kernel/drivers/staging/rtl8188eu/core/rtw_mlme.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_MLME_C_
  21
  22
  23 #include <osdep_service.h>
  24 #include <drv_types.h>
  25 #include <recv_osdep.h>
  26 #include <xmit_osdep.h>
  27 #include <hal_intf.h>
  28 #include <mlme_osdep.h>
  29 #include <sta_info.h>
  30 #include <wifi.h>
  31 #include <wlan_bssdef.h>
  32 #include <rtw_ioctl_set.h>
  33 #include <linux/vmalloc.h>
  34
  35 extern unsigned char    MCS_rate_2R[16];
  36 extern unsigned char    MCS_rate_1R[16];
  37
  38 int rtw_init_mlme_priv(struct adapter *padapter)
  39 {
  40         int     i;
  41         u8      *pbuf;
  42         struct wlan_network     *pnetwork;
  43         struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
  44         int     res = _SUCCESS;
  45
  46         /*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
  47
  48         pmlmepriv->nic_hdl = (u8 *)padapter;
  49
  50         pmlmepriv->pscanned = NULL;
  51         pmlmepriv->fw_state = 0;
  52         pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
  53         pmlmepriv->scan_mode = SCAN_ACTIVE;/*  1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
  54
  55         spin_lock_init(&(pmlmepriv->lock));
  56         _rtw_init_queue(&(pmlmepriv->free_bss_pool));
  57         _rtw_init_queue(&(pmlmepriv->scanned_queue));
  58
  59         set_scanned_network_val(pmlmepriv, 0);
  60
  61         memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
  62
  63         pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
  64
  65         if (pbuf == NULL) {
  66                 res = _FAIL;
  67                 goto exit;
  68         }
  69         pmlmepriv->free_bss_buf = pbuf;
  70
  71         pnetwork = (struct wlan_network *)pbuf;
  72
  73         for (i = 0; i < MAX_BSS_CNT; i++) {
  74                 INIT_LIST_HEAD(&(pnetwork->list));
  75
  76                 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
  77
  78                 pnetwork++;
  79         }
  80
  81         /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
  82
  83         rtw_clear_scan_deny(padapter);
  84
  85         rtw_init_mlme_timer(padapter);
  86
  87 exit:
  88         return res;
  89 }
  90
  91 #if defined(CONFIG_88EU_AP_MODE)
  92 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
  93 {
  94         kfree(*ppie);
  95         *plen = 0;
  96         *ppie = NULL;
  97 }
  98
  99 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
 100 {
 101         rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
 102         rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
 103         rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
 104         rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
 105         rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
 106         rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
 107
 108         rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
 109         rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
 110         rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
 111         rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
 112         rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
 113 }
 114 #else
 115 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
 116 {
 117 }
 118 #endif
 119
 120 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 121 {
 122         rtw_free_mlme_priv_ie_data(pmlmepriv);
 123
 124         if (pmlmepriv) {
 125                 if (pmlmepriv->free_bss_buf)
 126                         vfree(pmlmepriv->free_bss_buf);
 127         }
 128 }
 129
 130 struct  wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
 131 {
 132         struct  wlan_network    *pnetwork;
 133         struct __queue *free_queue = &pmlmepriv->free_bss_pool;
 134         struct list_head *plist = NULL;
 135
 136         spin_lock_bh(&free_queue->lock);
 137
 138         if (list_empty(&free_queue->queue)) {
 139                 pnetwork = NULL;
 140                 goto exit;
 141         }
 142         plist = free_queue->queue.next;
 143
 144         pnetwork = container_of(plist , struct wlan_network, list);
 145
 146         list_del_init(&pnetwork->list);
 147
 148         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("_rtw_alloc_network: ptr=%p\n", plist));
 149         pnetwork->network_type = 0;
 150         pnetwork->fixed = false;
 151         pnetwork->last_scanned = jiffies;
 152         pnetwork->aid = 0;
 153         pnetwork->join_res = 0;
 154
 155         pmlmepriv->num_of_scanned++;
 156
 157 exit:
 158         spin_unlock_bh(&free_queue->lock);
 159
 160         return pnetwork;
 161 }
 162
 163 static void _rtw_free_network(struct    mlme_priv *pmlmepriv , struct wlan_network *pnetwork, u8 isfreeall)
 164 {
 165         u32 curr_time, delta_time;
 166         u32 lifetime = SCANQUEUE_LIFETIME;
 167         struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
 168
 169         if (pnetwork == NULL)
 170                 return;
 171
 172         if (pnetwork->fixed)
 173                 return;
 174         curr_time = jiffies;
 175         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
 176             (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
 177                 lifetime = 1;
 178         if (!isfreeall) {
 179                 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
 180                 if (delta_time < lifetime)/*  unit:sec */
 181                         return;
 182         }
 183         spin_lock_bh(&free_queue->lock);
 184         list_del_init(&(pnetwork->list));
 185         list_add_tail(&(pnetwork->list), &(free_queue->queue));
 186         pmlmepriv->num_of_scanned--;
 187         spin_unlock_bh(&free_queue->lock);
 188 }
 189
 190 void _rtw_free_network_nolock(struct    mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
 191 {
 192         struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
 193
 194         if (pnetwork == NULL)
 195                 return;
 196         if (pnetwork->fixed)
 197                 return;
 198         list_del_init(&(pnetwork->list));
 199         list_add_tail(&(pnetwork->list), get_list_head(free_queue));
 200         pmlmepriv->num_of_scanned--;
 201 }
 202
 203 /*
 204         return the wlan_network with the matching addr
 205
 206         Shall be calle under atomic context... to avoid possible racing condition...
 207 */
 208 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
 209 {
 210         struct list_head *phead, *plist;
 211         struct  wlan_network *pnetwork = NULL;
 212         u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
 213
 214         if (!memcmp(zero_addr, addr, ETH_ALEN)) {
 215                 pnetwork = NULL;
 216                 goto exit;
 217         }
 218         phead = get_list_head(scanned_queue);
 219         plist = phead->next;
 220
 221         while (plist != phead) {
 222                 pnetwork = container_of(plist, struct wlan_network , list);
 223                 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
 224                         break;
 225                 plist = plist->next;
 226         }
 227         if (plist == phead)
 228                 pnetwork = NULL;
 229 exit:
 230         return pnetwork;
 231 }
 232
 233
 234 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
 235 {
 236         struct list_head *phead, *plist;
 237         struct wlan_network *pnetwork;
 238         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 239         struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
 240
 241         spin_lock_bh(&scanned_queue->lock);
 242
 243         phead = get_list_head(scanned_queue);
 244         plist = phead->next;
 245
 246         while (phead != plist) {
 247                 pnetwork = container_of(plist, struct wlan_network, list);
 248
 249                 plist = plist->next;
 250
 251                 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
 252         }
 253         spin_unlock_bh(&scanned_queue->lock);
 254 }
 255
 256 int rtw_if_up(struct adapter *padapter)
 257 {
 258         int res;
 259
 260         if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
 261             (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
 262                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
 263                          ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
 264                          padapter->bDriverStopped, padapter->bSurpriseRemoved));
 265                 res = false;
 266         } else {
 267                 res =  true;
 268         }
 269         return res;
 270 }
 271
 272 void rtw_generate_random_ibss(u8 *pibss)
 273 {
 274         u32     curtime = jiffies;
 275
 276         pibss[0] = 0x02;  /* in ad-hoc mode bit1 must set to 1 */
 277         pibss[1] = 0x11;
 278         pibss[2] = 0x87;
 279         pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
 280         pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
 281         pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
 282         return;
 283 }
 284
 285 u8 *rtw_get_capability_from_ie(u8 *ie)
 286 {
 287         return ie + 8 + 2;
 288 }
 289
 290
 291 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
 292 {
 293         __le16  val;
 294
 295         memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
 296
 297         return le16_to_cpu(val);
 298 }
 299
 300 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
 301 {
 302         return ie + 8;
 303 }
 304
 305 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
 306 {
 307         return _rtw_alloc_network(pmlmepriv);
