Example #1
0
void rtw_get_bcn_info(struct wlan_network *pnetwork)
{
	unsigned short cap = 0;
	u8 bencrypt = 0;
	/* u8 wpa_ie[255], rsn_ie[255]; */
	u16 wpa_len = 0, rsn_len = 0;
	struct HT_info_element *pht_info = NULL;
	struct ieee80211_ht_cap *pht_cap = NULL;
	unsigned int		len;
	unsigned char 	*p;
	__le16 le_cap;

	memcpy((u8 *)&le_cap, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
	cap = le16_to_cpu(le_cap);
	if (cap & WLAN_CAPABILITY_PRIVACY) {
		bencrypt = 1;
		pnetwork->network.Privacy = 1;
	} else {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
	}
	rtw_get_sec_ie(pnetwork->network.IEs , pnetwork->network.IELength, NULL,&rsn_len, NULL,&wpa_len);
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));

	if (rsn_len > 0) {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
	} else if (wpa_len > 0) {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
	} else {
		if (bencrypt)
			pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
	}
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
				pnetwork->BcnInfo.encryp_protocol));
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
				pnetwork->BcnInfo.encryp_protocol));
	rtw_get_cipher_info(pnetwork);

	/* get bwmode and ch_offset */
	/* parsing HT_CAP_IE */
	p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
	if (p && len>0) {
			pht_cap = (struct ieee80211_ht_cap *)(p + 2);
			pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info);
	} else {
			pnetwork->BcnInfo.ht_cap_info = 0;
	}
	/* parsing HT_INFO_IE */
	p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
	if (p && len>0) {
			pht_info = (struct HT_info_element *)(p + 2);
			pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
	} else {
			pnetwork->BcnInfo.ht_info_infos_0 = 0;
	}
}
Example #2
0
void rtw_get_bcn_info(struct wlan_network *pnetwork)
{
	unsigned short cap = 0;
	uint8_t bencrypt = 0;
	//uint8_t wpa_ie[255],rsn_ie[255];
	u16 wpa_len=0,rsn_len=0;
	struct HT_info_element *pht_info = NULL;
	struct rtw_ieee80211_ht_cap *pht_cap = NULL;
	unsigned int		len;
	unsigned char		*p;

	memcpy((uint8_t *)&cap, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
	cap = le16_to_cpu(cap);
	if (cap & WLAN_CAPABILITY_PRIVACY) {
		bencrypt = 1;
		pnetwork->network.Privacy = 1;
	} else {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
	}
	rtw_get_sec_ie(pnetwork->network.IEs ,pnetwork->network.IELength,NULL,&rsn_len,NULL,&wpa_len);

	if (rsn_len > 0) {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
	} else if (wpa_len > 0) {
		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
	} else {
		if (bencrypt)
			pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
	}
	rtw_get_cipher_info(pnetwork);

	/* get bwmode and ch_offset */
	/* parsing HT_CAP_IE */
	p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
	if(p && len>0) {
			pht_cap = (struct rtw_ieee80211_ht_cap *)(p + 2);
			pnetwork->BcnInfo.ht_cap_info = pht_cap->cap_info;
	} else {
			pnetwork->BcnInfo.ht_cap_info = 0;
	}
	/* parsing HT_INFO_IE */
	p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
	if(p && len>0) {
			pht_info = (struct HT_info_element *)(p + 2);
			pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
	} else {
			pnetwork->BcnInfo.ht_info_infos_0 = 0;
	}
}
Example #3
0
void ConstructBeacon(_adapter *padapter, u8 *pframe, u32 *pLength)
{
	struct rtw_ieee80211_hdr	*pwlanhdr;
	u16					*fctrl;
	u32					rate_len, pktlen;
	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
	WLAN_BSSID_EX 		*cur_network = &(pmlmeinfo->network);
	u8	bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};


	//DBG_871X("%s\n", __FUNCTION__);

	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;	

	fctrl = &(pwlanhdr->frame_ctl);
	*(fctrl) = 0;
	
	_rtw_memcpy(pwlanhdr->addr1, bc_addr, ETH_ALEN);
	_rtw_memcpy(pwlanhdr->addr2, myid(&(padapter->eeprompriv)), ETH_ALEN);
	_rtw_memcpy(pwlanhdr->addr3, get_my_bssid(cur_network), ETH_ALEN);

	SetSeqNum(pwlanhdr, 0/*pmlmeext->mgnt_seq*/);

	SetFrameSubType(pframe, WIFI_BEACON);
	
	pframe += sizeof(struct rtw_ieee80211_hdr_3addr);	
	pktlen = sizeof (struct rtw_ieee80211_hdr_3addr);
	
	//timestamp will be inserted by hardware
	pframe += 8;
	pktlen += 8;

	// beacon interval: 2 bytes
	_rtw_memcpy(pframe, (unsigned char *)(rtw_get_beacon_interval_from_ie(cur_network->IEs)), 2); 

	pframe += 2;
	pktlen += 2;

	// capability info: 2 bytes
	_rtw_memcpy(pframe, (unsigned char *)(rtw_get_capability_from_ie(cur_network->IEs)), 2);

	pframe += 2;
	pktlen += 2;


	if( (pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE)
	{
		DBG_871X("ie len=%u\n", cur_network->IELength);
		pktlen += cur_network->IELength - sizeof(NDIS_802_11_FIXED_IEs);
		_rtw_memcpy(pframe, cur_network->IEs+sizeof(NDIS_802_11_FIXED_IEs), pktlen);
		
		goto _ConstructBeacon;
	}

	//below for ad-hoc mode

	// SSID
	pframe = rtw_set_ie(pframe, _SSID_IE_, cur_network->Ssid.SsidLength, cur_network->Ssid.Ssid, &pktlen);

	// supported rates...
	rate_len = rtw_get_rateset_len(cur_network->SupportedRates);
	pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_, ((rate_len > 8)? 8: rate_len), cur_network->SupportedRates, &pktlen);

	// DS parameter set
	pframe = rtw_set_ie(pframe, _DSSET_IE_, 1, (unsigned char *)&(cur_network->Configuration.DSConfig), &pktlen);

	if( (pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE)
	{
		u32 ATIMWindow;
		// IBSS Parameter Set...
		//ATIMWindow = cur->Configuration.ATIMWindow;
		ATIMWindow = 0;
		pframe = rtw_set_ie(pframe, _IBSS_PARA_IE_, 2, (unsigned char *)(&ATIMWindow), &pktlen);
	}	


	//todo: ERP IE
	
	
	// EXTERNDED SUPPORTED RATE
	if (rate_len > 8)
	{
		pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_, (rate_len - 8), (cur_network->SupportedRates + 8), &pktlen);
	}


	//todo:HT for adhoc

_ConstructBeacon:

	if ((pktlen + TXDESC_SIZE) > 512)
	{
		DBG_871X("beacon frame too large\n");
		return;
	}

	*pLength = pktlen;

	//DBG_871X("%s bcn_sz=%u\n", __FUNCTION__, pktlen);

}