// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#include <drv_types.h>
u8 rtw_validate_bssid(u8 *bssid)
{
u8 ret = true;
if (is_zero_mac_addr(bssid)
|| is_broadcast_mac_addr(bssid)
|| is_multicast_mac_addr(bssid)
) {
ret = false;
}
return ret;
}
u8 rtw_validate_ssid(struct ndis_802_11_ssid *ssid)
{
u8 ret = true;
if (ssid->ssid_length > 32) {
ret = false;
goto exit;
}
exit:
return ret;
}
u8 rtw_do_join(struct adapter *padapter)
{
struct list_head *plist, *phead;
u8 *pibss = NULL;
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
struct __queue *queue = &(pmlmepriv->scanned_queue);
u8 ret = _SUCCESS;
spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
phead = get_list_head(queue);
plist = get_next(phead);
pmlmepriv->cur_network.join_res = -2;
set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
pmlmepriv->pscanned = plist;
pmlmepriv->to_join = true;
if (list_empty(&queue->queue)) {
spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
/* when set_ssid/set_bssid for rtw_do_join(), but scanning queue is empty */
/* we try to issue sitesurvey firstly */
if (pmlmepriv->LinkDetectInfo.bBusyTraffic == false
|| rtw_to_roam(padapter) > 0
) {
/* submit site_survey_cmd */
ret = rtw_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid, 1, NULL, 0);
if (ret != _SUCCESS)
pmlmepriv->to_join = false;
} else {
pmlmepriv->to_join = false;
ret = _FAIL;
}
goto exit;
} else {
int select_ret;
spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
select_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
if (select_ret == _SUCCESS) {
pmlmepriv->to_join = false;
_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
} else {
if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
/* submit createbss_cmd to change to a ADHOC_MASTER */
/* pmlmepriv->lock has been acquired by caller... */
struct wlan_bssid_ex *pdev_network = &(padapter->registrypriv.dev_network);
pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
pibss = padapter->registrypriv.dev_network.mac_address;
memcpy(&pdev_network->ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
rtw_update_registrypriv_dev_network(padapter);
rtw_generate_random_ibss(pibss);
if (rtw_createbss_cmd(padapter) != _SUCCESS) {
ret = false;
goto exit;
}
pmlmepriv->to_join = false;
} else {
/* can't associate ; reset under-linking */
_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
/* when set_ssid/set_bssid for rtw_do_join(), but there are no desired bss in scanning queue */
/* we try to issue sitesurvey firstly */
if (pmlmepriv->LinkDetectInfo.bBusyTraffic == false
|| rtw_to_roam(padapter) > 0
) {
ret = rtw_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid, 1, NULL, 0);
if (ret != _SUCCESS)
pmlmepriv->to_join = false;
} else {
ret = _FAIL;
pmlmepriv->to_join = false;
}
}
}
}
exit:
return ret;
}
u8 rtw_set_802_11_ssid(struct adapter *padapter, struct ndis_802_11_ssid *ssid)
{
u8 status = _SUCCESS;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct wlan_network *pnetwork = &pmlmepriv->cur_network;
netdev_dbg(padapter->pnetdev, "set ssid [%s] fw_state = 0x%08x\n",
ssid->ssid, get_fwstate(pmlmepriv));
if (padapter->hw_init_completed == false) {
status = _FAIL;
goto exit;
}
spin_lock_bh(&pmlmepriv->lock);
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true)
goto handle_tkip_countermeasure;
else if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
goto release_mlme_lock;
if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true) {
if ((pmlmepriv->assoc_ssid.ssid_length == ssid->ssid_length) &&
(!memcmp(&pmlmepriv->assoc_ssid.ssid, ssid->ssid, ssid->ssid_length))) {
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == false) {
if (rtw_is_same_ibss(padapter, pnetwork) == false) {
/* if in WIFI_ADHOC_MASTER_STATE | WIFI_ADHOC_STATE, create bss or rejoin again */
rtw_disassoc_cmd(padapter, 0, true);
