[Dextrose] How does "Modem Configuration" feature work in dextrose-builds-without-gnome?

[David Farning]

On Fri, Nov 4, 2011 at 3:06 PM, Martin Abente
<martin.abente.lahaye at gmail.com> wrote:
> Hello!
>
> On Fri, Nov 4, 2011 at 1:10 PM, Ajay Garg <ajaygargnsit at gmail.com> 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 http://wiki.sugarlabs.org/go/Features/3G_Support
> for more detailed information.
>
>>
>> (Thanks Anish, for pointing me to Martin.)
>>
>>
>> Regards,
>> Ajay
>>
>>
>>
>
>
> _______________________________________________
> Dextrose mailing list
> Dextrose at lists.sugarlabs.org
> http://lists.sugarlabs.org/listinfo/dextrose
>
>