Freeman Liu wrote:
> Gary Winiger wrote:
>>> Yes. Visibility and stability of /dev/dsp will be promoted in the
>>> following phases.
>>>
>>>
>>>> When you say that only the root user can access /dev/dsp, do you mean
>>>> to say that the underlying device file is owned by root and has
>>>> permission 600? Or does the device's driver make explicit permission
>>>> checks?
>>>>
>>>>
>>>>
>>> It is owned by root and has permission 600.
>>>
>>
>> What suid 0 programs are required that are not present in S10?
>>
> I am not sure if I understand you correct. I guess you think that
> since the 600 permission, there must
> be some suid 0 applications to use it. Actually, there is no such
> applications, this file will only be
> used by sadasupport. We make the permission 600 to avoid normal users
> to open it.
> Correct me if I misunderstand you.
If its only used internally, there was a way (IIRC) to create a
"ddi-internal-pathname" so that only in-kernel components could see the
node. I forgot the actual call, but IIRC the keyboard/mouse code on
SPARC does this.
That might be a preferable solution, or at least worth investigation.
-- Garrett
>
> Best regards
> Freeman
>> Gary..
>>
>
