Could I connect user's session bus from root?
tornadory at 163.com
Wed May 12 18:48:16 PDT 2010
Thanks all of you, I'll try it now.
在2010-05-13 00:26:45，"Thiago Macieira" <thiago at kde.org> 写道：
>Em Quarta-feira 12 Maio 2010, às 18:02:10, Rémi Denis-Courmont escreveu:
>> Le mercredi 12 mai 2010 14:04:40 Thiago Macieira, vous avez écrit :
>> > Em Quarta-feira 12. Maio 2010, às 12.13.06, danny escreveu:
>> > > Dear All,
>> > >
>> > > I have a program run as root, but I need get information from GVFS
>> > > which is on the session bus, and it shows "failed to connect the
>> > > session bus" while I run the test program, and it could not get any
>> > > information from the GVFS.
>> > >
>> > > Could I access the session bus in my "root" program?
>> > No.
>> > The user's session bus requires the user's UID. Your program needs to
>> > drop privileges before connecting.
>> I think, in principles, the root process could just set its effective UID
>> to the user, while establishing the DBus connection, then back to root. It
>> does not need to drop the root privileges.
>Well, setting the EUID is dropping the privileges, even if you can still take
>them back later :-)
>Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
> Senior Product Manager - Nokia, Qt Development Frameworks
> PGP/GPG: 0x6EF45358; fingerprint:
> E067 918B B660 DBD1 105C 966C 33F5 F005 6EF4 5358
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