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Do not place signal strength into radiotap header if this information is not available

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This commit is contained in:
Sergei Makarenkov 2016-12-18 19:54:27 +03:00
parent 621f9a4ff9
commit bc5369d4b3
1 changed files with 16 additions and 12 deletions
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28
core/rtw_recv.c
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@ -4007,7 +4007,7 @@ static sint fill_radiotap_hdr(_adapter *padapter, union recv_frame *precvframe,
rtap_hdr = (struct ieee80211_radiotap_header *)&hdr_buf[0];
rtap_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
if(pHalData->NumTotalRFPath>0) {
if(pHalData->NumTotalRFPath>0 && pattrib->physt) {
rtap_hdr->it_present |= (1<<IEEE80211_RADIOTAP_EXT) |
(1<<IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE);
@ -4109,10 +4109,11 @@ static sint fill_radiotap_hdr(_adapter *padapter, union recv_frame *precvframe,
memcpy(&hdr_buf[rt_len], &tmp_16bit, 2);
rt_len += 2;
/* dBm Antenna Signal */
rtap_hdr->it_present |= (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
hdr_buf[rt_len] = pattrib->phy_info.RecvSignalPower;
rt_len += 1;
if(pattrib->physt) {
/* dBm Antenna Signal */
rtap_hdr->it_present |= (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
hdr_buf[rt_len] = pattrib->phy_info.RecvSignalPower;
rt_len += 1;
#if 0
/* dBm Antenna Noise */
@ -4121,7 +4122,9 @@ static sint fill_radiotap_hdr(_adapter *padapter, union recv_frame *precvframe,
rt_len += 1;
#endif
rt_len++; // alignment
rt_len++; // alignment
}
/* Signal Quality */
rtap_hdr->it_present |= (1 << IEEE80211_RADIOTAP_LOCK_QUALITY);
tmp_16bit = cpu_to_le16(pattrib->phy_info.SignalQuality);
@ -4240,13 +4243,14 @@ static sint fill_radiotap_hdr(_adapter *padapter, union recv_frame *precvframe,
rt_len += 2;
}
for(i=0; i<pHalData->NumTotalRFPath; i++) {
hdr_buf[rt_len] = pattrib->phy_info.RxPwr[i];
rt_len ++;
hdr_buf[rt_len] = i;
rt_len ++;
if (pattrib->physt) {
for(i=0; i<pHalData->NumTotalRFPath; i++) {
hdr_buf[rt_len] = pattrib->phy_info.RxPwr[i];
rt_len ++;
hdr_buf[rt_len] = i;
rt_len ++;
}
}
/* push to skb */
pskb = (_pkt *)buf;
if (skb_headroom(pskb) < rt_len) {