Ejemplo n.º 1
0
void
TsInitDelBA( struct ieee80211_device *ieee, PTS_COMMON_INFO pTsCommonInfo, TR_SELECT TxRxSelect)
{

	if(TxRxSelect == TX_DIR) {
		PTX_TS_RECORD	pTxTs = (PTX_TS_RECORD)pTsCommonInfo;

		if(TxTsDeleteBA(ieee, pTxTs))
			ieee80211_send_DELBA(
				ieee,
				pTsCommonInfo->Addr,
				(pTxTs->TxAdmittedBARecord.bValid)?(&pTxTs->TxAdmittedBARecord):(&pTxTs->TxPendingBARecord),
				TxRxSelect,
				DELBA_REASON_END_BA);
	}
	else if(TxRxSelect == RX_DIR) {
		PRX_TS_RECORD	pRxTs = (PRX_TS_RECORD)pTsCommonInfo;
		if(RxTsDeleteBA(ieee, pRxTs))
			ieee80211_send_DELBA(
				ieee,
				pTsCommonInfo->Addr,
				&pRxTs->RxAdmittedBARecord,
				TxRxSelect,
				DELBA_REASON_END_BA	);
	}
}
Ejemplo n.º 2
0
void TxBaInactTimeout(unsigned long data)
{
	PTX_TS_RECORD	pTxTs = (PTX_TS_RECORD)data;
	struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[pTxTs->num]);
	TxTsDeleteBA(ieee, pTxTs);
	ieee80211_send_DELBA(
		ieee,
		pTxTs->TsCommonInfo.Addr,
		&pTxTs->TxAdmittedBARecord,
		TX_DIR,
		DELBA_REASON_TIMEOUT);
}
void RxBaInactTimeout(unsigned long data)
{
	PRX_TS_RECORD	pRxTs = (PRX_TS_RECORD)data;
	struct ieee80211_device *ieee = container_of(pRxTs, struct ieee80211_device, RxTsRecord[pRxTs->num]);

	RxTsDeleteBA(ieee, pRxTs);
	ieee80211_send_DELBA(
		ieee,
		pRxTs->TsCommonInfo.Addr,
		&pRxTs->RxAdmittedBARecord,
		RX_DIR,
		DELBA_REASON_TIMEOUT);
	return ;
}
Ejemplo n.º 4
0
/********************************************************************************************************************
 *function: RX ADDBARSP
 *   input:  struct sk_buff *   skb	//incoming ADDBAReq skb.
 *  return:  0(pass), other(fail)
 *  notice:  As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
 ********************************************************************************************************************/
int ieee80211_rx_ADDBARsp(struct ieee80211_device *ieee, struct sk_buff *skb)
{
	 struct rtl_80211_hdr_3addr *rsp = NULL;
	PBA_RECORD		pPendingBA, pAdmittedBA;
	PTX_TS_RECORD		pTS = NULL;
	u8 *dst = NULL, *pDialogToken = NULL, *tag = NULL;
	u16 *pStatusCode = NULL, *pBaTimeoutVal = NULL;
	PBA_PARAM_SET		pBaParamSet = NULL;
	u16			ReasonCode;

	if (skb->len < sizeof(struct rtl_80211_hdr_3addr) + 9) {
		IEEE80211_DEBUG(IEEE80211_DL_ERR,
				" Invalid skb len in BARSP(%d / %zu)\n",
				skb->len,
				(sizeof(struct rtl_80211_hdr_3addr) + 9));
		return -1;
	}
	rsp = (struct rtl_80211_hdr_3addr *)skb->data;
	tag = (u8 *)rsp;
	dst = &rsp->addr2[0];
	tag += sizeof(struct rtl_80211_hdr_3addr);
	pDialogToken = tag + 2;
	pStatusCode = (u16 *)(tag + 3);
	pBaParamSet = (PBA_PARAM_SET)(tag + 5);
	pBaTimeoutVal = (u16 *)(tag + 7);

	// Check the capability
	// Since we can always receive A-MPDU, we just check if it is under HT mode.
	if (ieee->current_network.qos_data.active == 0  ||
	    !ieee->pHTInfo->bCurrentHTSupport ||
	    !ieee->pHTInfo->bCurrentAMPDUEnable) {
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "reject to ADDBA_RSP as some capability is not ready(%d, %d, %d)\n",ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport, ieee->pHTInfo->bCurrentAMPDUEnable);
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}


	//
	// Search for related TS.
	// If there is no TS found, we wil reject ADDBA Rsp by sending DELBA frame.
	//
	if (!GetTs(
			ieee,
			(PTS_COMMON_INFO *)(&pTS),
			dst,
			(u8)(pBaParamSet->field.TID),
			TX_DIR,
			false)	) {
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS in %s()\n", __func__);
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}

	pTS->bAddBaReqInProgress = false;
	pPendingBA = &pTS->TxPendingBARecord;
	pAdmittedBA = &pTS->TxAdmittedBARecord;


	//
	// Check if related BA is waiting for setup.
	// If not, reject by sending DELBA frame.
	//
	if (pAdmittedBA->bValid) {
		// Since BA is already setup, we ignore all other ADDBA Response.
		IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. Drop because already admit it! \n");
		return -1;
	}
	else if((!pPendingBA->bValid) ||(*pDialogToken != pPendingBA->DialogToken)) {
		IEEE80211_DEBUG(IEEE80211_DL_ERR,  "OnADDBARsp(): Recv ADDBA Rsp. BA invalid, DELBA! \n");
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}
	else {
		IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. BA is admitted! Status code:%X\n", *pStatusCode);
		DeActivateBAEntry(ieee, pPendingBA);
	}


	if(*pStatusCode == ADDBA_STATUS_SUCCESS) {
		//
		// Determine ADDBA Rsp content here.
		// We can compare the value of BA parameter set that Peer returned and Self sent.
		// If it is OK, then admitted. Or we can send DELBA to cancel BA mechanism.
		//
		if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
			// Since this is a kind of ADDBA failed, we delay next ADDBA process.
			pTS->bAddBaReqDelayed = true;
			DeActivateBAEntry(ieee, pAdmittedBA);
			ReasonCode = DELBA_REASON_END_BA;
			goto OnADDBARsp_Reject;
		}


