staging: r8712u: Add the new driver to the mainline kernel

This code is for a completely new version of the Realtek 8192 USB devices
such as the D-Link DWA-130. The Realtek code, which was originally for
Linux, Windows XP and Windows CE, has been stripped of all code not needed
for Linux. In addition, only one additional configuration variable, which
enables AP mode, remains.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Tested-by: Frederic Leroy <fredo@starox.org>

1 files changed, 170 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
new file mode 100644
index 000000000000..abf96c14df93
--- /dev/null
+++ b/drivers/staging/rtl8712/mlme_linux.c
@@ -0,0 +1,170 @@
+/******************************************************************************
+ * mlme_linux.c
+ *
+ * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
+ * Linux device driver for RTL8192SU
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * Modifications for inclusion into the Linux staging tree are
+ * Copyright(c) 2010 Larry Finger. All rights reserved.
+ *
+ * Contact information:
+ * WLAN FAE <wlanfae@realtek.com>.
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ ******************************************************************************/
+
+#define _MLME_OSDEP_C_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "mlme_osdep.h"
+
+static void sitesurvey_ctrl_handler(void *FunctionContext)
+{
+	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+
+	_r8712_sitesurvey_ctrl_handler(adapter);
+	_set_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
+		   3000);
+}
+
+static void join_timeout_handler (void *FunctionContext)
+{
+	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	_r8712_join_timeout_handler(adapter);
+}
+
+static void _scan_timeout_handler (void *FunctionContext)
+{
+	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	r8712_scan_timeout_handler(adapter);
+}
+
+static void dhcp_timeout_handler (void *FunctionContext)
+{
+	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	_r8712_dhcp_timeout_handler(adapter);
+}
+
+static void wdg_timeout_handler (void *FunctionContext)
+{
+	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+
+	_r8712_wdg_timeout_handler(adapter);
+
+	_set_timer(&adapter->mlmepriv.wdg_timer, 2000);
+}
+
+void r8712_init_mlme_timer(struct _adapter *padapter)
+{
+	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
+
+	_init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev,
+		    join_timeout_handler, (pmlmepriv->nic_hdl));
+	_init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer),
+		    padapter->pnetdev, sitesurvey_ctrl_handler,
+		    (u8 *)(pmlmepriv->nic_hdl));
+	_init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev,
+		    _scan_timeout_handler, (pmlmepriv->nic_hdl));
+	_init_timer(&(pmlmepriv->dhcp_timer), padapter->pnetdev,
+		    dhcp_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
+	_init_timer(&(pmlmepriv->wdg_timer), padapter->pnetdev,
+		    wdg_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
+}
+
+void r8712_os_indicate_connect(struct _adapter *adapter)
+{
+	r8712_indicate_wx_assoc_event(adapter);
+	netif_carrier_on(adapter->pnetdev);
+}
+
+static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
+void r8712_os_indicate_disconnect(struct _adapter *adapter)
+{
+	u8 backupPMKIDIndex = 0;
+	u8 backupTKIPCountermeasure = 0x00;
+
+	r8712_indicate_wx_disassoc_event(adapter);
+	netif_carrier_off(adapter->pnetdev);
+	if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
+		/* We have to backup the PMK information for WiFi PMK Caching
+		 * test item. Backup the btkip_countermeasure information.
+		 * When the countermeasure is trigger, the driver have to
+		 * disconnect with AP for 60 seconds.
+		 */
+
+		memset(&backupPMKIDList[0], 0x00, sizeof(
+			struct RT_PMKID_LIST) *	NUM_PMKID_CACHE);
+		memcpy(&backupPMKIDList[0], &adapter->securitypriv.
+			PMKIDList[0], sizeof(struct RT_PMKID_LIST) *
+			NUM_PMKID_CACHE);
+		backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
+		backupTKIPCountermeasure = adapter->securitypriv.
+					   btkip_countermeasure;
+		memset((unsigned char *)&adapter->securitypriv, 0,
+			 sizeof(struct security_priv));
+		_init_timer(&(adapter->securitypriv.tkip_timer),
+			    adapter->pnetdev, r8712_use_tkipkey_handler,
+			    adapter);
+		/* Restore the PMK information to securitypriv structure
+		 * for the following connection. */
+		memcpy(&adapter->securitypriv.PMKIDList[0],
+			&backupPMKIDList[0],
+			sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
+		adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
+		adapter->securitypriv.btkip_countermeasure =
+					 backupTKIPCountermeasure;
+	} else { /*reset values in securitypriv*/
+		struct security_priv *psec_priv = &adapter->securitypriv;
+
+		psec_priv->AuthAlgrthm = 0; /*open system*/
+		psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
+		psec_priv->PrivacyKeyIndex = 0;
+		psec_priv->XGrpPrivacy = _NO_PRIVACY_;
+		psec_priv->XGrpKeyid = 1;
+		psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
+		psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
+		psec_priv->wps_phase = false;
+	}
+}
+
+void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
+{
+	uint len;
+	u8 *buff, *p, i;
+	union iwreq_data wrqu;
+
+	buff = NULL;
+	if (authmode == _WPA_IE_ID_) {
+		buff = _malloc(IW_CUSTOM_MAX);
+		if (buff == NULL)
+			return;
+		memset(buff, 0, IW_CUSTOM_MAX);
+		p = buff;
+		p += sprintf(p, "ASSOCINFO(ReqIEs=");
+		len = sec_ie[1] + 2;
+		len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
+		for (i = 0; i < len; i++)
+			p += sprintf(p, "%02x", sec_ie[i]);
+		p += sprintf(p, ")");
+		memset(&wrqu, 0, sizeof(wrqu));
+		wrqu.data.length = p-buff;
+		wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
+				   wrqu.data.length : IW_CUSTOM_MAX;
+		wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
+		kfree(buff);
+	}
+}