The Linux DMI class still does not provide the information we need, and parsing
the blob directly also allows the Dell and Redfish plugins to get the raw data.
According to the crypto experts, path_len=1 makes things more secure for a CA
to prevent the Sub-CAs from issuing further Sub-Sub-CAs. I'll stick to code.
This also switches around the test for the self signed key to now fail, as the
generated certificate is no longer loaded into the trust list. This is a more
useful test as it more accurately represents what the fwupd daemon is doing.
As a side-note the detached signature from the derivate cannot be generated
using `--no-p7-include-cert` as only the main LVFS-CA certificate is shipped
with fwupd.
This means we return an error when encountering a rollback attack. This can
currently be performed by providing the old metadata and old signature when
calling into UpdateMetadata.
We can use this as an alternative for GPG. No PKCS7 certificates are currently
installed by fwupd and it's expected that the LVFS will still only provide GPG
detached signatures.
If an OEM distributor wants to sign firmware with a PKCS7 and the corresponding
certificate is provided then the firmware will be marked as valid.
Only firmware shipping with a .p7b file will use the PKCS7 functionality,
similarly remote metadata validation will default to GPG unless Keyring=pkcs7
is specified in the config file.
In this mode, both the metadata and firmware is stored on the local filesystem
and distributed using a distribution system like OSTree.
Fixes https://github.com/hughsie/fwupd/issues/162
Now we have multiple remotes that can be enabled or changed at runtime we need
to do several things better:
* Only load components from remotes that are enabled
* Only load a component if a higher priority remote has not already added it
Rather than just appending all recieved metadata into one big XML file, save
the original metadata .xml.gz files in /var/lib/fwupd/remotes.d and only load
them in the correct priority order if the remote is known and enabled.
Remove the old /var/cache/app-info/xmls/fwupd.xml file, also noting it wasn't
really a cache file at all but actually something quite important.
This also moves the tests into one file as gnome-desktop-testing-runner
intentionally randomizes the order and runs them in parallel where allowed.
Since tests like get-updates have to be run after the metadata injection simply
put these into one test that calls a simple script.