		//
		// Admitted condition
		//
		pAdmittedBA->DialogToken = *pDialogToken;
		pAdmittedBA->BaTimeoutValue = *pBaTimeoutVal;
		pAdmittedBA->BaStartSeqCtrl = pPendingBA->BaStartSeqCtrl;
		pAdmittedBA->BaParamSet = *pBaParamSet;
		DeActivateBAEntry(ieee, pAdmittedBA);
		ActivateBAEntry(ieee, pAdmittedBA, *pBaTimeoutVal);
	}
	else {
		// Delay next ADDBA process.
		pTS->bAddBaReqDelayed = true;
	}

	// End of procedure
	return 0;

OnADDBARsp_Reject:
	{
		BA_RECORD	BA;
		BA.BaParamSet = *pBaParamSet;
		ieee80211_send_DELBA(ieee, dst, &BA, TX_DIR, ReasonCode);
		return 0;
	}

}
int ieee80211_rx_ADDBARsp( struct ieee80211_device* ieee, struct sk_buff *skb)
{
	 struct ieee80211_hdr_3addr* rsp = NULL;
	PBA_RECORD		pPendingBA, pAdmittedBA;
	PTX_TS_RECORD		pTS = NULL;
	u8* dst = NULL, *pDialogToken = NULL, *tag = NULL;
	u16* pStatusCode = NULL, *pBaTimeoutVal = NULL;
	PBA_PARAM_SET		pBaParamSet = NULL;
	u16			ReasonCode;

	if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9)
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BARSP(%d / %zu)\n", skb->len, 	(sizeof( struct ieee80211_hdr_3addr) + 9));
		return -1;
	}
	rsp = ( struct ieee80211_hdr_3addr*)skb->data;
	tag = (u8*)rsp;
	dst = (u8*)(&rsp->addr2[0]);
	tag += sizeof( struct ieee80211_hdr_3addr);
	pDialogToken = tag + 2;
	pStatusCode = (u16*)(tag + 3);
	pBaParamSet = (PBA_PARAM_SET)(tag + 5);
	pBaTimeoutVal = (u16*)(tag + 7);

	//                     
	//                                                                          
	if(     ieee->current_network.qos_data.active == 0  ||
		ieee->pHTInfo->bCurrentHTSupport == false ||
		ieee->pHTInfo->bCurrentAMPDUEnable == false )
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "reject to ADDBA_RSP as some capability is not ready(%d, %d, %d)\n",ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport, ieee->pHTInfo->bCurrentAMPDUEnable);
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}


	//
	//                       
	//                                                                         
	//
	if (!GetTs(
			ieee,
			(PTS_COMMON_INFO*)(&pTS),
			dst,
			(u8)(pBaParamSet->field.TID),
			TX_DIR,
			false)	)
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS in %s()\n", __FUNCTION__);
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}

	pTS->bAddBaReqInProgress = false;
	pPendingBA = &pTS->TxPendingBARecord;
	pAdmittedBA = &pTS->TxAdmittedBARecord;


	//
	//                                          
	//                                       
	//
	if((pAdmittedBA->bValid==true))
	{
		//                                                               
		IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. Drop because already admit it! \n");
		return -1;
	}
	else if((pPendingBA->bValid == false) ||(*pDialogToken != pPendingBA->DialogToken))
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR,  "OnADDBARsp(): Recv ADDBA Rsp. BA invalid, DELBA! \n");
		ReasonCode = DELBA_REASON_UNKNOWN_BA;
		goto OnADDBARsp_Reject;
	}
	else
	{
		IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. BA is admitted! Status code:%X\n", *pStatusCode);
		DeActivateBAEntry(ieee, pPendingBA);
	}


	if(*pStatusCode == ADDBA_STATUS_SUCCESS)
	{
		//
		//                                  
		//                                                                               
		//                                                                         
		//
		if(pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED)
		{
			//                                                                   
			pTS->bAddBaReqDelayed = true;
			DeActivateBAEntry(ieee, pAdmittedBA);
			ReasonCode = DELBA_REASON_END_BA;
			goto OnADDBARsp_Reject;
		}


		//
		//                   
		//
		pAdmittedBA->DialogToken = *pDialogToken;
		pAdmittedBA->BaTimeoutValue = *pBaTimeoutVal;
		pAdmittedBA->BaStartSeqCtrl = pPendingBA->BaStartSeqCtrl;
		pAdmittedBA->BaParamSet = *pBaParamSet;
		DeActivateBAEntry(ieee, pAdmittedBA);
		ActivateBAEntry(ieee, pAdmittedBA, *pBaTimeoutVal);
	}
	else
	{
		//                          
		pTS->bAddBaReqDelayed = true;
	}

	//                 
	return 0;

OnADDBARsp_Reject:
	{
		BA_RECORD	BA;
		BA.BaParamSet = *pBaParamSet;
		ieee80211_send_DELBA(ieee, dst, &BA, TX_DIR, ReasonCode);
		return 0;
	}

}