drivers/staging/rtl8723bs/core/rtw_mlme.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   5  *
   6  ******************************************************************************/
   7 #define _RTW_MLME_C_
   8
   9 #include <linux/etherdevice.h>
  10 #include <drv_types.h>
  11 #include <rtw_debug.h>
  12 #include <hal_btcoex.h>
  13 #include <linux/jiffies.h>
  14
  15 extern u8 rtw_do_join(struct adapter *padapter);
  16
  17 int     rtw_init_mlme_priv(struct adapter *padapter)
  18 {
  19         int     i;
  20         u8 *pbuf;
  21         struct wlan_network     *pnetwork;
  22         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
  23         int     res = _SUCCESS;
  24
  25         pmlmepriv->nic_hdl = (u8 *)padapter;
  26
  27         pmlmepriv->pscanned = NULL;
  28         pmlmepriv->fw_state = WIFI_STATION_STATE; /*  Must sync with rtw_wdev_alloc() */
  29         /*  wdev->iftype = NL80211_IFTYPE_STATION */
  30         pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
  31         pmlmepriv->scan_mode = SCAN_ACTIVE;/*  1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
  32
  33         spin_lock_init(&pmlmepriv->lock);
  34         _rtw_init_queue(&pmlmepriv->free_bss_pool);
  35         _rtw_init_queue(&pmlmepriv->scanned_queue);
  36
  37         set_scanned_network_val(pmlmepriv, 0);
  38
  39         memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
  40
  41         pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
  42
  43         if (!pbuf) {
  44                 res = _FAIL;
  45                 goto exit;
  46         }
  47         pmlmepriv->free_bss_buf = pbuf;
  48
  49         pnetwork = (struct wlan_network *)pbuf;
  50
  51         for (i = 0; i < MAX_BSS_CNT; i++) {
  52                 INIT_LIST_HEAD(&pnetwork->list);
  53
  54                 list_add_tail(&pnetwork->list, &pmlmepriv->free_bss_pool.queue);
  55
  56                 pnetwork++;
  57         }
  58
  59         /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
  60
  61         rtw_clear_scan_deny(padapter);
  62
  63         #define RTW_ROAM_SCAN_RESULT_EXP_MS 5000
  64         #define RTW_ROAM_RSSI_DIFF_TH 10
  65         #define RTW_ROAM_SCAN_INTERVAL_MS 10000
  66
  67         pmlmepriv->roam_flags = 0
  68                 | RTW_ROAM_ON_EXPIRED
  69                 | RTW_ROAM_ON_RESUME
  70                 #ifdef CONFIG_LAYER2_ROAMING_ACTIVE /* FIXME */
  71                 | RTW_ROAM_ACTIVE
  72                 #endif
  73                 ;
  74
  75         pmlmepriv->roam_scanr_exp_ms = RTW_ROAM_SCAN_RESULT_EXP_MS;
  76         pmlmepriv->roam_rssi_diff_th = RTW_ROAM_RSSI_DIFF_TH;
  77         pmlmepriv->roam_scan_int_ms = RTW_ROAM_SCAN_INTERVAL_MS;
  78
  79         rtw_init_mlme_timer(padapter);
  80
  81 exit:
  82
  83         return res;
  84 }
  85
  86 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
  87 {
  88         if (*ppie) {
  89                 kfree(*ppie);
  90                 *plen = 0;
  91                 *ppie = NULL;
  92         }
  93 }
  94
  95 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
  96 {
  97         rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
  98         rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
  99         rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
 100         rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
 101         rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
 102         rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
 103
 104         rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
 105         rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
 106         rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
 107         rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
 108         rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
 109 }
 110
 111 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 112 {
 113         if (pmlmepriv) {
 114                 rtw_free_mlme_priv_ie_data(pmlmepriv);
 115                 if (pmlmepriv->free_bss_buf)
 116                         vfree(pmlmepriv->free_bss_buf);
 117         }
 118 }
 119
 120 /*
 121 struct  wlan_network *_rtw_dequeue_network(struct __queue *queue)
 122 {
 123         _irqL irqL;
 124
 125         struct wlan_network *pnetwork;
 126
 127         spin_lock_bh(&queue->lock);
 128
 129         if (list_empty(&queue->queue))
 130
 131                 pnetwork = NULL;
 132
 133         else
 134         {
 135                 pnetwork = LIST_CONTAINOR(get_next(&queue->queue), struct wlan_network, list);
 136
 137                 list_del_init(&(pnetwork->list));
 138         }
 139
 140         spin_unlock_bh(&queue->lock);
 141
 142         return pnetwork;
 143 }
 144 */
 145
 146 struct  wlan_network *rtw_alloc_network(struct  mlme_priv *pmlmepriv)
 147 {
 148         struct  wlan_network    *pnetwork;
 149         struct __queue *free_queue = &pmlmepriv->free_bss_pool;
 150         struct list_head *plist = NULL;
 151
 152         spin_lock_bh(&free_queue->lock);
 153
 154         if (list_empty(&free_queue->queue)) {
 155                 pnetwork = NULL;
 156                 goto exit;
 157         }
 158         plist = get_next(&(free_queue->queue));
 159
 160         pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
 161
 162         list_del_init(&pnetwork->list);
 163
 164         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
 165                  ("rtw_alloc_network: ptr =%p\n", plist));
 166         pnetwork->network_type = 0;
 167         pnetwork->fixed = false;
 168         pnetwork->last_scanned = jiffies;
 169         pnetwork->aid = 0;
 170         pnetwork->join_res = 0;
 171
 172         pmlmepriv->num_of_scanned++;
 173
 174 exit:
 175         spin_unlock_bh(&free_queue->lock);
 176
 177         return pnetwork;
 178 }
 179
 180 void _rtw_free_network(struct   mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
 181 {
 182         unsigned int delta_time;
 183         u32 lifetime = SCANQUEUE_LIFETIME;
 184 /*      _irqL irqL; */
 185         struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
 186
 187         if (!pnetwork)
 188                 return;
 189
 190         if (pnetwork->fixed)
 191                 return;
 192
 193         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
 194                 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true))
 195                 lifetime = 1;
 196
 197         if (!isfreeall) {
 198                 delta_time = jiffies_to_msecs(jiffies - pnetwork->last_scanned);
 199                 if (delta_time < lifetime)/*  unit:msec */
 200                         return;
 201         }
 202
 203         spin_lock_bh(&free_queue->lock);
 204
 205         list_del_init(&(pnetwork->list));
 206
 207         list_add_tail(&(pnetwork->list), &(free_queue->queue));
 208
 209         pmlmepriv->num_of_scanned--;
 210
 211         /* DBG_871X("_rtw_free_network:SSID =%s\n", pnetwork->network.Ssid.Ssid); */
 212
 213         spin_unlock_bh(&free_queue->lock);
 214 }
 215
 216 void _rtw_free_network_nolock(struct    mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
 217 {
 218
 219         struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
 220
 221         if (!pnetwork)
 222                 return;
 223
 224         if (pnetwork->fixed)
 225                 return;
 226
 227         /* spin_lock_irqsave(&free_queue->lock, irqL); */
 228
 229         list_del_init(&(pnetwork->list));
 230
 231         list_add_tail(&(pnetwork->list), get_list_head(free_queue));
 232
 233         pmlmepriv->num_of_scanned--;
 234
 235         /* spin_unlock_irqrestore(&free_queue->lock, irqL); */
 236 }
 237
 238 /*
 239         return the wlan_network with the matching addr
 240
 241         Shall be called under atomic context... to avoid possible racing condition...
 242 */
 243 struct wlan_network *_rtw_find_network(struct __queue *scanned_queue, u8 *addr)
 244 {
 245         struct list_head        *phead, *plist;
 246         struct  wlan_network *pnetwork = NULL;
 247         u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
 248
 249         if (!memcmp(zero_addr, addr, ETH_ALEN)) {
 250                 pnetwork = NULL;
 251                 goto exit;
 252         }
 253
 254         /* spin_lock_bh(&scanned_queue->lock); */
 255
 256         phead = get_list_head(scanned_queue);
 257         plist = get_next(phead);
 258
 259         while (plist != phead) {
 260                 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
 261
 262                 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
 263                         break;
 264
 265                 plist = get_next(plist);
 266         }
 267
 268         if (plist == phead)
 269                 pnetwork = NULL;
 270
 271         /* spin_unlock_bh(&scanned_queue->lock); */
 272
 273 exit:
 274         return pnetwork;
 275 }
 276
 277 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
 278 {
 279         struct list_head *phead, *plist;
 280         struct wlan_network *pnetwork;
 281         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 282         struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
 283
 284         spin_lock_bh(&scanned_queue->lock);
 285
 286         phead = get_list_head(scanned_queue);
 287         plist = get_next(phead);
 288
 289         while (phead != plist) {
 290
 291                 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
 292
 293                 plist = get_next(plist);
 294
 295                 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
 296
 297         }
 298
 299         spin_unlock_bh(&scanned_queue->lock);
 300 }
 301
 302 sint rtw_if_up(struct adapter *padapter)
 303 {
 304         sint res;
 305
 306         if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
 307                 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
 308                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
 309                 res = false;
 310         } else
 311                 res =  true;
 312         return res;
 313 }
 314
 315 void rtw_generate_random_ibss(u8 *pibss)
 316 {
 317         unsigned long curtime = jiffies;
 318
 319         pibss[0] = 0x02;  /* in ad-hoc mode bit1 must set to 1 */
 320         pibss[1] = 0x11;
 321         pibss[2] = 0x87;
 322         pibss[3] = (u8)(curtime & 0xff) ;/* p[0]; */
 323         pibss[4] = (u8)((curtime>>8) & 0xff) ;/* p[1]; */
 324         pibss[5] = (u8)((curtime>>16) & 0xff) ;/* p[2]; */
 325 }
 326
 327 u8 *rtw_get_capability_from_ie(u8 *ie)
 328 {
 329         return ie + 8 + 2;
 330 }
 331
 332 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
 333 {
 334         __le16  val;
 335
 336         memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
 337
 338         return le16_to_cpu(val);
 339 }
 340
 341 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
 342 {
 343         return ie + 8;
 344 }
 345
 346 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 347 {
 348         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_mlme_priv\n"));
 349         _rtw_free_mlme_priv(pmlmepriv);
 350 }
 351
 352 /*
 353 static struct   wlan_network *rtw_dequeue_network(struct __queue *queue)
 354 {
 355         struct wlan_network *pnetwork;
 356
 357         pnetwork = _rtw_dequeue_network(queue);
 358         return pnetwork;
 359 }
 360 */
 361
 362 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork);
 363 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork)
 364 {
 365         /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_network ==> ssid = %s\n\n" , pnetwork->network.Ssid.Ssid)); */
 366         _rtw_free_network_nolock(&(padapter->mlmepriv), pnetwork);
 367         rtw_cfg80211_unlink_bss(padapter, pnetwork);
