1// SPDX-License-Identifier: GPL-2.0 2/****************************************************************************** 3 * 4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. 5 * 6 ******************************************************************************/ 7#include <drv_types.h> 8#include <rtw_debug.h> 9 10void _rtw_init_stainfo(struct sta_info *psta); 11void _rtw_init_stainfo(struct sta_info *psta) 12{ 13 memset((u8 *)psta, 0, sizeof(struct sta_info)); 14 15 spin_lock_init(&psta->lock); 16 INIT_LIST_HEAD(&psta->list); 17 INIT_LIST_HEAD(&psta->hash_list); 18 /* INIT_LIST_HEAD(&psta->asoc_list); */ 19 /* INIT_LIST_HEAD(&psta->sleep_list); */ 20 /* INIT_LIST_HEAD(&psta->wakeup_list); */ 21 22 INIT_LIST_HEAD(&psta->sleep_q.queue); 23 spin_lock_init(&psta->sleep_q.lock); 24 psta->sleepq_len = 0; 25 26 _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); 27 _rtw_init_sta_recv_priv(&psta->sta_recvpriv); 28 29 INIT_LIST_HEAD(&psta->asoc_list); 30 31 INIT_LIST_HEAD(&psta->auth_list); 32 33 psta->expire_to = 0; 34 35 psta->flags = 0; 36 37 psta->capability = 0; 38 39 psta->bpairwise_key_installed = false; 40 41 psta->nonerp_set = 0; 42 psta->no_short_slot_time_set = 0; 43 psta->no_short_preamble_set = 0; 44 psta->no_ht_gf_set = 0; 45 psta->no_ht_set = 0; 46 psta->ht_20mhz_set = 0; 47 48 psta->under_exist_checking = 0; 49 50 psta->keep_alive_trycnt = 0; 51} 52 53u32 _rtw_init_sta_priv(struct sta_priv *pstapriv) 54{ 55 struct sta_info *psta; 56 s32 i; 57 58 pstapriv->pallocated_stainfo_buf = vzalloc(sizeof(struct sta_info) * NUM_STA+4); 59 60 if (!pstapriv->pallocated_stainfo_buf) 61 return _FAIL; 62 63 pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 - 64 ((SIZE_PTR)(pstapriv->pallocated_stainfo_buf) & 3); 65 66 INIT_LIST_HEAD(&pstapriv->free_sta_queue.queue); 67 spin_lock_init(&pstapriv->free_sta_queue.lock); 68 69 spin_lock_init(&pstapriv->sta_hash_lock); 70 71 /* _rtw_init_queue(&pstapriv->asoc_q); */ 72 pstapriv->asoc_sta_count = 0; 73 INIT_LIST_HEAD(&pstapriv->sleep_q.queue); 74 spin_lock_init(&pstapriv->sleep_q.lock); 75 INIT_LIST_HEAD(&pstapriv->wakeup_q.queue); 76 spin_lock_init(&pstapriv->wakeup_q.lock); 77 78 psta = (struct sta_info *)(pstapriv->pstainfo_buf); 79 80 for (i = 0; i < NUM_STA; i++) { 81 _rtw_init_stainfo(psta); 82 83 INIT_LIST_HEAD(&(pstapriv->sta_hash[i])); 84 85 list_add_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue)); 86 87 psta++; 88 } 89 90 pstapriv->sta_dz_bitmap = 0; 91 pstapriv->tim_bitmap = 0; 92 93 INIT_LIST_HEAD(&pstapriv->asoc_list); 94 INIT_LIST_HEAD(&pstapriv->auth_list); 95 spin_lock_init(&pstapriv->asoc_list_lock); 96 spin_lock_init(&pstapriv->auth_list_lock); 97 pstapriv->asoc_list_cnt = 0; 98 pstapriv->auth_list_cnt = 0; 99 100 pstapriv->auth_to = 3; /* 3*2 = 6 sec */ 101 pstapriv->assoc_to = 3; 102 pstapriv->expire_to = 3; /* 3*2 = 6 sec */ 103 pstapriv->max_num_sta = NUM_STA; 104 return _SUCCESS; 105} 106 107inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta) 108{ 109 int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info); 110 111 return offset; 112} 113 114inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset) 115{ 116 return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info)); 117} 118 119/* this function is used to free the memory of lock || sema for all stainfos */ 120void kfree_all_stainfo(struct sta_priv *pstapriv); 121void kfree_all_stainfo(struct sta_priv *pstapriv) 122{ 123 struct list_head *plist, *phead; 124 125 spin_lock_bh(&pstapriv->sta_hash_lock); 126 127 phead = get_list_head(&pstapriv->free_sta_queue); 128 plist = get_next(phead); 129 130 while (phead != plist) 131 plist = get_next(plist); 132 133 spin_unlock_bh(&pstapriv->sta_hash_lock); 134} 135 136void kfree_sta_priv_lock(struct sta_priv *pstapriv); 137void kfree_sta_priv_lock(struct sta_priv *pstapriv) 138{ 139 kfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */ 140} 141 142u32 _rtw_free_sta_priv(struct sta_priv *pstapriv) 143{ 144 struct list_head *phead, *plist; 145 struct sta_info *psta = NULL; 146 struct recv_reorder_ctrl *preorder_ctrl; 147 int index; 148 149 if (pstapriv) { 150 /*delete all reordering_ctrl_timer */ 151 spin_lock_bh(&pstapriv->sta_hash_lock); 152 for (index = 0; index < NUM_STA; index++) { 153 phead = &(pstapriv->sta_hash[index]); 154 list_for_each(plist, phead) { 155 int i; 156 157 psta = list_entry(plist, struct sta_info, 158 hash_list); 159 160 for (i = 0; i < 16 ; i++) { 161 preorder_ctrl = &psta->recvreorder_ctrl[i]; 162 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); 163 } 164 } 165 } 166 spin_unlock_bh(&pstapriv->sta_hash_lock); 167 /*===============================*/ 168 169 kfree_sta_priv_lock(pstapriv); 170 171 vfree(pstapriv->pallocated_stainfo_buf); 172 } 173 return _SUCCESS; 174} 175 176/* struct sta_info *rtw_alloc_stainfo(_queue *pfree_sta_queue, unsigned char *hwaddr) */ 177struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) 178{ 179 s32 index; 180 struct list_head *phash_list; 181 struct sta_info *psta; 182 struct __queue *pfree_sta_queue; 183 struct recv_reorder_ctrl *preorder_ctrl; 184 int i = 0; 185 u16 wRxSeqInitialValue = 0xffff; 186 187 pfree_sta_queue = &pstapriv->free_sta_queue; 188 189 /* spin_lock_bh(&(pfree_sta_queue->lock)); */ 190 spin_lock_bh(&(pstapriv->sta_hash_lock)); 191 if (list_empty(&pfree_sta_queue->queue)) { 192 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 193 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 194 return NULL; 195 } else { 196 psta = container_of(get_next(&pfree_sta_queue->queue), struct sta_info, list); 197 198 list_del_init(&(psta->list)); 199 200 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 201 202 _rtw_init_stainfo(psta); 203 204 psta->padapter = pstapriv->padapter; 205 206 memcpy(psta->hwaddr, hwaddr, ETH_ALEN); 207 208 index = wifi_mac_hash(hwaddr); 209 210 if (index >= NUM_STA) { 211 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 212 psta = NULL; 213 goto exit; 214 } 215 phash_list = &(pstapriv->sta_hash[index]); 216 217 /* spin_lock_bh(&(pstapriv->sta_hash_lock)); */ 218 219 list_add_tail(&psta->hash_list, phash_list); 220 221 pstapriv->asoc_sta_count++; 222 223 /* spin_unlock_bh(&(pstapriv->sta_hash_lock)); */ 224 225/* Commented by Albert 2009/08/13 */ 226/* For the SMC router, the sequence number of first packet of WPS handshake will be 0. */ 227/* In this case, this packet will be dropped by recv_decache function if we use the 0x00 as the default value for tid_rxseq variable. */ 228/* So, we initialize the tid_rxseq variable as the 0xffff. */ 229 230 for (i = 0; i < 16; i++) 231 memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2); 232 233 init_addba_retry_timer(pstapriv->padapter, psta); 234 235 /* for A-MPDU Rx reordering buffer control */ 236 for (i = 0; i < 16 ; i++) { 237 preorder_ctrl = &psta->recvreorder_ctrl[i]; 238 239 preorder_ctrl->padapter = pstapriv->padapter; 240 241 preorder_ctrl->enable = false; 242 243 preorder_ctrl->indicate_seq = 0xffff; 244 preorder_ctrl->wend_b = 0xffff; 245 /* preorder_ctrl->wsize_b = (NR_RECVBUFF-2); */ 246 preorder_ctrl->wsize_b = 64;/* 64; */ 247 248 INIT_LIST_HEAD(&preorder_ctrl->pending_recvframe_queue.queue); 249 spin_lock_init(&preorder_ctrl->pending_recvframe_queue.lock); 250 251 rtw_init_recv_timer(preorder_ctrl); 252 } 253 254 /* init for DM */ 255 psta->rssi_stat.UndecoratedSmoothedPWDB = (-1); 256 psta->rssi_stat.UndecoratedSmoothedCCK = (-1); 257 258 /* init for the sequence number of received management frame */ 259 psta->RxMgmtFrameSeqNum = 0xffff; 260 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 261 /* alloc mac id for non-bc/mc station, */ 262 rtw_alloc_macid(pstapriv->padapter, psta); 263 } 264 265exit: 266 267 return psta; 268} 269 270u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta) 271{ 272 int i; 273 struct __queue *pfree_sta_queue; 274 struct recv_reorder_ctrl *preorder_ctrl; 275 struct sta_xmit_priv *pstaxmitpriv; 276 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 277 struct sta_priv *pstapriv = &padapter->stapriv; 278 struct hw_xmit *phwxmit; 279 280 if (!psta) 281 goto exit; 