** Description changed: There are situations where I have multiple APs (living on separate networks) in range simultaneously and I need to be able to manually choose between them (to manually move between those separate networks). To handle this, I have multiple wpa_supplicant config files for each of the APs, and I use logical interfaces in /etc/network/interfaces to select the appropriate config file. For example: iface public inet manual - wpa-conf /etc/wpa_supplicant/public.conf + wpa-conf /etc/wpa_supplicant/public.conf iface private inet manual - wpa-conf /etc/wpa_supplicant/private.conf + wpa-conf /etc/wpa_supplicant/private.conf To select the appropriate AP, I simply run `ifup wlan0=public` or `ifup wlan0=private`. This part works fine. However, I would like to change the "wpa-conf" lines in the above example to use "wpa-roam" instead, so I can also handle roaming in conjunction with multiple wpa_supplicant config files. Unfortunately this doesn't work. When the "master" interface is already using a logical interface in /etc/network/interfaces, wpa-roam fails to load the logical interface specified by id_str. The problem is that the ifup() function in functions.sh runs `grep -q "^$WPA_IFACE=$WPA_IFACE" "$IFSTATE_FILE"` to determine if the interface is already up, then runs /sbin/ifup either with or without '--force' depending on whether the interface is "up". If the "master" interface is defined in /etc/network/interfaces as a logical interface rather than a physical interface, then grep will not match, '--force' will not be used, and /sbin/ifup will fail because the interface is already configured and '--force' was not used. The attached patch fixes this issue by running `ifquery` to determine - whether the physical interface is currently up and configured as a - wpasupplicant "master" interface, and will run /sbin/ifup with '--force' - even if the "master" interface is a logical interface in - /etc/network/interfaces. If the physical interface is already up but is - not configured as a "master" interface, then it is likely we received - two "CONNECT" events without a "DISCONNECT" between them, so `ifdown` is - run on the old logical interface before `ifup` is run on the new one. + whether the physical interface is currently configured as a + wpasupplicant "master" interface and needs the '--force' argument to + /sbin/ifup.
** Attachment added: "patch" https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1545363/+attachment/4572525/+files/patch ** Patch removed: "patch" https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1545363/+attachment/4571280/+files/patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to wpa in Ubuntu. https://bugs.launchpad.net/bugs/1545363 Title: wpa-roam does not support logical "master" interfaces Status in wpa package in Ubuntu: New Bug description: There are situations where I have multiple APs (living on separate networks) in range simultaneously and I need to be able to manually choose between them (to manually move between those separate networks). To handle this, I have multiple wpa_supplicant config files for each of the APs, and I use logical interfaces in /etc/network/interfaces to select the appropriate config file. For example: iface public inet manual wpa-conf /etc/wpa_supplicant/public.conf iface private inet manual wpa-conf /etc/wpa_supplicant/private.conf To select the appropriate AP, I simply run `ifup wlan0=public` or `ifup wlan0=private`. This part works fine. However, I would like to change the "wpa-conf" lines in the above example to use "wpa-roam" instead, so I can also handle roaming in conjunction with multiple wpa_supplicant config files. Unfortunately this doesn't work. When the "master" interface is already using a logical interface in /etc/network/interfaces, wpa-roam fails to load the logical interface specified by id_str. The problem is that the ifup() function in functions.sh runs `grep -q "^$WPA_IFACE=$WPA_IFACE" "$IFSTATE_FILE"` to determine if the interface is already up, then runs /sbin/ifup either with or without ' --force' depending on whether the interface is "up". If the "master" interface is defined in /etc/network/interfaces as a logical interface rather than a physical interface, then grep will not match, '--force' will not be used, and /sbin/ifup will fail because the interface is already configured and '--force' was not used. The attached patch fixes this issue by running `ifquery` to determine whether the physical interface is currently configured as a wpasupplicant "master" interface and needs the '--force' argument to /sbin/ifup. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1545363/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
