drivers/staging/rtl8188eu/core/rtw_sta_mgt.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _RTW_STA_MGT_C_
  21
  22 #include <osdep_service.h>
  23 #include <drv_types.h>
  24 #include <recv_osdep.h>
  25 #include <xmit_osdep.h>
  26 #include <mlme_osdep.h>
  27 #include <sta_info.h>
  28
  29 static void _rtw_init_stainfo(struct sta_info *psta)
  30 {
  31 _func_enter_;
  32         _rtw_memset((u8 *)psta, 0, sizeof (struct sta_info));
  33
  34          _rtw_spinlock_init(&psta->lock);
  35         _rtw_init_listhead(&psta->list);
  36         _rtw_init_listhead(&psta->hash_list);
  37         _rtw_init_queue(&psta->sleep_q);
  38         psta->sleepq_len = 0;
  39
  40         _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
  41         _rtw_init_sta_recv_priv(&psta->sta_recvpriv);
  42
  43 #ifdef CONFIG_88EU_AP_MODE
  44
  45         _rtw_init_listhead(&psta->asoc_list);
  46
  47         _rtw_init_listhead(&psta->auth_list);
  48
  49         psta->expire_to = 0;
  50
  51         psta->flags = 0;
  52
  53         psta->capability = 0;
  54
  55         psta->bpairwise_key_installed = false;
  56
  57 #ifdef CONFIG_88EU_AP_MODE
  58         psta->nonerp_set = 0;
  59         psta->no_short_slot_time_set = 0;
  60         psta->no_short_preamble_set = 0;
  61         psta->no_ht_gf_set = 0;
  62         psta->no_ht_set = 0;
  63         psta->ht_20mhz_set = 0;
  64 #endif
  65
  66         psta->under_exist_checking = 0;
  67
  68         psta->keep_alive_trycnt = 0;
  69
  70 #endif  /*  CONFIG_88EU_AP_MODE */
  71
  72 _func_exit_;
  73 }
  74
  75 u32     _rtw_init_sta_priv(struct       sta_priv *pstapriv)
  76 {
  77         struct sta_info *psta;
  78         s32 i;
  79
  80 _func_enter_;
  81
  82         pstapriv->pallocated_stainfo_buf = rtw_zvmalloc(sizeof(struct sta_info) * NUM_STA + 4);
  83
  84         if (!pstapriv->pallocated_stainfo_buf)
  85                 return _FAIL;
  86
  87         pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
  88                 ((size_t)(pstapriv->pallocated_stainfo_buf) & 3);
  89
  90         _rtw_init_queue(&pstapriv->free_sta_queue);
  91
  92         _rtw_spinlock_init(&pstapriv->sta_hash_lock);
  93
  94         pstapriv->asoc_sta_count = 0;
  95         _rtw_init_queue(&pstapriv->sleep_q);
  96         _rtw_init_queue(&pstapriv->wakeup_q);
  97
  98         psta = (struct sta_info *)(pstapriv->pstainfo_buf);
  99
 100         for (i = 0; i < NUM_STA; i++) {
 101                 _rtw_init_stainfo(psta);
 102
 103                 _rtw_init_listhead(&(pstapriv->sta_hash[i]));
 104
 105                 rtw_list_insert_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue));
 106
 107                 psta++;
 108         }
 109
 110 #ifdef CONFIG_88EU_AP_MODE
 111
 112         pstapriv->sta_dz_bitmap = 0;
 113         pstapriv->tim_bitmap = 0;
 114
 115         _rtw_init_listhead(&pstapriv->asoc_list);
 116         _rtw_init_listhead(&pstapriv->auth_list);
 117         _rtw_spinlock_init(&pstapriv->asoc_list_lock);
 118         _rtw_spinlock_init(&pstapriv->auth_list_lock);
 119         pstapriv->asoc_list_cnt = 0;
 120         pstapriv->auth_list_cnt = 0;
 121
 122         pstapriv->auth_to = 3; /*  3*2 = 6 sec */
 123         pstapriv->assoc_to = 3;
 124         pstapriv->expire_to = 3; /*  3*2 = 6 sec */
 125         pstapriv->max_num_sta = NUM_STA;
 126 #endif
 127
 128 _func_exit_;
 129
 130         return _SUCCESS;
 131 }
 132
 133 inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta)
 134 {
 135         int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info);
 136
 137         if (!stainfo_offset_valid(offset))
 138                 DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
 139
 140         return offset;
 141 }
 142
