Michal Koutný [Fri, 26 Jul 2024 08:44:10 +0000 (10:44 +0200)]
test: Fail cgroup delegation test when user cannot be created
It means: a) user cannot be created, something's wrong in the
test environment -> fail the test; b) user already exists, we shall not
continue and delete (foreign) user.
man/systemd-repart: extend description and reword some sentences
The page was written when systemd-repart was primarily intended to be used on a
running system. But nowadays it's more often used to create images, so extend
that part of the description.
While at it, fix some whitespace issues and trim some overly complicated sentences.
Steve Traylen [Wed, 3 Jul 2024 12:19:08 +0000 (14:19 +0200)]
Document that MemorySwapMax supports % configuration
Certainly on systemd 252 at least a configuration of
```
MemorySwapMax=40%
```
is supported but this was missing from the man page.
Only MemoryMax was documented as supporting a %.
core: when switching root remove /run/systemd before executing the binary specified by init=
It's important if the binary specified by the init= boot option is not systemd
otherwise it confuses systemctl that incorrectly assumes that systemd is still
the init system due to the presence of /run/systemd/system.
Also some tools might also check the presence of /run/systemd/private to test
if systemd is running as pid1.
Make vcs-tag do something useful for non-developer mode as well
When building packages of arbitrary commits of systemd-stable,
distributors might want to include a git sha of the exact commit
they're on. Let's extend vcs-tag a little to make this possible.
If we're on a commit matching a tag, don't generate a git sha at all.
If we're not on a commit matching a tag, generate a vcs tag as usually.
However, if we're not in developer mode, don't append a '^' if the tree
is dirty to accomodate package builds applying various patches to the
tree which shouldn't be considered as "dirty" edits.
tools/update-distro-hash: rename, fetch the repository if appropriate
Let's rename the tool to tools/fetch-distro. It's useful to be able to fetch
the distro directly. But when that functionality is added, the old name is
confusing.
Now --update/-u must be specified to update the commits.
--reference-if-able is used to speed up the clone of debian.
It saves about 75% of the download.
If there is an error with the execv call in fork_agent the
program exits without any meaningful log message. Log the
command and errno so the user gets more information about
the failure.
Fixes: #33418 Signed-off-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
* 00babccdea Simplify BFQ scheduler enablement
* ef8ddb130b Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
* 5b4a5461d6 Fix changelog
* a8c5c736f6 Only apply shorter shutdown timer changes on Fedora
* f4e284cd7a Merge #150 `Deal with systemd-timesyncd backport in EPEL`
|\
| * 9378a0733a Deal with systemd-timesyncd backport in EPEL
* | 12d1f05029 Don't claim /sbin/installkernel if building for CentOS Stream 9
|/
* 79828f2753 spec: use "positive" conditions in conditionals
* c5d3af1638 Add build dependency on rsync on CentOS Stream 9
* 8d080fb5cb Backport udma buffer access patch
* 6084453807 Add support for building from a specific branch
* cb9d631ca0 Update PR patch metadata
* 3889da947e In standalone subpackages, suggest coreutils-single
* b7800e3e66 Drop versions from Conflicts for standalone packages
Gregor Herburger [Wed, 12 Jun 2024 12:05:09 +0000 (14:05 +0200)]
networkctl: add support to display learned fdb entries
Since Linux commit ddd1ad68826d ("net: bridge: Add netlink knobs for number
/ max learned FDB entries") [1] it is possible to limit to number of
dynamically learned fdb entries per bridge.
Add support to the systemd networkctl for the netlink bridge attributes
IFLA_BR_FDB_MAX_LEARNED and IFLA_BR_FDB_N_LEARNED.
Gregor Herburger [Thu, 20 Jun 2024 14:10:24 +0000 (16:10 +0200)]
network: bridge: add support for IFLA_BR_FDB_MAX_LEARNED
Since Linux commit ddd1ad68826d ("net: bridge: Add netlink knobs for number
/ max learned FDB entries") [1] it is possible to limit to number of
dynamically learned fdb entries per bridge.
Add support to the systemd netdev bridge for the new netlink attribute
IFLA_BR_FDB_MAX_LEARNED.