282 283 spin_lock_bh(&psta->lock); 284 psta->state &= ~_FW_LINKED; 285 spin_unlock_bh(&psta->lock); 286 287 pfree_sta_queue = &pstapriv->free_sta_queue; 288 289 pstaxmitpriv = &psta->sta_xmitpriv; 290 291 /* list_del_init(&psta->sleep_list); */ 292 293 /* list_del_init(&psta->wakeup_list); */ 294 295 spin_lock_bh(&pxmitpriv->lock); 296 297 rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q); 298 psta->sleepq_len = 0; 299 300 /* vo */ 301 /* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */ 302 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending); 303 list_del_init(&(pstaxmitpriv->vo_q.tx_pending)); 304 phwxmit = pxmitpriv->hwxmits; 305 phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt; 306 pstaxmitpriv->vo_q.qcnt = 0; 307 /* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */ 308 309 /* vi */ 310 /* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */ 311 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending); 312 list_del_init(&(pstaxmitpriv->vi_q.tx_pending)); 313 phwxmit = pxmitpriv->hwxmits+1; 314 phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt; 315 pstaxmitpriv->vi_q.qcnt = 0; 316 /* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */ 317 318 /* be */ 319 /* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */ 320 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending); 321 list_del_init(&(pstaxmitpriv->be_q.tx_pending)); 322 phwxmit = pxmitpriv->hwxmits+2; 323 phwxmit->accnt -= pstaxmitpriv->be_q.qcnt; 324 pstaxmitpriv->be_q.qcnt = 0; 325 /* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */ 326 327 /* bk */ 328 /* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */ 329 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending); 330 list_del_init(&(pstaxmitpriv->bk_q.tx_pending)); 331 phwxmit = pxmitpriv->hwxmits+3; 332 phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt; 333 pstaxmitpriv->bk_q.qcnt = 0; 334 /* spin_unlock_bh(&(pxmitpriv->bk_pending.lock)); */ 335 336 spin_unlock_bh(&pxmitpriv->lock); 337 338 spin_lock_bh(&pstapriv->sta_hash_lock); 339 list_del_init(&psta->hash_list); 340 pstapriv->asoc_sta_count--; 341 spin_unlock_bh(&pstapriv->sta_hash_lock); 342 343 /* re-init sta_info; 20061114 will be init in alloc_stainfo */ 344 /* _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); */ 345 /* _rtw_init_sta_recv_priv(&psta->sta_recvpriv); */ 346 347 del_timer_sync(&psta->addba_retry_timer); 348 349 /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */ 350 for (i = 0; i < 16 ; i++) { 351 struct list_head *phead, *plist; 352 union recv_frame *prframe; 353 struct __queue *ppending_recvframe_queue; 354 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; 355 356 preorder_ctrl = &psta->recvreorder_ctrl[i]; 357 358 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); 359 360 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; 361 362 spin_lock_bh(&ppending_recvframe_queue->lock); 363 364 phead = get_list_head(ppending_recvframe_queue); 365 plist = get_next(phead); 366 367 while (!list_empty(phead)) { 368 prframe = (union recv_frame *)plist; 369 370 plist = get_next(plist); 371 372 list_del_init(&(prframe->u.hdr.list)); 373 374 rtw_free_recvframe(prframe, pfree_recv_queue); 375 } 376 377 spin_unlock_bh(&ppending_recvframe_queue->lock); 378 } 379 380 if (!(psta->state & WIFI_AP_STATE)) 381 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false); 382 383 /* release mac id for non-bc/mc station, */ 384 rtw_release_macid(pstapriv->padapter, psta); 385 386/* 387 spin_lock_bh(&pstapriv->asoc_list_lock); 388 list_del_init(&psta->asoc_list); 389 spin_unlock_bh(&pstapriv->asoc_list_lock); 390*/ 391 spin_lock_bh(&pstapriv->auth_list_lock); 392 if (!list_empty(&psta->auth_list)) { 393 list_del_init(&psta->auth_list); 394 pstapriv->auth_list_cnt--; 395 } 396 spin_unlock_bh(&pstapriv->auth_list_lock); 397 398 psta->expire_to = 0; 399 psta->sleepq_ac_len = 0; 400 psta->qos_info = 0; 401 402 psta->max_sp_len = 0; 403 psta->uapsd_bk = 0; 404 psta->uapsd_be = 0; 405 psta->uapsd_vi = 0; 406 psta->uapsd_vo = 0; 