drivers/staging/rtl8723bs/core/rtw_sta_mgt.c

   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 = LIST_CONTAINOR(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
 158                 /*delete all reordering_ctrl_timer              */
 159                 spin_lock_bh(&pstapriv->sta_hash_lock);
 160                 for (index = 0; index < NUM_STA; index++) {
 161                         phead = &(pstapriv->sta_hash[index]);
 162                         plist = get_next(phead);
 163
 164                         while (phead != plist) {
 165                                 int i;
 166                                 psta = LIST_CONTAINOR(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                 if (pstapriv->pallocated_stainfo_buf)
 181                         vfree(pstapriv->pallocated_stainfo_buf);
 182
 183         }
 184         return _SUCCESS;
 185 }
 186
 187 /* struct       sta_info *rtw_alloc_stainfo(_queue *pfree_sta_queue, unsigned char *hwaddr) */
 188 struct  sta_info *rtw_alloc_stainfo(struct      sta_priv *pstapriv, u8 *hwaddr)
 189 {
 190         s32     index;
 191         struct list_head        *phash_list;
 192         struct sta_info *psta;
 193         struct __queue *pfree_sta_queue;
 194         struct recv_reorder_ctrl *preorder_ctrl;
 195         int i = 0;
 196         u16  wRxSeqInitialValue = 0xffff;
 197
 198         pfree_sta_queue = &pstapriv->free_sta_queue;
 199
 200         /* spin_lock_bh(&(pfree_sta_queue->lock)); */
 201         spin_lock_bh(&(pstapriv->sta_hash_lock));
 202         if (list_empty(&pfree_sta_queue->queue)) {
 203                 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */
 204                 spin_unlock_bh(&(pstapriv->sta_hash_lock));
 205                 return NULL;
 206         } else {
 207                 psta = LIST_CONTAINOR(get_next(&pfree_sta_queue->queue), struct sta_info, list);
 208
 209                 list_del_init(&(psta->list));
 210
 211                 /* spin_unlock_bh(&(pfree_sta_queue->lock)); */
 212
 213                 _rtw_init_stainfo(psta);
 214
 215                 psta->padapter = pstapriv->padapter;
 216
 217                 memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
 218
 219                 index = wifi_mac_hash(hwaddr);
 220
 221                 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index  = %x", index));
 222
 223                 if (index >= NUM_STA) {
 224                         RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: index >= NUM_STA"));
 225                         spin_unlock_bh(&(pstapriv->sta_hash_lock));
 226                         psta = NULL;
 227                         goto exit;
 228                 }
 229                 phash_list = &(pstapriv->sta_hash[index]);
 230
 231                 /* spin_lock_bh(&(pstapriv->sta_hash_lock)); */
 232
 233                 list_add_tail(&psta->hash_list, phash_list);
 234
 235                 pstapriv->asoc_sta_count++;
 236
 237                 /* spin_unlock_bh(&(pstapriv->sta_hash_lock)); */
 238
 239 /*  Commented by Albert 2009/08/13 */
 240 /*  For the SMC router, the sequence number of first packet of WPS handshake will be 0. */
 241 /*  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. */
 242 /*  So, we initialize the tid_rxseq variable as the 0xffff. */
 243
 244                 for (i = 0; i < 16; i++) {
 245                         memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2);
 246                 }
 247
 248                 RT_TRACE(
 249                         _module_rtl871x_sta_mgt_c_,
 250                         _drv_info_, (
 251                                 "alloc number_%d stainfo  with hwaddr = %x %x %x %x %x %x \n",
 252                                 pstapriv->asoc_sta_count,
 253                                 hwaddr[0],
 254                                 hwaddr[1],
 255                                 hwaddr[2],
 256                                 hwaddr[3],
 257                                 hwaddr[4],
 258                                 hwaddr[5]
 259                         )
 260                 );
 261
 262                 init_addba_retry_timer(pstapriv->padapter, psta);
 263
 264                 /* for A-MPDU Rx reordering buffer control */
 265                 for (i = 0; i < 16 ; i++) {
 266                         preorder_ctrl = &psta->recvreorder_ctrl[i];
