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gnab-rtl8812au/core/rtw_tdls.c

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2013-11-19 20:24:49 +00:00
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* 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
*
*
******************************************************************************/
#define _RTW_TDLS_C_
#include <drv_types.h>
#ifdef CONFIG_TDLS
extern unsigned char MCS_rate_2R[16];
extern unsigned char MCS_rate_1R[16];
extern void process_wmmps_data(_adapter *padapter, union recv_frame *precv_frame);
extern s32 rtw_dump_xframe(_adapter *padapter, struct xmit_frame *pxmitframe);
void rtw_reset_tdls_info(_adapter* padapter)
{
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
ptdlsinfo->ap_prohibited = _FALSE;
ptdlsinfo->setup_state = TDLS_STATE_NONE;
ptdlsinfo->sta_cnt = 0;
ptdlsinfo->sta_maximum = _FALSE;
ptdlsinfo->macid_index= 6;
ptdlsinfo->clear_cam= 0;
ptdlsinfo->ch_sensing = 0;
ptdlsinfo->cur_channel = 0;
ptdlsinfo->candidate_ch = 1; //when inplement channel switching, default candidate channel is 1
ptdlsinfo->watchdog_count = 0;
ptdlsinfo->dev_discovered = 0;
#ifdef CONFIG_WFD
ptdlsinfo->wfd_info = &padapter->wfd_info;
#endif //CONFIG_WFD
}
int rtw_init_tdls_info(_adapter* padapter)
{
int res = _SUCCESS;
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
ptdlsinfo->enable = 1;
rtw_reset_tdls_info(padapter);
_rtw_spinlock_init(&ptdlsinfo->cmd_lock);
_rtw_spinlock_init(&ptdlsinfo->hdl_lock);
return res;
}
void rtw_free_tdls_info(struct tdls_info *ptdlsinfo)
{
_rtw_spinlock_free(&ptdlsinfo->cmd_lock);
_rtw_spinlock_free(&ptdlsinfo->hdl_lock);
_rtw_memset(ptdlsinfo, 0, sizeof(struct tdls_info) );
}
void issue_nulldata_to_TDLS_peer_STA(_adapter *padapter, struct sta_info *ptdls_sta, unsigned int power_mode)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
unsigned char *pframe;
struct rtw_ieee80211_hdr *pwlanhdr;
unsigned short *fctrl;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
update_mgntframe_attrib(padapter, pattrib);
_rtw_memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);
pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;
fctrl = &(pwlanhdr->frame_ctl);
*(fctrl) = 0;
// SetToDs(fctrl);
if (power_mode)
{
SetPwrMgt(fctrl);
}
_rtw_memcpy(pwlanhdr->addr1, ptdls_sta->hwaddr, ETH_ALEN);
_rtw_memcpy(pwlanhdr->addr2, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pwlanhdr->addr3, get_my_bssid(&(pmlmeinfo->network)), ETH_ALEN);
ptdls_sta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
ptdls_sta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
pattrib->seqnum = ptdls_sta->sta_xmitpriv.txseq_tid[pattrib->priority];
SetSeqNum(pwlanhdr, pattrib->seqnum);
SetFrameSubType(pframe, WIFI_DATA_NULL);
pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);
pattrib->last_txcmdsz = pattrib->pktlen;
dump_mgntframe(padapter, pmgntframe);
return;
}
s32 update_tdls_attrib(_adapter *padapter, struct pkt_attrib *pattrib)
{
struct sta_info *psta = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct qos_priv *pqospriv= &pmlmepriv->qospriv;
s32 res=_SUCCESS;
sint bmcast;
bmcast = IS_MCAST(pattrib->ra);
psta = rtw_get_stainfo(pstapriv, pattrib->ra);
if (psta == NULL) {
res =_FAIL;
goto exit;
}
pattrib->mac_id = psta->mac_id;
pattrib->psta = psta;
pattrib->ack_policy = 0;
// get ether_hdr_len
pattrib->pkt_hdrlen = ETH_HLEN;//(pattrib->ether_type == 0x8100) ? (14 + 4 ): 14; //vlan tag
if (pqospriv->qos_option && psta->qos_option) {
pattrib->priority = 1; //tdls management frame should be AC_BK
pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
pattrib->subtype = WIFI_QOS_DATA_TYPE;
} else {
pattrib->hdrlen = WLAN_HDR_A3_LEN;
pattrib->subtype = WIFI_DATA_TYPE;
pattrib->priority = 0;
}
if (psta->ieee8021x_blocked == _TRUE)
{
pattrib->encrypt = 0;
}
else
{
GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast);
switch(psecuritypriv->dot11AuthAlgrthm)
{
case dot11AuthAlgrthm_Open:
case dot11AuthAlgrthm_Shared:
case dot11AuthAlgrthm_Auto:
pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
break;
case dot11AuthAlgrthm_8021X:
pattrib->key_idx = 0;
break;
default:
pattrib->key_idx = 0;
break;
}
}
switch (pattrib->encrypt)
{
case _WEP40_:
case _WEP104_:
pattrib->iv_len = 4;
pattrib->icv_len = 4;
break;
case _TKIP_:
pattrib->iv_len = 8;
pattrib->icv_len = 4;
if(padapter->securitypriv.busetkipkey==_FAIL)
{
res =_FAIL;
goto exit;
}
break;
case _AES_:
pattrib->iv_len = 8;
pattrib->icv_len = 8;
break;
default:
pattrib->iv_len = 0;
pattrib->icv_len = 0;
break;
}
if (pattrib->encrypt &&
((padapter->securitypriv.sw_encrypt == _TRUE) || (psecuritypriv->hw_decrypted == _FALSE)))
{
pattrib->bswenc = _TRUE;
} else {
pattrib->bswenc = _FALSE;
}
//qos_en, ht_en, init rate, ,bw, ch_offset, sgi
pattrib->qos_en = psta->qos_option;
pattrib->ht_en = psta->htpriv.ht_option;
pattrib->raid = psta->raid;
pattrib->bwmode = psta->htpriv.bwmode;
pattrib->ch_offset = psta->htpriv.ch_offset;
pattrib->sgi= psta->htpriv.sgi;
pattrib->ampdu_en = _FALSE;
//if(pattrib->ht_en && psta->htpriv.ampdu_enable)
//{
// if(psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
// pattrib->ampdu_en = _TRUE;
//}
exit:
return res;
}
void free_tdls_sta(_adapter *padapter, struct sta_info *ptdls_sta)
{
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
struct sta_priv *pstapriv = &padapter->stapriv;
_irqL irqL;
//free peer sta_info
_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if(ptdlsinfo->sta_cnt != 0)
ptdlsinfo->sta_cnt--;
_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if( ptdlsinfo->sta_cnt < (NUM_STA - 2) ) // -2: AP + BC/MC sta
{
ptdlsinfo->sta_maximum = _FALSE;
_rtw_memset( &ptdlsinfo->ss_record, 0x00, sizeof(struct tdls_ss_record) );
}
//ready to clear cam
if(ptdls_sta->mac_id!=0){
ptdlsinfo->clear_cam=ptdls_sta->mac_id;
rtw_setstakey_cmd(padapter, (u8 *)ptdls_sta, _TRUE);
}
if(ptdlsinfo->sta_cnt==0){
rtw_tdls_cmd(padapter, myid(&(padapter->eeprompriv)), TDLS_RS_RCR);
ptdlsinfo->setup_state=TDLS_STATE_NONE;
}
else
DBG_871X("Remain tdls sta:%02x\n", ptdlsinfo->sta_cnt);
rtw_free_stainfo(padapter, ptdls_sta);
}
// cam entry will be the same as mac_id
void rtw_tdls_set_mac_id(struct tdls_info *ptdlsinfo, struct sta_info *ptdls_sta)
{
if(ptdls_sta->mac_id==0)
{
ptdls_sta->mac_id = ptdlsinfo->macid_index;
if( (++ptdlsinfo->macid_index) > (NUM_STA -2) )
ptdlsinfo->macid_index= TDLS_INI_MACID_ENTRY;
}
}
//TDLS encryption(if needed) will always be CCMP
void rtw_tdls_set_key(_adapter *adapter, struct rx_pkt_attrib *prx_pkt_attrib, struct sta_info *ptdls_sta)
{
if(prx_pkt_attrib->encrypt)
{
ptdls_sta->dot118021XPrivacy=_AES_;
rtw_setstakey_cmd(adapter, (u8*)ptdls_sta, _TRUE);
}
}
void rtw_tdls_process_ht_cap(_adapter *adapter, struct sta_info *ptdls_sta, u8 *data, u8 Length)
{
/* save HT capabilities in the sta object */
_rtw_memset(&ptdls_sta->htpriv.ht_cap, 0, sizeof(struct rtw_ieee80211_ht_cap));
if (data && Length >= sizeof(struct rtw_ieee80211_ht_cap) )
{
ptdls_sta->flags |= WLAN_STA_HT;
ptdls_sta->flags |= WLAN_STA_WME;
_rtw_memcpy(&ptdls_sta->htpriv.ht_cap, data, sizeof(struct rtw_ieee80211_ht_cap));
} else
ptdls_sta->flags &= ~WLAN_STA_HT;
if(ptdls_sta->flags & WLAN_STA_HT)
{
if(adapter->registrypriv.ht_enable == _TRUE)
{
ptdls_sta->htpriv.ht_option = _TRUE;
}
else
{
ptdls_sta->htpriv.ht_option = _FALSE;
ptdls_sta->stat_code = _STATS_FAILURE_;
}
}
//HT related cap
if(ptdls_sta->htpriv.ht_option)
{
//check if sta supports rx ampdu
if(adapter->registrypriv.ampdu_enable==1)
ptdls_sta->htpriv.ampdu_enable = _TRUE;
//check if sta support s Short GI
if(ptdls_sta->htpriv.ht_cap.cap_info & cpu_to_le16(IEEE80211_HT_CAP_SGI_20|IEEE80211_HT_CAP_SGI_40))
{
ptdls_sta->htpriv.sgi = _TRUE;
}
// bwmode would still followed AP's setting
if(ptdls_sta->htpriv.ht_cap.cap_info & cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH))
{
ptdls_sta->htpriv.bwmode = adapter->mlmeextpriv.cur_bwmode;
ptdls_sta->htpriv.ch_offset = adapter->mlmeextpriv.cur_ch_offset;
}
}
}
u8 *rtw_tdls_set_ht_cap(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
{
struct rtw_ieee80211_ht_cap ht_capie;
u8 rf_type;
//HT capabilities
_rtw_memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |IEEE80211_HT_CAP_SGI_20 |IEEE80211_HT_CAP_SM_PS |
IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_TX_STBC |IEEE80211_HT_CAP_DSSSCCK40;
{
u32 rx_packet_offset, max_recvbuf_sz;
padapter->HalFunc.GetHalDefVarHandler(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
padapter->HalFunc.GetHalDefVarHandler(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
if(max_recvbuf_sz-rx_packet_offset>(8191-256))
ht_capie.cap_info = ht_capie.cap_info |IEEE80211_HT_CAP_MAX_AMSDU;
}
ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR&0x03);
padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
switch(rf_type)
{
case RF_1T1R:
ht_capie.cap_info |= 0x0100;//RX STBC One spatial stream
_rtw_memcpy(ht_capie.supp_mcs_set, MCS_rate_1R, 16);
break;
case RF_2T2R:
case RF_1T2R:
default:
ht_capie.cap_info|= 0x0200;//RX STBC two spatial stream
_rtw_memcpy(ht_capie.supp_mcs_set, MCS_rate_2R, 16);
break;
}
return(rtw_set_ie(pframe, _HT_CAPABILITY_IE_,
sizeof(struct rtw_ieee80211_ht_cap), (unsigned char*)&ht_capie, &(pattrib->pktlen)));
}
u8 *rtw_tdls_set_sup_ch(struct mlme_ext_priv *pmlmeext, u8 *pframe, struct pkt_attrib *pattrib)
{
u8 sup_ch[ 30 * 2 ] = { 0x00 }, sup_ch_idx = 0, idx_5g = 2; //For supported channel
do{
if( pmlmeext->channel_set[sup_ch_idx].ChannelNum <= 14 )
{
sup_ch[0] = 1; //First channel number
sup_ch[1] = pmlmeext->channel_set[sup_ch_idx].ChannelNum; //Number of channel
}
else
{
sup_ch[idx_5g++] = pmlmeext->channel_set[sup_ch_idx].ChannelNum;
sup_ch[idx_5g++] = 1;
}
sup_ch_idx++;
}
while( pmlmeext->channel_set[sup_ch_idx].ChannelNum != 0 );
return(rtw_set_ie(pframe, _SUPPORTED_CH_IE_, idx_5g, sup_ch, &(pattrib->pktlen)));
}
#ifdef CONFIG_WFD
void rtw_tdls_process_wfd_ie(struct tdls_info *ptdlsinfo, u8 *ptr, u8 length)
{
u8 wfd_ie[ 128 ] = { 0x00 };
u32 wfd_ielen = 0;
u32 wfd_offset = 0;
// Try to get the TCP port information when receiving the negotiation response.
