Currently, when CHASE_PARENT is specified, we chase the parent directory
of the symlink itself. Let's change this and chase the parent directory
of the symlink target so that trying to open the actual file later with
O_NOFOLLOW doesn't fail with ELOOP.
To get the current behavior, callers can add CHASE_NOFOLLOW to chase
the parent directory of the symlink itself.
Currently, when CHASE_MKDIR_0755 is specified, we create all components
of the path as directories. Instead, let's change the flag to only create
parent directories and leave the final component of the PATH untouched.
Also, allow CHASE_NONEXISTENT with CHASE_MKDIR_0755 now that it doesn't
create all components anymore.
Finally, rework chase_symlinks_and_open() and chase_symlinkat_at_and_open()
to always chase the parent directory and use xopenat() to open the final
component of the path. This allows us to pass O_CREAT to create the file or
directory (O_DIRECTORY) if it is missing. If CHASE_PARENT is configured, we
just reopen the parent directory that we chased.
If no usage type is explicitly specified, ext will choose one based
on the filesystem size. Let's override this and always use the
"default" usage type so that we can create filesystems that are
initially small but might grow later without opting in to the "small"
usage 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;
| ^~~~~
```
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.
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.
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.
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.
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.