 308 }
 309
 310 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
 311                                     struct wlan_network *pnetwork)
 312 {
 313         _rtw_free_network_nolock(pmlmepriv, pnetwork);
 314 }
 315
 316 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
 317 {
 318         int ret = true;
 319         struct security_priv *psecuritypriv = &adapter->securitypriv;
 320
 321         if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
 322             (pnetwork->network.Privacy == 0))
 323                 ret = false;
 324         else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
 325                  (pnetwork->network.Privacy == 1))
 326                 ret = false;
 327         else
 328                 ret = true;
 329         return ret;
 330 }
 331
 332 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
 333 {
 334         return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
 335                !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
 336 }
 337
 338 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
 339 {
 340          u16 s_cap, d_cap;
 341         __le16 le_scap, le_dcap;
 342
 343         memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
 344         memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
 345
 346
 347         s_cap = le16_to_cpu(le_scap);
 348         d_cap = le16_to_cpu(le_dcap);
 349
 350         return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
 351                 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
 352                 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
 353                 ((s_cap & WLAN_CAPABILITY_IBSS) ==
 354                 (d_cap & WLAN_CAPABILITY_IBSS)) &&
 355                 ((s_cap & WLAN_CAPABILITY_BSS) ==
 356                 (d_cap & WLAN_CAPABILITY_BSS)));
 357 }
 358
 359 struct  wlan_network    *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
 360 {
 361         struct list_head *plist, *phead;
 362         struct  wlan_network    *pwlan = NULL;
 363         struct  wlan_network    *oldest = NULL;
 364
 365         phead = get_list_head(scanned_queue);
 366
 367         plist = phead->next;
 368
 369         while (1) {
 370                 if (phead == plist)
 371                         break;
 372
 373                 pwlan = container_of(plist, struct wlan_network, list);
 374
 375                 if (!pwlan->fixed) {
 376                         if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
 377                                 oldest = pwlan;
 378                 }
 379
 380                 plist = plist->next;
 381         }
 382         return oldest;
 383 }
 384
 385 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
 386         struct adapter *padapter, bool update_ie)
 387 {
 388         long rssi_ori = dst->Rssi;
 389         u8 sq_smp = src->PhyInfo.SignalQuality;
 390         u8 ss_final;
 391         u8 sq_final;
 392         long rssi_final;
 393
 394         rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
 395
 396         /* The rule below is 1/5 for sample value, 4/5 for history value */
 397         if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
 398                 /* Take the recvpriv's value for the connected AP*/
 399                 ss_final = padapter->recvpriv.signal_strength;
 400                 sq_final = padapter->recvpriv.signal_qual;
 401                 /* the rssi value here is undecorated, and will be used for antenna diversity */
 402                 if (sq_smp != 101) /* from the right channel */
 403                         rssi_final = (src->Rssi+dst->Rssi*4)/5;
 404                 else
 405                         rssi_final = rssi_ori;
 406         } else {
 407                 if (sq_smp != 101) { /* from the right channel */
 408                         ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
 409                         sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
 410                         rssi_final = (src->Rssi+dst->Rssi*4)/5;
 411                 } else {
 412                         /* bss info not receiving from the right channel, use the original RX signal infos */
 413                         ss_final = dst->PhyInfo.SignalStrength;
 414                         sq_final = dst->PhyInfo.SignalQuality;
 415                         rssi_final = dst->Rssi;
 416                 }
 417         }
 418         if (update_ie)
 419                 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
 420         dst->PhyInfo.SignalStrength = ss_final;
 421         dst->PhyInfo.SignalQuality = sq_final;
 422         dst->Rssi = rssi_final;
 423
 424 }
 425
 426 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
 427 {
 428         struct  mlme_priv       *pmlmepriv = &(adapter->mlmepriv);
 429
 430         if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
 431             (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
 432                 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
 433                 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
 434                                       pmlmepriv->cur_network.network.IELength);
 435         }
 436 }
 437
 438 /*
 439 Caller must hold pmlmepriv->lock first.
 440 */
 441 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
 442 {
 443         struct list_head *plist, *phead;
 444         u32     bssid_ex_sz;
 445         struct mlme_priv        *pmlmepriv = &(adapter->mlmepriv);
 446         struct __queue *queue   = &(pmlmepriv->scanned_queue);
 447         struct wlan_network     *pnetwork = NULL;
 448         struct wlan_network     *oldest = NULL;
 449
 450         spin_lock_bh(&queue->lock);
 451         phead = get_list_head(queue);
 452         plist = phead->next;
 453
 454         while (phead != plist) {
 455                 pnetwork        = container_of(plist, struct wlan_network, list);
 456
 457                 if (is_same_network(&(pnetwork->network), target))
 458                         break;
 459                 if ((oldest == ((struct wlan_network *)0)) ||
 460                     time_after(oldest->last_scanned, pnetwork->last_scanned))
 461                         oldest = pnetwork;
 462                 plist = plist->next;
 463         }
 464         /* If we didn't find a match, then get a new network slot to initialize
 465          * with this beacon's information */
 466         if (phead == plist) {
 467                 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
 468                         /* If there are no more slots, expire the oldest */
 469                         pnetwork = oldest;
 470
 471                         rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
 472                         memcpy(&(pnetwork->network), target,  get_wlan_bssid_ex_sz(target));
 473                         /*  variable initialize */
 474                         pnetwork->fixed = false;
 475                         pnetwork->last_scanned = jiffies;
 476
 477                         pnetwork->network_type = 0;
 478                         pnetwork->aid = 0;
 479                         pnetwork->join_res = 0;
 480
 481                         /* bss info not receiving from the right channel */
 482                         if (pnetwork->network.PhyInfo.SignalQuality == 101)
 483                                 pnetwork->network.PhyInfo.SignalQuality = 0;
 484                 } else {
 485                         /* Otherwise just pull from the free list */
 486
 487                         pnetwork = rtw_alloc_network(pmlmepriv); /*  will update scan_time */
 488
 489                         if (pnetwork == NULL) {
 490                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
 491                                 goto exit;
 492                         }
 493
 494                         bssid_ex_sz = get_wlan_bssid_ex_sz(target);
 495                         target->Length = bssid_ex_sz;
 496                         rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
 497                         memcpy(&(pnetwork->network), target, bssid_ex_sz);
 498
 499                         pnetwork->last_scanned = jiffies;
 500
 501                         /* bss info not receiving from the right channel */
 502                         if (pnetwork->network.PhyInfo.SignalQuality == 101)
 503                                 pnetwork->network.PhyInfo.SignalQuality = 0;
 504                         list_add_tail(&(pnetwork->list), &(queue->queue));
 505                 }
 506         } else {
 507                 /* we have an entry and we are going to update it. But this entry may
 508                  * be already expired. In this case we do the same as we found a new
 509                  * net and call the new_net handler
 510                  */
 511                 bool update_ie = true;
 512
 513                 pnetwork->last_scanned = jiffies;
 514
 515                 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
 516                 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
 517                         update_ie = false;
 518
 519                 update_network(&(pnetwork->network), target, adapter, update_ie);
 520         }
 521
 522 exit:
 523         spin_unlock_bh(&queue->lock);
 524
 525 }
 526
 527 static void rtw_add_network(struct adapter *adapter,
 528                             struct wlan_bssid_ex *pnetwork)
 529 {
 530         update_current_network(adapter, pnetwork);
 531         rtw_update_scanned_network(adapter, pnetwork);
 532 }
 533
 534 /*
 535  * select the desired network based on the capability of the (i)bss.
