The udev plugin is somewhat special as it uses a non-subclassed FuDevice that
never gets 'opened'.
This means that we never automatically call fu_device_setup() and thus the
instance IDs are not converted into GUIDs before the device is added.
The profiling data is of limited use, and better data can be obtained using
kcachegrind and massif. Additionally, the profile samples were the cause of the
small RSS growth over time, when in reality the data would only be shown when
the verbose switch is used at daemon startup.
Now devices can have multiple GUIDs and do not share platform IDs there is
really no point waiting to add the device.
This allows us to remove a whole lot of code for this now-unused functionality.
It wasn't hugely clear what the platform ID was actually meant to represent. In
some cases it was being used like a physical ID, in others it was a logical ID,
and in others it was both. In some cases it was even used as a sysfs path.
Clear up all the confusion by splitting the platform ID into two parts, an
optional *physical* ID to represent the electrical connection, and an optional
*logical* ID to disambiguate composite devices with the same physical ID.
Also create an explicit sysfs_path getter for FuUdevDevice to make this clear.
This allows WAIT_FOR_REPLUG to always work, rather than depending on the order
that the GUIDs were added, and that the kernel would always return the same
sysfs path (which it doesn't have to do, especially for hidraw devices).
The daemon creates a baseclass of either FuUsbDevice or FuUdevDevice when the
devices are added or coldplugged to match the quirk database and to find out
what plugin to run.
This is proxied to plugins, but they are given the GUsbDevice or GUdevDevice and
the FuDevice is just thrown away. Most plugins either use a FuUsbDevice or
superclassed version like FuNvmeDevice and so we re-create the FuDevice, re-probe
the hardware, re-query the quirk database and then return this to the daemon.
In some cases, plugins actually probe the hardware three times (!) by creating
a FuUsbDevice to get the quirks, so that the plugin knows what kind of
superclass to create, which then itself probes the hardware again.
Passing the temporary FuDevice to the plugins means that the simplest ones can
just fu_plugin_device_add() the passed in object, or create a superclass and
incorporate the actual GUsbDevice and all the GUIDs.
This breaks internal plugin API but speeds up startup substantially and deletes
a lot of code.
Rename FuPending to FuHistory to better represent what the object is now doing.
Also, while we're here, switch to using SQLite prepared statements to avoid a
possible invalid read on i386 hardware.
That GUdev function returns a const gchar*, not an allocated pointer, so
don’t try to autofree it. This would have caused a crash (I only
observed it as a compiler warning with
-Wincompatible-pointer-types-discards-qualifiers).
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This allows us to show the devices in a GUI with a nice icon. Some of the icon
mappings are not perfect and I'll be asking the GNOME designers for some
additions to the icon specification.
Custom vendor icons can also be specified, and /usr/share/fwupd/icons would be
a good place to put them. If vendor icons are used they should show a physical
device with the branding, rather than just the vendor logo.
We used to do this dance to avoid reading the Option ROM on hardware by default
(some faulty hardware would crash...) but now we're doing the verify update in
the daemon there's no need to split this into two steps.
Fixes: https://github.com/hughsie/fwupd/issues/149
Although we supported other hashes than SHA1 (which is now moderately unsafe)
we had to switch the metadata provider and daemon on some kind of flag day to
using SHA256. Since that's somewhat impractical, just allow multiple checksums
to be set on objects and just try to match whatever is given in preference
order.
This also means we can easily transition to other hash types in the future.
The removed API was never present in a tarball release, so not an API break.
Automake and autoconf are impossible to fully understand and Meson now provides
everything we need for a much smaller, faster, and more understandable build.
See http://mesonbuild.com/ for more information.
My compiler doesn't understand -Wno-discard-qualifiers so drop it and
fix the warnings instead. I think it is better to explicitly fix them
anyways instead of just to ignore the discarded const qualifier in
general.
I think the option should be avoided in hand-written code. The warning
is there for a reason: To protect you from possibly overwriting data you
expect to not be modified when passing pointers around.
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41215
failed to open plugin /usr/lib/x86_64-linux-gnu/fwupd-plugins-2/libfu_plugin_udev.so:
failed to open plugin: /usr/lib/x86_64-linux-gnu/fwupd-plugins-2/libfu_plugin_udev.so:
undefined symbol: g_udev_device_get_property
