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This adds a small tool that may be used to look into OS images, and mount them
to any place. This is mostly a friendlier version of test-dissect-image.c. I am
not sure this should really become a proper command of systemd, hence for now
do not install it into bindir, but simply libexecdir.
This tool is already pretty useful since you can mount image files with it,
honouring the various partitions correctly. I figure this is going to become
more interesting if the dissctor learns luks and verity support.
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DEFINE_TRIVIAL_CLEANUP_FUNC() already does that check, no need to duplicate it.
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This adds a bus call GetImageOSRelease() to the Manager interface that
retrieves the /etc/os-release file of a machine image. It matches the existing
GetMachineOSRelease() call, however operates on a disk image rather than a
running container.
The backend for this call on .raw images is implemented via the generalized
image dissector, which makes this scheme relatively easy to implement.
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_cleanup_
This adds mkdtemp_malloc() that is a combination of mkdtemp() plus strdup(). It
initializes its return paremeter only if the temporary directory could be
created successfully, so that the parameter is exactly non-NULL when the
directory exists.
rmdir_and_free() and rmdir_and_freep() are also added, and the latter may be
used inside of _cleanup_ for such a directory string variable, to automatically
rmdir() the directory if it is non-NULL when the scope exits.
rmdir_and_free() is similar to the existing rm_rf_and_free() however, is only
removes a single directory and does not operate recursively.
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Let's make use of the new internal API. This mostly doesn't change anything for
the caller, however, "systemd-nspawn --image=/dev/sda7" works now as the new
code can handle disk images with no partition tables, and make any detected
images directly the root.
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This adds two new APIs to systemd:
- loop-util.h is a simple internal API for allocating, setting up and releasing
loopback block devices.
- dissect-image.h is an internal API for taking apart disk images and figuring
out what the purpose of each partition is.
Both APIs are basically refactored versions of similar code in nspawn. This
rework should permit us to reuse this in other places than just nspawn in the
future. Specifically: to implement RootImage= in the service image, similar to
RootDirectory=, but operating on a disk image; to unify the gpt-auto-discovery
generator code with the discovery logic in nspawn; to add new API to machined
for determining the OS version of a disk image (i.e. not just running
containers). This PR does not make any such changes however, it just provides
the new reworked API.
The reworked code is also slightly more powerful than the nspawn original one.
When pointing it to an image or block device with a naked file system (i.e. no
partition table) it will simply make it the root device.
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All other constructors in libudev do that, let's also do this for udev_new().
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hwdb: Add fixed layout for a few devices
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"*:*" should be equivalent to "*-*-* *:*:00" (minutely)
rather than running every microsecond.
Fixes #4804
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Fixes: #4839
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1. Listed in TODO.
2. Tree wide replace safe_atou16 with parse_ip_port incase
it's used for ports.
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Let's accept "µs" as alternative time unit for microseconds. We already accept
"us" and "usec" for them, lets extend on this and accept the proper scientific
unit specification too.
We will never output this as time unit, but it's fine to accept it, after all
we are pretty permissive with time units already.
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Add entries for extra partitions found on MMC devices (common in Chromebooks).
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Misc cleanups
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One SA_RESTART is enough. Fall out from
e28c7cd0665364bb910fe2cead882623c23c28ac
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Fixes #4789
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When we are in link_enter_configured we assume that the
link->state should be LINK_STATE_SETTING_ROUTES but in some
situation it's LINK_STATlE_SETTING_ADDRESSES.
Just ignore the wrong state.
Also since the return value not used any where
make link_enter_configured return type void.
Fixes: #4746
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Make sure to populate the cache in cache_space_refresh() at least once
otherwise it's possible that the system boots fast enough (and the journal
flush service is finished) before the invalidate cache timeout (30 us) has
expired.
Fixes: #4790
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Follow-up to #4687 and e7330dfe14b1965f.
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networkd: support marking links unmanaged
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Python cleanups based on pylint advice
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Behaviour is not changed, because "unknown" escapes like \s or \d were not
substituted, but it's much nicer to use raw strings to avoid ambiguity.
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(This commit is separate to make it easy to export to libinput.)
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Evidently this code path was never hit, because we'd crash with NameError.
The exception message also seems bogus. So just replace the whole thing
with the standard exception for invalid input.
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It is possible to specify only one quote in udev rules, which is not
detected as an invalid quoting (" instead of "" for empty string).
Technically this doesn't lead to a bug, because the string ends in two
terminating nul characters at this position, but a user should still be
reminded that his configuration is invalid.
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This closes #4768
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https://bugs.debian.org/837999
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tree-wide: stop using canonicalize_file_name(), use chase_symlinks() …
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Xkb fixed layout
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As suggested by @keszybz
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When complaining about the inability to resolve a path, show the full path, not
just the relative one.
As suggested by @keszybz.
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/var/tmp
This extends the --bind= and --overlay= syntax so that an empty string as source/upper
directory is taken as request to automatically allocate a temporary directory
below /var/tmp, whose lifetime is bound to the nspawn runtime. In combination
with the "+" path extension this permits a switch "--overlay=+/var::/var" in
order to use the container's shipped /var, combine it with a writable temporary
directory and mount it to the runtime /var of the container.
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If a source path is prefixed with "+" it is taken relative to the container's
root directory instead of the host. This permits easily establishing bind and
overlay mounts based on data from the container rather than the host.
This also reworks custom_mounts_prepare(), and turns it into two functions: one
custom_mount_check_all() that remains in nspawn.c but purely verifies the
validity of the custom mounts configured. And one called
custom_mount_prepare_all() that actually does the preparation step, sorts the
custom mounts, resolves relative paths, and allocates temporary directories as
necessary.
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We already set it in most cases, but make sure to set it in all others too, and
document that that's a good idea.
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Fixes: #4634
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Yubikeys and other pseudo keyboards require that they are in the US layout,
otherwise the data they send is invalid. Add two new keys to signal this to
processes that handles (XKB) layouts.
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60-keyboard.rules was renamed to 60-evdev.rules in 51c0c2869
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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Add overlay_mount_parse() similar in style to tmpfs_mount_parse() and
bind_mount_parse().
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The function is of the "library" kind and doesn't log ENOMEM in all other
cases, hence fix the one outlier.
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If --template= is used on an image, then the image might not exist initially.
We can use CHASE_NON_EXISTING to properly lock the image already before it
exists. Let's do so.
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