drivers/staging/rtl8712/rtl871x_ioctl_set.c

   1 /******************************************************************************
   2  * rtl871x_ioctl_set.c
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  * Linux device driver for RTL8192SU
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  19  *
  20  * Modifications for inclusion into the Linux staging tree are
  21  * Copyright(c) 2010 Larry Finger. All rights reserved.
  22  *
  23  * Contact information:
  24  * WLAN FAE <wlanfae@realtek.com>
  25  * Larry Finger <Larry.Finger@lwfinger.net>
  26  *
  27  ******************************************************************************/
  28
  29 #define _RTL871X_IOCTL_SET_C_
  30
  31 #include "osdep_service.h"
  32 #include "drv_types.h"
  33 #include "rtl871x_ioctl_set.h"
  34 #include "usb_osintf.h"
  35 #include "usb_ops.h"
  36
  37 #define IS_MAC_ADDRESS_BROADCAST(addr) \
  38 ( \
  39         ((addr[0] == 0xff) && (addr[1] == 0xff) && \
  40          (addr[2] == 0xff) && (addr[3] == 0xff) && \
  41          (addr[4] == 0xff) && (addr[5] == 0xff)) ? true : false \
  42 )
  43
  44 static u8 validate_ssid(struct ndis_802_11_ssid *ssid)
  45 {
  46         u8 i;
  47
  48         if (ssid->SsidLength > 32)
  49                 return false;
  50         for (i = 0; i < ssid->SsidLength; i++) {
  51                 /* wifi, printable ascii code must be supported */
  52                 if (!((ssid->Ssid[i] >= 0x20) && (ssid->Ssid[i] <= 0x7e)))
  53                         return false;
  54         }
  55         return true;
  56 }
  57
  58 static u8 do_join(struct _adapter *padapter)
  59 {
  60         struct list_head *plist, *phead;
  61         u8 *pibss = NULL;
  62         struct  mlme_priv       *pmlmepriv = &(padapter->mlmepriv);
  63         struct  __queue *queue  = &(pmlmepriv->scanned_queue);
  64
  65         phead = get_list_head(queue);
  66         plist = get_next(phead);
  67         pmlmepriv->cur_network.join_res = -2;
  68         pmlmepriv->fw_state |= _FW_UNDER_LINKING;
  69         pmlmepriv->pscanned = plist;
  70         pmlmepriv->to_join = true;
  71
  72         /* adhoc mode will start with an empty queue, but skip checking */
  73         if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
  74             _queue_empty(queue)) {
  75                 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
  76                         pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
  77                 /* when set_ssid/set_bssid for do_join(), but scanning queue
  78                  * is empty we try to issue sitesurvey firstly
  79                  */
  80                 if (pmlmepriv->sitesurveyctrl.traffic_busy == false)
  81                         r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid);
  82                 return true;
  83         } else {
  84                 int ret;
  85
  86                 ret = r8712_select_and_join_from_scan(pmlmepriv);
  87                 if (ret == _SUCCESS)
  88                         _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
  89                 else {
  90                         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
  91                                 /* submit r8712_createbss_cmd to change to an
  92                                  * ADHOC_MASTER pmlmepriv->lock has been
  93                                  * acquired by caller...
  94                                  */
  95                                 struct wlan_bssid_ex *pdev_network =
  96                                         &(padapter->registrypriv.dev_network);
  97                                 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
  98                                 pibss = padapter->registrypriv.dev_network.
