2022-01-13 09:00:12

by JaeMan Park

[permalink] [raw]
Subject: [PATCH] mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work

In mac80211_hwsim, the probe_req frame is created and sent while
scanning. It is sent with ieee80211_tx_info which is not initialized.
Uninitialized ieee80211_tx_info can cause problems when using
mac80211_hwsim with wmediumd. wmediumd checks the tx_rates field of
ieee80211_tx_info and doesn't relay probe_req frame to other clients
even if it is a broadcasting message.

Call ieee80211_tx_prepare_skb() to initialize ieee80211_tx_info for
the probe_req that is created by hw_scan_work in mac80211_hwsim.

Signed-off-by: JaeMan Park <[email protected]>
drivers/net/wireless/mac80211_hwsim.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 0307a6677907..95f1e4899231 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2336,6 +2336,13 @@ static void hw_scan_work(struct work_struct *work)
if (req->ie_len)
skb_put_data(probe, req->ie, req->ie_len);

+ if (!ieee80211_tx_prepare_skb(hwsim->hw,
+ hwsim->hw_scan_vif,
+ probe,
+ hwsim->tmp_chan->band,
+ NULL))
+ continue;
mac80211_hwsim_tx_frame(hwsim->hw, probe,