if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
rtw_indicate_disconnect(padapter);
rtw_free_assoc_resources(padapter, 1);
if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) {
_clr_fwstate_(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
}
} else {
goto release_mlme_lock;/* it means driver is in WIFI_ADHOC_MASTER_STATE, we needn't create bss again. */
}
} else {
rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_JOINBSS, 1);
}
} else {
rtw_disassoc_cmd(padapter, 0, true);
if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
rtw_indicate_disconnect(padapter);
rtw_free_assoc_resources(padapter, 1);
if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) {
_clr_fwstate_(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
}
}
}
handle_tkip_countermeasure:
if (rtw_handle_tkip_countermeasure(padapter, __func__) == _FAIL) {
status = _FAIL;
goto release_mlme_lock;
}
if (rtw_validate_ssid(ssid) == false) {
status = _FAIL;
goto release_mlme_lock;
}
memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
pmlmepriv->assoc_by_bssid = false;
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true)
pmlmepriv->to_join = true;
else
status = rtw_do_join(padapter);
release_mlme_lock:
spin_unlock_bh(&pmlmepriv->lock);
exit:
return status;
}
u8 rtw_set_802_11_connect(struct adapter *padapter, u8 *bssid, struct ndis_802_11_ssid *ssid)
{
u8 status = _SUCCESS;
bool bssid_valid = true;
bool ssid_valid = true;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
if (!ssid || rtw_validate_ssid(ssid) == false)
ssid_valid = false;
if (!bssid || rtw_validate_bssid(bssid) == false)
bssid_valid = false;
if (!ssid_valid && !bssid_valid) {
status = _FAIL;
goto exit;
}
if (padapter->hw_init_completed == false) {
status = _FAIL;
goto exit;
}
spin_lock_bh(&pmlmepriv->lock);
netdev_dbg(padapter->pnetdev, FUNC_ADPT_FMT " fw_state = 0x%08x\n",
FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true)
goto handle_tkip_countermeasure;
else if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
goto release_mlme_lock;
handle_tkip_countermeasure:
if (rtw_handle_tkip_countermeasure(padapter, __func__) == _FAIL) {
status = _FAIL;
goto release_mlme_lock;
}
if (ssid && ssid_valid)
memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
else
memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
if (bssid && bssid_valid) {
memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
pmlmepriv->assoc_by_bssid = true;
} else {
pmlmepriv->assoc_by_bssid = false;
}
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true)
pmlmepriv->to_join = true;
else
status = rtw_do_join(padapter);
release_mlme_lock:
spin_unlock_bh(&pmlmepriv->lock);
exit:
return status;
}
u8 rtw_set_802_11_infrastructure_mode(struct adapter *padapter,
enum ndis_802_11_network_infrastructure networktype)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct wlan_network *cur_network = &pmlmepriv->cur_network;
enum ndis_802_11_network_infrastructure *pold_state = &(cur_network->network.infrastructure_mode);
if (*pold_state != networktype) {
if (*pold_state == Ndis802_11APMode) {
/* change to other mode from Ndis802_11APMode */
cur_network->join_res = -1;
stop_ap_mode(padapter);
}
spin_lock_bh(&pmlmepriv->lock);
if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) || (*pold_state == Ndis802_11IBSS))
rtw_disassoc_cmd(padapter, 0, true);
if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true))
rtw_free_assoc_resources(padapter, 1);
if ((*pold_state == Ndis802_11Infrastructure) || (*pold_state == Ndis802_11IBSS)) {
if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
rtw_indicate_disconnect(padapter); /* will clr Linked_state; before this function, we must have checked whether issue dis-assoc_cmd or not */
}
*pold_state = networktype;
_clr_fwstate_(pmlmepriv, ~WIFI_NULL_STATE);
switch (networktype) {
case Ndis802_11IBSS:
set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
break;
case Ndis802_11Infrastructure:
set_fwstate(pmlmepriv, WIFI_STATION_STATE);
break;
case Ndis802_11APMode:
set_fwstate(pmlmepriv, WIFI_AP_STATE);
start_ap_mode(padapter);
/* rtw_indicate_connect(padapter); */
break;
case Ndis802_11AutoUnknown:
case Ndis802_11InfrastructureMax:
break;
}
/* SecClearAllKeys(adapter); */
spin_unlock_bh(&pmlmepriv->lock);
}
return true;
}
u8 rtw_set_802_11_disassociate(struct adapter *padapter)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
spin_lock_bh(&pmlmepriv->lock);
if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
rtw_disassoc_cmd(padapter, 0, true);
rtw_indicate_disconnect(padapter);
/* modify for CONFIG_IEEE80211W, none 11w can use it */
rtw_free_assoc_resources_cmd(padapter);
rtw_pwr_wakeup(padapter);
}
spin_unlock_bh(&pmlmepriv->lock);
return true;
}
u8 rtw_set_802_11_bssid_list_scan(struct adapter *padapter, struct ndis_802_11_ssid *pssid, int ssid_max_num)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 res = true;
if (!padapter) {
res = false;
goto exit;
}
if (padapter->hw_init_completed == false) {
res = false;
goto exit;
}
if ((check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == true) ||
(pmlmepriv->LinkDetectInfo.bBusyTraffic == true)) {
/* Scan or linking is in progress, do nothing. */
res = true;
} else {
if (rtw_is_scan_deny(padapter))
return _SUCCESS;
spin_lock_bh(&pmlmepriv->lock);
res = rtw_sitesurvey_cmd(padapter, pssid, ssid_max_num, NULL, 0);
spin_unlock_bh(&pmlmepriv->lock);
}
exit:
return res;
}
u8 rtw_set_802_11_authentication_mode(struct adapter *padapter, enum ndis_802_11_authentication_mode authmode)
{
struct security_priv *psecuritypriv = &padapter->securitypriv;
int res;
u8 ret;
psecuritypriv->ndisauthtype = authmode;
if (psecuritypriv->ndisauthtype > 3)
psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_8021X;
res = rtw_set_auth(padapter, psecuritypriv);
if (res == _SUCCESS)
ret = true;
else
ret = false;
return ret;
}
u8 rtw_set_802_11_add_wep(struct adapter *padapter, struct ndis_802_11_wep *wep)
{
signed int keyid, res;
struct security_priv *psecuritypriv = &(padapter->securitypriv);
u8 ret = _SUCCESS;
keyid = wep->key_index & 0x3fffffff;
if (keyid >= 4) {
ret = false;
goto exit;
}
switch (wep->key_length) {
case 5:
psecuritypriv->dot11PrivacyAlgrthm = _WEP40_;
break;
case 13:
psecuritypriv->dot11PrivacyAlgrthm = _WEP104_;
break;
default:
psecuritypriv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
break;
}
memcpy(&(psecuritypriv->dot11DefKey[keyid].skey[0]), &(wep->key_material), wep->key_length);
psecuritypriv->dot11DefKeylen[keyid] = wep->key_length;
psecuritypriv->dot11PrivacyKeyIndex = keyid;
res = rtw_set_key(padapter, psecuritypriv, keyid, 1, true);
if (res == _FAIL)
ret = false;
exit:
return ret;
}
/*
* rtw_get_cur_max_rate -
* @adapter: pointer to struct adapter structure
*
* Return 0 or 100Kbps
*/
u16 rtw_get_cur_max_rate(struct adapter *adapter)
{
int i = 0;
u16 rate = 0, max_rate = 0;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct wlan_bssid_ex *pcur_bss = &pmlmepriv->cur_network.network;
struct sta_info *psta = NULL;
u8 short_GI = 0;
if ((check_fwstate(pmlmepriv, _FW_LINKED) != true)
&& (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) != true))
return 0;
psta = rtw_get_stainfo(&adapter->stapriv, get_bssid(pmlmepriv));
if (!psta)
return 0;
short_GI = query_ra_short_GI(psta);
if (is_supported_ht(psta->wireless_mode)) {
max_rate = rtw_mcs_rate(psta->bw_mode == CHANNEL_WIDTH_40 ? 1 : 0,
short_GI,
psta->htpriv.ht_cap.mcs.rx_mask);
} else {
while ((pcur_bss->supported_rates[i] != 0) && (pcur_bss->supported_rates[i] != 0xFF)) {
rate = pcur_bss->supported_rates[i]&0x7F;
if (rate > max_rate)
max_rate = rate;
i++;
}
max_rate = max_rate*10/2;
}
return max_rate;
}
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