 struct ieee80211_vif *vif; 2776 2777 NET_EPOCH_ENTER(et); 2778 /* NB: identify vap's by if_transmit; left as an extra check. */ 2779 if (if_gettransmitfn(ifp) != ieee80211_vap_transmit || 2780 (if_getflags(ifp) & IFF_UP) != 0) { 2781 NET_EPOCH_EXIT(et); 2782 return; 2783 } 2784 2785 vif = arg; 2786 IEEE80211_ADDR_COPY(vif->bss_conf.addr, if_getlladdr(ifp)); 2787 NET_EPOCH_EXIT(et); 2788 } 2789 2790 static struct ieee80211vap * 2791 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2792 int unit, enum ieee80211_opmode opmode, int flags, 2793 const uint8_t bssid[IEEE80211_ADDR_LEN], 2794 const uint8_t mac[IEEE80211_ADDR_LEN]) 2795 { 2796 struct lkpi_hw *lhw; 2797 struct ieee80211_hw *hw; 2798 struct lkpi_vif *lvif; 2799 struct ieee80211vap *vap; 2800 struct ieee80211_vif *vif; 2801 struct ieee80211_tx_queue_params txqp; 2802 enum ieee80211_bss_changed changed; 2803 size_t len; 2804 int error, i; 2805 uint16_t ac; 2806 2807 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2808 return (NULL); 2809 2810 lhw = ic->ic_softc; 2811 hw = LHW_TO_HW(lhw); 2812 2813 len = sizeof(*lvif); 2814 len += hw->vif_data_size; /* vif->drv_priv */ 2815 2816 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2817 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2818 TAILQ_INIT(&lvif->lsta_head); 2819 lvif->lvif_bss = NULL; 2820 lvif->lvif_bss_synched = false; 2821 vap = LVIF_TO_VAP(lvif); 2822 2823 vif = LVIF_TO_VIF(lvif); 2824 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2825 vif->p2p = false; 2826 vif->probe_req_reg = false; 2827 vif->type = lkpi_opmode_to_vif_type(opmode); 2828 lvif->wdev.iftype = vif->type; 2829 /* Need to fill in other fields as well. */ 2830 IMPROVE(); 2831 2832 /* XXX-BZ hardcoded for now! */ 2833 #if 1 2834 vif->chanctx_conf = NULL; 2835 vif->bss_conf.vif = vif; 2836 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2837 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2838 lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event, 2839 lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY); 2840 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2841 vif->bss_conf.chanreq.oper.width = NL80211_CHAN_WIDTH_20_NOHT; 2842 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2843 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2844 vif->bss_conf.qos = false; 2845 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2846 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2847 vif->cfg.aid = 0; 2848 vif->cfg.assoc = false; 2849 vif->cfg.idle = true; 2850 vif->cfg.ps = false; 2851 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2852 /* 2853 * We need to initialize it to something as the bss_info_changed call 2854 * will try to copy from it in iwlwifi and NULL is a panic. 2855 * We will set the proper one in scan_to_auth() before being assoc. 2856 */ 2857 vif->bss_conf.bssid = ieee80211broadcastaddr; 2858 #endif 2859 #if 0 2860 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2861 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2862 vif->bss_conf.beacon_int = ic->ic_bintval; 2863 /* iwlwifi bug. */ 2864 if (vif->bss_conf.beacon_int < 16) 2865 vif->bss_conf.beacon_int = 16; 2866 #endif 2867 2868 /* Link Config */ 2869 vif->link_conf[0] = &vif->bss_conf; 2870 for (i = 0; i < nitems(vif->link_conf); i++) { 2871 IMPROVE("more than 1 link one day"); 2872 } 2873 2874 /* Setup queue defaults; driver may override in (*add_interface). */ 2875 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2876 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2877 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2878 else if (hw->queues >= IEEE80211_NUM_ACS) 2879 vif->hw_queue[i] = i; 2880 else 2881 vif->hw_queue[i] = 0; 2882 2883 /* Initialize the queue to running. Stopped? */ 2884 lvif->hw_queue_stopped[i] = false; 2885 } 2886 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2887 2888 IMPROVE(); 2889 2890 error = lkpi_80211_mo_start(hw); 2891 if (error != 0) { 2892 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2893 mtx_destroy(&lvif->mtx); 2894 free(lvif, M_80211_VAP); 2895 return (NULL); 2896 } 2897 2898 error = lkpi_80211_mo_add_interface(hw, vif); 2899 if (error != 0) { 2900 IMPROVE(); /* XXX-BZ mo_stop()? */ 2901 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2902 mtx_destroy(&lvif->mtx); 2903 free(lvif, M_80211_VAP); 2904 return (NULL); 2905 } 2906 2907 LKPI_80211_LHW_LVIF_LOCK(lhw); 2908 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2909 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2910 2911 /* Set bss_info. */ 2912 changed = 0; 2913 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2914 2915 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2916 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2917 LKPI_80211_LHW_LOCK(lhw); 2918 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2919 2920 bzero(&txqp, sizeof(txqp)); 2921 txqp.cw_min = 15; 2922 txqp.cw_max = 1023; 2923 txqp.txop = 0; 2924 txqp.aifs = 2; 2925 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2926 if (error != 0) 2927 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2928 __func__, ac, error); 2929 } 2930 LKPI_80211_LHW_UNLOCK(lhw); 2931 changed = BSS_CHANGED_QOS; 2932 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2933 2934 /* Force MC init. */ 2935 lkpi_update_mcast_filter(ic, true); 2936 2937 IMPROVE(); 2938 2939 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2940 2941 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2942 lvif->iv_newstate = vap->iv_newstate; 2943 vap->iv_newstate = lkpi_iv_newstate; 2944 lvif->iv_update_bss = vap->iv_update_bss; 2945 vap->iv_update_bss = lkpi_iv_update_bss; 2946 2947 /* Key management. */ 2948 if (lhw->ops->set_key != NULL) { 2949 #ifdef LKPI_80211_HW_CRYPTO 2950 vap->iv_key_set = lkpi_iv_key_set; 2951 vap->iv_key_delete = lkpi_iv_key_delete; 2952 #endif 2953 } 2954 2955 #ifdef LKPI_80211_HT 2956 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2957 #endif 2958 2959 ieee80211_ratectl_init(vap); 2960 2961 /* Complete setup. */ 2962 ieee80211_vap_attach(vap, ieee80211_media_change, 2963 ieee80211_media_status, mac); 2964 2965 if (hw->max_listen_interval == 0) 2966 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2967 hw->conf.listen_interval = hw->max_listen_interval; 2968 ic->ic_set_channel(ic); 2969 2970 /* XXX-BZ do we need to be able to update these? */ 2971 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2972 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2973 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2974 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2975 /* any others? */ 2976 IMPROVE(); 2977 2978 return (vap); 2979 } 2980 2981 void 2982 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2983 { 2984 2985 wiphy_unregister(hw->wiphy); 2986 linuxkpi_ieee80211_ifdetach(hw); 2987 2988 IMPROVE(); 2989 } 2990 2991 void 2992 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2993 { 2994 2995 TODO(); 2996 } 2997 2998 static void 2999 lkpi_ic_vap_delete(struct ieee80211vap *vap) 3000 { 3001 struct ieee80211com *ic; 3002 struct lkpi_hw *lhw; 3003 struct ieee80211_hw *hw; 3004 struct lkpi_vif *lvif; 3005 struct ieee80211_vif *vif; 3006 3007 lvif = VAP_TO_LVIF(vap); 3008 vif = LVIF_TO_VIF(lvif); 3009 ic = vap->iv_ic; 3010 lhw = ic->ic_softc; 3011 hw = LHW_TO_HW(lhw); 3012 3013 EVENTHANDLER_DEREGISTER(iflladdr_event, lvif->lvif_ifllevent); 3014 3015 LKPI_80211_LHW_LVIF_LOCK(lhw); 3016 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 3017 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3018 3019 ieee80211_ratectl_deinit(vap); 3020 ieee80211_vap_detach(vap); 3021 3022 IMPROVE("clear up other bits in this state"); 3023 3024 lkpi_80211_mo_remove_interface(hw, vif); 3025 3026 /* Single VAP, so we can do this here. */ 3027 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 3028 3029 mtx_destroy(&lvif->mtx); 3030 free(lvif, M_80211_VAP); 3031 } 3032 3033 static void 3034 lkpi_ic_update_mcast(struct ieee80211com *ic) 3035 { 3036 3037 lkpi_update_mcast_filter(ic, false); 3038 TRACEOK(); 3039 } 3040 3041 static void 3042 lkpi_ic_update_promisc(struct ieee80211com *ic) 3043 { 3044 3045 UNIMPLEMENTED; 3046 } 3047 3048 static void 3049 lkpi_ic_update_chw(struct ieee80211com *ic) 3050 { 3051 3052 UNIMPLEMENTED; 3053 } 3054 3055 /* Start / stop device. */ 3056 static void 3057 lkpi_ic_parent(struct ieee80211com *ic) 3058 { 3059 struct lkpi_hw *lhw; 3060 #ifdef HW_START_STOP 3061 struct ieee80211_hw *hw; 3062 int error; 3063 #endif 3064 bool start_all; 3065 3066 IMPROVE(); 3067 3068 lhw = ic->ic_softc; 3069 #ifdef HW_START_STOP 3070 hw = LHW_TO_HW(lhw); 3071 #endif 3072 start_all = false; 3073 3074 /* IEEE80211_UNLOCK(ic); */ 3075 LKPI_80211_LHW_LOCK(lhw); 3076 if (ic->ic_nrunning > 0) { 3077 #ifdef HW_START_STOP 3078 error = lkpi_80211_mo_start(hw); 3079 if (error == 0) 3080 #endif 3081 start_all = true; 3082 } else { 3083 #ifdef HW_START_STOP 3084 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 3085 #endif 3086 } 3087 LKPI_80211_LHW_UNLOCK(lhw); 3088 /* IEEE80211_LOCK(ic); */ 3089 3090 if (start_all) 3091 ieee80211_start_all(ic); 3092 } 3093 3094 bool 3095 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 3096 size_t ie_ids_len) 3097 { 3098 int i; 3099 3100 for (i = 0; i < ie_ids_len; i++) { 3101 if (ie == *ie_ids) 3102 return (true); 3103 } 3104 3105 return (false); 3106 } 3107 3108 /* Return true if skipped; false if error. */ 3109 bool 3110 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 3111 { 3112 size_t x; 3113 uint8_t l; 3114 3115 x = *xp; 3116 3117 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 3118 __func__, x, ies_len, ies)); 3119 l = ies[x + 1]; 3120 x += 2 + l; 3121 3122 if (x > ies_len) 3123 return (false); 3124 3125 *xp = x; 3126 return (true); 3127 } 3128 3129 static uint8_t * 3130 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 3131 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 3132 { 3133 struct ieee80211_supported_band *supband; 3134 struct linuxkpi_ieee80211_channel *channels; 3135 struct ieee80211com *ic; 3136 const struct ieee80211_channel *chan; 3137 const struct ieee80211_rateset *rs; 3138 uint8_t *pb; 3139 int band, i; 3140 3141 ic = vap->iv_ic; 3142 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3143 if ((band_mask & (1 << band)) == 0) 3144 continue; 3145 3146 supband = hw->wiphy->bands[band]; 3147 /* 3148 * This should not happen; 3149 * band_mask is a bitmask of valid bands to scan on. 3150 */ 3151 if (supband == NULL || supband->n_channels == 0) 3152 continue; 3153 3154 /* Find a first channel to get the mode and rates from. */ 3155 channels = supband->channels; 3156 chan = NULL; 3157 for (i = 0; i < supband->n_channels; i++) { 3158 3159 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3160 continue; 3161 3162 chan = ieee80211_find_channel(ic, 3163 channels[i].center_freq, 0); 3164 if (chan != NULL) 3165 break; 3166 } 3167 3168 /* This really should not happen. */ 3169 if (chan == NULL) 3170 continue; 3171 3172 pb = p; 3173 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3174 p = ieee80211_add_rates(p, rs); 3175 p = ieee80211_add_xrates(p, rs); 3176 3177 #if defined(LKPI_80211_HT) 3178 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3179 struct ieee80211_channel *c; 3180 3181 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3182 vap->iv_flags_ht); 3183 p = ieee80211_add_htcap_ch(p, vap, c); 3184 } 3185 #endif 3186 #if defined(LKPI_80211_VHT) 3187 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3188 struct ieee80211_channel *c; 3189 3190 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3191 vap->iv_flags_ht); 3192 c = ieee80211_vht_adjust_channel(ic, c, 3193 vap->iv_vht_flags); 3194 p = ieee80211_add_vhtcap_ch(p, vap, c); 3195 } 3196 #endif 3197 3198 scan_ies->ies[band] = pb; 3199 scan_ies->len[band] = p - pb; 3200 } 3201 3202 /* Add common_ies */ 3203 pb = p; 3204 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3205 vap->iv_wpa_ie != NULL) { 3206 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3207 p += 2 + vap->iv_wpa_ie[1]; 3208 } 3209 if (vap->iv_appie_probereq != NULL) { 3210 memcpy(p, vap->iv_appie_probereq->ie_data, 3211 vap->iv_appie_probereq->ie_len); 3212 p += vap->iv_appie_probereq->ie_len; 3213 } 3214 scan_ies->common_ies = pb; 3215 scan_ies->common_ie_len = p - pb; 3216 3217 return (p); 3218 } 3219 3220 static void 3221 lkpi_ic_scan_start(struct ieee80211com *ic) 3222 { 3223 struct lkpi_hw *lhw; 3224 struct ieee80211_hw *hw; 3225 struct lkpi_vif *lvif; 3226 struct ieee80211_vif *vif; 3227 struct ieee80211_scan_state *ss; 3228 struct ieee80211vap *vap; 3229 int error; 3230 bool is_hw_scan; 3231 3232 lhw = ic->ic_softc; 3233 LKPI_80211_LHW_SCAN_LOCK(lhw); 3234 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3235 /* A scan is still running. */ 3236 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3237 return; 3238 } 3239 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3240 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3241 3242 ss = ic->ic_scan; 3243 vap = ss->ss_vap; 3244 if (vap->iv_state != IEEE80211_S_SCAN) { 3245 IMPROVE("We need to be able to scan if not in S_SCAN"); 3246 return; 3247 } 3248 3249 hw = LHW_TO_HW(lhw); 3250 if (!is_hw_scan) { 3251 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3252 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3253 sw_scan: 3254 lvif = VAP_TO_LVIF(vap); 3255 vif = LVIF_TO_VIF(lvif); 3256 3257 if (vap->iv_state == IEEE80211_S_SCAN) 3258 lkpi_hw_conf_idle(hw, false); 3259 3260 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3261 /* net80211::scan_start() handled PS for us. */ 3262 IMPROVE(); 3263 /* XXX Also means it is too late to flush queues? 