 143 inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset)
 144 {
 145         if (!stainfo_offset_valid(offset))
 146                 DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
 147
 148         return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info));
 149 }
 150
 151 void    _rtw_free_sta_xmit_priv_lock(struct sta_xmit_priv *psta_xmitpriv);
 152 void    _rtw_free_sta_xmit_priv_lock(struct sta_xmit_priv *psta_xmitpriv)
 153 {
 154 _func_enter_;
 155
 156         _rtw_spinlock_free(&psta_xmitpriv->lock);
 157
 158         _rtw_spinlock_free(&(psta_xmitpriv->be_q.sta_pending.lock));
 159         _rtw_spinlock_free(&(psta_xmitpriv->bk_q.sta_pending.lock));
 160         _rtw_spinlock_free(&(psta_xmitpriv->vi_q.sta_pending.lock));
 161         _rtw_spinlock_free(&(psta_xmitpriv->vo_q.sta_pending.lock));
 162 _func_exit_;
 163 }
 164
 165 static void     _rtw_free_sta_recv_priv_lock(struct sta_recv_priv *psta_recvpriv)
 166 {
 167 _func_enter_;
 168
 169         _rtw_spinlock_free(&psta_recvpriv->lock);
 170
 171         _rtw_spinlock_free(&(psta_recvpriv->defrag_q.lock));
 172
 173 _func_exit_;
 174 }
 175
 176 void rtw_mfree_stainfo(struct sta_info *psta);
 177 void rtw_mfree_stainfo(struct sta_info *psta)
 178 {
 179 _func_enter_;
 180
 181         if (&psta->lock != NULL)
 182                  _rtw_spinlock_free(&psta->lock);
 183
 184         _rtw_free_sta_xmit_priv_lock(&psta->sta_xmitpriv);
 185         _rtw_free_sta_recv_priv_lock(&psta->sta_recvpriv);
 186
 187 _func_exit_;
 188 }
 189
 190 /*  this function is used to free the memory of lock || sema for all stainfos */
 191 void rtw_mfree_all_stainfo(struct sta_priv *pstapriv);
 192 void rtw_mfree_all_stainfo(struct sta_priv *pstapriv)
 193 {
 194         unsigned long    irql;
 195         struct list_head *plist, *phead;
 196         struct sta_info *psta = NULL;
 197
 198 _func_enter_;
 199
 200         _enter_critical_bh(&pstapriv->sta_hash_lock, &irql);
 201
 202         phead = get_list_head(&pstapriv->free_sta_queue);
 203         plist = get_next(phead);
 204
 205         while ((rtw_end_of_queue_search(phead, plist)) == false) {
 206                 psta = LIST_CONTAINOR(plist, struct sta_info , list);
 207                 plist = get_next(plist);
 208
 209                 rtw_mfree_stainfo(psta);
 210         }
 211
 212         _exit_critical_bh(&pstapriv->sta_hash_lock, &irql);
 213
 214 _func_exit_;
 215 }
 216
 217 static void rtw_mfree_sta_priv_lock(struct sta_priv *pstapriv)
 218 {
 219 #ifdef CONFIG_88EU_AP_MODE
 220         struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 221 #endif
 222
 223          rtw_mfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
 224
 225         _rtw_spinlock_free(&pstapriv->free_sta_queue.lock);
 226
 227         _rtw_spinlock_free(&pstapriv->sta_hash_lock);
 228         _rtw_spinlock_free(&pstapriv->wakeup_q.lock);
 229         _rtw_spinlock_free(&pstapriv->sleep_q.lock);
 230
 231 #ifdef CONFIG_88EU_AP_MODE
 232         _rtw_spinlock_free(&pstapriv->asoc_list_lock);
 233         _rtw_spinlock_free(&pstapriv->auth_list_lock);
 234         _rtw_spinlock_free(&pacl_list->acl_node_q.lock);
 235 #endif
 236 }
 237
 238 u32     _rtw_free_sta_priv(struct       sta_priv *pstapriv)
 239 {
 240         unsigned long   irql;
 241         struct list_head *phead, *plist;
 242         struct sta_info *psta = NULL;
 243         struct recv_reorder_ctrl *preorder_ctrl;
 244         int     index;
 245
 246 _func_enter_;
 247         if (pstapriv) {
 248                 /*      delete all reordering_ctrl_timer                */
 249                 _enter_critical_bh(&pstapriv->sta_hash_lock, &irql);
 250                 for (index = 0; index < NUM_STA; index++) {
 251                         phead = &(pstapriv->sta_hash[index]);
 252                         plist = get_next(phead);
 253
 254                         while ((rtw_end_of_queue_search(phead, plist)) == false) {
 255                                 int i;
 256                                 psta = LIST_CONTAINOR(plist, struct sta_info , hash_list);
 257                                 plist = get_next(plist);
 258
 259                                 for (i = 0; i < 16; i++) {
 260                                         preorder_ctrl = &psta->recvreorder_ctrl[i];
 261                                         _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer);
 262                                 }
 263                         }
 264                 }
 265                 _exit_critical_bh(&pstapriv->sta_hash_lock, &irql);
 266                 /*===============================*/
 267
 268                 rtw_mfree_sta_priv_lock(pstapriv);
 269
 270                 if (pstapriv->pallocated_stainfo_buf)
 271                         rtw_vmfree(pstapriv->pallocated_stainfo_buf, sizeof(struct sta_info)*NUM_STA+4);
 272         }
 273
 274 _func_exit_;
 275         return _SUCCESS;
 276 }
 277
 278 struct  sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 279 {
 280         unsigned long irql, irql2;
 281         s32     index;
 282         struct list_head *phash_list;
 283         struct sta_info *psta;
 284         struct __queue *pfree_sta_queue;
 285         struct recv_reorder_ctrl *preorder_ctrl;
 286         int i = 0;
 287         u16  wRxSeqInitialValue = 0xffff;
 288
 289 _func_enter_;
 290
 291         pfree_sta_queue = &pstapriv->free_sta_queue;
 292
 293         _enter_critical_bh(&(pfree_sta_queue->lock), &irql);
 294
 295         if (_rtw_queue_empty(pfree_sta_queue) == true) {
 296                 _exit_critical_bh(&(pfree_sta_queue->lock), &irql);
 297                 psta = NULL;
 298         } else {
 299                 psta = LIST_CONTAINOR(get_next(&pfree_sta_queue->queue), struct sta_info, list);
 300                 rtw_list_delete(&(psta->list));
 301                 _exit_critical_bh(&(pfree_sta_queue->lock), &irql);
 302                 _rtw_init_stainfo(psta);
 303                 memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
 304                 index = wifi_mac_hash(hwaddr);
 305                 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index=%x", index));
 306                 if (index >= NUM_STA) {
 307                         RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: index >= NUM_STA"));
 308                         psta = NULL;
 309                         goto exit;
 310                 }
 311                 phash_list = &(pstapriv->sta_hash[index]);
 312
 313                 _enter_critical_bh(&(pstapriv->sta_hash_lock), &irql2);
 314
 315                 rtw_list_insert_tail(&psta->hash_list, phash_list);
 316
 317                 pstapriv->asoc_sta_count++;
 318
 319                 _exit_critical_bh(&(pstapriv->sta_hash_lock), &irql2);
 320
 321 /*  Commented by Albert 2009/08/13 */
 322 /*  For the SMC router, the sequence number of first packet of WPS handshake will be 0. */
 323 /*  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. */
 324 /*  So, we initialize the tid_rxseq variable as the 0xffff. */
 325
 326                 for (i = 0; i < 16; i++)
 327                         memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2);
 328
 329                 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
 330                          ("alloc number_%d stainfo  with hwaddr = %pM\n",
 331                          pstapriv->asoc_sta_count , hwaddr));
 332
 333                 init_addba_retry_timer(pstapriv->padapter, psta);
 334
 335                 /* for A-MPDU Rx reordering buffer control */
