Yu Watanabe [Sun, 12 Mar 2023 07:40:18 +0000 (16:40 +0900)]
sd-boot: fix incompatible type
Fixes the following build error:
```
../src/boot/efi/vmm.c: In function ‘get_smbios_table’:
../src/boot/efi/vmm.c:217:24: error: incompatible types when returning type ‘_Bool’ but ‘const SmbiosHeader *’ was expected
217 | return false;
| ^~~~~
```
Mike Yuan [Sat, 25 Feb 2023 13:02:17 +0000 (21:02 +0800)]
edit-util: introduce EditFileContext
This is a rather large change which moves
the add and install logic into edit-util.
We store an EditFile array and the number of
elements, along with the edit markers used in
temporary files and whether to remove the parent
directories of the target files if they're empty
in an EditFileContext object.
Call edit_files_add() to add an file to edit,
and do_edit_files_and_install() to do the actual
editing (through create_edit_temp_file(),
run_editor() and trim_edit_markers()).
After that, edit_file_context_done() can be used
to destroy the object.
Dmitry V. Levin [Fri, 10 Mar 2023 08:00:00 +0000 (08:00 +0000)]
udev_rules_parse_file: issue diagnostics about duplicate LABEL tokens
When a rules contains several LABEL tokens, the parser used to silently
discard all of them besides the last one without any diagnostics at all.
It's time to break the vow of silence and let the parser issue a warning.
Will Fancher [Wed, 8 Feb 2023 03:00:38 +0000 (22:00 -0500)]
mount: Include After=local-fs-pre.target by default in initrd
Although it may be true that /sysroot and its children don't belong in
local-fs.target, that doesn't mean they shouldn't come after
local-fs-pre.target. For instance, systemd-hibernate-resume@.service needs to
come before /sysroot and its children, but currently that only happens
coincidentally because of the ordering between systemd-fsck@.service and
local-fs-pre.target. As a result, mount units can be mistakenly started
simultaneously with systemd-hibernate-resume@.service, which can cause
corruption and data loss in the worst of cases.
Dmitry V. Levin [Thu, 9 Mar 2023 08:00:00 +0000 (08:00 +0000)]
udevadm verify: introduce --root option
When udevadm verify is invoked without positional arguments and loads
all rules files from the system like the udev daemon does, this option
can be used to operate on files underneath the specified root path.
Dmitry V. Levin [Thu, 9 Mar 2023 08:00:00 +0000 (08:00 +0000)]
udevadm verify: load all rules from the system if no rules were given
When udevadm verify is invoked without positional arguments, that is,
when no udev rules files are specified, load all rules files from the system
like the udev daemon does, and verify them.
Jan Janssen [Mon, 27 Feb 2023 15:54:48 +0000 (16:54 +0100)]
boot: Bring back bootloader builds
This adds back sd-boot builds by using meson compile targets directly.
We can do this now, because userspace binaries use the special
dependency that allows us to easily separate flags, so that we don't
pass anything to EFI builds that shouldn't be passed.
Additionally, we pass a bunch of flags to hopefully disable/override any
distro provided flags that should not be used for EFI binaries.
Jan Janssen [Sun, 26 Feb 2023 13:09:44 +0000 (14:09 +0100)]
tree-wide: Drop gnu-efi
This drops all mentions of gnu-efi and its manual build machinery. A
future commit will bring bootloader builds back. A new bootloader meson
option is now used to control whether to build sd-boot and its userspace
tooling.
In various tools and services we have a per-system and per-user concept.
So far we sometimes used a boolean indicating whether we are in system
mode, or a reversed boolean indicating whether we are in user mode, or
the LookupScope enum used by the lookup path logic.
Let's address that, in introduce a common enum for this, we can use all
across the board.
This is mostly just search/replace, no actual code changes.
Ronan Pigott [Tue, 28 Feb 2023 05:57:06 +0000 (22:57 -0700)]
load-fragment: add user credential specifiers to user.conf
This enables the ManagerEnvironment= settings in the user's user.conf to
reference some user data like $HOME for the purpose of setting
environment variables derived from these values.
mempress: change default PSI window duration to 2s
This changes the PSI window duration we default to for watching memory
pressure events from 1s to 2s. This is because apparently the kernel
will soon disallow window durations other than 2s for unprivileged
processes.
Hence, we'll bump the threshold from 100m to 200ms, and the window from
1s to 2s.
dissect-image: set MS_NOSYMFOLLOW for ESP/XBOOTLDR
When we mount a DDI, let's set MS_NOSYMFOLLOW for ESP/XBOOTLDR. They are
generally untrusted territory, (i.e. outside of
encryption/authentication via dm-crypt/dm-verity). Moreover they are
generally FAT, where symlinks don't exist anyway. Let's hence disable
symlinks for them.
This slightly refactors how we put together mount options for mounts,
splitting this out into a new helper call
dissected_partition_pick_options(), which we should be able to reuse
later in gpt-auto-generator, to ensure mounts via loopback as DDI and
those on bare metal get the same options.
This adds symlinks that allow accessing loopback block devices via stable
names that reference their backing block devices, make the unpredictable
naming of loopback devices less of an issue.
Example:
1. Create a loopback block device for a file $F
losetup --find $F
2. Reference the backing block device via its inode:
dissect: allow setting "lo_file_name" field of loopback block devices
When attaching a loopback file this allows us to set an explicit name
for it. This is useful since it allows a caller to pre-select a string
that is directly attached to the loopback file. Via udev rules we'l
later make the device accessible through this name.
Note that "lo_file_name" is supposed to carry a file name of the backing
file, but the kernel actually does not care or enforce any of that, it
just stores the filename and returns it later. This makes it so useful,
as userspace has total control of that field.
"lo_file_name" should not be confused with the sysattr
"loop/backing_file" which is actually maintained by the kernel itself,
and always shows the file to the backing inode without userspace having
direct control over the returned string. Because the sysattr is
generated by the kernel it is subject to file system namespacing and
everything, while "lo_file_name" is not, it's really just a string
passed through the kernel.
dissect: add commands for attaching/detaching loopback devices
Sometimes it is useful attaching DDIs without mounting them. We could
use "losetup" for that, but doing this in systemd-dissect has various
benefits:
1. we superficially validate the DDI first
2. we set the sector size depending on what we determine
3. we synchronously create the per-partition block devices
This adds support for retrieving info about the inode backing a loopback
file to udev-builtin-blkid. It will pick up the inode number and device
of the backing inode, as well as the lo_file_name[] array that the
loopback device maintains.
A later patch uses this information to create block device symlinks in
/dev/ that allow refering block devices by their backing inodes. This is
useful when separate tools set up a loopback device from those which
ultimately shall mount them, and there shall be a stable reference be
passed along. For example, we can add a new kernel option setuploop= or
so which allows setting up a block device via a generator, and still
have a way to safely reference later.
And yes, this doesn't directly have anything to do with the probing
libblkid does, but it's close enough, and we have the device open anyway
here, so the additional ioctl() here should not hurt.
test: fall back to /sys/fs/cgroup/systemd if necessary
Necessary for some CI setups where we boot an nspawn container on a host
with older systemd with legacy hierarchy, so systemd mounts its stuff
under /sys/fs/cgroup/systemd.