 536  * check items: (1) security
 537  *                      (2) network_type
 538  *                      (3) WMM
 539  *                      (4) HT
 540  *                      (5) others
 541  */
 542 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
 543 {
 544         struct security_priv *psecuritypriv = &adapter->securitypriv;
 545         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
 546         u32 desired_encmode;
 547         u32 privacy;
 548
 549         /* u8 wps_ie[512]; */
 550         uint wps_ielen;
 551
 552         int bselected = true;
 553
 554         desired_encmode = psecuritypriv->ndisencryptstatus;
 555         privacy = pnetwork->network.Privacy;
 556
 557         if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
 558                 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen) != NULL)
 559                         return true;
 560                 else
 561                         return false;
 562         }
 563         if (adapter->registrypriv.wifi_spec == 1) { /* for  correct flow of 8021X  to do.... */
 564                 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
 565                         bselected = false;
 566         }
 567
 568
 569         if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
 570                 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
 571                 bselected = false;
 572         }
 573
 574         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
 575                 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
 576                         bselected = false;
 577         }
 578
 579
 580         return bselected;
 581 }
 582
 583 /* TODO: Perry: For Power Management */
 584 void rtw_atimdone_event_callback(struct adapter *adapter , u8 *pbuf)
 585 {
 586         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
 587         return;
 588 }
 589
 590
 591 void rtw_survey_event_callback(struct adapter   *adapter, u8 *pbuf)
 592 {
 593         u32 len;
 594         struct wlan_bssid_ex *pnetwork;
 595         struct  mlme_priv       *pmlmepriv = &(adapter->mlmepriv);
 596
 597         pnetwork = (struct wlan_bssid_ex *)pbuf;
 598
 599         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n",  pnetwork->Ssid.Ssid));
 600
 601         len = get_wlan_bssid_ex_sz(pnetwork);
 602         if (len > (sizeof(struct wlan_bssid_ex))) {
 603                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
 604                 return;
 605         }
 606         spin_lock_bh(&pmlmepriv->lock);
 607
 608         /*  update IBSS_network 's timestamp */
 609         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
 610                 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
 611                         struct wlan_network *ibss_wlan = NULL;
 612
 613                         memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
 614                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
 615                         ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue,  pnetwork->MacAddress);
 616                         if (ibss_wlan) {
 617                                 memcpy(ibss_wlan->network.IEs , pnetwork->IEs, 8);
 618                                 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 619                                 goto exit;
 620                         }
 621                         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 622                 }
 623         }
 624
 625         /*  lock pmlmepriv->lock when you accessing network_q */
 626         if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
 627                 if (pnetwork->Ssid.Ssid[0] == 0)
 628                         pnetwork->Ssid.SsidLength = 0;
 629                 rtw_add_network(adapter, pnetwork);
 630         }
 631
 632 exit:
 633
 634         spin_unlock_bh(&pmlmepriv->lock);
 635         return;
 636 }
 637
 638 void rtw_surveydone_event_callback(struct adapter       *adapter, u8 *pbuf)
 639 {
 640         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 641         struct mlme_ext_priv *pmlmeext;
 642
 643         spin_lock_bh(&pmlmepriv->lock);
 644
 645         if (pmlmepriv->wps_probe_req_ie) {
 646                 pmlmepriv->wps_probe_req_ie_len = 0;
 647                 kfree(pmlmepriv->wps_probe_req_ie);
 648                 pmlmepriv->wps_probe_req_ie = NULL;
 649         }
 650
 651         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
 652
 653         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
 654                 del_timer_sync(&pmlmepriv->scan_to_timer);
 655                 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 656         } else {
 657                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status=%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
 658         }
 659
 660         rtw_set_signal_stat_timer(&adapter->recvpriv);
 661
 662         if (pmlmepriv->to_join) {
 663                 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
 664                         if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
 665                                 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 666
 667                                 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
 668                                         mod_timer(&pmlmepriv->assoc_timer,
 669                                                   jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 670                                 } else {
 671                                         struct wlan_bssid_ex    *pdev_network = &(adapter->registrypriv.dev_network);
 672                                         u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
 673
 674                                         _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 675
 676                                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
 677
 678                                         memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
 679
 680                                         rtw_update_registrypriv_dev_network(adapter);
 681                                         rtw_generate_random_ibss(pibss);
 682
 683                                         pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
 684
 685                                         if (rtw_createbss_cmd(adapter) != _SUCCESS)
 686                                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error=>rtw_createbss_cmd status FAIL\n"));
 687                                         pmlmepriv->to_join = false;
 688                                 }
 689                         }
 690                 } else {
 691                         int s_ret;
 692                         set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 693                         pmlmepriv->to_join = false;
 694                         s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
 695                         if (_SUCCESS == s_ret) {
 696                              mod_timer(&pmlmepriv->assoc_timer,
 697                                        jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 698                         } else if (s_ret == 2) { /* there is no need to wait for join */
 699                                 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 700                                 rtw_indicate_connect(adapter);
 701                         } else {
 702                                 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
 703                                 if (pmlmepriv->to_roaming != 0) {
 704                                         if (--pmlmepriv->to_roaming == 0 ||
 705                                             _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
 706                                                 pmlmepriv->to_roaming = 0;
 707                                                 rtw_free_assoc_resources(adapter, 1);
 708                                                 rtw_indicate_disconnect(adapter);
 709                                         } else {
 710                                                 pmlmepriv->to_join = true;
 711                                         }
 712                                 }
 713                                 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 714                         }
 715                 }
 716         }
 717
 718         indicate_wx_scan_complete_event(adapter);
 719
 720         spin_unlock_bh(&pmlmepriv->lock);
 721
 722         rtw_os_xmit_schedule(adapter);
 723
 724         pmlmeext = &adapter->mlmeextpriv;
 725 }
 726
 727 void rtw_dummy_event_callback(struct adapter *adapter , u8 *pbuf)
 728 {
 729 }
 730
 731 void rtw_fwdbg_event_callback(struct adapter *adapter , u8 *pbuf)
 732 {
 733 }
 734
 735 static void free_scanqueue(struct       mlme_priv *pmlmepriv)
 736 {
 737         struct __queue *free_queue = &pmlmepriv->free_bss_pool;
 738         struct __queue *scan_queue = &pmlmepriv->scanned_queue;
 739         struct list_head *plist, *phead, *ptemp;
 740
 741         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
 742         spin_lock_bh(&scan_queue->lock);
 743         spin_lock_bh(&free_queue->lock);
 744
 745         phead = get_list_head(scan_queue);
 746         plist = phead->next;
 747
 748         while (plist != phead) {
 749                 ptemp = plist->next;
 750                 list_del_init(plist);
 751                 list_add_tail(plist, &free_queue->queue);
 752                 plist = ptemp;
 753                 pmlmepriv->num_of_scanned--;
 754         }
 755
 756         spin_unlock_bh(&free_queue->lock);
 757         spin_unlock_bh(&scan_queue->lock);
 758 }
 759
 760 /*
 761 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
 762 */
 763 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
 764 {
 765         struct wlan_network *pwlan = NULL;
 766         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
 767         struct  sta_priv *pstapriv = &adapter->stapriv;
 768         struct wlan_network *tgt_network = &pmlmepriv->cur_network;
 769
 770         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
 771         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
 772                  ("tgt_network->network.MacAddress=%pM ssid=%s\n",
 773                  tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
 774
 775         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
 776                 struct sta_info *psta;
 777
 778                 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
 779
 780                 spin_lock_bh(&(pstapriv->sta_hash_lock));
 781                 rtw_free_stainfo(adapter,  psta);
 782                 spin_unlock_bh(&pstapriv->sta_hash_lock);
 783         }
 784
 785         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
 786                 struct sta_info *psta;
 787
 788                 rtw_free_all_stainfo(adapter);
 789
 790                 psta = rtw_get_bcmc_stainfo(adapter);
 791                 spin_lock_bh(&(pstapriv->sta_hash_lock));
 792                 rtw_free_stainfo(adapter, psta);
 793                 spin_unlock_bh(&pstapriv->sta_hash_lock);
 794
 795                 rtw_init_bcmc_stainfo(adapter);
 796         }
 797
 798         if (lock_scanned_queue)
 799                 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
 800
 801         pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
 802         if (pwlan)
 803                 pwlan->fixed = false;
 804         else
 805                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
 806
 807         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
 808                 rtw_free_network_nolock(pmlmepriv, pwlan);
 809
 810         if (lock_scanned_queue)
