Yu Watanabe [Sat, 26 Oct 2024 14:28:32 +0000 (23:28 +0900)]
update-utmp: wait slightly longer for the private bus socket being active
Before a339495b1d67f69f49ffffdd96002164a28f1c93, update-utmp typically
connects the public DBus socket when disconnected from the private DBus
socket, as dbus service should be active even during PID1 is being reexecuted.
However, after a339495b1d67f69f49ffffdd96002164a28f1c93, update-utmp
tries to connect only the private DBus socket, but reexecution of PID1
may be slow, hence all trials may fail when the reexecution is slow.
With this change, now it waits for 100ms to 2000ms, so in total it waits
about 37 seconds in average, previously about 4 seconds.
David Michael [Fri, 25 Oct 2024 14:45:44 +0000 (10:45 -0400)]
socket: support setting ownership of message queues
This applies the existing SocketUser=/SocketGroup= options to units
defining a POSIX message queue, bringing them in line with UNIX
sockets and FIFOs. They are set on the file descriptor rather than
a file system path because the /dev/mqueue path interface is an
optional mount unit.
Ryan Wilson [Fri, 18 Oct 2024 18:41:09 +0000 (11:41 -0700)]
cgroup: Add support for ProtectControlGroups= private and strict
This commit adds two settings private and strict to
the ProtectControlGroups= property. Private will unshare the cgroup
namespace and mount a read-write private cgroup2 filesystem at /sys/fs/cgroup.
Strict does the same except the mount is read-only. Since the unit is
running in a cgroup namespace, the new root of /sys/fs/cgroup is the unit's
own cgroup.
We also add a new dbus property ProtectControlGroupsEx which accepts strings
instead of boolean. This will allow users to use private/strict via dbus
and systemd-run in addition to service files.
Note private and strict fall back to no and yes respectively if the kernel
doesn't support cgroup2 or system is not using unified hierarchy.
Ryan Wilson [Wed, 16 Oct 2024 23:51:17 +0000 (16:51 -0700)]
core: Refactor ProtectControlGroups= to use enum vs bool
This commit refactors ProtectControlGroups= from using a boolean
in the dbus/execute backend to using an enum. There is no functional
change but this will allow adding new non-boolean values (e.g. strict,
private) a la PrivateHome.
sd-json,tree-wide: add sd_json_format_enabled() and use it everwhere
We often used a pattern like if (!FLAGS_SET(flags, SD_JSON_FORMAT_OFF)),
which is rather verbose and also contains a double negative, which we try
to avoid. Add a little helper to avoid an explicit bit check.
This change clarifies an aditional thing: in some cases we treated
SD_JSON_FORMAT_OFF as a flag (flags & SD_JSON_FORMAT_OFF), while in other cases
we treated it as an independent enum value (flags == SD_JSON_FORMAT_OFF).
In the first form, flags like SD_JSON_FORMAT_SSE do _not_ turn the json
output on, while in the second form they do. Let's use the first form
everywhere.
No functional change intended.
Initially I wasn't sure if this helper should be made public or just internal,
but it seems such a common pattern that if we expose the flags, we might just
as well expose it too, to make life easier for any consumers.
We would need to use pure if the funtion was getting pointers and
dereferencing them. But sd128_t is a structure and those functions
only access the parameters of the call.
const is stronger than pure, see
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-pure-function-attribute
and
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-const-function-attribute.
Zhou Qiankang [Mon, 28 Oct 2024 04:47:20 +0000 (12:47 +0800)]
meson: add loongarch64's definition to cpu_arch_defines
The default definition to add is `-D__loongarch64__`, which is not searched in [bpf_tracing.h](https://github.com/libbpf/libbpf/blob/09b9e83102eb8ab9e540d36b4559c55f3bcdb95d/src/bpf_tracing.h#L68)
This may avoid `error: Must specify a BPF target arch via __TARGET_ARCH_xxx` in loongarch64
Ryan Wilson [Sat, 26 Oct 2024 22:33:30 +0000 (15:33 -0700)]
core: Add RootDirectory= path to error message if directory does not exist
A colleague reported when RootDirectory= does not exist, systemd reports an error like:
```
Failed to set up mount namespacing: No such file or directory
```
Unfortunately, with large spec files, it can be hard to diagnose which path systemd is talking
about. Thus, to make the error message more helpful and similar to mount error messages, we add
the root directory/image path into the error message like:
```
Failed to set up mount namespacing: /tmp/thisdoesnotexist: No such file or directory
```
run: reconnect if our dbus connection is terminated
We must be prepared that systemd temporarily drops off the bus or
disconnects our direct connections (due to systemctl daemon-reexec or
so). Hence automatically reconnect when we watch the unit status, and
handle this case gracefully.
run: drop "-" prefix from command line when generating unit description
Let's not confuse users with the login shell indicator and drop it from
the description. This means a run0 session will now usually show up with
a description of "[run0] /bin/bash" rather than "[run0] -/bin/bash".
run: prefix unit description with our own process name
I think we should try to communicate clearly if something is a run0
session, or a systemd-run invocation. Hence, let's initialize the
description so that the command is prefixed by
program_invocation_short_name.
