Aegis and changing system time problem

[s60dev]

Hi all!

I'm trying to set system time using MeeGo::QmTime::setTime(), but it required a timed::TimeControl resource token. Unfortunately aegis doesn't allow it at installation time:

Package myapp: denied 'timed::TimeControl' -- origin '' does not allow it
Package myapp: denied 'timed::TimeControl' for '/opt/myapp/bin/myapp' -- origin '' does not allow it

As a result setTime() doesn't work without that token, it always return zero (false).

SDK's help documentation and aegis configuration on the real device are different.

So is there any way to set system time from my own code?

[gnuton]

Hi,
What about opening the clock setting panel?

All the classes/functions which need the stricken out tokens listed at [1] will most probably be removed from documentation.

[1] http://www.developer.nokia.com/Commu...ecurity_Tokens

[s60dev]

What about opening the clock setting panel?

As I said above I'm trying to change system time from my code. Programmatically.

All the classes/functions which need the stricken out tokens listed at [1] will most probably be removed from documentation.

timed::TimeControl resource token is in that list. Does that means that there is no way to set system time from my own code, programmatically?
What is the point to include in SDK the API which can not be actually used?

Maybe there is another API which able to change system date/time on MeeGo, and which will really work?

[gnuton]

You should be able to set the time using http://linux.die.net/man/7/time

[s60dev]

I'll try it, thanks.

[asheesh_sri]

Hi s60dev, did you figure out how to set the time on MeeGo. I got into same situation and hoping if you could provide some inputs.

[gnuton]

If you want to change the time, you can use http://linux.die.net/man/2/settimeofday or showing the clock page

[A.A.M.]

So is there any properly working way to set system time with normal "user" rights (not under user named "developer")?

Unfortunately an official documentation doesn't provide correct information regarding this issue.

[aflegg]

Have a look at the script output by this, it uses devel-su, but checks for the appropriate permission (IIRC). It then uses 'date', as I haven't had chance to switch to the proper API yet:

http://www.maemopeople.org/index.php...tinuous_clock_

[A.A.M.]

I assume it's not proper way, because devtools isn't installed out of the box. Or I misunderstood an idea?

[aflegg]

It's the presence and checking of CAP::sys_time from the output of accli -I which I think might be relevant.

[izinin]

Hi

I think you need proper capability set declaration in aegis:

<aegis>
     <request>
       <credential name="CAP::sys_time" />
       <for path="/usr/bin/foobar" />
     </request>
   </aegis>

The CAP_SYS_TIME capability allows a process to modify the system time. For Harmattan security guide please check this

Then i think setTime() should work

[A.A.M.]

Checked, credential "CAP::sys_time" declared but unfortunately setting time function(s) doesn't work with normal user rights (under "developer" it works).

[izinin]

ok ,

Even if you request a credential for the application that is available in the system, the credential is not necessarily granted. The reason for this is software source origin. Software source origin is a security policy term that defines available capability set. for "CAP::sys_time" you need OVI source origin. please check that for details.
another point is the file shall be installed into the target Harmattan device by package manager. So i conclude if you publish your app on Store it should work with normal user rights. That can be checked. At least you will get more information on strong capability use from Store QA team.

[A.A.M.]

Interesting. Thanks for clarification.