 368 }
 369
 370 /*
 371         return the wlan_network with the matching addr
 372
 373         Shall be called under atomic context... to avoid possible racing condition...
 374 */
 375 struct  wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
 376 {
 377         struct  wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);
 378
 379         return pnetwork;
 380 }
 381
 382 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
 383 {
 384         int ret = true;
 385         struct security_priv *psecuritypriv = &adapter->securitypriv;
 386
 387         if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
 388                     (pnetwork->network.Privacy == 0))
 389                 ret = false;
 390         else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
 391                  (pnetwork->network.Privacy == 1))
 392                 ret = false;
 393         else
 394                 ret = true;
 395
 396         return ret;
 397
 398 }
 399
 400 inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
 401 {
 402         /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("(%s,%d)(%s,%d)\n", */
 403         /*              a->Ssid.Ssid, a->Ssid.SsidLength, b->Ssid.Ssid, b->Ssid.SsidLength)); */
 404         return (a->Ssid.SsidLength == b->Ssid.SsidLength)
 405                 &&  !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
 406 }
 407
 408 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst, u8 feature)
 409 {
 410         u16 s_cap, d_cap;
 411         __le16 tmps, tmpd;
 412
 413         if (rtw_bug_check(dst, src, &s_cap, &d_cap) == false)
 414                         return false;
 415
 416         memcpy((u8 *)&tmps, rtw_get_capability_from_ie(src->IEs), 2);
 417         memcpy((u8 *)&tmpd, rtw_get_capability_from_ie(dst->IEs), 2);
 418
 419         s_cap = le16_to_cpu(tmps);
 420         d_cap = le16_to_cpu(tmpd);
 421
 422         return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
 423                 /*      (src->Configuration.DSConfig == dst->Configuration.DSConfig) && */
 424                         ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN))) &&
 425                         ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength))) &&
 426                         ((s_cap & WLAN_CAPABILITY_IBSS) ==
 427                         (d_cap & WLAN_CAPABILITY_IBSS)) &&
 428                         ((s_cap & WLAN_CAPABILITY_BSS) ==
 429                         (d_cap & WLAN_CAPABILITY_BSS));
 430
 431 }
 432
 433 struct wlan_network *_rtw_find_same_network(struct __queue *scanned_queue, struct wlan_network *network)
 434 {
 435         struct list_head *phead, *plist;
 436         struct wlan_network *found = NULL;
 437
 438         phead = get_list_head(scanned_queue);
 439         plist = get_next(phead);
 440
 441         while (plist != phead) {
 442                 found = LIST_CONTAINOR(plist, struct wlan_network, list);
 443
 444                 if (is_same_network(&network->network, &found->network, 0))
 445                         break;
 446
 447                 plist = get_next(plist);
 448         }
 449
 450         if (plist == phead)
 451                 found = NULL;
 452
 453         return found;
 454 }
 455
 456 struct  wlan_network    *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
 457 {
 458         struct list_head        *plist, *phead;
 459
 460         struct  wlan_network    *pwlan = NULL;
 461         struct  wlan_network    *oldest = NULL;
 462
 463         phead = get_list_head(scanned_queue);
 464
 465         plist = get_next(phead);
 466
 467         while (1) {
 468
 469                 if (phead == plist)
 470                         break;
 471
 472                 pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
 473
 474                 if (!pwlan->fixed) {
 475                         if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
 476                                 oldest = pwlan;
 477                 }
 478
 479                 plist = get_next(plist);
 480         }
 481         return oldest;
 482
 483 }
 484
 485 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
 486         struct adapter *padapter, bool update_ie)
 487 {
 488         long rssi_ori = dst->Rssi;
 489
 490         u8 sq_smp = src->PhyInfo.SignalQuality;
 491
 492         u8 ss_final;
 493         u8 sq_final;
 494         long rssi_final;
 495
 496         #if defined(DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) && 1
 497         if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
 498                 DBG_871X(FUNC_ADPT_FMT" %s("MAC_FMT", ch%u) ss_ori:%3u, sq_ori:%3u, rssi_ori:%3ld, ss_smp:%3u, sq_smp:%3u, rssi_smp:%3ld\n"
 499                         , FUNC_ADPT_ARG(padapter)
 500                         , src->Ssid.Ssid, MAC_ARG(src->MacAddress), src->Configuration.DSConfig
 501                         , ss_ori, sq_ori, rssi_ori
 502                         , ss_smp, sq_smp, rssi_smp
 503                 );
 504         }
 505         #endif
 506
 507         /* The rule below is 1/5 for sample value, 4/5 for history value */
 508         if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src, 0)) {
 509                 /* Take the recvpriv's value for the connected AP*/
 510                 ss_final = padapter->recvpriv.signal_strength;
 511                 sq_final = padapter->recvpriv.signal_qual;
 512                 /* the rssi value here is undecorated, and will be used for antenna diversity */
 513                 if (sq_smp != 101) /* from the right channel */
 514                         rssi_final = (src->Rssi+dst->Rssi*4)/5;
 515                 else
 516                         rssi_final = rssi_ori;
 517         } else {
 518                 if (sq_smp != 101) { /* from the right channel */
 519                         ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
 520                         sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
 521                         rssi_final = (src->Rssi+dst->Rssi*4)/5;
 522                 } else {
 523                         /* bss info not receiving from the right channel, use the original RX signal infos */
 524                         ss_final = dst->PhyInfo.SignalStrength;
 525                         sq_final = dst->PhyInfo.SignalQuality;
 526                         rssi_final = dst->Rssi;
 527                 }
 528
 529         }
 530
 531         if (update_ie) {
 532                 dst->Reserved[0] = src->Reserved[0];
 533                 dst->Reserved[1] = src->Reserved[1];
 534                 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
 535         }
 536
 537         dst->PhyInfo.SignalStrength = ss_final;
 538         dst->PhyInfo.SignalQuality = sq_final;
 539         dst->Rssi = rssi_final;
 540
 541         #if defined(DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) && 1
 542         if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
 543                 DBG_871X(FUNC_ADPT_FMT" %s("MAC_FMT"), SignalStrength:%u, SignalQuality:%u, RawRSSI:%ld\n"
 544                         , FUNC_ADPT_ARG(padapter)
 545                         , dst->Ssid.Ssid, MAC_ARG(dst->MacAddress), dst->PhyInfo.SignalStrength, dst->PhyInfo.SignalQuality, dst->Rssi);
 546         }
 547         #endif
 548 }
 549
 550 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
 551 {
 552         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 553
 554         rtw_bug_check(&(pmlmepriv->cur_network.network),
 555                 &(pmlmepriv->cur_network.network),
 556                 &(pmlmepriv->cur_network.network),
 557                 &(pmlmepriv->cur_network.network));
 558
 559         if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) && (is_same_network(&(pmlmepriv->cur_network.network), pnetwork, 0))) {
 560                 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,"Same Network\n"); */
 561
 562                 /* if (pmlmepriv->cur_network.network.IELength<= pnetwork->IELength) */
 563                 {
 564                         update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
 565                         rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fix_ie),
 566                                                                         pmlmepriv->cur_network.network.IELength);
 567                 }
 568         }
 569 }
 570
 571 /*
 572 Caller must hold pmlmepriv->lock first.
 573 */
 574 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
 575 {
 576         struct list_head        *plist, *phead;
 577         u32 bssid_ex_sz;
 578         struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 579         struct __queue  *queue  = &(pmlmepriv->scanned_queue);
 580         struct wlan_network     *pnetwork = NULL;
 581         struct wlan_network     *oldest = NULL;
 582         int target_find = 0;
 583         u8 feature = 0;
 584
 585         spin_lock_bh(&queue->lock);
 586         phead = get_list_head(queue);
 587         plist = get_next(phead);
 588
 589         while (1) {
 590                 if (phead == plist)
 591                         break;
 592
 593                 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
 594
 595                 rtw_bug_check(pnetwork, pnetwork, pnetwork, pnetwork);
 596
 597                 if (is_same_network(&(pnetwork->network), target, feature)) {
 598                         target_find = 1;
 599                         break;
 600                 }
 601
 602                 if (rtw_roam_flags(adapter)) {
 603                         /* TODO: don't  select netowrk in the same ess as oldest if it's new enough*/
 604                 }
 605
 606                 if (oldest == NULL || time_after(oldest->last_scanned, pnetwork->last_scanned))
 607                         oldest = pnetwork;
 608
 609                 plist = get_next(plist);
 610
 611         }
 612
 613         /* If we didn't find a match, then get a new network slot to initialize
 614          * with this beacon's information */
 615         /* if (phead == plist) { */
 616         if (!target_find) {
 617                 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
 618                         /* If there are no more slots, expire the oldest */
 619                         /* list_del_init(&oldest->list); */
 620                         pnetwork = oldest;
 621                         if (!pnetwork) {
 622                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
 623                                 goto exit;
 624                         }
 625                         memcpy(&(pnetwork->network), target,  get_wlan_bssid_ex_sz(target));
 626                         /*  variable initialize */
 627                         pnetwork->fixed = false;
 628                         pnetwork->last_scanned = jiffies;
 629
 630                         pnetwork->network_type = 0;
 631                         pnetwork->aid = 0;
 632                         pnetwork->join_res = 0;
 633
 634                         /* bss info not receiving from the right channel */
 635                         if (pnetwork->network.PhyInfo.SignalQuality == 101)
 636                                 pnetwork->network.PhyInfo.SignalQuality = 0;
 637                 } else {
 638                         /* Otherwise just pull from the free list */
 639
 640                         pnetwork = rtw_alloc_network(pmlmepriv); /*  will update scan_time */
 641
 642                         if (!pnetwork) {
 643                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
 644                                 goto exit;
 645                         }
 646
 647                         bssid_ex_sz = get_wlan_bssid_ex_sz(target);
 648                         target->Length = bssid_ex_sz;
 649                         memcpy(&(pnetwork->network), target, bssid_ex_sz);
 650
 651                         pnetwork->last_scanned = jiffies;
 652
 653                         /* bss info not receiving from the right channel */
 654                         if (pnetwork->network.PhyInfo.SignalQuality == 101)
 655                                 pnetwork->network.PhyInfo.SignalQuality = 0;
 656
 657                         list_add_tail(&(pnetwork->list), &(queue->queue));
 658
 659                 }
 660         } else {
 661                 /* we have an entry and we are going to update it. But this entry may
 662                  * be already expired. In this case we do the same as we found a new
 663                  * net and call the new_net handler
 664                  */
 665                 bool update_ie = true;
 666
 667                 pnetwork->last_scanned = jiffies;
 668
 669                 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
 670                 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
 671                         update_ie = false;
 672
 673                 /*  probe resp(3) > beacon(1) > probe req(2) */
 674                 if ((target->Reserved[0] != 2) &&
 675                         (target->Reserved[0] >= pnetwork->network.Reserved[0])
 676                         ) {
 677                         update_ie = true;
 678                 } else {
 679                         update_ie = false;
 680                 }
 681
 682                 update_network(&(pnetwork->network), target, adapter, update_ie);
 683         }
 684
 685 exit:
 686         spin_unlock_bh(&queue->lock);
 687 }
 688
 689 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork);
 690 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
 691 {
 692         /* struct __queue       *queue  = &(pmlmepriv->scanned_queue); */
 693
 694         /* spin_lock_bh(&queue->lock); */
 695
 696         update_current_network(adapter, pnetwork);
 697
 698         rtw_update_scanned_network(adapter, pnetwork);
 699
 700         /* spin_unlock_bh(&queue->lock); */
 701 }
 702
 703 /* select the desired network based on the capability of the (i)bss. */
 704 /*  check items: (1) security */
 705 /*                         (2) network_type */
 706 /*                         (3) WMM */
 707 /*                         (4) HT */
 708 /*                      (5) others */
 709 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork);
 710 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
 711 {
 712         struct security_priv *psecuritypriv = &adapter->securitypriv;
 713         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
 714         u32 desired_encmode;
 715         u32 privacy;
 716
 717         /* u8 wps_ie[512]; */
 718         uint wps_ielen;
 719
 720         int bselected = true;
 721
 722         desired_encmode = psecuritypriv->ndisencryptstatus;
 723         privacy = pnetwork->network.Privacy;
 724
 725         if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
 726                 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen))
 727                         return true;
 728                 else
 729                         return false;
 730
 731         }
 732         if (adapter->registrypriv.wifi_spec == 1) { /* for  correct flow of 8021X  to do.... */
 733                 u8 *p = NULL;
 734                 uint ie_len = 0;
 735
 736                 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
 737             bselected = false;
 738
 739                 if (psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPA2PSK) {
 740                         p = rtw_get_ie(pnetwork->network.IEs + _BEACON_IE_OFFSET_, _RSN_IE_2_, &ie_len, (pnetwork->network.IELength - _BEACON_IE_OFFSET_));
 741                         if (p && ie_len > 0)
 742                                 bselected = true;
 743                         else
 744                                 bselected = false;
 745                 }
 746         }
 747
 748         if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
 749                 DBG_871X("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
 750                 bselected = false;
 751         }
 752
 753         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
 754                 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
 755                         bselected = false;
 756         }
 757
 758         return bselected;
 759 }
 760