 267
 268                         preorder_ctrl->padapter = pstapriv->padapter;
 269
 270                         preorder_ctrl->enable = false;
 271
 272                         preorder_ctrl->indicate_seq = 0xffff;
 273                         #ifdef DBG_RX_SEQ
 274                         DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d\n", __func__, __LINE__,
 275                                 preorder_ctrl->indicate_seq);
 276                         #endif
 277                         preorder_ctrl->wend_b = 0xffff;
 278                         /* preorder_ctrl->wsize_b = (NR_RECVBUFF-2); */
 279                         preorder_ctrl->wsize_b = 64;/* 64; */
 280
 281                         _rtw_init_queue(&preorder_ctrl->pending_recvframe_queue);
 282
 283                         rtw_init_recv_timer(preorder_ctrl);
 284                 }
 285
 286
 287                 /* init for DM */
 288                 psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
 289                 psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
 290
 291                 /* init for the sequence number of received management frame */
 292                 psta->RxMgmtFrameSeqNum = 0xffff;
 293                 spin_unlock_bh(&(pstapriv->sta_hash_lock));
 294                 /* alloc mac id for non-bc/mc station, */
 295                 rtw_alloc_macid(pstapriv->padapter, psta);
 296
 297         }
 298
 299 exit:
 300
 301
 302         return psta;
 303 }
 304
 305 /*  using pstapriv->sta_hash_lock to protect */
 306 u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta)
 307 {
 308         int i;
 309         struct __queue *pfree_sta_queue;
 310         struct recv_reorder_ctrl *preorder_ctrl;
 311         struct  sta_xmit_priv *pstaxmitpriv;
 312         struct  xmit_priv *pxmitpriv = &padapter->xmitpriv;
 313         struct  sta_priv *pstapriv = &padapter->stapriv;
 314         struct hw_xmit *phwxmit;
 315
 316         if (!psta)
 317                 goto exit;
 318
 319
 320         spin_lock_bh(&psta->lock);
 321         psta->state &= ~_FW_LINKED;
 322         spin_unlock_bh(&psta->lock);
 323
 324         pfree_sta_queue = &pstapriv->free_sta_queue;
 325
 326
 327         pstaxmitpriv = &psta->sta_xmitpriv;
 328
 329         /* list_del_init(&psta->sleep_list); */
 330
 331         /* list_del_init(&psta->wakeup_list); */
 332
 333         spin_lock_bh(&pxmitpriv->lock);
 334
 335         rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
 336         psta->sleepq_len = 0;
 337
 338         /* vo */
 339         /* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */
 340         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
 341         list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
 342         phwxmit = pxmitpriv->hwxmits;
 343         phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt;
 344         pstaxmitpriv->vo_q.qcnt = 0;
 345         /* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */
 346
 347         /* vi */
 348         /* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */
 349         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
 350         list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
 351         phwxmit = pxmitpriv->hwxmits+1;
 352         phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt;
 353         pstaxmitpriv->vi_q.qcnt = 0;
 354         /* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */
 355
 356         /* be */
 357         /* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */
 358         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
 359         list_del_init(&(pstaxmitpriv->be_q.tx_pending));
 360         phwxmit = pxmitpriv->hwxmits+2;
 361         phwxmit->accnt -= pstaxmitpriv->be_q.qcnt;
 362         pstaxmitpriv->be_q.qcnt = 0;
 363         /* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */
 364
 365         /* bk */
 366         /* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */
 367         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
 368         list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
 369         phwxmit = pxmitpriv->hwxmits+3;
 370         phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt;
 371         pstaxmitpriv->bk_q.qcnt = 0;
 372         /* spin_unlock_bh(&(pxmitpriv->bk_pending.lock)); */