 811                 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 812         pmlmepriv->key_mask = 0;
 813 }
 814
 815 /*
 816 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
 817 */
 818 void rtw_indicate_connect(struct adapter *padapter)
 819 {
 820         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 821
 822         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
 823
 824         pmlmepriv->to_join = false;
 825
 826         if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
 827                 set_fwstate(pmlmepriv, _FW_LINKED);
 828
 829                 rtw_led_control(padapter, LED_CTL_LINK);
 830
 831                 rtw_os_indicate_connect(padapter);
 832         }
 833
 834         pmlmepriv->to_roaming = 0;
 835
 836         rtw_set_scan_deny(padapter, 3000);
 837
 838         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));
 839 }
 840
 841 /*
 842 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
 843 */
 844 void rtw_indicate_disconnect(struct adapter *padapter)
 845 {
 846         struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
 847
 848         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
 849
 850         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
 851
 852
 853         if (pmlmepriv->to_roaming > 0)
 854                 _clr_fwstate_(pmlmepriv, _FW_LINKED);
 855
 856         if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
 857             (pmlmepriv->to_roaming <= 0)) {
 858                 rtw_os_indicate_disconnect(padapter);
 859
 860                 _clr_fwstate_(pmlmepriv, _FW_LINKED);
 861                 rtw_led_control(padapter, LED_CTL_NO_LINK);
 862                 rtw_clear_scan_deny(padapter);
 863         }
 864
 865         rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
 866 }
 867
 868 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
 869 {
 870         rtw_os_indicate_scan_done(padapter, aborted);
 871 }
 872
 873 void rtw_scan_abort(struct adapter *adapter)
 874 {
 875         u32 start;
 876         struct mlme_priv        *pmlmepriv = &(adapter->mlmepriv);
 877         struct mlme_ext_priv    *pmlmeext = &(adapter->mlmeextpriv);
 878
 879         start = jiffies;
 880         pmlmeext->scan_abort = true;
 881         while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
 882                rtw_get_passing_time_ms(start) <= 200) {
 883                 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
 884                         break;
 885                 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
 886                 msleep(20);
 887         }
 888         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
 889                 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
 890                         DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
 891                 rtw_indicate_scan_done(adapter, true);
 892         }
 893         pmlmeext->scan_abort = false;
 894 }
 895
 896 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
 897 {
 898         int i;
 899         struct sta_info *bmc_sta, *psta = NULL;
 900         struct recv_reorder_ctrl *preorder_ctrl;
 901         struct sta_priv *pstapriv = &padapter->stapriv;
 902
 903         psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
 904         if (psta == NULL)
 905                 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
 906
 907         if (psta) { /* update ptarget_sta */
 908                 DBG_88E("%s\n", __func__);
 909                 psta->aid  = pnetwork->join_res;
 910                         psta->mac_id = 0;
 911                 /* sta mode */
 912                 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
 913                 /* security related */
 914                 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
 915                         padapter->securitypriv.binstallGrpkey = false;
 916                         padapter->securitypriv.busetkipkey = false;
 917                         padapter->securitypriv.bgrpkey_handshake = false;
 918                         psta->ieee8021x_blocked = true;
 919                         psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
 920                         memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
 921                         memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
 922                         memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
 923                         memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
 924                         memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
 925                 }
 926                 /*
 927                  * Commented by Albert 2012/07/21
 928                  * When doing the WPS, the wps_ie_len won't equal to 0
 929                  * And the Wi-Fi driver shouldn't allow the data
 930                  * packet to be tramsmitted.
 931                  */
 932                 if (padapter->securitypriv.wps_ie_len != 0) {
 933                         psta->ieee8021x_blocked = true;
 934                         padapter->securitypriv.wps_ie_len = 0;
 935                 }
 936                 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
 937                 /* if A-MPDU Rx is enabled, resetting  rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
 938                 /* todo: check if AP can send A-MPDU packets */
 939                 for (i = 0; i < 16; i++) {
 940                         /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
 941                         preorder_ctrl = &psta->recvreorder_ctrl[i];
 942                         preorder_ctrl->enable = false;
 943                         preorder_ctrl->indicate_seq = 0xffff;
 944                         preorder_ctrl->wend_b = 0xffff;
 945                         preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
 946                 }
 947                 bmc_sta = rtw_get_bcmc_stainfo(padapter);
 948                 if (bmc_sta) {
 949                         for (i = 0; i < 16; i++) {
 950                                 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
 951                                 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
 952                                 preorder_ctrl->enable = false;
 953                                 preorder_ctrl->indicate_seq = 0xffff;
 954                                 preorder_ctrl->wend_b = 0xffff;
 955                                 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
 956                         }
 957                 }
 958                 /* misc. */
 959                 update_sta_info(padapter, psta);
 960         }
 961         return psta;
 962 }
 963
 964 /* pnetwork: returns from rtw_joinbss_event_callback */
 965 /* ptarget_wlan: found from scanned_queue */
 966 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network  *pnetwork)
 967 {
 968         struct mlme_priv        *pmlmepriv = &(padapter->mlmepriv);
 969         struct wlan_network  *cur_network = &(pmlmepriv->cur_network);
 970
 971         DBG_88E("%s\n", __func__);
 972
 973         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
 974                  ("\nfw_state:%x, BSSID:%pM\n",
 975                  get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
 976
 977
 978         /*  why not use ptarget_wlan?? */
 979         memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
 980         /*  some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
 981         cur_network->network.IELength = ptarget_wlan->network.IELength;
 982         memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
 983
 984         cur_network->aid = pnetwork->join_res;
 985
 986
 987         rtw_set_signal_stat_timer(&padapter->recvpriv);
 988         padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
 989         padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
 990         /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
 991         padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
 992         rtw_set_signal_stat_timer(&padapter->recvpriv);
 993
 994         /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
 995         switch (pnetwork->network.InfrastructureMode) {
 996         case Ndis802_11Infrastructure:
 997                 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
 998                         pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
 999                 else
1000                         pmlmepriv->fw_state = WIFI_STATION_STATE;
1001                 break;
1002         case Ndis802_11IBSS:
1003                 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1004                 break;
1005         default:
1006                 pmlmepriv->fw_state = WIFI_NULL_STATE;
1007                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1008                 break;
1009         }
1010
1011         rtw_update_protection(padapter, (cur_network->network.IEs) +
1012                               sizeof(struct ndis_802_11_fixed_ie),
1013                               (cur_network->network.IELength));
1014         rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
1015 }
1016
1017 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1018 /* pnetwork: returns from rtw_joinbss_event_callback */
1019 /* ptarget_wlan: found from scanned_queue */
1020 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if  "ptarget_sta" & "ptarget_wlan" exist. */
1021 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1022 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1023
1024 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1025 {
1026         struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1027         struct  sta_priv *pstapriv = &adapter->stapriv;
1028         struct  mlme_priv       *pmlmepriv = &(adapter->mlmepriv);
1029         struct wlan_network     *pnetwork       = (struct wlan_network *)pbuf;
1030         struct wlan_network     *cur_network = &(pmlmepriv->cur_network);
1031         struct wlan_network     *pcur_wlan = NULL, *ptarget_wlan = NULL;
1032         unsigned int            the_same_macaddr = false;
1033
1034         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1035
1036         rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1037
1038
1039         if (pmlmepriv->assoc_ssid.SsidLength == 0)
1040                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@   joinbss event call back  for Any SSid\n"));
1041         else
1042                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@   rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1043
1044         the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1045
1046         pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1047         if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1048                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1049                 return;
1050         }
1051
1052         spin_lock_bh(&pmlmepriv->lock);
1053
1054         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1055
1056         if (pnetwork->join_res > 0) {
1057                 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1058                 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1059                         /* s1. find ptarget_wlan */
1060                         if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1061                                 if (the_same_macaddr) {
1062                                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1063                                 } else {
1064                                         pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1065                                         if (pcur_wlan)
1066                                                 pcur_wlan->fixed = false;
1067
