| Message ID | 1385480718-13702-1-git-send-email-sw@simonwunderlich.de (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Tue, 2013-11-26 at 16:45 +0100, Simon Wunderlich wrote: > When external CSA IEs are received (beacons or action messages), a > channel switch is triggered as well. This should only be allowed on > devices which actually support channel switches, otherwise disconnect. > (For the corresponding userspace invocation, the wiphy flag is checked > in nl80211). Applied. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 0f1fb5d..2eda7b1 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -823,6 +823,10 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata, if (err) return false; + /* channel switch is not supported, disconnect */ + if (!(sdata->local->hw.wiphy->flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) + goto disconnect; + params.count = csa_ie.count; params.chandef = csa_ie.chandef;
When external CSA IEs are received (beacons or action messages), a channel switch is triggered as well. This should only be allowed on devices which actually support channel switches, otherwise disconnect. (For the corresponding userspace invocation, the wiphy flag is checked in nl80211). Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> --- net/mac80211/ibss.c | 4 ++++ 1 file changed, 4 insertions(+)