diff options
| author | Ryder Lee <ryder.lee@mediatek.com> | 2025-09-23 17:23:22 +0000 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-10-27 09:16:23 +0100 |
| commit | a392cde88d19af917740d27e13115447d3b21a06 (patch) | |
| tree | abb59ce2c1e5cff529ea11db5451e3da37fc6ac4 /include | |
| parent | 428ea708b714ba09c96da5722fb1c8b86af509d1 (diff) | |
wifi: cfg80211/mac80211: validate radio frequency range for monitor mode
In multi-radio devices, it is possible to have an MLD AP and a monitor
interface active at the same time. In such cases, monitor mode may not
be able to specify a fixed channel and could end up capturing frames
from all radios, including those outside the intended frequency bands.
This patch adds frequency validation for monitor mode. Received frames
are now only processed if their frequency fall within the allowed ranges
of the radios specified by the interface's radio_mask.
This prevents monitor mode from capturing frames outside the supported radio.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://patch.msgid.link/700b8284e845d96654eb98431f8eeb5a81503862.1758647858.git.ryder.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/cfg80211.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 781624f5913a..3b6f48a783bb 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1015,6 +1015,7 @@ const struct cfg80211_chan_def * cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, const struct cfg80211_chan_def *chandef2); + /** * nl80211_chan_width_to_mhz - get the channel width in MHz * @chan_width: the channel width from &enum nl80211_chan_width @@ -6883,6 +6884,19 @@ static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan) } /** + * ieee80211_radio_freq_range_valid - Check if the radio supports the + * specified frequency range + * + * @radio: wiphy radio + * @freq: the frequency (in KHz) to be queried + * @width: the bandwidth (in KHz) to be queried + * + * Return: whether or not the given frequency range is valid for the given radio + */ +bool ieee80211_radio_freq_range_valid(const struct wiphy_radio *radio, + u32 freq, u32 width); + +/** * cfg80211_radio_chandef_valid - Check if the radio supports the chandef * * @radio: wiphy radio |