1068                                         pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1069                                         if (pcur_sta) {
1070                                                 spin_lock_bh(&(pstapriv->sta_hash_lock));
1071                                                 rtw_free_stainfo(adapter,  pcur_sta);
1072                                                 spin_unlock_bh(&pstapriv->sta_hash_lock);
1073                                         }
1074
1075                                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1076                                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1077                                                 if (ptarget_wlan)
1078                                                         ptarget_wlan->fixed = true;
1079                                         }
1080                                 }
1081                         } else {
1082                                 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1083                                 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1084                                         if (ptarget_wlan)
1085                                                 ptarget_wlan->fixed = true;
1086                                 }
1087                         }
1088
1089                         /* s2. update cur_network */
1090                         if (ptarget_wlan) {
1091                                 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1092                         } else {
1093                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1094                                 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1095                                 goto ignore_joinbss_callback;
1096                         }
1097
1098
1099                         /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1100                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1101                                 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1102                                 if (ptarget_sta == NULL) {
1103                                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1104                                         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1105                                         goto ignore_joinbss_callback;
1106                                 }
1107                         }
1108
1109                         /* s4. indicate connect */
1110                                 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1111                                         rtw_indicate_connect(adapter);
1112                                 } else {
1113                                         /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1114                                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1115                                 }
1116
1117                         /* s5. Cancle assoc_timer */
1118                         del_timer_sync(&pmlmepriv->assoc_timer);
1119
1120                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancle assoc_timer\n"));
1121
1122                 } else {
1123                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1124                         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1125                         goto ignore_joinbss_callback;
1126                 }
1127
1128                 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1129
1130         } else if (pnetwork->join_res == -4) {
1131                 rtw_reset_securitypriv(adapter);
1132                 mod_timer(&pmlmepriv->assoc_timer,
1133                           jiffies + msecs_to_jiffies(1));
1134
1135                 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1136                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1137                         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1138                 }
1139         } else { /* if join_res < 0 (join fails), then try again */
1140                 mod_timer(&pmlmepriv->assoc_timer,
1141                           jiffies + msecs_to_jiffies(1));
1142                 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1143         }
1144
1145 ignore_joinbss_callback:
1146         spin_unlock_bh(&pmlmepriv->lock);
1147 }
1148
1149 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1150 {
1151         struct wlan_network     *pnetwork       = (struct wlan_network *)pbuf;
1152
1153         mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1154
1155         rtw_os_xmit_schedule(adapter);
1156 }
1157
1158 static u8 search_max_mac_id(struct adapter *padapter)
1159 {
1160         u8 mac_id;
1161 #if defined(CONFIG_88EU_AP_MODE)
1162         u8 aid;
1163         struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1164         struct sta_priv *pstapriv = &padapter->stapriv;
1165 #endif
1166         struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1167         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1168
1169 #if defined(CONFIG_88EU_AP_MODE)
1170         if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1171                 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1172                         if (pstapriv->sta_aid[aid-1] != NULL)
1173                                 break;
1174                 }
1175                 mac_id = aid + 1;
1176         } else
1177 #endif
1178         {/* adhoc  id =  31~2 */
1179                 for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1180                         if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1181                                 break;
1182                 }
1183         }
1184         return mac_id;
1185 }
1186
1187 /* FOR AP , AD-HOC mode */
1188 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1189 {
1190         u16 media_status;
1191         u8 macid;
1192
1193         if (psta == NULL)
1194                 return;
1195
1196         macid = search_max_mac_id(adapter);
1197         rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1198         media_status = (psta->mac_id<<8)|1; /*   MACID|OPMODE:1 connect */
1199         rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1200 }
1201
1202 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1203 {
1204         struct sta_info *psta;
1205         struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1206         struct stassoc_event    *pstassoc = (struct stassoc_event *)pbuf;
1207         struct wlan_network     *cur_network = &(pmlmepriv->cur_network);
1208         struct wlan_network     *ptarget_wlan = NULL;
1209
1210         if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1211                 return;
1212
1213 #if defined(CONFIG_88EU_AP_MODE)
1214         if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1215                 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1216                 if (psta) {
1217                         ap_sta_info_defer_update(adapter, psta);
1218                         rtw_stassoc_hw_rpt(adapter, psta);
1219                 }
1220                 return;
1221         }
1222 #endif
1223         /* for AD-HOC mode */
1224         psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1225         if (psta != NULL) {
1226                 /* the sta have been in sta_info_queue => do nothing */
1227                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1228                 return; /* between drv has received this event before and  fw have not yet to set key to CAM_ENTRY) */
1229         }
1230         psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1231         if (psta == NULL) {
1232                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1233                 return;
1234         }
1235         /* to do: init sta_info variable */
1236         psta->qos_option = 0;
1237         psta->mac_id = (uint)pstassoc->cam_id;
1238         DBG_88E("%s\n", __func__);
1239         /* for ad-hoc mode */
1240         rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1241         rtw_stassoc_hw_rpt(adapter, psta);
1242         if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1243                 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1244         psta->ieee8021x_blocked = false;
1245         spin_lock_bh(&pmlmepriv->lock);
1246         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1247             (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1248                 if (adapter->stapriv.asoc_sta_count == 2) {
1249                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1250                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1251                         if (ptarget_wlan)
1252                                 ptarget_wlan->fixed = true;
1253                         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1254                         /*  a sta + bc/mc_stainfo (not Ibss_stainfo) */
1255                         rtw_indicate_connect(adapter);
1256                 }
1257         }
1258         spin_unlock_bh(&pmlmepriv->lock);
1259         mlmeext_sta_add_event_callback(adapter, psta);
1260 }
1261
1262 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1263 {
1264         int mac_id = -1;
1265         struct sta_info *psta;
1266         struct wlan_network *pwlan = NULL;
1267         struct wlan_bssid_ex *pdev_network = NULL;
1268         u8 *pibss = NULL;
1269         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1270         struct  stadel_event *pstadel = (struct stadel_event *)pbuf;
1271         struct  sta_priv *pstapriv = &adapter->stapriv;
1272         struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1273
1274         psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1275         if (psta)
1276                 mac_id = psta->mac_id;
1277         else
1278                 mac_id = pstadel->mac_id;
1279
1280         DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1281
1282         if (mac_id >= 0) {
1283                 u16 media_status;
1284                 media_status = (mac_id<<8)|0; /*   MACID|OPMODE:0 means disconnect */
1285                 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1286                 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1287         }
1288
1289         if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1290                 return;
1291
1292         mlmeext_sta_del_event_callback(adapter);
1293
1294         spin_lock_bh(&pmlmepriv->lock);
1295
1296         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1297                 if (pmlmepriv->to_roaming > 0)
1298                         pmlmepriv->to_roaming--; /*  this stadel_event is caused by roaming, decrease to_roaming */
1299                 else if (pmlmepriv->to_roaming == 0)
1300                         pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1301
1302                 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1303                         pmlmepriv->to_roaming = 0; /*  don't roam */
1304
1305                 rtw_free_uc_swdec_pending_queue(adapter);
1306
1307                 rtw_free_assoc_resources(adapter, 1);
1308                 rtw_indicate_disconnect(adapter);
1309                 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1310                 /*  remove the network entry in scanned_queue */
1311                 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1312                 if (pwlan) {
1313                         pwlan->fixed = false;
1314                         rtw_free_network_nolock(pmlmepriv, pwlan);
1315                 }
1316                 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1317                 _rtw_roaming(adapter, tgt_network);
1318         }
