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                                 memcpy(&pdev_network->Ssid,
 101                                         &pmlmepriv->assoc_ssid,
 102                                         sizeof(struct ndis_802_11_ssid));
 103                                 r8712_update_registrypriv_dev_network(padapter);
 104                                 r8712_generate_random_ibss(pibss);
 105                                 if (r8712_createbss_cmd(padapter) != _SUCCESS)
 106                                         return false;
 107                                 pmlmepriv->to_join = false;
 108                         } else {
 109                                 /* can't associate ; reset under-linking */
 110                                 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
 111                                         pmlmepriv->fw_state ^=
 112                                                              _FW_UNDER_LINKING;
 113                                 /* when set_ssid/set_bssid for do_join(), but
 114                                  * there are no desired bss in scanning queue
 115                                  * we try to issue sitesurvey first
 116                                  */
 117                                 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
 118                                         r8712_sitesurvey_cmd(padapter,
 119                                                        &pmlmepriv->assoc_ssid);
 120                         }
 121                 }
 122         }
 123         return true;
 124 }
 125
 126 u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
 127 {
 128         unsigned long irqL;
 129         u8 status = true;
 130         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 131
 132         if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
 133                 status = false;
 134                 return status;
 135         }
 136         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 137         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
 138             _FW_UNDER_LINKING) == true) {
 139                 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 140                 goto _Abort_Set_BSSID;
 141         }
 142         if (check_fwstate(pmlmepriv,
 143             _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true) {
 144                 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
 145                     ETH_ALEN)) {
 146                         if (check_fwstate(pmlmepriv,
 147                             WIFI_STATION_STATE) == false)
 148                                 goto _Abort_Set_BSSID; /* driver is in
 149                                                 * WIFI_ADHOC_MASTER_STATE */
 150                 } else {
 151                         r8712_disassoc_cmd(padapter);
 152                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 153                                 r8712_ind_disconnect(padapter);
 154                         r8712_free_assoc_resources(padapter);
 155                         if ((check_fwstate(pmlmepriv,
 156                              WIFI_ADHOC_MASTER_STATE))) {
 157                                 _clr_fwstate_(pmlmepriv,
 158                                               WIFI_ADHOC_MASTER_STATE);
 159                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 160                         }
 161                 }
 162         }
 163         memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
 164         pmlmepriv->assoc_by_bssid = true;
 165         status = do_join(padapter);
 166         goto done;
 167 _Abort_Set_BSSID:
 168 done:
 169         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 170         return status;
 171 }
 172
 173 void r8712_set_802_11_ssid(struct _adapter *padapter,
 174                            struct ndis_802_11_ssid *ssid)
 175 {
 176         unsigned long irqL;
 177         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 178         struct wlan_network *pnetwork = &pmlmepriv->cur_network;
 179
 180         if (padapter->hw_init_completed == false)
 181                 return;
 182         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 183         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) {
 184                 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 185                 goto _Abort_Set_SSID;
 186         }
 187         if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE)) {
 188                 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
 189                     (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
 190                     ssid->SsidLength))) {
 191                         if ((check_fwstate(pmlmepriv,
 192                              WIFI_STATION_STATE) == false)) {
 193                                 if (r8712_is_same_ibss(padapter,
 194                                      pnetwork) == false) {
 195                                         /* if in WIFI_ADHOC_MASTER_STATE or
 196                                          *  WIFI_ADHOC_STATE, create bss or
 197                                          * rejoin again
 198                                          */
 199                                         r8712_disassoc_cmd(padapter);
 200                                         if (check_fwstate(pmlmepriv,
 201                                             _FW_LINKED) == true)
 202                                                 r8712_ind_disconnect(padapter);
 203                                         r8712_free_assoc_resources(padapter);
 204                                         if (check_fwstate(pmlmepriv,
 205                                              WIFI_ADHOC_MASTER_STATE)) {
 206                                                 _clr_fwstate_(pmlmepriv,
 207                                                     WIFI_ADHOC_MASTER_STATE);
 208                                                 set_fwstate(pmlmepriv,
 209                                                             WIFI_ADHOC_STATE);
 210                                         }
 211                                 } else
 212                                         goto _Abort_Set_SSID; /* driver is in
 213                                                   * WIFI_ADHOC_MASTER_STATE */
 214                         }
 215                 } else {
 216                         r8712_disassoc_cmd(padapter);
 217                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 218                                 r8712_ind_disconnect(padapter);
 219                         r8712_free_assoc_resources(padapter);
 220                         if (check_fwstate(pmlmepriv,
 221                             WIFI_ADHOC_MASTER_STATE) == true) {
 222                                 _clr_fwstate_(pmlmepriv,
