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We need to be sure that the size returned here actually matches what we will read with recvmsg() next
Fixes #2984
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Fix "preset-all" with dangling symlinks and install-section hint emitted too eagerly
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The nfs mount option bg will not be supported with systemd.
Reasons are discussed here:
https://github.com/systemd/systemd/pull/3169
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fsck determines wheter an automatic quotacheck should be executed.
Hence fsck service needs to run before quotacheck service.
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_const_ means that the caller can assume that the function will return the same
result every time (and will not modify global memory). special_glyph() meets
this: even though it depends on global memory, that part of global memory is
not expected to change. This allows the calls to special_glyph() to be
optimized, even if -flto is not used.
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That function doesn't draw anything on it's own, just returns a string, which
sometimes is more than one character. Also remove "DRAW_" prefix from character
names, TREE_* and ARROW and BLACK_CIRCLE are unambigous on their own, don't
draw anything, and are always used as an argument to special_glyph().
Rename "DASH" to "MDASH", as there's more than one type of dash.
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It's quite a bit shorter and just as readable.
(The full sentence with "pointing to" was added to replace a text that used
"ln -s %s %s". Using the "ln" syntax is indeed unclear, because it's not
obvious which is the source and which is the target, and because symlink(2)
uses the opposite order to ln(1). But with the unicode arrow there should
be no ambiguity.)
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Executing 'systemctl enable' on the same unit twice would cause
a warning about a missing [Install] section to be printed. To avoid
this, count all symlinks that "would" be created, and return 1
no matter if we actually created a symlink or skipped creation because
it already exists.
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This fixes 'preset-all' with a unit that is a dangling symlink.
$ systemctl --root=/ preset-all
Unit syslog.service is an alias to a unit that is not present, ignoring.
Unit auditd.service is masked, ignoring.
Unit NetworkManager.service is masked, ignoring.
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$ systemctl --root=/ preset foobar.service
Cannot find unit foobar.service.
Failed to preset: No such file or directory.
$ systemctl --root=/ preset foobar@.service
Cannot find unit foobar@.service.
Failed to preset: No such file or directory.
$ systemctl --root=/ preset foobar@blah.service
Cannot find unit foobar@blah.service or foobar@.service.
Failed to preset: No such file or directory.
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introduce simple "network zones" concept to nspawn
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Let's make sure we don't remove veth links that existed before nspawn was
invoked.
https://github.com/systemd/systemd/pull/3209#discussion_r62439999
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Fix-up for 93e2822684b37a4eeef03775a7a1f44a3055d7b2
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network interfaces
This changes the default .network files we ship for nspawn containers to set
EmitLLDP=customer-bridge in order to allow propagation of the LLDP packets
across bridges. This is useful so that "networkctl status" shows all peers
connected to a virtual container network, collecting this data via LLDP. This
is safe since the default configuration for these interfaces does not bridge
these links to external interfaces, but relies on IP routing for this.
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This allows selecting the propagation level of emitted LLDP packets
(specifically: the destination MAC address of the packets). This is useful
because it allows generating LLDP packets that optionally cross certain types
of bridges.
See 802.11ab-2009, Table 7-1 for details.
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--network-zone=
This way, they "just work", similar to --network-veth behaves, as long as
networkd is enabled and running on all involved nodes.
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This adds a new concept of network "zones", which are little more than bridge
devices that are automatically managed by nspawn: when the first container
referencing a bridge is started, the bridge device is created, when the last
container referencing it is removed the bridge device is removed again. Besides
this logic --network-zone= is pretty much identical to --network-bridge=.
The usecase for this is to make it easy to run multiple related containers
(think MySQL in one and Apache in another) in a common, named virtual Ethernet
broadcast zone, that only exists as long as one of them is running, and fully
automatically managed otherwise.
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Make use of this in nspawn at a couple of places. A later commit should port
more code over to this, including networkd.
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networkd
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Some small fixes to make it easier to run tests and fix failure in TEST-{02,08}
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In this test /etc/fstab is replaced by -.mount unit. This causes
systemd-remount-fs.service to not remount / rw, which in turn causes various
failures becuase /var is not writable. In particular
systemd-tmpfiles-setup.service reports many failures. This is something
to possibly fix on its own (see https://github.com/systemd/systemd/issues/791);
in the meanwhile let's fix this test so that it doesn't fail, since the
point of the test is to check aliases on mount units, and not a ro root.
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systemd-udev generated an insane amount of log output at debug level.
It would break TEST-02-CRYPTSETUP by filling the overflowing the disk
(which seems to be a bug in itself!).
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It has been replaced by --state=failed.
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WARNING: Image format was not specified for
'/var/tmp/systemd-test.tGi3od/rootdisk.img' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write
operations on block 0 will be restricted. Specify the 'raw' format
explicitly to remove the restrictions.
Also use unsafe caching mode, we don't care about data integrity here.
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don't reopen socket fds when reloading the daemon
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more dhcp fixes
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Cgroup fixes.
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News and other small cleanups
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core: use an AF_UNIX/SOCK_DGRAM socket for cgroup agent notification
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"0 units listed." is still printed.
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Coverity was complaing, but it was a false positive (CID #1354669).
Nevertheless, it's better to rewrite the code so that units is never
null.
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core: expose TriggerLimitIntervalUSec, dump TriggerLimitIntervalSec and TriggerLimitBurst too
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Minor fixes and .po updates
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Before:
$ systemctl show --property TriggerLimitIntervalSec test.socket
TriggerLimitIntervalSec=2000000
After:
$ systemctl show --property TriggerLimitIntervalUSec test.socket
TriggerLimitIntervalUSec=2s
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Fixes: #3194
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Make the XML validate again.
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