3264 * need to check iv_sta_ps or overload? */ 3265 /* XXX want to adjust ss end time/ maxdwell? */ 3266 3267 } else { 3268 struct ieee80211_channel *c; 3269 struct ieee80211_scan_request *hw_req; 3270 struct linuxkpi_ieee80211_channel *lc, **cpp; 3271 struct cfg80211_ssid *ssids; 3272 struct cfg80211_scan_6ghz_params *s6gp; 3273 size_t chan_len, nchan, ssids_len, s6ghzlen; 3274 int band, i, ssid_count, common_ie_len; 3275 uint32_t band_mask; 3276 uint8_t *ie, *ieend; 3277 bool running; 3278 3279 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3280 ssids_len = ssid_count * sizeof(*ssids); 3281 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3282 3283 band_mask = 0; 3284 nchan = 0; 3285 for (i = ss->ss_next; i < ss->ss_last; i++) { 3286 nchan++; 3287 band = lkpi_net80211_chan_to_nl80211_band( 3288 ss->ss_chans[ss->ss_next + i]); 3289 band_mask |= (1 << band); 3290 } 3291 3292 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3293 IMPROVE("individual band scans not yet supported, only scanning first band"); 3294 /* In theory net80211 should drive this. */ 3295 /* Probably we need to add local logic for now; 3296 * need to deal with scan_complete 3297 * and cancel_scan and keep local state. 3298 * Also cut the nchan down above. 3299 */ 3300 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3301 } 3302 3303 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3304 3305 common_ie_len = 0; 3306 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3307 vap->iv_wpa_ie != NULL) 3308 common_ie_len += vap->iv_wpa_ie[1]; 3309 if (vap->iv_appie_probereq != NULL) 3310 common_ie_len += vap->iv_appie_probereq->ie_len; 3311 3312 /* We would love to check this at an earlier stage... */ 3313 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3314 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3315 "wiphy->max_scan_ie_len %d\n", __func__, 3316 common_ie_len, hw->wiphy->max_scan_ie_len); 3317 } 3318 3319 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3320 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3321 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3322 3323 hw_req->req.flags = 0; /* XXX ??? */ 3324 /* hw_req->req.wdev */ 3325 hw_req->req.wiphy = hw->wiphy; 3326 hw_req->req.no_cck = false; /* XXX */ 3327 #if 0 3328 /* This seems to pessimise default scanning behaviour. */ 3329 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3330 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3331 #endif 3332 #ifdef __notyet__ 3333 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3334 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3335 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3336 #endif 3337 eth_broadcast_addr(hw_req->req.bssid); 3338 3339 hw_req->req.n_channels = nchan; 3340 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3341 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3342 for (i = 0; i < nchan; i++) { 3343 *(cpp + i) = 3344 (struct linuxkpi_ieee80211_channel *)(lc + i); 3345 } 3346 for (i = 0; i < nchan; i++) { 3347 c = ss->ss_chans[ss->ss_next + i]; 3348 3349 lc->hw_value = c->ic_ieee; 3350 lc->center_freq = c->ic_freq; /* XXX */ 3351 /* lc->flags */ 3352 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3353 lc->max_power = c->ic_maxpower; 3354 /* lc-> ... */ 3355 lc++; 3356 } 3357 3358 hw_req->req.n_ssids = ssid_count; 3359 if (hw_req->req.n_ssids > 0) { 3360 ssids = (struct cfg80211_ssid *)lc; 3361 hw_req->req.ssids = ssids; 3362 for (i = 0; i < ssid_count; i++) { 3363 ssids->ssid_len = ss->ss_ssid[i].len; 3364 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3365 ss->ss_ssid[i].len); 3366 ssids++; 3367 } 3368 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3369 } else { 3370 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3371 } 3372 3373 /* 6GHz one day. */ 3374 hw_req->req.n_6ghz_params = 0; 3375 hw_req->req.scan_6ghz_params = NULL; 3376 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3377 /* s6gp->... */ 3378 3379 ie = ieend = (uint8_t *)s6gp; 3380 /* Copy per-band IEs, copy common IEs */ 3381 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3382 hw_req->req.ie = ie; 3383 hw_req->req.ie_len = ieend - ie; 3384 3385 lvif = VAP_TO_LVIF(vap); 3386 vif = LVIF_TO_VIF(lvif); 3387 3388 LKPI_80211_LHW_SCAN_LOCK(lhw); 3389 /* Re-check under lock. */ 3390 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3391 if (!running) { 3392 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3393 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3394 3395 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3396 lhw->hw_req = hw_req; 3397 } 3398 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3399 if (running) { 3400 free(hw_req, M_LKPI80211); 3401 return; 3402 } 3403 3404 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3405 if (error != 0) { 3406 ieee80211_cancel_scan(vap); 3407 3408 /* 3409 * ieee80211_scan_completed must be called in either 3410 * case of error or none. So let the free happen there 3411 * and only there. 3412 * That would be fine in theory but in practice drivers 3413 * behave differently: 3414 * ath10k does not return hw_scan until after scan_complete 3415 * and can then still return an error. 3416 * rtw88 can return 1 or -EBUSY without scan_complete 3417 * iwlwifi can return various errors before scan starts 3418 * ... 3419 * So we cannot rely on that behaviour and have to check 3420 * and balance between both code paths. 3421 */ 3422 LKPI_80211_LHW_SCAN_LOCK(lhw); 3423 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3424 free(lhw->hw_req, M_LKPI80211); 3425 lhw->hw_req = NULL; 3426 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3427 } 3428 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3429 3430 /* 3431 * XXX-SIGH magic number. 3432 * rtw88 has a magic "return 1" if offloading scan is 3433 * not possible. Fall back to sw scan in that case. 3434 */ 3435 if (error == 1) { 3436 LKPI_80211_LHW_SCAN_LOCK(lhw); 3437 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3438 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3439 /* 3440 * XXX If we clear this now and later a driver 3441 * thinks it * can do a hw_scan again, we will 3442 * currently not re-enable it? 3443 */ 3444 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3445 ieee80211_start_scan(vap, 3446 IEEE80211_SCAN_ACTIVE | 3447 IEEE80211_SCAN_NOPICK | 3448 IEEE80211_SCAN_ONCE, 3449 IEEE80211_SCAN_FOREVER, 3450 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3451 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3452 vap->iv_des_nssid, vap->iv_des_ssid); 3453 goto sw_scan; 3454 } 3455 3456 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3457 __func__, error); 3458 } 3459 } 3460 } 3461 3462 static void 3463 lkpi_ic_scan_end(struct ieee80211com *ic) 3464 { 3465 struct lkpi_hw *lhw; 3466 bool is_hw_scan; 3467 3468 lhw = ic->ic_softc; 3469 LKPI_80211_LHW_SCAN_LOCK(lhw); 3470 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3471 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3472 return; 3473 } 3474 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3475 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3476 3477 if (!is_hw_scan) { 3478 struct ieee80211_scan_state *ss; 3479 struct ieee80211vap *vap; 3480 struct ieee80211_hw *hw; 3481 struct lkpi_vif *lvif; 3482 struct ieee80211_vif *vif; 3483 3484 ss = ic->ic_scan; 3485 vap = ss->ss_vap; 3486 hw = LHW_TO_HW(lhw); 3487 lvif = VAP_TO_LVIF(vap); 3488 vif = LVIF_TO_VIF(lvif); 3489 3490 lkpi_80211_mo_sw_scan_complete(hw, vif); 3491 3492 /* Send PS to stop buffering if n80211 does not for us? */ 3493 3494 if (vap->iv_state == IEEE80211_S_SCAN) 3495 lkpi_hw_conf_idle(hw, true); 3496 } 3497 } 3498 3499 static void 3500 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3501 unsigned long maxdwell) 3502 { 3503 struct lkpi_hw *lhw; 3504 bool is_hw_scan; 3505 3506 lhw = ss->ss_ic->ic_softc; 3507 LKPI_80211_LHW_SCAN_LOCK(lhw); 3508 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3509 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3510 if (!is_hw_scan) 3511 lhw->ic_scan_curchan(ss, maxdwell); 3512 } 3513 3514 static void 3515 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3516 { 3517 struct lkpi_hw *lhw; 3518 bool is_hw_scan; 3519 3520 lhw = ss->ss_ic->ic_softc; 3521 LKPI_80211_LHW_SCAN_LOCK(lhw); 3522 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3523 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3524 if (!is_hw_scan) 3525 lhw->ic_scan_mindwell(ss); 3526 } 3527 3528 static void 3529 lkpi_ic_set_channel(struct ieee80211com *ic) 3530 { 3531 struct lkpi_hw *lhw; 3532 struct ieee80211_hw *hw; 3533 struct ieee80211_channel *c; 3534 struct linuxkpi_ieee80211_channel *chan; 3535 int error; 3536 bool hw_scan_running; 3537 3538 lhw = ic->ic_softc; 3539 3540 /* If we do not support (*config)() save us the work. */ 3541 if (lhw->ops->config == NULL) 3542 return; 3543 3544 /* If we have a hw_scan running do not switch channels. */ 3545 LKPI_80211_LHW_SCAN_LOCK(lhw); 3546 hw_scan_running = 3547 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3548 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3549 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3550 if (hw_scan_running) 3551 return; 3552 3553 c = ic->ic_curchan; 3554 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3555 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3556 c, lhw->ops->config); 3557 return; 3558 } 3559 3560 chan = lkpi_find_lkpi80211_chan(lhw, c); 3561 if (chan == NULL) { 3562 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3563 c, chan); 3564 return; 3565 } 3566 3567 /* XXX max power for scanning? */ 3568 IMPROVE(); 3569 3570 hw = LHW_TO_HW(lhw); 3571 cfg80211_chandef_create(&hw->conf.chandef, chan, 3572 #ifdef LKPI_80211_HT 3573 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3574 #endif 3575 NL80211_CHAN_NO_HT); 3576 3577 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3578 if (error != 0 && error != EOPNOTSUPP) { 3579 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3580 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3581 /* XXX should we unroll to the previous chandef? */ 3582 IMPROVE(); 3583 } else { 3584 /* Update radiotap channels as well. */ 3585 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3586 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3587 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3588 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3589 } 3590 3591 /* Currently PS is hard coded off! Not sure it belongs here. */ 3592 IMPROVE(); 3593 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3594 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3595 hw->conf.flags &= ~IEEE80211_CONF_PS; 3596 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3597 if (error != 0 && error != EOPNOTSUPP) 3598 ic_printf(ic, "ERROR: %s: config %#0x returned " 3599 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3600 error); 3601 } 3602 } 3603 3604 static struct ieee80211_node * 3605 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3606 const uint8_t mac[IEEE80211_ADDR_LEN]) 3607 { 3608 struct ieee80211com *ic; 3609 struct lkpi_hw *lhw; 3610 struct ieee80211_node *ni; 3611 struct ieee80211_hw *hw; 3612 struct lkpi_sta *lsta; 3613 3614 ic = vap->iv_ic; 3615 lhw = ic->ic_softc; 3616 3617 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3618 if (lhw->ic_node_alloc == NULL) 3619 return (NULL); 3620 3621 ni = lhw->ic_node_alloc(vap, mac); 3622 if (ni == NULL) 3623 return (NULL); 3624 3625 hw = LHW_TO_HW(lhw); 3626 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3627 if (lsta == NULL) { 3628 if (lhw->ic_node_free != NULL) 3629 lhw->ic_node_free(ni); 3630 return (NULL); 3631 } 3632 3633 return (ni); 3634 } 3635 3636 static int 3637 lkpi_ic_node_init(struct ieee80211_node *ni) 3638 { 3639 struct ieee80211com *ic; 3640 struct lkpi_hw *lhw; 3641 int error; 3642 3643 ic = ni->ni_ic; 3644 lhw = ic->ic_softc; 3645 3646 if (lhw->ic_node_init != NULL) { 3647 error = lhw->ic_node_init(ni); 3648 if (error != 0) 3649 return (error); 3650 } 3651 3652 /* XXX-BZ Sync other state over. */ 3653 IMPROVE(); 3654 3655 return (0); 3656 } 3657 3658 static void 3659 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3660 { 3661 struct ieee80211com *ic; 3662 struct lkpi_hw *lhw; 3663 3664 ic = ni->ni_ic; 3665 lhw = ic->ic_softc; 3666 3667 /* XXX-BZ remove from driver, ... */ 3668 IMPROVE(); 3669 3670 if (lhw->ic_node_cleanup != NULL) 3671 lhw->ic_node_cleanup(ni); 3672 } 3673 3674 static void 3675 lkpi_ic_node_free(struct ieee80211_node *ni) 3676 { 3677 struct ieee80211com *ic; 3678 struct lkpi_hw *lhw; 3679 struct lkpi_sta *lsta; 3680 3681 ic = ni->ni_ic; 3682 lhw = ic->ic_softc; 3683 lsta = ni->ni_drv_data; 3684 3685 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3686 3687 /* 3688 * Pass in the original ni just in case of error we could check that 3689 * it is the same as lsta->ni. 3690 */ 3691 lkpi_lsta_free(lsta, ni); 3692 3693 if (lhw->ic_node_free != NULL) 3694 lhw->ic_node_free(ni); 3695 } 3696 3697 static int 3698 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3699 const struct ieee80211_bpf_params *params __unused) 3700 { 3701 struct lkpi_sta *lsta; 3702 3703 lsta = ni->ni_drv_data; 3704 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3705 if (!lsta->added_to_drv || !lsta->txq_ready) { 3706 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3707 /* 3708 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3709 * ieee80211_raw_output() does that in case of error). 