 223                                               WIFI_ADHOC_MASTER_STATE);
 224                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 225                         }
 226                 }
 227         }
 228         if (padapter->securitypriv.btkip_countermeasure == true)
 229                 goto _Abort_Set_SSID;
 230         if (validate_ssid(ssid) == false)
 231                 goto _Abort_Set_SSID;
 232         memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
 233         pmlmepriv->assoc_by_bssid = false;
 234         do_join(padapter);
 235         goto done;
 236 _Abort_Set_SSID:
 237 done:
 238         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 239 }
 240
 241 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
 242         enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
 243 {
 244         unsigned long irqL;
 245         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 246         struct wlan_network     *cur_network = &pmlmepriv->cur_network;
 247         enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
 248                                 &(cur_network->network.InfrastructureMode);
 249
 250         if (*pold_state != networktype) {
 251                 spin_lock_irqsave(&pmlmepriv->lock, irqL);
 252                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 253                     (*pold_state == Ndis802_11IBSS))
 254                         r8712_disassoc_cmd(padapter);
 255                 if (check_fwstate(pmlmepriv,
 256                     _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true)
 257                         r8712_free_assoc_resources(padapter);
 258                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 259                     (*pold_state == Ndis802_11Infrastructure) ||
 260                     (*pold_state == Ndis802_11IBSS)) {
 261                         /* will clr Linked_state before this function,
 262                          * we must have checked whether issue dis-assoc_cmd or
 263                          * not */
 264                         r8712_ind_disconnect(padapter);
 265                 }
 266                 *pold_state = networktype;
 267                 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
 268                  * WIFI_ADHOC_MASTER_STATE */
 269                 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
 270                               WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE |
 271                               WIFI_AP_STATE);
 272                 switch (networktype) {
 273                 case Ndis802_11IBSS:
 274                         set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 275                         break;
 276                 case Ndis802_11Infrastructure:
 277                         set_fwstate(pmlmepriv, WIFI_STATION_STATE);
 278                         break;
 279                 case Ndis802_11APMode:
 280                         set_fwstate(pmlmepriv, WIFI_AP_STATE);
 281                         break;
 282                 case Ndis802_11AutoUnknown:
 283                 case Ndis802_11InfrastructureMax:
 284                         break;
 285                 }
 286                 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 287         }
 288 }
 289
 290 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
 291 {
 292         unsigned long irqL;
 293         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 294
 295         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 296         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
 297                 r8712_disassoc_cmd(padapter);
 298                 r8712_ind_disconnect(padapter);
 299                 r8712_free_assoc_resources(padapter);
 300         }
 301         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 302         return true;
 303 }
 304
 305 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
 306 {
 307         struct mlme_priv *pmlmepriv = NULL;
 308         unsigned long irqL;
 309         u8 ret = true;
 310
 311         if (padapter == NULL)
 312                 return false;
 313         pmlmepriv = &padapter->mlmepriv;
 314         if (padapter->hw_init_completed == false)
 315                 return false;
 316         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 317         if ((check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) ||
 318             (pmlmepriv->sitesurveyctrl.traffic_busy == true)) {
 319                 /* Scan or linking is in progress, do nothing. */
 320                 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 321         } else {
 322                 r8712_free_network_queue(padapter);
 323                 ret = r8712_sitesurvey_cmd(padapter, NULL);
 324         }
 325         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 326         return ret;
 327 }
 328
 329 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
 330                                 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
 331 {
 332         struct security_priv *psecuritypriv = &padapter->securitypriv;
 333         u8 ret;
 334
 335         psecuritypriv->ndisauthtype = authmode;
 336         if (psecuritypriv->ndisauthtype > 3)
 337                 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
 338         if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
 339                 ret = true;
 340         else
 341                 ret = false;
 342         return ret;
 343 }
 344
 345 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
 346                             struct NDIS_802_11_WEP *wep)
 347 {
 348         u8      bdefaultkey;
 349         u8      btransmitkey;
 350         sint    keyid;
 351         struct security_priv *psecuritypriv = &padapter->securitypriv;
 352
 353         bdefaultkey = (wep->KeyIndex & 0x40000000) > 0 ? false : true;
 354         btransmitkey = (wep->KeyIndex & 0x80000000) > 0 ? true : false;
 355         keyid = wep->KeyIndex & 0x3fffffff;
 356         if (keyid >= WEP_KEYS)
 357                 return false;
 358         switch (wep->KeyLength) {
 359         case 5:
 360                 psecuritypriv->PrivacyAlgrthm = _WEP40_;
 361                 break;
 362         case 13:
 363                 psecuritypriv->PrivacyAlgrthm = _WEP104_;
 364                 break;
 365         default:
 366                 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
 367                 break;
 368         }
 369         memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
 370                 wep->KeyLength);
 371         psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
 372         psecuritypriv->PrivacyKeyIndex = keyid;
 373         if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
 374                 return false;
 375         return _SUCCESS;
 376 }