1319         if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1320             check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1321                 spin_lock_bh(&(pstapriv->sta_hash_lock));
1322                 rtw_free_stainfo(adapter,  psta);
1323                 spin_unlock_bh(&pstapriv->sta_hash_lock);
1324
1325                 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1326                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1327                         /* free old ibss network */
1328                         pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1329                         if (pwlan) {
1330                                 pwlan->fixed = false;
1331                                 rtw_free_network_nolock(pmlmepriv, pwlan);
1332                         }
1333                         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1334                         /* re-create ibss */
1335                         pdev_network = &(adapter->registrypriv.dev_network);
1336                         pibss = adapter->registrypriv.dev_network.MacAddress;
1337
1338                         memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1339
1340                         memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1341
1342                         rtw_update_registrypriv_dev_network(adapter);
1343
1344                         rtw_generate_random_ibss(pibss);
1345
1346                         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1347                                 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1348                                 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1349                         }
1350
1351                         if (rtw_createbss_cmd(adapter) != _SUCCESS)
1352                                 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1353                 }
1354         }
1355         spin_unlock_bh(&pmlmepriv->lock);
1356 }
1357
1358 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1359 {
1360         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1361 }
1362
1363 /*
1364 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1365 * @adapter: pointer to struct adapter structure
1366 */
1367 void _rtw_join_timeout_handler (unsigned long data)
1368 {
1369         struct adapter *adapter = (struct adapter *)data;
1370         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
1371         int do_join_r;
1372
1373         DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1374
1375         if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1376                 return;
1377
1378
1379         spin_lock_bh(&pmlmepriv->lock);
1380
1381         if (pmlmepriv->to_roaming > 0) { /*  join timeout caused by roaming */
1382                 while (1) {
1383                         pmlmepriv->to_roaming--;
1384                         if (pmlmepriv->to_roaming != 0) { /* try another , */
1385                                 DBG_88E("%s try another roaming\n", __func__);
1386                                 do_join_r = rtw_do_join(adapter);
1387                                 if (_SUCCESS != do_join_r) {
1388                                         DBG_88E("%s roaming do_join return %d\n", __func__ , do_join_r);
1389                                         continue;
1390                                 }
1391                                 break;
1392                         } else {
1393                                 DBG_88E("%s We've try roaming but fail\n", __func__);
1394                                 rtw_indicate_disconnect(adapter);
1395                                 break;
1396                         }
1397                 }
1398         } else {
1399                 rtw_indicate_disconnect(adapter);
1400                 free_scanqueue(pmlmepriv);/*  */
1401         }
1402         spin_unlock_bh(&pmlmepriv->lock);
1403 }
1404
1405 /*
1406 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1407 * @adapter: pointer to struct adapter structure
1408 */
1409 void rtw_scan_timeout_handler (unsigned long data)
1410 {
1411         struct adapter *adapter = (struct adapter *)data;
1412         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
1413
1414         DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1415         spin_lock_bh(&pmlmepriv->lock);
1416         _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1417         spin_unlock_bh(&pmlmepriv->lock);
1418         rtw_indicate_scan_done(adapter, true);
1419 }
1420
1421 static void rtw_auto_scan_handler(struct adapter *padapter)
1422 {
1423         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1424
1425         /* auto site survey per 60sec */
1426         if (pmlmepriv->scan_interval > 0) {
1427                 pmlmepriv->scan_interval--;
1428                 if (pmlmepriv->scan_interval == 0) {
1429                         DBG_88E("%s\n", __func__);
1430                         rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1431                         pmlmepriv->scan_interval = SCAN_INTERVAL;/*  30*2 sec = 60sec */
1432                 }
1433         }
1434 }
1435
1436 void rtw_dynamic_check_timer_handlder(unsigned long data)
1437 {
1438         struct adapter *adapter = (struct adapter *)data;
1439         struct registry_priv *pregistrypriv = &adapter->registrypriv;
1440
1441         if (!adapter)
1442                 return;
1443         if (!adapter->hw_init_completed)
1444                 goto exit;
1445         if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1446                 goto exit;
1447         if (adapter->net_closed)
1448                 goto exit;
1449         rtw_dynamic_chk_wk_cmd(adapter);
1450
1451         if (pregistrypriv->wifi_spec == 1) {
1452                 /* auto site survey */
1453                 rtw_auto_scan_handler(adapter);
1454         }
1455 exit:
1456         mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1457                   jiffies + msecs_to_jiffies(2000));
1458 }
1459
1460 #define RTW_SCAN_RESULT_EXPIRE 2000
1461
1462 /*
1463 * Select a new join candidate from the original @param candidate and @param competitor
1464 * @return true: candidate is updated
1465 * @return false: candidate is not updated
1466 */
1467 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1468         , struct wlan_network **candidate, struct wlan_network *competitor)
1469 {
1470         int updated = false;
1471         struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1472
1473
1474         /* check bssid, if needed */
1475         if (pmlmepriv->assoc_by_bssid) {
1476                 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1477                         goto exit;
1478         }
1479
1480         /* check ssid, if needed */
1481         if (pmlmepriv->assoc_ssid.SsidLength) {
1482                 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1483                     !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1484                         goto exit;
1485         }
1486
1487         if (rtw_is_desired_network(adapter, competitor)  == false)
1488                 goto exit;
1489
1490         if (pmlmepriv->to_roaming) {
1491                 if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
1492                     is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1493                         goto exit;
1494         }
1495
1496         if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1497                 *candidate = competitor;
1498                 updated = true;
1499         }
1500         if (updated) {
1501                 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1502                         pmlmepriv->assoc_by_bssid,
1503                         pmlmepriv->assoc_ssid.Ssid,
1504                         (*candidate)->network.Ssid.Ssid,
1505                         (*candidate)->network.MacAddress,
1506                         (int)(*candidate)->network.Rssi);
1507                 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1508         }
1509
1510 exit:
1511         return updated;
1512 }
1513
1514 /*
1515 Calling context:
1516 The caller of the sub-routine will be in critical section...
1517 The caller must hold the following spinlock
1518 pmlmepriv->lock
1519 */
1520
1521 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1522 {
1523         int ret;
1524         struct list_head *phead;
1525         struct adapter *adapter;
1526         struct __queue *queue   = &(pmlmepriv->scanned_queue);
1527         struct  wlan_network    *pnetwork = NULL;
1528         struct  wlan_network    *candidate = NULL;
1529         u8      supp_ant_div = false;
1530
1531         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1532         phead = get_list_head(queue);
1533         adapter = (struct adapter *)pmlmepriv->nic_hdl;
1534         pmlmepriv->pscanned = phead->next;
1535         while (phead != pmlmepriv->pscanned) {
1536                 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1537                 if (pnetwork == NULL) {
1538                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1539                         ret = _FAIL;
1540                         goto exit;
1541                 }
1542                 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1543                 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1544         }
1545         if (candidate == NULL) {
1546                 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1547                 ret = _FAIL;
1548                 goto exit;
1549         } else {
1550                 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1551                         candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1552                         candidate->network.Configuration.DSConfig);
1553         }
1554
1555
1556         /*  check for situation of  _FW_LINKED */
1557         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1558                 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1559
1560                 rtw_disassoc_cmd(adapter, 0, true);
1561                 rtw_indicate_disconnect(adapter);
1562                 rtw_free_assoc_resources(adapter, 0);
1563         }
1564
1565         rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1566         if (supp_ant_div) {
1567                 u8 cur_ant;
1568                 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1569                 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1570                         (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1571                         (2 == cur_ant) ? "A" : "B"
1572                 );
1573         }
1574
1575         ret = rtw_joinbss_cmd(adapter, candidate);
1576
1577 exit:
1578         spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1579         return ret;
1580 }
1581
1582 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1583 {
1584         struct  cmd_obj *pcmd;
1585         struct  setauth_parm *psetauthparm;
1586         struct  cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1587         int             res = _SUCCESS;
1588
1589         pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1590         if (pcmd == NULL) {
1591                 res = _FAIL;  /* try again */
1592                 goto exit;
1593         }
1594
1595         psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1596         if (psetauthparm == NULL) {
1597                 kfree(pcmd);
1598                 res = _FAIL;
1599                 goto exit;
1600         }
1601         memset(psetauthparm, 0, sizeof(struct setauth_parm));
1602         psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1603         pcmd->cmdcode = _SetAuth_CMD_;
1604         pcmd->parmbuf = (unsigned char *)psetauthparm;
1605         pcmd->cmdsz =  (sizeof(struct setauth_parm));
1606         pcmd->rsp = NULL;
1607         pcmd->rspsz = 0;
1608         INIT_LIST_HEAD(&pcmd->list);