 761 /* TODO: Perry : For Power Management */
 762 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
 763 {
 764         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_event\n"));
 765 }
 766
 767 void rtw_survey_event_callback(struct adapter   *adapter, u8 *pbuf)
 768 {
 769         u32 len;
 770         struct wlan_bssid_ex *pnetwork;
 771         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 772
 773         pnetwork = (struct wlan_bssid_ex *)pbuf;
 774
 775         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid =%s\n",  pnetwork->Ssid.Ssid));
 776
 777         len = get_wlan_bssid_ex_sz(pnetwork);
 778         if (len > (sizeof(struct wlan_bssid_ex))) {
 779                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n ****rtw_survey_event_callback: return a wrong bss ***\n"));
 780                 return;
 781         }
 782
 783         spin_lock_bh(&pmlmepriv->lock);
 784
 785         /*  update IBSS_network 's timestamp */
 786         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
 787                 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,"rtw_survey_event_callback : WIFI_ADHOC_MASTER_STATE\n\n"); */
 788                 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
 789                         struct wlan_network *ibss_wlan = NULL;
 790
 791                         memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
 792                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
 793                         ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue,  pnetwork->MacAddress);
 794                         if (ibss_wlan) {
 795                                 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
 796                                 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
 797                                 goto exit;
 798                         }
 799                         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
 800                 }
 801         }
 802
 803         /*  lock pmlmepriv->lock when you accessing network_q */
 804         if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
 805                 if (pnetwork->Ssid.Ssid[0] == 0)
 806                         pnetwork->Ssid.SsidLength = 0;
 807                 rtw_add_network(adapter, pnetwork);
 808         }
 809
 810 exit:
 811
 812         spin_unlock_bh(&pmlmepriv->lock);
 813 }
 814
 815 void rtw_surveydone_event_callback(struct adapter       *adapter, u8 *pbuf)
 816 {
 817         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 818
 819         spin_lock_bh(&pmlmepriv->lock);
 820         if (pmlmepriv->wps_probe_req_ie) {
 821                 pmlmepriv->wps_probe_req_ie_len = 0;
 822                 kfree(pmlmepriv->wps_probe_req_ie);
 823                 pmlmepriv->wps_probe_req_ie = NULL;
 824         }
 825
 826         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
 827
 828         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
 829                 del_timer_sync(&pmlmepriv->scan_to_timer);
 830                 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 831         } else {
 832
 833                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status =%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
 834         }
 835
 836         rtw_set_signal_stat_timer(&adapter->recvpriv);
 837
 838         if (pmlmepriv->to_join) {
 839                 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
 840                         if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
 841                                 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 842
 843                                 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
 844                                         _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
 845                                 } else {
 846                                         struct wlan_bssid_ex    *pdev_network = &(adapter->registrypriv.dev_network);
 847                                         u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
 848
 849                                         /* pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;because don't set assoc_timer */
 850                                         _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 851
 852                                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
 853
 854                                         memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
 855
 856                                         rtw_update_registrypriv_dev_network(adapter);
 857                                         rtw_generate_random_ibss(pibss);
 858
 859                                         pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
 860
 861                                         if (rtw_createbss_cmd(adapter) != _SUCCESS)
 862                                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error =>rtw_createbss_cmd status FAIL\n"));
 863
 864                                         pmlmepriv->to_join = false;
 865                                 }
 866                         }
 867                 } else {
 868                         int s_ret;
 869                         set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 870                         pmlmepriv->to_join = false;
 871                         s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
 872                         if (_SUCCESS == s_ret) {
 873                              _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
 874                         } else if (s_ret == 2) {/* there is no need to wait for join */
 875                                 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 876                                 rtw_indicate_connect(adapter);
 877                         } else {
 878                                 DBG_871X("try_to_join, but select scanning queue fail, to_roam:%d\n", rtw_to_roam(adapter));
 879
 880                                 if (rtw_to_roam(adapter) != 0) {
 881                                         if (rtw_dec_to_roam(adapter) == 0
 882                                                 || _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)
 883                                         ) {
 884                                                 rtw_set_to_roam(adapter, 0);
 885                                                 rtw_free_assoc_resources(adapter, 1);
 886                                                 rtw_indicate_disconnect(adapter);
 887                                         } else {
 888                                                 pmlmepriv->to_join = true;
 889                                         }
 890                                 } else
 891                                         rtw_indicate_disconnect(adapter);
 892
 893                                 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 894                         }
 895                 }
 896         } else {
 897                 if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
 898                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
 899                                 && check_fwstate(pmlmepriv, _FW_LINKED)) {
 900                                 if (rtw_select_roaming_candidate(pmlmepriv) == _SUCCESS) {
 901                                         receive_disconnect(adapter, pmlmepriv->cur_network.network.MacAddress
 902                                                 , WLAN_REASON_ACTIVE_ROAM);
 903                                 }
 904                         }
 905                 }
 906         }
 907
 908         /* DBG_871X("scan complete in %dms\n", jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time)); */
 909
 910         spin_unlock_bh(&pmlmepriv->lock);
 911
 912         rtw_os_xmit_schedule(adapter);
 913
 914         rtw_cfg80211_surveydone_event_callback(adapter);
 915
 916         rtw_indicate_scan_done(adapter, false);
 917 }
 918
 919 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
 920 {
 921 }
 922
 923 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
 924 {
 925 }
 926
 927 static void free_scanqueue(struct       mlme_priv *pmlmepriv)
 928 {
 929         struct __queue *free_queue = &pmlmepriv->free_bss_pool;
 930         struct __queue *scan_queue = &pmlmepriv->scanned_queue;
 931         struct list_head        *plist, *phead, *ptemp;
 932
 933         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
 934         spin_lock_bh(&scan_queue->lock);
 935         spin_lock_bh(&free_queue->lock);
 936
 937         phead = get_list_head(scan_queue);
 938         plist = get_next(phead);
 939
 940         while (plist != phead) {
 941                 ptemp = get_next(plist);
 942                 list_del_init(plist);
 943                 list_add_tail(plist, &free_queue->queue);
 944                 plist = ptemp;
 945                 pmlmepriv->num_of_scanned--;
 946         }
 947
 948         spin_unlock_bh(&free_queue->lock);
 949         spin_unlock_bh(&scan_queue->lock);
 950 }
 951
 952 static void rtw_reset_rx_info(struct debug_priv *pdbgpriv)
 953 {
 954         pdbgpriv->dbg_rx_ampdu_drop_count = 0;
 955         pdbgpriv->dbg_rx_ampdu_forced_indicate_count = 0;
 956         pdbgpriv->dbg_rx_ampdu_loss_count = 0;
 957         pdbgpriv->dbg_rx_dup_mgt_frame_drop_count = 0;
 958         pdbgpriv->dbg_rx_ampdu_window_shift_cnt = 0;
 959 }
 960
 961 static void find_network(struct adapter *adapter)
 962 {
 963         struct wlan_network *pwlan = NULL;
 964         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
 965         struct wlan_network *tgt_network = &pmlmepriv->cur_network;
 966
 967         pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
 968         if (pwlan)
 969                 pwlan->fixed = false;
 970         else
 971                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources : pwlan == NULL\n\n"));
 972
 973         if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
 974             (adapter->stapriv.asoc_sta_count == 1))
 975                 rtw_free_network_nolock(adapter, pwlan);
 976 }
 977
 978 /*
 979 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
 980 */
 981 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
 982 {
 983         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
 984         struct wlan_network *tgt_network = &pmlmepriv->cur_network;
 985         struct  sta_priv *pstapriv = &adapter->stapriv;
 986         struct dvobj_priv *psdpriv = adapter->dvobj;
 987         struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
 988
 989         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
 990         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("tgt_network->network.MacAddress ="MAC_FMT" ssid =%s\n",
 991                 MAC_ARG(tgt_network->network.MacAddress), tgt_network->network.Ssid.Ssid));
 992
 993         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
 994                 struct sta_info *psta;
 995
 996                 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
 997                 spin_lock_bh(&(pstapriv->sta_hash_lock));
 998                 rtw_free_stainfo(adapter,  psta);
 999
1000                 spin_unlock_bh(&(pstapriv->sta_hash_lock));
1001
1002         }
1003
1004         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE)) {
1005                 struct sta_info *psta;
1006
1007                 rtw_free_all_stainfo(adapter);
1008
1009                 psta = rtw_get_bcmc_stainfo(adapter);
1010                 rtw_free_stainfo(adapter, psta);
1011
1012                 rtw_init_bcmc_stainfo(adapter);
1013         }
1014
1015         find_network(adapter);
1016
1017         if (lock_scanned_queue)
1018                 adapter->securitypriv.key_mask = 0;
1019
1020         rtw_reset_rx_info(pdbgpriv);
1021 }
1022
1023 /*
1024 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
1025 */
1026 void rtw_indicate_connect(struct adapter *padapter)
1027 {
1028         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1029
1030         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
1031
1032         pmlmepriv->to_join = false;
1033
1034         if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
1035
1036                 set_fwstate(pmlmepriv, _FW_LINKED);
1037
1038                 rtw_os_indicate_connect(padapter);
1039         }
1040
1041         rtw_set_to_roam(padapter, 0);
1042         rtw_set_scan_deny(padapter, 3000);
1043
1044         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state = 0x%08x\n", get_fwstate(pmlmepriv)));
1045 }
1046
1047 /*
1048 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
1049 */
1050 void rtw_indicate_disconnect(struct adapter *padapter)
1051 {
1052         struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
1053
1054         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
1055
1056         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS);
1057
1058         /* DBG_871X("clear wps when %s\n", __func__); */
1059
1060         if (rtw_to_roam(padapter) > 0)
1061                 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1062
1063         if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)
1064                 || (rtw_to_roam(padapter) <= 0)
1065         ) {
1066                 rtw_os_indicate_disconnect(padapter);
1067
1068                 /* set ips_deny_time to avoid enter IPS before LPS leave */
1069                 rtw_set_ips_deny(padapter, 3000);
1070
1071                 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1072
1073                 rtw_clear_scan_deny(padapter);
1074         }
1075
1076         rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
1077 }
1078
1079 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
1080 {
1081         DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));
1082
1083         rtw_os_indicate_scan_done(padapter, aborted);
1084
1085         if (is_primary_adapter(padapter) &&
1086             (!adapter_to_pwrctl(padapter)->bInSuspend) &&
1087             (!check_fwstate(&padapter->mlmepriv,
1088                             WIFI_ASOC_STATE|WIFI_UNDER_LINKING))) {
1089                 rtw_set_ips_deny(padapter, 0);
1090                 _set_timer(&padapter->mlmepriv.dynamic_chk_timer, 1);
1091         }
1092 }
1093
1094 void rtw_scan_abort(struct adapter *adapter)
1095 {
1096         unsigned long start;
1097         struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1098         struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
1099
1100         start = jiffies;
1101         pmlmeext->scan_abort = true;
1102         while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)
1103                 && jiffies_to_msecs(start) <= 200) {
1104
1105                 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1106                         break;
1107
1108                 DBG_871X(FUNC_NDEV_FMT"fw_state = _FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
1109                 msleep(20);
1110         }
1111
1112         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
1113                 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
1114                         DBG_871X(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
1115                 rtw_indicate_scan_done(adapter, true);
1116         }
1117         pmlmeext->scan_abort = false;
1118 }
1119
1120 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
1121 {
1122         int i;
1123         struct sta_info *bmc_sta, *psta = NULL;
1124         struct recv_reorder_ctrl *preorder_ctrl;
1125         struct sta_priv *pstapriv = &padapter->stapriv;
1126         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1127
1128         psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
1129         if (!psta)
1130                 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
1131
1132         if (psta) { /* update ptarget_sta */
1133
1134                 DBG_871X("%s\n", __func__);
1135
1136                 psta->aid  = pnetwork->join_res;
1137
1138                 update_sta_info(padapter, psta);
1139
1140                 /* update station supportRate */