//
wfd_offset = 0;
wfd_offset = rtw_get_wfd_ie( ptr + wfd_offset, length - wfd_offset, wfd_ie, &wfd_ielen );
while( wfd_offset )
{
u8 attr_content[ 10 ] = { 0x00 };
u32 attr_contentlen = 0;
int i;
DBG_871X( "[%s] WFD IE Found!!\n", __FUNCTION__ );
rtw_get_wfd_attr_content( wfd_ie, wfd_ielen, WFD_ATTR_DEVICE_INFO, attr_content, &attr_contentlen);
if ( attr_contentlen )
{
ptdlsinfo->wfd_info->peer_rtsp_ctrlport = RTW_GET_BE16( attr_content + 2 );
DBG_871X( "[%s] Peer PORT NUM = %d\n", __FUNCTION__, ptdlsinfo->wfd_info->peer_rtsp_ctrlport );
}
_rtw_memset( attr_content, 0x00, 10);
attr_contentlen = 0;
rtw_get_wfd_attr_content( wfd_ie, wfd_ielen, WFD_ATTR_LOCAL_IP_ADDR, attr_content, &attr_contentlen);
if ( attr_contentlen )
{
_rtw_memcpy(ptdlsinfo->wfd_info->peer_ip_address, ( attr_content + 1 ), 4);
DBG_871X( "[%s] Peer IP = %02u.%02u.%02u.%02u \n", __FUNCTION__,
ptdlsinfo->wfd_info->peer_ip_address[0], ptdlsinfo->wfd_info->peer_ip_address[1],
ptdlsinfo->wfd_info->peer_ip_address[2], ptdlsinfo->wfd_info->peer_ip_address[3]
);
}
wfd_offset = rtw_get_wfd_ie( ptr + wfd_offset, length - wfd_offset, wfd_ie, &wfd_ielen );
}
}
void issue_tunneled_probe_req(_adapter *padapter)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
u8 baddr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
DBG_871X("[%s]\n", __FUNCTION__);
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, baddr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TUNNELED_PROBE_REQ) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
void issue_tunneled_probe_rsp(_adapter *padapter, union recv_frame *precv_frame)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct rx_pkt_attrib *rx_pkt_pattrib = &precv_frame->u.hdr.attrib;
DBG_871X("[%s]\n", __FUNCTION__);
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, rx_pkt_pattrib->src, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TUNNELED_PROBE_RSP) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
#endif //CONFIG_WFD
void issue_tdls_setup_req(_adapter *padapter, u8 *mac_addr)
{
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *ptdls_sta= NULL;
_irqL irqL;
static u8 dialogtoken = 0;
u32 timeout_interval= TPK_RESEND_COUNT * 1000; //retry timer should set at least 301 sec, using TPK_count counting 301 times.
if(ptdlsinfo->ap_prohibited == _TRUE)
goto exit;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, mac_addr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
//init peer sta_info
ptdls_sta = rtw_get_stainfo(pstapriv, mac_addr);
if(ptdls_sta==NULL)
{
ptdls_sta = rtw_alloc_stainfo(pstapriv, mac_addr);
if(ptdls_sta)
{
_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if(!(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE))
ptdlsinfo->sta_cnt++;
_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if( ptdlsinfo->sta_cnt == (NUM_STA - 2) ) // -2: AP + BC/MC sta
{
ptdlsinfo->sta_maximum = _TRUE;
}
}
else
{
rtw_free_xmitbuf(pxmitpriv,pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
}
if(ptdls_sta){
ptdls_sta->tdls_sta_state |= TDLS_RESPONDER_STATE;
//for tdls; ptdls_sta->aid is used to fill dialogtoken
ptdls_sta->dialog = dialogtoken;
dialogtoken = (dialogtoken+1)%256;
ptdls_sta->TDLS_PeerKey_Lifetime = timeout_interval;
_set_timer( &ptdls_sta->handshake_timer, TDLS_HANDSHAKE_TIME );
}
pattrib->qsel=pattrib->priority;
if(rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_SETUP_REQUEST) !=_SUCCESS ){
rtw_free_xmitbuf(pxmitpriv,pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
void issue_tdls_teardown(_adapter *padapter, u8 *mac_addr)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *ptdls_sta=NULL;
_irqL irqL;
ptdls_sta = rtw_get_stainfo(pstapriv, mac_addr);
if(ptdls_sta==NULL){
DBG_871X("issue tdls teardown unsuccessful\n");
return;
}else{
ptdls_sta->tdls_sta_state=TDLS_STATE_NONE;
}
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, mac_addr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_TEARDOWN) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
if(ptdls_sta->tdls_sta_state & TDLS_CH_SWITCH_ON_STATE){
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_CS_OFF);
}
if( ptdls_sta->timer_flag == 1 )
{
_enter_critical_bh(&(padapter->tdlsinfo.hdl_lock), &irqL);
ptdls_sta->timer_flag = 2;
_exit_critical_bh(&(padapter->tdlsinfo.hdl_lock), &irqL);
}
else
rtw_tdls_cmd(padapter, mac_addr, TDLS_FREE_STA );
exit:
return;
}
void issue_tdls_dis_req(_adapter *padapter, u8 *mac_addr)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
u8 baddr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
if(mac_addr == NULL)
_rtw_memcpy(pattrib->dst, baddr, ETH_ALEN);
else
_rtw_memcpy(pattrib->dst, mac_addr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_DISCOVERY_REQUEST) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
DBG_871X("issue tdls dis req\n");
exit:
return;
}
void issue_tdls_setup_rsp(_adapter *padapter, union recv_frame *precv_frame)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
struct rx_pkt_attrib *rx_pkt_pattrib = &precv_frame->u.hdr.attrib;
_irqL irqL;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, rx_pkt_pattrib->src, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, rx_pkt_pattrib->bssid, ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_SETUP_RESPONSE) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
void issue_tdls_setup_cfm(_adapter *padapter, union recv_frame *precv_frame)
{
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct sta_info *ptdls_sta=NULL;
_irqL irqL;
struct rx_pkt_attrib *rx_pkt_pattrib = & precv_frame->u.hdr.attrib;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, rx_pkt_pattrib->src, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, rx_pkt_pattrib->bssid, ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_SETUP_CONFIRM) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
//TDLS Discovery Response frame is a management action frame
void issue_tdls_dis_rsp(_adapter *padapter, union recv_frame *precv_frame, u8 dialog)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
unsigned char *pframe;
struct rtw_ieee80211_hdr *pwlanhdr;
unsigned short *fctrl;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct rx_pkt_attrib *rx_pkt_pattrib = &precv_frame->u.hdr.attrib;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
update_mgntframe_attrib(padapter, pattrib);
_rtw_memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);
pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;
fctrl = &(pwlanhdr->frame_ctl);
*(fctrl) = 0;
// unicast probe request frame
_rtw_memcpy(pwlanhdr->addr1, rx_pkt_pattrib->src, ETH_ALEN);
_rtw_memcpy(pattrib->dst, pwlanhdr->addr1, ETH_ALEN);
_rtw_memcpy(pwlanhdr->addr2, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->src, pwlanhdr->addr2, ETH_ALEN);
_rtw_memcpy(pwlanhdr->addr3, rx_pkt_pattrib->bssid, ETH_ALEN);
_rtw_memcpy(pattrib->ra, pwlanhdr->addr3, ETH_ALEN);
SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
pmlmeext->mgnt_seq++;
SetFrameSubType(pframe, WIFI_ACTION);
