Some kdbus_flag and memfd related parts are left behind, because they
are entangled with the "legacy" dbus support.
test-bus-benchmark is switched to "manual". It was already broken before
(in the non-kdbus mode) but apparently nobody noticed. Hopefully it can
be fixed later.
This moves pretty much all uses of getpid() over to getpid_raw(). I
didn't specifically check whether the optimization is worth it for each
replacement, but in order to keep things simple and systematic I
switched over everything at once.
This introduces {State,Cache,Log,Configuration}Directory= those are
similar to RuntimeDirectory=. They create the directories under
/var/lib, /var/cache/, /var/log, or /etc, respectively, with the mode
specified in {State,Cache,Log,Configuration}DirectoryMode=.
This also fixes#6391.
If you specify "x-systemd.device-timeout" for an NFS mount
point, you get no warning and a meaningless device unit
dependency created.
Better to have a warning and no dependency.
I messed up when adding the definitions in 4278d1f531.
Unfortunately I didn't have the hardware at hand and went by
looking at the kernel headers.
(cherry picked from commit 53196fafcb7b24b45ed4f48ab894d00a24a6d871)
"Failed to add rule for system call access, ignoring: Numerical argument out of domain"
is confusing. Make that "... system call access() / 238".
(cherry picked from commit 977dc6ca5acb8069a2966ec63e7378576bc2ca51)
generator_add_symlink() is extended to ignore EEXIST. This should be fine
for all existing callers.
There's a small difference in behaviour when adding symlinks in sysv-generator:
the message is more generic and does not include ", ignored". But creation of
symlinks shouldn't ever fail except if things are very wrong, so in practice
this shouldn't matter.
Test needed updating: os.path.exists(os.readlink(link)) only works if the link
is absolute (or if we are in the right directory). Let's just use
os.path.exists(link), which properly tests that the symlink target exists.
https://tools.ietf.org/html/rfc5891#section-4.2.3.1 says that
> The Unicode string MUST NOT contain "--" (two consecutive hyphens) in the third
> and fourth character positions and MUST NOT start or end with a "-" (hyphen).
This means that libidn2 refuses to encode such names.
Let's just resolve them without trying to use IDN.
It seems that there's a common pattern among the various generators. Let's add
a helper function for it and make use of it in cryptsetup-generator.
This fixes a bunch of theoretical memleaks in error paths, since *to wasn't
generally freed properly. Not thath it matters.
e268b81e moved an fflush() from output_json() to the generic
output_journal(), when it probably should have deleted all fflush()
calls from logs-show.c altogether.
The caller supplies the FILE * to these functions, and should be in
charge of flushing as needed. The current implementation essentially
defeats any buffering stdio was bringing to the table, resulting in
extraneous tiny write() calls in commands like `journalctl -b`.
This commit removes the fflush() call from output_journal(), and adds
them to journalctl before waiting for more entries and at completion.
This way in the hot path when journalctl loops on entries stdio can
combine multiple entries into bulkier write() calls.
Like I said in the previous commit, such values do not seem to appear in normal
use, but it's pretty hard to prove that all paths to assign values properly
check that they contain no spaces. So just in case some slip through, replace
values with spaces (in case of single-valued properties) or spaces and newlines
(in case of array proprties) with "[unprintable]". We were already doing it
in case of properties which we didn't know how to print, so this fits in well.
The advantage is the previous code which used escaping that a) this is easier
to spot, b) does not mess up printing of properties which were properly escaped
already.
v2:
- add comments
This extends 2d79a0bbb9 to the kernel
command line parsing.
The parsing is changed a bit to only understand "0" as infinity. If units are
specified, parse normally, e.g. "0s" is just 0. This makes it possible to
provide a zero timeout if necessary.
Simple test is added.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1462378.
This reverts commit 27e9c5af81.
Property values already use escaping, so escaping them a second time is
confusing. It also should be mostly unnecessary: we take care to make property
values only contains strings which (after the initial escaping) are printable
and parseable without any futher escaping.
Before revert:
$ systemctl list-dependencies 'dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device'
dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device
● ├─dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.swap
● └─systemd-cryptsetup@luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.service
$ systemctl show -p Wants,Requires 'dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device'
Requires=systemd-cryptsetup@luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.service
Wants=dev-mapper-luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.swap
Difference between systemctl show before revert and now:
-Slice=system-systemd\x5cx2dcryptsetup.slice
+Slice=system-systemd\x2dcryptsetup.slice
-Id=systemd-cryptsetup@luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.service
+Id=systemd-cryptsetup@luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.service
-Names=systemd-cryptsetup@luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.service
+Names=systemd-cryptsetup@luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.service
-Requires=system-systemd\x5cx2dcryptsetup.slice
+Requires=system-systemd\x2dcryptsetup.slice
-BindsTo=dev-mapper-luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.device dev-disk-by\x5cx2duuid-8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.device
+BindsTo=dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device dev-disk-by\x2duuid-8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device
-RequiredBy=dev-mapper-luks\x5cx2d8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.device cryptsetup.target
+RequiredBy=dev-mapper-luks\x2d8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device cryptsetup.target
-WantedBy=dev-disk-by\x5cx2duuid-8db85dcf\x5cx2d6230\x5cx2d4e88\x5cx2d940d\x5cx2dba176d062b31.device
+WantedBy=dev-disk-by\x2duuid-8db85dcf\x2d6230\x2d4e88\x2d940d\x2dba176d062b31.device
This patch is a bit more complex thant I hoped. In particular the single
IOScheduling= property exposed on the bus is split up into
IOSchedulingClass= and IOSchedulingPriority= (though compat is
retained). Otherwise the asymmetry between setting props and getting
them is a bit too nasty.
