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 (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
 135                 status = false;
 136                 return status;
 137         }
 138         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 139         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
 140             _FW_UNDER_LINKING) == true) {
 141                 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 142                 goto _Abort_Set_BSSID;
 143         }
 144         if (check_fwstate(pmlmepriv,
 145             _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true) {
 146                 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
 147                     ETH_ALEN)) {
 148                         if (check_fwstate(pmlmepriv,
 149                             WIFI_STATION_STATE) == false)
 150                                 goto _Abort_Set_BSSID; /* driver is in
 151                                                 * WIFI_ADHOC_MASTER_STATE */
 152                 } else {
 153                         r8712_disassoc_cmd(padapter);
 154                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 155                                 r8712_ind_disconnect(padapter);
 156                         r8712_free_assoc_resources(padapter);
 157                         if ((check_fwstate(pmlmepriv,
 158                              WIFI_ADHOC_MASTER_STATE))) {
 159                                 _clr_fwstate_(pmlmepriv,
 160                                               WIFI_ADHOC_MASTER_STATE);
 161                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 162                         }
 163                 }
 164         }
 165         memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
 166         pmlmepriv->assoc_by_bssid = true;
 167         status = do_join(padapter);
 168         goto done;
 169 _Abort_Set_BSSID:
 170 done:
 171         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 172         return status;
 173 }
 174
 175 void r8712_set_802_11_ssid(struct _adapter *padapter,
 176                            struct ndis_802_11_ssid *ssid)
 177 {
 178         unsigned long irqL;
 179         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 180         struct wlan_network *pnetwork = &pmlmepriv->cur_network;
 181
 182         if (padapter->hw_init_completed == false)
 183                 return;
 184         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 185         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) {
 186                 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 187                 goto _Abort_Set_SSID;
 188         }
 189         if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE)) {
 190                 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
 191                     (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
 192                     ssid->SsidLength))) {
 193                         if ((check_fwstate(pmlmepriv,
 194                              WIFI_STATION_STATE) == false)) {
 195                                 if (r8712_is_same_ibss(padapter,
 196                                      pnetwork) == false) {
 197                                         /* if in WIFI_ADHOC_MASTER_STATE or
 198                                          *  WIFI_ADHOC_STATE, create bss or
 199                                          * rejoin again
 200                                          */
 201                                         r8712_disassoc_cmd(padapter);
 202                                         if (check_fwstate(pmlmepriv,
 203                                             _FW_LINKED) == true)
 204                                                 r8712_ind_disconnect(padapter);
 205                                         r8712_free_assoc_resources(padapter);
 206                                         if (check_fwstate(pmlmepriv,
 207                                              WIFI_ADHOC_MASTER_STATE)) {
 208                                                 _clr_fwstate_(pmlmepriv,
 209                                                     WIFI_ADHOC_MASTER_STATE);
 210                                                 set_fwstate(pmlmepriv,
 211                                                             WIFI_ADHOC_STATE);
 212                                         }
 213                                 } else
 214                                         goto _Abort_Set_SSID; /* driver is in
 215                                                   * WIFI_ADHOC_MASTER_STATE */
 216                         }
 217                 } else {
 218                         r8712_disassoc_cmd(padapter);
 219                         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 220                                 r8712_ind_disconnect(padapter);
 221                         r8712_free_assoc_resources(padapter);
 222                         if (check_fwstate(pmlmepriv,
 223                             WIFI_ADHOC_MASTER_STATE) == true) {
 224                                 _clr_fwstate_(pmlmepriv,
 225                                               WIFI_ADHOC_MASTER_STATE);
 226                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 227                         }
 228                 }
 229         }
 230         if (padapter->securitypriv.btkip_countermeasure == true)
 231                 goto _Abort_Set_SSID;
 232         if (validate_ssid(ssid) == false)
 233                 goto _Abort_Set_SSID;
 234         memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
 235         pmlmepriv->assoc_by_bssid = false;
 236         do_join(padapter);
 237         goto done;
 238 _Abort_Set_SSID:
 239 done:
 240         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 241 }
 242
 243 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
 244         enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
 245 {
 246         unsigned long irqL;
