Historically, the MD5 checksums in our LFS files serve as a protection
against broken downloads, or accidentally corrupted source files.
While the sources are nowadays downloaded via HTTPS, it make sense to
beef up integrity protection for them, since transparently intercepting
TLS is believed to be feasible for more powerful actors, and the state
of the public PKI ecosystem is clearly not helping.
Therefore, this patch switches from MD5 to BLAKE2, updating all LFS
files as well as make.sh to deal with this checksum algorithm. BLAKE2 is
notably faster (and more secure) than SHA2, so the performance penalty
introduced by this patch is negligible, if noticeable at all.
In preparation of this patch, the toolchain files currently used have
been supplied with BLAKE2 checksums as well on
https://source.ipfire.org/.
Cc: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Acked-by: Michael Tremer <michael.tremeripfire.org>
This reverts commit 77e3829dc1.
For the time being, shipping this was found to be too difficult, since
we cannot get linux-firmware down to an acceptable size limit.
Compressing the firmware on installations would work, but takes about 4
minutes on an Intel Xenon CPU alone, hence it is an unacceptable
workload to do for IPFire installation running on weaker hardware.
Therefore, we do not proceed with this at the moment.
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Some files are identical which is why we don't need to ship them mutiple
times. This will save about 13 MiB of disk space and presumably the same
on the compressed distro image.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This patch enabled that we can compress any firmware files on disk. This
will save some space since /lib/firmware is becoming larger with every
release.
From formerly 828MiB, this is now using ~349MiB which is a saving of
about 480MiB on disk. This is helping us a lot fighting to contain the
distribution to 2GB on /.
Some other firmware that is installed in other packages is not
compressed with this patch which is a bit sad, but potentially not worth
the effort.
In order to ship this change with a Core Update, it might be intuitive
to remove /lib/firmware first and then extract the new update with all
new files. However, I do not know if this all will compress as well as
before since now the files are already individually compressed. It might
be a challenge to ship this.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Core Update 158 specifically ships files that are new or have changed to
keep the size of the update down.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Most of these files still used old dates and/or domain names for contact
mail addresses. This is now replaced by an up-to-date copyright line.
Just some housekeeping... :-)
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
