LXR linux/drivers/staging/rtl8712/rtl871x_ioctl

   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
  44static 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
  58static 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
 128u8 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:
 173done:
 174        spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 175        return status;
 176}
 177
 178void 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:
 242done:
 243        spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
 244}
 245
 246void 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
 295u8 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
 310u8 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
 334u8 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
 350u8 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}
 382