1141                 psta->bssratelen = rtw_get_rateset_len(pnetwork->network.SupportedRates);
1142                 memcpy(psta->bssrateset, pnetwork->network.SupportedRates, psta->bssratelen);
1143                 rtw_hal_update_sta_rate_mask(padapter, psta);
1144
1145                 psta->wireless_mode = pmlmeext->cur_wireless_mode;
1146                 psta->raid = networktype_to_raid_ex(padapter, psta);
1147
1148                 /* sta mode */
1149                 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
1150
1151                 /* security related */
1152                 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1153                         padapter->securitypriv.binstallGrpkey = false;
1154                         padapter->securitypriv.busetkipkey = false;
1155                         padapter->securitypriv.bgrpkey_handshake = false;
1156
1157                         psta->ieee8021x_blocked = true;
1158                         psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
1159
1160                         memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
1161
1162                         memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
1163                         memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
1164
1165                         memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
1166                         psta->dot11txpn.val = psta->dot11txpn.val + 1;
1167                         memset((u8 *)&psta->dot11wtxpn, 0, sizeof(union pn48));
1168                         memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
1169                 }
1170
1171                 /*      Commented by Albert 2012/07/21 */
1172                 /*      When doing the WPS, the wps_ie_len won't equal to 0 */
1173                 /*      And the Wi-Fi driver shouldn't allow the data packet to be transmitted. */
1174                 if (padapter->securitypriv.wps_ie_len != 0) {
1175                         psta->ieee8021x_blocked = true;
1176                         padapter->securitypriv.wps_ie_len = 0;
1177                 }
1178
1179                 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
1180                 /* if A-MPDU Rx is enabled, resetting  rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
1181                 /* todo: check if AP can send A-MPDU packets */
1182                 for (i = 0; i < 16 ; i++) {
1183                         /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1184                         preorder_ctrl = &psta->recvreorder_ctrl[i];
1185                         preorder_ctrl->enable = false;
1186                         preorder_ctrl->indicate_seq = 0xffff;
1187                         #ifdef DBG_RX_SEQ
1188                         DBG_871X("DBG_RX_SEQ %s:%d indicate_seq:%u\n", __func__, __LINE__,
1189                                 preorder_ctrl->indicate_seq);
1190                         #endif
1191                         preorder_ctrl->wend_b = 0xffff;
1192                         preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1193                 }
1194
1195                 bmc_sta = rtw_get_bcmc_stainfo(padapter);
1196                 if (bmc_sta) {
1197                         for (i = 0; i < 16 ; i++) {
1198                                 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1199                                 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1200                                 preorder_ctrl->enable = false;
1201                                 preorder_ctrl->indicate_seq = 0xffff;
1202                                 #ifdef DBG_RX_SEQ
1203                                 DBG_871X("DBG_RX_SEQ %s:%d indicate_seq:%u\n", __func__, __LINE__,
1204                                         preorder_ctrl->indicate_seq);
1205                                 #endif
1206                                 preorder_ctrl->wend_b = 0xffff;
1207                                 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1208                         }
1209                 }
1210         }
1211
1212         return psta;
1213
1214 }
1215
1216 /* pnetwork : returns from rtw_joinbss_event_callback */
1217 /* ptarget_wlan: found from scanned_queue */
1218 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network  *pnetwork)
1219 {
1220         struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1221         struct wlan_network  *cur_network = &(pmlmepriv->cur_network);
1222
1223         DBG_871X("%s\n", __func__);
1224
1225         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nfw_state:%x, BSSID:"MAC_FMT"\n"
1226                 , get_fwstate(pmlmepriv), MAC_ARG(pnetwork->network.MacAddress)));
1227
1228         /*  why not use ptarget_wlan?? */
1229         memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
1230         /*  some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
1231         cur_network->network.IELength = ptarget_wlan->network.IELength;
1232         memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
1233
1234         cur_network->aid = pnetwork->join_res;
1235
1236         rtw_set_signal_stat_timer(&padapter->recvpriv);
1237
1238         padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
1239         padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
1240         /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
1241         padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
1242         #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
1243                 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u"
1244                         "\n"
1245                         , FUNC_ADPT_ARG(padapter)
1246                         , padapter->recvpriv.signal_strength
1247                         , padapter->recvpriv.rssi
1248                         , padapter->recvpriv.signal_qual
1249         );
1250         #endif
1251
1252         rtw_set_signal_stat_timer(&padapter->recvpriv);
1253
1254         /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1255         switch (pnetwork->network.InfrastructureMode) {
1256         case Ndis802_11Infrastructure:
1257
1258                         if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
1259                                 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
1260                         else
1261                                 pmlmepriv->fw_state = WIFI_STATION_STATE;
1262
1263                         break;
1264         case Ndis802_11IBSS:
1265                         pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1266                         break;
1267         default:
1268                         pmlmepriv->fw_state = WIFI_NULL_STATE;
1269                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1270                         break;
1271         }
1272
1273         rtw_update_protection(padapter, (cur_network->network.IEs) + sizeof(struct ndis_802_11_fix_ie),
1274                                                                         (cur_network->network.IELength));
1275
1276         rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength, (u8) cur_network->network.Configuration.DSConfig);
1277 }
1278
1279 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1280 /* pnetwork : returns from rtw_joinbss_event_callback */
1281 /* ptarget_wlan: found from scanned_queue */
1282 /* if join_res > 0, for (fw_state ==WIFI_STATION_STATE), we check if  "ptarget_sta" & "ptarget_wlan" exist. */
1283 /* if join_res > 0, for (fw_state ==WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1284 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1285 /*  */
1286 /* define REJOIN */
1287 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1288 {
1289         static u8 retry;
1290         struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1291         struct  sta_priv *pstapriv = &adapter->stapriv;
1292         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1293         struct wlan_network     *pnetwork       = (struct wlan_network *)pbuf;
1294         struct wlan_network     *cur_network = &(pmlmepriv->cur_network);
1295         struct wlan_network     *pcur_wlan = NULL, *ptarget_wlan = NULL;
1296         unsigned int            the_same_macaddr = false;
1297
1298         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res =%d\n", pnetwork->join_res));
1299
1300         rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1301
1302         if (pmlmepriv->assoc_ssid.SsidLength == 0)
1303                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@   joinbss event call back  for Any SSid\n"));
1304         else
1305                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@   rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1306
1307         the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1308
1309         pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1310         if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1311                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1312                 return;
1313         }
1314
1315         spin_lock_bh(&pmlmepriv->lock);
1316
1317         pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 0;
1318         pmlmepriv->LinkDetectInfo.LowPowerTransitionCount = 0;
1319
1320         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n rtw_joinbss_event_callback !! spin_lock_irqsave\n"));
1321
1322         if (pnetwork->join_res > 0) {
1323                 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1324                 retry = 0;
1325                 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1326                         /* s1. find ptarget_wlan */
1327                         if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1328                                 if (the_same_macaddr) {
1329                                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1330                                 } else {
1331                                         pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1332                                         if (pcur_wlan)
1333                                                 pcur_wlan->fixed = false;
1334
1335                                         pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1336                                         if (pcur_sta)
1337                                                 rtw_free_stainfo(adapter,  pcur_sta);
1338
1339                                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1340                                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1341                                                 if (ptarget_wlan)
1342                                                         ptarget_wlan->fixed = true;
1343                                         }
1344                                 }
1345
1346                         } else {
1347                                 ptarget_wlan = _rtw_find_same_network(&pmlmepriv->scanned_queue, pnetwork);
1348                                 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1349                                         if (ptarget_wlan)
1350                                                 ptarget_wlan->fixed = true;
1351                                 }
1352                         }
1353
1354                         /* s2. update cur_network */
1355                         if (ptarget_wlan) {
1356                                 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1357                         } else {
1358                                 DBG_871X_LEVEL(_drv_always_, "Can't find ptarget_wlan when joinbss_event callback\n");
1359                                 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1360                                 goto ignore_joinbss_callback;
1361                         }
1362
1363                         /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1364                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1365                                 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1366                                 if (!ptarget_sta) {
1367                                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1368                                         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1369                                         goto ignore_joinbss_callback;
1370                                 }
1371                         }
1372
1373                         /* s4. indicate connect */
1374                         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1375                                 pmlmepriv->cur_network_scanned = ptarget_wlan;
1376                                 rtw_indicate_connect(adapter);
1377                         } else {
1378                                 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1379                                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1380                         }
1381
1382                         /* s5. Cancel assoc_timer */
1383                         del_timer_sync(&pmlmepriv->assoc_timer);
1384
1385                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancel assoc_timer\n"));
1386
1387                 } else {
1388                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1389                         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1390                         goto ignore_joinbss_callback;
1391                 }
1392
1393                 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1394
1395         } else if (pnetwork->join_res == -4) {
1396                 rtw_reset_securitypriv(adapter);
1397                 _set_timer(&pmlmepriv->assoc_timer, 1);
1398
1399                 /* rtw_free_assoc_resources(adapter, 1); */
1400
1401                 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1402                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state =%x\n", get_fwstate(pmlmepriv)));
1403                         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1404                 }
1405
1406         } else {/* if join_res < 0 (join fails), then try again */
1407
1408                 #ifdef REJOIN
1409                 res = _FAIL;
1410                 if (retry < 2) {
1411                         res = rtw_select_and_join_from_scanned_queue(pmlmepriv);
1412                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_select_and_join_from_scanned_queue again! res:%d\n", res));
1413                 }
1414
1415                 if (res == _SUCCESS) {
1416                         /* extend time of assoc_timer */
1417                         _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
1418                         retry++;
1419                 } else if (res == 2) {/* there is no need to wait for join */
1420                         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1421                         rtw_indicate_connect(adapter);
1422                 } else {
1423                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Set Assoc_Timer = 1; can't find match ssid in scanned_q\n"));
1424                 #endif
1425
1426                         _set_timer(&pmlmepriv->assoc_timer, 1);
1427                         /* rtw_free_assoc_resources(adapter, 1); */
1428                         _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1429
1430                 #ifdef REJOIN
1431                         retry = 0;
1432                 }
1433                 #endif
1434         }
1435
1436 ignore_joinbss_callback:
1437
1438         spin_unlock_bh(&pmlmepriv->lock);
1439 }
1440
1441 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1442 {
1443         struct wlan_network     *pnetwork       = (struct wlan_network *)pbuf;
1444
1445         mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1446
1447         rtw_os_xmit_schedule(adapter);
1448 }
1449
1450 /* FOR STA, AP , AD-HOC mode */
1451 void rtw_sta_media_status_rpt(struct adapter *adapter, struct sta_info *psta, u32 mstatus)
1452 {
1453         u16 media_status_rpt;
1454
1455         if (!psta)
1456                 return;
