This exports FuSecurityAttrs into libfwupdplugin so that we can pass the plugins
this object rather than a 'bare' GPtrArray. This greatly simplifies the object
ownership, and also allows us to check the object type before adding.
In the future we could also check for duplicate appstream IDs or missing
properties at insertion time.
This change also changes the fu_plugin_add_security_attrs() to not return an
error. This forces the plugin to handle the error, storing the failure in the
attribute itself.
Only the plugin know if a missing file it needs to read indicates a runtime
problem or a simple failure to obtain a specific HSI level.
The HSI specification assigns a simple text ID to the current state of firmware
security. As new vulnerabilities are found, and as protection measures are
updated, new requirements will be added to the required firmware behaviours for
each HSI value.
The HSI specification is currently incomplete and in active development, and
so the --force flag is required in all command line tools. The current ID value
will probably change on a given platform so please do not start using the result
for any kind of compliance requirements.
Sometimes the plugin will want to influence the subclassed device, for instance
by reading a per-plugin config file. At the moment there's no way to do this,
as even _device_registered() is explicitly designed for devices *not* created
by the plugin itself.
Even if _device_registered() was changed to include the plugin creating the
object it would still happen well after the device has done _probe() and/or
_setup() and would probably be too late to do anything useful.
