mac80211_hwsim: Update timestamp in Probe Response frames
Previously, this was done only for Beacon frames, but similar timestamp
update is needed for Probe Response frames to make these more accurately
match the real IEEE 802.11 behavior. Previously, all zeros timestamp was
sent in Probe Response frames.
Change-Id: I541c0114b14b8c42b609ce1e699f49a7be07cf4b
(cherry picked from commit 732b5395efd05e79f546b59d6aa02653608bfe03)
Signed-off-by: Jouni Malinen <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 0cfce74..d721a60 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -860,6 +860,7 @@
{
struct mac80211_hwsim_data *data = hw->priv;
struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr *hdr = (void *)skb->data;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_channel *channel;
bool ack;
@@ -905,6 +906,22 @@
ARRAY_SIZE(txi->control.rates));
txi->rate_driver_data[0] = channel;
+
+ if (skb->len >= 24 + 8 &&
+ ieee80211_is_probe_resp(hdr->frame_control)) {
+ /* fake header transmission time */
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_rate *txrate;
+ u64 ts;
+
+ mgmt = (struct ieee80211_mgmt *)skb->data;
+ txrate = ieee80211_get_tx_rate(hw, txi);
+ ts = mac80211_hwsim_get_tsf_raw();
+ mgmt->u.probe_resp.timestamp =
+ cpu_to_le64(ts + data->tsf_offset +
+ 24 * 8 * 10 / txrate->bitrate);
+ }
+
mac80211_hwsim_monitor_rx(hw, skb, channel);
/* wmediumd mode check */
