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If we call EPOLL_CTL_DEL, we *REALLY* expect the file-descriptor to be
present in that given epoll-set. We actually track such state via our
s->io.registered flag, so it better be true.
Make sure if that's not true, we treat it similar to assert_return() (ie.,
print a loud warning).
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nspawn: check if kernel supports userns as early as possible
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If the kernel do not support user namespace then one of the children
created by nspawn parent will fail at clone(CLONE_NEWUSER) with the
generic error EINVAL and without logging the error. At the same time
the parent may also try to setup the user namespace and will fail with
another error.
To improve this, check if the kernel supports user namespace as early
as possible.
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This fixes:
Jun 16 16:00:20 tomegun-x2402 systemd-tmpfiles[233]: rm_rf(/var/lib/machines/.#fedora.lck): Not a directory
Jun 16 16:00:20 tomegun-x2402 systemd-tmpfiles[233]: rm_rf(/var/lib/machines/.#Fedora-Cloud-Base-20141203-21.x86_64.raw.lck): Not a directory
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hashmap: fix iterators to not skip entries
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signal-util: fix incorrect argument of va_start
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sd-bus: use proper cleanup macro
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The last argument of the function before the vargs is "old" not "how".
warning: second parameter of ‘va_start’ not last named argument
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everywhere: actually make use of DUAL_TIMESTAMP_NULL macro
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logind: expose "Docked" bool as property on the bus
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We know the state anyway, let's expose it in the bus. It's useful for
debugging at least, but it might be useful for DEs too.
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Let's use it as initializer where appropriate.
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everywhere: port everything to sigprocmask_many() and friends
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This ports a lot of manual code over to sigprocmask_many() and friends.
Also, we now consistly check for sigprocmask() failures with
assert_se(), since the call cannot realistically fail unless there's a
programming error.
Also encloses a few sd_event_add_signal() calls with (void) when we
ignore the return values for it knowingly.
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Remove old temporary snapshots, but only at boot. Ideally we'd have
"self-destroying" btrfs snapshots that go away if the last last
reference to it does. To mimic a scheme like this at least remove the
old snapshots on fresh boots, where we know they cannot be referenced
anymore. Note that we actually remove all temporary files in
/var/lib/machines/ at boot, which should be safe since the directory has
defined semantics. In the root directory (where systemd-nspawn
--ephemeral places snapshots) we are more strict, to avoid removing
unrelated temporary files.
This also splits out nspawn/container related tmpfiles bits into a new
tmpfiles snippet to systemd-nspawn.conf
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This adds a "char *extra" parameter to tempfn_xxxxxx(), tempfn_random(),
tempfn_ranomd_child(). If non-NULL this string is included in the middle
of the newly created file name. This is useful for being able to
distuingish the kind of temporary file when we see one.
This also adds tests for the three call.
For now, we don't make use of this at all, but port all users over.
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just created
We already had a safety check in place that we don't end up descending
to the original subvolume again, but we also should avoid descending in
the newly created one.
This is particularly important if we make a snapshot below its source,
like we do in "systemd-nspawn --ephemeral -D /".
Closes https://bugs.freedesktop.org/show_bug.cgi?id=90803
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The names fw-util.[ch] are too ambiguous, better rename the files to
firewall-util.[ch]. Also rename the test accordingly.
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login: fix potential null pointer dereference
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nspawn: make seccomp loading errors non-fatal
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seccomp_load returns -EINVAL when seccomp support is not enabled in the
kernel [1]. This should be a debug log, not an error that interrupts nspawn.
If the seccomp filter can't be set and audit is enabled, the user will
get an error message anyway.
[1]: http://man7.org/linux/man-pages/man2/prctl.2.html
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Fix CID 1304686: Dereference after null check (FORWARD_NULL)
However, this commit does not fix any bug in logind. It helps to keep
the elect_display_compare() function generic.
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udevd: event - don't log about failures of spawn processes when this …
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tree-wide: fix memory leaks in users of bus_map_all_properties()
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Currently, the HASHMAP iterators stop at the first NULL entry in a
hashmap. This is non-obvious and breaks users like sd-device, which
legitimately store NULL values in a hashmap.
Fix all the iterators by taking a pointer to the value storage, instead of
returning it. The iterators now return a boolean that tells whether the
end of the list was reached.
Current users of HASHMAP_FOREACH() are *NOT* changed to explicitly check
for NULL. If it turns out, there were users that inserted NULL into
hashmaps, but didn't properly check for it during iteration, then we
really want to find those and fix them.
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If you use bus_map_all_properties(), you must be aware that it might
touch output variables even though it may fail. This is, because we parse
many different bus-properties and cannot tell how to clean them up, in
case we fail deep down in the parser.
Fix all callers of bus_map_all_properties() to correctly cleanup any
context structures at all times.
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No functional change, but looked weird.
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Improve tun/tap logging by using the new log_*errno*() functions that set 'errno' explicitly. Also fix a bunch of incorrect errno/r confusions.
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Rename sd_rtnl to sd_netlink to prepare for further netlink-protocol support. Anything rtnl specific still uses the sd_rtnl prefix, but the generic parts (including the bus and message objects) are now called sd_netlink.
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Replaces strerror() usage with log_netdev_error_errno()
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Split netlink-socket.c and rtnl-message.c from netlink-message.c.
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AF_NETLINK is not write-buffered, so this was actually never used.
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ima-setup: write policy one line at a time
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IPForwarding=kernel v3
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CID 996302: Error handling issues (CHECKED_RETURN)
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In 5a8bcb674f71a20e95df55319b34c556638378ce, IPForwarding was introduced
to set forwarding flags on interfaces in .network files. networkd sets
forwarding options regardless of the previous setting, even if it was
set by e.g. sysctl. This commit creates a new option for IPForwarding,
"kernel", that preserves the sysctl settings rather than always setting
them.
See https://bugs.freedesktop.org/show_bug.cgi?id=89509 for the initial
bug report.
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sd-rtnl: make joining broadcast groups implicit
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networkd: bond - only set packets_per_slave on balance-rr mode
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journald: do not strip leading whitespace from messages
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-ENOSYS is returned from kmod_module_probe_insert_module() if a module isn't
available, not -ENOENT. Don't spit out a warning in that case unless the
warn_if_unavailable flag is set.
Also factor out the condition into an own variable for better readability.
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Lets us simplify the function and drop SO_PASSCRED.
Thanks to Alexander Larsson and David Herrmann.
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ima_write_policy() expects data to be written as one or more
rules, no more than PAGE_SIZE at a time. Easiest way to ensure
that we are not splitting rules is to read and write one line at
a time.
https://bugzilla.redhat.com/show_bug.cgi?id=1226948
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(Also, downgrade message from LOG_ERROR to LOG_WARNING, after all we
don't care much and just proceed)
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