mac80211: add radiotap flag to prevent sequence number overwrite
The radiotap specification contains a flag to indicate that the sequence
number of an injected frame should not be overwritten. Parse this flag
and define and set a corresponding Tx control flag.
Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be>
Link: https://lore.kernel.org/r/20200723100153.31631-2-Mathy.Vanhoef@kuleuven.be
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 007e070..4133450 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2085,6 +2085,8 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
txflags = get_unaligned_le16(iterator.this_arg);
if (txflags & IEEE80211_RADIOTAP_F_TX_NOACK)
info->flags |= IEEE80211_TX_CTL_NO_ACK;
+ if (txflags & IEEE80211_RADIOTAP_F_TX_NOSEQNO)
+ info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO;
break;
case IEEE80211_RADIOTAP_RATE: