| Commit message (Collapse) | Author | Age | Files | Lines |
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Add memory_id program to set properties about the physical memory
devices in the system. This is useful on machines with removable memory
modules to show how the machine can be upgraded, and on all devices to
detect the actual RAM size, without relying on the OS accessible amount.
Closes: #16651
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There are two ways in swich sd_login_* functions acquire data:
some are derived from the cgroup path, but others use the data serialized
by logind.
When the tests are executed under Fedora's mock, without systemd-spawn
but instead in a traditional chroot, test-login gets confused:
the "outside" cgroup path is visible, so sd_pid_get_unit() and
sd_pid_get_session() work, but sd_session_is_active() and other functions
that need logind data fail.
Such a buildroot setup is fairly bad, but it can be encountered in the wild, so
let's just skip the tests in that case.
/* Information printed is from the live system */
sd_pid_get_unit(0, …) → "session-237.scope"
sd_pid_get_user_unit(0, …) → "n/a"
sd_pid_get_slice(0, …) → "user-1000.slice"
sd_pid_get_session(0, …) → "237"
sd_pid_get_owner_uid(0, …) → 1000
sd_pid_get_cgroup(0, …) → "/user.slice/user-1000.slice/session-237.scope"
sd_uid_get_display(1000, …) → "(null)"
sd_uid_get_sessions(1000, …) → [0] ""
sd_uid_get_seats(1000, …) → [0] ""
Assertion 'r >= 0' failed at src/libsystemd/sd-login/test-login.c:104, function test_login(). Aborting.
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In the event where network discovery gets a route with the gateway being
the interfaces local link address, networkd will fail the interface.
systemd-networkd[44319]: br_lan: Configuring route: dst: fdcd:41a4:5559:ec03::/64, src: n/a, gw: fe80::e4da:7eff:fe77:5c5e, prefsrc: n/a, scope: global, table: main, proto: ra, type: unicast
systemd-networkd[44319]: br_lan: Could not set NDisc route or address: Gateway can not be a local address. Invalid argument
systemd-networkd[44319]: br_lan: Failed
systemd-networkd[44319]: br_lan: State changed: configuring -> failed
This patch, instead of allowing the interface to fail, will instead log
the event and skip setting the route.
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logs-show: skip non-utf8 name entries
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25353.
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Currently translated at 67.3% (126 of 187 strings)
Co-authored-by: Luna Jernberg <bittin@reimu.nl>
Translate-URL: https://translate.fedoraproject.org/projects/systemd/master/sv/
Translation: systemd/master
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keszybz/hostnamed-export-hostname-origin-and-simplify-logic
Export hostname origin and simplify logic in hostamed
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In hostnamed this is exposed as a dbus property, and in the logs in both
places.
This is of interest to network management software and such: if the fallback
hostname is used, it's not as useful as the real configured thing. Right now
various programs try to guess the source of hostname by looking at the string.
E.g. "localhost" is assumed to be not the real hostname, but "fedora" is. Any
such attempts are bound to fail, because we cannot distinguish "fedora" (a
fallback value set by a distro), from "fedora" (received from reverse dns),
from "fedora" read from /etc/hostname.
/run/systemd/fallback-hostname is written with the fallback hostname when
either pid1 or hostnamed sets the kernel hostname to the fallback value. Why
remember the fallback value and not the transient hostname in /run/hostname
instead?
We have three hostname types: "static", "transient", fallback".
– Distinguishing "static" is easy: the hostname that is set matches what
is in /etc/hostname.
– Distingiushing "transient" and "fallback" is not easy. And the
"transient" hostname may be set outside of pid1+hostnamed. In particular,
it may be set by container manager, some non-systemd tool in the initramfs,
or even by a direct call. All those mechanisms count as "transient". Trying
to get those cases to write /run/hostname is futile. It is much easier to
isolate the "fallback" case which is mostly under our control.
And since the file is only used as a flag to mark the hostname as fallback,
it can be hidden inside of our /run/systemd directory.
For https://bugzilla.redhat.com/show_bug.cgi?id=1892235.
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We would sometimes ignore localhost-style names in /etc/hostname. That is
brittle. If the user configured some hostname, it's most likely because they
want to use that as the hostname. If they don't want to use such a hostname,
they should just not create the config. Everything becomes simples if we just
use the configured hostname as-is.
This behaviour seems to have been a workaround for Anaconda installer and other
tools writing out /etc/hostname with the default of "localhost.localdomain".
Anaconda PR to stop doing that: https://github.com/rhinstaller/anaconda/pull/3040.
That might have been useful as a work-around for other programs misbehaving if
/etc/hostname was not present, but nowadays it's not useful because systemd
mostly controls the hostname and it is perfectly happy without that file.
Apart from making things simpler, this allows users to set a hostname like
"localhost" and have it honoured, if such a whim strikes them.
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Changed static hostname to 'n/a' is not very nice.
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When the hostname is set through network config or such, let's
optimize things a bit by suppressing the logs and dbus notifications.
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gethostname(3) says it's unspecified whether the string is properly terminated
when the hostname is too long. We created a buffer with one extra byte, and it
seems the intent was to let that byte serve as terminator even if we get an
unterminated string from gethostname().
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This allows the 'unsafe' mark to be removed from the test.