 373
 374         spin_unlock_bh(&pxmitpriv->lock);
 375
 376         list_del_init(&psta->hash_list);
 377         RT_TRACE(
 378                 _module_rtl871x_sta_mgt_c_,
 379                 _drv_err_, (
 380                         "\n free number_%d stainfo  with hwaddr = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x \n",
 381                         pstapriv->asoc_sta_count,
 382                         psta->hwaddr[0],
 383                         psta->hwaddr[1],
 384                         psta->hwaddr[2],
 385                         psta->hwaddr[3],
 386                         psta->hwaddr[4],
 387                         psta->hwaddr[5]
 388                 )
 389         );
 390         pstapriv->asoc_sta_count--;
 391
 392         /*  re-init sta_info; 20061114 will be init in alloc_stainfo */
 393         /* _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); */
 394         /* _rtw_init_sta_recv_priv(&psta->sta_recvpriv); */
 395
 396         del_timer_sync(&psta->addba_retry_timer);
 397
 398         /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */
 399         for (i = 0; i < 16 ; i++) {
 400                 struct list_head        *phead, *plist;
 401                 union recv_frame *prframe;
 402                 struct __queue *ppending_recvframe_queue;
 403                 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
 404
 405                 preorder_ctrl = &psta->recvreorder_ctrl[i];
 406
 407                 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
 408
 409
 410                 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
 411
 412                 spin_lock_bh(&ppending_recvframe_queue->lock);
 413
 414                 phead =         get_list_head(ppending_recvframe_queue);
 415                 plist = get_next(phead);
 416
 417                 while (!list_empty(phead)) {
 418                         prframe = (union recv_frame *)plist;
 419
 420                         plist = get_next(plist);
 421
 422                         list_del_init(&(prframe->u.hdr.list));
 423
 424                         rtw_free_recvframe(prframe, pfree_recv_queue);
 425                 }
 426
 427                 spin_unlock_bh(&ppending_recvframe_queue->lock);
 428
 429         }
 430
 431         if (!(psta->state & WIFI_AP_STATE))
 432                 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false);
 433
 434         /* release mac id for non-bc/mc station, */
 435         rtw_release_macid(pstapriv->padapter, psta);
 436
 437 /*
 438         spin_lock_bh(&pstapriv->asoc_list_lock);
 439         list_del_init(&psta->asoc_list);
 440         spin_unlock_bh(&pstapriv->asoc_list_lock);
 441 */
 442         spin_lock_bh(&pstapriv->auth_list_lock);
 443         if (!list_empty(&psta->auth_list)) {
 444                 list_del_init(&psta->auth_list);
 445                 pstapriv->auth_list_cnt--;
 446         }
 447         spin_unlock_bh(&pstapriv->auth_list_lock);
 448
 449         psta->expire_to = 0;
 450         psta->sleepq_ac_len = 0;
 451         psta->qos_info = 0;
 452
 453         psta->max_sp_len = 0;
 454         psta->uapsd_bk = 0;
 455         psta->uapsd_be = 0;
 456         psta->uapsd_vi = 0;
 457         psta->uapsd_vo = 0;
 458
 459         psta->has_legacy_ac = 0;
 460
 461         pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
 462         pstapriv->tim_bitmap &= ~BIT(psta->aid);
 463
 464         if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) {
 465                 pstapriv->sta_aid[psta->aid - 1] = NULL;
 466                 psta->aid = 0;
 467         }
 468
 469         psta->under_exist_checking = 0;
 470
 471         /* spin_lock_bh(&(pfree_sta_queue->lock)); */
 472         list_add_tail(&psta->list, get_list_head(pfree_sta_queue));
 473         /* spin_unlock_bh(&(pfree_sta_queue->lock)); */
 474
 475 exit:
 476         return _SUCCESS;
 477 }
 478
 479 /*  free all stainfo which in sta_hash[all] */
 480 void rtw_free_all_stainfo(struct adapter *padapter)
 481 {
 482         struct list_head        *plist, *phead;
 483         s32     index;
 484         struct sta_info *psta = NULL;
 485         struct  sta_priv *pstapriv = &padapter->stapriv;
 486         struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter);
 487
 488         if (pstapriv->asoc_sta_count == 1)