1609         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1610                  ("after enqueue set_auth_cmd, auth_mode=%x\n",
1611                  psecuritypriv->dot11AuthAlgrthm));
1612         res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1613 exit:
1614         return res;
1615 }
1616
1617 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1618 {
1619         u8      keylen;
1620         struct cmd_obj          *pcmd;
1621         struct setkey_parm      *psetkeyparm;
1622         struct cmd_priv         *pcmdpriv = &(adapter->cmdpriv);
1623         struct mlme_priv                *pmlmepriv = &(adapter->mlmepriv);
1624         int     res = _SUCCESS;
1625
1626         pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1627         if (pcmd == NULL)
1628                 return _FAIL;  /* try again */
1629
1630         psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1631         if (psetkeyparm == NULL) {
1632                 res = _FAIL;
1633                 goto err_free_cmd;
1634         }
1635
1636         memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1637
1638         if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1639                 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1640                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1641                          ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1642                          psetkeyparm->algorithm));
1643         } else {
1644                 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1645                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1646                          ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1647                          psetkeyparm->algorithm));
1648         }
1649         psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1650         psetkeyparm->set_tx = set_tx;
1651         pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1652         DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1653                 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1654         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1655                  ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1656                  psetkeyparm->algorithm, keyid));
1657
1658         switch (psetkeyparm->algorithm) {
1659         case _WEP40_:
1660                 keylen = 5;
1661                 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1662                 break;
1663         case _WEP104_:
1664                 keylen = 13;
1665                 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1666                 break;
1667         case _TKIP_:
1668                 keylen = 16;
1669                 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1670                 psetkeyparm->grpkey = 1;
1671                 break;
1672         case _AES_:
1673                 keylen = 16;
1674                 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1675                 psetkeyparm->grpkey = 1;
1676                 break;
1677         default:
1678                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1679                          ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1680                          psecuritypriv->dot11PrivacyAlgrthm));
1681                 res = _FAIL;
1682                 goto err_free_parm;
1683         }
1684         pcmd->cmdcode = _SetKey_CMD_;
1685         pcmd->parmbuf = (u8 *)psetkeyparm;
1686         pcmd->cmdsz =  (sizeof(struct setkey_parm));
1687         pcmd->rsp = NULL;
1688         pcmd->rspsz = 0;
1689         INIT_LIST_HEAD(&pcmd->list);
1690         res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1691         return res;
1692
1693 err_free_parm:
1694         kfree(psetkeyparm);
1695 err_free_cmd:
1696         kfree(pcmd);
1697         return res;
1698 }
1699
1700 /* adjust IEs for rtw_joinbss_cmd in WMM */
1701 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1702 {
1703         unsigned        int ielength = 0;
1704         unsigned int i, j;
1705
1706         i = 12; /* after the fixed IE */
1707         while (i < in_len) {
1708                 ielength = initial_out_len;
1709
1710                 if (in_ie[i] == 0xDD && in_ie[i+2] == 0x00 && in_ie[i+3] == 0x50  && in_ie[i+4] == 0xF2 && in_ie[i+5] == 0x02 && i+5 < in_len) {
1711                         /* WMM element ID and OUI */
1712                         /* Append WMM IE to the last index of out_ie */
1713
1714                         for (j = i; j < i + 9; j++) {
1715                                 out_ie[ielength] = in_ie[j];
1716                                 ielength++;
1717                         }
1718                         out_ie[initial_out_len + 1] = 0x07;
1719                         out_ie[initial_out_len + 6] = 0x00;
1720                         out_ie[initial_out_len + 8] = 0x00;
1721                         break;
1722                 }
1723                 i += (in_ie[i+1]+2); /*  to the next IE element */
1724         }
1725         return ielength;
1726 }
1727
1728 /*
1729  * Ported from 8185: IsInPreAuthKeyList().
1730  * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1731  * Added by Annie, 2006-05-07.
1732  * Search by BSSID,
1733  * Return Value:
1734  *              -1      :if there is no pre-auth key in the table
1735  *              >= 0    :if there is pre-auth key, and return the entry id
1736  */
1737 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1738 {
1739         struct security_priv *psecuritypriv = &Adapter->securitypriv;
1740         int i = 0;
1741
1742         do {
1743                 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1744                     (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1745                         break;
1746                 } else {
1747                         i++;
1748                         /* continue; */
1749                 }
1750
1751         } while (i < NUM_PMKID_CACHE);
1752
1753         if (i == NUM_PMKID_CACHE)
1754                 i = -1;/*  Could not find. */
1755
1756         return i;
1757 }
1758
1759 /*  */
1760 /*  Check the RSN IE length */
1761 /*  If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1762 /*  0-11th element in the array are the fixed IE */
1763 /*  12th element in the array is the IE */
1764 /*  13th element in the array is the IE length */
1765 /*  */
1766
1767 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1768 {
1769         struct security_priv *psecuritypriv = &Adapter->securitypriv;
1770
1771         if (ie[13] <= 20) {
1772                 /*  The RSN IE didn't include the PMK ID, append the PMK information */
1773                 ie[ie_len] = 1;
1774                 ie_len++;
1775                 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1776                 ie_len++;
1777                 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1778
1779                 ie_len += 16;
1780                 ie[13] += 18;/* PMKID length = 2+16 */
1781         }
1782         return ie_len;
1783 }
1784
1785 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1786 {
1787         u8 authmode;
1788         uint    ielength;
1789         int iEntry;
1790
1791         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1792         struct security_priv *psecuritypriv = &adapter->securitypriv;
1793         uint    ndisauthmode = psecuritypriv->ndisauthtype;
1794         uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1795
1796         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1797                  ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
1798                   ndisauthmode, ndissecuritytype));
1799
1800         /* copy fixed ie only */
1801         memcpy(out_ie, in_ie, 12);
1802         ielength = 12;
1803         if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1804             (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1805                         authmode = _WPA_IE_ID_;
1806         if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1807             (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1808                 authmode = _WPA2_IE_ID_;
1809
1810         if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1811                 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1812
1813                 ielength += psecuritypriv->wps_ie_len;
1814         } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1815                 /* copy RSN or SSN */
1816                 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1817                 ielength += psecuritypriv->supplicant_ie[1]+2;
1818                 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1819         }
1820
1821         iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1822         if (iEntry < 0) {
1823                 return ielength;
1824         } else {
1825                 if (authmode == _WPA2_IE_ID_)
1826                         ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1827         }
1828         return ielength;
1829 }
1830
1831 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1832 {
1833         struct registry_priv *pregistrypriv = &adapter->registrypriv;
1834         struct eeprom_priv *peepriv = &adapter->eeprompriv;
1835         struct wlan_bssid_ex    *pdev_network = &pregistrypriv->dev_network;
1836         u8 *myhwaddr = myid(peepriv);
1837
1838         memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1839
1840         memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1841
1842         pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1843         pdev_network->Configuration.BeaconPeriod = 100;
1844         pdev_network->Configuration.FHConfig.Length = 0;
1845         pdev_network->Configuration.FHConfig.HopPattern = 0;
1846         pdev_network->Configuration.FHConfig.HopSet = 0;
1847         pdev_network->Configuration.FHConfig.DwellTime = 0;
1848 }
1849
1850 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1851 {
1852         int sz = 0;
1853         struct registry_priv *pregistrypriv = &adapter->registrypriv;
1854         struct wlan_bssid_ex    *pdev_network = &pregistrypriv->dev_network;
1855         struct  security_priv *psecuritypriv = &adapter->securitypriv;
1856         struct  wlan_network    *cur_network = &adapter->mlmepriv.cur_network;
1857
1858         pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /*  adhoc no 802.1x */
1859
1860         pdev_network->Rssi = 0;
1861
1862         switch (pregistrypriv->wireless_mode) {
1863         case WIRELESS_11B:
1864                 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1865                 break;
1866         case WIRELESS_11G:
1867         case WIRELESS_11BG:
1868         case WIRELESS_11_24N:
1869         case WIRELESS_11G_24N:
1870         case WIRELESS_11BG_24N:
1871                 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1872                 break;
1873         case WIRELESS_11A:
1874         case WIRELESS_11A_5N:
1875                 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1876                 break;
1877         case WIRELESS_11ABGN:
1878                 if (pregistrypriv->channel > 14)
1879                         pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1880                 else
1881                         pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1882                 break;
1883         default:
1884                 /*  TODO */
1885                 break;
1886         }
1887
1888         pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1889         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1890                  ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1891                  pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1892