1457
1458         media_status_rpt = (u16)((psta->mac_id<<8)|mstatus); /*   MACID|OPMODE:1 connect */
1459         rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status_rpt);
1460 }
1461
1462 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1463 {
1464         struct sta_info *psta;
1465         struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1466         struct stassoc_event    *pstassoc       = (struct stassoc_event *)pbuf;
1467         struct wlan_network     *cur_network = &(pmlmepriv->cur_network);
1468         struct wlan_network     *ptarget_wlan = NULL;
1469
1470         if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1471                 return;
1472
1473         if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1474                 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1475                 if (psta) {
1476                         u8 *passoc_req = NULL;
1477                         u32 assoc_req_len = 0;
1478
1479                         rtw_sta_media_status_rpt(adapter, psta, 1);
1480
1481 #ifndef CONFIG_AUTO_AP_MODE
1482
1483                         ap_sta_info_defer_update(adapter, psta);
1484
1485                         /* report to upper layer */
1486                         DBG_871X("indicate_sta_assoc_event to upper layer - hostapd\n");
1487                         spin_lock_bh(&psta->lock);
1488                         if (psta->passoc_req && psta->assoc_req_len > 0) {
1489                                 passoc_req = rtw_zmalloc(psta->assoc_req_len);
1490                                 if (passoc_req) {
1491                                         assoc_req_len = psta->assoc_req_len;
1492                                         memcpy(passoc_req, psta->passoc_req, assoc_req_len);
1493
1494                                         kfree(psta->passoc_req);
1495                                         psta->passoc_req = NULL;
1496                                         psta->assoc_req_len = 0;
1497                                 }
1498                         }
1499                         spin_unlock_bh(&psta->lock);
1500
1501                         if (passoc_req && assoc_req_len > 0) {
1502                                 rtw_cfg80211_indicate_sta_assoc(adapter, passoc_req, assoc_req_len);
1503
1504                                 kfree(passoc_req);
1505                         }
1506 #endif /* CONFIG_AUTO_AP_MODE */
1507                 }
1508                 return;
1509         }
1510
1511         /* for AD-HOC mode */
1512         psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1513         if (psta) {
1514                 /* the sta have been in sta_info_queue => do nothing */
1515
1516                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1517
1518                 return; /* between drv has received this event before and  fw have not yet to set key to CAM_ENTRY) */
1519         }
1520
1521         psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1522         if (!psta) {
1523                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1524                 return;
1525         }
1526
1527         /* to do : init sta_info variable */
1528         psta->qos_option = 0;
1529         psta->mac_id = (uint)pstassoc->cam_id;
1530         /* psta->aid = (uint)pstassoc->cam_id; */
1531         DBG_871X("%s\n", __func__);
1532         /* for ad-hoc mode */
1533         rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1534
1535         rtw_sta_media_status_rpt(adapter, psta, 1);
1536
1537         if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1538                 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1539
1540         psta->ieee8021x_blocked = false;
1541
1542         spin_lock_bh(&pmlmepriv->lock);
1543
1544         if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
1545                 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
1546                 if (adapter->stapriv.asoc_sta_count == 2) {
1547                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1548                         ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1549                         pmlmepriv->cur_network_scanned = ptarget_wlan;
1550                         if (ptarget_wlan)
1551                                 ptarget_wlan->fixed = true;
1552                         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1553                         /*  a sta + bc/mc_stainfo (not Ibss_stainfo) */
1554                         rtw_indicate_connect(adapter);
1555                 }
1556         }
1557
1558         spin_unlock_bh(&pmlmepriv->lock);
1559
1560         mlmeext_sta_add_event_callback(adapter, psta);
1561 }
1562
1563 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1564 {
1565         int mac_id = (-1);
1566         struct sta_info *psta;
1567         struct wlan_network *pwlan = NULL;
1568         struct wlan_bssid_ex    *pdev_network = NULL;
1569         u8 *pibss = NULL;
1570         struct  mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1571         struct  stadel_event *pstadel   = (struct stadel_event *)pbuf;
1572         struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1573         struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1574         struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1575
1576         psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1577         if (psta)
1578                 mac_id = psta->mac_id;
1579         else
1580                 mac_id = pstadel->mac_id;
1581
1582         DBG_871X("%s(mac_id =%d) =" MAC_FMT "\n", __func__, mac_id, MAC_ARG(pstadel->macaddr));
1583
1584         if (mac_id >= 0) {
1585                 u16 media_status;
1586                 media_status = (mac_id<<8)|0; /*   MACID|OPMODE:0 means disconnect */
1587                 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1588                 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1589         }
1590
1591         /* if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) */
1592         if ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE)
1593                 return;
1594
1595         mlmeext_sta_del_event_callback(adapter);
1596
1597         spin_lock_bh(&pmlmepriv->lock);
1598
1599         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1600                 u16 reason = *((unsigned short *)(pstadel->rsvd));
1601                 bool roam = false;
1602                 struct wlan_network *roam_target = NULL;
1603
1604                 if (adapter->registrypriv.wifi_spec == 1) {
1605                         roam = false;
1606                 } else if (reason == WLAN_REASON_EXPIRATION_CHK && rtw_chk_roam_flags(adapter, RTW_ROAM_ON_EXPIRED)) {
1607                         roam = true;
1608                 } else if (reason == WLAN_REASON_ACTIVE_ROAM && rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1609                         roam = true;
1610                         roam_target = pmlmepriv->roam_network;
1611                 }
1612
1613                 if (roam) {
1614                         if (rtw_to_roam(adapter) > 0)
1615                                 rtw_dec_to_roam(adapter); /* this stadel_event is caused by roaming, decrease to_roam */
1616                         else if (rtw_to_roam(adapter) == 0)
1617                                 rtw_set_to_roam(adapter, adapter->registrypriv.max_roaming_times);
1618                 } else {
1619                         rtw_set_to_roam(adapter, 0);
1620                 }
1621
1622                 rtw_free_uc_swdec_pending_queue(adapter);
1623
1624                 rtw_free_assoc_resources(adapter, 1);
1625                 rtw_indicate_disconnect(adapter);
1626
1627                 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1628                 /*  remove the network entry in scanned_queue */
1629                 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1630                 if (pwlan) {
1631                         pwlan->fixed = false;
1632                         rtw_free_network_nolock(adapter, pwlan);
1633                 }
1634                 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1635
1636                 _rtw_roaming(adapter, roam_target);
1637         }
1638
1639         if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1640               check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1641
1642                 rtw_free_stainfo(adapter,  psta);
1643
1644                 if (adapter->stapriv.asoc_sta_count == 1) {/* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1645                         /* rtw_indicate_disconnect(adapter);removed@20091105 */
1646                         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1647                         /* free old ibss network */
1648                         /* pwlan = rtw_find_network(&pmlmepriv->scanned_queue, pstadel->macaddr); */
1649                         pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1650                         if (pwlan) {
1651                                 pwlan->fixed = false;
1652                                 rtw_free_network_nolock(adapter, pwlan);
1653                         }
1654                         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1655                         /* re-create ibss */
1656                         pdev_network = &(adapter->registrypriv.dev_network);
1657                         pibss = adapter->registrypriv.dev_network.MacAddress;
1658
1659                         memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1660
1661                         memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1662
1663                         rtw_update_registrypriv_dev_network(adapter);
1664
1665                         rtw_generate_random_ibss(pibss);
1666
1667                         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1668                                 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1669                                 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1670                         }
1671
1672                         if (rtw_createbss_cmd(adapter) != _SUCCESS)
1673                                 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error =>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1674                 }
1675
1676         }
1677
1678         spin_unlock_bh(&pmlmepriv->lock);
1679 }
1680
1681 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1682 {
1683         struct reportpwrstate_parm *preportpwrstate;
1684
1685         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1686         preportpwrstate = (struct reportpwrstate_parm *)pbuf;
1687         preportpwrstate->state |= (u8)(adapter_to_pwrctl(padapter)->cpwm_tog + 0x80);
1688         cpwm_int_hdl(padapter, preportpwrstate);
1689 }
1690
1691 void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf)
1692 {
1693         WMMOnAssocRsp(padapter);
1694 }
1695
1696 /*
1697 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1698 * @adapter: pointer to struct adapter structure
1699 */
1700 void _rtw_join_timeout_handler(struct timer_list *t)
1701 {
1702         struct adapter *adapter = from_timer(adapter, t,
1703                                                   mlmepriv.assoc_timer);
1704         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
1705
1706         DBG_871X("%s, fw_state =%x\n", __func__, get_fwstate(pmlmepriv));
1707
1708         if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1709                 return;
1710
1711         spin_lock_bh(&pmlmepriv->lock);
1712
1713         if (rtw_to_roam(adapter) > 0) { /* join timeout caused by roaming */
1714                 while (1) {
1715                         rtw_dec_to_roam(adapter);
1716                         if (rtw_to_roam(adapter) != 0) { /* try another */
1717                                 int do_join_r;
1718                                 DBG_871X("%s try another roaming\n", __func__);
1719                                 do_join_r = rtw_do_join(adapter);
1720                                 if (_SUCCESS != do_join_r) {
1721                                         DBG_871X("%s roaming do_join return %d\n", __func__, do_join_r);
1722                                         continue;
1723                                 }
1724                                 break;
1725                         } else {
1726                                 DBG_871X("%s We've try roaming but fail\n", __func__);
1727                                 rtw_indicate_disconnect(adapter);
1728                                 break;
1729                         }
1730                 }
1731
1732         } else {
1733                 rtw_indicate_disconnect(adapter);
1734                 free_scanqueue(pmlmepriv);/*  */
1735
1736                 /* indicate disconnect for the case that join_timeout and check_fwstate != FW_LINKED */
1737                 rtw_cfg80211_indicate_disconnect(adapter);
1738
1739         }
1740
1741         spin_unlock_bh(&pmlmepriv->lock);
1742 }
1743
1744 /*
1745 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1746 * @adapter: pointer to struct adapter structure
1747 */
1748 void rtw_scan_timeout_handler(struct timer_list *t)
1749 {
1750         struct adapter *adapter = from_timer(adapter, t,
1751                                                   mlmepriv.scan_to_timer);
1752         struct  mlme_priv *pmlmepriv = &adapter->mlmepriv;
1753
1754         DBG_871X(FUNC_ADPT_FMT" fw_state =%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1755
1756         spin_lock_bh(&pmlmepriv->lock);
1757
1758         _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1759
1760         spin_unlock_bh(&pmlmepriv->lock);
1761
1762         rtw_indicate_scan_done(adapter, true);
1763 }
1764
1765 void rtw_mlme_reset_auto_scan_int(struct adapter *adapter)
1766 {
1767         struct mlme_priv *mlme = &adapter->mlmepriv;
1768         struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1769         struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1770
1771         if (pmlmeinfo->VHT_enable) /* disable auto scan when connect to 11AC AP */
1772                 mlme->auto_scan_int_ms = 0;
1773         else if (adapter->registrypriv.wifi_spec && is_client_associated_to_ap(adapter) == true)
1774                 mlme->auto_scan_int_ms = 60*1000;
1775         else if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1776                 if (check_fwstate(mlme, WIFI_STATION_STATE) && check_fwstate(mlme, _FW_LINKED))
1777                         mlme->auto_scan_int_ms = mlme->roam_scan_int_ms;
1778         } else
1779                 mlme->auto_scan_int_ms = 0; /* disabled */
1780 }
1781
1782 static void rtw_auto_scan_handler(struct adapter *padapter)
1783 {
1784         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1785
1786         rtw_mlme_reset_auto_scan_int(padapter);
1787
1788         if (pmlmepriv->auto_scan_int_ms != 0
1789                 && jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time) > pmlmepriv->auto_scan_int_ms) {
1790
1791                 if (!padapter->registrypriv.wifi_spec) {
1792                         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == true) {
1793                                 DBG_871X(FUNC_ADPT_FMT" _FW_UNDER_SURVEY|_FW_UNDER_LINKING\n", FUNC_ADPT_ARG(padapter));
1794                                 goto exit;
1795                         }
1796
1797                         if (pmlmepriv->LinkDetectInfo.bBusyTraffic) {
1798                                 DBG_871X(FUNC_ADPT_FMT" exit BusyTraffic\n", FUNC_ADPT_ARG(padapter));
1799                                 goto exit;
1800                         }
1801                 }
1802
1803                 DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));
1804
1805                 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1806         }
1807
1808 exit:
1809         return;
1810 }
1811
1812 void rtw_dynamic_check_timer_handler(struct adapter *adapter)
1813 {
1814         if (!adapter)
1815                 return;
1816
1817         if (!adapter->hw_init_completed)
1818                 return;
1819
1820         if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1821                 return;
