diff options
Diffstat (limited to 'drivers/net/wireless/rda/rda_wlan/wlan_assoc.c')
| -rwxr-xr-x | drivers/net/wireless/rda/rda_wlan/wlan_assoc.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/drivers/net/wireless/rda/rda_wlan/wlan_assoc.c b/drivers/net/wireless/rda/rda_wlan/wlan_assoc.c new file mode 100755 index 00000000..714c6c31 --- /dev/null +++ b/drivers/net/wireless/rda/rda_wlan/wlan_assoc.c @@ -0,0 +1,228 @@ +#include "wlan_includes.h" + + +//imode +/* BIT0: 1 -> Security ON 0 -> OFF */ +/* BIT1: 1 -> WEP40 cypher supported 0 -> Not supported */ +/* BIT2: 1 -> WEP104 cypher supported 0 -> Not supported */ +/* BIT3: 1 -> WPA mode supported 0 -> Not supported */ +/* BIT4: 1 -> WPA2 (RSN) supported 0 -> Not supported */ +/* BIT5: 1 -> AES-CCMP cphr supported 0 -> Not supported */ +/* BIT6: 1 -> TKIP cypher supported 0 -> Not supported */ +/* BIT7: 1 -> TSN supported 0 -> Not supported */ + +//authtype +/* BIT0: 1 -> OPEN SYSTEM */ +/* BIT1: 1 -> SHARED KEY */ +/* BIT3: 1 -> WAPI */ +static int assoc_helper_secinfo(wlan_private *priv, + struct bss_descriptor *assoc_bss) +{ + int ret = 0; + + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, "%s <<<\n", __func__); + + /* set imode and key */ + if ( !priv->secinfo.wep_enabled + && !priv->secinfo.WPAenabled && !priv->secinfo.WPA2enabled) { + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, NO SEC\n", __func__); + priv->imode = 0; + } else { + u16 key_len = 0; + + if ( priv->secinfo.wep_enabled + && !priv->secinfo.WPAenabled + && !priv->secinfo.WPA2enabled) { + /* WEP */ + key_len = priv->wep_keys[0].len; + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, WEP, len = %d\n", __func__, key_len * 8); + if (key_len == KEY_LEN_WEP_40) { + priv->imode = BIT0 | BIT1; + } else if (key_len == KEY_LEN_WEP_104) { + priv->imode = BIT0 | BIT2; + } else { + WLAN_ERRP("Invalide WEP Key length %d\n", key_len); + ret = -EINVAL; + goto out; + } + } else if ( !priv->secinfo.wep_enabled + && (priv->secinfo.WPAenabled || + priv->secinfo.WPA2enabled)) { + /* WPA */ + struct enc_key * pkey = NULL; + + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, WPA cp:%x wpa:%d wpa2:%d \n", __func__, priv->secinfo.cipther_type, priv->secinfo.WPAenabled, priv->secinfo.WPA2enabled); + + if ( priv->wpa_mcast_key.len + && (priv->wpa_mcast_key.flags & KEY_INFO_WPA_ENABLED)) + pkey = &priv->wpa_mcast_key; + else if ( priv->wpa_unicast_key.len + && (priv->wpa_unicast_key.flags & KEY_INFO_WPA_ENABLED)) + pkey = &priv->wpa_unicast_key; + + priv->imode = 0; + /* turn on security */ + priv->imode |= (BIT0); + priv->imode &= ~(BIT3 | BIT4); + if (priv->secinfo.WPA2enabled) + priv->imode |= (BIT4); + else if (priv->secinfo.WPAenabled) + priv->imode |= (BIT3); + /* + * we don't know the cipher type by now + * use dot11i_info to decide + * and use CCMP if possible + */ + priv->imode &= ~(BIT5 | BIT6); + if (priv->secinfo.cipther_type & IW_AUTH_CIPHER_CCMP) + priv->imode |= BIT5; + else if (priv->secinfo.cipther_type & IW_AUTH_CIPHER_TKIP) + priv->imode |= BIT6; + } else { + WLAN_ERRP("WEP and WPA/WPA2 enabled simutanously\n"); + ret = -EINVAL; + goto out; + } + } + + /* set authtype */ + if (priv->secinfo.auth_mode & IW_AUTH_ALG_OPEN_SYSTEM + || priv->secinfo.auth_mode & IW_AUTH_ALG_SHARED_KEY){ + + if (priv->secinfo.auth_mode & IW_AUTH_ALG_OPEN_SYSTEM){ + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, Open