3710 */ 3711 m_free(m); 3712 return (ENETDOWN); 3713 } 3714 3715 /* Queue the packet and enqueue the task to handle it. */ 3716 mbufq_enqueue(&lsta->txq, m); 3717 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3718 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3719 3720 #ifdef LINUXKPI_DEBUG_80211 3721 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3722 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3723 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3724 mbufq_len(&lsta->txq)); 3725 #endif 3726 3727 return (0); 3728 } 3729 3730 static void 3731 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3732 { 3733 struct ieee80211_node *ni; 3734 #ifndef LKPI_80211_HW_CRYPTO 3735 struct ieee80211_frame *wh; 3736 #endif 3737 struct ieee80211_key *k; 3738 struct sk_buff *skb; 3739 struct ieee80211com *ic; 3740 struct lkpi_hw *lhw; 3741 struct ieee80211_hw *hw; 3742 struct lkpi_vif *lvif; 3743 struct ieee80211_vif *vif; 3744 struct ieee80211_channel *c; 3745 struct ieee80211_tx_control control; 3746 struct ieee80211_tx_info *info; 3747 struct ieee80211_sta *sta; 3748 struct ieee80211_hdr *hdr; 3749 struct lkpi_txq *ltxq; 3750 void *buf; 3751 uint8_t ac, tid; 3752 3753 M_ASSERTPKTHDR(m); 3754 #ifdef LINUXKPI_DEBUG_80211 3755 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3756 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3757 #endif 3758 3759 ni = lsta->ni; 3760 k = NULL; 3761 #ifndef LKPI_80211_HW_CRYPTO 3762 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3763 wh = mtod(m, struct ieee80211_frame *); 3764 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3765 /* Retrieve key for TX && do software encryption. */ 3766 k = ieee80211_crypto_encap(ni, m); 3767 if (k == NULL) { 3768 ieee80211_free_node(ni); 3769 m_freem(m); 3770 return; 3771 } 3772 } 3773 #endif 3774 3775 ic = ni->ni_ic; 3776 lhw = ic->ic_softc; 3777 hw = LHW_TO_HW(lhw); 3778 c = ni->ni_chan; 3779 3780 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3781 struct lkpi_radiotap_tx_hdr *rtap; 3782 3783 rtap = &lhw->rtap_tx; 3784 rtap->wt_flags = 0; 3785 if (k != NULL) 3786 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3787 if (m->m_flags & M_FRAG) 3788 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3789 IMPROVE(); 3790 rtap->wt_rate = 0; 3791 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3792 rtap->wt_chan_freq = htole16(c->ic_freq); 3793 rtap->wt_chan_flags = htole16(c->ic_flags); 3794 } 3795 3796 ieee80211_radiotap_tx(ni->ni_vap, m); 3797 } 3798 3799 /* 3800 * net80211 should handle hw->extra_tx_headroom. 3801 * Though for as long as we are copying we don't mind. 3802 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3803 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3804 */ 3805 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3806 if (skb == NULL) { 3807 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3808 ieee80211_free_node(ni); 3809 m_freem(m); 3810 return; 3811 } 3812 skb_reserve(skb, hw->extra_tx_headroom); 3813 3814 /* XXX-BZ we need a SKB version understanding mbuf. */ 3815 /* Save the mbuf for ieee80211_tx_complete(). */ 3816 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3817 skb->m = m; 3818 #if 0 3819 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3820 #else 3821 buf = skb_put(skb, m->m_pkthdr.len); 3822 m_copydata(m, 0, m->m_pkthdr.len, buf); 3823 #endif 3824 /* Save the ni. */ 3825 m->m_pkthdr.PH_loc.ptr = ni; 3826 3827 lvif = VAP_TO_LVIF(ni->ni_vap); 3828 vif = LVIF_TO_VIF(lvif); 3829 3830 hdr = (void *)skb->data; 3831 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3832 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3833 if (!ieee80211_is_data(hdr->frame_control)) { 3834 /* MGMT and CTRL frames go on TID 7/VO. */ 3835 skb->priority = 7; 3836 ac = IEEE80211_AC_VO; 3837 } else { 3838 /* Other non-QOS traffic goes to BE. */ 3839 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3840 skb->priority = 0; 3841 ac = IEEE80211_AC_BE; 3842 } 3843 } else { 3844 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3845 ac = ieee80211e_up_to_ac[tid & 7]; 3846 } 3847 skb_set_queue_mapping(skb, ac); 3848 3849 info = IEEE80211_SKB_CB(skb); 3850 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3851 /* Slight delay; probably only happens on scanning so fine? */ 3852 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3853 c = ic->ic_curchan; 3854 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3855 info->hw_queue = vif->hw_queue[ac]; 3856 if (m->m_flags & M_EAPOL) 3857 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3858 info->control.vif = vif; 3859 /* XXX-BZ info->control.rates */ 3860 #ifdef __notyet__ 3861 #ifdef LKPI_80211_HT 3862 info->control.rts_cts_rate_idx= 3863 info->control.use_rts= /* RTS */ 3864 info->control.use_cts_prot= /* RTS/CTS*/ 3865 #endif 3866 #endif 3867 3868 sta = LSTA_TO_STA(lsta); 3869 #ifdef LKPI_80211_HW_CRYPTO 3870 info->control.hw_key = lsta->kc; 3871 #endif 3872 3873 IMPROVE(); 3874 3875 ltxq = NULL; 3876 if (!ieee80211_is_data_present(hdr->frame_control)) { 3877 if (vif->type == NL80211_IFTYPE_STATION && 3878 lsta->added_to_drv && 3879 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3880 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3881 } else if (lsta->added_to_drv && 3882 sta->txq[skb->priority] != NULL) { 3883 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3884 } 3885 if (ltxq == NULL) 3886 goto ops_tx; 3887 3888 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3889 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3890 3891 LKPI_80211_LTXQ_LOCK(ltxq); 3892 skb_queue_tail(<xq->skbq, skb); 3893 #ifdef LINUXKPI_DEBUG_80211 3894 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3895 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3896 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3897 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3898 __func__, __LINE__, 3899 curthread->td_tid, (unsigned int)ticks, 3900 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3901 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3902 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3903 #endif 3904 LKPI_80211_LTXQ_UNLOCK(ltxq); 3905 LKPI_80211_LHW_LOCK(lhw); 3906 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3907 LKPI_80211_LHW_UNLOCK(lhw); 3908 return; 3909 3910 ops_tx: 3911 #ifdef LINUXKPI_DEBUG_80211 3912 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3913 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3914 "TX ac %d prio %u qmap %u\n", 3915 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3916 skb, ac, skb->priority, skb->qmap); 3917 #endif 3918 memset(&control, 0, sizeof(control)); 3919 control.sta = sta; 3920 LKPI_80211_LHW_LOCK(lhw); 3921 lkpi_80211_mo_tx(hw, &control, skb); 3922 LKPI_80211_LHW_UNLOCK(lhw); 3923 } 3924 3925 static void 3926 lkpi_80211_txq_task(void *ctx, int pending) 3927 { 3928 struct lkpi_sta *lsta; 3929 struct mbufq mq; 3930 struct mbuf *m; 3931 bool shall_tx; 3932 3933 lsta = ctx; 3934 3935 #ifdef LINUXKPI_DEBUG_80211 3936 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3937 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3938 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3939 pending, mbufq_len(&lsta->txq)); 3940 #endif 3941 3942 mbufq_init(&mq, IFQ_MAXLEN); 3943 3944 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3945 /* 3946 * Do not re-check lsta->txq_ready here; we may have a pending 3947 * disassoc/deauth frame still. On the contrary if txq_ready is 3948 * false we do not have a valid sta anymore in the firmware so no 3949 * point to try to TX. 3950 * We also use txq_ready as a semaphore and will drain the txq manually 3951 * if needed on our way towards SCAN/INIT in the state machine. 3952 */ 3953 shall_tx = lsta->added_to_drv && lsta->txq_ready; 3954 if (__predict_true(shall_tx)) 3955 mbufq_concat(&mq, &lsta->txq); 3956 /* 3957 * else a state change will push the packets out manually or 3958 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 3959 */ 3960 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3961 3962 m = mbufq_dequeue(&mq); 3963 while (m != NULL) { 3964 lkpi_80211_txq_tx_one(lsta, m); 3965 m = mbufq_dequeue(&mq); 3966 } 3967 } 3968 3969 static int 3970 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3971 { 3972 3973 /* XXX TODO */ 3974 IMPROVE(); 3975 3976 /* Quick and dirty cheating hack. */ 3977 struct ieee80211_node *ni; 3978 3979 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3980 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3981 } 3982 3983 #ifdef LKPI_80211_HT 3984 static int 3985 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3986 const uint8_t *frm, const uint8_t *efrm) 3987 { 3988 struct ieee80211com *ic; 3989 struct lkpi_hw *lhw; 3990 3991 ic = ni->ni_ic; 3992 lhw = ic->ic_softc; 3993 3994 IMPROVE_HT("recv_action called; nothing to do in lkpi; make debugging"); 3995 3996 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3997 } 3998 3999 static int 4000 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 4001 { 4002 struct ieee80211com *ic; 4003 struct lkpi_hw *lhw; 4004 4005 ic = ni->ni_ic; 4006 lhw = ic->ic_softc; 4007 4008 IMPROVE_HT("send_action called; nothing to do in lkpi; make debugging"); 4009 4010 return (lhw->ic_send_action(ni, category, action, sa)); 4011 } 4012 4013 4014 static int 4015 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4016 { 4017 struct ieee80211com *ic; 4018 struct lkpi_hw *lhw; 4019 4020 ic = ni->ni_ic; 4021 lhw = ic->ic_softc; 4022 4023 IMPROVE_HT("ieee80211_ampdu_enable called; nothing to do in lkpi for now; make debugging"); 4024 4025 return (lhw->ic_ampdu_enable(ni, tap)); 4026 } 4027 4028 /* 4029 * (*ic_addba_request)() is called by ieee80211_ampdu_request() before 4030 * calling send_action(CAT_BA, BA_ADDBA_REQUEST). 4031 * 4032 * NB: returns 0 on ERROR! 4033 */ 4034 static int 4035 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4036 int dialogtoken, int baparamset, int batimeout) 4037 { 4038 struct ieee80211com *ic; 4039 struct lkpi_hw *lhw; 4040 struct ieee80211_hw *hw; 4041 struct ieee80211vap *vap; 4042 struct lkpi_vif *lvif; 4043 struct ieee80211_vif *vif; 4044 struct lkpi_sta *lsta; 4045 struct ieee80211_sta *sta; 4046 struct ieee80211_ampdu_params params = { }; 4047 int error; 4048 4049 ic = ni->ni_ic; 4050 lhw = ic->ic_softc; 4051 hw = LHW_TO_HW(lhw); 4052 vap = ni->ni_vap; 4053 lvif = VAP_TO_LVIF(vap); 4054 vif = LVIF_TO_VIF(lvif); 4055 lsta = ni->ni_drv_data; 4056 sta = LSTA_TO_STA(lsta); 4057 4058 if (!lsta->added_to_drv) { 4059 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 4060 __func__, lsta, ni, sta); 4061 return (0); 4062 } 4063 4064 params.sta = sta; 4065 params.action = IEEE80211_AMPDU_TX_START; 4066 /* Keep 0 here! */ 4067 params.buf_size = 0; 4068 params.timeout = 0; 4069 params.ssn = tap->txa_start & (IEEE80211_SEQ_RANGE-1); 4070 params.tid = tap->txa_tid; 4071 params.amsdu = false; 4072 4073 IEEE80211_UNLOCK(ic); 4074 LKPI_80211_LHW_LOCK(lhw); 4075 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4076 LKPI_80211_LHW_UNLOCK(lhw); 4077 IEEE80211_LOCK(ic); 4078 if (error != 0) { 4079 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 4080 __func__, error, ni, tap); 4081 return (0); 4082 } 4083 4084 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 4085 } 4086 4087 /* 4088 * (*ic_addba_response)() is called from ht_recv_action_ba_addba_response() 4089 * and calls the default ieee80211_addba_response() which always returns 1. 4090 * 4091 * NB: No error checking in net80211! 4092 * Staying with 0 is an error. 4093 */ 4094 static int 4095 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4096 int status, int baparamset, int batimeout) 4097 { 4098 struct ieee80211com *ic; 4099 struct lkpi_hw *lhw; 4100 struct ieee80211_hw *hw; 4101 struct ieee80211vap *vap; 4102 struct lkpi_vif *lvif; 4103 struct ieee80211_vif *vif; 4104 struct lkpi_sta *lsta; 4105 struct ieee80211_sta *sta; 4106 struct ieee80211_ampdu_params params = { }; 4107 int error; 4108 4109 ic = ni->ni_ic; 4110 lhw = ic->ic_softc; 4111 hw = LHW_TO_HW(lhw); 4112 vap = ni->ni_vap; 4113 lvif = VAP_TO_LVIF(vap); 4114 vif = LVIF_TO_VIF(lvif); 4115 lsta = ni->ni_drv_data; 4116 sta = LSTA_TO_STA(lsta); 4117 4118 if (!lsta->added_to_drv) { 4119 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 4120 __func__, lsta, ni, sta); 4121 return (0); 4122 } 4123 4124 if (status == IEEE80211_STATUS_SUCCESS) { 4125 params.sta = sta; 4126 params.action = IEEE80211_AMPDU_TX_OPERATIONAL; 4127 params.buf_size = tap->txa_wnd; 4128 params.timeout = 0; 4129 params.ssn = 0; 4130 params.tid = tap->txa_tid; 4131 if ((tap->txa_flags & IEEE80211_AGGR_AMSDU) != 0) 4132 params.amsdu = true; 4133 else 4134 params.amsdu = false; 4135 } else { 4136 /* We need to free the allocated resources. */ 4137 params.sta = sta; 4138 switch (status) { 4139 /* params.action = FLUSH, FLUSH_CONT */ 4140 default: 4141 params.action = IEEE80211_AMPDU_TX_STOP_CONT; 4142 break; 4143 } 4144 params.buf_size = 0; 4145 params.timeout = 0; 4146 params.ssn = 0; 4147 params.tid = tap->txa_tid; 4148 params.amsdu = false; 4149 } 4150 4151 IEEE80211_UNLOCK(ic); 4152 LKPI_80211_LHW_LOCK(lhw); 4153 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4154 LKPI_80211_LHW_UNLOCK(lhw); 4155 IEEE80211_LOCK(ic); 4156 if (error != 0) { 4157 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 4158 __func__, error, ni, tap); 4159 return (0); 4160 } 4161 4162 IMPROVE_HT("who unleashes the TXQ? and when?, do we need to ni->ni_txseqs[tid] = tap->txa_start & 0xfff;"); 4163 4164 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 4165 } 4166 4167 /* 4168 * (*ic_addba_stop)() is called from ampdu_tx_stop(), ht_recv_action_ba_delba(), 4169 * and ieee80211_ampdu_stop() and calls the default ieee80211_addba_stop(). 