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Confexts should not contain code, so mount confexts with noexec.
We cannot mount invidial extensions as noexec, as the overlay ignores
it and bypasses it, we need to use the flag on the whole overlay for
it to be effective.
But given there are legacy scripts still shipped in /etc, allow to
override it with --noexec=false.
(The one case that is left unchanged is '< <(subcommand)'.)
This way, the style with no gap was already dominant. This way, the reader
immediately knows that ' < ' is a comparison operator and ' << ' is a shift.
In a few cases, replace custom EOF replacement by just EOF. There is no point
in using someting like "_EOL" unless "EOF" appears in the text.
If a root hash is specified, we should be checking that it matches
the root hash in the verity signature partition, so let's not skip
processing of the verity signature partitions if a root hash is
specified.
The loading of an extension image from a symlink "NAME.raw" to
"NAME-VERSION.raw" failed because the release file name check worked
with the backing file of the loop device which already resolves the
symlink and thus the found name "NAME-VERSION" mismatched "NAME".
Pass the original filename and use it instead of the backing file
when available. This fixes the loading of "NAME.raw" extensions which
are a symlink to "NAME-VERSION.raw" as, e.g., may be the case when
systemd-sysupdate manages multiple versions.
Fixes https://github.com/systemd/systemd/issues/24293
This reverts commit 1a0e065e9f.
This does not work as expected.
After `losetup --detach`, the kernel lazily removes the loop device.
But, systemd-dissect should gracefully handle that. If it does not, then
it is a bug in systemd-dissect.
Let's not hide the real issue in systemd-dissect.
Otherwise we might start writing to one of its partition before the
respective node is created under /dev, resulting in... interesting
stuff.
Resolves: #24390
libdevmapper/device mapper driver can return semi-random failures when
opening verity devices, and we have fallback code to deal with it.
But the test was not expecting the fallback path, so it became unreliable.
Fixes https://github.com/systemd/systemd/issues/23866
While I had tested that a symlink to /dev/null works to "mask" a sysext
I must have gotten something wrong and thus the instructions in
519c2f0d6b don't work. What works,
at least at the moment, is to instead have an empty directory with the
extension name under /etc/extensions/.
Correct the info in the man page and add a test for it.
A sysext image that merely contains static binaries has no dependency
on the host distribution and should be able to be used anywhere.
Support the special '_any' value for the ID field in the extension to
opt-out of ID and VERSION_ID/SYSEXT_LEVEL matching.
See https://github.com/systemd/systemd/issues/24061
This command takes a mountpoint, unmounts it and makes sure the
underlying partition devices and block device are removed before
exiting.
To mirror the --mount operation, we also add a --rmdir option which
does the opposite of --mkdir, and a -U option which is a shortcut
for --umount --rmdir.
The implementation of MountImageUnit()/systemctl mount-image was
changed to use a /proc/self/fd path as the source, but that causes
the dm-verity files autodiscovery to fail, as it looks for files
in the same directory as the image.
Use the original file path when setting up dm-verity.
A bind mount is added directly from private on the host to the actual
destination directory, no need for the symlinks (which cannot be created
as the bind mount happens first and creates the target as an actual directory)
Fixes https://github.com/systemd/systemd/issues/22264
Add a new setting that follows the same principle and implementation
as ExtensionImages, but using directories as sources.
It will be used to implement support for extending portable images
with directories, since portable services can already use a directory
as root.
The openssl binary is an optional dependency.
If systemd has been built with OpenSSL support, we want to test its
OpenSSL functionality.
So record a failure message in /failed if the binary is missing.
See https://github.com/systemd/systemd/pull/21724#issuecomment-992707614
If the packages are built without libssl simply skip the signature
checks.
Oct 06 21:21:32 H systemd[1]: systemd 249.1249.gcc4df1f787.0 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT +GNUTLS -OPENSSL
...
Oct 06 21:22:21 H systemd[459]: Activation of signed Verity volume worked neither via the kernel nor in userspace, can't activate.
Follow-up for #20691
In some cases image names are unpredictable - some orchestrators/deployment
tools like to mangle names to suit their internal formats. In these cases,
the requirement that the extension-release file matches exactly the image
name where it's contained cannot work.
Allow falling back to loading the first regular file which name starts with
'extension-release' located in /usr/lib/extension-release.d/ and tagged with
a user.extension-release.strict extended attribute with a true value, if the
one with the expected name cannot be found.
We want to use the result in a shell pipeline hence use -P mode (pipe
mode) instead of -t mode (interactive tty mode) for systemd-run.
This shouldn't change much about the test, but is slightly more correct
(and quicker).
Quoting of values differs between distros: Fedora doesn't quote the ID_
fields, but CentOS does.
Adjust the test checks to account for this.
Fixes#19242
