On 10-09-14 16:15, Arend van Spriel wrote: > On 09/10/14 13:10, Jouni Malinen wrote: >> On Wed, Sep 10, 2014 at 09:30:05AM +0200, Arend van Spriel wrote: >>> I am running some tests on a haswell target with Android KitKat >>> (3.10.20 kernel). In this configuration our brcmfmac driver is used >>> with driver param 'p2p_device=1'. So we end up with wlan0 and >>> p2p-dev-wlan0 interfaces (can blame myself for that). The >>> configuration has a network configured, but I did not expect >>> wpa_supplicant to start association using the p2p device interface. >>> The wlan0 interface is already connected to the AP. How can I fix >>> this to assure p2p-dev-wlan0 is only used for p2p management >>> scenarios. >> >> Hmm.. Can you please show the wpa_supplicant command line that is used >> here and describe how that network block gets configured for the >> p2p-dev-wlan0 "interface"? I would have expected that there would never >> be a configuration with an enabled network block being passed for the >> P2P management interface.. Internally, wpa_supplicant should not add >> such for P2P groups, but I don't think there is any filtering on >> configuration if something is externally trying to make wpa_supplicant >> use that management interface for a station mode connection. > > Hi Jouni, > > Jithu informed me about the '-m' command line option so digging in git > revision history I found the commit from Ilan which kind of describes > what I am seeing > > c16a759 wpa_supplicant: Add a configuration file for the P2P_DEVICE > parameters > > Here is p2p_supplicant service instantiating the wpa_supplicant. > > service p2p_supplicant /system/bin/wpa_supplicant -Dnl80211 -iwlan0 \ > -g@android:wpa_wlan0 -c/data/misc/wifi/p2p_supplicant.conf -dt > > The p2p_supplicant.conf has update_config=1 set which is also mentioned > in the commit message. Without -m option p2p-dev-wlan0 is created using > the same config file as for wlan0 so some filtering would be required > (or use -m). Although the -m may work it feels somewhat awkward. My idea behind the P2P_DEVICE functionality was to have simpler command line with just the primary interface and a single configuration file. With that in mind I created a patch filtering the networks so they do not get enabled for the P2P_DEVICE interface. That seems to be working, but I will do some more testing with it. Regards, Arend -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