  99                                         MacAddress;
 100                                 memset(&pdev_network->Ssid, 0,
 101                                         sizeof(struct ndis_802_11_ssid));
 102                                 memcpy(&pdev_network->Ssid,
 103                                         &pmlmepriv->assoc_ssid,
 104                                         sizeof(struct ndis_802_11_ssid));
 105                                 r8712_update_registrypriv_dev_network(padapter);
 106                                 r8712_generate_random_ibss(pibss);
 107                                 if (r8712_createbss_cmd(padapter) != _SUCCESS)
 108                                         return false;
 109                                 pmlmepriv->to_join = false;
 110                         } else {
 111                                 /* can't associate ; reset under-linking */
 112                                 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
 113                                         pmlmepriv->fw_state ^=
 114                                                              _FW_UNDER_LINKING;
 115                                 /* when set_ssid/set_bssid for do_join(), but
 116                                  * there are no desired bss in scanning queue
 117                                  * we try to issue sitesurvey first
 118                                  */
 119                                 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
 120                                         r8712_sitesurvey_cmd(padapter,
 121                                                        &pmlmepriv->assoc_ssid);
 122                         }
 123                 }
 124         }
 125         return true;
 126 }
 127
 128 u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
 129 {
 130         unsigned long irqL;
 131         u8 status = true;
 132         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 133
 134         if ((bssid[0] == 0x00 && bssid[1] == 0x00 && bssid[2] == 0x00 &&
 135              bssid[3] == 0x00 && bssid[4] == 0x00 && bssid[5] == 0x00) ||
 136             (bssid[0] == 0xFF && bssid[1] == 0xFF && bssid[2] == 0xFF &&
 137              bssid[3] == 0xFF && bssid[4] == 0xFF && bssid[5] == 0xFF)) {
 138                 status = false;
 139                 return status;
 140         }
 141         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 142         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
 143             _FW_UNDER_LINKING) == true) {
 144                 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 145                 goto _Abort_Set_BSSID;
 146         }
 147         if (check_fwstate(pmlmepriv,
 148             _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true) {
 149                 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
 150                     ETH_ALEN)) {
 151                         if (check_fwstate(pmlmepriv,
 152                             WIFI_STATION_STATE) == false)
 153                                 goto _Abort_Set_BSSID; /* driver is in
 154                                                 * WIFI_ADHOC_MASTER_STATE */
 155                 } else {
 156                         r8712_disassoc_cmd(padapter);
 157                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 158                                 r8712_ind_disconnect(padapter);
 159                         r8712_free_assoc_resources(padapter);
 160                         if ((check_fwstate(pmlmepriv,
 161                              WIFI_ADHOC_MASTER_STATE))) {
 162                                 _clr_fwstate_(pmlmepriv,
 163                                               WIFI_ADHOC_MASTER_STATE);
 164                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 165                         }
 166                 }
 167         }
 168         memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
 169         pmlmepriv->assoc_by_bssid = true;
 170         status = do_join(padapter);
 171         goto done;
 172 _Abort_Set_BSSID:
 173 done:
 174         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 175         return status;
 176 }
 177
 178 void r8712_set_802_11_ssid(struct _adapter *padapter,
 179                            struct ndis_802_11_ssid *ssid)
 180 {
 181         unsigned long irqL;
 182         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 183         struct wlan_network *pnetwork = &pmlmepriv->cur_network;
 184
 185         if (padapter->hw_init_completed == false)
 186                 return;
 187         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 188         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) {
 189                 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 190                 goto _Abort_Set_SSID;
 191         }
 192         if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE)) {
 193                 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
 194                     (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
 195                     ssid->SsidLength))) {
 196                         if ((check_fwstate(pmlmepriv,
 197                              WIFI_STATION_STATE) == false)) {
 198                                 if (r8712_is_same_ibss(padapter,
 199                                      pnetwork) == false) {
 200                                         /* if in WIFI_ADHOC_MASTER_STATE or
 201                                          *  WIFI_ADHOC_STATE, create bss or
 202                                          * rejoin again
 203                                          */
 204                                         r8712_disassoc_cmd(padapter);
 205                                         if (check_fwstate(pmlmepriv,
 206                                             _FW_LINKED) == true)
 207                                                 r8712_ind_disconnect(padapter);
 208                                         r8712_free_assoc_resources(padapter);
 209                                         if (check_fwstate(pmlmepriv,
 210                                              WIFI_ADHOC_MASTER_STATE)) {
 211                                                 _clr_fwstate_(pmlmepriv,
 212                                                     WIFI_ADHOC_MASTER_STATE);
 213                                                 set_fwstate(pmlmepriv,
 214                                                             WIFI_ADHOC_STATE);
 215                                         }
 216                                 } else
 217                                         goto _Abort_Set_SSID; /* driver is in
 218                                                   * WIFI_ADHOC_MASTER_STATE */
 219                         }
 220                 } else {
 221                         r8712_disassoc_cmd(padapter);
 222                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 223                                 r8712_ind_disconnect(padapter);
 224                         r8712_free_assoc_resources(padapter);
