hi Lennart,

I mean the DBUS property.

root@demoboard:/# busctl set-property org.freedesktop.DBus 
/org/freedesktop/DBus org.freedesktop.DBus Features as 1 x

Cannot set read-only property         -- the default




root@demoboard:/# busctl set-property com.sugon.sensors.DISCRETE 
/com/sugon/sensors/HDD/HDD4_Status xyz.openbmc_project.Sensor.DiscreteAll 
FanDeviceInserted b true              -- new add

root@demoboard:/#



I want the property on Dbus is read only. Just can modify by the special method 
and cannot  modify the property directly. How can I change it like this?


thanks,
Byron





At 2020-04-21 00:43:00, "Lennart Poettering" <[email protected]> wrote:
>On Mo, 20.04.20 23:00, www ([email protected]) wrote:
>
>> dear all;
>>
>>
>> How to set some properties in systemd to read-only? Who can give the sample 
>> code?
>
>I don't understand the question. Do you mean a D-Bus property? They
>generally are read-only for unprivileged bus clients. With a PolicyKit
>action configuration you can open them up, but typically unprivileged
>clients can't change them.
>
>Lennart
>
>--
>Lennart Poettering, Berlin
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