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No functional change, just moving a bunch of things around. Before
we needed a rather complicated setup to test hostname_setup(), because
the code was in src/core/. When things are moved to src/shared/
we can just test it as any function.
The test is still "unsafe" because hostname_setup() may modify the
hostname.
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Various users want to know what the fallback hostname is. Since it was made
configurable in 8146c32b9264a6915d467a5cab1a24311fbede7e, we didn't expose this
nicely.
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The semantics were significantly changed in c779a44222161155c039a7fd2fd304c006590ac7
("hostnamed: Fix the way that static and transient host names interact", Feb. 2014),
but when the dbus api documentation was imported much later, it wasn't properly
adjusted to describe those new semantics.
34293dfafd2a81d80727938199769906dab321bd which added systemd.hostname= also
added new behaviour.
Let's ove various bits and pieces around so that they are in more appropriate
places. Drop recommendations to set the hostname for DHCP or mDNS purposes.
Nowadays we expect tools that want to expose some different hostname to the
outside to manage that internally without affecting visible state. Also drop
mentions of DHCP or mDNS directly setting the hostname, since nowadays network
management software is expected to (and does) go through hostnamed.
Also, add a high-level description of semantics. It glosses over the details of
handling of localhost-style names. Later commits will remove this special handling
anyway.
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This is later useful if we want to adjust the TTLs of packets we want to
propagate to clients.
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unfortunately I missed adding the timeout to 'now' which results in
an endless loop of renewal timeouts.
Fixes: 3a23834d6b0da391c1ba9cb79a7d7deea7125f4b
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This commit adds the possibility to pass command line options to the
debugger invoked with coredumpctl debug.
Resolves: #9905
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udev: do not link with libudev
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As udev_util_encode_string() is a simple wrapper of
encode_devnode_name().
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This also moves them to udev-util.h
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Upgrading to qemu 5.2 breaks TEST-36-NUMAPOLICY like:
qemu-system-x86_64: total memory for NUMA nodes (0x0) should
equal RAM size (0x20000000)
Use the new (as in >=2014) form of memdev in test 36:
-object memory-backend-ram,id=mem0,size=512M -numa node,memdev=mem0,nodeid=0
Since some target systems are as old as qemu 1.5.3 (CentOS7) but the new
kind to specify was added in qemu 2.1 this needs to add version parsing and
add the argument only when qemu is >=5.2.
Fixes #17986.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
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add support for "systemctl --user --machine=foobar@.host" for connecting to user bus of user "foobar"
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Previously, we'd already have explicit logging for the case where
$XDG_RUNTIME_DIR is not set. Let's also add some explicit logging for
the EPERM/ACCESS case. Let's also in both cases suggest the
--machine=<user>@.host syntax.
And while we are at it, let's remove side-effects from the macro.
By checking for both the EPERM/EACCES case and the $XDG_RUNTIME_DIR case
we will now catch both the cases where people use "su" to issue a
"systemctl --user" operation, and those where they (more correctly, but
still not good enough) call "su -".
Fixes: #17901
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So far, the bridge always acted as if "--system" was used, i.e. would
unconditionally connect to the system bus. Let's add "--user" too, to
connect to the users session bus.
This is mostly for completeness' sake.
I wanted to use this when making sd-bus's ability to connect to other
user's D-Bus busses work, but it didn't exist so far. In the interest of
keeping things compatible the implementation in sd-bus will not use the
new "--user" switch, and instead manually construct the right bus path
via "--path=", but we still should add the proper switches, as
preparation for a brighter future, one day.
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container
This is unfortunately harder to implement than it sounds. The user's bus
is bound a to the user's lifecycle after all (i.e. only exists as long
as the user has at least one PAM session), and the path dynamically (at
least theoretically, in practice it's going to be the same always)
generated via $XDG_RUNTIME_DIR in /run/.
To fix this properly, we'll thus go through PAM before connecting to a
user bus. Which is hard since we cannot just link against libpam in the
container, since the container might have been compiled entirely
differently. So our way out is to use systemd-run from outside, which
invokes a transient unit that does PAM from outside, doing so via D-Bus.
Inside the transient unit we then invoke systemd-stdio-bridge which
forwards D-Bus from the user bus to us. The systemd-stdio-bridge makes
up the PAM session and thus we can sure tht the bus exists at least as
long as the bus connection is kept.
Or so say this differently: if you use "systemctl -M lennart@foobar"
now, the bus connection works like this:
1. sd-bus on the host forks off:
systemd-run -M foobar -PGq --wait -pUser=lennart -pPAMName=login systemd-stdio-bridge
2. systemd-run gets a connection to the "foobar" container's
system bus, and invokes the "systemd-stdio-bridge" binary as
transient service inside a PAM session for the user "lennart"
3. The systemd-stdio-bridge then proxies our D-Bus traffic to
the user bus.
sd-bus (on host) → systemd-run (on host) → systemd-stdio-bridge (in container)
Complicated? Well, to some point yes, but otoh it's actually nice in
various other ways, primarily as it makes the -H and -M codepaths more
alike. In the -H case (i.e. connect to remote host via SSH) a very
similar three steps are used. The only difference is that instead of
"systemd-run" the "ssh" binary is used to invoke the stdio bridge in a
PAM session of some other system. Thus we get similar implementation and
isolation for similar operations.
Fixes: #14580
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