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ReadOnlyPaths=, ProtectHome=, InaccessiblePaths= and ProtectSystem= are
about restricting access and little more, hence they should be disabled
if PermissionsStartOnly= is used or ExecStart= lines are prefixed with a
"+". Do that.
(Note that we will still create namespaces and stuff, since that's about
a lot more than just permissions. We'll simply disable the effect of
the four options mentioned above, but nothing else mount related.)
This also adds a test for this, to ensure this works as intended.
No documentation updates, as the documentation are already vague enough
to support the new behaviour ("If true, the permission-related execution
options…"). We could clarify this further, but I think we might want to
extend the switches' behaviour a bit more in future, hence leave it at
this for now.
Fixes: #5308
9 lines
365 B
Desktop File
9 lines
365 B
Desktop File
[Service]
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Type=oneshot
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# This should work, as we explicitly disable the effect of ReadOnlyPaths=
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ExecStart=+/bin/touch /tmp/thisisasimpletest
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# This should also work, as we do not disable the effect of ReadOnlyPaths= but invert the exit code
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ExecStart=/bin/sh -x -c '! /bin/touch /tmp/thisisasimpletest'
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ExecStart=+/bin/rm /tmp/thisisasimpletest
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ReadOnlyPaths=/tmp
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