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
  38 static u8 validate_ssid(struct ndis_802_11_ssid *ssid)
  39 {
  40         u8 i;
  41
  42         if (ssid->SsidLength > 32)
  43                 return false;
  44         for (i = 0; i < ssid->SsidLength; i++) {
  45                 /* wifi, printable ascii code must be supported */
  46                 if (!((ssid->Ssid[i] >= 0x20) && (ssid->Ssid[i] <= 0x7e)))
  47                         return false;
  48         }
  49         return true;
  50 }
  51
  52 static u8 do_join(struct _adapter *padapter)
  53 {
  54         struct list_head *plist, *phead;
  55         u8 *pibss = NULL;
  56         struct  mlme_priv       *pmlmepriv = &(padapter->mlmepriv);
  57         struct  __queue *queue  = &(pmlmepriv->scanned_queue);
  58
  59         phead = &queue->queue;
  60         plist = phead->next;
  61         pmlmepriv->cur_network.join_res = -2;
  62         pmlmepriv->fw_state |= _FW_UNDER_LINKING;
  63         pmlmepriv->pscanned = plist;
  64         pmlmepriv->to_join = true;
  65
  66         /* adhoc mode will start with an empty queue, but skip checking */
  67         if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
  68             list_empty(&queue->queue)) {
  69                 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
  70                         pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
  71                 /* when set_ssid/set_bssid for do_join(), but scanning queue
  72                  * is empty we try to issue sitesurvey firstly
  73                  */
  74                 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
  75                         r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid);
  76                 return true;
  77         } else {
  78                 int ret;
  79
  80                 ret = r8712_select_and_join_from_scan(pmlmepriv);
  81                 if (ret == _SUCCESS)
  82                         mod_timer(&pmlmepriv->assoc_timer,
  83                                   jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
  84                 else {
  85                         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
  86                                 /* submit r8712_createbss_cmd to change to an
  87                                  * ADHOC_MASTER pmlmepriv->lock has been
  88                                  * acquired by caller...
  89                                  */
  90                                 struct wlan_bssid_ex *pdev_network =
  91                                         &(padapter->registrypriv.dev_network);
  92                                 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
  93                                 pibss = padapter->registrypriv.dev_network.
  94                                         MacAddress;
  95                                 memcpy(&pdev_network->Ssid,
  96                                         &pmlmepriv->assoc_ssid,
  97                                         sizeof(struct ndis_802_11_ssid));
  98                                 r8712_update_registrypriv_dev_network(padapter);
  99                                 r8712_generate_random_ibss(pibss);
 100                                 if (r8712_createbss_cmd(padapter) != _SUCCESS)
 101                                         return false;
 102                                 pmlmepriv->to_join = false;
 103                         } else {
 104                                 /* can't associate ; reset under-linking */
 105                                 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
 106                                         pmlmepriv->fw_state ^=
 107                                                              _FW_UNDER_LINKING;
 108                                 /* when set_ssid/set_bssid for do_join(), but
 109                                  * there are no desired bss in scanning queue
 110                                  * we try to issue sitesurvey first
 111                                  */
 112                                 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
 113                                         r8712_sitesurvey_cmd(padapter,
 114                                                        &pmlmepriv->assoc_ssid);
 115                         }
 116                 }
 117         }
 118         return true;
 119 }
 120
 121 u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
 122 {
 123         unsigned long irqL;
 124         u8 status = true;
 125         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 126
 127         if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
 128                 status = false;
 129                 return status;
 130         }
 131         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 132         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
 133             _FW_UNDER_LINKING)) {
 134                 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 135                 goto _Abort_Set_BSSID;
 136         }
 137         if (check_fwstate(pmlmepriv,
 138             _FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
 139                 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
 140                     ETH_ALEN)) {
 141                         if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE))