 489                 return;
 490
 491         spin_lock_bh(&pstapriv->sta_hash_lock);
 492
 493         for (index = 0; index < NUM_STA; index++) {
 494                 phead = &(pstapriv->sta_hash[index]);
 495                 plist = get_next(phead);
 496
 497                 while (phead != plist) {
 498                         psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
 499
 500                         plist = get_next(plist);
 501
 502                         if (pbcmc_stainfo != psta)
 503                                 rtw_free_stainfo(padapter, psta);
 504
 505                 }
 506         }
 507
 508         spin_unlock_bh(&pstapriv->sta_hash_lock);
 509 }
 510
 511 /* any station allocated can be searched by hash list */
 512 struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 513 {
 514         struct list_head        *plist, *phead;
 515         struct sta_info *psta = NULL;
 516         u32 index;
 517         u8 *addr;
 518         u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 519
 520         if (!hwaddr)
 521                 return NULL;
 522
 523         if (IS_MCAST(hwaddr))
 524                 addr = bc_addr;
 525         else
 526                 addr = hwaddr;
 527
 528         index = wifi_mac_hash(addr);
 529
 530         spin_lock_bh(&pstapriv->sta_hash_lock);
 531
 532         phead = &(pstapriv->sta_hash[index]);
 533         plist = get_next(phead);
 534
 535
 536         while (phead != plist) {
 537
 538                 psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
 539
 540                 if ((!memcmp(psta->hwaddr, addr, ETH_ALEN)))
 541                  /*  if found the matched address */
 542                         break;
 543
 544                 psta = NULL;
 545                 plist = get_next(plist);
 546         }
 547
 548         spin_unlock_bh(&pstapriv->sta_hash_lock);
 549         return psta;
 550 }
 551
 552 u32 rtw_init_bcmc_stainfo(struct adapter *padapter)
 553 {
 554
 555         struct sta_info *psta;
 556         u32 res = _SUCCESS;
 557         NDIS_802_11_MAC_ADDRESS bcast_addr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 558
 559         struct  sta_priv *pstapriv = &padapter->stapriv;
 560         /* struct __queue       *pstapending = &padapter->xmitpriv.bm_pending; */
 561
 562         psta = rtw_alloc_stainfo(pstapriv, bcast_addr);
 563
 564         if (!psta) {
 565                 res = _FAIL;
 566                 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo fail"));
 567                 goto exit;
 568         }
 569
 570         /*  default broadcast & multicast use macid 1 */
 571         psta->mac_id = 1;
 572
 573 exit:
 574         return _SUCCESS;
 575 }
 576
 577 struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter)
 578 {
 579         struct sta_priv *pstapriv = &padapter->stapriv;
 580         u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 581
 582         return rtw_get_stainfo(pstapriv, bc_addr);
 583 }
 584
 585 u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
 586 {
 587         bool res = true;
 588         struct list_head        *plist, *phead;
 589         struct rtw_wlan_acl_node *paclnode;
 590         bool match = false;
 591         struct sta_priv *pstapriv = &padapter->stapriv;
 592         struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 593         struct __queue  *pacl_node_q = &pacl_list->acl_node_q;
 594
 595         spin_lock_bh(&(pacl_node_q->lock));
 596         phead = get_list_head(pacl_node_q);
 597         plist = get_next(phead);
 598         while (phead != plist) {
 599                 paclnode = LIST_CONTAINOR(plist, struct rtw_wlan_acl_node, list);
 600                 plist = get_next(plist);
 601
 602                 if (!memcmp(paclnode->addr, mac_addr, ETH_ALEN))
 603                         if (paclnode->valid == true) {
 604                                 match = true;
 605                                 break;
 606                         }
 607
 608         }
 609         spin_unlock_bh(&(pacl_node_q->lock));
 610
 611         if (pacl_list->mode == 1) /* accept unless in deny list */
 612                 res = !match;
 613
 614         else if (pacl_list->mode == 2)/* deny unless in accept list */
 615                 res = match;
 616         else
 617                  res = true;
 618
 619         return res;
 620 }