[systemd-devel] Path unit configuration starts early (DefaultDependencies=no)

[Abdelghani Ouchabane]

On 11/11/13 17:35, Zbigniew Jędrzejewski-Szmek wrote:
> On Mon, Nov 11, 2013 at 05:26:28PM +0100, Abdelghani Ouchabane wrote:
>> Hallo,
>>    I have two configuration files: ezono-cyclades-t_upn.path &
>> ezono-cyclades-t_upn.service
>>
>>
>> Where:
>>
>> ezono-cyclades-t_upn.path :
>>
>> [Unit]
>> Description=ezono-cyclades-t_upn Service Spool
>> DefaultDependencies=no
>> Conflicts=shutdown.target
>> Before=shutdown.target
>>
>> [Path]
>> PathExists=/tmp/cyclades/start-ezono-cyclades-gui
>>
>> [Install]
>> WantedBy=ezono-cyclades.target
>>
>>
>> The problem is that by passing "DefaultDependencies=no"
>> ezono-cyclades-t_upn.service doesn't start after
>> /tmp/cyclades/start-ezono-cyclades-gui is created, even after all
>> other units run and I delete /tmp/cyclades/start-ezono-cyclades-gui
>> and create it again.
>>
>> Any idea please.
> Is ezono-cyclaed.target enabled?
Yes

ezono-cyclades.target - eZono Cyclades GUI
    Loaded: loaded (/usr/lib/systemd/system/ezono-cyclades.target; enabled)
    Active: active since Mon 2013-11-11 17:48:43 CET; 23s ago

Nov 11 17:48:43 sonostation-usb12-eth.ezono.net systemd[1]: Starting 
eZono Cyclades GUI.
Nov 11 17:48:43 sonostation-usb12-eth.ezono.net systemd[1]: Reached 
target eZono Cyclades GUI.


>
> Also, DefaultDependencies=no is very unlikely to be what you need.
I want to start ezono-cyclades-t_upn.path early as I can

>
> Also, /tmp/cyclades is subject to "predicatable paths in /tmp" attack.
> You should use a file in /run/.
>
> Zbyszek
Thanks