pframe += sizeof (struct rtw_ieee80211_hdr_3addr);
pattrib->pktlen = sizeof (struct rtw_ieee80211_hdr_3addr);
rtw_build_tdls_dis_rsp_ies(padapter, pmgntframe, pframe, dialog);
pattrib->nr_frags = 1;
pattrib->last_txcmdsz = pattrib->pktlen;
dump_mgntframe(padapter, pmgntframe);
return;
}
void issue_tdls_peer_traffic_indication(_adapter *padapter, struct sta_info *ptdls_sta)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
static u8 dialogtoken=0;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, ptdls_sta->hwaddr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
//for tdls; pattrib->nr_frags is used to fill dialogtoken
ptdls_sta->dialog = dialogtoken;
dialogtoken = (dialogtoken+1)%256;
//PTI frame's priority should be AC_VO
pattrib->priority = 7;
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_PEER_TRAFFIC_INDICATION) != _SUCCESS) {
rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
void issue_tdls_ch_switch_req(_adapter *padapter, u8 *mac_addr)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, mac_addr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
if(rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_CHANNEL_SWITCH_REQUEST) !=_SUCCESS ){
rtw_free_xmitbuf(pxmitpriv,pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
void issue_tdls_ch_switch_rsp(_adapter *padapter, u8 *mac_addr)
{
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
_irqL irqL;
if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
{
return;
}
//update attribute
pattrib = &pmgntframe->attrib;
pmgntframe->frame_tag = DATA_FRAMETAG;
pattrib->ether_type = 0x890d;
_rtw_memcpy(pattrib->dst, mac_addr, ETH_ALEN);
_rtw_memcpy(pattrib->src, myid(&(padapter->eeprompriv)), ETH_ALEN);
_rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
_rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
update_tdls_attrib(padapter, pattrib);
pattrib->qsel=pattrib->priority;
/*
_enter_critical_bh(&pxmitpriv->lock, &irqL);
if(xmitframe_enqueue_for_tdls_sleeping_sta(padapter, pmgntframe)==_TRUE){
_exit_critical_bh(&pxmitpriv->lock, &irqL);
return _FALSE;
}
*/
if(rtw_xmit_tdls_coalesce(padapter, pmgntframe, TDLS_CHANNEL_SWITCH_RESPONSE) !=_SUCCESS ){
rtw_free_xmitbuf(pxmitpriv,pmgntframe->pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pmgntframe);
goto exit;
}
rtw_dump_xframe(padapter, pmgntframe);
exit:
return;
}
sint On_TDLS_Dis_Rsp(_adapter *adapter, union recv_frame *precv_frame)
{
struct sta_info *ptdls_sta = NULL, *psta = rtw_get_stainfo(&(adapter->stapriv), get_bssid(&(adapter->mlmepriv)));
struct recv_priv *precvpriv = &(adapter->recvpriv);
u8 *ptr = precv_frame->u.hdr.rx_data, *psa;
struct rx_pkt_attrib *pattrib = &(precv_frame->u.hdr.attrib);
struct tdls_info *ptdlsinfo = &(adapter->tdlsinfo);
u8 empty_addr[ETH_ALEN] = { 0x00 };
int UndecoratedSmoothedPWDB;
//WFDTDLS: for sigma test, not to setup direct link automatically
ptdlsinfo->dev_discovered = 1;
#ifdef CONFIG_TDLS_AUTOSETUP
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(&(adapter->stapriv), psa);
if(ptdls_sta != NULL)
{
ptdls_sta->tdls_sta_state |= TDLS_ALIVE_STATE;
//Record the tdls sta with lowest signal strength
if( (ptdlsinfo->sta_maximum == _TRUE) && (ptdls_sta->alive_count >= 1) )
{
if( _rtw_memcmp(ptdlsinfo->ss_record.macaddr, empty_addr, ETH_ALEN) )
{
_rtw_memcpy(ptdlsinfo->ss_record.macaddr, psa, ETH_ALEN);
ptdlsinfo->ss_record.RxPWDBAll = pattrib->RxPWDBAll;
}
else
{
if( ptdlsinfo->ss_record.RxPWDBAll < pattrib->RxPWDBAll )
{
_rtw_memcpy(ptdlsinfo->ss_record.macaddr, psa, ETH_ALEN);
ptdlsinfo->ss_record.RxPWDBAll = pattrib->RxPWDBAll;
}
}
}
}
else
{
if( ptdlsinfo->sta_maximum == _TRUE)
{
if( _rtw_memcmp( ptdlsinfo->ss_record.macaddr, empty_addr, ETH_ALEN ) )
{
//All traffics are busy, do not set up another direct link.
return _FAIL;
}
else
{
if( pattrib->RxPWDBAll > ptdlsinfo->ss_record.RxPWDBAll )
{
issue_tdls_teardown(adapter, ptdlsinfo->ss_record.macaddr);
}
else
{
return _FAIL;
}
}
}
adapter->HalFunc.GetHalDefVarHandler(adapter, HAL_DEF_UNDERCORATEDSMOOTHEDPWDB, &UndecoratedSmoothedPWDB);
if( pattrib->RxPWDBAll + TDLS_SIGNAL_THRESH >= UndecoratedSmoothedPWDB);
{
DBG_871X("pattrib->RxPWDBAll=%d, pdmpriv->UndecoratedSmoothedPWDB=%d\n", pattrib->RxPWDBAll, UndecoratedSmoothedPWDB);
issue_tdls_setup_req(adapter, psa);
}
}
#endif //CONFIG_TDLS_AUTOSETUP
return _SUCCESS;
}
sint On_TDLS_Setup_Req(_adapter *adapter, union recv_frame *precv_frame)
{
struct tdls_info *ptdlsinfo = &adapter->tdlsinfo;
u8 *psa, *pmyid;
struct sta_info *ptdls_sta= NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
u8 *ptr = precv_frame->u.hdr.rx_data;
struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
struct security_priv *psecuritypriv = &adapter->securitypriv;
_irqL irqL;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
u8 *prsnie, *ppairwise_cipher;
u8 i, k, pairwise_count;
u8 ccmp_have=0, rsnie_have=0;
u16 j;
u8 SNonce[32];
u32 *timeout_interval;
sint parsing_length; //frame body length, without icv_len
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE = 5;
unsigned char supportRate[16];
int supportRateNum = 0;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
pmyid=myid(&(adapter->eeprompriv));
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len+LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE+1;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-ETH_TYPE_LEN
-PAYLOAD_TYPE_LEN
-FIXED_IE;
if(ptdlsinfo->ap_prohibited == _TRUE)
{
goto exit;
}
if(ptdls_sta==NULL){
ptdls_sta = rtw_alloc_stainfo(pstapriv, psa);
}else{
if(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE){
//If the direct link is already set up
//Process as re-setup after tear down
DBG_871X("re-setup a direct link\n");
}
//already receiving TDLS setup request
else if(ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE){
DBG_871X("receive duplicated TDLS setup request frame in handshaking\n");
goto exit;
}
//When receiving and sending setup_req to the same link at the same time, STA with higher MAC_addr would be initiator
//following is to check out MAC_addr
else if(ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE){
DBG_871X("receive setup_req after sending setup_req\n");
for (i=0;i<6;i++){
if(*(pmyid+i)==*(psa+i)){
}
else if(*(pmyid+i)>*(psa+i)){
goto exit;
}else if(*(pmyid+i)<*(psa+i)){
ptdls_sta->tdls_sta_state=TDLS_INITIATOR_STATE;
break;
}
}
}
}
if(ptdls_sta)
{
ptdls_sta->dialog = *(ptr+2); //copy dialog token
ptdls_sta->stat_code = 0;
//parsing information element
for(j=FIXED_IE; j<parsing_length;){
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _SUPPORTEDRATES_IE_:
_rtw_memcpy(supportRate, pIE->data, pIE->Length);
supportRateNum = pIE->Length;
break;
case _COUNTRY_IE_:
break;
case _EXT_SUPPORTEDRATES_IE_:
if(supportRateNum<=sizeof(supportRate))
{
_rtw_memcpy(supportRate+supportRateNum, pIE->data, pIE->Length);
supportRateNum += pIE->Length;
}
break;
case _SUPPORTED_CH_IE_:
break;
case _RSN_IE_2_:
rsnie_have=1;
if(prx_pkt_attrib->encrypt){
prsnie=(u8*)pIE;
//check whether initiator STA has CCMP pairwise_cipher.
