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This makes sure nspawn's --volatile=yes switch works again: there we
have a read-only image that is overmounted by a tmpfs (with the
exception of /usr). This we need to mkdir all mount points even though
the image is read-only.
Hence, let's drop the optimizatio of avoiding mkdir() on images that are
read-only, it's wrong and misleading here, since the image itself might
be read-only but our mounts are not.
Previously handling of DISSECT_IMAGE_MKDIR was pretty weird and broken:
it would control both if we create the top-level mount point when
mounting an image, and the inner mount points for images that consist of
multiple file systems. However, the latter is redundant, since
1f0f82f1311e4c52152b8e2b6f266258709c137d does this too, a few lines
further up – unconditionally!
Hence, let's make the meaning of DISSECT_IMAGE_MKDIR more strict: it
shall be only about the top-level mount point, not about the inner ones
(where we'll continue to create what is missing alwayway). Having a
separate flag for the top-level mount point is relevant, since the mount
point dir created by it will remain on the host fs – unlike the
directories we create inside the image, which will stay within the
image.
This slightly change of meaning is actually inline with what the flag is
actually used for and documented in systemd-dissect.
Closes#18669.
This creates a "well known" for sgx_enclave ownership. By doing this here we
avoid the risk that various projects making use of the device will provide
similar-but-slightly-incompatible installation instructions, in particular
using different group names.
ACLs are actually a better approach to grant access to users, but not in all
cases, so we want to provide a standard group anyway.
Mode is 0o660, not 0o666 because this is very new code and distributions are
likely to not want to give full access to all users. This might change in the
future, but being conservative is a good default in the beginning.
Rules for /dev/sgx_provision will be provided by libsg-ae-pce:
https://github.com/intel/linux-sgx/issues/678.
Skip printing the coredump info table when using the `debug` verb in
combination with the `-q/--quiet` option. Useful when trying to gather
coredump info non-interactively via scripted gdb commands.
Fixes: systemd/systemd#18935
otherwise udev complains about the file being world-writable:
systemd-udevd[228]: Configuration file /etc/udev/rules.d/00-set-LD_PRELOAD.rules is marked world-writable. Please remove world writability permission bits. Proceeding anyway.
Fixes: systemd/systemd-centos-ci#354
This reverts commit 876c75fe870846b09b54423a6b719d80bc879b27.
The patch seems to cause usb devices to get some attributes set from the parent
PCI device. 'hwdb' builtin has support for breaking iteration upwards on usb
devices. But when '--subsystem=foo' is specified, iteration is continued. I'm
sure it *could* be figured out, but it seems hard to get all the combinations
correct. So let's revert to functional status quo ante, even if does the lookup
more than once unnecessarily.
Fixes#18125.
When running TEST-22 under ASan, there's a chain of events which causes
`stat` to output an extraneous ASan error message, causing following
fail:
```
+ test -d /tmp/d/1
++ stat -c %U:%G:%a /tmp/d/1
==82==ASan runtime does not come first in initial library list; you should either link runtime to your application or manually preload it with LD_PRELOAD.
+ test = daemon:daemon:755
.//usr/lib/systemd/tests/testdata/units/testsuite-22.02.sh: line 24: test: =: unary operator expected
```
This is caused by `stat` calling nss which in Arch's configuration calls
the nss-systemd module, that pulls in libasan which causes the $LD_PRELOAD
error message, since `stat` is an uninstrumented binary.
The $LD_PRELOAD variable is explicitly unset for all testsuite-* services
since it causes various issues when calling uninstrumented libraries, so
setting it globally is not an option. Another option would be to set
$LD_PRELOAD for each `stat` call, but that would unnecessarily clutter
the test code.
So Linux has this (insane — in my opinion) "feature" that if you name a
network interface "foo%d" then it will automatically look for the
interface starting with "foo…" with the lowest number that is not used
yet and allocates that.
We should never clash with this "magic" handling of ifnames, hence
refuse this, since otherwise we never know what the name is we end up
with.
We should probably switch things from a deny list to an allow list
sooner or later and be much stricter. Since the kernel directly enforces
only very few rules on the names, we'd need to do some research what is
safe and what is not first, though.
We use 'unsigned' as the type, but netlink(7) says the type is 'int'.
It doesn't really matter, since they are both the same size. Let's use
our helper to shorten the code a bit.
Without this, privilege escalation through polkit does not work, because all
methods fail with permission errors.
Forgotten in 8885fed4e3a52cf1bf105e42043203c485ed9d92.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1933335.
Reading file '/usr/lib/systemd/ntp-units.d/80-systemd-timesync.list'
Failed to add NTP service "# This file is part of systemd.", ignoring: Invalid argument
Failed to add NTP service "# See systemd-timedated.service(8) for more information.", ignoring: Invalid argument
:(
Previously we'd just check if the ID was no-empty an no longer than
FILENAME_MAX. The latter was probably a mistake, given the comment next
to it. Instead of fixing that to check for NAME_MAX let's instead just
switch over to filename_is_valid() which odes a similar check, plus a
some minor additional checks. After all we do want that valid EFI boot
menu entry ids are usable as filenames.
This fixes two checks where we compare string sizes when validating with
FILENAME_MAX. In both cases the check apparently wants to check if the
name fits in a filename, but that's not actually what FILENAME_MAX can
be used for, as it — in contrast to what the name suggests — actually
encodes the maximum length of a path.
In both cases the stricter change doesn't actually change much, but the
use of FILENAME_MAX is still misleading and typically wrong.
Previously, if the hashmap is allow-list and a new deny-listed syscall
is added, seccomp_parse_syscall_filter() simply drop the new syscall
from hashmap even if error number is specified.
This makes 'allow-list' hashmap store two types of entries:
- allow-listed syscalls, which are stored with negative value (-1).
- deny-listed syscalls, which are stored with specified errno.
Fixes#18916.
parse_syscall_and_errno() does not check the validity of syscall name or
syscall group name, but it just split into syscall name and errno.
So, it is not necessary to call it for SystemCallLog=.