Effectively this means that our run0 sessions now appear as services
with a description of "[run0] -/bin/bash"
The current logic is a bit complex how systemd-run units are called. It
used to be just the unique ID of the dbus connection. Which was nice,
since its system-widely, uniquely assigned to us. But this didn't work
out well, due to direct connections to PID 1 and due to soft reboots.
We nowadays have a better ID to use though, with nicer properties: the
kernel manages a pidfd ID for every process after all, and it's globally
unique, for any process, and regardless of soft reboots. Hence use that
for naming preferably, and just keep one branch with a randomized name
as fallback.
run0: optionally show superhero emoji on each shell prompt
This makes use of the infra introduced in 229d4a980607e9478cf1935793652ddd9a14618b to indicate visually on each prompt that we are in superuser mode temporarily.
pick ad5de3222f userdbctl: add some basic client-side filtering
core: make sure that if PAMName= is set we always do the full user changing even if no user is specified explicitly
When PAMName= is set this should be enough to go through our entire user
changing story, so that PAM is definitely run, and environment variables
definitely pulled in and so on.
Previously, it would happen that under some circumstances we might no do
this when transitioning from root to root itself even though PAM was
enabled.
This adds some basic client-side user/group filtering to "userdbctl":
1. by uid/gid min/max
2. by user "disposition" (i.e. show only regular users with "userdbctl
user -R")
3. by fuzzy name (i.e. search by substring/levenshtein of user name,
real name, and other identifiers of the user/group record).
In the long run we also want to support this server side, but let's
start out with doing this client-side, since many backends won't support
server-side filtering anytime soon anyway, so we need it in either case.
The kernel regression has been hopefully fixed by
https://github.com/torvalds/linux/commit/c6508124193d42bbc3224571eb75bfa4c1821fbb
which is included in 6.12-rc4.
Let's drop the workaround.
Daan De Meyer [Tue, 22 Oct 2024 12:22:47 +0000 (14:22 +0200)]
docs: Mention that a local build might be required to use mkosi
Currently we need ukify with support for --profile and --join-profile
which isn't in an official release yet so mention that a local build
from source might be required.
Luca Boccassi [Tue, 22 Oct 2024 16:23:22 +0000 (17:23 +0100)]
mkosi: update debian commit reference
* 07a294d0c6 Do not mask systemd-gpt-auto-generator in upstream CI builds
* 5636398bf7 Backport patch to fix test failures with tzdata 2024b-1
* 354ded4946 Update changelog for 256.7-2 release
* e38c7c5345 Backport fixes for upstream autopkgtest suite
* 249676834c Disable utmp support, not y2038 safe
* 822d44da42 initramfs-tools: support missing /etc/udev/udev.conf
* ad71ebf700 systemd-boot: depend on systemd for kernel-install
* 5bf7008ef8 d/systemd.postinst: do not restart systemd-binfmt.service if masked
* 58d5aa1b41 d/rules: mask systemd-gpt-auto-generator on Ubuntu
* 481987d85c Update changelog for 256.7-1 release
* ce7f3d4b43 Revert "autopkgtest: skip TEST-64-UDEV-STORAGE due to qemu crash"
* 7007e73b22 Mark dependencies on clang and bpftool as :native
* 0e120cf704 Update upstream source from tag 'upstream/256.7'
|\
| * 914aae055c New upstream version 256.7
* fcea89cb00 d/t/upstream: honor /etc/apt configured by autopkgtest
Mike Yuan [Tue, 22 Oct 2024 17:30:50 +0000 (19:30 +0200)]
core/service: call service_enter_running() if live mount fails
service_enter_running() would re-arm timer for RuntimeMaxSec=,
hence it should be called instead of disabling timer completely
when live mount operation fails, in a similar fashion as
service_enter_reload_by_notify().
logind: add CanIdle + CanLock dbus properties to session object
Clients should be able to know if the idle logic is available on a
session without secondary knowledge about the session class. Let's hence
expose a property for that.
Nick Rosbrook [Tue, 22 Oct 2024 16:03:50 +0000 (12:03 -0400)]
varlinkctl: do not clobber format flags in verb_call
Currently, when SD_JSON_FORMAT_OFF is set in verb_call, the json format
flags are set to SD_JSON_FORMAT_PRETTY_AUTO|SD_JSON_FORMAT_COLOR_AUTO,
rather than or'ing those flags in. This means that other flags that may
have been set, e.g. SD_JSON_FORMAT_SEQ when --more is set, will be
clobbered.
Fix this by masking SD_JSON_FORMAT_OFF out, and then or'ing the new
flags in.
Ronan Pigott [Mon, 21 Oct 2024 06:16:49 +0000 (23:16 -0700)]
resolved: validate noerror response for CNAMEs
CNAME doesn't exist at the zone apex. When we get an unsigned noerror
response to a direct query for a CNAME record, we don't yet know if this
name is zone apex. We already request the correct DS record in this
case, but previously skipped it at validation time, causing the answer
to appear bogus. Make sure to also consider the DS record for the query
name for negative replies.
Move the renaming function to reboot-util.h (since it writes out
/run/nologin at shutdown), and let's get rid of fileio-label.[ch] now
that it serves no purpose anymore.
fileio: port write_string_file_full() to openat_report_new()
This brings two benefits: we will label the created file only if it is
actually created, and we can correctly delete any file we create again
on failure.