Re: how to handle ACL to access modem ?

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On Wed, Oct 7, 2009 at 18:40, Frederic Crozat <fcrozat@xxxxxxxxxxxx> wrote:
> Le mercredi 29 juillet 2009 à 13:41 +0200, Frederic Crozat a écrit :
>> Hi all,
>>
>> we just switched Mandriva cooker permissions on device from pam_console
>> + HAL ACL to udev ACL.
>>
>> And now, we are starting to discover some regressions ;)
>>
>> Before the switch /dev/ttyACM* was given console privilege, allowing
>> usage of programs like gammu (and its derivative) to access phones
>> through their modem interface.
>>
>> With the switch, it is not possible anymore and I'm not sure which path
>> is better (if we can find one which is cross-distro) :
>> - add users to dialout group : can't be done while users is logged,
>> doesn't handle upgrade, hard to find for users
>> - setgid programs like gammu for dialout : no action for users needed
>> but any user (even without console privilege) will gain access to those
>> devices
>> - ACL on ttyACM* : no action for users needed, give the same kind of
>> access control as pam_console was giving. On the other hand, any
>> "console" user will be able to dialout the device.
>>
>> Opinions ?
>
> No opinions ?

I don't think we want random software to be able to dial out.

Kay
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