On 11/24/2012 12:22 PM, Mohammed Shafi wrote:
On Fri, Nov 23, 2012 at 4:16 PM, Wojciech Dubowik
<Wojciech.Dubowik@xxxxxxxxxxx> wrote:
As an exmaple of vendor specific data we can extract rssi
and evm values for all the chains so one can see them on
per packet basis. More can be added depending on the needs i.e.
noise floor, Ness, STBC, key miss, etc.
AtheorsC OUI is used in this example but it should be replaced
by own when in use.
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/recv.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 6aafbb7..02c36c4 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1246,6 +1246,39 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx == 3)
ath_ant_comb_scan(sc, &rs);
+#if 0
please remove ifdefs .
I guess radiotap can bring quite some overhead so myabe instead of
ifdefs I could
implement sysfs entry to enable/disable it? Could be also used to switch
needed
fields suggested by Johannes.
+ /*TODO: Replace oui and vendor sub namespace with valid data
+ * and add/remove fields below
+ */
+ if( skb_headroom(skb) > 22 ) {
+ int8_t* vendor_data;
we can use s8 ?
Will do.
+
+ vendor_data = skb_push(skb, 22);
+
+ rxs->vendor_radiotap_len = 22;
+ rxs->vendor_radiotap_align = 4;
+ rxs->vendor_radiotap_oui[0] = 0x0;
+ rxs->vendor_radiotap_oui[1] = 0x3;
+ rxs->vendor_radiotap_oui[2] = 0x7f;
+ rxs->vendor_radiotap_subns = 0;
+ rxs->vendor_radiotap_bitmap = 0x00000001;
+
+ /* count bytes below and put it as the length*/
+ *vendor_data++ = rs.rs_rssi;
+ *vendor_data++ = rs.rs_rssi_ctl0;
+ *vendor_data++ = rs.rs_rssi_ctl1;
+ *vendor_data++ = rs.rs_rssi_ctl2;
+ put_unaligned_le32(rs.evm0, vendor_data);
+ vendor_data += 4;
+ put_unaligned_le32(rs.evm1, vendor_data);
+ vendor_data += 4;
+ put_unaligned_le32(rs.evm2, vendor_data);
+ vendor_data += 4;
+ put_unaligned_le32(rs.evm3, vendor_data);
+ vendor_data += 4;
+ put_unaligned_le16(rs.evm4, vendor_data);
+ }
+#endif
would be nice check this stuff in sniffer.
You mean dissect it?
ieee80211_rx(hw, skb);
requeue_drop_frag:
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