 142                                 goto _Abort_Set_BSSID; /* driver is in
 143                                                 * WIFI_ADHOC_MASTER_STATE
 144                                                 */
 145                 } else {
 146                         r8712_disassoc_cmd(padapter);
 147                         if (check_fwstate(pmlmepriv, _FW_LINKED))
 148                                 r8712_ind_disconnect(padapter);
 149                         r8712_free_assoc_resources(padapter);
 150                         if ((check_fwstate(pmlmepriv,
 151                              WIFI_ADHOC_MASTER_STATE))) {
 152                                 _clr_fwstate_(pmlmepriv,
 153                                               WIFI_ADHOC_MASTER_STATE);
 154                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 155                         }
 156                 }
 157         }
 158         memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
 159         pmlmepriv->assoc_by_bssid = true;
 160         status = do_join(padapter);
 161         goto done;
 162 _Abort_Set_BSSID:
 163 done:
 164         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 165         return status;
 166 }
 167
 168 void r8712_set_802_11_ssid(struct _adapter *padapter,
 169                            struct ndis_802_11_ssid *ssid)
 170 {
 171         unsigned long irqL;
 172         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 173         struct wlan_network *pnetwork = &pmlmepriv->cur_network;
 174
 175         if (!padapter->hw_init_completed)
 176                 return;
 177         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 178         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING)) {
 179                 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 180                 goto _Abort_Set_SSID;
 181         }
 182         if (check_fwstate(pmlmepriv, _FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
 183                 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
 184                     (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
 185                     ssid->SsidLength))) {
 186                         if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
 187                                 if (!r8712_is_same_ibss(padapter,
 188                                      pnetwork)) {
 189                                         /* if in WIFI_ADHOC_MASTER_STATE or
 190                                          *  WIFI_ADHOC_STATE, create bss or
 191                                          * rejoin again
 192                                          */
 193                                         r8712_disassoc_cmd(padapter);
 194                                         if (check_fwstate(pmlmepriv,
 195                                             _FW_LINKED))
 196                                                 r8712_ind_disconnect(padapter);
 197                                         r8712_free_assoc_resources(padapter);
 198                                         if (check_fwstate(pmlmepriv,
 199                                              WIFI_ADHOC_MASTER_STATE)) {
 200                                                 _clr_fwstate_(pmlmepriv,
 201                                                     WIFI_ADHOC_MASTER_STATE);
 202                                                 set_fwstate(pmlmepriv,
 203                                                             WIFI_ADHOC_STATE);
 204                                         }
 205                                 } else {
 206                                         goto _Abort_Set_SSID; /* driver is in
 207                                                 * WIFI_ADHOC_MASTER_STATE
 208                                                 */
 209                                 }
 210                         }
 211                 } else {
 212                         r8712_disassoc_cmd(padapter);
 213                         if (check_fwstate(pmlmepriv, _FW_LINKED))
 214                                 r8712_ind_disconnect(padapter);
 215                         r8712_free_assoc_resources(padapter);
 216                         if (check_fwstate(pmlmepriv,
 217                             WIFI_ADHOC_MASTER_STATE)) {
 218                                 _clr_fwstate_(pmlmepriv,
 219                                               WIFI_ADHOC_MASTER_STATE);
 220                                 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 221                         }
 222                 }
 223         }
 224         if (padapter->securitypriv.btkip_countermeasure)
 225                 goto _Abort_Set_SSID;
 226         if (!validate_ssid(ssid))
 227                 goto _Abort_Set_SSID;
 228         memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
 229         pmlmepriv->assoc_by_bssid = false;
 230         do_join(padapter);
 231         goto done;
 232 _Abort_Set_SSID:
 233 done:
 234         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 235 }
 236
 237 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
 238         enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
 239 {
 240         unsigned long irqL;
 241         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 242         struct wlan_network     *cur_network = &pmlmepriv->cur_network;
 243         enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
 244                                 &(cur_network->network.InfrastructureMode);
