Hi Raphaël, On Wed, Mar 29, 2023 at 03:44:53PM +0200, Raphaël Mélotte wrote: > From: Felix Fietkau <nbd@xxxxxxxx> > > Although it is currently possible to have an AP (i.e. hostapd) and a STA > (i.e. wpa_supplicant) interface running simultaneously on the same > radio, this has severe limitations: > > - If the AP is enabled first, the STA can only associate on the same > channel that was configured by the AP. > - Once the STA is connected and the AP is enabled, it is no longer > possible to switch channels. Thus, if the BSS to which the STA is > associated switches channels, the connection is lost. Isn't the issue you describe more a shortcoming of the wireless driver rather than hostapd/wpa_supplicant? The driver is able to notify hostapd of a channel switch on the AP interface, which might happen if a STA sharing the same radio got connected. Some fullmac drivers behave this way and I think it is correct. hostapd also handles it more or less OK. Here is a quite old commit which does something to that effect: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c4f7863eae6f580a0373cbd8dc2731d082570e69 Did you consider doing something like this? I know it is not easy to update all the drivers in the kernel... Kind regards, Alvin _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