Auth, KEY_MGMT = %d, AUTH_ALG mode:%x\n", __func__, priv->secinfo.key_mgmt, priv->secinfo.auth_mode); + if (priv->secinfo.key_mgmt == 0x01) + priv->authtype = BIT2; + else + priv->authtype = BIT0; + }else if(priv->secinfo.auth_mode & IW_AUTH_ALG_SHARED_KEY){ + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, Shared-Key Auth AUTH_ALG mode:%x \n", __func__, priv->secinfo.auth_mode); + priv->authtype = BIT1; + } + + if (priv->secinfo.key_mgmt == WAPI_KEY_MGMT_PSK + || priv->secinfo.key_mgmt == WAPI_KEY_MGMT_CERT) + priv->authtype = BIT3; + + }else if (priv->secinfo.auth_mode == IW_AUTH_ALG_WAPI) { + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, Shared-Key Auth\n", __func__); + priv->authtype = IW_AUTH_ALG_WAPI; + }else if (priv->secinfo.auth_mode == IW_AUTH_ALG_LEAP) { + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, LEAP Auth, not supported\n", __func__); + ret = -EINVAL; + goto out; + }else { + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, + "%s, Unknown Auth\n", __func__); + ret = -EINVAL; + goto out; + } + +out: + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, "%s >>> \n", __func__); + return ret; +} + + +void wlan_assocication(wlan_private* priv) +{ + int ret = 0; + struct bss_descriptor *assoc_bss; + + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, "%s >>>\n", __func__); + + assoc_bss = get_bss_desc_from_scanlist(priv, priv->assoc_bssid); + if (assoc_bss == NULL) { + WLAN_ERRP("****fail to find bss in the scan list\n"); + ret = -EINVAL; + goto out; + } + + priv->curbssparams.channel = assoc_bss->channel; + memcpy(priv->curbssparams.bssid, assoc_bss->bssid, ETH_ALEN); + memcpy(priv->curbssparams.ssid, assoc_bss->ssid,IW_ESSID_MAX_SIZE + 1); + + ret = assoc_helper_secinfo(priv, assoc_bss); + if (ret) { + WLAN_ERRP("assoc_helper_secinfo fail, ret = %d\n", ret); + goto out; + } + + //wep so we need retry association + if (priv->imode & 0x06) { + priv->ToggalAssociation = TRUE; + } + + ret = wlan_start_join(priv); + if (ret) { + WLAN_ERRP("wlan_set_ssid fail, ret = %d\n", ret); + wlan_cancel_timer(&priv->AssociationTimeOut); + priv->assoc_ongoing = FALSE; + goto out; + } + + //25S for association + wlan_mod_timer(&priv->AssociationTimeOut, 25000); + + //reassociation + wlan_mod_timer(&priv->ReAssociationTimeOut, 3000); +out: + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, "%s <<< \n", __func__); +} + +void wlan_re_assocication(wlan_private* priv) +{ + int ret = 0; + + ENTER(); +#ifdef WLAN_FORCE_SUSPEND_SUPPORT + if (priv->CardInSuspend == TRUE) { + WLAN_DBGLAP(WLAN_DA_WEXT, WLAN_DL_TRACE, "%s ingnored in ap deep sleep mode.\n", __func__); + return; + } +#endif + if(priv->connect_status == MAC_CONNECTED) + return; + if(priv->reassoc_count++ > 4) + return; + //wep shared key & open turn arount + if (priv->imode & 0x06) { + if (priv->authtype == 0x01) + priv->authtype = 0x02; + else + priv->authtype = 0x01; + } + + ret = wlan_start_join(priv); + if (ret) { + WLAN_ERRP("wlan_set_ssid fail, ret = %d\n", ret); + return; + } + + wlan_mod_timer(&priv->ReAssociationTimeOut, 3000); + LEAVE(); +} + +void wlan_assocication_timeout(wlan_private* priv) +{ + + ENTER(); + + + wlan_cancel_timer(&priv->ReAssociationTimeOut); + + priv->assoc_ongoing = FALSE; + wlan_assoc_power_save(priv); + //restore tx rate + wlan_set_txrate(priv, 0); + + LEAVE(); +} + |