drivers/staging/rtl8188eu/os_dep/mlme_linux.c

// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 ******************************************************************************/

#define _MLME_OSDEP_C_

#include <osdep_service.h>
#include <drv_types.h>
#include <mlme_osdep.h>

void rtw_init_mlme_timer(struct adapter *padapter)
{
	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

	timer_setup(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler, 0);
	timer_setup(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler, 0);
	timer_setup(&pmlmepriv->dynamic_chk_timer,
		    rtw_dynamic_check_timer_handlder, 0);
}

void rtw_os_indicate_connect(struct adapter *adapter)
{
	rtw_indicate_wx_assoc_event(adapter);
	netif_carrier_on(adapter->pnetdev);
}

static struct rt_pmkid_list backup_pmkid[NUM_PMKID_CACHE];

void rtw_reset_securitypriv(struct adapter *adapter)
{
	u8 backup_index;
	u8 backup_counter;
	u32 backup_time;
	struct security_priv *psec_priv = &adapter->securitypriv;

	if (psec_priv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
		/* 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.
		 */
		memcpy(backup_pmkid, psec_priv->PMKIDList,
		       sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
		backup_index = psec_priv->PMKIDIndex;
		backup_counter = psec_priv->btkip_countermeasure;
		backup_time = psec_priv->btkip_countermeasure_time;

		memset(psec_priv, 0, sizeof(*psec_priv));

		/* Restore the PMK information to securitypriv structure
		 * for the following connection.
		 */
		memcpy(psec_priv->PMKIDList, backup_pmkid,
		       sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
		psec_priv->PMKIDIndex = backup_index;
		psec_priv->btkip_countermeasure = backup_counter;
		psec_priv->btkip_countermeasure_time = backup_time;
		psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
		psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
	} else {
		/* reset values in securitypriv */
		psec_priv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open;
		psec_priv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
		psec_priv->dot11PrivacyKeyIndex = 0;
		psec_priv->dot118021XGrpPrivacy = _NO_PRIVACY_;
		psec_priv->dot118021XGrpKeyid = 1;
		psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
		psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
	}
}

void rtw_os_indicate_disconnect(struct adapter *adapter)
{
	/* Do it first for tx broadcast pkt after disconnection issue! */
	netif_carrier_off(adapter->pnetdev);
	rtw_indicate_wx_disassoc_event(adapter);
	rtw_reset_securitypriv(adapter);
}

void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
{
	uint len;
	u8 *buff, *p, i;
	union iwreq_data wrqu;

	RT_TRACE(_module_mlme_osdep_c_, _drv_info_,
		 ("+%s, authmode=%d\n", __func__, authmode));
	buff = NULL;
	if (authmode == _WPA_IE_ID_) {
		RT_TRACE(_module_mlme_osdep_c_, _drv_info_,
			 ("%s, authmode=%d\n", __func__, authmode));
		buff = rtw_malloc(IW_CUSTOM_MAX);
		if (!buff)
			return;
		memset(buff, 0, IW_CUSTOM_MAX);
		p = buff;
		p += sprintf(p, "ASSOCINFO(ReqIEs =");
		len = sec_ie[1] + 2;
		len =  min_t(uint, 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 = min_t(__u16, p - buff, IW_CUSTOM_MAX);
		wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
		kfree(buff);
	}
}

void init_addba_retry_timer(struct adapter *padapter, struct sta_info *psta)
{
	timer_setup(&psta->addba_retry_timer, addba_timer_hdl, 0);
}

void init_mlme_ext_timer(struct adapter *padapter)
{
	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;

	timer_setup(&pmlmeext->survey_timer, survey_timer_hdl, 0);
	timer_setup(&pmlmeext->link_timer, link_timer_hdl, 0);
}

#ifdef CONFIG_88EU_AP_MODE

void rtw_indicate_sta_assoc_event(struct adapter *padapter, struct sta_info *psta)
{
	union iwreq_data wrqu;
	struct sta_priv *pstapriv = &padapter->stapriv;

	if (!psta)
		return;

	if (psta->aid > NUM_STA)
		return;

	if (pstapriv->sta_aid[psta->aid - 1] != psta)
		return;

	wrqu.addr.sa_family = ARPHRD_ETHER;

	memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN);

	DBG_88E("+%s\n", __func__);

	wireless_send_event(padapter->pnetdev, IWEVREGISTERED, &wrqu, NULL);
}

void rtw_indicate_sta_disassoc_event(struct adapter *padapter, struct sta_info *psta)
{
	union iwreq_data wrqu;
	struct sta_priv *pstapriv = &padapter->stapriv;

	if (!psta)
		return;

	if (psta->aid > NUM_STA)
		return;

	if (pstapriv->sta_aid[psta->aid - 1] != psta)
		return;

	wrqu.addr.sa_family = ARPHRD_ETHER;

	memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN);

	DBG_88E("+%s\n", __func__);

	wireless_send_event(padapter->pnetdev, IWEVEXPIRED, &wrqu, NULL);
}

#endif