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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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This restores the ability to implicitly create files/directories to mount
specified mount points on.
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This new flag controls whether to consider a problem if the referenced path
doesn't actually exist. If specified it's OK if the final file doesn't exist.
Note that this permits one or more final components of the path not to exist,
but these must not contain "../" for safety reasons (or, to be extra safe,
neither "./" and a couple of others, i.e. what path_is_safe() permits).
This new flag is useful when resolving paths before issuing an mkdir() or
open(O_CREAT) on a path, as it permits that the file or directory is created
later.
The return code of chase_symlinks() is changed to return 1 if the file exists,
and 0 if it doesn't. The latter is only returned in case CHASE_NON_EXISTING is
set.
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Let's remove chase_symlinks_prefix() and instead introduce a flags parameter to
chase_symlinks(), with a flag CHASE_PREFIX_ROOT that exposes the behaviour of
chase_symlinks_prefix().
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Previously, we'd generate an EINVAL error if it is attempted to escape a root
directory with relative ".." symlinks. With this commit this is changed so that
".." from the root directory is a NOP, following the kernel's own behaviour
where /.. is equivalent to /.
As suggested by @keszybz.
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root
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and so on
Fixes: #2860
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chase_symlinks() currently expects a fully qualified, absolute path, relative
to the host's root as first argument. Which is useful in many ways, and similar
to the paths unlink(), rename(), open(), … expect. Sometimes it's however
useful to first prefix the specified path with the specified root directory.
Add a new call chase_symlinks_prefix() for this, that is a simple wrapper.
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--directory=
As suggested in PR #3667.
This PR simply ensures that --template= can be used as alternative to
--directory= when --ephemeral is used, following the logic that for ephemeral
options the source directory is actually a template.
This does not deprecate usage of --directory= with --ephemeral, as I am not
convinced the old logic wouldn't make sense.
Fixes: #3667
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This resolves any paths specified on --directory=, --template=, and --image=
before using them. This makes sure nspawn can be used correctly on symlinked
images and directory trees.
Fixes: #2001
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Let's use chase_symlinks() everywhere, and stop using GNU
canonicalize_file_name() everywhere. For most cases this should not change
behaviour, however increase exposure of our function to get better tested. Most
importantly in a few cases (most notably nspawn) it can take the correct root
directory into account when chasing symlinks.
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We generally try to make our destructors robust regarding NULL pointers, much
in the same way as glibc's free(). Do this also for unit_free().
Follow-up for #4748.
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(#4773)
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So let's set ForwardDelaySec to USEC_INFINITY .
Reference:
https://wiki.linuxfoundation.org/networking/bridge#does-dhcp-work-overthrough-a-bridge
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parse_hwdb: fix to work with pyparsing 2.1.10
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pyparsing uses the system locale by default, which in the case of 'C' (in lots
of build environment) will fail with a UnicodeDecodeError. Explicitly open it
with UTF-8 encoding to guard against this.
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pyparsing 2.1.10 fixed the handling of LineStart to really just apply to line
starts and not ignore whitespace and comments any more. Adjust EMPTYLINE to
this.
Many thanks to Paul McGuire for pointing this out!
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Sometimes setting the transient hostname does not happen synchronously, so
retry up to five times. It is not yet clear whether this is legitimate
behaviour or an underlying bug, but this will at least show whether the wrong
transient hostname is just a race condition or permanently wrong.
Fixes #4753
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Improvements for notify services (including #4212)
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Setting NotifyAccess=exec allows notifications coming directly from any
control process.
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