diff options
| author | Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> | 2020-07-23 14:01:53 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-07-31 09:27:01 +0200 |
| commit | cb17ed29a7a5fea8c9bf70e8a05757d71650e025 (patch) | |
| tree | eb7201c4056fb1ebe7f32bf33e60ef398e41076f /include/net | |
| parent | 08aca29aa8b18dec2e84bc97d27dabe133b75822 (diff) | |
mac80211: parse radiotap header when selecting Tx queue
Already parse the radiotap header in ieee80211_monitor_select_queue.
In a subsequent commit this will allow us to add a radiotap flag that
influences the queue on which injected packets will be sent.
This also fixes the incomplete validation of the injected frame in
ieee80211_monitor_select_queue: currently an out of bounds memory
access may occur in in the called function ieee80211_select_queue_80211
if the 802.11 header is too small.
Note that in ieee80211_monitor_start_xmit the radiotap header is parsed
again, which is necessairy because ieee80211_monitor_select_queue is not
always called beforehand.
Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be>
Link: https://lore.kernel.org/r/20200723100153.31631-6-Mathy.Vanhoef@kuleuven.be
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mac80211.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 21ce821a25e7..6e26f0ba6fd0 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -6239,6 +6239,14 @@ bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw, int band, struct ieee80211_sta **sta); /** + * Sanity-check and parse the radiotap header of injected frames + * @skb: packet injected by userspace + * @dev: the &struct device of this 802.11 device + */ +bool ieee80211_parse_tx_radiotap(struct sk_buff *skb, + struct net_device *dev); + +/** * struct ieee80211_noa_data - holds temporary data for tracking P2P NoA state * * @next_tsf: TSF timestamp of the next absent state change |