 336                 for (i = 0; i < 16; i++) {
 337                         preorder_ctrl = &psta->recvreorder_ctrl[i];
 338
 339                         preorder_ctrl->padapter = pstapriv->padapter;
 340
 341                         preorder_ctrl->enable = false;
 342
 343                         preorder_ctrl->indicate_seq = 0xffff;
 344                         preorder_ctrl->wend_b = 0xffff;
 345                         preorder_ctrl->wsize_b = 64;/* 64; */
 346
 347                         _rtw_init_queue(&preorder_ctrl->pending_recvframe_queue);
 348
 349                         rtw_init_recv_timer(preorder_ctrl);
 350                 }
 351
 352                 /* init for DM */
 353                 psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
 354                 psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
 355
 356                 /* init for the sequence number of received management frame */
 357                 psta->RxMgmtFrameSeqNum = 0xffff;
 358         }
 359
 360 exit:
 361
 362 _func_exit_;
 363
 364         return psta;
 365 }
 366
 367 /*  using pstapriv->sta_hash_lock to protect */
 368 u32     rtw_free_stainfo(struct adapter *padapter , struct sta_info *psta)
 369 {
 370         int i;
 371         unsigned long irql0;
 372         struct __queue *pfree_sta_queue;
 373         struct recv_reorder_ctrl *preorder_ctrl;
 374         struct  sta_xmit_priv   *pstaxmitpriv;
 375         struct  xmit_priv       *pxmitpriv = &padapter->xmitpriv;
 376         struct  sta_priv *pstapriv = &padapter->stapriv;
 377
 378 _func_enter_;
 379
 380         if (psta == NULL)
 381                 goto exit;
 382
 383         pfree_sta_queue = &pstapriv->free_sta_queue;
 384
 385         pstaxmitpriv = &psta->sta_xmitpriv;
 386
 387         _enter_critical_bh(&pxmitpriv->lock, &irql0);
 388
 389         rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
 390         psta->sleepq_len = 0;
 391
 392         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
 393
 394         rtw_list_delete(&(pstaxmitpriv->vo_q.tx_pending));
 395
 396         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
 397
 398         rtw_list_delete(&(pstaxmitpriv->vi_q.tx_pending));
 399
 400         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
 401
 402         rtw_list_delete(&(pstaxmitpriv->bk_q.tx_pending));
 403
 404         rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
 405
 406         rtw_list_delete(&(pstaxmitpriv->be_q.tx_pending));
 407
 408         _exit_critical_bh(&pxmitpriv->lock, &irql0);
 409
 410         rtw_list_delete(&psta->hash_list);
 411         RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("\n free number_%d stainfo  with hwaddr=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n", pstapriv->asoc_sta_count , psta->hwaddr[0], psta->hwaddr[1], psta->hwaddr[2], psta->hwaddr[3], psta->hwaddr[4], psta->hwaddr[5]));
 412         pstapriv->asoc_sta_count--;
 413
 414         /*  re-init sta_info; 20061114 */
 415         _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
 416         _rtw_init_sta_recv_priv(&psta->sta_recvpriv);
 417
 418         _cancel_timer_ex(&psta->addba_retry_timer);
 419
 420         /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */
 421         for (i = 0; i < 16; i++) {
 422                 unsigned long irql;
 423                 struct list_head *phead, *plist;
 424                 union recv_frame *prframe;
 425                 struct __queue *ppending_recvframe_queue;
 426                 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
 427
 428                 preorder_ctrl = &psta->recvreorder_ctrl[i];
 429
 430                 _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer);
 431