Fixes#5613
For now, let's just special-case this in the sources. If more partition
types like this show up we should probably find some other solution.
Fixes: #5806
Three binaries would fail to link when ld.bfd was used and link-udev-shared was
false. Add -pthreads (again) to the failing binaries and synchronize the
dependency list between libsystemd-shared .a and .so versions.
Apart from allowing the build to succeed, this shouldn't have much effect becuase
systemd-networkd was already using pthreads.
Fixes#5828.
Also called "ANSI-C Quoting" in info:(bash) ANSI-C Quoting.
The escaping rules are a POSIX proposal, and are described in
http://austingroupbugs.net/view.php?id=249. There's a lot of back-and-forth on
the details of escaping of control characters, but we'll be only using a small
subset of the syntax that is common to all proposals and is widely supported.
Unfortunately dash and fish and maybe some other shells do not support it (see
the man page patch for a list).
This allows environment variables to be safely exported using show-environment
and imported into the shell. Shells which do not support this syntax will have
to do something like
export $(systemctl show-environment|grep -v '=\$')
or whatever is appropriate in their case. I think csh and fish do not support
the A=B syntax anyway, so the change is moot for them.
Fixes#5536.
v2:
- also escape newlines (which currently disallowed in shell values, so this
doesn't really matter), and tabs (as $'\t'), and ! (as $'!'). This way quoted
output can be included directly in both interactive and noninteractive bash.
this patch makes it possible to configure a vlan aware bridge without the
PVID. To configure no PVID set DefaultPVID=none in the [BridgeVLAN] section.
fixes#5716
This adds two options that are useful for user units. In particular, it
is useful to check ConditionUser=!0 to not start for the root user.
Closes: #5187
All those uses were correct, but I think it's better to be explicit.
Using implicit errno is too error prone, and with this change we can require
(in the sense of a style guideline) that the code is always specified.
Helpful query: git grep -n -P 'log_[^s][a-z]+\(.*%m'
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.
This reverts commit 6355e75610.
The previously mentioned commit inadvertently broke a lot of SELinux related
functionality for both unprivileged users and systemd instances running as
MANAGER_USER. In particular, setting the correct SELinux context after a User=
directive is used would fail to work since we attempt to set the security
context after changing UID. Additionally, it causes activated socket units to
be mislabeled for systemd --user processes since setsockcreatecon() would never
be called.
Reverting this fixes the issues with labeling outlined above, and reinstates
SELinux access checks on unprivileged user services.
libidn2 2.0.0 supports IDNA2008, in contrast to libidn which supports IDNA2003.
https://bugzilla.redhat.com/show_bug.cgi?id=1449145
From that bug report:
Internationalized domain names exist for quite some time (IDNA2003), although
the protocols describing them have evolved in an incompatible way (IDNA2008).
These incompatibilities will prevent applications written for IDNA2003 to
access certain problematic domain names defined with IDNA2008, e.g., faß.de is
translated to domain xn--fa-hia.de with IDNA2008, while in IDNA2003 it is
translated to fass.de domain. That not only causes incompatibility problems,
but may be used as an attack vector to redirect users to different web sites.
v2:
- keep libidn support
- require libidn2 >= 2.0.0
v3:
- keep dns_name_apply_idna caller dumb, and keep the #ifdefs inside of the
function.
- use both ±IDN and ±IDN2 in the version string
We expect that if socket() syscall is available, seccomp works for that
architecture. So instead of explicitly listing all architectures where we know
it is not available, just assume it is broken if the number is not defined.
This should have the same effect, except that other architectures where it is
also broken will pass tests without further changes. (Architectures where the
filter should work, but does not work because of missing entries in
seccomp-util.c, will still fail.)
i386, s390, s390x are the exception — setting the filter fails, even though
socket() is available, so it needs to be special-cased
(https://github.com/systemd/systemd/issues/5215#issuecomment-277241488).
This remove the last define in seccomp-util.h that was only used in test-seccomp.c. Porting
the seccomp filter to new architectures should be simpler because now only two places need
to be modified.
RestrictAddressFamilies seems to work on ppc64[bl]e, so enable it (the tests pass).
This function is internal to systemd code, so external users of libudev
will not see those log messages. I think this is better. If we want to
allow that, the function could be put in libudev and exported.
v2: check that the string is more than one char before stripping quotes