1822
1823         if (adapter->net_closed)
1824                 return;
1825
1826         if (is_primary_adapter(adapter))
1827                 DBG_871X("IsBtDisabled =%d, IsBtControlLps =%d\n", hal_btcoex_IsBtDisabled(adapter), hal_btcoex_IsBtControlLps(adapter));
1828
1829         if ((adapter_to_pwrctl(adapter)->bFwCurrentInPSMode)
1830                 && !(hal_btcoex_IsBtControlLps(adapter))
1831                 ) {
1832                 u8 bEnterPS;
1833
1834                 linked_status_chk(adapter);
1835
1836                 bEnterPS = traffic_status_watchdog(adapter, 1);
1837                 if (bEnterPS) {
1838                         /* rtw_lps_ctrl_wk_cmd(adapter, LPS_CTRL_ENTER, 1); */
1839                         rtw_hal_dm_watchdog_in_lps(adapter);
1840                 } else {
1841                         /* call rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1) in traffic_status_watchdog() */
1842                 }
1843
1844         } else {
1845                 if (is_primary_adapter(adapter))
1846                         rtw_dynamic_chk_wk_cmd(adapter);
1847         }
1848
1849         /* auto site survey */
1850         rtw_auto_scan_handler(adapter);
1851 }
1852
1853 inline bool rtw_is_scan_deny(struct adapter *adapter)
1854 {
1855         struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1856         return (atomic_read(&mlmepriv->set_scan_deny) != 0) ? true : false;
1857 }
1858
1859 inline void rtw_clear_scan_deny(struct adapter *adapter)
1860 {
1861         struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1862         atomic_set(&mlmepriv->set_scan_deny, 0);
1863
1864         DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
1865 }
1866
1867 void rtw_set_scan_deny(struct adapter *adapter, u32 ms)
1868 {
1869         struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1870
1871         DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
1872         atomic_set(&mlmepriv->set_scan_deny, 1);
1873         _set_timer(&mlmepriv->set_scan_deny_timer, ms);
1874 }
1875
1876 /*
1877 * Select a new roaming candidate from the original @param candidate and @param competitor
1878 * @return true: candidate is updated
1879 * @return false: candidate is not updated
1880 */
1881 static int rtw_check_roaming_candidate(struct mlme_priv *mlme
1882         , struct wlan_network **candidate, struct wlan_network *competitor)
1883 {
1884         int updated = false;
1885         struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1886
1887         if (is_same_ess(&competitor->network, &mlme->cur_network.network) == false)
1888                 goto exit;
1889
1890         if (rtw_is_desired_network(adapter, competitor) == false)
1891                 goto exit;
1892
1893         DBG_871X("roam candidate:%s %s("MAC_FMT", ch%3u) rssi:%d, age:%5d\n",
1894                 (competitor == mlme->cur_network_scanned)?"*":" ",
1895                 competitor->network.Ssid.Ssid,
1896                 MAC_ARG(competitor->network.MacAddress),
1897                 competitor->network.Configuration.DSConfig,
1898                 (int)competitor->network.Rssi,
1899                 jiffies_to_msecs(jiffies - competitor->last_scanned)
1900         );
1901
1902         /* got specific addr to roam */
1903         if (!is_zero_mac_addr(mlme->roam_tgt_addr)) {
1904                 if (!memcmp(mlme->roam_tgt_addr, competitor->network.MacAddress, ETH_ALEN))
1905                         goto update;
1906                 else
1907                         goto exit;
1908         }
1909         if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms)
1910                 goto exit;
1911
1912         if (competitor->network.Rssi - mlme->cur_network_scanned->network.Rssi < mlme->roam_rssi_diff_th)
1913                 goto exit;
1914
1915         if (*candidate != NULL && (*candidate)->network.Rssi >= competitor->network.Rssi)
1916                 goto exit;
1917
1918 update:
1919         *candidate = competitor;
1920         updated = true;
1921
1922 exit:
1923         return updated;
1924 }
1925
1926 int rtw_select_roaming_candidate(struct mlme_priv *mlme)
1927 {
1928         int ret = _FAIL;
1929         struct list_head        *phead;
1930         struct __queue  *queue  = &(mlme->scanned_queue);
1931         struct  wlan_network    *pnetwork = NULL;
1932         struct  wlan_network    *candidate = NULL;
1933
1934         if (!mlme->cur_network_scanned) {
1935                 rtw_warn_on(1);
1936                 return ret;
1937         }
1938
1939         spin_lock_bh(&(mlme->scanned_queue.lock));
1940         phead = get_list_head(queue);
1941
1942         mlme->pscanned = get_next(phead);
1943
1944         while (phead != mlme->pscanned) {
1945
1946                 pnetwork = LIST_CONTAINOR(mlme->pscanned, struct wlan_network, list);
1947                 if (!pnetwork) {
1948                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork == NULL)\n", __func__));
1949                         ret = _FAIL;
1950                         goto exit;
1951                 }
1952
1953                 mlme->pscanned = get_next(mlme->pscanned);
1954
1955                 DBG_871X("%s("MAC_FMT", ch%u) rssi:%d\n"
1956                         , pnetwork->network.Ssid.Ssid
1957                         , MAC_ARG(pnetwork->network.MacAddress)
1958                         , pnetwork->network.Configuration.DSConfig
1959                         , (int)pnetwork->network.Rssi);
1960
1961                 rtw_check_roaming_candidate(mlme, &candidate, pnetwork);
1962
1963         }
1964
1965         if (!candidate) {
1966                 DBG_871X("%s: return _FAIL(candidate == NULL)\n", __func__);
1967                 ret = _FAIL;
1968                 goto exit;
1969         } else {
1970                 DBG_871X("%s: candidate: %s("MAC_FMT", ch:%u)\n", __func__,
1971                         candidate->network.Ssid.Ssid, MAC_ARG(candidate->network.MacAddress),
1972                         candidate->network.Configuration.DSConfig);
1973
1974                 mlme->roam_network = candidate;
1975
1976                 if (!memcmp(candidate->network.MacAddress, mlme->roam_tgt_addr, ETH_ALEN))
1977                         eth_zero_addr(mlme->roam_tgt_addr);
1978         }
1979
1980         ret = _SUCCESS;
1981 exit:
1982         spin_unlock_bh(&(mlme->scanned_queue.lock));
1983
1984         return ret;
1985 }
1986
1987 /*
1988 * Select a new join candidate from the original @param candidate and @param competitor
1989 * @return true: candidate is updated
1990 * @return false: candidate is not updated
1991 */
1992 static int rtw_check_join_candidate(struct mlme_priv *mlme
1993         , struct wlan_network **candidate, struct wlan_network *competitor)
1994 {
1995         int updated = false;
1996         struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1997
1998         /* check bssid, if needed */
1999         if (mlme->assoc_by_bssid) {
2000                 if (memcmp(competitor->network.MacAddress, mlme->assoc_bssid, ETH_ALEN))
2001                         goto exit;
2002         }
2003
2004         /* check ssid, if needed */
2005         if (mlme->assoc_ssid.Ssid[0] && mlme->assoc_ssid.SsidLength) {
2006                 if (competitor->network.Ssid.SsidLength != mlme->assoc_ssid.SsidLength
2007                         || memcmp(competitor->network.Ssid.Ssid, mlme->assoc_ssid.Ssid, mlme->assoc_ssid.SsidLength)
2008                 )
2009                         goto exit;
2010         }
2011
2012         if (rtw_is_desired_network(adapter, competitor)  == false)
2013                 goto exit;
2014
2015         if (rtw_to_roam(adapter) > 0) {
2016                 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms
2017                         || is_same_ess(&competitor->network, &mlme->cur_network.network) == false
2018                 )
2019                         goto exit;
2020         }
2021
2022         if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
2023                 *candidate = competitor;
2024                 updated = true;
2025         }
2026
2027         if (updated) {
2028                 DBG_871X("[by_bssid:%u][assoc_ssid:%s]"
2029                         "[to_roam:%u] "
2030                         "new candidate: %s("MAC_FMT", ch%u) rssi:%d\n",
2031                         mlme->assoc_by_bssid,
2032                         mlme->assoc_ssid.Ssid,
2033                         rtw_to_roam(adapter),
2034                         (*candidate)->network.Ssid.Ssid,
2035                         MAC_ARG((*candidate)->network.MacAddress),
2036                         (*candidate)->network.Configuration.DSConfig,
2037                         (int)(*candidate)->network.Rssi
2038                 );
2039         }
2040
2041 exit:
2042         return updated;
2043 }
2044
2045 /*
2046 Calling context:
2047 The caller of the sub-routine will be in critical section...
2048 The caller must hold the following spinlock
2049 pmlmepriv->lock
2050 */
2051
2052 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
2053 {
2054         int ret;
2055         struct list_head        *phead;
2056         struct adapter *adapter;
2057         struct __queue  *queue  = &(pmlmepriv->scanned_queue);
2058         struct  wlan_network    *pnetwork = NULL;
2059         struct  wlan_network    *candidate = NULL;
2060
2061         adapter = (struct adapter *)pmlmepriv->nic_hdl;
2062
2063         spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
2064
2065         if (pmlmepriv->roam_network) {
2066                 candidate = pmlmepriv->roam_network;
2067                 pmlmepriv->roam_network = NULL;
2068                 goto candidate_exist;
2069         }
2070
2071         phead = get_list_head(queue);
2072         pmlmepriv->pscanned = get_next(phead);
2073
2074         while (phead != pmlmepriv->pscanned) {
2075
2076                 pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, struct wlan_network, list);
2077                 if (!pnetwork) {
2078                         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork == NULL)\n", __func__));
2079                         ret = _FAIL;
2080                         goto exit;
2081                 }
2082
2083                 pmlmepriv->pscanned = get_next(pmlmepriv->pscanned);
2084
2085                 DBG_871X("%s("MAC_FMT", ch%u) rssi:%d\n"
2086                         , pnetwork->network.Ssid.Ssid
2087                         , MAC_ARG(pnetwork->network.MacAddress)
2088                         , pnetwork->network.Configuration.DSConfig
2089                         , (int)pnetwork->network.Rssi);
2090
2091                 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
2092
2093         }
2094
2095         if (!candidate) {
2096                 DBG_871X("%s: return _FAIL(candidate == NULL)\n", __func__);
2097 #ifdef CONFIG_WOWLAN
2098                 _clr_fwstate_(pmlmepriv, _FW_LINKED|_FW_UNDER_LINKING);
2099 #endif
2100                 ret = _FAIL;
2101                 goto exit;
2102         } else {
2103                 DBG_871X("%s: candidate: %s("MAC_FMT", ch:%u)\n", __func__,
2104                         candidate->network.Ssid.Ssid, MAC_ARG(candidate->network.MacAddress),
2105                         candidate->network.Configuration.DSConfig);
2106                 goto candidate_exist;
2107         }
2108
2109 candidate_exist:
2110
2111         /*  check for situation of  _FW_LINKED */
2112         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
2113                 DBG_871X("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
2114
2115                 rtw_disassoc_cmd(adapter, 0, true);
2116                 rtw_indicate_disconnect(adapter);
2117                 rtw_free_assoc_resources(adapter, 0);
2118         }
2119
2120         set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
2121         ret = rtw_joinbss_cmd(adapter, candidate);
2122
2123 exit:
2124         spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
2125         return ret;
2126 }
2127
2128 sint rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
2129 {
2130         struct  cmd_obj *pcmd;
2131         struct  setauth_parm *psetauthparm;
2132         struct  cmd_priv *pcmdpriv = &(adapter->cmdpriv);
2133         sint            res = _SUCCESS;
2134
2135         pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
2136         if (!pcmd) {
2137                 res = _FAIL;  /* try again */
2138                 goto exit;
2139         }
2140
2141         psetauthparm = rtw_zmalloc(sizeof(struct setauth_parm));
2142         if (!psetauthparm) {
2143                 kfree(pcmd);
2144                 res = _FAIL;
2145                 goto exit;
2146         }
2147
2148         psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
2149
2150         pcmd->cmdcode = _SetAuth_CMD_;
2151         pcmd->parmbuf = (unsigned char *)psetauthparm;
2152         pcmd->cmdsz =  (sizeof(struct setauth_parm));
2153         pcmd->rsp = NULL;
2154         pcmd->rspsz = 0;
2155
2156         INIT_LIST_HEAD(&pcmd->list);
2157
2158         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("after enqueue set_auth_cmd, auth_mode =%x\n", psecuritypriv->dot11AuthAlgrthm));
2159
2160         res = rtw_enqueue_cmd(pcmdpriv, pcmd);
2161
2162 exit:
2163         return res;
2164 }
2165
2166 sint rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, sint keyid, u8 set_tx, bool enqueue)
2167 {
2168         u8 keylen;
2169         struct cmd_obj          *pcmd;
2170         struct setkey_parm      *psetkeyparm;
2171         struct cmd_priv         *pcmdpriv = &(adapter->cmdpriv);
2172         sint    res = _SUCCESS;
2173
2174         psetkeyparm = rtw_zmalloc(sizeof(struct setkey_parm));
2175         if (!psetkeyparm) {
2176                 res = _FAIL;
2177                 goto exit;
2178         }
2179
2180         if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
2181                 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
2182                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =(unsigned char)psecuritypriv->dot118021XGrpPrivacy =%d\n", psetkeyparm->algorithm));
2183         } else {
2184                 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
2185                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =(u8)psecuritypriv->dot11PrivacyAlgrthm =%d\n", psetkeyparm->algorithm));
2186
2187         }
2188         psetkeyparm->keyid = (u8)keyid;/* 0~3 */
2189         psetkeyparm->set_tx = set_tx;
2190         if (is_wep_enc(psetkeyparm->algorithm))
2191                 adapter->securitypriv.key_mask |= BIT(psetkeyparm->keyid);
2192
2193         DBG_871X("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n", psetkeyparm->algorithm, psetkeyparm->keyid, adapter->securitypriv.key_mask);
2194         RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =%d psetkeyparm->keyid =(u8)keyid =%d\n", psetkeyparm->algorithm, keyid));
2195
2196         switch (psetkeyparm->algorithm) {
2197
2198         case _WEP40_:
2199                 keylen = 5;
2200                 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
2201                 break;
2202         case _WEP104_:
2203                 keylen = 13;
2204                 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
2205                 break;
2206         case _TKIP_:
2207                 keylen = 16;
2208                 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
2209                 psetkeyparm->grpkey = 1;
2210                 break;
2211         case _AES_:
2212                 keylen = 16;
2213                 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
2214                 psetkeyparm->grpkey = 1;
2215                 break;
2216         default:
2217                 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm = %x (must be 1 or 2 or 4 or 5)\n", psecuritypriv->dot11PrivacyAlgrthm));
2218                 res = _FAIL;
2219                 kfree(psetkeyparm);
2220                 goto exit;
2221         }
2222
2223         if (enqueue) {
2224                 pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
2225                 if (!pcmd) {
2226                         kfree(psetkeyparm);
2227                         res = _FAIL;  /* try again */
2228                         goto exit;
2229                 }
2230
2231                 pcmd->cmdcode = _SetKey_CMD_;
2232                 pcmd->parmbuf = (u8 *)psetkeyparm;
2233                 pcmd->cmdsz =  (sizeof(struct setkey_parm));
2234                 pcmd->rsp = NULL;
2235                 pcmd->rspsz = 0;
2236
2237                 INIT_LIST_HEAD(&pcmd->list);
2238
2239                 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
2240         } else {
2241                 setkey_hdl(adapter, (u8 *)psetkeyparm);
2242                 kfree(psetkeyparm);
2243         }
2244 exit:
2245         return res;
2246 }
2247
2248 /* adjust IEs for rtw_joinbss_cmd in WMM */
2249 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
2250 {
2251         unsigned        int ielength = 0;
2252         unsigned int i, j;
2253
2254         i = 12; /* after the fixed IE */
2255         while (i < in_len) {
2256                 ielength = initial_out_len;
2257
2258                 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) { /* WMM element ID and OUI */
2259                         for (j = i; j < i + 9; j++) {
2260                                         out_ie[ielength] = in_ie[j];
2261                                         ielength++;
2262                         }
2263                         out_ie[initial_out_len + 1] = 0x07;
2264                         out_ie[initial_out_len + 6] = 0x00;
2265                         out_ie[initial_out_len + 8] = 0x00;
2266
2267                         break;
2268                 }
2269
2270                 i += (in_ie[i+1]+2); /*  to the next IE element */
2271         }
2272
2273         return ielength;
2274
2275 }
2276
2277 /*  */
2278 /*  Ported from 8185: IsInPreAuthKeyList(). (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */
2279 /*  Added by Annie, 2006-05-07. */
2280 /*  */
2281 /*  Search by BSSID, */
2282 /*  Return Value: */
2283 /*              -1              :if there is no pre-auth key in the  table */
2284 /*              >= 0            :if there is pre-auth key, and   return the entry id */
2285 /*  */
2286 /*  */
2287
2288 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
2289 {
2290         struct security_priv *psecuritypriv = &Adapter->securitypriv;
2291         int i = 0;
2292
2293         do {
2294                 if ((psecuritypriv->PMKIDList[i].bUsed) &&
2295                                 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
2296                         break;
2297                 } else {
2298                         i++;
2299                         /* continue; */
2300                 }
2301
2302         } while (i < NUM_PMKID_CACHE);
2303
2304         if (i == NUM_PMKID_CACHE) {
2305                 i = -1;/*  Could not find. */
2306         } else {
2307                 /*  There is one Pre-Authentication Key for the specific BSSID. */
2308         }
2309
2310         return i;
2311
2312 }
2313
2314 /*  */
2315 /*  Check the RSN IE length */
2316 /*  If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
2317 /*  0-11th element in the array are the fixed IE */
2318 /*  12th element in the array is the IE */
2319 /*  13th element in the array is the IE length */
2320 /*  */
2321
2322 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
2323 {
2324         struct security_priv *psecuritypriv = &Adapter->securitypriv;
2325
2326         if (ie[13] <= 20) {
2327                 /*  The RSN IE didn't include the PMK ID, append the PMK information */
2328                         ie[ie_len] = 1;
2329                         ie_len++;
2330                         ie[ie_len] = 0; /* PMKID count = 0x0100 */
2331                         ie_len++;
2332                         memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
2333
2334                         ie_len += 16;
2335                         ie[13] += 18;/* PMKID length = 2+16 */
2336
2337         }
2338         return ie_len;
2339 }
2340
2341 sint rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
2342 {
2343         u8 authmode = 0x0;
2344         uint    ielength;
2345         int iEntry;
2346
2347         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
2348         struct security_priv *psecuritypriv = &adapter->securitypriv;
2349         uint    ndisauthmode = psecuritypriv->ndisauthtype;
2350
2351         RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
2352                  ("+rtw_restruct_sec_ie: ndisauthmode =%d\n", ndisauthmode));
2353
2354         /* copy fixed ie only */
2355         memcpy(out_ie, in_ie, 12);
2356         ielength = 12;
2357         if ((ndisauthmode == Ndis802_11AuthModeWPA) || (ndisauthmode == Ndis802_11AuthModeWPAPSK))
2358                         authmode = _WPA_IE_ID_;
2359         if ((ndisauthmode == Ndis802_11AuthModeWPA2) || (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
2360                         authmode = _WPA2_IE_ID_;
2361
2362         if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
2363                 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
2364
2365                 ielength += psecuritypriv->wps_ie_len;
2366         } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
2367                 /* copy RSN or SSN */
2368                 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
2369                 /* debug for CONFIG_IEEE80211W
2370                 {
2371                         int jj;
2372                         printk("supplicant_ie_length =%d &&&&&&&&&&&&&&&&&&&\n", psecuritypriv->supplicant_ie[1]+2);
2373                         for (jj = 0; jj < psecuritypriv->supplicant_ie[1]+2; jj++)
2374                                 printk(" %02x ", psecuritypriv->supplicant_ie[jj]);
2375                         printk("\n");
2376                 }*/
2377                 ielength += psecuritypriv->supplicant_ie[1]+2;
2378                 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
2379         }
2380
2381         iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
2382         if (iEntry < 0) {
2383                 return ielength;
2384         } else {
2385                 if (authmode == _WPA2_IE_ID_)
2386                         ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
2387         }
2388         return ielength;
2389 }
2390
2391 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
2392 {
2393         struct registry_priv *pregistrypriv = &adapter->registrypriv;
2394         struct eeprom_priv *peepriv = &adapter->eeprompriv;
2395         struct wlan_bssid_ex    *pdev_network = &pregistrypriv->dev_network;
2396         u8 *myhwaddr = myid(peepriv);
2397
2398         memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
2399
2400         memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
2401
2402         pdev_network->Configuration.Length = sizeof(struct ndis_802_11_conf);
2403         pdev_network->Configuration.BeaconPeriod = 100;
2404         pdev_network->Configuration.FHConfig.Length = 0;
2405         pdev_network->Configuration.FHConfig.HopPattern = 0;
2406         pdev_network->Configuration.FHConfig.HopSet = 0;
2407         pdev_network->Configuration.FHConfig.DwellTime = 0;
2408 }
2409
2410 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
2411 {
2412         int sz = 0;
2413         struct registry_priv *pregistrypriv = &adapter->registrypriv;
2414         struct wlan_bssid_ex    *pdev_network = &pregistrypriv->dev_network;
2415         struct  security_priv *psecuritypriv = &adapter->securitypriv;
2416         struct  wlan_network    *cur_network = &adapter->mlmepriv.cur_network;
2417         /* struct       xmit_priv *pxmitpriv = &adapter->xmitpriv; */
2418
2419         pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0) ; /*  adhoc no 802.1x */
2420
2421         pdev_network->Rssi = 0;
2422
2423         switch (pregistrypriv->wireless_mode) {
2424         case WIRELESS_11B:
2425                 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
2426                 break;
2427         case WIRELESS_11G:
2428         case WIRELESS_11BG:
2429         case WIRELESS_11_24N:
2430         case WIRELESS_11G_24N:
2431         case WIRELESS_11BG_24N:
2432                 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
2433                 break;
2434         case WIRELESS_11A:
2435         case WIRELESS_11A_5N:
2436                 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
2437                 break;
2438         case WIRELESS_11ABGN:
2439                 if (pregistrypriv->channel > 14)
2440                         pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
2441                 else
2442                         pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
2443                 break;
2444         default:
2445                 /*  TODO */
2446                 break;
2447         }
2448
2449         pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
2450         RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("pregistrypriv->channel =%d, pdev_network->Configuration.DSConfig = 0x%x\n", pregistrypriv->channel, pdev_network->Configuration.DSConfig));
2451
2452         if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
2453                 pdev_network->Configuration.ATIMWindow = (0);
2454
2455         pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
2456
2457         /*  1. Supported rates */
2458         /*  2. IE */
2459
2460         /* rtw_set_supported_rate(pdev_network->SupportedRates, pregistrypriv->wireless_mode) ;  will be called in rtw_generate_ie */
2461         sz = rtw_generate_ie(pregistrypriv);
2462
2463         pdev_network->IELength = sz;
2464
2465         pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex  *)pdev_network);
2466
2467         /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
2468         /* pdev_network->IELength = cpu_to_le32(sz); */
2469 }
2470
2471 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
2472 {
2473 }
2474
2475 /* the function is at passive_level */
2476 void rtw_joinbss_reset(struct adapter *padapter)
2477 {
2478         u8 threshold;
2479         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2480
2481         struct ht_priv  *phtpriv = &pmlmepriv->htpriv;
2482
2483         /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
2484
2485         pmlmepriv->num_FortyMHzIntolerant = 0;
2486
2487         pmlmepriv->num_sta_no_ht = 0;
2488
2489         phtpriv->ampdu_enable = false;/* reset to disabled */
2490
2491         /*  TH = 1 => means that invalidate usb rx aggregation */
2492         /*  TH = 0 => means that validate usb rx aggregation, use init value. */
2493         if (phtpriv->ht_option) {
2494                 if (padapter->registrypriv.wifi_spec == 1)
2495                         threshold = 1;
2496                 else
2497                         threshold = 0;
2498                 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2499         } else {
2500                 threshold = 1;
2501                 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2502         }
2503 }
2504
2505 void rtw_ht_use_default_setting(struct adapter *padapter)
2506 {
2507         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
2508         struct ht_priv  *phtpriv = &pmlmepriv->htpriv;
2509         struct registry_priv *pregistrypriv = &padapter->registrypriv;
2510         bool            bHwLDPCSupport = false, bHwSTBCSupport = false;
2511         bool            bHwSupportBeamformer = false, bHwSupportBeamformee = false;
2512
2513         if (pregistrypriv->wifi_spec)
2514                 phtpriv->bss_coexist = 1;
2515         else
2516                 phtpriv->bss_coexist = 0;
2517
2518         phtpriv->sgi_40m = TEST_FLAG(pregistrypriv->short_gi, BIT1) ? true : false;
2519         phtpriv->sgi_20m = TEST_FLAG(pregistrypriv->short_gi, BIT0) ? true : false;
2520
2521         /*  LDPC support */
2522         rtw_hal_get_def_var(padapter, HAL_DEF_RX_LDPC, (u8 *)&bHwLDPCSupport);
2523         CLEAR_FLAGS(phtpriv->ldpc_cap);
2524         if (bHwLDPCSupport) {
2525                 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT4))
2526                         SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_RX);
2527         }
2528         rtw_hal_get_def_var(padapter, HAL_DEF_TX_LDPC, (u8 *)&bHwLDPCSupport);
2529         if (bHwLDPCSupport) {
2530                 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT5))
2531                         SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX);
2532         }
2533         if (phtpriv->ldpc_cap)
2534                 DBG_871X("[HT] Support LDPC = 0x%02X\n", phtpriv->ldpc_cap);
2535
2536         /*  STBC */
2537         rtw_hal_get_def_var(padapter, HAL_DEF_TX_STBC, (u8 *)&bHwSTBCSupport);
2538         CLEAR_FLAGS(phtpriv->stbc_cap);
2539         if (bHwSTBCSupport) {
2540                 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT5))
2541                         SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX);
2542         }
2543         rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)&bHwSTBCSupport);
2544         if (bHwSTBCSupport) {
2545                 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT4))
2546                         SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX);
2547         }
2548         if (phtpriv->stbc_cap)
2549                 DBG_871X("[HT] Support STBC = 0x%02X\n", phtpriv->stbc_cap);
2550
2551         /*  Beamforming setting */
2552         rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMER, (u8 *)&bHwSupportBeamformer);
2553         rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMEE, (u8 *)&bHwSupportBeamformee);
2554         CLEAR_FLAGS(phtpriv->beamform_cap);
2555         if (TEST_FLAG(pregistrypriv->beamform_cap, BIT4) && bHwSupportBeamformer) {
2556                 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE);
2557                 DBG_871X("[HT] Support Beamformer\n");
2558         }
2559         if (TEST_FLAG(pregistrypriv->beamform_cap, BIT5) && bHwSupportBeamformee) {
2560                 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE);
2561                 DBG_871X("[HT] Support Beamformee\n");
2562         }
2563 }
2564
2565 void rtw_build_wmm_ie_ht(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2566 {
2567         unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
2568         int out_len;
2569         u8 *pframe;
2570
2571         if (padapter->mlmepriv.qospriv.qos_option == 0) {
2572                 out_len = *pout_len;
2573                 pframe = rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
2574                                                         _WMM_IE_Length_, WMM_IE, pout_len);
2575
2576                 padapter->mlmepriv.qospriv.qos_option = 1;
2577         }
2578 }
2579
2580 /* the function is >= passive_level */
2581 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len, u8 channel)
2582 {
2583         u32 ielen, out_len;
2584         enum HT_CAP_AMPDU_FACTOR max_rx_ampdu_factor;
2585         unsigned char *p, *pframe;
2586         struct rtw_ieee80211_ht_cap ht_capie;
2587         u8 cbw40_enable = 0, stbc_rx_enable = 0, rf_type = 0, operation_bw = 0;
2588         struct registry_priv *pregistrypriv = &padapter->registrypriv;
2589         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2590         struct ht_priv  *phtpriv = &pmlmepriv->htpriv;
2591         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2592
2593         phtpriv->ht_option = false;
2594
2595         out_len = *pout_len;
2596
2597         memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
2598
2599         ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_DSSSCCK40);
2600
2601         if (phtpriv->sgi_20m)
2602                 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_20);
2603
2604         /* Get HT BW */
2605         if (!in_ie) {
2606                 /* TDLS: TODO 20/40 issue */
2607                 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
2608                         operation_bw = padapter->mlmeextpriv.cur_bwmode;
2609                         if (operation_bw > CHANNEL_WIDTH_40)
2610                                 operation_bw = CHANNEL_WIDTH_40;
2611                 } else
2612                         /* TDLS: TODO 40? */