ppairwise_cipher=prsnie+10;
_rtw_memcpy(&pairwise_count, (u16*)(ppairwise_cipher-2), 1);
for(k=0;k<pairwise_count;k++){
if(_rtw_memcmp( ppairwise_cipher+4*k, RSN_CIPHER_SUITE_CCMP, 4)==_TRUE)
ccmp_have=1;
}
if(ccmp_have==0){
//invalid contents of RSNIE
ptdls_sta->stat_code=72;
}
}
break;
case _EXT_CAP_IE_:
break;
case _VENDOR_SPECIFIC_IE_:
break;
case _FTIE_:
if(prx_pkt_attrib->encrypt)
_rtw_memcpy(SNonce, (ptr+j+52), 32);
break;
case _TIMEOUT_ITVL_IE_:
if(prx_pkt_attrib->encrypt)
timeout_interval = (u32 *)(ptr+j+3);
break;
case _RIC_Descriptor_IE_:
break;
case _HT_CAPABILITY_IE_:
rtw_tdls_process_ht_cap(adapter, ptdls_sta, pIE->data, pIE->Length);
break;
case EID_BSSCoexistence:
break;
case _LINK_ID_IE_:
if(_rtw_memcmp(get_bssid(pmlmepriv), pIE->data, 6) == _FALSE)
{
//not in the same BSS
ptdls_sta->stat_code=7;
}
break;
default:
break;
}
j += (pIE->Length + 2);
}
//update station supportRate
ptdls_sta->bssratelen = supportRateNum;
_rtw_memcpy(ptdls_sta->bssrateset, supportRate, supportRateNum);
//check status code
//if responder STA has/hasn't security on AP, but request hasn't/has RSNIE, it should reject
if(ptdls_sta->stat_code == 0 )
{
if(rsnie_have && (prx_pkt_attrib->encrypt==0)){
//security disabled
ptdls_sta->stat_code = 5;
}else if(rsnie_have==0 && (prx_pkt_attrib->encrypt)){
//request haven't RSNIE
ptdls_sta->stat_code = 38;
}
#ifdef CONFIG_WFD
//WFD test plan version 0.18.2 test item 5.1.5
//SoUT does not use TDLS if AP uses weak security
if ( adapter->wdinfo.wfd_tdls_enable )
{
if(rsnie_have && (prx_pkt_attrib->encrypt != _AES_))
{
ptdls_sta->stat_code = 5;
}
}
#endif //CONFIG_WFD
}
ptdls_sta->tdls_sta_state|= TDLS_INITIATOR_STATE;
if(prx_pkt_attrib->encrypt){
_rtw_memcpy(ptdls_sta->SNonce, SNonce, 32);
_rtw_memcpy(&(ptdls_sta->TDLS_PeerKey_Lifetime), timeout_interval, 4);
}
_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if(!(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE))
ptdlsinfo->sta_cnt++;
_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
if( ptdlsinfo->sta_cnt == (NUM_STA - 2) ) // -2: AP + BC/MC sta
{
ptdlsinfo->sta_maximum = _TRUE;
}
#ifdef CONFIG_WFD
rtw_tdls_process_wfd_ie(ptdlsinfo, ptr + FIXED_IE, parsing_length - FIXED_IE);
#endif // CONFIG_WFD
}
else
{
goto exit;
}
issue_tdls_setup_rsp(adapter, precv_frame);
if(ptdls_sta->stat_code==0)
{
_set_timer( &ptdls_sta->handshake_timer, TDLS_HANDSHAKE_TIME);
}
else //status code!=0 ; setup unsuccess
{
free_tdls_sta(adapter, ptdls_sta);
}
exit:
return _FAIL;
}
sint On_TDLS_Setup_Rsp(_adapter *adapter, union recv_frame *precv_frame)
{
struct tdls_info *ptdlsinfo = &adapter->tdlsinfo;
struct sta_info *ptdls_sta= NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
u8 *ptr = precv_frame->u.hdr.rx_data;
_irqL irqL;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
u8 *psa;
u16 stat_code;
sint parsing_length; //frame body length, without icv_len
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE =7;
u8 *pftie, *ptimeout_ie, *plinkid_ie, *prsnie, *pftie_mic, *ppairwise_cipher;
u16 pairwise_count, j, k;
u8 verify_ccmp=0;
unsigned char supportRate[16];
int supportRateNum = 0;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
if ( NULL == ptdls_sta )
{
return _FAIL;
}
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len+LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE+1;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-TYPE_LENGTH_FIELD_SIZE
-1
-FIXED_IE;
_rtw_memcpy(&stat_code, ptr+2, 2);
if(stat_code!=0)
{
DBG_871X( "[%s] status_code = %d, free_tdls_sta\n", __FUNCTION__, stat_code );
free_tdls_sta(adapter, ptdls_sta);
return _FAIL;
}
stat_code = 0;
//parsing information element
for(j=FIXED_IE; j<parsing_length;)
{
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _SUPPORTEDRATES_IE_:
_rtw_memcpy(supportRate, pIE->data, pIE->Length);
supportRateNum = pIE->Length;
break;
case _COUNTRY_IE_:
break;
case _EXT_SUPPORTEDRATES_IE_:
if(supportRateNum<=sizeof(supportRate))
{
_rtw_memcpy(supportRate+supportRateNum, pIE->data, pIE->Length);
supportRateNum += pIE->Length;
}
break;
case _SUPPORTED_CH_IE_:
break;
case _RSN_IE_2_:
prsnie=(u8*)pIE;
//check whether responder STA has CCMP pairwise_cipher.
ppairwise_cipher=prsnie+10;
_rtw_memcpy(&pairwise_count, (u16*)(ppairwise_cipher-2), 2);
for(k=0;k<pairwise_count;k++){
if(_rtw_memcmp( ppairwise_cipher+4*k, RSN_CIPHER_SUITE_CCMP, 4)==_TRUE)
verify_ccmp=1;
}
case _EXT_CAP_IE_:
break;
case _VENDOR_SPECIFIC_IE_:
break;
case _FTIE_:
pftie=(u8*)pIE;
_rtw_memcpy(ptdls_sta->ANonce, (ptr+j+20), 32);
break;
case _TIMEOUT_ITVL_IE_:
ptimeout_ie=(u8*)pIE;
break;
case _RIC_Descriptor_IE_:
break;
case _HT_CAPABILITY_IE_:
rtw_tdls_process_ht_cap(adapter, ptdls_sta, pIE->data, pIE->Length);
break;
case EID_BSSCoexistence:
break;
case _LINK_ID_IE_:
plinkid_ie=(u8*)pIE;
break;
default:
break;
}
j += (pIE->Length + 2);
}
//update station supportRate
ptdls_sta->bssratelen = supportRateNum;
_rtw_memcpy(ptdls_sta->bssrateset, supportRate, supportRateNum);
#ifdef CONFIG_WFD
rtw_tdls_process_wfd_ie(ptdlsinfo, ptr + FIXED_IE, parsing_length - FIXED_IE);
#endif // CONFIG_WFD
if(stat_code != 0)
{
ptdls_sta->stat_code = stat_code;
}
else
{
if(prx_pkt_attrib->encrypt)
{
if(verify_ccmp==1)
{
wpa_tdls_generate_tpk(adapter, ptdls_sta);
ptdls_sta->stat_code=0;
if(tdls_verify_mic(ptdls_sta->tpk.kck, 2, plinkid_ie, prsnie, ptimeout_ie, pftie)==0) //0: Invalid, 1: valid
{
free_tdls_sta(adapter, ptdls_sta);
return _FAIL;
}
}
else
{
ptdls_sta->stat_code=72; //invalide contents of RSNIE
}
}else{
ptdls_sta->stat_code=0;
}
}
DBG_871X("issue_tdls_setup_cfm\n");
issue_tdls_setup_cfm(adapter, precv_frame);
if(ptdls_sta->stat_code==0)
{
ptdlsinfo->setup_state = TDLS_LINKED_STATE;
if( ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE )
{
ptdls_sta->tdls_sta_state |= TDLS_LINKED_STATE;
_cancel_timer_ex( &ptdls_sta->handshake_timer);
#ifdef CONFIG_TDLS_AUTOCHECKALIVE
_set_timer( &ptdls_sta->alive_timer1, TDLS_ALIVE_TIMER_PH1);
#endif //CONFIG_TDLS_AUTOSETUP
}
rtw_tdls_set_mac_id(ptdlsinfo, ptdls_sta);
rtw_tdls_set_key(adapter, prx_pkt_attrib, ptdls_sta);
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_WRCR);
}
else //status code!=0 ; setup unsuccessful
{
free_tdls_sta(adapter, ptdls_sta);
}
return _FAIL;
}
sint On_TDLS_Setup_Cfm(_adapter *adapter, union recv_frame *precv_frame)
{
struct tdls_info *ptdlsinfo = &adapter->tdlsinfo;
struct sta_info *ptdls_sta= NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
u8 *ptr = precv_frame->u.hdr.rx_data;
_irqL irqL;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
u8 *psa;
u16 stat_code;
sint parsing_length;
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE =5;
u8 *pftie, *ptimeout_ie, *plinkid_ie, *prsnie, *pftie_mic, *ppairwise_cipher;
u16 j, pairwise_count;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len+LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE+1;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-ETH_TYPE_LEN
-PAYLOAD_TYPE_LEN
-FIXED_IE;
_rtw_memcpy(&stat_code, ptr+2, 2);
if(stat_code!=0){
DBG_871X( "[%s] stat_code = %d\n, free_tdls_sta", __FUNCTION__, stat_code );
free_tdls_sta(adapter, ptdls_sta);
return _FAIL;
}
if(prx_pkt_attrib->encrypt){
//parsing information element
for(j=FIXED_IE; j<parsing_length;){
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _RSN_IE_2_:
prsnie=(u8*)pIE;
break;
case _VENDOR_SPECIFIC_IE_:
break;
case _FTIE_:
pftie=(u8*)pIE;
break;
case _TIMEOUT_ITVL_IE_:
ptimeout_ie=(u8*)pIE;
break;
case _HT_EXTRA_INFO_IE_:
break;
case _LINK_ID_IE_:
plinkid_ie=(u8*)pIE;
break;
default:
break;
}
j += (pIE->Length + 2);
}
//verify mic in FTIE MIC field
if(tdls_verify_mic(ptdls_sta->tpk.kck, 3, plinkid_ie, prsnie, ptimeout_ie, pftie)==0){ //0: Invalid, 1: Valid
free_tdls_sta(adapter, ptdls_sta);
return _FAIL;
}
}
ptdlsinfo->setup_state = TDLS_LINKED_STATE;
if( ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE )
{
ptdls_sta->tdls_sta_state|=TDLS_LINKED_STATE;
_cancel_timer_ex( &ptdls_sta->handshake_timer);
#ifdef CONFIG_TDLS_AUTOCHECKALIVE
_set_timer( &ptdls_sta->alive_timer1, TDLS_ALIVE_TIMER_PH1);
#endif //CONFIG_TDLS_AUTOCHECKALIVE
}
rtw_tdls_set_mac_id(ptdlsinfo, ptdls_sta);
rtw_tdls_set_key(adapter, prx_pkt_attrib, ptdls_sta);
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_WRCR);
return _FAIL;
}
sint On_TDLS_Dis_Req(_adapter *adapter, union recv_frame *precv_frame)
{
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
struct sta_priv *pstapriv = &adapter->stapriv;
struct sta_info *psta_ap;
u8 *ptr = precv_frame->u.hdr.rx_data;
sint parsing_length; //frame body length, without icv_len
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE = 3, *dst, *pdialog = NULL;
u16 j;
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE + 1;
pdialog=ptr+2;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-TYPE_LENGTH_FIELD_SIZE
-1
-FIXED_IE;
//parsing information element