4170 */ 4171 static void 4172 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4173 { 4174 struct ieee80211com *ic; 4175 struct lkpi_hw *lhw; 4176 struct ieee80211_hw *hw; 4177 struct ieee80211vap *vap; 4178 struct lkpi_vif *lvif; 4179 struct ieee80211_vif *vif; 4180 struct lkpi_sta *lsta; 4181 struct ieee80211_sta *sta; 4182 struct ieee80211_ampdu_params params = { }; 4183 int error; 4184 4185 ic = ni->ni_ic; 4186 lhw = ic->ic_softc; 4187 hw = LHW_TO_HW(lhw); 4188 vap = ni->ni_vap; 4189 lvif = VAP_TO_LVIF(vap); 4190 vif = LVIF_TO_VIF(lvif); 4191 lsta = ni->ni_drv_data; 4192 sta = LSTA_TO_STA(lsta); 4193 4194 if (!lsta->added_to_drv) { 4195 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 4196 __func__, lsta, ni, sta); 4197 goto n80211; 4198 } 4199 4200 /* We need to free the allocated resources. */ 4201 params.sta = sta; 4202 IMPROVE("net80211 does not provide a reason to us"); 4203 params.action = IEEE80211_AMPDU_TX_STOP_CONT; /* params.action = FLUSH, FLUSH_CONT */ 4204 params.buf_size = 0; 4205 params.timeout = 0; 4206 params.ssn = 0; 4207 params.tid = tap->txa_tid; 4208 params.amsdu = false; 4209 4210 IEEE80211_UNLOCK(ic); 4211 LKPI_80211_LHW_LOCK(lhw); 4212 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4213 LKPI_80211_LHW_UNLOCK(lhw); 4214 IEEE80211_LOCK(ic); 4215 if (error != 0) { 4216 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 4217 __func__, error, ni, tap); 4218 goto n80211; 4219 } 4220 4221 IMPROVE_HT("anyting else?"); 4222 4223 n80211: 4224 lhw->ic_addba_stop(ni, tap); 4225 } 4226 4227 static void 4228 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4229 { 4230 struct ieee80211com *ic; 4231 struct lkpi_hw *lhw; 4232 4233 ic = ni->ni_ic; 4234 lhw = ic->ic_softc; 4235 4236 IMPROVE_HT(); 4237 4238 lhw->ic_addba_response_timeout(ni, tap); 4239 } 4240 4241 static void 4242 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4243 int status) 4244 { 4245 struct ieee80211com *ic; 4246 struct lkpi_hw *lhw; 4247 4248 ic = ni->ni_ic; 4249 lhw = ic->ic_softc; 4250 4251 IMPROVE_HT(); 4252 4253 lhw->ic_bar_response(ni, tap, status); 4254 } 4255 4256 static int 4257 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 4258 int baparamset, int batimeout, int baseqctl) 4259 { 4260 struct ieee80211com *ic; 4261 struct lkpi_hw *lhw; 4262 struct ieee80211_hw *hw; 4263 struct ieee80211vap *vap; 4264 struct lkpi_vif *lvif; 4265 struct ieee80211_vif *vif; 4266 struct lkpi_sta *lsta; 4267 struct ieee80211_sta *sta; 4268 struct ieee80211_ampdu_params params = { }; 4269 int error; 4270 4271 ic = ni->ni_ic; 4272 lhw = ic->ic_softc; 4273 hw = LHW_TO_HW(lhw); 4274 vap = ni->ni_vap; 4275 lvif = VAP_TO_LVIF(vap); 4276 vif = LVIF_TO_VIF(lvif); 4277 lsta = ni->ni_drv_data; 4278 sta = LSTA_TO_STA(lsta); 4279 4280 IEEE80211_UNLOCK_ASSERT(ic); 4281 4282 if (!lsta->added_to_drv) { 4283 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 4284 __func__, lsta, ni, vap, sta); 4285 return (-ENXIO); 4286 } 4287 4288 params.sta = sta; 4289 params.action = IEEE80211_AMPDU_RX_START; 4290 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 4291 if (params.buf_size == 0) 4292 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 4293 else 4294 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 4295 if (hw->max_rx_aggregation_subframes > 0 && 4296 params.buf_size > hw->max_rx_aggregation_subframes) 4297 params.buf_size = hw->max_rx_aggregation_subframes; 4298 params.timeout = le16toh(batimeout); 4299 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 4300 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 4301 4302 /* Based on net80211::ampdu_rx_start(). */ 4303 if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) && 4304 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU))) 4305 params.amsdu = true; 4306 else 4307 params.amsdu = false; 4308 4309 LKPI_80211_LHW_LOCK(lhw); 4310 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4311 LKPI_80211_LHW_UNLOCK(lhw); 4312 if (error != 0) { 4313 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4314 __func__, error, ni, rap); 4315 return (error); 4316 } 4317 4318 if (!ieee80211_hw_check(hw, SUPPORTS_REORDERING_BUFFER)) { 4319 IMPROVE("%s: TODO: SUPPORTS_REORDERING_BUFFER not set; check net80211\n", __func__); 4320 } 4321 4322 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4323 4324 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4325 return (error); 4326 } 4327 4328 static void 4329 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4330 { 4331 struct ieee80211com *ic; 4332 struct lkpi_hw *lhw; 4333 struct ieee80211_hw *hw; 4334 struct ieee80211vap *vap; 4335 struct lkpi_vif *lvif; 4336 struct ieee80211_vif *vif; 4337 struct lkpi_sta *lsta; 4338 struct ieee80211_sta *sta; 4339 struct ieee80211_ampdu_params params = { }; 4340 int error; 4341 uint8_t tid; 4342 4343 ic = ni->ni_ic; 4344 lhw = ic->ic_softc; 4345 4346 /* 4347 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4348 * we did not START. Some drivers pass it down to firmware which will 4349 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4350 * ieee80211_ht_node_init() amongst others which will iterate over all 4351 * tid and call ic_ampdu_rx_stop() unconditionally. 4352 * XXX net80211 should probably be more "gentle" in these cases and 4353 * track some state itself. 4354 */ 4355 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4356 goto net80211_only; 4357 4358 hw = LHW_TO_HW(lhw); 4359 vap = ni->ni_vap; 4360 lvif = VAP_TO_LVIF(vap); 4361 vif = LVIF_TO_VIF(lvif); 4362 lsta = ni->ni_drv_data; 4363 sta = LSTA_TO_STA(lsta); 4364 4365 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4366 for (tid = 0; tid < WME_NUM_TID; tid++) { 4367 if (&ni->ni_rx_ampdu[tid] == rap) 4368 break; 4369 } 4370 4371 params.sta = sta; 4372 params.action = IEEE80211_AMPDU_RX_STOP; 4373 params.buf_size = 0; 4374 params.timeout = 0; 4375 params.ssn = 0; 4376 params.tid = tid; 4377 params.amsdu = false; 4378 4379 // IEEE80211_UNLOCK(ic); 4380 LKPI_80211_LHW_LOCK(lhw); 4381 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4382 LKPI_80211_LHW_UNLOCK(lhw); 4383 // IEEE80211_LOCK(ic); 4384 if (error != 0) 4385 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4386 __func__, error, ni, rap); 4387 4388 net80211_only: 4389 lhw->ic_ampdu_rx_stop(ni, rap); 4390 } 4391 #endif 4392 4393 static void 4394 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4395 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4396 { 4397 #ifdef LKPI_80211_HT 4398 struct ieee80211_sta_ht_cap *ht_cap; 4399 4400 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4401 if (!ht_cap->ht_supported) 4402 return; 4403 4404 switch (band) { 4405 case NL80211_BAND_2GHZ: 4406 setbit(bands, IEEE80211_MODE_11NG); 4407 break; 4408 case NL80211_BAND_5GHZ: 4409 setbit(bands, IEEE80211_MODE_11NA); 4410 break; 4411 default: 4412 IMPROVE("Unsupported band %d", band); 4413 return; 4414 } 4415 4416 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4417 4418 /* 4419 * Rather than manually checking each flag and 4420 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4421 * simply copy the 16bits. 4422 */ 4423 ic->ic_htcaps |= ht_cap->cap; 4424 4425 /* Then deal with the other flags. */ 4426 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4427 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4428 #ifdef __notyet__ 4429 if (ieee80211_hw_check(hw, TX_AMSDU)) 4430 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4431 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4432 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4433 IEEE80211_HTC_TX_AMSDU_AMPDU); 4434 #endif 4435 4436 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4437 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4438 4439 /* Only add HT40 channels if supported. */ 4440 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4441 chan_flags != NULL) 4442 *chan_flags |= NET80211_CBW_FLAG_HT40; 4443 #endif 4444 } 4445 4446 static void 4447 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4448 int *n, struct ieee80211_channel *c) 4449 { 4450 struct lkpi_hw *lhw; 4451 struct ieee80211_hw *hw; 4452 struct linuxkpi_ieee80211_channel *channels; 4453 uint8_t bands[IEEE80211_MODE_BYTES]; 4454 int chan_flags, error, i, nchans; 4455 4456 /* Channels */ 4457 lhw = ic->ic_softc; 4458 hw = LHW_TO_HW(lhw); 4459 4460 /* NL80211_BAND_2GHZ */ 4461 nchans = 0; 4462 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4463 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4464 if (nchans > 0) { 4465 memset(bands, 0, sizeof(bands)); 4466 chan_flags = 0; 4467 setbit(bands, IEEE80211_MODE_11B); 4468 /* XXX-BZ unclear how to check for 11g. */ 4469 4470 IMPROVE("the bitrates may have flags?"); 4471 setbit(bands, IEEE80211_MODE_11G); 4472 4473 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4474 NL80211_BAND_2GHZ); 4475 4476 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4477 for (i = 0; i < nchans && *n < maxchan; i++) { 4478 uint32_t nflags = 0; 4479 int cflags = chan_flags; 4480 4481 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4482 ic_printf(ic, "%s: Skipping disabled chan " 4483 "[%u/%u/%#x]\n", __func__, 4484 channels[i].hw_value, 4485 channels[i].center_freq, channels[i].flags); 4486 continue; 4487 } 4488 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4489 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4490 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4491 nflags |= IEEE80211_CHAN_DFS; 4492 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4493 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4494 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4495 cflags &= ~NET80211_CBW_FLAG_VHT80; 4496 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4497 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4498 cflags &= ~NET80211_CBW_FLAG_HT40; 4499 4500 error = ieee80211_add_channel_cbw(c, maxchan, n, 4501 channels[i].hw_value, channels[i].center_freq, 4502 channels[i].max_power, 4503 nflags, bands, cflags); 4504 /* net80211::ENOBUFS: *n >= maxchans */ 4505 if (error != 0 && error != ENOBUFS) 4506 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4507 "returned error %d\n", 4508 __func__, channels[i].hw_value, 4509 channels[i].center_freq, channels[i].flags, 4510 nflags, chan_flags, cflags, error); 4511 if (error != 0) 4512 break; 4513 } 4514 } 4515 4516 /* NL80211_BAND_5GHZ */ 4517 nchans = 0; 4518 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4519 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4520 if (nchans > 0) { 4521 memset(bands, 0, sizeof(bands)); 4522 chan_flags = 0; 4523 setbit(bands, IEEE80211_MODE_11A); 4524 4525 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4526 NL80211_BAND_5GHZ); 4527 4528 #ifdef LKPI_80211_VHT 4529 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4530 4531 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4532 ic->ic_vht_cap.vht_cap_info = 4533 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4534 4535 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4536 chan_flags |= NET80211_CBW_FLAG_VHT80; 4537 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4538 ic->ic_vht_cap.vht_cap_info)) 4539 chan_flags |= NET80211_CBW_FLAG_VHT160; 4540 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4541 ic->ic_vht_cap.vht_cap_info)) 4542 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4543 } 4544 #endif 4545 4546 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4547 for (i = 0; i < nchans && *n < maxchan; i++) { 4548 uint32_t nflags = 0; 4549 int cflags = chan_flags; 4550 4551 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4552 ic_printf(ic, "%s: Skipping disabled chan " 4553 "[%u/%u/%#x]\n", __func__, 4554 channels[i].hw_value, 4555 channels[i].center_freq, channels[i].flags); 4556 continue; 4557 } 4558 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4559 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4560 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4561 nflags |= IEEE80211_CHAN_DFS; 4562 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4563 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4564 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4565 cflags &= ~NET80211_CBW_FLAG_VHT80; 4566 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4567 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4568 cflags &= ~NET80211_CBW_FLAG_HT40; 4569 4570 error = ieee80211_add_channel_cbw(c, maxchan, n, 4571 channels[i].hw_value, channels[i].center_freq, 4572 channels[i].max_power, 4573 nflags, bands, cflags); 4574 /* net80211::ENOBUFS: *n >= maxchans */ 4575 if (error != 0 && error != ENOBUFS) 4576 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4577 "returned error %d\n", 4578 __func__, channels[i].hw_value, 4579 channels[i].center_freq, channels[i].flags, 4580 nflags, chan_flags, cflags, error); 4581 if (error != 0) 4582 break; 4583 } 4584 } 4585 } 4586 4587 static void * 4588 lkpi_ieee80211_ifalloc(void) 4589 { 4590 struct ieee80211com *ic; 4591 4592 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4593 4594 /* Setting these happens later when we have device information. */ 4595 ic->ic_softc = NULL; 4596 ic->ic_name = "linuxkpi"; 4597 4598 return (ic); 4599 } 4600 4601 struct ieee80211_hw * 4602 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4603 { 4604 struct ieee80211_hw *hw; 4605 struct lkpi_hw *lhw; 4606 struct wiphy *wiphy; 4607 int ac; 4608 4609 /* Get us and the driver data also allocated. */ 4610 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4611 if (wiphy == NULL) 4612 return (NULL); 4613 4614 lhw = wiphy_priv(wiphy); 4615 lhw->ops = ops; 4616 4617 LKPI_80211_LHW_LOCK_INIT(lhw); 4618 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4619 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4620 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4621 TAILQ_INIT(&lhw->lvif_head); 4622 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4623 lhw->txq_generation[ac] = 1; 4624 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4625 } 4626 4627 /* Deferred RX path. */ 4628 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4629 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4630 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4631 lhw->rxq_stopped = false; 4632 4633 /* 4634 * XXX-BZ TODO make sure there is a "_null" function to all ops 4635 * not initialized. 