1893         if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1894                 pdev_network->Configuration.ATIMWindow = (0);
1895
1896         pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1897
1898         /*  1. Supported rates */
1899         /*  2. IE */
1900
1901         sz = rtw_generate_ie(pregistrypriv);
1902         pdev_network->IELength = sz;
1903         pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex  *)pdev_network);
1904
1905         /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1906         /* pdev_network->IELength = cpu_to_le32(sz); */
1907 }
1908
1909 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1910 {
1911 }
1912
1913 /* the function is at passive_level */
1914 void rtw_joinbss_reset(struct adapter *padapter)
1915 {
1916         u8      threshold;
1917         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
1918         struct ht_priv          *phtpriv = &pmlmepriv->htpriv;
1919
1920         /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1921         pmlmepriv->num_FortyMHzIntolerant = 0;
1922
1923         pmlmepriv->num_sta_no_ht = 0;
1924
1925         phtpriv->ampdu_enable = false;/* reset to disabled */
1926
1927         /*  TH = 1 => means that invalidate usb rx aggregation */
1928         /*  TH = 0 => means that validate usb rx aggregation, use init value. */
1929         if (phtpriv->ht_option) {
1930                 if (padapter->registrypriv.wifi_spec == 1)
1931                         threshold = 1;
1932                 else
1933                         threshold = 0;
1934                 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1935         } else {
1936                 threshold = 1;
1937                 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1938         }
1939 }
1940
1941 /* the function is >= passive_level */
1942 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1943 {
1944         u32 ielen, out_len;
1945         enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1946         unsigned char *p;
1947         struct rtw_ieee80211_ht_cap ht_capie;
1948         unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1949         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
1950         struct qos_priv         *pqospriv = &pmlmepriv->qospriv;
1951         struct ht_priv          *phtpriv = &pmlmepriv->htpriv;
1952         u32 rx_packet_offset, max_recvbuf_sz;
1953
1954
1955         phtpriv->ht_option = false;
1956
1957         p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1958
1959         if (p && ielen > 0) {
1960                 if (pqospriv->qos_option == 0) {
1961                         out_len = *pout_len;
1962                         rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1963                                    _WMM_IE_Length_, WMM_IE, pout_len);
1964
1965                         pqospriv->qos_option = 1;
1966                 }
1967
1968                 out_len = *pout_len;
1969
1970                 memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
1971
1972                 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1973                                     IEEE80211_HT_CAP_SGI_20 |
1974                                     IEEE80211_HT_CAP_SGI_40 |
1975                                     IEEE80211_HT_CAP_TX_STBC |
1976                                     IEEE80211_HT_CAP_DSSSCCK40;
1977
1978                 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1979                 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1980
1981                 /*
1982                 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1983                 AMPDU_para [4:2]:Min MPDU Start Spacing
1984                 */
1985
1986                 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1987                 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
1988
1989                 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1990                         ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
1991                 else
1992                         ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
1993
1994
1995                 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1996                            sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
1997
1998                 phtpriv->ht_option = true;
1999
2000                 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
2001                 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2002                         out_len = *pout_len;
2003                         rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2 , pout_len);
2004                 }
2005         }
2006         return phtpriv->ht_option;
2007 }
2008
2009 /* the function is > passive_level (in critical_section) */
2010 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
2011 {
2012         u8 *p, max_ampdu_sz;
2013         int len;
2014         struct rtw_ieee80211_ht_cap *pht_capie;
2015         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
2016         struct ht_priv          *phtpriv = &pmlmepriv->htpriv;
2017         struct registry_priv *pregistrypriv = &padapter->registrypriv;
2018         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
2019         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2020
2021         if (!phtpriv->ht_option)
2022                 return;
2023
2024         if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2025                 return;
2026
2027         DBG_88E("+rtw_update_ht_cap()\n");
2028
2029         /* maybe needs check if ap supports rx ampdu. */
2030         if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2031                 if (pregistrypriv->wifi_spec == 1)
2032                         phtpriv->ampdu_enable = false;
2033                 else
2034                         phtpriv->ampdu_enable = true;
2035         } else if (pregistrypriv->ampdu_enable == 2) {
2036                 phtpriv->ampdu_enable = true;
2037         }
2038
2039
2040         /* check Max Rx A-MPDU Size */
2041         len = 0;
2042         p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fixed_ie), _HT_CAPABILITY_IE_, &len, ie_len-sizeof(struct ndis_802_11_fixed_ie));
2043         if (p && len > 0) {
2044                 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2045                 max_ampdu_sz = pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
2046                 max_ampdu_sz = 1 << (max_ampdu_sz+3); /*  max_ampdu_sz (kbytes); */
2047                 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2048         }
2049         len = 0;
2050         p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fixed_ie), _HT_ADD_INFO_IE_, &len, ie_len-sizeof(struct ndis_802_11_fixed_ie));
2051
2052         /* update cur_bwmode & cur_ch_offset */
2053         if ((pregistrypriv->cbw40_enable) &&
2054             (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
2055             (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2056                 int i;
2057                 u8      rf_type;
2058
2059                 padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2060
2061                 /* update the MCS rates */
2062                 for (i = 0; i < 16; i++) {
2063                         if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2064                                 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
2065                         else
2066                                 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
2067                 }
2068                 /* switch to the 40M Hz mode according to the AP */
2069                 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2070                 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2071                 case HT_EXTCHNL_OFFSET_UPPER:
2072                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2073                         break;
2074                 case HT_EXTCHNL_OFFSET_LOWER:
2075                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2076                         break;
2077                 default:
2078                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2079                         break;
2080                 }
2081         }
2082
2083         /*  Config SM Power Save setting */
2084         pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
2085         if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2086                 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2087
2088         /*  Config current HT Protection mode. */
2089         pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2090 }
2091
2092 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2093 {
2094         u8 issued;
2095         int priority;
2096         struct sta_info *psta = NULL;
2097         struct ht_priv  *phtpriv;
2098         struct pkt_attrib *pattrib = &pxmitframe->attrib;
2099         s32 bmcst = IS_MCAST(pattrib->ra);
2100
2101         if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2102                 return;
2103
2104         priority = pattrib->priority;
2105
2106         if (pattrib->psta)
2107                 psta = pattrib->psta;
2108         else
2109                 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2110
2111         if (psta == NULL)
2112                 return;
2113
2114         phtpriv = &psta->htpriv;
2115
2116         if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2117                 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2118                 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2119
2120                 if (0 == issued) {
2121                         DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2122                         psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2123                         rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2124                 }
2125         }
2126 }
2127
2128 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2129 {
2130         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
2131
2132         spin_lock_bh(&pmlmepriv->lock);
2133         _rtw_roaming(padapter, tgt_network);
2134         spin_unlock_bh(&pmlmepriv->lock);
2135 }
2136 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2137 {
2138         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
2139         int do_join_r;
2140
2141         struct wlan_network *pnetwork;
2142
2143         if (tgt_network != NULL)
2144                 pnetwork = tgt_network;
2145         else
2146                 pnetwork = &pmlmepriv->cur_network;
2147
2148         if (0 < pmlmepriv->to_roaming) {
2149                 DBG_88E("roaming from %s(%pM length:%d\n",
2150                         pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2151                         pnetwork->network.Ssid.SsidLength);
2152                 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2153
2154                 pmlmepriv->assoc_by_bssid = false;
2155
2156                 while (1) {
2157                         do_join_r = rtw_do_join(padapter);
2158                         if (_SUCCESS == do_join_r) {
2159                                 break;
2160                         } else {
2161                                 DBG_88E("roaming do_join return %d\n", do_join_r);
2162                                 pmlmepriv->to_roaming--;
2163
2164                                 if (0 < pmlmepriv->to_roaming) {
2165                                         continue;
2166                                 } else {
2167                                         DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2168                                         rtw_indicate_disconnect(padapter);
2169                                         break;
2170                                 }
2171                         }
2172                 }
2173         }
2174 }