for(j=FIXED_IE; j<parsing_length;){
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _LINK_ID_IE_:
psta_ap = rtw_get_stainfo(pstapriv, pIE->data);
if(psta_ap == NULL)
{
goto exit;
}
dst = pIE->data + 12;
if( (MacAddr_isBcst(dst) == _FALSE) && (_rtw_memcmp(myid(&(adapter->eeprompriv)), dst, 6) == _FALSE) )
{
goto exit;
}
break;
default:
break;
}
j += (pIE->Length + 2);
}
//check frame contents
issue_tdls_dis_rsp(adapter, precv_frame, *(pdialog) );
exit:
return _FAIL;
}
sint On_TDLS_Teardown(_adapter *adapter, union recv_frame *precv_frame)
{
u8 *psa;
u8 *ptr = precv_frame->u.hdr.rx_data;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
struct sta_priv *pstapriv = &adapter->stapriv;
struct sta_info *ptdls_sta= NULL;
_irqL irqL;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
if(ptdls_sta!=NULL){
if(ptdls_sta->tdls_sta_state & TDLS_CH_SWITCH_ON_STATE){
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_CS_OFF);
}
free_tdls_sta(adapter, ptdls_sta);
}
return _FAIL;
}
u8 TDLS_check_ch_state(uint state){
if( (state & TDLS_CH_SWITCH_ON_STATE) &&
(state & TDLS_AT_OFF_CH_STATE) &&
(state & TDLS_PEER_AT_OFF_STATE) ){
if(state & TDLS_PEER_SLEEP_STATE)
return 2; //U-APSD + ch. switch
else
return 1; //ch. switch
}else
return 0;
}
//we process buffered data for 1. U-APSD, 2. ch. switch, 3. U-APSD + ch. switch here
sint On_TDLS_Peer_Traffic_Rsp(_adapter *adapter, union recv_frame *precv_frame)
{
struct tdls_info *ptdlsinfo = &adapter->tdlsinfo;
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib;
struct sta_priv *pstapriv = &adapter->stapriv;
//get peer sta infomation
struct sta_info *ptdls_sta = rtw_get_stainfo(pstapriv, pattrib->src);
u8 wmmps_ac=0, state=TDLS_check_ch_state(ptdls_sta->tdls_sta_state);
int i;
ptdls_sta->sta_stats.rx_data_pkts++;
//receive peer traffic response frame, sleeping STA wakes up
//ptdls_sta->tdls_sta_state &= ~(TDLS_PEER_SLEEP_STATE);
process_wmmps_data( adapter, precv_frame);
// if noticed peer STA wakes up by receiving peer traffic response
// and we want to do channel swtiching, then we will transmit channel switch request first
if(ptdls_sta->tdls_sta_state & TDLS_APSD_CHSW_STATE){
issue_tdls_ch_switch_req(adapter, pattrib->src);
ptdls_sta->tdls_sta_state &= ~(TDLS_APSD_CHSW_STATE);
return _FAIL;
}
//check 4-AC queue bit
if(ptdls_sta->uapsd_vo || ptdls_sta->uapsd_vi || ptdls_sta->uapsd_be || ptdls_sta->uapsd_bk)
wmmps_ac=1;
//if it's a direct link and have buffered frame
if(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE){
if(wmmps_ac && state)
{
_irqL irqL;
_list *xmitframe_plist, *xmitframe_phead;
struct xmit_frame *pxmitframe=NULL;
_enter_critical_bh(&ptdls_sta->sleep_q.lock, &irqL);
xmitframe_phead = get_list_head(&ptdls_sta->sleep_q);
xmitframe_plist = get_next(xmitframe_phead);
//transmit buffered frames
while ((rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) == _FALSE)
{
pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
xmitframe_plist = get_next(xmitframe_plist);
rtw_list_delete(&pxmitframe->list);
ptdls_sta->sleepq_len--;
if(ptdls_sta->sleepq_len>0){
pxmitframe->attrib.mdata = 1;
pxmitframe->attrib.eosp = 0;
}else{
pxmitframe->attrib.mdata = 0;
pxmitframe->attrib.eosp = 1;
}
//pxmitframe->attrib.triggered = 1; //maybe doesn't need in TDLS
if(adapter->HalFunc.hal_xmit(adapter, pxmitframe) == _TRUE)
{
rtw_os_xmit_complete(adapter, pxmitframe);
}
}
if(ptdls_sta->sleepq_len==0)
{
DBG_871X("no buffered packets for tdls to xmit\n");
//on U-APSD + CH. switch state, when there is no buffered date to xmit,
// we should go back to base channel
if(state==2){
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_CS_OFF);
}else if(ptdls_sta->tdls_sta_state&TDLS_SW_OFF_STATE){
ptdls_sta->tdls_sta_state &= ~(TDLS_SW_OFF_STATE);
ptdlsinfo->candidate_ch= pmlmeext->cur_channel;
issue_tdls_ch_switch_req(adapter, pattrib->src);
DBG_871X("issue tdls ch switch req back to base channel\n");
}
}
else
{
DBG_871X("error!psta->sleepq_len=%d\n", ptdls_sta->sleepq_len);
ptdls_sta->sleepq_len=0;
}
_exit_critical_bh(&ptdls_sta->sleep_q.lock, &irqL);
}
}
return _FAIL;
}
sint On_TDLS_Ch_Switch_Req(_adapter *adapter, union recv_frame *precv_frame)
{
struct sta_info *ptdls_sta= NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
u8 *ptr = precv_frame->u.hdr.rx_data;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
u8 *psa;
sint parsing_length;
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE =3;
u16 j;
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len+LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE+1;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-ETH_TYPE_LEN
-PAYLOAD_TYPE_LEN
-FIXED_IE;
ptdls_sta->off_ch = *(ptr+2);
//parsing information element
for(j=FIXED_IE; j<parsing_length;){
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _COUNTRY_IE_:
break;
case _CH_SWTICH_ANNOUNCE_:
break;
case _LINK_ID_IE_:
break;
case _CH_SWITCH_TIMING_:
_rtw_memcpy(&ptdls_sta->ch_switch_time, pIE->data, 2);
_rtw_memcpy(&ptdls_sta->ch_switch_timeout, pIE->data+2, 2);
default:
break;
}
j += (pIE->Length + 2);
}
//todo: check status
ptdls_sta->stat_code=0;
ptdls_sta->tdls_sta_state |= TDLS_CH_SWITCH_ON_STATE;
issue_nulldata(adapter, NULL, 1, 0, 0);
issue_tdls_ch_switch_rsp(adapter, psa);
DBG_871X("issue tdls channel switch response\n");
if((ptdls_sta->tdls_sta_state & TDLS_CH_SWITCH_ON_STATE) && ptdls_sta->off_ch==pmlmeext->cur_channel){
DBG_871X("back to base channel %x\n", pmlmeext->cur_channel);
ptdls_sta->option=7;
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_BASE_CH);
}else{
ptdls_sta->option=6;
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_OFF_CH);
}
return _FAIL;
}
sint On_TDLS_Ch_Switch_Rsp(_adapter *adapter, union recv_frame *precv_frame)
{
struct sta_info *ptdls_sta= NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
u8 *ptr = precv_frame->u.hdr.rx_data;
struct rx_pkt_attrib *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
u8 *psa;
sint parsing_length;
PNDIS_802_11_VARIABLE_IEs pIE;
u8 FIXED_IE =4;
u16 stat_code, j, switch_time, switch_timeout;
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
psa = get_sa(ptr);
ptdls_sta = rtw_get_stainfo(pstapriv, psa);
//if channel switch is running and receiving Unsolicited TDLS Channel Switch Response,
//it will go back to base channel and terminate this channel switch procedure
if(ptdls_sta->tdls_sta_state & TDLS_CH_SWITCH_ON_STATE ){
if(pmlmeext->cur_channel==ptdls_sta->off_ch){
DBG_871X("back to base channel %x\n", pmlmeext->cur_channel);
ptdls_sta->option=7;
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_OFF_CH);
}else{
DBG_871X("receive unsolicited channel switch response \n");
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_CS_OFF);
}
return _FAIL;
}
//avoiding duplicated or unconditional ch. switch. rsp
if((ptdls_sta->tdls_sta_state & TDLS_CH_SW_INITIATOR_STATE) != TDLS_CH_SW_INITIATOR_STATE)
return _FAIL;
ptr +=prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len+LLC_HEADER_SIZE+TYPE_LENGTH_FIELD_SIZE+1;
parsing_length= ((union recv_frame *)precv_frame)->u.hdr.len
-prx_pkt_attrib->hdrlen
-prx_pkt_attrib->iv_len
-prx_pkt_attrib->icv_len
-LLC_HEADER_SIZE
-ETH_TYPE_LEN
-PAYLOAD_TYPE_LEN
-FIXED_IE;
_rtw_memcpy(&stat_code, ptr+2, 2);
if(stat_code!=0){
return _FAIL;
}
//parsing information element
for(j=FIXED_IE; j<parsing_length;){
pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr+ j);
switch (pIE->ElementID)
{
case _LINK_ID_IE_:
break;
case _CH_SWITCH_TIMING_:
_rtw_memcpy(&switch_time, pIE->data, 2);
if(switch_time > ptdls_sta->ch_switch_time)
_rtw_memcpy(&ptdls_sta->ch_switch_time, &switch_time, 2);
_rtw_memcpy(&switch_timeout, pIE->data+2, 2);
if(switch_timeout > ptdls_sta->ch_switch_timeout)
_rtw_memcpy(&ptdls_sta->ch_switch_timeout, &switch_timeout, 2);
default:
break;
}
j += (pIE->Length + 2);
}
ptdls_sta->tdls_sta_state &= ~(TDLS_CH_SW_INITIATOR_STATE);
ptdls_sta->tdls_sta_state |=TDLS_CH_SWITCH_ON_STATE;
//goto set_channel_workitem_callback()
ptdls_sta->option=6;
rtw_tdls_cmd(adapter, ptdls_sta->hwaddr, TDLS_OFF_CH);
return _FAIL;
}
#ifdef CONFIG_WFD
void wfd_ie_tdls(_adapter * padapter, u8 *pframe, u32 *pktlen )
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct wifi_display_info *pwfd_info = padapter->tdlsinfo.wfd_info;
u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
u32 wfdielen = 0;
// WFD OUI
wfdielen = 0;
wfdie[ wfdielen++ ] = 0x50;
wfdie[ wfdielen++ ] = 0x6F;
wfdie[ wfdielen++ ] = 0x9A;
wfdie[ wfdielen++ ] = 0x0A; // WFA WFD v1.0
// Commented by Albert 20110825
// According to the WFD Specification, the negotiation request frame should contain 3 WFD attributes
// 1. WFD Device Information
// 2. Associated BSSID ( Optional )
// 3. Local IP Adress ( Optional )
// WFD Device Information ATTR
// Type:
wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;
// Length:
// Note: In the WFD specification, the size of length field is 2.
RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
wfdielen += 2;
// Value1:
// WFD device information
// available for WFD session + Preferred TDLS + WSD ( WFD Service Discovery )
RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL
| WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_WSD);
wfdielen += 2;
// Value2:
// Session Management Control Port
// Default TCP port for RTSP messages is 554
RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
wfdielen += 2;
// Value3:
// WFD Device Maximum Throughput
// 300Mbps is the maximum throughput
RTW_PUT_BE16(wfdie + wfdielen, 300);
wfdielen += 2;
// Associated BSSID ATTR
// Type:
wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;
// Length:
// Note: In the WFD specification, the size of length field is 2.
RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
wfdielen += 2;
// Value:
// Associated BSSID
if ( check_fwstate( pmlmepriv, _FW_LINKED) == _TRUE )
{
_rtw_memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
}
else
{
_rtw_memset( wfdie + wfdielen, 0x00, ETH_ALEN );
}
// Local IP Address ATTR
wfdie[ wfdielen++ ] = WFD_ATTR_LOCAL_IP_ADDR;
// Length:
// Note: In the WFD specification, the size of length field is 2.
RTW_PUT_BE16(wfdie + wfdielen, 0x0005);
wfdielen += 2;
// Version:
// 0x01: Version1;IPv4
wfdie[ wfdielen++ ] = 0x01;
// IPv4 Address
_rtw_memcpy( wfdie + wfdielen, pwfd_info->ip_address, 4 );
wfdielen += 4;
pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, pktlen);
}
#endif //CONFIG_WFD
void rtw_build_tdls_setup_req_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct sta_info *ptdls_sta=rtw_get_stainfo( (&padapter->stapriv) , pattrib->dst);
u8 payload_type = 0x02;
u8 category = RTW_WLAN_CATEGORY_TDLS;
u8 action = TDLS_SETUP_REQUEST;
u8 bssrate[NDIS_802_11_LENGTH_RATES_EX]; //Use NDIS_802_11_LENGTH_RATES_EX in order to call func.rtw_set_supported_rate
int bssrate_len = 0, i = 0 ;
u8 more_supportedrates = 0;
unsigned int ie_len;
u8 *p;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 link_id_addr[18] = {0};
u8 iedata=0;
u8 sup_ch[ 30 * 2 ] = {0x00 }, sup_ch_idx = 0, idx_5g = 2; //For supported channel
u8 timeout_itvl[5]; //set timeout interval to maximum value
u32 time;
//SNonce
if(pattrib->encrypt){
for(i=0;i<8;i++){
time=rtw_get_current_time();
_rtw_memcpy(&ptdls_sta->SNonce[4*i], (u8 *)&time, 4);
}
}
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, dialog token
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(ptdls_sta->dialog), &(pattrib->pktlen));
//capability
_rtw_memcpy(pframe, rtw_get_capability_from_ie(pmlmeinfo->network.IEs), 2);
if(pattrib->encrypt)
*pframe =*pframe | BIT(4);
pframe += 2;
pattrib->pktlen += 2;
//supported rates
rtw_set_supported_rate(bssrate, WIRELESS_11BG_24N);
bssrate_len = IEEE80211_CCK_RATE_LEN + IEEE80211_NUM_OFDM_RATESLEN;
if (bssrate_len > 8)
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , 8, bssrate, &(pattrib->pktlen));
more_supportedrates = 1;
}
else
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , bssrate_len , bssrate, &(pattrib->pktlen));
}
//country(optional)
//extended supported rates
if(more_supportedrates==1){
pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_ , (bssrate_len - 8), (bssrate + 8), &(pattrib->pktlen));
}
//supported channels
pframe = rtw_tdls_set_sup_ch(pmlmeext, pframe, pattrib);
// SRC IE
pframe = rtw_set_ie( pframe, _SRC_IE_, 16, TDLS_SRC, &(pattrib->pktlen));
//RSNIE
if(pattrib->encrypt)
pframe = rtw_set_ie(pframe, _RSN_IE_2_, 20, TDLS_RSNIE, &(pattrib->pktlen));
//extended capabilities
pframe = rtw_set_ie(pframe, _EXT_CAP_IE_ , 5, TDLS_EXT_CAPIE, &(pattrib->pktlen));
//QoS capability(WMM_IE)
pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, 7, TDLS_WMMIE, &(pattrib->pktlen));
if(pattrib->encrypt){
//FTIE
_rtw_memset(pframe, 0, 84); //All fields except SNonce shall be set to 0
_rtw_memset(pframe, _FTIE_, 1); //version
_rtw_memset((pframe+1), 82, 1); //length
_rtw_memcpy((pframe+52), ptdls_sta->SNonce, 32);
pframe += 84;
pattrib->pktlen += 84;
//Timeout interval
timeout_itvl[0]=0x02;
_rtw_memcpy(timeout_itvl+1, (u8 *)(&ptdls_sta->TDLS_PeerKey_Lifetime), 4);
pframe = rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, 5, timeout_itvl, &(pattrib->pktlen));
}
//Sup_reg_classes(optional)
//HT capabilities
pframe = rtw_tdls_set_ht_cap(padapter, pframe, pattrib);
//20/40 BSS coexistence
if(pmlmepriv->num_FortyMHzIntolerant>0)
iedata |= BIT(2);//20 MHz BSS Width Request
pframe = rtw_set_ie(pframe, EID_BSSCoexistence, 1, &iedata, &(pattrib->pktlen));
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
#ifdef CONFIG_WFD
wfd_ie_tdls( padapter, pframe, &(pattrib->pktlen) );
#endif //CONFIG_WFD
}
void rtw_build_tdls_setup_rsp_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct sta_info *ptdls_sta;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_SETUP_RESPONSE;
unsigned char bssrate[NDIS_802_11_LENGTH_RATES_EX];
int bssrate_len = 0;
u8 more_supportedrates = 0;
unsigned int ie_len;
unsigned char *p;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 link_id_addr[18] = {0};
u8 iedata=0;
u8 timeout_itvl[5]; //setup response timeout interval will copy from request
u8 ANonce[32]; //maybe it can put in ontdls_req
u8 k; //for random ANonce
u8 *pftie, *ptimeout_ie, *plinkid_ie, *prsnie, *pftie_mic;
u32 time;
ptdls_sta = rtw_get_stainfo( &(padapter->stapriv) , pattrib->dst);
if(ptdls_sta == NULL )
{
DBG_871X("[%s] %d\n", __FUNCTION__, __LINE__);
return;
}
if(pattrib->encrypt){
for(k=0;k<8;k++){
time=rtw_get_current_time();
_rtw_memcpy(&ptdls_sta->ANonce[4*k], (u8*)&time, 4);
}
}
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, status code
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 2, (u8 *)&ptdls_sta->stat_code, &(pattrib->pktlen));
if(ptdls_sta->stat_code!=0) //invalid setup request
{
DBG_871X("ptdls_sta->stat_code:%04x \n", ptdls_sta->stat_code);
return;
}
//dialog token
pframe = rtw_set_fixed_ie(pframe, 1, &(ptdls_sta->dialog), &(pattrib->pktlen));
//capability
_rtw_memcpy(pframe, rtw_get_capability_from_ie(pmlmeinfo->network.IEs), 2);
if(pattrib->encrypt )
*pframe =*pframe | BIT(4);
pframe += 2;
pattrib->pktlen += 2;
//supported rates
rtw_set_supported_rate(bssrate, WIRELESS_11BG_24N);
bssrate_len = IEEE80211_CCK_RATE_LEN + IEEE80211_NUM_OFDM_RATESLEN;
if (bssrate_len > 8)
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , 8, bssrate, &(pattrib->pktlen));
more_supportedrates = 1;
}
else
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , bssrate_len , bssrate, &(pattrib->pktlen));
}
//country(optional)
//extended supported rates
if(more_supportedrates==1){
pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_ , (bssrate_len - 8), (bssrate + 8), &(pattrib->pktlen));
}
//supported channels
pframe = rtw_tdls_set_sup_ch(pmlmeext, pframe, pattrib);
// SRC IE
pframe = rtw_set_ie(pframe, _SRC_IE_ , 16, TDLS_SRC, &(pattrib->pktlen));
//RSNIE
if(pattrib->encrypt){
prsnie = pframe;
pframe = rtw_set_ie(pframe, _RSN_IE_2_, 20, TDLS_RSNIE, &(pattrib->pktlen));
}
//extended capabilities
pframe = rtw_set_ie(pframe, _EXT_CAP_IE_ , 5, TDLS_EXT_CAPIE, &(pattrib->pktlen));
//QoS capability(WMM_IE)
pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, 7, TDLS_WMMIE, &(pattrib->pktlen));
if(pattrib->encrypt){
wpa_tdls_generate_tpk(padapter, ptdls_sta);
//FTIE
pftie = pframe;
pftie_mic = pframe+4;
_rtw_memset(pframe, 0, 84); //All fields except SNonce shall be set to 0
_rtw_memset(pframe, _FTIE_, 1); //version
_rtw_memset((pframe+1), 82, 1); //length
_rtw_memcpy((pframe+20), ptdls_sta->ANonce, 32);
_rtw_memcpy((pframe+52), ptdls_sta->SNonce, 32);
pframe += 84;
pattrib->pktlen += 84;
//Timeout interval
ptimeout_ie = pframe;
timeout_itvl[0]=0x02;
_rtw_memcpy(timeout_itvl+1, (u8 *)(&ptdls_sta->TDLS_PeerKey_Lifetime), 4);
pframe = rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, 5, timeout_itvl, &(pattrib->pktlen));
}
//Sup_reg_classes(optional)
//HT capabilities
pframe = rtw_tdls_set_ht_cap(padapter, pframe, pattrib);
//20/40 BSS coexistence
if(pmlmepriv->num_FortyMHzIntolerant>0)
iedata |= BIT(2);//20 MHz BSS Width Request
pframe = rtw_set_ie(pframe, EID_BSSCoexistence, 1, &iedata, &(pattrib->pktlen));
//Link identifier
plinkid_ie = pframe;
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->dst, 6);
_rtw_memcpy((link_id_addr+12), pattrib->src, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
//fill FTIE mic
if(pattrib->encrypt)
wpa_tdls_ftie_mic(ptdls_sta->tpk.kck, 2, plinkid_ie, prsnie, ptimeout_ie, pftie, pftie_mic);
#ifdef CONFIG_WFD
wfd_ie_tdls( padapter, pframe, &(pattrib->pktlen) );
#endif //CONFIG_WFD
}
void rtw_build_tdls_setup_cfm_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct sta_info *ptdls_sta=rtw_get_stainfo( (&padapter->stapriv) , pattrib->dst);
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_SETUP_CONFIRM;
u8 more_supportedrates = 0;
unsigned int ie_len;
unsigned char *p;
u8 timeout_itvl[5]; //set timeout interval to maximum value
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 link_id_addr[18] = {0};
u8 *pftie, *ptimeout_ie, *plinkid_ie, *prsnie, *pftie_mic;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, status code, dialog token
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 2, (u8 *)&ptdls_sta->stat_code, &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(ptdls_sta->dialog), &(pattrib->pktlen));
if(ptdls_sta->stat_code!=0) //invalid setup request
return;
//RSNIE
if(pattrib->encrypt){
prsnie = pframe;
pframe = rtw_set_ie(pframe, _RSN_IE_2_, 20, TDLS_RSNIE, &(pattrib->pktlen));
}
//EDCA param set; WMM param ele.