 247         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 248         struct wlan_network     *cur_network = &pmlmepriv->cur_network;
 249         enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
 250                                 &(cur_network->network.InfrastructureMode);
 251
 252         if (*pold_state != networktype) {
 253                 spin_lock_irqsave(&pmlmepriv->lock, irqL);
 254                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 255                     (*pold_state == Ndis802_11IBSS))
 256                         r8712_disassoc_cmd(padapter);
 257                 if (check_fwstate(pmlmepriv,
 258                     _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true)
 259                         r8712_free_assoc_resources(padapter);
 260                 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
 261                     (*pold_state == Ndis802_11Infrastructure) ||
 262                     (*pold_state == Ndis802_11IBSS)) {
 263                         /* will clr Linked_state before this function,
 264                          * we must have checked whether issue dis-assoc_cmd or
 265                          * not */
 266                         r8712_ind_disconnect(padapter);
 267                 }
 268                 *pold_state = networktype;
 269                 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
 270                  * WIFI_ADHOC_MASTER_STATE */
 271                 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
 272                               WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE |
 273                               WIFI_AP_STATE);
 274                 switch (networktype) {
 275                 case Ndis802_11IBSS:
 276                         set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 277                         break;
 278                 case Ndis802_11Infrastructure:
 279                         set_fwstate(pmlmepriv, WIFI_STATION_STATE);
 280                         break;
 281                 case Ndis802_11APMode:
 282                         set_fwstate(pmlmepriv, WIFI_AP_STATE);
 283                         break;
 284                 case Ndis802_11AutoUnknown:
 285                 case Ndis802_11InfrastructureMax:
 286                         break;
 287                 }
 288                 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 289         }
 290 }
 291
 292 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
 293 {
 294         unsigned long irqL;
 295         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 296
 297         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 298         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
 299                 r8712_disassoc_cmd(padapter);
 300                 r8712_ind_disconnect(padapter);
 301                 r8712_free_assoc_resources(padapter);
 302         }
 303         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 304         return true;
 305 }
 306
 307 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
 308 {
 309         struct mlme_priv *pmlmepriv = NULL;
 310         unsigned long irqL;
 311         u8 ret = true;
 312
 313         if (padapter == NULL)
 314                 return false;
 315         pmlmepriv = &padapter->mlmepriv;
 316         if (padapter->hw_init_completed == false)
 317                 return false;
 318         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 319         if ((check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) ||
 320             (pmlmepriv->sitesurveyctrl.traffic_busy == true)) {
 321                 /* Scan or linking is in progress, do nothing. */
 322                 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 323         } else {
 324                 r8712_free_network_queue(padapter);
 325                 ret = r8712_sitesurvey_cmd(padapter, NULL);
 326         }
 327         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 328         return ret;
 329 }
 330
 331 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
 332                                 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
 333 {
 334         struct security_priv *psecuritypriv = &padapter->securitypriv;
 335         u8 ret;
 336
 337         psecuritypriv->ndisauthtype = authmode;
 338         if (psecuritypriv->ndisauthtype > 3)
 339                 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
 340         if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
 341                 ret = true;
 342         else
 343                 ret = false;
 344         return ret;
 345 }
 346
 347 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
 348                             struct NDIS_802_11_WEP *wep)
 349 {
 350         u8      bdefaultkey;
 351         u8      btransmitkey;
 352         sint    keyid;
 353         struct security_priv *psecuritypriv = &padapter->securitypriv;
 354
 355         bdefaultkey = (wep->KeyIndex & 0x40000000) > 0 ? false : true;
 356         btransmitkey = (wep->KeyIndex & 0x80000000) > 0 ? true : false;
 357         keyid = wep->KeyIndex & 0x3fffffff;
 358         if (keyid >= WEP_KEYS)
 359                 return false;
 360         switch (wep->KeyLength) {
 361         case 5:
 362                 psecuritypriv->PrivacyAlgrthm = _WEP40_;
 363                 break;
 364         case 13:
 365                 psecuritypriv->PrivacyAlgrthm = _WEP104_;
 366                 break;
 367         default:
 368                 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
 369                 break;
 370         }
 371         memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
 372                 wep->KeyLength);
 373         psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
 374         psecuritypriv->PrivacyKeyIndex = keyid;
 375         if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
 376                 return false;
 377         return _SUCCESS;
 378 }