1 // SPDX-License-Identifier: GPL-2.0 2 /****************************************************************************** 3 * 4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. 5 * 6 ******************************************************************************/ 7 #define _RTW_STA_MGT_C_ 8 9 #include <drv_types.h> 10 #include <rtw_debug.h> 11 12 void _rtw_init_stainfo(struct sta_info *psta); 13 void _rtw_init_stainfo(struct sta_info *psta) 14 { 15 memset((u8 *)psta, 0, sizeof(struct sta_info)); 16 17 spin_lock_init(&psta->lock); 18 INIT_LIST_HEAD(&psta->list); 19 INIT_LIST_HEAD(&psta->hash_list); 20 /* INIT_LIST_HEAD(&psta->asoc_list); */ 21 /* INIT_LIST_HEAD(&psta->sleep_list); */ 22 /* INIT_LIST_HEAD(&psta->wakeup_list); */ 23 24 _rtw_init_queue(&psta->sleep_q); 25 psta->sleepq_len = 0; 26 27 _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); 28 _rtw_init_sta_recv_priv(&psta->sta_recvpriv); 29 30 INIT_LIST_HEAD(&psta->asoc_list); 31 32 INIT_LIST_HEAD(&psta->auth_list); 33 34 psta->expire_to = 0; 35 36 psta->flags = 0; 37 38 psta->capability = 0; 39 40 psta->bpairwise_key_installed = false; 41 42 psta->nonerp_set = 0; 43 psta->no_short_slot_time_set = 0; 44 psta->no_short_preamble_set = 0; 45 psta->no_ht_gf_set = 0; 46 psta->no_ht_set = 0; 47 psta->ht_20mhz_set = 0; 48 49 psta->under_exist_checking = 0; 50 51 psta->keep_alive_trycnt = 0; 52 } 53 54 u32 _rtw_init_sta_priv(struct sta_priv *pstapriv) 55 { 56 struct sta_info *psta; 57 s32 i; 58 59 pstapriv->pallocated_stainfo_buf = vzalloc(sizeof(struct sta_info) * NUM_STA+4); 60 61 if (!pstapriv->pallocated_stainfo_buf) 62 return _FAIL; 63 64 pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 - 65 ((SIZE_PTR)(pstapriv->pallocated_stainfo_buf) & 3); 66 67 _rtw_init_queue(&pstapriv->free_sta_queue); 68 69 spin_lock_init(&pstapriv->sta_hash_lock); 70 71 /* _rtw_init_queue(&pstapriv->asoc_q); */ 72 pstapriv->asoc_sta_count = 0; 73 _rtw_init_queue(&pstapriv->sleep_q); 74 _rtw_init_queue(&pstapriv->wakeup_q); 75 76 psta = (struct sta_info *)(pstapriv->pstainfo_buf); 77 78 for (i = 0; i < NUM_STA; i++) { 79 _rtw_init_stainfo(psta); 80 81 INIT_LIST_HEAD(&(pstapriv->sta_hash[i])); 82 83 list_add_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue)); 84 85 psta++; 86 } 87 88 pstapriv->sta_dz_bitmap = 0; 89 pstapriv->tim_bitmap = 0; 90 91 INIT_LIST_HEAD(&pstapriv->asoc_list); 92 INIT_LIST_HEAD(&pstapriv->auth_list); 93 spin_lock_init(&pstapriv->asoc_list_lock); 94 spin_lock_init(&pstapriv->auth_list_lock); 95 pstapriv->asoc_list_cnt = 0; 96 pstapriv->auth_list_cnt = 0; 97 98 pstapriv->auth_to = 3; /* 3*2 = 6 sec */ 99 pstapriv->assoc_to = 3; 100 pstapriv->expire_to = 3; /* 3*2 = 6 sec */ 101 pstapriv->max_num_sta = NUM_STA; 102 return _SUCCESS; 103 } 104 105 inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta) 106 { 107 int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info); 108 109 if (!stainfo_offset_valid(offset)) 110 DBG_871X("%s invalid offset(%d), out of range!!!", __func__, offset); 111 112 return offset; 113 } 114 115 inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset) 116 { 117 if (!stainfo_offset_valid(offset)) 118 DBG_871X("%s invalid offset(%d), out of range!!!", __func__, offset); 119 120 return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info)); 121 } 122 123 /* this function is used to free the memory of lock || sema for all stainfos */ 124 void kfree_all_stainfo(struct sta_priv *pstapriv); 125 