Commit Graph

3 Commits

Author SHA1 Message Date
Richard Hughes
0a57b90d75 uefi: More carefully check the output from tpm2_pcrlist
Otherwise we can get a PCR0 of 'getcapability:getpcrallocationstatuserror'...
2019-03-27 14:18:19 -04:00
Richard Hughes
b768e4d924 Do not fail to start the daemon if tpm2_pcrlist hangs
In some situations SELinux prevents fwupd from executing tpm2_pcrlist, but the
failure mode is that the process just hangs and never completes. This causes
systemd to time out the fwupd daemon startup and then errors to be shown in
GNOME Software.

To prevent this happening, add an optional timeout argument to
fu_common_spawn_sync() and cancel the subprocess if it takes longer than this
to complete.

See https://bugzilla.redhat.com/show_bug.cgi?id=1665701 for details.
2019-02-26 14:27:13 +00:00
Richard Hughes
b56015ed3f uefi: Add the PCR0 value as the device checksum for system firmware
We can't actually access the UEFI ROM from userspace, but the PCR0 is a hash
built from the ROM itself. We could use this value to ensure the firmware has
been written correctly, and that the PCR0 matches the expected value specified
in the metadata.
2018-12-14 19:23:04 +00:00