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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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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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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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basic/ can be used by everything
cannot use anything outside of basic/
libsystemd/ can use basic/
cannot use shared/
shared/ can use libsystemd/
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shared: Drop 'name=' prefix from SYSTEMD_CGROUP_CONTROLLER define.
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It's only marginally shorter then the usual for() loop, but certainly
more readable.
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mask/handlers
Also, when the child is potentially long-running make sure to set a
death signal.
Also, ignore the result of the reset operations explicitly by casting
them to (void).
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When we have a structure like this:
/bin -> /usr/bin
/usr is a mount point
Then path_is_mount_point("/bin", AT_SYMLINK_FOLLOW) needs to look at the pair
/usr/bin and /usr, not at the pair / and /usr/bin, as the latter have different
mount IDs. But we only want to consider the base name, not any parent.
Thus we have to resolve the given path first to get the real parent when
allowing symlinks.
Bug: https://github.com/systemd/systemd/issues/61
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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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set_consume(done, x) consumes x with free(x)
but
mount(…, x, …) uses it afterwards.
coverity CID 1299006
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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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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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systemd-mailing-devs/1433236104-9967-1-git-send-email-m.olbrich@pengutronix.de
missing: add more btrfs defines
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In cgtop,mount-setup,nspawn the name= prefix is hard-coded in the
mount options, and the define is not used.
Everywhere else, we explicitly white-list allow 'name=' prefix to be
used with all controllers, and strip it out to 'normalise' the
controller name. That work is mostly inflicted on us due to 'name='
prefix in the define. Dropping this prefix makes everything more sane
overall.
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Instead of this:
[filename:1] Failed to parse nsec_t value, ignoring: garbage
we show this:
[filename:1] Failed to parse nsec value, ignoring: garbage
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No functional changes.
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This makes path_is_mount_point() consistent with fd_is_mount_point() wrt.
flags.
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Commits 27cc6f166 and f25afeb broke path_is_mount_point() for files (such as
/etc/machine-id → /run/machine-id bind mounts) as with the factorization of
fd_is_mount_point() we lost the parent directory. We cannot determine that from
an fd only as openat(fd, "..") only works for directory fds.
Change fd_is_mount_point() to behave like openat(): It now takes a file
descriptor of the containing directory, a file name in it, and flags (which can
be 0 or AT_SYMLINK_FOLLOW). Unlike name_to_handle_at() or openat(), fstatat()
only accepts the inverse flag AT_SYMLINK_NOFOLLOW and complains with EINVAL
about AT_SYMLINK_FOLLOW; so we need to transform the flags for that fallback.
Adjust rm_rf_children() accordingly (only other caller of fd_is_mount_point()
aside from path_is_mount_point()).
Add test cases for files, links, and file bind mounts (the latter will only
work when running as root). Split out a new test_path_is_mount_point() test
case function as it got significantly larger now.
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Otherwise building faild with kernel headers < v3.16
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In generated systemd-fsck-root.service. This would break if rootprefix
is not /usr/lib/systemd.
[tomegun: flesh out commit message]
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Use strjoina to avoid error handling, and openat to simplify things.
Some fixes on the way:
- ferror does not set errno, so the return value was wrong in some cases
- errors are propagated in more cases
- EFI/systemd was created, but EFI/systemd-boot was deleted
- something is always printed on error
- when checking the version, comparison was done against "systemd-bo" for some reason
- return value was converted from negative to EXIT_SUCCESS/EXIT_FAILURE twice,
resulting in EXIT_SUCCESS all the time
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This makes working with complexly structured documents easy
and more reliable as the parser is not susceptible to
element re-ordering.
Also fixes a bug when the tokenizer would choke after reading
a number.
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Added (sha256) digest validation function
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The hostname(1) tool allows comments in /etc/hostname. Introduce a new
read_hostname_config() in hostname-util which reads a hostname configuration
file like /etc/hostname, strips out comments, whitespace, and cleans the
hostname. Use it in hostname-setup.c and hostnamed and remove duplicated code.
Update hostname manpage. Add tests.
https://launchpad.net/bugs/1053048
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This allows us to ensure that Requisite= dependencies never cause
propagation between units, while Requires= dependencies might.
http://lists.freedesktop.org/archives/systemd-devel/2015-May/031742.html
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All functions should either log the errors they run into, or only return
them in which case the caller should log them.
Make sure this rule is followed, so that each error is logged precisely
once, and neither never, nor more than once.
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Reported by Cristian Rodríguez
http://lists.freedesktop.org/archives/systemd-devel/2015-May/031626.html
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Currently we have no way how to specify dependencies between fstab
entries (or another units) in the /etc/fstab. It means that users are
forced to bypass fstab and write .mount units manually.
The patch introduces new systemd fstab options:
x-systemd.requires=<PATH>
- to specify dependence an another mount (PATH is translated to unit name)
x-systemd.requires=<UNIT>
- to specify dependence on arbitrary UNIT
x-systemd.requires-mounts-for=<PATH ...>
- to specify dependence on another paths, implemented by
RequiresMountsFor=. The option may be specified more than once.
For example two bind mounts where B depends on A:
/mnt/test/A /mnt/test/A none bind,defaults
/mnt/test/A /mnt/test/B none bind,x-systemd.requires=/mnt/test/A
More complex example with overlay FS where one mount point depends on
"low" and "upper" directories:
/dev/sdc1 /mnt/low ext4 defaults
/dev/sdc2 /mnt/high ext4 defaults
overlay /mnt/merged overlay lowerdir=/mnt/low,upperdir=/mnt/high/data,workdir=/mnt/high/work,x-systemd.requires-mounts-for=/mnt/low,x-systemd.requires-mounts-for=mnt/high
https://bugzilla.redhat.com/show_bug.cgi?id=812826
https://bugzilla.redhat.com/show_bug.cgi?id=1164334
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write() can send empty messages, so make sure loop_write() can do the same.
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Given that socket_address_parse() is mostly a "library" call it
shouldn't log on its own, but leave that to its caller.
This patch removes logging from the call in case IPv6 is not available
but and IPv6 address shall be parsed. Instead a new call
socket_address_parse_and_warn() is introduced which first invokes
socket_address_parse() and then logs if necessary.
This should fix "make check" on ipv6-less kernels:
http://lists.freedesktop.org/archives/systemd-devel/2015-April/031385.html
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