Re: Setting "RoamingAllowed" on by default; or storing persistently

Re: Setting "RoamingAllowed" on by default; or storing persistently

[Denis Kenzior]

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Hi Tarmo,

On 7/24/19 9:15 AM, Tarmo Kuuse wrote:
> Hi!
> 
> I'd like for my device to automatically connect to 3G data in roaming 
> wherever the GSM network permits it. I'd very much like to set this up 
> as default during manufacturing regardless of the SIM inserted. ofono 
> version 1.21 (debian buster).

Isn't this quite old?  I think we're up to 1.29 and we don't do releases 
that often these days...

> 
> I can tell ofono to enable roaming manually - either via the config file 
> (e.g. /var/lib/ofono/248030010014875/gprs) or dbus interface (e.g. 
> dbus-send --system --print-reply --dest=org.ofono /quectel_0 
> org.ofono.ConnectionManager.SetProperty string:"RoamingAllowed" 
> variant:boolean:true), but it does not seem to be stored persistently. 
> After a reboot ofono has disabled roaming again and the config file 
> holds "RoamingAllowed=0".

If the method call is successful, then RoamingAllowed should be updated 
on disk.  E.g. see src/gprs.c, we invoke storage_sync() right after 
updating it.

Perhaps try running strace on ofonod and see why this fails?

> 
> So my questions are:
> 1. can I set up ofono to always permit data connections in roaming?

Not at the moment.  oFono never had a concept of a main configuration 
file.  But perhaps something like that could be introduced specifically 
for this use case...

> 2. if not, can I at least store RoamingAllowed persistently per SIM card?
> 

This should already work...

> As context: working on a 3G-equipped gateway device, factory-installed 
> with a roaming-enabled SIM card and typically shipped to a foreign 
> country (mostly within EU where data roaming incurs no penalty). It's 
> rather desirable that 3G comes online without requiring any setup 
> whatsoever once the gateway is powered on in destination country.
> 

Regards,
-Denis

Re: Setting "RoamingAllowed" on by default; or storing persistently

[Denis Kenzior]

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Hi Tarmo,

>>> 2. if not, can I at least store RoamingAllowed persistently per SIM 
>>> card?
>>
>> This should already work...
> 
> Thank you for the quick reply. I'll begin by upgrading ofono to see if 
> the persistence starts to work for me.
> 

I would doubt it.  The code in question has been in there way before 
version 1.1.  Either your system is somehow strange (e.g. perhaps the fs 
is not writable) or we have a bug somewhere...

Regards,
-Denis

Setting "RoamingAllowed" on by default; or storing persistently

[Tarmo Kuuse]

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Hi!

I'd like for my device to automatically connect to 3G data in roaming 
wherever the GSM network permits it. I'd very much like to set this up 
as default during manufacturing regardless of the SIM inserted. ofono 
version 1.21 (debian buster).

I can tell ofono to enable roaming manually - either via the config file 
(e.g. /var/lib/ofono/248030010014875/gprs) or dbus interface (e.g. 
dbus-send --system --print-reply --dest=org.ofono /quectel_0 
org.ofono.ConnectionManager.SetProperty string:"RoamingAllowed" 
variant:boolean:true), but it does not seem to be stored persistently. 
After a reboot ofono has disabled roaming again and the config file 
holds "RoamingAllowed=0".

So my questions are:
1. can I set up ofono to always permit data connections in roaming?
2. if not, can I at least store RoamingAllowed persistently per SIM card?

As context: working on a 3G-equipped gateway device, factory-installed 
with a roaming-enabled SIM card and typically shipped to a foreign 
country (mostly within EU where data roaming incurs no penalty). It's 
rather desirable that 3G comes online without requiring any setup 
whatsoever once the gateway is powered on in destination country.

-- 
Kind regards
Tarmo Kuuse

Re: Setting "RoamingAllowed" on by default; or storing persistently

[Tarmo Kuuse]

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Hi Denis,

On 24.07.19 02:23, Denis Kenzior wrote:
>> I'd like for my device to automatically connect to 3G data in roaming 
>> wherever the GSM network permits it. I'd very much like to set this up 
>> as default during manufacturing regardless of the SIM inserted. ofono 
>> version 1.21 (debian buster).
> 
> Isn't this quite old?  I think we're up to 1.29 and we don't do releases 
> that often these days...

Yes, the package maintainer seems to be erring on the side of caution.

>> I can tell ofono to enable roaming manually - either via the config 
>> file (e.g. /var/lib/ofono/248030010014875/gprs) or dbus interface 
>> (e.g. dbus-send --system --print-reply --dest=org.ofono /quectel_0 
>> org.ofono.ConnectionManager.SetProperty string:"RoamingAllowed" 
>> variant:boolean:true), but it does not seem to be stored persistently. 
>> After a reboot ofono has disabled roaming again and the config file 
>> holds "RoamingAllowed=0".
> 
> If the method call is successful, then RoamingAllowed should be updated 
> on disk.  E.g. see src/gprs.c, we invoke storage_sync() right after 
> updating it.
> 
> Perhaps try running strace on ofonod and see why this fails?

Sounds logical to me, thank you for confirming.

>> So my questions are:
>> 1. can I set up ofono to always permit data connections in roaming?
> 
> Not at the moment.  oFono never had a concept of a main configuration 
> file.  But perhaps something like that could be introduced specifically 
> for this use case...

I heartily agree.

>> 2. if not, can I at least store RoamingAllowed persistently per SIM card?
> 
> This should already work...

Thank you for the quick reply. I'll begin by upgrading ofono to see if 
the persistence starts to work for me.

-- 
Kind regards
Tarmo Kuuse