4636 */ 4637 hw = LHW_TO_HW(lhw); 4638 hw->wiphy = wiphy; 4639 hw->conf.flags |= IEEE80211_CONF_IDLE; 4640 hw->priv = (void *)(lhw + 1); 4641 4642 /* BSD Specific. */ 4643 lhw->ic = lkpi_ieee80211_ifalloc(); 4644 4645 IMPROVE(); 4646 4647 return (hw); 4648 } 4649 4650 void 4651 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4652 { 4653 struct lkpi_hw *lhw; 4654 struct mbuf *m; 4655 4656 lhw = HW_TO_LHW(hw); 4657 free(lhw->ic, M_LKPI80211); 4658 lhw->ic = NULL; 4659 4660 /* 4661 * Drain the deferred RX path. 4662 */ 4663 LKPI_80211_LHW_RXQ_LOCK(lhw); 4664 lhw->rxq_stopped = true; 4665 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4666 4667 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4668 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4669 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4670 4671 /* Flush mbufq (make sure to release ni refs!). */ 4672 m = mbufq_dequeue(&lhw->rxq); 4673 while (m != NULL) { 4674 struct m_tag *mtag; 4675 4676 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4677 if (mtag != NULL) { 4678 struct lkpi_80211_tag_rxni *rxni; 4679 4680 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4681 ieee80211_free_node(rxni->ni); 4682 } 4683 m_freem(m); 4684 m = mbufq_dequeue(&lhw->rxq); 4685 } 4686 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4687 __func__, lhw, mbufq_len(&lhw->rxq))); 4688 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4689 4690 /* Cleanup more of lhw here or in wiphy_free()? */ 4691 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4692 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4693 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4694 sx_destroy(&lhw->lvif_sx); 4695 IMPROVE(); 4696 } 4697 4698 void 4699 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4700 { 4701 struct lkpi_hw *lhw; 4702 struct ieee80211com *ic; 4703 4704 lhw = HW_TO_LHW(hw); 4705 ic = lhw->ic; 4706 4707 /* Now set a proper name before ieee80211_ifattach(). */ 4708 ic->ic_softc = lhw; 4709 ic->ic_name = name; 4710 4711 /* XXX-BZ do we also need to set wiphy name? */ 4712 } 4713 4714 struct ieee80211_hw * 4715 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4716 { 4717 struct lkpi_hw *lhw; 4718 4719 lhw = wiphy_priv(wiphy); 4720 return (LHW_TO_HW(lhw)); 4721 } 4722 4723 static void 4724 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4725 { 4726 struct ieee80211com *ic; 4727 4728 ic = lhw->ic; 4729 ieee80211_radiotap_attach(ic, 4730 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4731 LKPI_RTAP_TX_FLAGS_PRESENT, 4732 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4733 LKPI_RTAP_RX_FLAGS_PRESENT); 4734 } 4735 4736 int 4737 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4738 { 4739 struct ieee80211com *ic; 4740 struct lkpi_hw *lhw; 4741 int band, i; 4742 4743 lhw = HW_TO_LHW(hw); 4744 ic = lhw->ic; 4745 4746 /* We do it this late as wiphy->dev should be set for the name. */ 4747 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4748 if (lhw->workq == NULL) 4749 return (-EAGAIN); 4750 4751 /* XXX-BZ figure this out how they count his... */ 4752 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4753 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4754 hw->wiphy->perm_addr); 4755 } else if (hw->wiphy->n_addresses > 0) { 4756 /* We take the first one. */ 4757 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4758 hw->wiphy->addresses[0].addr); 4759 } else { 4760 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4761 } 4762 4763 #ifdef __not_yet__ 4764 /* See comment in lkpi_80211_txq_tx_one(). */ 4765 ic->ic_headroom = hw->extra_tx_headroom; 4766 #endif 4767 4768 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4769 ic->ic_opmode = IEEE80211_M_STA; 4770 4771 /* Set device capabilities. */ 4772 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4773 ic->ic_caps = 4774 IEEE80211_C_STA | 4775 IEEE80211_C_MONITOR | 4776 IEEE80211_C_WPA | /* WPA/RSN */ 4777 #ifdef LKPI_80211_WME 4778 IEEE80211_C_WME | 4779 #endif 4780 #if 0 4781 IEEE80211_C_PMGT | 4782 #endif 4783 IEEE80211_C_SHSLOT | /* short slot time supported */ 4784 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4785 ; 4786 #if 0 4787 /* Scanning is a different kind of beast to re-work. */ 4788 ic->ic_caps |= IEEE80211_C_BGSCAN; 4789 #endif 4790 if (lhw->ops->hw_scan) { 4791 /* 4792 * Advertise full-offload scanning. 4793 * 4794 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4795 * we essentially disable hw_scan for all drivers not setting 4796 * the flag. 4797 */ 4798 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4799 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4800 } 4801 4802 /* 4803 * The wiphy variables report bitmasks of avail antennas. 4804 * (*get_antenna) get the current bitmask sets which can be 4805 * altered by (*set_antenna) for some drivers. 4806 * XXX-BZ will the count alone do us much good long-term in net80211? 4807 */ 4808 if (hw->wiphy->available_antennas_rx || 4809 hw->wiphy->available_antennas_tx) { 4810 uint32_t rxs, txs; 4811 4812 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4813 ic->ic_rxstream = bitcount32(rxs); 4814 ic->ic_txstream = bitcount32(txs); 4815 } 4816 } 4817 4818 ic->ic_cryptocaps = 0; 4819 #ifdef LKPI_80211_HW_CRYPTO 4820 if (hw->wiphy->n_cipher_suites > 0) { 4821 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4822 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4823 hw->wiphy->cipher_suites[i]); 4824 } 4825 #endif 4826 4827 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4828 ic->ic_channels); 4829 4830 ieee80211_ifattach(ic); 4831 4832 ic->ic_update_mcast = lkpi_ic_update_mcast; 4833 ic->ic_update_promisc = lkpi_ic_update_promisc; 4834 ic->ic_update_chw = lkpi_ic_update_chw; 4835 ic->ic_parent = lkpi_ic_parent; 4836 ic->ic_scan_start = lkpi_ic_scan_start; 4837 ic->ic_scan_end = lkpi_ic_scan_end; 4838 ic->ic_set_channel = lkpi_ic_set_channel; 4839 ic->ic_transmit = lkpi_ic_transmit; 4840 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4841 ic->ic_vap_create = lkpi_ic_vap_create; 4842 ic->ic_vap_delete = lkpi_ic_vap_delete; 4843 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4844 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4845 4846 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4847 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4848 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4849 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4850 4851 lhw->ic_node_alloc = ic->ic_node_alloc; 4852 ic->ic_node_alloc = lkpi_ic_node_alloc; 4853 lhw->ic_node_init = ic->ic_node_init; 4854 ic->ic_node_init = lkpi_ic_node_init; 4855 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4856 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4857 lhw->ic_node_free = ic->ic_node_free; 4858 ic->ic_node_free = lkpi_ic_node_free; 4859 4860 #ifdef LKPI_80211_HT 4861 /* 4862 * Only attach if the driver/firmware supports (*ampdu_action)(). 4863 * Otherwise it is in the hands of net80211. 4864 */ 4865 if (lhw->ops->ampdu_action != NULL) { 4866 lhw->ic_recv_action = ic->ic_recv_action; 4867 ic->ic_recv_action = lkpi_ic_recv_action; 4868 lhw->ic_send_action = ic->ic_send_action; 4869 ic->ic_send_action = lkpi_ic_send_action; 4870 4871 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4872 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4873 4874 lhw->ic_addba_request = ic->ic_addba_request; 4875 ic->ic_addba_request = lkpi_ic_addba_request; 4876 lhw->ic_addba_response = ic->ic_addba_response; 4877 ic->ic_addba_response = lkpi_ic_addba_response; 4878 lhw->ic_addba_stop = ic->ic_addba_stop; 4879 ic->ic_addba_stop = lkpi_ic_addba_stop; 4880 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4881 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4882 4883 lhw->ic_bar_response = ic->ic_bar_response; 4884 ic->ic_bar_response = lkpi_ic_bar_response; 4885 4886 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4887 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4888 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4889 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4890 } 4891 #endif 4892 4893 lkpi_radiotap_attach(lhw); 4894 4895 /* 4896 * Assign the first possible channel for now; seems Realtek drivers 4897 * expect one. 4898 * Also remember the amount of bands we support and the most rates 4899 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4900 */ 4901 lhw->supbands = lhw->max_rates = 0; 4902 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4903 struct ieee80211_supported_band *supband; 4904 struct linuxkpi_ieee80211_channel *channels; 4905 4906 supband = hw->wiphy->bands[band]; 4907 if (supband == NULL || supband->n_channels == 0) 4908 continue; 4909 4910 lhw->supbands++; 4911 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4912 4913 /* If we have a channel, we need to keep counting supbands. */ 4914 if (hw->conf.chandef.chan != NULL) 4915 continue; 4916 4917 channels = supband->channels; 4918 for (i = 0; i < supband->n_channels; i++) { 4919 4920 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4921 continue; 4922 4923 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4924 #ifdef LKPI_80211_HT 4925 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4926 #endif 4927 NL80211_CHAN_NO_HT); 4928 break; 4929 } 4930 } 4931 4932 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4933 4934 /* Make sure we do not support more than net80211 is willing to take. */ 4935 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4936 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4937 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4938 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4939 } 4940 4941 /* 4942 * The maximum supported bitrates on any band + size for 4943 * DSSS Parameter Set give our per-band IE size. 4944 * SSID is the responsibility of the driver and goes on the side. 4945 * The user specified bits coming from the vap go into the 4946 * "common ies" fields. 4947 */ 4948 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4949 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4950 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4951 4952 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4953 /* 4954 * net80211 does not seem to support the DSSS Parameter Set but 4955 * some of the drivers insert it so calculate the extra fixed 4956 * space in. 4957 */ 4958 lhw->scan_ie_len += 2 + 1; 4959 } 4960 4961 #if defined(LKPI_80211_HT) 4962 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4963 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4964 #endif 4965 #if defined(LKPI_80211_VHT) 4966 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4967 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4968 #endif 4969 4970 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4971 if (hw->wiphy->max_scan_ie_len > 0) { 4972 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4973 goto err; 4974 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4975 } 4976 4977 if (bootverbose) 4978 ieee80211_announce(ic); 4979 4980 return (0); 4981 err: 4982 IMPROVE("TODO FIXME CLEANUP"); 4983 return (-EAGAIN); 4984 } 4985 4986 void 4987 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4988 { 4989 struct lkpi_hw *lhw; 4990 struct ieee80211com *ic; 4991 4992 lhw = HW_TO_LHW(hw); 4993 ic = lhw->ic; 4994 ieee80211_ifdetach(ic); 4995 } 4996 4997 void 4998 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4999 enum ieee80211_iface_iter flags, 5000 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 5001 void *arg) 5002 { 5003 struct lkpi_hw *lhw; 5004 struct lkpi_vif *lvif; 5005 struct ieee80211_vif *vif; 5006 bool active, atomic, nin_drv; 5007 5008 lhw = HW_TO_LHW(hw); 5009 5010 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 5011 IEEE80211_IFACE_ITER_RESUME_ALL| 5012 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 5013 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 5014 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 5015 __func__, flags); 5016 } 5017 5018 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 5019 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 5020 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 5021 5022 if (atomic) 5023 LKPI_80211_LHW_LVIF_LOCK(lhw); 5024 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5025 struct ieee80211vap *vap; 5026 5027 vif = LVIF_TO_VIF(lvif); 5028 5029 /* 5030 * If we want "active" interfaces, we need to distinguish on 5031 * whether the driver knows about them or not to be able to 5032 * handle the "resume" case correctly. Skip the ones the 5033 * driver does not know about. 5034 */ 5035 if (active && !lvif->added_to_drv && 5036 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 5037 continue; 5038 5039 /* 5040 * If we shall skip interfaces not added to the driver do so 5041 * if we haven't yet. 5042 */ 5043 if (nin_drv && !lvif->added_to_drv) 5044 continue; 5045 5046 /* 5047 * Run the iterator function if we are either not asking 5048 * asking for active only or if the VAP is "running". 5049 */ 5050 /* XXX-BZ probably should have state in the lvif as well. */ 5051 vap = LVIF_TO_VAP(lvif); 5052 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 5053 iterfunc(arg, vif->addr, vif); 5054 } 5055 if (atomic) 5056 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5057 } 5058 5059 void 5060 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 5061 struct ieee80211_vif *vif, 5062 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 5063 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 5064 void *arg) 5065 { 5066 5067 UNIMPLEMENTED; 5068 } 5069 5070 void 5071 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 5072 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 5073 void *), 5074 void *arg) 5075 { 5076 struct lkpi_hw *lhw; 5077 struct lkpi_vif *lvif; 5078 struct ieee80211_vif *vif; 5079 struct lkpi_chanctx *lchanctx; 5080 5081 KASSERT(hw != NULL && iterfunc != NULL, 5082 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 5083 5084 lhw = HW_TO_LHW(hw); 5085 5086 IMPROVE("lchanctx should be its own list somewhere"); 5087 5088 LKPI_80211_LHW_LVIF_LOCK(lhw); 5089 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5090 5091 vif = LVIF_TO_VIF(lvif); 5092 if (vif->chanctx_conf == NULL) 5093 continue; 5094 5095 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 5096 if (!lchanctx->added_to_drv) 5097 continue; 5098 5099 iterfunc(hw, &lchanctx->chanctx_conf, arg); 5100 } 5101 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5102 } 5103 5104 void 5105 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 5106 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 5107 { 5108 struct lkpi_hw *lhw; 5109 struct lkpi_vif *lvif; 5110 struct lkpi_sta *lsta; 5111 struct ieee80211_sta *sta; 5112 5113 KASSERT(hw != NULL && iterfunc != NULL, 5114 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 5115 5116 lhw = HW_TO_LHW(hw); 5117 5118 LKPI_80211_LHW_LVIF_LOCK(lhw); 5119 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5120 5121 LKPI_80211_LVIF_LOCK(lvif); 5122 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5123 if (!lsta->added_to_drv) 5124 continue; 5125 sta = LSTA_TO_STA(lsta); 5126 iterfunc(arg, sta); 5127 } 5128 LKPI_80211_LVIF_UNLOCK(lvif); 5129 } 5130 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5131 } 5132 5133 struct linuxkpi_ieee80211_regdomain * 5134 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 5135 { 5136 struct linuxkpi_ieee80211_regdomain *regd; 5137 5138 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 5139 GFP_KERNEL); 5140 return (regd); 5141 } 5142 5143 int 5144 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 5145 struct linuxkpi_ieee80211_regdomain *regd) 5146 { 5147 struct lkpi_hw *lhw; 5148 struct ieee80211com *ic; 5149 struct ieee80211_regdomain *rd; 5150 5151 lhw = wiphy_priv(wiphy); 