 245
 246         if (*pold_state != networktype) {
 247                 spin_lock_irqsave(&pmlmepriv->lock, irqL);
 248                 if (check_fwstate(pmlmepriv, _FW_LINKED) ||
 249                     (*pold_state == Ndis802_11IBSS))
 250                         r8712_disassoc_cmd(padapter);
 251                 if (check_fwstate(pmlmepriv,
 252                     _FW_LINKED | WIFI_ADHOC_MASTER_STATE))
 253                         r8712_free_assoc_resources(padapter);
 254                 if (check_fwstate(pmlmepriv, _FW_LINKED) ||
 255                     (*pold_state == Ndis802_11Infrastructure) ||
 256                     (*pold_state == Ndis802_11IBSS)) {
 257                         /* will clr Linked_state before this function,
 258                          * we must have checked whether issue dis-assoc_cmd or
 259                          * not
 260                          */
 261                         r8712_ind_disconnect(padapter);
 262                 }
 263                 *pold_state = networktype;
 264                 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
 265                  * WIFI_ADHOC_MASTER_STATE
 266                  */
 267                 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
 268                               WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE);
 269                 switch (networktype) {
 270                 case Ndis802_11IBSS:
 271                         set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
 272                         break;
 273                 case Ndis802_11Infrastructure:
 274                         set_fwstate(pmlmepriv, WIFI_STATION_STATE);
 275                         break;
 276                 case Ndis802_11APMode:
 277                         set_fwstate(pmlmepriv, WIFI_AP_STATE);
 278                         break;
 279                 case Ndis802_11AutoUnknown:
 280                 case Ndis802_11InfrastructureMax:
 281                         break;
 282                 }
 283                 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 284         }
 285 }
 286
 287 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
 288 {
 289         unsigned long irqL;
 290         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 291
 292         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 293         if (check_fwstate(pmlmepriv, _FW_LINKED)) {
 294                 r8712_disassoc_cmd(padapter);
 295                 r8712_ind_disconnect(padapter);
 296                 r8712_free_assoc_resources(padapter);
 297         }
 298         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 299         return true;
 300 }
 301
 302 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
 303 {
 304         struct mlme_priv *pmlmepriv = NULL;
 305         unsigned long irqL;
 306         u8 ret = true;
 307
 308         if (!padapter)
 309                 return false;
 310         pmlmepriv = &padapter->mlmepriv;
 311         if (!padapter->hw_init_completed)
 312                 return false;
 313         spin_lock_irqsave(&pmlmepriv->lock, irqL);
 314         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING) ||
 315             pmlmepriv->sitesurveyctrl.traffic_busy) {
 316                 /* Scan or linking is in progress, do nothing. */
 317                 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 318         } else {
 319                 r8712_free_network_queue(padapter);
 320                 ret = r8712_sitesurvey_cmd(padapter, NULL);
 321         }
 322         spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 323         return ret;
 324 }
 325
 326 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
 327                                 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
 328 {
 329         struct security_priv *psecuritypriv = &padapter->securitypriv;
 330         u8 ret;
 331
 332         psecuritypriv->ndisauthtype = authmode;
 333         if (psecuritypriv->ndisauthtype > 3)
 334                 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
 335         if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
 336                 ret = true;
 337         else
 338                 ret = false;
 339         return ret;
 340 }
 341
 342 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
 343                             struct NDIS_802_11_WEP *wep)
 344 {
 345         sint    keyid;
 346         struct security_priv *psecuritypriv = &padapter->securitypriv;
 347
 348         keyid = wep->KeyIndex & 0x3fffffff;
 349         if (keyid >= WEP_KEYS)
 350                 return false;
 351         switch (wep->KeyLength) {
 352         case 5:
 353                 psecuritypriv->PrivacyAlgrthm = _WEP40_;
 354                 break;
 355         case 13:
 356                 psecuritypriv->PrivacyAlgrthm = _WEP104_;
 357                 break;
 358         default:
 359                 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
 360                 break;
 361         }
 362         memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
 363                 wep->KeyLength);
 364         psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
 365         psecuritypriv->PrivacyKeyIndex = keyid;
 366         if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
 367                 return false;
 368         return _SUCCESS;
 369 }