if(pattrib->encrypt){
//FTIE
pftie = pframe;
pftie_mic = pframe+4;
_rtw_memset(pframe, 0, 84); //All fields except SNonce shall be set to 0
_rtw_memset(pframe, _FTIE_, 1); //version
_rtw_memset((pframe+1), 82, 1); //length
_rtw_memcpy((pframe+20), ptdls_sta->ANonce, 32);
_rtw_memcpy((pframe+52), ptdls_sta->SNonce, 32);
pframe += 84;
pattrib->pktlen += 84;
//Timeout interval
ptimeout_ie = pframe;
timeout_itvl[0]=0x02;
_rtw_memcpy(timeout_itvl+1, (u8 *)(&ptdls_sta->TDLS_PeerKey_Lifetime), 4);
ptdls_sta->TPK_count=0;
_set_timer(&ptdls_sta->TPK_timer, ptdls_sta->TDLS_PeerKey_Lifetime/TPK_RESEND_COUNT);
pframe = rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, 5, timeout_itvl, &(pattrib->pktlen));
}
//HT operation; todo
//Link identifier
plinkid_ie = pframe;
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
//fill FTIE mic
if(pattrib->encrypt)
wpa_tdls_ftie_mic(ptdls_sta->tpk.kck, 3, plinkid_ie, prsnie, ptimeout_ie, pftie, pftie_mic);
}
void rtw_build_tdls_teardown_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_TEARDOWN;
u8 link_id_addr[18] = {0};
struct sta_info *ptdls_sta = rtw_get_stainfo( &(padapter->stapriv) , pattrib->dst);
struct sta_priv *pstapriv = &padapter->stapriv;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, reason code
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, (u8 *)&ptdls_sta->stat_code, &(pattrib->pktlen));
//Link identifier
if(ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE){
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
}else if(ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE){
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->dst, 6);
_rtw_memcpy((link_id_addr+12), pattrib->src, 6);
}
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
}
void rtw_build_tdls_dis_req_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
u8 payload_type = 0x02;
u8 category = RTW_WLAN_CATEGORY_TDLS;
u8 action = TDLS_DISCOVERY_REQUEST;
u8 link_id_addr[18] = {0};
static u8 dialogtoken=0;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, reason code
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(dialogtoken), &(pattrib->pktlen));
dialogtoken = (dialogtoken+1)%256;
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
}
void rtw_build_tdls_dis_rsp_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe, u8 dialog)
{
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
u8 category = RTW_WLAN_CATEGORY_PUBLIC;
u8 action = TDLS_DISCOVERY_RESPONSE;
u8 bssrate[NDIS_802_11_LENGTH_RATES_EX];
int bssrate_len = 0;
u8 more_supportedrates = 0;
u8 *p;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 link_id_addr[18] = {0};
u8 iedata=0;
u8 timeout_itvl[5]; //set timeout interval to maximum value
u32 timeout_interval= TPK_RESEND_COUNT * 1000;
//category, action, dialog token
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(dialog), &(pattrib->pktlen));
//capability
_rtw_memcpy(pframe, rtw_get_capability_from_ie(pmlmeinfo->network.IEs), 2);
if(pattrib->encrypt)
*pframe =*pframe | BIT(4);
pframe += 2;
pattrib->pktlen += 2;
//supported rates
rtw_set_supported_rate(bssrate, WIRELESS_11BG_24N);
bssrate_len = IEEE80211_CCK_RATE_LEN + IEEE80211_NUM_OFDM_RATESLEN;
if (bssrate_len > 8)
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , 8, bssrate, &(pattrib->pktlen));
more_supportedrates = 1;
}
else
{
pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , bssrate_len , bssrate, &(pattrib->pktlen));
}
//extended supported rates
if(more_supportedrates==1){
pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_ , (bssrate_len - 8), (bssrate + 8), &(pattrib->pktlen));
}
//supported channels
pframe = rtw_tdls_set_sup_ch(pmlmeext, pframe, pattrib);
//RSNIE
if(pattrib->encrypt)
pframe = rtw_set_ie(pframe, _RSN_IE_2_, 20, TDLS_RSNIE, &(pattrib->pktlen));
//extended capability
pframe = rtw_set_ie(pframe, _EXT_CAP_IE_ , 5, TDLS_EXT_CAPIE, &(pattrib->pktlen));
if(pattrib->encrypt){
//FTIE
_rtw_memset(pframe, 0, 84); //All fields shall be set to 0
_rtw_memset(pframe, _FTIE_, 1); //version
_rtw_memset((pframe+1), 82, 1); //length
pframe += 84;
pattrib->pktlen += 84;
//Timeout interval
timeout_itvl[0]=0x02;
_rtw_memcpy(timeout_itvl+1, &timeout_interval, 4);
pframe = rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, 5, timeout_itvl, &(pattrib->pktlen));
}
//Sup_reg_classes(optional)
//HT capabilities
pframe = rtw_tdls_set_ht_cap(padapter, pframe, pattrib);
//20/40 BSS coexistence
if(pmlmepriv->num_FortyMHzIntolerant>0)
iedata |= BIT(2);//20 MHz BSS Width Request
pframe = rtw_set_ie(pframe, EID_BSSCoexistence, 1, &iedata, &(pattrib->pktlen));
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->dst, 6);
_rtw_memcpy((link_id_addr+12), pattrib->src, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
}
void rtw_build_tdls_peer_traffic_indication_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_PEER_TRAFFIC_INDICATION;
u8 link_id_addr[18] = {0};
u8 AC_queue=0;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *ptdls_sta = rtw_get_stainfo(pstapriv, pattrib->dst);
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, reason code
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(ptdls_sta->dialog), &(pattrib->pktlen));
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
//PTI control
//PU buffer status
if(ptdls_sta->uapsd_bk&BIT(1))
AC_queue=BIT(0);
if(ptdls_sta->uapsd_be&BIT(1))
AC_queue=BIT(1);
if(ptdls_sta->uapsd_vi&BIT(1))
AC_queue=BIT(2);
if(ptdls_sta->uapsd_vo&BIT(1))
AC_queue=BIT(3);
pframe = rtw_set_ie(pframe, _PTI_BUFFER_STATUS_, 1, &AC_queue, &(pattrib->pktlen));
}
void rtw_build_tdls_ch_switch_req_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_CHANNEL_SWITCH_REQUEST;
u8 link_id_addr[18] = {0};
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *ptdls_sta = rtw_get_stainfo(pstapriv, pattrib->dst);
u8 ch_switch_timing[4] = {0};
u16 switch_time= CH_SWITCH_TIME, switch_timeout=CH_SWITCH_TIMEOUT;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, target_ch
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(ptdlsinfo->candidate_ch), &(pattrib->pktlen));
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
//ch switch timing
_rtw_memcpy(ch_switch_timing, &switch_time, 2);
_rtw_memcpy(ch_switch_timing+2, &switch_timeout, 2);
pframe = rtw_set_ie(pframe, _CH_SWITCH_TIMING_, 4, ch_switch_timing, &(pattrib->pktlen));
//update ch switch attrib to sta_info
ptdls_sta->off_ch=ptdlsinfo->candidate_ch;
ptdls_sta->ch_switch_time=switch_time;
ptdls_sta->ch_switch_timeout=switch_timeout;
}
void rtw_build_tdls_ch_switch_rsp_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
u8 payload_type = 0x02;
unsigned char category = RTW_WLAN_CATEGORY_TDLS;
unsigned char action = TDLS_CHANNEL_SWITCH_RESPONSE;
u8 link_id_addr[18] = {0};
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *ptdls_sta = rtw_get_stainfo(pstapriv, pattrib->dst);
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
u8 ch_switch_timing[4] = {0};
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, action, status_code
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 2, (u8 *)&ptdls_sta->stat_code, &(pattrib->pktlen));
//Link identifier
_rtw_memcpy(link_id_addr, pattrib->ra, 6);
_rtw_memcpy((link_id_addr+6), pattrib->src, 6);
_rtw_memcpy((link_id_addr+12), pattrib->dst, 6);
pframe = rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
//ch switch timing
_rtw_memcpy(ch_switch_timing, &ptdls_sta->ch_switch_time, 2);
_rtw_memcpy(ch_switch_timing+2, &ptdls_sta->ch_switch_timeout, 2);
pframe = rtw_set_ie(pframe, _CH_SWITCH_TIMING_, 4, ch_switch_timing, &(pattrib->pktlen));
}
#ifdef CONFIG_WFD
void rtw_build_tunneled_probe_req_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct wifidirect_info *pwdinfo = &padapter->wdinfo;
struct wifidirect_info *pbuddy_wdinfo = &padapter->pbuddy_adapter->wdinfo;
u8 payload_type = 0x02;
u8 category = RTW_WLAN_CATEGORY_P2P;
u8 WFA_OUI[3] = { 0x50, 0x6f, 0x9a};
u8 probe_req = 4;
u8 wfdielen = 0;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, OUI, frame_body_type
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 3, WFA_OUI, &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(probe_req), &(pattrib->pktlen));
if(!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
{
wfdielen = build_probe_req_wfd_ie(pwdinfo, pframe);
pframe += wfdielen;
pattrib->pktlen += wfdielen;
}
else if(!rtw_p2p_chk_state(pbuddy_wdinfo, P2P_STATE_NONE))
{
wfdielen = build_probe_req_wfd_ie(pbuddy_wdinfo, pframe);
pframe += wfdielen;
pattrib->pktlen += wfdielen;
}
}
void rtw_build_tunneled_probe_rsp_ies(_adapter * padapter, struct xmit_frame * pxmitframe, u8 *pframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct wifidirect_info *pwdinfo = &padapter->wdinfo;
struct wifidirect_info *pbuddy_wdinfo = &padapter->pbuddy_adapter->wdinfo;
u8 payload_type = 0x02;
u8 category = RTW_WLAN_CATEGORY_P2P;
u8 WFA_OUI[3] = { 0x50, 0x6f, 0x9a};
u8 probe_rsp = 5;
u8 wfdielen = 0;
//payload type
pframe = rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
//category, OUI, frame_body_type
pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 3, WFA_OUI, &(pattrib->pktlen));
pframe = rtw_set_fixed_ie(pframe, 1, &(probe_rsp), &(pattrib->pktlen));
if(!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
{
wfdielen = build_probe_resp_wfd_ie(pwdinfo, pframe, 1);
pframe += wfdielen;
pattrib->pktlen += wfdielen;
}
else if(!rtw_p2p_chk_state(pbuddy_wdinfo, P2P_STATE_NONE))
{
wfdielen = build_probe_resp_wfd_ie(pbuddy_wdinfo, pframe, 1);
pframe += wfdielen;
pattrib->pktlen += wfdielen;
}
}
#endif //CONFIG_WFD
void _TPK_timer_hdl(void *FunctionContext)
{
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
ptdls_sta->TPK_count++;
//TPK_timer set 1000 as default
//retry timer should set at least 301 sec.