void kfree_all_stainfo(struct sta_priv *pstapriv) 126 { 127 struct list_head *plist, *phead; 128 struct sta_info *psta = NULL; 129 130 spin_lock_bh(&pstapriv->sta_hash_lock); 131 132 phead = get_list_head(&pstapriv->free_sta_queue); 133 plist = get_next(phead); 134 135 while (phead != plist) { 136 psta = container_of(plist, struct sta_info, list); 137 plist = get_next(plist); 138 } 139 140 spin_unlock_bh(&pstapriv->sta_hash_lock); 141 } 142 143 void kfree_sta_priv_lock(struct sta_priv *pstapriv); 144 void kfree_sta_priv_lock(struct sta_priv *pstapriv) 145 { 146 kfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */ 147 } 148 149 u32 _rtw_free_sta_priv(struct sta_priv *pstapriv) 150 { 151 struct list_head *phead, *plist; 152 struct sta_info *psta = NULL; 153 struct recv_reorder_ctrl *preorder_ctrl; 154 int index; 155 156 if (pstapriv) { 157 /*delete all reordering_ctrl_timer */ 158 spin_lock_bh(&pstapriv->sta_hash_lock); 159 for (index = 0; index < NUM_STA; index++) { 160 phead = &(pstapriv->sta_hash[index]); 161 plist = get_next(phead); 162 163 while (phead != plist) { 164 int i; 165 166 psta = container_of(plist, struct sta_info, hash_list); 167 plist = get_next(plist); 168 169 for (i = 0; i < 16 ; i++) { 170 preorder_ctrl = &psta->recvreorder_ctrl[i]; 171 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); 172 } 173 } 174 } 175 spin_unlock_bh(&pstapriv->sta_hash_lock); 176 /*===============================*/ 177 178 kfree_sta_priv_lock(pstapriv); 179 180 vfree(pstapriv->pallocated_stainfo_buf); 181 } 182 return _SUCCESS; 183 } 184 185 /* struct sta_info *rtw_alloc_stainfo(_queue *pfree_sta_queue, unsigned char *hwaddr) */ 186 struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) 187 { 188 s32 index; 189 struct list_head *phash_list; 190 struct sta_info *psta; 191 struct __queue *pfree_sta_queue; 192 struct recv_reorder_ctrl *preorder_ctrl; 193 int i = 0; 194 u16 wRxSeqInitialValue = 0xffff; 195 196 pfree_sta_queue = &pstapriv->free_sta_queue; 197 198 /* spin_lock_bh(&(pfree_sta_queue->lock)); */ 199 spin_lock_bh(&(pstapriv->sta_hash_lock)); 200 if (list_empty(&pfree_sta_queue->queue)) { 201 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 202 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 203 return NULL; 204 } else { 205 psta = container_of(get_next(&pfree_sta_queue->queue), struct sta_info, list); 206 207 list_del_init(&(psta->list)); 208 209 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 210 211 _rtw_init_stainfo(psta); 212 213 psta->padapter = pstapriv->padapter; 214 215 memcpy(psta->hwaddr, hwaddr, ETH_ALEN); 216 217 index = wifi_mac_hash(hwaddr); 218 219 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index = %x", index)); 220 221 if (index >= NUM_STA) { 222 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: index >= NUM_STA")); 223 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 224 psta = NULL; 225 goto exit; 226 } 227 phash_list = &(pstapriv->sta_hash[index]); 228 229 /* spin_lock_bh(&(pstapriv->sta_hash_lock)); */ 230 231 list_add_tail(&psta->hash_list, phash_list); 232 233 pstapriv->asoc_sta_count++; 234 235 /* spin_unlock_bh(&(pstapriv->sta_hash_lock)); */ 236 237 /* Commented by Albert 2009/08/13 */ 238 /* For the SMC router, the sequence number of first packet of WPS handshake will be 0. */ 239 /* 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. */ 240 /* So, we initialize the tid_rxseq variable as the 0xffff. */ 241 242 for (i = 0; i < 16; i++) 243 memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2); 244 245 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, 246 ("alloc number_%d stainfo with hwaddr = %x %x %x %x %x %x \n", 247 pstapriv->asoc_sta_count, 248 hwaddr[0], 249 hwaddr[1], 250 hwaddr[2], 251 hwaddr[3], 252 hwaddr[4], 253 hwaddr[5]) 254 ); 255 256 init_addba_retry_timer(pstapriv->padapter, psta); 257 258 /* for A-MPDU Rx reordering buffer control */ 259 for (i = 0; i < 16 ; i++) { 260 preorder_ctrl = &psta->recvreorder_ctrl[i]; 261 262 preorder_ctrl->padapter = pstapriv->padapter; 263 264 preorder_ctrl->enable = false; 265 266 preorder_ctrl->indicate_seq = 0xffff; 267 #ifdef DBG_RX_SEQ 268 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d\n", __func__, __LINE__, 269 preorder_ctrl->indicate_seq); 270 #endif 271 preorder_ctrl->wend_b = 0xffff; 272 /* preorder_ctrl->wsize_b = (NR_RECVBUFF-2); */ 273 preorder_ctrl->wsize_b = 64;/* 64; */ 274 275 _rtw_init_queue(&preorder_ctrl->pending_recvframe_queue); 276 277 rtw_init_recv_timer(preorder_ctrl); 278 } 279 280 /* init for DM */ 281 psta->rssi_stat.UndecoratedSmoothedPWDB = (-1); 282 psta->rssi_stat.UndecoratedSmoothedCCK = (-1); 283 284 /* init for the sequence number of received management frame */ 285 psta->RxMgmtFrameSeqNum = 0xffff; 286 spin_unlock_bh(&(pstapriv->sta_hash_lock)); 287 /* alloc mac id for non-bc/mc station, */ 288 rtw_alloc_macid(pstapriv->padapter, psta); 289 } 290 291 exit: 292 293 return psta; 294 } 295 296 /* using pstapriv->sta_hash_lock to protect */ 297 u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta) 298 { 299 int i; 300 struct __queue *pfree_sta_queue; 301 struct recv_reorder_ctrl *preorder_ctrl; 302 struct sta_xmit_priv *pstaxmitpriv; 303 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 304 struct sta_priv *pstapriv = &padapter->stapriv; 305 struct hw_xmit *phwxmit; 306 307 if (!psta) 308 goto exit; 309 310 spin_lock_bh(&psta->lock); 311 psta->state &= ~_FW_LINKED; 312 spin_unlock_bh(&psta->lock); 313 314 pfree_sta_queue = &pstapriv->free_sta_queue; 315 316 pstaxmitpriv = &psta->sta_xmitpriv; 317 318 /* list_del_init(&psta->sleep_list); */ 319 320 /* list_del_init(&psta->wakeup_list); */ 321 322 spin_lock_bh(&pxmitpriv->lock); 323 324 rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q); 325 psta->sleepq_len = 0; 326 327 /* vo */ 328 /* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */ 329 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending); 330 list_del_init(&(pstaxmitpriv->vo_q.tx_pending)); 331 phwxmit = pxmitpriv->hwxmits; 332 phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt; 333 pstaxmitpriv->vo_q.qcnt = 0; 334 /* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */ 335 336 /* vi */ 337 /* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */ 338 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending); 339 list_del_init(&(pstaxmitpriv->vi_q.tx_pending)); 340 phwxmit = pxmitpriv->hwxmits+1; 341 phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt; 342 pstaxmitpriv->vi_q.qcnt = 0; 343 /* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */ 344 345 /* be */ 346 /* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */ 347 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending); 348 list_del_init(&(pstaxmitpriv->be_q.tx_pending)); 349 phwxmit = pxmitpriv->hwxmits+2; 350 phwxmit->accnt -= pstaxmitpriv->be_q.qcnt; 351 pstaxmitpriv->be_q.qcnt = 0; 352 /* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */ 353 354 /* bk */ 355 /* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */ 356 rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending); 357 list_del_init(&(pstaxmitpriv->bk_q.tx_pending)); 358 phwxmit = pxmitpriv->hwxmits+3; 359 phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt; 360 pstaxmitpriv->bk_q.qcnt = 0; 361 /* spin_unlock_bh(&(pxmitpriv->bk_pending.lock)); */ 362 363 spin_unlock_bh(&pxmitpriv->lock); 364 365 list_del_init(&psta->hash_list); 366 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, 367 ("\n free number_%d stainfo with hwaddr = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x \n", 368 pstapriv->asoc_sta_count, 369 psta->hwaddr[0], 370 psta->hwaddr[1], 371 psta->hwaddr[2], 372 psta->hwaddr[3], 373 psta->hwaddr[4], 374 psta->hwaddr[5]) 375 ); 376 pstapriv->asoc_sta_count--; 377 378 /* re-init sta_info; 20061114 will be init in alloc_stainfo */ 379 /* _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); */ 380 /* _rtw_init_sta_recv_priv(&psta->sta_recvpriv); */ 381 382 del_timer_sync(&psta->addba_retry_timer); 383 384 /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */ 385 for (i = 0; i < 16 ; i++) { 386 struct list_head *phead, *plist; 387 union recv_frame *prframe; 388 struct __queue *ppending_recvframe_queue; 389 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; 390 391 preorder_ctrl = &psta->recvreorder_ctrl[i]; 392 393 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); 394 395 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; 396 397 spin_lock_bh(&ppending_recvframe_queue->lock); 398 399 phead = get_list_head(ppending_recvframe_queue); 400 plist = get_next(phead); 401 402 while (!list_empty(phead)) { 403 prframe = (union recv_frame *)plist; 404 405 plist = get_next(plist); 406 407 list_del_init(&(prframe->u.hdr.list)); 408 409 rtw_free_recvframe(prframe, pfree_recv_queue); 410 } 411 412 spin_unlock_bh(&ppending_recvframe_queue->lock); 413 } 414 415 if (!(psta->state & WIFI_AP_STATE)) 416 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false); 417 418 /* release mac id for non-bc/mc station, */ 419 rtw_release_macid(pstapriv->padapter, psta); 420 421 /* 422 spin_lock_bh(&pstapriv->asoc_list_lock); 423 list_del_init(&psta->asoc_list); 424 spin_unlock_bh(&pstapriv->asoc_list_lock); 425 */ 426 spin_lock_bh(&pstapriv->auth_list_lock); 427 if (!list_empty(&psta->auth_list)) { 428 list_del_init(&psta->auth_list); 429 pstapriv->auth_list_cnt--; 430 } 431 spin_unlock_bh(&pstapriv->auth_list_lock); 432 433 psta->expire_to = 0; 434 psta->sleepq_ac_len = 0; 435 psta->qos_info = 0; 436 437 psta->max_sp_len = 0; 438 psta->uapsd_bk = 0; 439 psta->uapsd_be = 0; 440 psta->uapsd_vi = 0; 441 psta->uapsd_vo = 0; 442 443 psta->has_legacy_ac = 0; 444 445 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid); 446 pstapriv->tim_bitmap &= ~BIT(psta->aid); 447 448 if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) { 449 pstapriv->sta_aid[psta->aid - 1] = NULL; 450 psta->aid = 0; 451 } 452 453 psta->under_exist_checking = 0; 454 455 /* spin_lock_bh(&(pfree_sta_queue->lock)); */ 456 list_add_tail(&psta->list, get_list_head(pfree_sta_queue)); 457 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */ 458 459 exit: 460 return _SUCCESS; 461 } 462 463 /* free all stainfo which in sta_hash[all] */ 464 void rtw_free_all_stainfo(struct adapter *padapter) 465 { 466 struct list_head *plist, *phead; 467 s32 index; 468 struct sta_info *psta = NULL; 469 struct sta_priv *pstapriv = &padapter->stapriv; 470 struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter); 471 472 if (pstapriv->asoc_sta_count == 1) 473 return; 474 475 spin_lock_bh(&pstapriv->sta_hash_lock); 476 477 for (index = 0; index < NUM_STA; index++) { 478 phead = &(pstapriv->sta_hash[index]); 479 plist = get_next(phead); 480 481 while (phead != plist) { 482 psta = container_of(plist, struct sta_info, hash_list); 483 484 plist = get_next(plist); 485 486 if (pbcmc_stainfo != psta) 487 rtw_free_stainfo(padapter, psta); 488 } 489 } 490 491 spin_unlock_bh(&pstapriv->sta_hash_lock); 492 } 493 494 /* any station allocated can be searched by hash list */ 495 struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) 496 { 497 struct list_head *plist, *phead; 498 struct sta_info *psta = NULL; 499 u32 index; 500 u8 *addr; 501 u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 502 503 if (!hwaddr) 504 return NULL; 505 506 if (IS_MCAST(hwaddr)) 507 addr = bc_addr; 508 else 509 addr = hwaddr; 510 511 index = wifi_mac_hash(addr); 512 513 spin_lock_bh(&pstapriv->sta_hash_lock); 514 515 phead = &(pstapriv->sta_hash[index]); 516 plist = get_next(phead); 517 518 while (phead != plist) { 519 psta = container_of(plist, struct sta_info, hash_list); 520 521 if ((!memcmp(psta->hwaddr, addr, ETH_ALEN))) 522 /* if found the matched address */ 523 break; 524 525 psta = NULL; 526 plist = get_next(plist); 527 } 528 529 spin_unlock_bh(&pstapriv->sta_hash_lock); 530 return psta; 531 } 532 533 u32 rtw_init_bcmc_stainfo(struct adapter *padapter) 534 { 535 struct sta_info *psta; 536 u32 res = _SUCCESS; 537 NDIS_802_11_MAC_ADDRESS bcast_addr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 538 539 struct sta_priv *pstapriv = &padapter->stapriv; 540 /* struct __queue *pstapending = &padapter->xmitpriv.bm_pending; */ 541 542 psta = rtw_alloc_stainfo(pstapriv, bcast_addr); 543 544 if (!psta) { 545 res = _FAIL; 546 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo fail")); 547 goto exit; 548 } 549 550 /* default broadcast & multicast use macid 1 */ 551 psta->mac_id = 1; 552 553 exit: 554 return _SUCCESS; 555 } 556 557 struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter) 558 { 559 struct sta_priv *pstapriv = &padapter->stapriv; 560 u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 561 562 return rtw_get_stainfo(pstapriv, bc_addr); 563 } 564 565 u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr) 566 { 567 bool res = true; 568 struct list_head *plist, *phead; 569 struct rtw_wlan_acl_node *paclnode; 570 bool match = false; 571 struct sta_priv *pstapriv = &padapter->stapriv; 572 struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; 573 struct __queue *pacl_node_q = &pacl_list->acl_node_q; 574 575 spin_lock_bh(&(pacl_node_q->lock)); 576 phead = get_list_head(pacl_node_q); 577 plist = get_next(phead); 578 while (phead != plist) { 579 paclnode = container_of(plist, struct rtw_wlan_acl_node, list); 580 plist = get_next(plist); 581 582 if (!memcmp(paclnode->addr, mac_addr, ETH_ALEN)) 583 if (paclnode->valid == true) { 584 match = true; 585 break; 586 } 587 } 588 spin_unlock_bh(&(pacl_node_q->lock)); 589 590 if (pacl_list->mode == 1) /* accept unless in deny list */ 591 res = !match; 592 593 else if (pacl_list->mode == 2)/* deny unless in accept list */ 594 res = match; 595 else 596 res = true; 597 598 return res; 599 } 600