The new firmware for receivers with the nordic chips is using the 0x04
record type. This was previously not handled when parsing the file,
causing wrong behavior when trying to update the device. This patch
tries to properly deal with the record types, being them 0x04 or other.
Signed-off-by: Filipe Laíns <lains@archlinux.org>
There are several subtle bugs in various places in fwupd caused by not treating
user-provided offsets into buffers as unsafe. As fwupd runs as root we have to
assume that all user firmware is evil, and also that devices cannot be trusted.
Make a helper to put all the logic into one place and convert all users.
Until now, the unifying plugin was a 'special snowflake' and did things in very
different ways to the other plugins. Refactor each object to derive from either
FuUsbDevice or FuUdevDevice, and then remove LuDevice and the LuContext layers.