if(ptdls_sta->TPK_count==TPK_RESEND_COUNT){
ptdls_sta->TPK_count=0;
issue_tdls_setup_req(ptdls_sta->padapter, ptdls_sta->hwaddr);
}
_set_timer(&ptdls_sta->TPK_timer, ptdls_sta->TDLS_PeerKey_Lifetime/TPK_RESEND_COUNT);
}
void init_TPK_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->TPK_timer, padapter->pnetdev, _TPK_timer_hdl, psta);
}
// TDLS_DONE_CH_SEN: channel sensing and report candidate channel
// TDLS_OFF_CH: first time set channel to off channel
// TDLS_BASE_CH: when go back to the channel linked with AP, send null data to peer STA as an indication
void _ch_switch_timer_hdl(void *FunctionContext)
{
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
_adapter *padapter = ptdls_sta->padapter;
if( ptdls_sta->option == TDLS_DONE_CH_SEN ){
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_DONE_CH_SEN);
}else if( ptdls_sta->option == TDLS_OFF_CH ){
issue_nulldata_to_TDLS_peer_STA(ptdls_sta->padapter, ptdls_sta, 0);
_set_timer(&ptdls_sta->base_ch_timer, 500);
}else if( ptdls_sta->option == TDLS_BASE_CH){
issue_nulldata_to_TDLS_peer_STA(ptdls_sta->padapter, ptdls_sta, 0);
}
}
void init_ch_switch_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->option_timer, padapter->pnetdev, _ch_switch_timer_hdl, psta);
}
void _base_ch_timer_hdl(void *FunctionContext)
{
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
rtw_tdls_cmd(ptdls_sta->padapter, ptdls_sta->hwaddr, TDLS_P_OFF_CH);
}
void init_base_ch_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->base_ch_timer, padapter->pnetdev, _base_ch_timer_hdl, psta);
}
void _off_ch_timer_hdl(void *FunctionContext)
{
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
rtw_tdls_cmd(ptdls_sta->padapter, ptdls_sta->hwaddr, TDLS_P_BASE_CH );
}
void init_off_ch_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->off_ch_timer, padapter->pnetdev, _off_ch_timer_hdl, psta);
}
void _tdls_handshake_timer_hdl(void *FunctionContext)
{
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
if(ptdls_sta != NULL)
{
if( !(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE) )
{
DBG_871X("tdls handshake time out\n");
free_tdls_sta(ptdls_sta->padapter, ptdls_sta);
}
}
}
void init_handshake_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->handshake_timer, padapter->pnetdev, _tdls_handshake_timer_hdl, psta);
}
//Check tdls peer sta alive.
void _tdls_alive_timer_phase1_hdl(void *FunctionContext)
{
_irqL irqL;
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
_adapter *padapter = ptdls_sta->padapter;
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
_enter_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
ptdls_sta->timer_flag = 1;
_exit_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
ptdls_sta->tdls_sta_state &= (~TDLS_ALIVE_STATE);
DBG_871X("issue_tdls_dis_req to check alive\n");
issue_tdls_dis_req( padapter, ptdls_sta->hwaddr);
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_CKALV_PH1);
sta_update_last_rx_pkts(ptdls_sta);
if ( ptdls_sta->timer_flag == 2 )
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_FREE_STA);
else
{
_enter_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
ptdls_sta->timer_flag = 0;
_exit_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
}
}
void _tdls_alive_timer_phase2_hdl(void *FunctionContext)
{
_irqL irqL;
struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
_adapter *padapter = ptdls_sta->padapter;
struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
_enter_critical_bh(&(ptdlsinfo->hdl_lock), &irqL);
ptdls_sta->timer_flag = 1;
_exit_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
if( (ptdls_sta->tdls_sta_state & TDLS_ALIVE_STATE) &&
(sta_last_rx_pkts(ptdls_sta) + 3 <= sta_rx_pkts(ptdls_sta)) )
{
DBG_871X("TDLS STA ALIVE, ptdls_sta->sta_stats.last_rx_pkts:%llu, ptdls_sta->sta_stats.rx_pkts:%llu\n",
sta_last_rx_pkts(ptdls_sta), sta_rx_pkts(ptdls_sta));
ptdls_sta->alive_count = 0;
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_CKALV_PH2);
}
else
{
if( !(ptdls_sta->tdls_sta_state & TDLS_ALIVE_STATE) )
DBG_871X("TDLS STA TOO FAR\n");
if( !(sta_last_rx_pkts(ptdls_sta) + 3 <= sta_rx_pkts(ptdls_sta)))
DBG_871X("TDLS LINK WITH LOW TRAFFIC, ptdls_sta->sta_stats.last_rx_pkts:%llu, ptdls_sta->sta_stats.rx_pkts:%llu\n",
sta_last_rx_pkts(ptdls_sta), sta_rx_pkts(ptdls_sta));
ptdls_sta->alive_count++;
if( ptdls_sta->alive_count == TDLS_ALIVE_COUNT )
{
ptdls_sta->stat_code = _RSON_TDLS_TEAR_TOOFAR_;
issue_tdls_teardown(padapter, ptdls_sta->hwaddr);
}
else
{
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_CKALV_PH2);
}
}
if ( ptdls_sta->timer_flag == 2 )
rtw_tdls_cmd(padapter, ptdls_sta->hwaddr, TDLS_FREE_STA);
else
{
_enter_critical_bh(&(ptdlsinfo->hdl_lock), &irqL);
ptdls_sta->timer_flag = 0;
_exit_critical_bh(&ptdlsinfo->hdl_lock, &irqL);
}
}
void init_tdls_alive_timer(_adapter *padapter, struct sta_info *psta)
{
psta->padapter=padapter;
_init_timer(&psta->alive_timer1, padapter->pnetdev, _tdls_alive_timer_phase1_hdl, psta);
_init_timer(&psta->alive_timer2, padapter->pnetdev, _tdls_alive_timer_phase2_hdl, psta);
}
int update_sgi_tdls(_adapter *padapter, struct sta_info *psta)
{
struct ht_priv *psta_ht = NULL;
psta_ht = &psta->htpriv;
if(psta_ht->ht_option)
{
return psta_ht->sgi;
}
else
return _FALSE;
}
u32 update_mask_tdls(_adapter *padapter, struct sta_info *psta)
{
int i;
u8 rf_type, id;
unsigned char sta_band = 0;
unsigned char limit;
unsigned int tx_ra_bitmap=0;
struct ht_priv *psta_ht = NULL;
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
WLAN_BSSID_EX *pcur_network = (WLAN_BSSID_EX *)&pmlmepriv->cur_network.network;
psta_ht = &psta->htpriv;
//b/g mode ra_bitmap
for (i=0; i<sizeof(psta->bssrateset); i++)
{
if (psta->bssrateset[i])
tx_ra_bitmap |= rtw_get_bit_value_from_ieee_value(psta->bssrateset[i]&0x7f);
}
//n mode ra_bitmap
if(psta_ht->ht_option)
{
padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
if(rf_type == RF_2T2R)
limit=16;// 2R
else
limit=8;// 1R
for (i=0; i<limit; i++) {
if (psta_ht->ht_cap.supp_mcs_set[i/8] & BIT(i%8))
tx_ra_bitmap |= BIT(i+12);
}
}
if ( pcur_network->Configuration.DSConfig > 14 ) {
// 5G band
if (tx_ra_bitmap & 0xffff000)
sta_band |= WIRELESS_11_5N | WIRELESS_11A;
else
sta_band |= WIRELESS_11A;
} else {
if (tx_ra_bitmap & 0xffff000)
sta_band |= WIRELESS_11_24N | WIRELESS_11G | WIRELESS_11B;
else if (tx_ra_bitmap & 0xff0)
sta_band |= WIRELESS_11G |WIRELESS_11B;
else
sta_band |= WIRELESS_11B;
}
//id = networktype_to_raid(sta_band);
id = rtw_hal_networktype_to_raid(padapter,sta_band);
tx_ra_bitmap |= ((id<<28)&0xf0000000);
return tx_ra_bitmap;
}
#endif //CONFIG_TDLS
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