5152 ic = lhw->ic; 5153 5154 rd = &ic->ic_regdomain; 5155 if (rd->isocc[0] == '\0') { 5156 rd->isocc[0] = regd->alpha2[0]; 5157 rd->isocc[1] = regd->alpha2[1]; 5158 } 5159 5160 TODO(); 5161 /* XXX-BZ finish the rest. */ 5162 5163 return (0); 5164 } 5165 5166 void 5167 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 5168 struct cfg80211_scan_info *info) 5169 { 5170 struct lkpi_hw *lhw; 5171 struct ieee80211com *ic; 5172 struct ieee80211_scan_state *ss; 5173 5174 lhw = wiphy_priv(hw->wiphy); 5175 ic = lhw->ic; 5176 ss = ic->ic_scan; 5177 5178 ieee80211_scan_done(ss->ss_vap); 5179 5180 LKPI_80211_LHW_SCAN_LOCK(lhw); 5181 free(lhw->hw_req, M_LKPI80211); 5182 lhw->hw_req = NULL; 5183 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 5184 wakeup(lhw); 5185 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5186 5187 return; 5188 } 5189 5190 static void 5191 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 5192 { 5193 struct ieee80211_node *ni; 5194 struct m_tag *mtag; 5195 int ok; 5196 5197 ni = NULL; 5198 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 5199 if (mtag != NULL) { 5200 struct lkpi_80211_tag_rxni *rxni; 5201 5202 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5203 ni = rxni->ni; 5204 } 5205 5206 if (ni != NULL) { 5207 ok = ieee80211_input_mimo(ni, m); 5208 ieee80211_free_node(ni); /* Release the reference. */ 5209 if (ok < 0) 5210 m_freem(m); 5211 } else { 5212 ok = ieee80211_input_mimo_all(lhw->ic, m); 5213 /* mbuf got consumed. */ 5214 } 5215 5216 #ifdef LINUXKPI_DEBUG_80211 5217 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5218 printf("TRACE-RX: %s: handled frame type %#0x\n", __func__, ok); 5219 #endif 5220 } 5221 5222 static void 5223 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 5224 { 5225 struct lkpi_hw *lhw; 5226 struct mbufq mq; 5227 struct mbuf *m; 5228 5229 lhw = ctx; 5230 5231 #ifdef LINUXKPI_DEBUG_80211 5232 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5233 printf("TRACE-RX: %s: lhw %p pending %d mbuf_qlen %d\n", 5234 __func__, lhw, pending, mbufq_len(&lhw->rxq)); 5235 #endif 5236 5237 mbufq_init(&mq, IFQ_MAXLEN); 5238 5239 LKPI_80211_LHW_RXQ_LOCK(lhw); 5240 mbufq_concat(&mq, &lhw->rxq); 5241 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5242 5243 m = mbufq_dequeue(&mq); 5244 while (m != NULL) { 5245 lkpi_80211_lhw_rxq_rx_one(lhw, m); 5246 m = mbufq_dequeue(&mq); 5247 } 5248 } 5249 5250 /* For %list see comment towards the end of the function. */ 5251 void 5252 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 5253 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 5254 struct list_head *list __unused) 5255 { 5256 struct lkpi_hw *lhw; 5257 struct ieee80211com *ic; 5258 struct mbuf *m; 5259 struct skb_shared_info *shinfo; 5260 struct ieee80211_rx_status *rx_status; 5261 struct ieee80211_rx_stats rx_stats; 5262 struct ieee80211_node *ni; 5263 struct ieee80211vap *vap; 5264 struct ieee80211_hdr *hdr; 5265 struct lkpi_sta *lsta; 5266 int i, offset, ok; 5267 int8_t rssi; 5268 bool is_beacon; 5269 5270 if (skb->len < 2) { 5271 /* Need 80211 stats here. */ 5272 IMPROVE(); 5273 goto err; 5274 } 5275 5276 /* 5277 * For now do the data copy; we can later improve things. Might even 5278 * have an mbuf backing the skb data then? 5279 */ 5280 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 5281 if (m == NULL) 5282 goto err; 5283 m_copyback(m, 0, skb->tail - skb->data, skb->data); 5284 5285 shinfo = skb_shinfo(skb); 5286 offset = m->m_len; 5287 for (i = 0; i < shinfo->nr_frags; i++) { 5288 m_copyback(m, offset, shinfo->frags[i].size, 5289 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 5290 shinfo->frags[i].offset); 5291 offset += shinfo->frags[i].size; 5292 } 5293 5294 rx_status = IEEE80211_SKB_RXCB(skb); 5295 5296 hdr = (void *)skb->data; 5297 is_beacon = ieee80211_is_beacon(hdr->frame_control); 5298 5299 #ifdef LINUXKPI_DEBUG_80211 5300 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 5301 goto no_trace_beacons; 5302 5303 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5304 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 5305 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 5306 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 5307 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 5308 shinfo, shinfo->nr_frags, 5309 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 5310 5311 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 5312 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 5313 5314 /* Implement a dump_rxcb() !!! */ 5315 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5316 printf("TRACE-RX: %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 5317 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 5318 __func__, 5319 (uintmax_t)rx_status->boottime_ns, 5320 (uintmax_t)rx_status->mactime, 5321 rx_status->device_timestamp, 5322 rx_status->flag, 5323 rx_status->freq, 5324 rx_status->bw, 5325 rx_status->encoding, 5326 rx_status->ampdu_reference, 5327 rx_status->band, 5328 rx_status->chains, 5329 rx_status->chain_signal[0], 5330 rx_status->chain_signal[1], 5331 rx_status->chain_signal[2], 5332 rx_status->chain_signal[3], 5333 rx_status->signal, 5334 rx_status->enc_flags, 5335 rx_status->he_dcm, 5336 rx_status->he_gi, 5337 rx_status->he_ru, 5338 rx_status->zero_length_psdu_type, 5339 rx_status->nss, 5340 rx_status->rate_idx); 5341 no_trace_beacons: 5342 #endif 5343 5344 memset(&rx_stats, 0, sizeof(rx_stats)); 5345 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5346 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5347 rx_stats.c_nf = -96; 5348 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5349 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5350 rssi = rx_status->signal; 5351 else 5352 rssi = rx_stats.c_nf; 5353 /* 5354 * net80211 signal strength data are in .5 dBm units relative to 5355 * the current noise floor (see comment in ieee80211_node.h). 5356 */ 5357 rssi -= rx_stats.c_nf; 5358 rx_stats.c_rssi = rssi * 2; 5359 rx_stats.r_flags |= IEEE80211_R_BAND; 5360 rx_stats.c_band = 5361 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5362 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5363 rx_stats.c_freq = rx_status->freq; 5364 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5365 5366 /* XXX (*sta_statistics)() to get to some of that? */ 5367 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5368 5369 lhw = HW_TO_LHW(hw); 5370 ic = lhw->ic; 5371 5372 ok = ieee80211_add_rx_params(m, &rx_stats); 5373 if (ok == 0) { 5374 m_freem(m); 5375 counter_u64_add(ic->ic_ierrors, 1); 5376 goto err; 5377 } 5378 5379 lsta = NULL; 5380 if (sta != NULL) { 5381 lsta = STA_TO_LSTA(sta); 5382 ni = ieee80211_ref_node(lsta->ni); 5383 } else { 5384 struct ieee80211_frame_min *wh; 5385 5386 wh = mtod(m, struct ieee80211_frame_min *); 5387 ni = ieee80211_find_rxnode(ic, wh); 5388 if (ni != NULL) 5389 lsta = ni->ni_drv_data; 5390 } 5391 5392 if (ni != NULL) 5393 vap = ni->ni_vap; 5394 else 5395 /* 5396 * XXX-BZ can we improve this by looking at the frame hdr 5397 * or other meta-data passed up? 5398 */ 5399 vap = TAILQ_FIRST(&ic->ic_vaps); 5400 5401 #ifdef LINUXKPI_DEBUG_80211 5402 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5403 printf("TRACE-RX: %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5404 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5405 ni, vap, is_beacon ? " beacon" : ""); 5406 #endif 5407 5408 if (ni != NULL && vap != NULL && is_beacon && 5409 rx_status->device_timestamp > 0 && 5410 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5411 struct lkpi_vif *lvif; 5412 struct ieee80211_vif *vif; 5413 struct ieee80211_frame *wh; 5414 5415 wh = mtod(m, struct ieee80211_frame *); 5416 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5417 goto skip_device_ts; 5418 5419 lvif = VAP_TO_LVIF(vap); 5420 vif = LVIF_TO_VIF(lvif); 5421 5422 IMPROVE("TIMING_BEACON_ONLY?"); 5423 /* mac80211 specific (not net80211) so keep it here. */ 5424 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5425 /* 5426 * net80211 should take care of the other information (sync_tsf, 5427 * sync_dtim_count) as otherwise we need to parse the beacon. 5428 */ 5429 skip_device_ts: 5430 ; 5431 } 5432 5433 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5434 ieee80211_radiotap_active_vap(vap)) { 5435 struct lkpi_radiotap_rx_hdr *rtap; 5436 5437 rtap = &lhw->rtap_rx; 5438 rtap->wr_tsft = rx_status->device_timestamp; 5439 rtap->wr_flags = 0; 5440 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5441 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5442 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5443 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5444 #if 0 /* .. or it does not given we strip it below. */ 5445 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5446 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5447 #endif 5448 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5449 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5450 rtap->wr_rate = 0; 5451 IMPROVE(); 5452 /* XXX TODO status->encoding / rate_index / bw */ 5453 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5454 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5455 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5456 rtap->wr_dbm_antsignal = rssi; 5457 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5458 } 5459 5460 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5461 m_adj(m, -IEEE80211_CRC_LEN); 5462 5463 #if 0 5464 if (list != NULL) { 5465 /* 5466 * Normally this would be queued up and delivered by 5467 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5468 * See mt76::mac80211.c as only current possible consumer. 5469 */ 5470 IMPROVE("we simply pass the packet to net80211 to deal with."); 5471 } 5472 #endif 5473 5474 /* 5475 * Attach meta-information to the mbuf for the deferred RX path. 5476 * Currently this is best-effort. Should we need to be hard, 5477 * drop the frame and goto err; 5478 */ 5479 if (ni != NULL) { 5480 struct m_tag *mtag; 5481 struct lkpi_80211_tag_rxni *rxni; 5482 5483 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5484 sizeof(*rxni), IEEE80211_M_NOWAIT); 5485 if (mtag != NULL) { 5486 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5487 rxni->ni = ni; /* We hold a reference. */ 5488 m_tag_prepend(m, mtag); 5489 } 5490 } 5491 5492 LKPI_80211_LHW_RXQ_LOCK(lhw); 5493 if (lhw->rxq_stopped) { 5494 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5495 m_freem(m); 5496 goto err; 5497 } 5498 5499 mbufq_enqueue(&lhw->rxq, m); 5500 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5501 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5502 5503 IMPROVE(); 5504 5505 err: 5506 /* The skb is ours so we can free it :-) */ 5507 kfree_skb(skb); 5508 } 5509 5510 uint8_t 5511 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5512 { 5513 const struct ieee80211_frame *wh; 5514 uint8_t tid; 5515 5516 /* Linux seems to assume this is a QOS-Data-Frame */ 5517 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5518 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5519 hdr->frame_control)); 5520 5521 wh = (const struct ieee80211_frame *)hdr; 5522 tid = ieee80211_gettid(wh); 5523 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5524 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5525 5526 return (tid); 5527 } 5528 5529 /* -------------------------------------------------------------------------- */ 5530 5531 static void 5532 lkpi_wiphy_work(struct work_struct *work) 5533 { 5534 struct lkpi_wiphy *lwiphy; 5535 struct wiphy *wiphy; 5536 struct wiphy_work *wk; 5537 5538 lwiphy = container_of(work, struct lkpi_wiphy, wwk); 5539 wiphy = LWIPHY_TO_WIPHY(lwiphy); 5540 5541 wiphy_lock(wiphy); 5542 5543 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5544 wk = list_first_entry_or_null(&lwiphy->wwk_list, struct wiphy_work, entry); 5545 /* If there is nothing we do nothing. */ 5546 if (wk == NULL) { 5547 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5548 wiphy_unlock(wiphy); 5549 return; 5550 } 5551 list_del_init(&wk->entry); 5552 5553 /* More work to do? */ 5554 if (!list_empty(&lwiphy->wwk_list)) 5555 schedule_work(work); 5556 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5557 5558 /* Finally call the (*wiphy_work_fn)() function. */ 5559 wk->fn(wiphy, wk); 5560 5561 wiphy_unlock(wiphy); 5562 } 5563 5564 void 5565 linuxkpi_wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *wwk) 5566 { 5567 struct lkpi_wiphy *lwiphy; 5568 5569 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5570 5571 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5572 /* Do not double-queue. */ 5573 if (list_empty(&wwk->entry)) 5574 list_add_tail(&wwk->entry, &lwiphy->wwk_list); 5575 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5576 5577 /* 5578 * See how ieee80211_queue_work() work continues in Linux or if things 5579 * migrate here over time? 5580 * Use a system queue from linux/workqueue.h for now. 5581 */ 5582 queue_work(system_wq, &lwiphy->wwk); 5583 } 5584 5585 void 5586 linuxkpi_wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *wwk) 5587 { 5588 struct lkpi_wiphy *lwiphy; 5589 5590 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5591 5592 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5593 /* Only cancel if queued. */ 5594 if (!list_empty(&wwk->entry)) 5595 list_del_init(&wwk->entry); 5596 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5597 } 5598 5599 void 5600 linuxkpi_wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *wwk) 5601 { 5602 struct lkpi_wiphy *lwiphy; 5603 struct wiphy_work *wk; 5604 5605 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5606 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5607 /* If wwk is unset, flush everything; called when wiphy is shut down. */ 5608 if (wwk != NULL && list_empty(&wwk->entry)) { 5609 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5610 return; 5611 } 5612 5613 while (!list_empty(&lwiphy->wwk_list)) { 5614 5615 wk = list_first_entry(&lwiphy->wwk_list, struct wiphy_work, 5616 entry); 5617 list_del_init(&wk->entry); 5618 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5619 wk->fn(wiphy, wk); 5620 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5621 if (wk == wwk) 5622 