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This just got too confusing for me. With this change we'll now have
_unified as common suffix for stuff loading unified kernels (i.e. type
1), and _type1 as common suffix for type1 entries.
Just some renaming.
For testing purposes I run one of my system symlinking /boot/loader/ to
/efi/loader/. This triggers annoying behaviour in boot entry
enumeration: the code ends up iterating through the 'entries' subdir of
both, thinking one was actually in the ESP and the other in XBOOTLDR,
and thus distinct. This would result in duplicate entries.
Let's address that, and filter out duplicates via their inode numbers:
never process the same inode twice. This should protect us from any
confusion effectively, regardless which inodes are symlinked (or even
bind mounted).
We can't really use conf_files_list() for finding type #1 entries, since
it is case-sensitive, but type #1 entries are typically placed on VFAT,
i.e. are case-insensitive.
hence, use readdir_all() instead, which is quite similar, but gives us
all files, and allows us to do a case-insensitive check.
While we are at it, use openat() on the open dir to open the file, and
pass that around, to make things a tiny bit more race-free.
Defaults to /bin/bash, no changes in the default configuration
The fallback shell for non-root users is as-specified,
and the interactive shell for nspawn sessions is started as
exec(default-user-shell, "-" + basename(default-user-shell), ...)
before falling through to bash and sh
The first three fields of a note are binary, so they are subject to
flipping due to endianess. Instead of a stream of bytes, just use
the native 4-bytes type so that it gets encoded automatically.
Implemented in the tools via: https://github.com/systemd/package-notes/pull/31
Instead of escaping each component separately, we can instead use
quote_command_line. Doing so simplifies the code and fixes an issue
where spaces inside the executable name were not escaped.
Co-Authored-By: David Edmundson <kde@davidedmundson.co.uk>
This fixes a bug introduced by 7be4b23649.
The function `efi_loader_get_device_part_uuid()` handles NULL
gracefully, and it is called with NULL in gpt-auto-generator.
Fixes#22862.
Previously, if a block device is locked by another process, then the
corresponding worker skip to process the corresponding event, and does
not broadcast the uevent to libudev listners. This causes several issues:
- During a period of a device being locked by a process, if a user trigger
an event with `udevadm trigger --settle`, then it never returned.
- When there is a delay between close and unlock in a process, then the
synthesized events triggered by inotify may not be processed. This can
happens easily by wrapping mkfs with flock. This causes severe issues
e.g. new devlinks are not created, or old devlinks are not removed.
This commit makes events are requeued with a tiny delay when the corresponding
block devices are locked by other processes. With this way, the triggered
uevent may be delayed but is always processed by udevd. Hence, the above
issues can be solved. Also, it is not necessary to watch a block device
unconditionally when it is already locked. Hence, the logic is dropped.
Let's be more precise here. Otherwise people might think this describes
the software system or so. We already expose this via hostnamed as
HardwareVendor/HardwareModel hence use the exact same wording.
(Note that the relevant props on the dmi device are just VENDOR/MODEL,
but that's OK given that DMI really is about hardware anyway,
unconditionally, hence no chance of confusion there.)
Follow-up for 4fc7e4f374
Previously, `event_run()` was called repeatedly in one `event_queue_start()`
invocation. Hence, the SELinux label database is reloaded many times needlessly.
Other settings, e.g. udev rules or hwdata, are tried to be reloaded in the
beginning of `event_queue_start()`. Let's also do so for the SELinux database.
Previously, if udevd failed to resolve event dependency, the event is
ignored and libudev listeners did not receive the event. This is
inconsistent with the case when a worker failed to process a event,
in that case, the original uevent sent by the kernel is broadcasted to
listeners.
The ENOENT, ENXIO, and ENODEV error can happen easily when a block
device appears and soon removed. So, it is reasonable to ignore the
error. But other errors should not occur here, and hence let's handle
them as critical.
When the last queued event is processed, information about subsequent
events may be already queued in the netlink socket of sd-device-monitor.
In that case, previously we once removed /run/udev/queue and touch the
file soon later, and `udevadm settle` mistakenly considered all events
are processed.
To mitigate such situation, this makes /run/udev/queue removed in on_post().
Some refactoring: split efi-loader.[ch] in two: isolate the calls that
implement out boot loader interface spec, and those which implement
access to upstream UEFI firmware features.
They are quite different in nature and behaviour, and even semantically
it makes to keep these two separate. At the very least because the
previous name "efi-loader.[ch]" suggests all was about loader-specific
APIs, but much of it is generic uefi stuff...
While we are at it, I renamed a bunch of return parameters to follow our
usual ret_xyz naming. But besides renaming no real code changes.
