<div class="gmail_quote">On Sat, Nov 5, 2011 at 12:37 AM, Ajay Garg <<a href="mailto:ajay@sugarlabs.org">ajay@sugarlabs.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Thanks Martin for the reply. Ok, so I believe the gsm connection is instantiated when the gsm-connection-device is detected, which in turn makes use of the "Modem Configuration" settings. </blockquote><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> So, a. Disabling "usr/sbin/modem-manager" (where present) will prevent modem-connection instantiated in a gnome environment. (Already verified). b. I have the following query: ------------------------------------- For disabling gsm connection in a sugar-environment, will the following two customizations suffice ? : (i) changing the method from version-1 to version-2 (in sugar/extensions/deviceicon/network.py) ===================================================================================== version-1 ======== def _check_device(self, device_op): nm_device = self._bus.get_object(_NM_SERVICE, device_op) props = dbus.Interface(nm_device, dbus.PROPERTIES_IFACE) device_type = props.Get(_NM_DEVICE_IFACE, 'DeviceType') if device_type == network.DEVICE_TYPE_802_3_ETHERNET: device = WiredDeviceObserver(nm_device, self._tray) self._devices[device_op] = device elif device_type == network.DEVICE_TYPE_802_11_WIRELESS: device = WirelessDeviceObserver(nm_device, self._tray) self._devices[device_op] = device elif device_type == network.DEVICE_TYPE_802_11_OLPC_MESH: device = MeshDeviceObserver(nm_device, self._tray) self._devices[device_op] = device elif device_type == network.DEVICE_TYPE_GSM_MODEM: device = GsmDeviceObserver(nm_device, self._tray) self._devices[device_op] = device ======================================================================================================== version-2 ======= def _check_device(self, device_op): nm_device = self._bus.get_object(_NM_SERVICE, device_op) props = dbus.Interface(nm_device, dbus.PROPERTIES_IFACE) device_type = props.Get(_NM_DEVICE_IFACE, 'DeviceType') if device_type == network.DEVICE_TYPE_802_3_ETHERNET: pass elif device_type == network.DEVICE_TYPE_802_11_WIRELESS: device = WirelessDeviceObserver(nm_device, self._tray) self._devices[device_op] = device elif device_type == network.DEVICE_TYPE_802_11_OLPC_MESH: pass elif device_type == network.DEVICE_TYPE_GSM_MODEM: pass ============================================================================================================= Note : Disabling ETHERNET and OLPC_MESH are not related as such to gsm configuration; they are not needed for afghanistan-deployments. (ii) Removing "Modem Configuration" from Control Panel (this will turn redundant, due to (i) above, so it will be good to remove any non-useful feature) (Actually, just allowing wireless-network-device-recognition, and not recognising other-network-devices-recognition (at the OS level), might be the cleanest, root-level solution. udev might help; still figuring out ..) </blockquote><div> both (together) will work fine, at least from sugar's GUI pov. Just keep in mind that is a "superficial" solution. </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Regards, Ajay <div><div></div><div class="h5"> On Sat, Nov 5, 2011 at 2:43 AM, David Farning <<a href="mailto:dfarning@activitycentral.com">dfarning@activitycentral.com</a>> wrote: > > On Fri, Nov 4, 2011 at 3:06 PM, Martin Abente > <<a href="mailto:martin.abente.lahaye@gmail.com">martin.abente.lahaye@gmail.com</a>> wrote: > > Hello! > > > > On Fri, Nov 4, 2011 at 1:10 PM, Ajay Garg <<a href="mailto:ajaygargnsit@gmail.com">ajaygargnsit@gmail.com</a>> wrote: > >> > >> Hi Martin. > >> > >> I have been working on making custom changes for Afghanistan deployments; > >> disabling 3G access is one of them. > >> > > > > Interesting, whenever you have the time I would like to hear the reason > > behind that decision. I am curious :) > > The build is for a socially conservative region in Afghanistan. The > teachers in the region want to make sure that all internet > connectivity happens via a school server. > > david > > >> As the resolution for this, the permissions for "usr/sbin/modem-manager" > >> have been set to 0000, and the change tested on a f14 image with gnome. > >> Following were the test cases that were carried out : > >> > >> a. Checked if "ps -aux | grep "modem-manager" gave anything. > >> It didn't, as expected. > >> b. Although the option to add a new modem connection via GUI was available > >> through nm-applet; however no connection could actually be instantiated in > >> practise, as expected. > >> > >> > >> I then moved on to checking on dextrose-builds-without-gnome (f11 based) > >> > >> It was found that there is no "/usr/sbin/modem-manager" on > >> dextrose-builds-without-gnome (although "usr/sbin/NetworkManager" was > >> present) > > > > I think there was no modem-manager integration back in NM 0.7 (the one > > available for f11). > > > >> > >> > >> > >> So, my queries are :: > >> > >> 1. How does the "Modem Configuration" feature work in > >> dextrose-build-without-gnome? > >> This is important, as additional customization may need to be done to > >> disable all 3G access attempts. > >> > > > > It is because of NM architecture, at least until version 0.7+, the "settings > > management" service was implemented inside nm-applet, and since there is no > > nm-applet in sugar, sugar implements its own "settings management" service > > (take a look at ...source/sugar/src/jarabe/model/network.py to see the > > implementation). > > > > That implementation uses custom gconf values (different from gnome ones) to > > store the 3G/GSM setting (note that only stores 1 setting for 3G/GSM). > > > > Because of what I just explained, there is no relation between gnome and > > sugar settings (for 3G/GSM and WIFI). > > > >> 2. Is it possible to have a (3G) modem connection in > >> dextrose-build-without-gnome at all? > >> > > > > Yes (I just explained why). > > > >> > >> Looking forward to a reply. > >> > > > > No problem, take a look at <a href="http://wiki.sugarlabs.org/go/Features/3G_Support" target="_blank">http://wiki.sugarlabs.org/go/Features/3G_Support</a> > > for more detailed information. > > > >> > >> (Thanks Anish, for pointing me to Martin.) > >> > >> > >> Regards, > >> Ajay > >> > >> > >> > > > > > > _______________________________________________ > > Dextrose mailing list > > <a href="mailto:Dextrose@lists.sugarlabs.org">Dextrose@lists.sugarlabs.org</a> > > <a href="http://lists.sugarlabs.org/listinfo/dextrose" target="_blank">http://lists.sugarlabs.org/listinfo/dextrose</a> > > > > </div></div></blockquote></div>