2613                         operation_bw = CHANNEL_WIDTH_40;
2614         } else {
2615                 p = rtw_get_ie(in_ie, _HT_ADD_INFO_IE_, &ielen, in_len);
2616                 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2617                         struct HT_info_element *pht_info = (struct HT_info_element *)(p+2);
2618                         if (pht_info->infos[0] & BIT(2)) {
2619                                 switch (pht_info->infos[0] & 0x3) {
2620                                 case 1:
2621                                 case 3:
2622                                         operation_bw = CHANNEL_WIDTH_40;
2623                                         break;
2624                                 default:
2625                                         operation_bw = CHANNEL_WIDTH_20;
2626                                         break;
2627                                 }
2628                         } else {
2629                                 operation_bw = CHANNEL_WIDTH_20;
2630                         }
2631                 }
2632         }
2633
2634         /* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
2635         if (channel > 14) {
2636                 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2637                         cbw40_enable = 1;
2638         } else {
2639                 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2640                         cbw40_enable = 1;
2641         }
2642
2643         if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
2644                 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
2645                 if (phtpriv->sgi_40m)
2646                         ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_40);
2647         }
2648
2649         if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX))
2650                 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_TX_STBC);
2651
2652         /* todo: disable SM power save mode */
2653         ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SM_PS);
2654
2655         if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX)) {
2656                 if ((channel <= 14 && pregistrypriv->rx_stbc == 0x1) || /* enable for 2.4GHz */
2657                         (pregistrypriv->wifi_spec == 1)) {
2658                         stbc_rx_enable = 1;
2659                         DBG_871X("declare supporting RX STBC\n");
2660                 }
2661         }
2662
2663         /* fill default supported_mcs_set */
2664         memcpy(ht_capie.supp_mcs_set, pmlmeext->default_supported_mcs_set, 16);
2665
2666         /* update default supported_mcs_set */
2667         rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2668
2669         switch (rf_type) {
2670         case RF_1T1R:
2671                 if (stbc_rx_enable)
2672                         ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_1R);/* RX STBC One spatial stream */
2673
2674                 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_1R);
2675                 break;
2676
2677         case RF_2T2R:
2678         case RF_1T2R:
2679         default:
2680                 if (stbc_rx_enable)
2681                         ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_2R);/* RX STBC two spatial stream */
2682
2683                 #ifdef CONFIG_DISABLE_MCS13TO15
2684                 if (((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) && (pregistrypriv->wifi_spec != 1))
2685                                 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R_13TO15_OFF);
2686                 else
2687                                 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R);
2688                 #else /* CONFIG_DISABLE_MCS13TO15 */
2689                         set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R);
2690                 #endif /* CONFIG_DISABLE_MCS13TO15 */
2691                 break;
2692         }
2693
2694         {
2695                 u32 rx_packet_offset, max_recvbuf_sz;
2696                 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
2697                 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
2698         }
2699
2700         if (padapter->driver_rx_ampdu_factor != 0xFF)
2701                 max_rx_ampdu_factor =
2702                   (enum HT_CAP_AMPDU_FACTOR)padapter->driver_rx_ampdu_factor;
2703         else
2704                 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR,
2705                                     &max_rx_ampdu_factor);
2706
2707         /* rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor); */
2708         ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
2709
2710         if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
2711                 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
2712         else
2713                 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
2714
2715         pframe = rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
2716                                                 sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2717
2718         phtpriv->ht_option = true;
2719
2720         if (in_ie) {
2721                 p = rtw_get_ie(in_ie, _HT_ADD_INFO_IE_, &ielen, in_len);
2722                 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2723                         out_len = *pout_len;
2724                         pframe = rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
2725                 }
2726         }
2727
2728         return phtpriv->ht_option;
2729
2730 }
2731
2732 /* the function is > passive_level (in critical_section) */
2733 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len, u8 channel)
2734 {
2735         u8 *p, max_ampdu_sz;
2736         int len;
2737         /* struct sta_info *bmc_sta, *psta; */
2738         struct rtw_ieee80211_ht_cap *pht_capie;
2739         struct ieee80211_ht_addt_info *pht_addtinfo;
2740         /* struct recv_reorder_ctrl *preorder_ctrl; */
2741         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2742         struct ht_priv  *phtpriv = &pmlmepriv->htpriv;
2743         /* struct recv_priv *precvpriv = &padapter->recvpriv; */
2744         struct registry_priv *pregistrypriv = &padapter->registrypriv;
2745         /* struct wlan_network *pcur_network = &(pmlmepriv->cur_network);; */
2746         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2747         struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2748         u8 cbw40_enable = 0;
2749
2750         if (!phtpriv->ht_option)
2751                 return;
2752
2753         if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2754                 return;
2755
2756         DBG_871X("+rtw_update_ht_cap()\n");
2757
2758         /* maybe needs check if ap supports rx ampdu. */
2759         if (!(phtpriv->ampdu_enable) && pregistrypriv->ampdu_enable == 1) {
2760                 phtpriv->ampdu_enable = true;
2761         }
2762
2763         /* check Max Rx A-MPDU Size */
2764         len = 0;
2765         p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), _HT_CAPABILITY_IE_, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2766         if (p && len > 0) {
2767                 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2768                 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
2769                 max_ampdu_sz = 1 << (max_ampdu_sz+3); /*  max_ampdu_sz (kbytes); */
2770
2771                 /* DBG_871X("rtw_update_ht_cap(): max_ampdu_sz =%d\n", max_ampdu_sz); */
2772                 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2773
2774         }
2775
2776         len = 0;
2777         p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), _HT_ADD_INFO_IE_, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2778         if (p && len > 0) {
2779                 pht_addtinfo = (struct ieee80211_ht_addt_info *)(p+2);
2780                 /* todo: */
2781         }
2782
2783         if (channel > 14) {
2784                 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2785                         cbw40_enable = 1;
2786         } else {
2787                 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2788                         cbw40_enable = 1;
2789         }
2790
2791         /* update cur_bwmode & cur_ch_offset */
2792         if ((cbw40_enable) &&
2793             (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2794               BIT(1)) && (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2795                 int i;
2796                 u8 rf_type;
2797
2798                 rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2799
2800                 /* update the MCS set */
2801                 for (i = 0; i < 16; i++)
2802                         pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= pmlmeext->default_supported_mcs_set[i];
2803
2804                 /* update the MCS rates */
2805                 switch (rf_type) {
2806                 case RF_1T1R:
2807                 case RF_1T2R:
2808                         set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_1R);
2809                         break;
2810                 case RF_2T2R:
2811                 default:
2812 #ifdef CONFIG_DISABLE_MCS13TO15
2813                         if (pmlmeext->cur_bwmode == CHANNEL_WIDTH_40 && pregistrypriv->wifi_spec != 1)
2814                                 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R_13TO15_OFF);
2815                         else
2816                                 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R);
2817 #else /* CONFIG_DISABLE_MCS13TO15 */
2818                         set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R);
2819 #endif /* CONFIG_DISABLE_MCS13TO15 */
2820                 }
2821
2822                 /* switch to the 40M Hz mode according to the AP */
2823                 /* pmlmeext->cur_bwmode = CHANNEL_WIDTH_40; */
2824                 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2825                 case EXTCHNL_OFFSET_UPPER:
2826                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2827                         break;
2828
2829                 case EXTCHNL_OFFSET_LOWER:
2830                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2831                         break;
2832
2833                 default:
2834                         pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2835                         break;
2836                 }
2837         }
2838
2839         /*  */
2840         /*  Config SM Power Save setting */
2841         /*  */
2842         pmlmeinfo->SM_PS =
2843                 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2844                  0x0C) >> 2;
2845         if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2846                 DBG_871X("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2847
2848         /*  */
2849         /*  Config current HT Protection mode. */
2850         /*  */
2851         pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2852 }
2853
2854 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2855 {
2856         u8 issued;
2857         int priority;
2858         struct sta_info *psta = NULL;
2859         struct ht_priv *phtpriv;
2860         struct pkt_attrib *pattrib = &pxmitframe->attrib;
2861         s32 bmcst = IS_MCAST(pattrib->ra);
2862
2863         /* if (bmcst || (padapter->mlmepriv.LinkDetectInfo.bTxBusyTraffic == false)) */
2864         if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2865                 return;
2866
2867         priority = pattrib->priority;
2868
2869         psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2870         if (pattrib->psta != psta) {
2871                 DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pattrib->psta, psta);
2872                 return;
2873         }
2874
2875         if (!psta) {
2876                 DBG_871X("%s, psta ==NUL\n", __func__);
2877                 return;
2878         }
2879
2880         if (!(psta->state & _FW_LINKED)) {
2881                 DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state);
2882                 return;
2883         }
2884
2885         phtpriv = &psta->htpriv;
2886
2887         if (phtpriv->ht_option && phtpriv->ampdu_enable) {
2888                 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2889                 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2890
2891                 if (0 == issued) {
2892                         DBG_871X("rtw_issue_addbareq_cmd, p =%d\n", priority);
2893                         psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2894                         rtw_addbareq_cmd(padapter, (u8) priority, pattrib->ra);
2895                 }
2896         }
2897
2898 }
2899
2900 void rtw_append_exented_cap(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2901 {
2902         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2903         struct ht_priv  *phtpriv = &pmlmepriv->htpriv;
2904         u8 cap_content[8] = {0};
2905
2906         if (phtpriv->bss_coexist)
2907                 SET_EXT_CAPABILITY_ELE_BSS_COEXIST(cap_content, 1);
2908
2909         rtw_set_ie(out_ie + *pout_len, EID_EXTCapability, 8, cap_content, pout_len);
2910 }
2911
2912 inline void rtw_set_to_roam(struct adapter *adapter, u8 to_roam)
2913 {
2914         if (to_roam == 0)
2915                 adapter->mlmepriv.to_join = false;
2916         adapter->mlmepriv.to_roam = to_roam;
2917 }
2918
2919 inline u8 rtw_dec_to_roam(struct adapter *adapter)
2920 {
2921         adapter->mlmepriv.to_roam--;
2922         return adapter->mlmepriv.to_roam;
2923 }
2924
2925 inline u8 rtw_to_roam(struct adapter *adapter)
2926 {
2927         return adapter->mlmepriv.to_roam;
2928 }
2929
2930 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2931 {
2932         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2933
2934         spin_lock_bh(&pmlmepriv->lock);
2935         _rtw_roaming(padapter, tgt_network);
2936         spin_unlock_bh(&pmlmepriv->lock);
2937 }
2938 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2939 {
2940         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2941         struct wlan_network *cur_network = &pmlmepriv->cur_network;
2942         int do_join_r;
2943
2944         if (0 < rtw_to_roam(padapter)) {
2945                 DBG_871X("roaming from %s("MAC_FMT"), length:%d\n",
2946                                 cur_network->network.Ssid.Ssid, MAC_ARG(cur_network->network.MacAddress),
2947                                 cur_network->network.Ssid.SsidLength);
2948                 memcpy(&pmlmepriv->assoc_ssid, &cur_network->network.Ssid, sizeof(struct ndis_802_11_ssid));
2949
2950                 pmlmepriv->assoc_by_bssid = false;
2951
2952                 while (1) {
2953                         do_join_r = rtw_do_join(padapter);
2954                         if (_SUCCESS == do_join_r) {
2955                                 break;
2956                         } else {
2957                                 DBG_871X("roaming do_join return %d\n", do_join_r);
2958                                 rtw_dec_to_roam(padapter);
2959
2960                                 if (rtw_to_roam(padapter) > 0) {
2961                                         continue;
2962                                 } else {
2963                                         DBG_871X("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2964                                         rtw_indicate_disconnect(padapter);
2965                                         break;
2966                                 }
2967                         }
2968                 }
2969         }
2970
2971 }
2972
2973 sint rtw_linked_check(struct adapter *padapter)
2974 {
2975         if ((check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == true) ||
2976                         (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) == true)) {
2977                 if (padapter->stapriv.asoc_sta_count > 2)
2978                         return true;
2979         } else {        /* Station mode */
2980                 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true)
2981                         return true;
2982         }
2983         return false;
2984 }