 432                 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
 433
 434                 _enter_critical_bh(&ppending_recvframe_queue->lock, &irql);
 435
 436                 phead =         get_list_head(ppending_recvframe_queue);
 437                 plist = get_next(phead);
 438
 439                 while (!rtw_is_list_empty(phead)) {
 440                         prframe = LIST_CONTAINOR(plist, union recv_frame, u);
 441
 442                         plist = get_next(plist);
 443
 444                         rtw_list_delete(&(prframe->u.hdr.list));
 445
 446                         rtw_free_recvframe(prframe, pfree_recv_queue);
 447                 }
 448
 449                 _exit_critical_bh(&ppending_recvframe_queue->lock, &irql);
 450         }
 451
 452         if (!(psta->state & WIFI_AP_STATE))
 453                 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false);
 454
 455 #ifdef CONFIG_88EU_AP_MODE
 456
 457         _enter_critical_bh(&pstapriv->auth_list_lock, &irql0);
 458         if (!rtw_is_list_empty(&psta->auth_list)) {
 459                 rtw_list_delete(&psta->auth_list);
 460                 pstapriv->auth_list_cnt--;
 461         }
 462         _exit_critical_bh(&pstapriv->auth_list_lock, &irql0);
 463
 464         psta->expire_to = 0;
 465
 466         psta->sleepq_ac_len = 0;
 467         psta->qos_info = 0;
 468
 469         psta->max_sp_len = 0;
 470         psta->uapsd_bk = 0;
 471         psta->uapsd_be = 0;
 472         psta->uapsd_vi = 0;
 473         psta->uapsd_vo = 0;
 474         psta->has_legacy_ac = 0;
 475
 476         pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
 477         pstapriv->tim_bitmap &= ~BIT(psta->aid);
 478
 479         if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) {
 480                 pstapriv->sta_aid[psta->aid - 1] = NULL;
 481                 psta->aid = 0;
 482         }
 483
 484         psta->under_exist_checking = 0;
 485
 486 #endif  /*  CONFIG_88EU_AP_MODE */
 487
 488         _enter_critical_bh(&(pfree_sta_queue->lock), &irql0);
 489         rtw_list_insert_tail(&psta->list, get_list_head(pfree_sta_queue));
 490         _exit_critical_bh(&(pfree_sta_queue->lock), &irql0);
 491
 492 exit:
 493
 494 _func_exit_;
 495
 496         return _SUCCESS;
 497 }
 498
 499 /*  free all stainfo which in sta_hash[all] */
 500 void rtw_free_all_stainfo(struct adapter *padapter)
 501 {
 502         unsigned long    irql;
 503         struct list_head *plist, *phead;
 504         s32     index;
 505         struct sta_info *psta = NULL;
 506         struct  sta_priv *pstapriv = &padapter->stapriv;
 507         struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter);
 508
 509 _func_enter_;
 510
 511         if (pstapriv->asoc_sta_count == 1)
 512                 goto exit;
 513
 514         _enter_critical_bh(&pstapriv->sta_hash_lock, &irql);
 515
 516         for (index = 0; index < NUM_STA; index++) {
 517                 phead = &(pstapriv->sta_hash[index]);
 518                 plist = get_next(phead);
 519
 520                 while ((!rtw_end_of_queue_search(phead, plist))) {
 521                         psta = LIST_CONTAINOR(plist, struct sta_info , hash_list);
 522
 523                         plist = get_next(plist);
 524
 525                         if (pbcmc_stainfo != psta)
 526                                 rtw_free_stainfo(padapter , psta);
 527                 }
 528         }
 529
 530         _exit_critical_bh(&pstapriv->sta_hash_lock, &irql);
 531
 532 exit:
 533
 534 _func_exit_;
 535 }
 536
 537 /* any station allocated can be searched by hash list */
 538 struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 539 {
 540         unsigned long    irql;
 541         struct list_head *plist, *phead;
 542         struct sta_info *psta = NULL;
