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Also, move a couple of more path-related functions to path-util.c.
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Also, rename it take_etc_passwd_lock(), in order to make it more
expressive.
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We don't need two functions that do essentialy the same, hence drop
path_get_parent(), and stick to dirname_malloc(), but move it to
path-util.[ch].
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socket-util.[ch]
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There are more than enough to deserve their own .c file, hence move them
over.
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string-util.[ch]
There are more than enough calls doing string manipulations to deserve
its own files, hence do something about it.
This patch also sorts the #include blocks of all files that needed to be
updated, according to the sorting suggestions from CODING_STYLE. Since
pretty much every file needs our string manipulation functions this
effectively means that most files have sorted #include blocks now.
Also touches a few unrelated include files.
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This really deserves its own file, given how much code this is now.
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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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Simplify the call, and add dir_is_populated() as inverse call, in order
to make some checks easier to read.
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nspawn: skip /sys-as-tmpfs if we don't use private-network
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Since v3.11/7dc5dbc ("sysfs: Restrict mounting sysfs"), the kernel
doesn't allow mounting sysfs if you don't have CAP_SYS_ADMIN rights over
the network namespace.
So the mounting /sys as a tmpfs code introduced in
d8fc6a000fe21b0c1ba27fbfed8b42d00b349a4b doesn't work with user
namespaces if we don't use private-net. The reason is that we mount
sysfs inside the container and we're in the network namespace of the host
but we don't have CAP_SYS_ADMIN over that namespace.
To fix that, we mount /sys as a sysfs (instead of tmpfs) if we don't use
private network and ignore the /sys-as-a-tmpfs code if we find that /sys
is already mounted as sysfs.
Fixes #1555
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A bit snake-oilish, but can't hurt.
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This adds support for naming file descriptors passed using socket
activation. The names are passed in a new $LISTEN_FDNAMES= environment
variable, that matches the existign $LISTEN_FDS= one and contains a
colon-separated list of names.
This also adds support for naming fds submitted to the per-service fd
store using FDNAME= in the sd_notify() message.
This also adds a new FileDescriptorName= setting for socket unit files
to set the name for fds created by socket units.
This also adds a new call sd_listen_fds_with_names(), that is similar to
sd_listen_fds(), but also returns the names of the fds.
systemd-activate gained the new --fdname= switch to specify a name for
testing socket activation.
This is based on #1247 by Maciej Wereski.
Fixes #1247.
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It's pretty untypical for our parsing functions to log on their own.
Clarify in the name that this one does.
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This also allows us to drop build.h from a ton of files, hence do so.
Since we touched the #includes of those files, let's order them properly
according to CODING_STYLE.
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This is highly complex code after all, we really should make sure to
only keep one implementation of this extremely difficult function
around.
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Also, make it slightly more powerful, by accepting a flags argument, and
make it safe for handling if more than one cmsg attribute happens to be
attached.
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Use the new code in config_parse_cpu_affinity2.
Tested by modifying CPUAffinity=... setting in /etc/systemd/system.conf
and reloading the daemon, then checking ^Cpus_allowed in /proc/1/status
to confirm the correct CPU mask is in place.
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A variety of mostly unrelated fixes
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No need to keep both functions, settle on uid_is_valid() for everything.
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Of course, because Linux is broken we cannot actually really order it,
and must keep linux/fs.h after sys/mount.h... Yay for Linux!
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Never log when we fail due to OOM when translating enums, let the caller
do that. Translating basic types like enums should be something where
the caller logs, not the translatior functions.
Return -1 when NULL is passed to all enum parser functions.
The non-fallback versions of the enum translator calls already handle
NULL as failure, instead of hitting an assert, and we should do this
here, too.
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Introduce two new helpers that send/receive a single fd via a unix
transport. Also make nspawn use them instead of hard-coding it.
Based on a patch by Krzesimir Nowak.
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It's nicer if the assertion failure message from a bad use of xsprintf
actually mentions xsprintf instead of the expression the macro is
implemented as.
The assert_message_se macro was added in the previous commit as an
internal helper, but it can also be used for customizing assertion
failure messages like in this case.
Example:
char buf[10];
xsprintf(buf, "This is a %s message.\n", "long");
Before:
Assertion '(size_t) snprintf(buf, ELEMENTSOF(buf), "This is a %s
message.\n", "long") < ELEMENTSOF(buf)' failed at foo.c:6, function
main(). Aborting.
After:
Assertion 'xsprintf: buf[] must be big enough' failed at foo.c:6,
function main(). Aborting.
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off_t is a really weird type as it is usually 64bit these days (at least
in sane programs), but could theoretically be 32bit. We don't support
off_t as 32bit builds though, but still constantly deal with safely
converting from off_t to other types and back for no point.
Hence, never use the type anymore. Always use uint64_t instead. This has
various benefits, including that we can expose these values directly as
D-Bus properties, and also that the values parse the same in all cases.
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util: introduce safe_fclose() and port everything over to it
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