```
$ sudo mv /usr/lib/x86_64-linux-gnu/libtss2-esys.so.0.0.0 /usr/lib/x86_64-linux-gnu/libtss2-esys.so.0.0.0.renamed
$ sudo fwupdtool get-devices --plugins=uefi
14:15:48:0735 FuEngine cannot load: failed to open plugin /usr/local/lib/x86_64-linux-gnu/fwupd-plugins-3/libfu_plugin_uefi.so: libtss2-esys.so.0: cannot open shared object file: No such file or directory
Loading… [- ]14:15:48:0753 FuEngine failed to update history database: device ID b6c08fb9e5384d9d101853cc1ca20cf0ce2df2e2 was not found
Loading… [***************************************]
WARNING: Plugin depdendencies missing
No detected devices
```
For instance, we can tell the user that UEFI UpdateCapsule is disabled in the
system firmware, or that efivarfs is not mounted. This is much better than
creating "dummy" devices which are really just hacks around the problem because
no better API existed. THe dummy devices cause as many problems as they solve.
Plugins have to set FWUPD_PLUGIN_FLAG_USER_WARNING if a warning should be shown
to the user, and only one warning will be shown of each failure type.
It is expected that GUI clients like gnome-software and gnome-firmware would use
this API to notify the user the localized message for why firmware updates are
not being shown.
Fixes https://github.com/fwupd/fwupd/issues/2456
This would also help, for example, to go back to the nonfree firmware when the
alternate firmware did not work as well as hoped. It would also allow flashing
the firmware using an SPI programmer if everything went very wrong indeed.
See also: https://github.com/fwupd/fwupd/issues/2119
Reported-by: Anton Farygin <rider@altlinux.org>
Based on a patch by Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
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.
This is nice in theory, until you need to look at the bootloader status of the
parent, or of a different device entirely. Handle this in plugins for the few
cases we care about and stop setting or clearing IS_BOOTLOADER manually just to
get the vfuncs to be run.
Note: I do not think we want to use cleanup() for attaching devices not in
bootloader states -- as cleanup is only run at the end of the composite update.
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.
