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util:bind_remount_recursive() fix "use after free" - 2
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cryptsetup: craft a unique ID with the source device
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sd-bus: add async convenience method call API
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networkd: actually always use AddressFamilyBoolean as the bit mask it is
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set_consume() does not return -EEXIST, but 0, in case the key is already
in the Set.
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This reverts commit 46be6129d3e52556eb0f2ae4d07818f9f3f7af7a.
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If cryptsetup is called with a source device as argv[3], then craft the
ID for the password agent with a unique device path.
If possible "/dev/block/<maj>:<min>" is used, otherwise the original
argv[3] is used.
This enables password agents like petera [1] to provide a password
according to the source device. The original ID did not carry enough
information and was more targeted for a human readable string, which
is specified in the "Message" field anyway.
With this patch the ID of the ask.XXX ini file looks like this:
ID=cryptsetup:/dev/block/<maj>:<min>
[1] https://github.com/npmccallum/petera
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The documentation claims hwdb entries may be placed in the volatile
/run/udev/hwdb.d directory but nothing actually looked at it.
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tree-wide: remove spurious space
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kmod-setup: split warn flags
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Traditionally, we used to warn about ipv6 being a module or being
unavailable. This was changed in b4aa82f16 ("kmod-setup: don't warn
when ipv6 can't be loaded") in a way that neither of the two conditions
will cause a log message.
Now, while running a setup without any IPv6 is completely fine and
shouldn't cause any warning, we should still warn about ipv6 being a
module instead of built-in.
To achieve this, split the boolean warn flag into two: one for a
feature not being built-in but shipped as a module, and one to
print an error when a module is entirely unavailable.
We will, however, still warn if kmod returns anything else than
-ENOENT in the attempt of loading the module, and at the very least,
turn the message into a debug log.
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set_consume(done, x) consumes x with free(x)
but
mount(…, x, …) uses it afterwards.
coverity CID 1299006
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kmod-setup: don't warn when ipv6 can't be loaded (FDO bug #87475)
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Signed-off-by: Gianpaolo Macario <gmacario@gmail.com>
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Right now we always pass KDBUS_ITEM_ATTACH_FLAGS_RECV to
KDBUS_CMD_BUS_MAKE, effectively forcing every bus connection to do the
same during KDBUS_CMD_HELLO. This used to be a workaround to make sure all
metadata is always present. However, we refrained from that approach and
intend to make all metadata collection solely rely on /proc access
restrictions. Therefore, there is no need to force the send-flags mask on
newly created buses.
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Not having IPv6 is a valid setup. Let's not print a warning in that
case.
Addresses:
https://bugs.freedesktop.org/show_bug.cgi?id=87475
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The previous implementation of user_elect_display() could easily end up
overwriting the user’s valid graphical session with a new TTY session.
For example, consider the situation where there is one session:
c1, type = SESSION_X11, !stopping, class = SESSION_USER
it is initially elected as the user’s display (i.e. u->display = c1).
If another session is started, on a different VT, the sessions_by_user
list becomes:
c1, type = SESSION_X11, !stopping, class = SESSION_USER
c2, type = SESSION_TTY, !stopping, class = SESSION_USER
In the previous code, graphical = c1 and text = c2, as expected.
However, neither graphical nor text fulfil the conditions for setting
u->display = graphical (because neither is better than u->display), so
the code falls through to check the text variable. The conditions for
this match, as u->display->type != SESSION_TTY (it’s actually
SESSION_X11). Hence u->display is set to c2, which is incorrect, because
session c1 is still valid.
Refactor user_elect_display() to use a more explicit filter and
pre-order comparison over the sessions. This can be demonstrated to be
stable and only ever ‘upgrade’ the session to a more graphical one.
https://bugs.freedesktop.org/show_bug.cgi?id=90769
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fstab-generator: cescape device name in root-fsck service
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This made sense when systemd ran on older kernels, nowdays not so much.
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Sync with upstream.
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sd-event: don't touch fd's accross forks
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core/mount: skip incomplete mountinfo entries
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We protect most of the API from use accross forks, but we still allow both
sd_event and sd_event_source objects to be unref'ed. This would cause
problems as it would unregister sources from the underlying eventfd, hence
also affecting the original instance in the parent process.
This fixes the issue by not touching the fds on unref when done accross a fork,
but still free the memory.
This fixes a regression introduced by
"udevd: move main-loop to sd-event": 693d371d30fee
where the worker processes were disabling the inotify event source in the
main daemon.
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Skip /proc/mountinfo entries for which libmount returns a NULL pointer
for 'source' or 'target'. This happened on Semaphore CI's build servers
when the test suite is run.
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logind: Save the user’s state when a session enters SESSION_ACTIVE
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logind: Add a udev rule to tag all DRM cards with master-of-seat
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copy_bytes() tries to do the write in chunks, but ima kernel code
needs every rule to be written in one write. Writing the whole file
at once avoids the issue.
http://lists.freedesktop.org/archives/systemd-devel/2015-June/032623.html
http://sourceforge.net/p/linux-ima/mailman/message/34145236/
https://bugzilla.redhat.com/show_bug.cgi?id=1226948
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libudev: enumerate - accept NULL parameters in add_match()
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systemctl: Use /usr/bin/editor if available
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This was a regression introduced when moving to sd-device.
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We unescape ExecStart line when parsing it, so escape device name
before adding it to unit file.
fixes #50
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If the EDITOR environment variable is not set, the Debian policy
recommends to use the /usr/bin/editor program as default editor.
This file is managed via the dpkg alternatives mechanism and typically
used in Debian/Ubuntu and derivatives to configure the default editor.
See section 11.4 of the Debian policy [1].
Therefor prefer /usr/bin/editor over specific editors if available.
[1] https://www.debian.org/doc/debian-policy/ch-customized-programs.html
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Fix a regression caused by 4034a06d ("util: rework word parsing and c
unescaping code") which broke octal escape sequences.
The reason for this breakage is that cunescape_one() expects 4 characters
in an octal encoding, which is a stray left-over from the old code which
operated on different variables to make the length check.
While at it, add a test case to prevent the same thing from happening
again.
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Now that listen_fds() have been split out, we can safely move the allocation
of the manager object after doing the forking (the fork is done to notify legcay
init-systems that the fds are ready).
Subsequently, we can merge manager_listen() back into managre_new().
This entails a minor behaviour change: the application of permissions to
static device nodes now happens after the fork (but still before notifying
systemd about being ready).
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This will simply silently fail on non-systemd systems, so there is no reason
to make it conditional.
Also make it clear that we notify systemd about being ready as the last step
before starting the event loop, whereas the forking might need to happen
earlier.
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This will allow us in a follow-up commit to listen to fds before forking and
still allocate the manager only after the fork.
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Hide the differenec in listen_fds, by simply opening the fds
here in case they are not passed in.
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udev_monitor_new_from_netlink_fd
This allows a fd to be created and configured as part of one monitor, to be passed in
to create a second monitor without having to redo any of the configuration.
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This should have no behavioural change, but it is odd to tie the cgroup cleaning to
whether or not we are passed sockets.
The point really is if we are guaranteed to be in a dedicated cgroup, so instead
check for our parent being PID1 (we already implicitly only do this on systemd
systems).
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If they are passed from PID1 this is not necessary.
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We used to block all signals, and restore the original signal mask before exec'ing
external processes.
Now we just block the signals we care about and unconditionally unblock all signals
before exec'ing.
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