 225                         if (check_fwstate(pmlmepriv,
 226                             WIFI_ADHOC_MASTER_STATE) == true) {
 227                                 _clr_fwstate_(pmlmepriv,
 228                                               WIFI_ADHOC_MASTER_STATE);
 229                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 230                         }
 231                 }
 232         }
 233         if (padapter->securitypriv.btkip_countermeasure == true)
 234                 goto _Abort_Set_SSID;
 235         if (validate_ssid(ssid) == false)
 236                 goto _Abort_Set_SSID;
 237         memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
 238         pmlmepriv->assoc_by_bssid = false;
 239         do_join(padapter);
 240         goto done;
 241 _Abort_Set_SSID:
 242 done:
 243         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 244 }
 245
 246 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
 247         enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
 248 {
 249         unsigned long irqL;
 250         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 251         struct wlan_network     *cur_network = &pmlmepriv->cur_network;
 252         enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
 253                                 &(cur_network->network.InfrastructureMode);
 254
 255         if (*pold_state != networktype) {
 256                 spin_lock_irqsave(&pmlmepriv->lock, irqL);
 257                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 258                     (*pold_state == Ndis802_11IBSS))
 259                         r8712_disassoc_cmd(padapter);
 260                 if (check_fwstate(pmlmepriv,
 261                     _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true)
 262                         r8712_free_assoc_resources(padapter);
 263                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 264                     (*pold_state == Ndis802_11Infrastructure) ||
 265                     (*pold_state == Ndis802_11IBSS)) {
 266                         /* will clr Linked_state before this function,
 267                          * we must have chked whether issue dis-assoc_cmd or
 268                          * not */
 269                         r8712_ind_disconnect(padapter);
 270                 }
 271                 *pold_state = networktype;
 272                 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
 273                  * WIFI_ADHOC_MASTER_STATE */
 274                 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
 275                               WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE |
 276                               WIFI_AP_STATE);
 277                 switch (networktype) {
 278                 case Ndis802_11IBSS:
 279                         set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 280                         break;
 281                 case Ndis802_11Infrastructure:
 282                         set_fwstate(pmlmepriv, WIFI_STATION_STATE);
 283                         break;
 284                 case Ndis802_11APMode:
 285                         set_fwstate(pmlmepriv, WIFI_AP_STATE);
 286                         break;
 287                 case Ndis802_11AutoUnknown:
 288                 case Ndis802_11InfrastructureMax:
 289                         break;
 290                 }
 291                 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 292         }
 293 }
 294
 295 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
 296 {
 297         unsigned long irqL;
 298         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 299
 300         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 301         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
 302                 r8712_disassoc_cmd(padapter);
 303                 r8712_ind_disconnect(padapter);
 304                 r8712_free_assoc_resources(padapter);
 305         }
 306         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 307         return true;
 308 }
 309
 310 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
 311 {
 312         struct mlme_priv *pmlmepriv = NULL;
 313         unsigned long irqL;
 314         u8 ret = true;
 315
 316         if (padapter == NULL)
 317                 return false;
 318         pmlmepriv = &padapter->mlmepriv;
 319         if (padapter->hw_init_completed == false)
 320                 return false;
 321         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 322         if ((check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) ||
 323             (pmlmepriv->sitesurveyctrl.traffic_busy == true)) {
 324                 /* Scan or linking is in progress, do nothing. */
 325                 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 326         } else {
 327                 r8712_free_network_queue(padapter);
 328                 ret = r8712_sitesurvey_cmd(padapter, NULL);
 329         }
 330         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 331         return ret;
 332 }
 333
 334 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
 335                                 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
 336 {
 337         struct security_priv *psecuritypriv = &padapter->securitypriv;
 338         u8 ret;
 339
 340         psecuritypriv->ndisauthtype = authmode;
 341         if (psecuritypriv->ndisauthtype > 3)
 342                 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
 343         if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
 344                 ret = true;
 345         else
 346                 ret = false;
 347         return ret;
 348 }
 349
 350 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
 351                             struct NDIS_802_11_WEP *wep)
 352 {
 353         u8      bdefaultkey;
 354         u8      btransmitkey;
 355         sint    keyid;
 356         struct security_priv *psecuritypriv = &padapter->securitypriv;
 357
 358         bdefaultkey = (wep->KeyIndex & 0x40000000) > 0 ? false : true;
 359         btransmitkey = (wep->KeyIndex & 0x80000000) > 0 ? true : false;
 360         keyid = wep->KeyIndex & 0x3fffffff;
 361         if (keyid >= WEP_KEYS)
 362                 return false;
 363         switch (wep->KeyLength) {
 364         case 5:
 365                 psecuritypriv->PrivacyAlgrthm = _WEP40_;
 366                 break;
 367         case 13:
 368                 psecuritypriv->PrivacyAlgrthm = _WEP104_;
 369                 break;
 370         default:
 371                 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
 372                 break;
 373         }
 374         memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
 375                 wep->KeyLength);
 376         psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
 377         psecuritypriv->PrivacyKeyIndex = keyid;
 378         if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
 379                 return false;
 380         return _SUCCESS;
 381 }