break; 5623 } 5624 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5625 } 5626 5627 void 5628 lkpi_wiphy_delayed_work_timer(struct timer_list *tl) 5629 { 5630 struct wiphy_delayed_work *wdwk; 5631 5632 wdwk = from_timer(wdwk, tl, timer); 5633 wiphy_work_queue(wdwk->wiphy, &wdwk->work); 5634 } 5635 5636 void 5637 linuxkpi_wiphy_delayed_work_queue(struct wiphy *wiphy, 5638 struct wiphy_delayed_work *wdwk, unsigned long delay) 5639 { 5640 if (delay == 0) { 5641 /* Run right away. */ 5642 del_timer(&wdwk->timer); 5643 wiphy_work_queue(wiphy, &wdwk->work); 5644 } else { 5645 wdwk->wiphy = wiphy; 5646 mod_timer(&wdwk->timer, jiffies + delay); 5647 } 5648 } 5649 5650 void 5651 linuxkpi_wiphy_delayed_work_cancel(struct wiphy *wiphy, 5652 struct wiphy_delayed_work *wdwk) 5653 { 5654 del_timer_sync(&wdwk->timer); 5655 wiphy_work_cancel(wiphy, &wdwk->work); 5656 } 5657 5658 /* -------------------------------------------------------------------------- */ 5659 5660 struct wiphy * 5661 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5662 { 5663 struct lkpi_wiphy *lwiphy; 5664 struct wiphy *wiphy; 5665 5666 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5667 if (lwiphy == NULL) 5668 return (NULL); 5669 lwiphy->ops = ops; 5670 5671 LKPI_80211_LWIPHY_WORK_LOCK_INIT(lwiphy); 5672 INIT_LIST_HEAD(&lwiphy->wwk_list); 5673 INIT_WORK(&lwiphy->wwk, lkpi_wiphy_work); 5674 5675 wiphy = LWIPHY_TO_WIPHY(lwiphy); 5676 5677 mutex_init(&wiphy->mtx); 5678 TODO(); 5679 5680 return (wiphy); 5681 } 5682 5683 void 5684 linuxkpi_wiphy_free(struct wiphy *wiphy) 5685 { 5686 struct lkpi_wiphy *lwiphy; 5687 5688 if (wiphy == NULL) 5689 return; 5690 5691 linuxkpi_wiphy_work_flush(wiphy, NULL); 5692 mutex_destroy(&wiphy->mtx); 5693 5694 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5695 LKPI_80211_LWIPHY_WORK_LOCK_DESTROY(lwiphy); 5696 5697 kfree(lwiphy); 5698 } 5699 5700 uint32_t 5701 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5702 enum nl80211_band band) 5703 { 5704 5705 switch (band) { 5706 case NL80211_BAND_2GHZ: 5707 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5708 break; 5709 case NL80211_BAND_5GHZ: 5710 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5711 break; 5712 default: 5713 /* XXX abort, retry, error, panic? */ 5714 break; 5715 } 5716 5717 return (0); 5718 } 5719 5720 uint32_t 5721 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5722 { 5723 5724 return (ieee80211_mhz2ieee(freq, 0)); 5725 } 5726 5727 #if 0 5728 static struct lkpi_sta * 5729 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5730 { 5731 struct lkpi_sta *lsta, *temp; 5732 5733 LKPI_80211_LVIF_LOCK(lvif); 5734 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5735 if (lsta->ni == ni) { 5736 LKPI_80211_LVIF_UNLOCK(lvif); 5737 return (lsta); 5738 } 5739 } 5740 LKPI_80211_LVIF_UNLOCK(lvif); 5741 5742 return (NULL); 5743 } 5744 #endif 5745 5746 struct ieee80211_sta * 5747 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5748 { 5749 struct lkpi_vif *lvif; 5750 struct lkpi_sta *lsta, *temp; 5751 struct ieee80211_sta *sta; 5752 5753 lvif = VIF_TO_LVIF(vif); 5754 5755 LKPI_80211_LVIF_LOCK(lvif); 5756 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5757 sta = LSTA_TO_STA(lsta); 5758 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5759 LKPI_80211_LVIF_UNLOCK(lvif); 5760 return (sta); 5761 } 5762 } 5763 LKPI_80211_LVIF_UNLOCK(lvif); 5764 return (NULL); 5765 } 5766 5767 struct ieee80211_sta * 5768 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5769 const uint8_t *addr, const uint8_t *ourvifaddr) 5770 { 5771 struct lkpi_hw *lhw; 5772 struct lkpi_vif *lvif; 5773 struct lkpi_sta *lsta; 5774 struct ieee80211_vif *vif; 5775 struct ieee80211_sta *sta; 5776 5777 lhw = wiphy_priv(hw->wiphy); 5778 sta = NULL; 5779 5780 LKPI_80211_LHW_LVIF_LOCK(lhw); 5781 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5782 5783 /* XXX-BZ check our address from the vif. */ 5784 5785 vif = LVIF_TO_VIF(lvif); 5786 if (ourvifaddr != NULL && 5787 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5788 continue; 5789 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5790 if (sta != NULL) 5791 break; 5792 } 5793 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5794 5795 if (sta != NULL) { 5796 lsta = STA_TO_LSTA(sta); 5797 if (!lsta->added_to_drv) 5798 return (NULL); 5799 } 5800 5801 return (sta); 5802 } 5803 5804 struct sk_buff * 5805 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5806 struct ieee80211_txq *txq) 5807 { 5808 struct lkpi_txq *ltxq; 5809 struct lkpi_vif *lvif; 5810 struct sk_buff *skb; 5811 5812 skb = NULL; 5813 ltxq = TXQ_TO_LTXQ(txq); 5814 ltxq->seen_dequeue = true; 5815 5816 if (ltxq->stopped) 5817 goto stopped; 5818 5819 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5820 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5821 ltxq->stopped = true; 5822 goto stopped; 5823 } 5824 5825 IMPROVE("hw(TX_FRAG_LIST)"); 5826 5827 LKPI_80211_LTXQ_LOCK(ltxq); 5828 skb = skb_dequeue(<xq->skbq); 5829 LKPI_80211_LTXQ_UNLOCK(ltxq); 5830 5831 stopped: 5832 return (skb); 5833 } 5834 5835 void 5836 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5837 unsigned long *frame_cnt, unsigned long *byte_cnt) 5838 { 5839 struct lkpi_txq *ltxq; 5840 struct sk_buff *skb; 5841 unsigned long fc, bc; 5842 5843 ltxq = TXQ_TO_LTXQ(txq); 5844 5845 fc = bc = 0; 5846 LKPI_80211_LTXQ_LOCK(ltxq); 5847 skb_queue_walk(<xq->skbq, skb) { 5848 fc++; 5849 bc += skb->len; 5850 } 5851 LKPI_80211_LTXQ_UNLOCK(ltxq); 5852 if (frame_cnt) 5853 *frame_cnt = fc; 5854 if (byte_cnt) 5855 *byte_cnt = bc; 5856 5857 /* Validate that this is doing the correct thing. */ 5858 /* Should we keep track on en/dequeue? */ 5859 IMPROVE(); 5860 } 5861 5862 /* 5863 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5864 * The latter tries to derive the success status from the info flags 5865 * passed back from the driver. rawx_mit() saves the ni on the m and the 5866 * m on the skb for us to be able to give feedback to net80211. 5867 */ 5868 static void 5869 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5870 int status) 5871 { 5872 struct ieee80211_node *ni; 5873 struct mbuf *m; 5874 5875 m = skb->m; 5876 skb->m = NULL; 5877 5878 if (m != NULL) { 5879 ni = m->m_pkthdr.PH_loc.ptr; 5880 /* Status: 0 is ok, != 0 is error. */ 5881 ieee80211_tx_complete(ni, m, status); 5882 /* ni & mbuf were consumed. */ 5883 } 5884 } 5885 5886 void 5887 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5888 int status) 5889 { 5890 5891 _lkpi_ieee80211_free_txskb(hw, skb, status); 5892 kfree_skb(skb); 5893 } 5894 5895 void 5896 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5897 struct ieee80211_tx_status *txstat) 5898 { 5899 struct sk_buff *skb; 5900 struct ieee80211_tx_info *info; 5901 struct ieee80211_ratectl_tx_status txs; 5902 struct ieee80211_node *ni; 5903 int status; 5904 5905 skb = txstat->skb; 5906 if (skb->m != NULL) { 5907 struct mbuf *m; 5908 5909 m = skb->m; 5910 ni = m->m_pkthdr.PH_loc.ptr; 5911 memset(&txs, 0, sizeof(txs)); 5912 } else { 5913 ni = NULL; 5914 } 5915 5916 info = txstat->info; 5917 if (info->flags & IEEE80211_TX_STAT_ACK) { 5918 status = 0; /* No error. */ 5919 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5920 } else { 5921 status = 1; 5922 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5923 } 5924 5925 if (ni != NULL) { 5926 int ridx __unused; 5927 #ifdef LINUXKPI_DEBUG_80211 5928 int old_rate; 5929 5930 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5931 #endif 5932 txs.pktlen = skb->len; 5933 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5934 if (info->status.rates[0].count > 1) { 5935 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5936 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5937 } 5938 #if 0 /* Unused in net80211 currently. */ 5939 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5940 txs.final_rate = info->status.rates[0].idx; 5941 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5942 #endif 5943 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5944 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5945 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5946 } 5947 5948 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5949 ieee80211_ratectl_tx_complete(ni, &txs); 5950 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5951 5952 #ifdef LINUXKPI_DEBUG_80211 5953 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5954 printf("TX-RATE: %s: old %d new %d ridx %d, " 5955 "long_retries %d\n", __func__, 5956 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5957 ridx, txs.long_retries); 5958 } 5959 #endif 5960 } 5961 5962 #ifdef LINUXKPI_DEBUG_80211 5963 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5964 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5965 "band %u hw_queue %u tx_time_est %d : " 5966 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5967 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5968 "tx_time %u flags %#x " 5969 "status_driver_data [ %p %p ]\n", 5970 __func__, hw, skb, status, info->flags, 5971 info->band, info->hw_queue, info->tx_time_est, 5972 info->status.rates[0].idx, info->status.rates[0].count, 5973 info->status.rates[0].flags, 5974 info->status.rates[1].idx, info->status.rates[1].count, 5975 info->status.rates[1].flags, 5976 info->status.rates[2].idx, info->status.rates[2].count, 5977 info->status.rates[2].flags, 5978 info->status.rates[3].idx, info->status.rates[3].count, 5979 info->status.rates[3].flags, 5980 info->status.ack_signal, info->status.ampdu_ack_len, 5981 info->status.ampdu_len, info->status.antenna, 5982 info->status.tx_time, info->status.flags, 5983 info->status.status_driver_data[0], 5984 info->status.status_driver_data[1]); 5985 #endif 5986 5987 if (txstat->free_list) { 5988 _lkpi_ieee80211_free_txskb(hw, skb, status); 5989 list_add_tail(&skb->list, txstat->free_list); 5990 } else { 5991 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5992 } 5993 } 5994 5995 void 5996 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5997 { 5998 struct ieee80211_tx_status status; 5999 6000 memset(&status, 0, sizeof(status)); 6001 status.info = IEEE80211_SKB_CB(skb); 6002 status.skb = skb; 6003 /* sta, n_rates, rates, free_list? */ 6004 6005 ieee80211_tx_status_ext(hw, &status); 6006 } 6007 6008 /* 6009 * This is an internal bandaid for the moment for the way we glue 6010 * skbs and mbufs together for TX. Once we have skbs backed by 6011 * mbufs this should go away. 6012 * This is a public function but kept on the private KPI (lkpi_) 6013 * and is not exposed by a header file. 6014 */ 6015 static void 6016 lkpi_ieee80211_free_skb_mbuf(void *p) 6017 { 6018 struct ieee80211_node *ni; 6019 struct mbuf *m; 6020 6021 if (p == NULL) 6022 return; 6023 6024 m = (struct mbuf *)p; 6025 M_ASSERTPKTHDR(m); 6026 6027 ni = m->m_pkthdr.PH_loc.ptr; 6028 m->m_pkthdr.PH_loc.ptr = NULL; 6029 if (ni != NULL) 6030 ieee80211_free_node(ni); 6031 m_freem(m); 6032 } 6033 6034 void 6035 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 6036 struct delayed_work *w, int delay) 6037 { 6038 struct lkpi_hw *lhw; 6039 6040 /* Need to make sure hw is in a stable (non-suspended) state. */ 6041 IMPROVE(); 6042 6043 lhw = HW_TO_LHW(hw); 6044 queue_delayed_work(lhw->workq, w, delay); 6045 } 6046 6047 void 6048 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 6049 struct work_struct *w) 6050 { 6051 struct lkpi_hw *lhw; 6052 6053 /* Need to make sure hw is in a stable (non-suspended) state. */ 6054 IMPROVE(); 6055 6056 lhw = HW_TO_LHW(hw); 6057 queue_work(lhw->workq, w); 6058 } 6059 6060 struct sk_buff * 6061 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 6062 uint8_t *ssid, size_t ssid_len, size_t tailroom) 6063 { 6064 struct sk_buff *skb; 6065 struct ieee80211_frame *wh; 6066 uint8_t *p; 6067 size_t len; 6068 6069 len = sizeof(*wh); 6070 len += 2 + ssid_len; 6071 6072 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 6073 if (skb == NULL) 6074 return (NULL); 6075 6076 skb_reserve(skb, hw->extra_tx_headroom); 6077 6078 wh = skb_put_zero(skb, sizeof(*wh)); 6079 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 6080 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 6081 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 6082 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 6083 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 6084 6085 p = skb_put(skb, 2 + ssid_len); 6086 *p++ = IEEE80211_ELEMID_SSID; 6087 *p++ = ssid_len; 6088 if (ssid_len > 0) 6089 memcpy(p, ssid, ssid_len); 6090 6091 return (skb); 6092 } 6093 6094 struct sk_buff * 6095 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 6096 struct ieee80211_vif *vif) 6097 { 6098 struct lkpi_vif *lvif; 6099 struct ieee80211vap *vap; 6100 struct sk_buff *skb; 6101 struct ieee80211_frame_pspoll *psp; 6102 uint16_t v; 6103 6104 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 6105 if (skb == NULL) 6106 return (NULL); 6107 6108 skb_reserve(skb, hw->extra_tx_headroom); 6109 6110 lvif = VIF_TO_LVIF(vif); 6111 vap = LVIF_TO_VAP(lvif); 6112 6113 psp = skb_put_zero(skb, sizeof(*psp)); 6114 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 6115 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 6116 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 6117 memcpy(&psp->i_aid, &v, sizeof(v)); 6118 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 6119 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 6120 6121 return (skb); 6122 } 6123 6124 struct sk_buff * 6125 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 6126 struct ieee80211_vif *vif, int linkid, bool qos) 6127 { 6128 struct lkpi_vif *lvif; 6129 struct ieee80211vap *vap; 6130 struct sk_buff *skb; 6131 struct ieee80211_frame *nullf; 6132 6133 IMPROVE("linkid"); 6134 6135 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 6136 if (skb == NULL) 6137 return (NULL); 6138 6139 skb_reserve(skb, hw->extra_tx_headroom); 6140 6141 lvif = VIF_TO_LVIF(vif); 6142 vap = LVIF_TO_VAP(lvif); 6143 6144 nullf = skb_put_zero(skb, sizeof(*nullf)); 6145 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 6146 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 6147 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 6148 6149 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 6150 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 6151 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 6152 6153 return (skb); 6154 } 6155 6156 struct wireless_dev * 6157 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 6158 { 6159 struct lkpi_vif *lvif; 6160 6161 lvif = VIF_TO_LVIF(vif); 6162 return (&lvif->wdev); 6163 } 6164 6165 void 6166 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 6167 { 6168 struct lkpi_vif *lvif; 6169 struct ieee80211vap *vap; 6170 enum ieee80211_state nstate; 6171 int arg; 6172 6173 lvif = VIF_TO_LVIF(vif); 6174 vap = LVIF_TO_VAP(lvif); 6175 6176 /* 6177 * Go to init; otherwise we need to elaborately check state and 6178 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 6179 * Let the statemachine handle all neccessary changes. 