407 408 psta->has_legacy_ac = 0; 409 410 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid); 411 pstapriv->tim_bitmap &= ~BIT(psta->aid); 412 413 if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) { 414 pstapriv->sta_aid[psta->aid - 1] = NULL; 415 psta->aid = 0; 416 } 417 418 psta->under_exist_checking = 0; 419 420 /* spin_lock_bh(&(pfree_sta_queue->lock)); */ 421 list_add_tail(&psta->list, get_list_head(pfree_sta_queue)); 422 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 423 424exit: 425 return _SUCCESS; 426} 427 428/* free all stainfo which in sta_hash[all] */ 429void rtw_free_all_stainfo(struct adapter *padapter) 430{ 431 struct list_head *plist, *phead, *tmp; 432 s32 index; 433 struct sta_info *psta = NULL; 434 struct sta_priv *pstapriv = &padapter->stapriv; 435 struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter); 436 LIST_HEAD(stainfo_free_list); 437 438 if (pstapriv->asoc_sta_count == 1) 439 return; 440 441 spin_lock_bh(&pstapriv->sta_hash_lock); 442 443 for (index = 0; index < NUM_STA; index++) { 444 phead = &(pstapriv->sta_hash[index]); 445 list_for_each_safe(plist, tmp, phead) { 446 psta = list_entry(plist, struct sta_info, hash_list); 447 448 if (pbcmc_stainfo != psta) 449 list_move(&psta->hash_list, &stainfo_free_list); 450 } 451 } 452 453 spin_unlock_bh(&pstapriv->sta_hash_lock); 454 455 list_for_each_safe(plist, tmp, &stainfo_free_list) { 456 psta = list_entry(plist, struct sta_info, hash_list); 457 rtw_free_stainfo(padapter, psta); 458 } 459} 460 461/* any station allocated can be searched by hash list */ 462struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) 463{ 464 struct list_head *plist, *phead; 465 struct sta_info *psta = NULL; 466 u32 index; 467 u8 *addr; 468 u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 469 470 if (!hwaddr) 471 return NULL; 472 473 if (is_multicast_ether_addr(hwaddr)) 474 addr = bc_addr; 475 else 476 addr = hwaddr; 477 478 index = wifi_mac_hash(addr); 479 480 spin_lock_bh(&pstapriv->sta_hash_lock); 481 482 phead = &(pstapriv->sta_hash[index]); 483 list_for_each(plist, phead) { 484 psta = list_entry(plist, struct sta_info, hash_list); 485 486 if ((!memcmp(psta->hwaddr, addr, ETH_ALEN))) 487 /* if found the matched address */ 488 break; 489 490 psta = NULL; 491 } 492 493 spin_unlock_bh(&pstapriv->sta_hash_lock); 494 return psta; 495} 496 497u32 rtw_init_bcmc_stainfo(struct adapter *padapter) 498{ 499 struct sta_info *psta; 500 NDIS_802_11_MAC_ADDRESS bcast_addr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 501 502 struct sta_priv *pstapriv = &padapter->stapriv; 503 /* struct __queue *pstapending = &padapter->xmitpriv.bm_pending; */ 504 505 psta = rtw_alloc_stainfo(pstapriv, bcast_addr); 506 507 if (!psta) 508 return _FAIL; 509 510 /* default broadcast & multicast use macid 1 */ 511 psta->mac_id = 1; 512 513 return _SUCCESS; 514} 515 516struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter) 517{ 518 struct sta_priv *pstapriv = &padapter->stapriv; 519 u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 520 521 return rtw_get_stainfo(pstapriv, bc_addr); 522} 523 524u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr) 525{ 526 bool res = true; 527 struct list_head *plist, *phead; 528 struct rtw_wlan_acl_node *paclnode; 529 bool match = false; 530 struct sta_priv *pstapriv = &padapter->stapriv; 531 struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; 532 struct __queue *pacl_node_q = &pacl_list->acl_node_q; 533 534 spin_lock_bh(&(pacl_node_q->lock)); 535 phead = get_list_head(pacl_node_q); 536 list_for_each(plist, phead) { 537 paclnode = list_entry(plist, struct rtw_wlan_acl_node, list); 538 539 if (!memcmp(paclnode->addr, mac_addr, ETH_ALEN)) 540 if (paclnode->valid == true) { 541 match = true; 542 break; 543 } 544 } 545 spin_unlock_bh(&(pacl_node_q->lock)); 546 547 if (pacl_list->mode == 1) /* accept unless in deny list */ 548 res = !match; 549 550 else if (pacl_list->mode == 2)/* deny unless in accept list */ 551 res = match; 552 else 553 res = true; 554 555 return res; 556} 557