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This is quite a lot of code these days, hence move it to its own source
file.
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Let's introduce a common function that makes relative paths absolute and
warns about any errors while doing so.
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get_current_dir_name() can return a variety of errors, not just ENOMEM,
hence don't blindly turn its errors to ENOMEM, but return correct errors
in path_make_absolute_cwd().
This trickles down into a couple of other functions, some of which
receive unrelated minor fixes too with this commit.
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Modernize the code a bit:
- Get rid of FOREACH_WORD_SEPARATOR() loop in favour of a
extract_first_word() loop.
- Remove find_binary()'s "local" flag. It's not reasonably possible to
look for binaries on remote systems, we hence should not pretend we
could.
- When we cannot find a suitable binary, return the last error returned
from access() rather than ENOENT unconditionally.
- Rework fsck_exists() and mkfs_exists() to return 1 on success, 0 if
the implementation is missing and negative on real errors. This is
more like we do it in other functions.
- Make sure we also detect direct fsck symlinks to "true", rather than
just absolute ones to /bin/true.
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This option specifies the label to assign the root of the file system if
it lacks the Smack extended attribute. Note that this option will be
ignored if kernel does not support the Smack feature by runtime
checking.
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tmpfiles: simplify mountpoint detection
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journal: s/Envalid/Invalid/
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No functional change. Just a simplification. A || (!A && B) is
the same as A || B
Introduced in 78a92a5a2306709e4587e332728a76901323ade9
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Limit test-compress-benchmark to approx. 12 s of runtime
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We were compressing unitialized memory, which should not result in
any problems, but is inelegant.
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If both lz4 and xz are enabled, this results in a limit of
2×3×2 s ~= 12 s runtime.
Previous implementation started with really small buffer sizes. When
combined with a short time limit this resulteded in abysmal results for xz.
It seems that the initialization overead is really significant for small
buffers. Since xz will not be used by default anymore, this does not
seem worth fixing. Instead buffer sizes are changed to run a
pseudo-random non-repeating pattern. This should allow reasonable testing
for all buffer sizes. For testing, both runtime and the buffer size seed
can be specified on the command line. Sufficiently large runtime allows
all buffer sizes up to 1MB to be tested.
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util: Replace state with separate booleans in extract_first_word
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core: use extract_first_word for namespace parsing
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journalctl: clarify -q option
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btrfs quota beef up and various other unrelated changes
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This simplifies the logic and uniformizes the way single and double
quotes are handled. In the end, the code is about 40 lines shorter.
Tested by running the excellent test cases from test-util. Also
installed the systemd binaries including this patch and booted a
system with it, everything looked normal.
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-q suppresses info messages too
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see https://github.com/systemd/systemd/pull/1632#issuecomment-149903791
We should port this loop over to extract_first_word(), too.
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Only callback on error when the statemachine is in a truly broken state. This
is now only the case when we fail to rearm a timer.
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This is unused, and in the future we will pass prefixes and prefixlengths directly
to the callbacks when needed rather than having to search for them.
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This is no longer used.
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The caller of the library is no longer notified, so triggering a timer
just to clean up is not necessary. Instead check for and clean up
invalid prefixes lazily.
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This follows the coding style, and allows some simplification to the rest of the code.
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The caller should push any lifetime information into the kernel and let the kernel handle
prefix expiration.
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There is no need to assign valuse to the states. Also add _INVALID and _MAX,
even though these are not used, it keeps it consistent.
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This ressurects 47d45d3cde45d6545367570264e4e3636bc9e345. We now always use /128 prefixes,
so there is no need for the DHCPv6 code to know about prefixes expiring.
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The routing information should be configured separately by ND, there is no need to
indicate the prefix again in the DHCPv6 addresses.
See discussion and related links at issue #1520.
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Refer to Router Discovery rather than ICMPv6.
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The actual code rename will follow. The reason for the change of name is to make it
simpler and more uniform with how we name other libraries (we don't include the
underlying protocol). The new name also matches the naming in the kernel (which
is particularly relevent here as we expect to let the kernel do some parts of
the protocol and we do others).
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networkd-manager: fix swapped arguments
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fixes Coverity #1328493
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extract_first_word understands "\'string" but doesn't understand "\"string"
fixed this inconsistency.
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Othewise we might follow the symlinks on the host, instead of the
container.
Fixes #1400
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Make sure we acquire CAP_NET_ADMIN if we require virtual networking.
Make sure we imply virtual ethernet correctly when bridge is request.
Fixes: #1511
Fixes: #1554
Fixes: #1590
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using "machinectl set-limit"
Previously, we already accepted "-" as special value for dropping
limits. Add "infinity", as that's what we support for RLIMITs and hence
should support here to. Also add "none" as that's what the btrfs tools
use.
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This allows us to set up the quota group hierarchy in a reasonable way
on btrfs file systems.
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With this change we understand more than just leaf quota groups for
btrfs file systems. Specifically:
- When we create a subvolume we can now optionally add the new subvolume
to all qgroups its parent subvolume was member of too. Alternatively
it is also possible to insert an intermediary quota group between the
parent's qgroups and the subvolume's leaf qgroup, which is useful for
a concept of "subtree" qgroups, that contain a subvolume and all its
children.
- The remove logic for subvolumes has been updated to optionally remove
any leaf qgroups or "subtree" qgroups, following the logic above.
- The snapshot logic for subvolumes has been updated to replicate the
original qgroup setup of the source, if it follows the "subtree"
design described above. It will not cover qgroup setups that introduce
arbitrary qgroups, especially those orthogonal to the subvolume
hierarchy.
This also tries to be more graceful when setting up /var/lib/machines as
btrfs. For example, if mkfs.btrfs is missing we don't even try to set it
up as loopback device.
Fixes #1559
Fixes #1129
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I accidentally broke this a while back when I ported systemctl to the
verbs logic.
Add support for this back.
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Simplify the call, and add dir_is_populated() as inverse call, in order
to make some checks easier to read.
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