6180 */ 6181 nstate = IEEE80211_S_INIT; 6182 arg = 0; /* Not a valid reason. */ 6183 6184 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 6185 vif, vap, ieee80211_state_name[vap->iv_state]); 6186 ieee80211_new_state(vap, nstate, arg); 6187 } 6188 6189 void 6190 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 6191 { 6192 struct lkpi_vif *lvif; 6193 struct ieee80211vap *vap; 6194 6195 lvif = VIF_TO_LVIF(vif); 6196 vap = LVIF_TO_VAP(lvif); 6197 6198 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 6199 vif, vap, ieee80211_state_name[vap->iv_state]); 6200 ieee80211_beacon_miss(vap->iv_ic); 6201 } 6202 6203 /* -------------------------------------------------------------------------- */ 6204 6205 void 6206 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 6207 { 6208 struct lkpi_hw *lhw; 6209 struct lkpi_vif *lvif; 6210 struct ieee80211_vif *vif; 6211 int ac_count, ac; 6212 6213 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 6214 __func__, qnum, hw->queues, hw)); 6215 6216 lhw = wiphy_priv(hw->wiphy); 6217 6218 /* See lkpi_ic_vap_create(). */ 6219 if (hw->queues >= IEEE80211_NUM_ACS) 6220 ac_count = IEEE80211_NUM_ACS; 6221 else 6222 ac_count = 1; 6223 6224 LKPI_80211_LHW_LVIF_LOCK(lhw); 6225 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 6226 6227 vif = LVIF_TO_VIF(lvif); 6228 for (ac = 0; ac < ac_count; ac++) { 6229 IMPROVE_TXQ("LOCKING"); 6230 if (qnum == vif->hw_queue[ac]) { 6231 #ifdef LINUXKPI_DEBUG_80211 6232 /* 6233 * For now log this to better understand 6234 * how this is supposed to work. 6235 */ 6236 if (lvif->hw_queue_stopped[ac] && 6237 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 6238 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 6239 "lvif %p vif %p ac %d qnum %d already " 6240 "stopped\n", __func__, __LINE__, 6241 lhw, hw, lvif, vif, ac, qnum); 6242 #endif 6243 lvif->hw_queue_stopped[ac] = true; 6244 } 6245 } 6246 } 6247 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 6248 } 6249 6250 void 6251 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 6252 { 6253 int i; 6254 6255 IMPROVE_TXQ("Locking; do we need further info?"); 6256 for (i = 0; i < hw->queues; i++) 6257 linuxkpi_ieee80211_stop_queue(hw, i); 6258 } 6259 6260 6261 static void 6262 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 6263 { 6264 struct lkpi_hw *lhw; 6265 struct lkpi_vif *lvif; 6266 struct lkpi_sta *lsta; 6267 int ac_count, ac, tid; 6268 6269 /* See lkpi_ic_vap_create(). */ 6270 if (hw->queues >= IEEE80211_NUM_ACS) 6271 ac_count = IEEE80211_NUM_ACS; 6272 else 6273 ac_count = 1; 6274 6275 lhw = wiphy_priv(hw->wiphy); 6276 6277 IMPROVE_TXQ("Locking"); 6278 LKPI_80211_LHW_LVIF_LOCK(lhw); 6279 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 6280 struct ieee80211_vif *vif; 6281 6282 vif = LVIF_TO_VIF(lvif); 6283 for (ac = 0; ac < ac_count; ac++) { 6284 6285 if (hwq == vif->hw_queue[ac]) { 6286 6287 /* XXX-BZ what about software scan? */ 6288 6289 #ifdef LINUXKPI_DEBUG_80211 6290 /* 6291 * For now log this to better understand 6292 * how this is supposed to work. 6293 */ 6294 if (!lvif->hw_queue_stopped[ac] && 6295 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 6296 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 6297 "lvif %p vif %p ac %d hw_q not stopped\n", 6298 __func__, __LINE__, 6299 lhw, hw, lvif, vif, ac); 6300 #endif 6301 lvif->hw_queue_stopped[ac] = false; 6302 6303 LKPI_80211_LVIF_LOCK(lvif); 6304 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 6305 struct ieee80211_sta *sta; 6306 6307 sta = LSTA_TO_STA(lsta); 6308 for (tid = 0; tid < nitems(sta->txq); tid++) { 6309 struct lkpi_txq *ltxq; 6310 6311 if (sta->txq[tid] == NULL) 6312 continue; 6313 6314 if (sta->txq[tid]->ac != ac) 6315 continue; 6316 6317 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 6318 if (!ltxq->stopped) 6319 continue; 6320 6321 ltxq->stopped = false; 6322 6323 /* XXX-BZ see when this explodes with all the locking. taskq? */ 6324 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 6325 } 6326 } 6327 LKPI_80211_LVIF_UNLOCK(lvif); 6328 } 6329 } 6330 } 6331 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 6332 } 6333 6334 void 6335 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 6336 { 6337 int i; 6338 6339 IMPROVE_TXQ("Is this all/enough here?"); 6340 for (i = 0; i < hw->queues; i++) 6341 lkpi_ieee80211_wake_queues(hw, i); 6342 } 6343 6344 void 6345 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 6346 { 6347 6348 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 6349 __func__, qnum, hw->queues, hw)); 6350 6351 lkpi_ieee80211_wake_queues(hw, qnum); 6352 } 6353 6354 /* This is just hardware queues. */ 6355 void 6356 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 6357 { 6358 struct lkpi_hw *lhw; 6359 6360 lhw = HW_TO_LHW(hw); 6361 6362 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 6363 IMPROVE_TXQ("LOCKING"); 6364 if (++lhw->txq_generation[ac] == 0) 6365 lhw->txq_generation[ac]++; 6366 } 6367 6368 struct ieee80211_txq * 6369 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 6370 { 6371 struct lkpi_hw *lhw; 6372 struct ieee80211_txq *txq; 6373 struct lkpi_txq *ltxq; 6374 6375 lhw = HW_TO_LHW(hw); 6376 txq = NULL; 6377 6378 IMPROVE_TXQ("LOCKING"); 6379 6380 /* Check that we are scheduled. */ 6381 if (lhw->txq_generation[ac] == 0) 6382 goto out; 6383 6384 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 6385 if (ltxq == NULL) 6386 goto out; 6387 if (ltxq->txq_generation == lhw->txq_generation[ac]) 6388 goto out; 6389 6390 ltxq->txq_generation = lhw->txq_generation[ac]; 6391 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 6392 txq = <xq->txq; 6393 TAILQ_ELEM_INIT(ltxq, txq_entry); 6394 6395 out: 6396 return (txq); 6397 } 6398 6399 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 6400 struct ieee80211_txq *txq, bool withoutpkts) 6401 { 6402 struct lkpi_hw *lhw; 6403 struct lkpi_txq *ltxq; 6404 bool ltxq_empty; 6405 6406 ltxq = TXQ_TO_LTXQ(txq); 6407 6408 IMPROVE_TXQ("LOCKING"); 6409 6410 /* Only schedule if work to do or asked to anyway. */ 6411 LKPI_80211_LTXQ_LOCK(ltxq); 6412 ltxq_empty = skb_queue_empty(<xq->skbq); 6413 LKPI_80211_LTXQ_UNLOCK(ltxq); 6414 if (!withoutpkts && ltxq_empty) 6415 goto out; 6416 6417 /* 6418 * Make sure we do not double-schedule. We do this by checking tqe_prev, 6419 * the previous entry in our tailq. tqe_prev is always valid if this entry 6420 * is queued, tqe_next may be NULL if this is the only element in the list. 6421 */ 6422 if (ltxq->txq_entry.tqe_prev != NULL) 6423 goto out; 6424 6425 lhw = HW_TO_LHW(hw); 6426 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 6427 out: 6428 return; 6429 } 6430 6431 void 6432 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 6433 struct ieee80211_txq *txq) 6434 { 6435 struct lkpi_hw *lhw; 6436 struct ieee80211_txq *ntxq; 6437 struct ieee80211_tx_control control; 6438 struct sk_buff *skb; 6439 6440 lhw = HW_TO_LHW(hw); 6441 6442 LKPI_80211_LHW_TXQ_LOCK(lhw); 6443 ieee80211_txq_schedule_start(hw, txq->ac); 6444 do { 6445 ntxq = ieee80211_next_txq(hw, txq->ac); 6446 if (ntxq == NULL) 6447 break; 6448 6449 memset(&control, 0, sizeof(control)); 6450 control.sta = ntxq->sta; 6451 do { 6452 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 6453 if (skb == NULL) 6454 break; 6455 lkpi_80211_mo_tx(hw, &control, skb); 6456 } while(1); 6457 6458 ieee80211_return_txq(hw, ntxq, false); 6459 } while (1); 6460 ieee80211_txq_schedule_end(hw, txq->ac); 6461 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 6462 } 6463 6464 /* -------------------------------------------------------------------------- */ 6465 6466 struct lkpi_cfg80211_bss { 6467 u_int refcnt; 6468 struct cfg80211_bss bss; 6469 }; 6470 6471 struct lkpi_cfg80211_get_bss_iter_lookup { 6472 struct wiphy *wiphy; 6473 struct linuxkpi_ieee80211_channel *chan; 6474 const uint8_t *bssid; 6475 const uint8_t *ssid; 6476 size_t ssid_len; 6477 enum ieee80211_bss_type bss_type; 6478 enum ieee80211_privacy privacy; 6479 6480 /* 6481 * Something to store a copy of the result as the net80211 scan cache 6482 * is not refoucnted so a scan entry might go away any time. 6483 */ 6484 bool match; 6485 struct cfg80211_bss *bss; 6486 }; 6487 6488 static void 6489 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6490 { 6491 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6492 size_t ielen; 6493 6494 lookup = arg; 6495 6496 /* Do not try to find another match. */ 6497 if (lookup->match) 6498 return; 6499 6500 /* Nothing to store result. */ 6501 if (lookup->bss == NULL) 6502 return; 6503 6504 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6505 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6506 /* We have no idea what to compare to as the drivers only request ANY */ 6507 return; 6508 } 6509 6510 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6511 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6512 /* We have no idea what to compare to as the drivers only request ANY */ 6513 return; 6514 } 6515 6516 if (lookup->chan != NULL) { 6517 struct linuxkpi_ieee80211_channel *chan; 6518 6519 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6520 se->se_chan->ic_freq); 6521 if (chan == NULL || chan != lookup->chan) 6522 return; 6523 } 6524 6525 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6526 return; 6527 6528 if (lookup->ssid) { 6529 if (lookup->ssid_len != se->se_ssid[1] || 6530 se->se_ssid[1] == 0) 6531 return; 6532 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6533 return; 6534 } 6535 6536 ielen = se->se_ies.len; 6537 6538 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6539 M_LKPI80211, M_NOWAIT | M_ZERO); 6540 if (lookup->bss->ies == NULL) 6541 return; 6542 6543 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6544 lookup->bss->ies->len = ielen; 6545 if (ielen) 6546 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6547 6548 lookup->match = true; 6549 } 6550 6551 struct cfg80211_bss * 6552 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6553 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6554 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6555 { 6556 struct lkpi_cfg80211_bss *lbss; 6557 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6558 struct lkpi_hw *lhw; 6559 struct ieee80211vap *vap; 6560 6561 lhw = wiphy_priv(wiphy); 6562 6563 /* Let's hope we can alloc. */ 6564 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6565 if (lbss == NULL) { 6566 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6567 return (NULL); 6568 } 6569 6570 lookup.wiphy = wiphy; 6571 lookup.chan = chan; 6572 lookup.bssid = bssid; 6573 lookup.ssid = ssid; 6574 lookup.ssid_len = ssid_len; 6575 lookup.bss_type = bss_type; 6576 lookup.privacy = privacy; 6577 lookup.match = false; 6578 lookup.bss = &lbss->bss; 6579 6580 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6581 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6582 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6583 if (!lookup.match) { 6584 free(lbss, M_LKPI80211); 6585 return (NULL); 6586 } 6587 6588 refcount_init(&lbss->refcnt, 1); 6589 return (&lbss->bss); 6590 } 6591 6592 void 6593 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6594 { 6595 struct lkpi_cfg80211_bss *lbss; 6596 6597 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6598 6599 /* Free everything again on refcount ... */ 6600 if (refcount_release(&lbss->refcnt)) { 6601 free(lbss->bss.ies, M_LKPI80211); 6602 free(lbss, M_LKPI80211); 6603 } 6604 } 6605 6606 void 6607 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6608 { 6609 struct lkpi_hw *lhw; 6610 struct ieee80211com *ic; 6611 struct ieee80211vap *vap; 6612 6613 lhw = wiphy_priv(wiphy); 6614 ic = lhw->ic; 6615 6616 /* 6617 * If we haven't called ieee80211_ifattach() yet 6618 * or there is no VAP, there are no scans to flush. 6619 */ 6620 if (ic == NULL || 6621 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6622 return; 6623 6624 /* Should only happen on the current one? Not seen it late enough. */ 6625 IEEE80211_LOCK(ic); 6626 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6627 ieee80211_scan_flush(vap); 6628 IEEE80211_UNLOCK(ic); 6629 } 6630 6631 /* -------------------------------------------------------------------------- */ 6632 6633 /* 6634 * hw->conf get initialized/set in various places for us: 6635 * - linuxkpi_ieee80211_alloc_hw(): flags 6636 * - linuxkpi_ieee80211_ifattach(): chandef 6637 * - lkpi_ic_vap_create(): listen_interval 6638 * - lkpi_ic_set_channel(): chandef, flags 6639 */ 6640 6641 int lkpi_80211_update_chandef(struct ieee80211_hw *hw, 6642 struct ieee80211_chanctx_conf *new) 6643 { 6644 struct cfg80211_chan_def *cd; 6645 uint32_t changed; 6646 int error; 6647 6648 changed = 0; 6649 if (new == NULL || new->def.chan == NULL) 6650 cd = NULL; 6651 else 6652 cd = &new->def; 6653 6654 if (cd && cd->chan != hw->conf.chandef.chan) { 6655 /* Copy; the chan pointer is fine and will stay valid. */ 6656 hw->conf.chandef = *cd; 6657 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 6658 } 6659 IMPROVE("IEEE80211_CONF_CHANGE_PS, IEEE80211_CONF_CHANGE_POWER"); 6660 6661 if (changed == 0) 6662 return (0); 6663 6664 error = lkpi_80211_mo_config(hw, changed); 6665 return (error); 6666 } 6667 6668 /* -------------------------------------------------------------------------- */ 6669 6670 MODULE_VERSION(linuxkpi_wlan, 1); 6671 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6672 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6673