We usually seperate case statements within a switch from each other by
empty lines. We also often add an empty line after multi-line function
prototypes, let's do so here too
Also, no trailing ; after }...
That way we can use it in nspawn.
Also, while we are at it, let's rename the call config_parse_rlimit(),
i.e. insert the "r", to clarify what kind of limit this is about.
This makes it behave the same whether there is a blank line or not at
the end of the file. This is also consistent with the behavior of the
shell on a shell script that ends on a trailing backslash at the last
line.
Added tests to test_config_parse(), which only pass if the corresponding
change to config_parse() is included.
It's mostly a wrapper around parse_mtu() but with some nicer logging.
The address family is initialized from the "ltype" parameter, so that
configuration file parser tables can be easily declare it.
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.
I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
Let's use first_word() instead of startswith(), it's more explanatory
and a bit more correct. Also, let's use the return value instead of
adding +9 when looking for the second part of the directive.
.include lines are already deprecated somewhat, and for example
explicitly not mentioned in the documentation for this reason. Let's get
one step further and generatea warning when we encounter them (but still
process them).
Why are they deprecated? Because they are semantically awful — they
complicate stat() based mtime checks for configuration files and they
allow arbitrary loops we currently have zero protection against and
really shouldn't have to have.
Support was killed in kernel 4.15 as well as ethtool 4.13.
Justification was lack of use by drivers and too much of a maintenance burden.
https://www.spinics.net/lists/netdev/msg443815.html
Also moved config_parse_warn_compat to conf-parser.[ch] to fix compile errors.
ISO C does not allow empty statements outside of functions, and gcc
will warn the trailing semicolons when compiling with -pedantic:
warning: ISO C does not allow extra ‘;’ outside of a function [-Wpedantic]
But our code cannot compile with -pedantic anyway, at least because
warning: ISO C does not support ‘__PRETTY_FUNCTION__’ predefined identifier [-Wpedantic]
Without -pedatnic, clang and even old gcc (3.4) generate no warnings about
those semicolons, so let's just drop __useless_struct_to_allow_trailing_semicolon__.
config_parse_join_controllers would free the destination argument on failure,
which is contrary to our normal style, where failed parsing has no effect.
Moving it to shared also allows a test to be added.
And let's make use of it to implement two new unit settings with it:
1. LogLevelMax= is a new per-unit setting that may be used to configure
log priority filtering: set it to LogLevelMax=notice and only
messages of level "notice" and lower (i.e. more important) will be
processed, all others are dropped.
2. LogExtraFields= is a new per-unit setting for configuring per-unit
journal fields, that are implicitly included in every log record
generated by the unit's processes. It takes field/value pairs in the
form of FOO=BAR.
Also, related to this, one exisiting unit setting is ported to this new
facility:
3. The invocation ID is now pulled from /run/systemd/units/ instead of
cgroupfs xattrs. This substantially relaxes requirements of systemd
on the kernel version and the privileges it runs with (specifically,
cgroupfs xattrs are not available in containers, since they are
stored in kernel memory, and hence are unsafe to permit to lesser
privileged code).
/run/systemd/units/ is a new directory, which contains a number of files
and symlinks encoding the above information. PID 1 creates and manages
these files, and journald reads them from there.
Note that this is supposed to be a direct path between PID 1 and the
journal only, due to the special runtime environment the journal runs
in. Normally, today we shouldn't introduce new interfaces that (mis-)use
a file system as IPC framework, and instead just an IPC system, but this
is very hard to do between the journal and PID 1, as long as the IPC
system is a subject PID 1 manages, and itself a client to the journal.
This patch cleans up a couple of types used in journal code:
specifically we switch to size_t for a couple of memory-sizing values,
as size_t is the right choice for everything that is memory.
Fixes: #4089Fixes: #3041Fixes: #4441
This was added to make
https://bugs.freedesktop.org/show_bug.cgi?id=62558 work, which has long
been removed, hence let's revert to the original behaviour and fully
flush out the list when an empty string is assigned.
The condition is on "word", hence we give word instead of rvalue.
An assert would be triggered if !utf8_is_valid(word) is true and
rvalue == NULL, since log_syntax_invalid_utf8 calls utf8_escape_invalid
which calls assert(str).
A test case has been added to test with valid and invalid utf8.
If you reference another unit with an escaped name, the escaped characters
should remain in the extracted word. This used to work correctly prior to
commit 34f253f0.
The problem can be seen when units with escaped names are referenced.
$ cat "/usr/lib/systemd/system/dev-disk-by\x2dlabel-eos\x2dswap.swap"
[Swap]
What=/dev/disk/by-label/eos-swap
[Install]
WantedBy=dev-disk-by\x2dlabel-eos\x2dswap.device
$ systemctl enable "dev-disk-by\x2dlabel-eos\x2dswap.swap"
Created symlink
/etc/systemd/system/dev-disk-byx2dlabel-eosx2dswap.device.wants/dev-disk-by\x2dlabel-eos\x2dswap.swap,
pointing to /usr/lib/systemd/system/dev-disk-by\x2dlabel-eos\x2dswap.swap.
The wants directory should be created with the x2ds escaped with \.
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.