 543         u32     index;
 544         u8 *addr;
 545         u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 546
 547 _func_enter_;
 548
 549         if (hwaddr == NULL)
 550                 return NULL;
 551
 552         if (IS_MCAST(hwaddr))
 553                 addr = bc_addr;
 554         else
 555                 addr = hwaddr;
 556
 557         index = wifi_mac_hash(addr);
 558
 559         _enter_critical_bh(&pstapriv->sta_hash_lock, &irql);
 560
 561         phead = &(pstapriv->sta_hash[index]);
 562         plist = get_next(phead);
 563
 564         while ((!rtw_end_of_queue_search(phead, plist))) {
 565                 psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
 566
 567                 if ((_rtw_memcmp(psta->hwaddr, addr, ETH_ALEN)) == true) {
 568                         /*  if found the matched address */
 569                         break;
 570                 }
 571                 psta = NULL;
 572                 plist = get_next(plist);
 573         }
 574
 575         _exit_critical_bh(&pstapriv->sta_hash_lock, &irql);
 576 _func_exit_;
 577         return psta;
 578 }
 579
 580 u32 rtw_init_bcmc_stainfo(struct adapter *padapter)
 581 {
 582         struct sta_info         *psta;
 583         u32 res = _SUCCESS;
 584         unsigned char bcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 585         struct  sta_priv *pstapriv = &padapter->stapriv;
 586
 587 _func_enter_;
 588
 589         psta = rtw_alloc_stainfo(pstapriv, bcast_addr);
 590
 591         if (psta == NULL) {
 592                 res = _FAIL;
 593                 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo fail"));
 594                 goto exit;
 595         }
 596
 597         /*  default broadcast & multicast use macid 1 */
 598         psta->mac_id = 1;
 599
 600 exit:
 601 _func_exit_;
 602         return res;
 603 }
 604
 605 struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter)
 606 {
 607         struct sta_info         *psta;
 608         struct sta_priv         *pstapriv = &padapter->stapriv;
 609         u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 610 _func_enter_;
 611          psta = rtw_get_stainfo(pstapriv, bc_addr);
 612 _func_exit_;
 613         return psta;
 614 }
 615
 616 u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
 617 {
 618         u8 res = true;
 619 #ifdef CONFIG_88EU_AP_MODE
 620         unsigned long irql;
 621         struct list_head *plist, *phead;
 622         struct rtw_wlan_acl_node *paclnode;
 623         u8 match = false;
 624         struct sta_priv *pstapriv = &padapter->stapriv;
 625         struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 626         struct __queue *pacl_node_q = &pacl_list->acl_node_q;
 627
 628         _enter_critical_bh(&(pacl_node_q->lock), &irql);
 629         phead = get_list_head(pacl_node_q);
 630         plist = get_next(phead);
 631         while ((!rtw_end_of_queue_search(phead, plist))) {
 632                 paclnode = LIST_CONTAINOR(plist, struct rtw_wlan_acl_node, list);
 633                 plist = get_next(plist);
 634
 635                 if (_rtw_memcmp(paclnode->addr, mac_addr, ETH_ALEN)) {
 636                         if (paclnode->valid) {
 637                                 match = true;
 638                                 break;
 639                         }
 640                 }
 641         }
 642         _exit_critical_bh(&(pacl_node_q->lock), &irql);
 643
 644         if (pacl_list->mode == 1)/* accept unless in deny list */
 645                 res = (match) ? false : true;
 646         else if (pacl_list->mode == 2)/* deny unless in accept list */
 647                 res = (match) ? true : false;
 648         else
 649                  res = true;
 650
 651 #endif
 652
 653         return res;
 654 }