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This simply checks if the specified PidRef refers to the process we are
running in.
(In case you wonder why this is not a static inline: to avoid cyclic
header inclusion problems between pidref.h + process-util.h)
The SSID fills the role of the optional Network_ID input parameter
suggested by RFC7217. Including the SSID allows networkd to generate a
different pseudorandom address for different wireless networks, which
should help to obscure the host's identity when roaming between multiple
networks.
The 'TPM2B public' struct is only initialized if the public key
is non-NULL, however, it is unconditionally passed to
tpm2_calculate_sealing_policy, resulting in use of uninitialized
data. If the uninitialized data is lucky enough to be all zeroes,
this results eventually results in an error message from
tpm2_calculate_name about an unsupported nameAlg field value.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We generally prefer dealing with parsed data instead of original
strings, do so for the "rwm" strings too. We have to convert this to
flags for the primary backend implementation (BPF) anyway, hence we
can do this early to have simpler, shorter and more normalized code.
This allows distros to install configuration file templates in /usr/lib/systemd
for example.
Currently we install "empty" config files in /etc/systemd/. They serve two
purposes:
- The file contains commented-out values that show the default settings.
- It is easier to edit the right file if it is already there, the user doesn't
have to type in the path correctly, and the basic file structure is already in
place so it's easier to edit.
Things that have happened since this approach was put in place:
- We started supporting drop-ins for config files, and drop-ins are the
recommended way to create local configuration overrides.
- We have systemd-analyze cat-config which takes care of iterating over
all possible locations (/etc, /run, /usr, /usr/local) and figuring out
the right file.
- Because of the first two points, systemd-analyze cat-config is much better,
because it takes care of finding all the drop-ins and figuring out the
precedence. Looking at files manually is still possible of course, but not
very convenient.
The disadvantages of the current approach with "empty" files in /etc:
- We clutter up /etc so it's harder to see what the local configuration actually is.
- If a user edits the file, package updates will not override the file (e.g.
systemd.rpm uses %config(noreplace). This means that the "documented defaults"
will become stale over time, if the user ever edits the main config file.
Thus, I think that it's reasonable to:
- Install the main config file to /usr/lib so that it serves as reference for
syntax and option names and default values and is properly updated on package
upgrades.
- Recommend to users to always use drop-ins for configuration and
systemd-analyze cat-config to view the documentation.
This setting makes this change opt-in.
Fixes#18420.
[zjs: add more text to the description]
Currently we have a 100ms delay which allows for people to enter/show
the boot menu even when timeout is set to zero.
In a handful of cases, that may not be needed - both in terms of access
policy, as well as latency.
For example: the option to provide the boot menu may be hidden behind an
"expert only" UX in the OS, to avoid end users from accidentally
entering it.
In addition, the current 100ms input polling may cause unexpected
additional delays in the boot. Some example numbers from my SteamDeck:
- boot counting/rename/flush doubles 300us -> 600us
- seed/hash setup doubles 900us -> 1800us
- kernel/image load gets ~40% slower 107ms -> 167ms
It's not entirely clear why the UEFI calls gets slower, nevertheless the
information in itself proves useful.
This commit introduces a new option "menu-disabled", which omits the
100ms delay. The option is documented throughout the manual pages as
well as the Boot Loader Specification.
v2:
- use STR_IN_SET
v3:
- drop erroneous whitespace
v4:
- add a new LoaderFeature bit,
- don't change ABI keep TIMEOUT_* tokens the same
- move new token in the 64bit range, update API and storage for it
- change inc/dec behaviour to TIMEOUT_MIN : TIMEOUT_MENU_FORCE
- user cannot opt-in from sd-boot itself, add assert_not_reached()
v5:
- s/Menu disablement control/Menu can be disabled/
- rewrap comments to 109
- use SYNTHETIC_ERRNO(EOPNOTSUPP)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
To be on the safe side, explicitly mention that apart from the numerical
entries we can allow string ones.
Implementation-wise, bootctl will use internal numerical values that
match sd-boot's ABI. The latter also accepts the string options.
Going forward we'd like to avoid adding more internal magic and be more
explicit.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
In c08bec1587 the journal-upload unit gained Restart=on-fail, which goes
against this one particular test that expects the unit to fail, making
the test flaky. Let's disable the automatic restarts just for this test
to make it stable once again.
With file systems that have volume management functionalities or
volume managers like LVM, it's fine for the backing device of a mount
to disappear after mounted. Currently, we enforce BindsTo= or
StopPropagatedFrom= on the backing device, thus prohibiting such
cases. Instead, let's make this configurable through x-systemd.device-bound.
Closes#16801Closes#29543
Add persistent symlinks for MTD devices like SPI-NOR flash, based on the
partition names specified on the cmdline, in a Device Tree, or by other
MTD partitioning parser drivers. Using the persistent name can be
preferable to using the numbered /dev/mtdX device, as the latter can
change depending on probe order or when partitioning has changed.
If systemd-nspawn is newer than the running systemd, we might try to set
CoredumpReceive=yes when systemd doesn't know about it yet. Try and
check if the running systemd is aware of this setting, and if not, don't
try and use it.
Fixes 411d8c72ec
("nspawn: set CoredumpReceive=yes on container's scope when --boot is set").
We were testing the that C constant is defined, but we weren't actually testing
that the string name maps back to itself. This would catch the issue fixed by
the grandparent commit.
The test for the default name is moved to the test file to keep the tests
together. The define is renamed to not have "_TEST" in the name. The issue here
is complicated by the fact that we allow downstreams to inject additional
fields, so we don't know the name of the default scheme if it not set with
-Ddefault-net-naming-scheme=, so _DEFAULT_NET_NAMING_SCHEME[_TEST] is not
defined in all cases, but at least in principle it could be used in other
places. If it exists, it is fully valid.
https://github.com/systemd/systemd/pull/29582 adds the "v254" name. This also
changes what the default is and what "latest" refers to. Without the name, the
code could be enabled via runtime configuration. Nevertheless, it could be
enabled at compilation time. In other words:
meson setup build -Ddefault-net-naming-scheme=v254
would work, but
net.naming-scheme=v254
would fail.
It is possible that people were using the compile-time override, so I think
we should allow "v254" scheme to stay and clearly document that it wasn't the
default.
Unfortunately, unless people manually introduced the compile-time override, we
were never actually testing the new code too. So all the pull request testing
was not useful.
Let's support the same filtering options that we also support in
udevadm trigger in udevadm info to filter the devices produced by
--export-db.
One difference is that all properties specified by --propery-match=
have to be satisfied in udevadm info unlike udevadm trigger where just
one of them has to be satisfied.
Instead of mounting over, do an atomic swap using mount beneath, if
available. This way assets can be mounted again and again (e.g.:
updates) without leaking mounts.
almost all code in namespace.c only logs at debug level as it is
"library-like" code. But there are some outliers. Adjust them to match
the rest of the code
(Well, there are some left)