These are now practically identical, with the only differences between
the two having no effect on the rpm builds we do with mkosi, so let's
cut out the middle man and just use the Fedora Rawhide spec for CentOS
as well.
mkosi: Switch back to PKG_SUBDIR instead of symlinks
Previously I thought it would make sense to allow running the build
scripts from within the VM/container to rebuild the packages. Instead
we ended up making it possible to rerun mkosi outside of the container/VM
to rebuild the packages, so let's switch back to $PKG_SUBDIR to tell the
build scripts where to look for the packaging sources.
Mike Yuan [Wed, 1 May 2024 13:26:33 +0000 (21:26 +0800)]
core/service: imply Type=exec if credentials are used
When credentials are used with Type=simple + ExecStartPost=,
i.e. when multiple sd-executor instances are running in parallel
for a single service, the state of final credential dir
might be unexpected wrt path_is_mount_point() and other
steps. So, let's imply Type=exec if not explicitly specified,
and emit a warning otherwise.
Kamil Szczęk [Thu, 27 Jun 2024 17:05:43 +0000 (19:05 +0200)]
cryptsetup: handle parallel activation of volumes with another tool gracefully
This commit makes systemd-cryptsetup exit with a successful status when
the volume gets unlocked outside of the current systemd-cryptsetup
process while it was executing. This can be easily reproduced by calling
systemd-cryptsetup, and while it waits for user to input a password/PIN,
unlock the volume in a second terminal. Then after entering the password
systemd-cryptsetup will exit with a non-zero status code.
udev-builtin-net_id: use firmware_node/sun for ID_NET_NAME_SLOT
pci_get_hotplug_slot() has the following limitations:
- if slots are not hotpluggable, they are not in /sys/bus/pci/slots.
- the address at /sys/bus/pci/slots/X/addr doesn't contains the function part,
so on some system, 2 different slots with different _SUN end up with the same
hotplug_slot, leading to naming conflicts.
- it tries all parent devices until it finds a slot number, which is incorrect,
and what led to NAMING_BRIDGE_MULTIFUNCTION_SLOT being disabled.
The use of PCI hotplug to find the slot (ACPI _SUN) was introduced in
https://github.com/systemd/systemd/commit/0035597a30d120f70df2dd7da3d6128fb8ba6051
"udev: net_id - export PCI hotplug slot names" on 2012/11/26.
At the same time on the kernel side we got
https://github.com/torvalds/linux/commit/bb74ac23b10820d8722c3e1f4add9ef59e703f63
"ACPI: create _SUN sysfs file" on 2012/11/16.
Using PCI hotplug was the only way at the time, but now 12 years later we can use
firmware_node/sun sysfs file.
Looking at a small selection of server HW, for HPE (Gen10 DL325), the _SUN is attached
to the NIC device, whereas for Dell (R640/R6515/R6615) and Cisco (UCSC-C220-M5SX),
the _SUN is on the first parent pcieport.
We still fallback to pci_get_hotplug_slot() to handle the s390 case and
maybe some other coner cases (_SUN on grand parent device that is not a
bridge ?).
Mike Yuan [Sat, 22 Jun 2024 10:03:50 +0000 (12:03 +0200)]
core/service: destroy runtime data when Type=oneshot services exit
Currently, we have a bunch of Type=oneshot + RemainAfterExit=yes
services that make use of credentials. When those exits, the cred mounts
remain established, which is pointless and quite annoying. Let's
instead destroy the runtime data on SERVICE_EXITED, if no process
will be spawned for the unit again.
timedatectl: setting set_local_rtc to 1 will throw Warning as well, use log_warning() (#33489)
Previously only running `timedatectl` it was showing warning regarding the dangers of setting RTC to local TZ.\rNow similar warning is also flashed when `set-local-rtc 1`.
meson: fix missing failure if bpf-framework was enabled
If building with clang and clang does not support bpf, then enabling
-Dbpf-framework=enabled would silently drop the feature (even printing
bpf-framework: enabled in the meson build recap, and no message anywhere
that'd hint at the failure!)
This is unexpected, so add check to fail hard in this case.
All other code paths (gcc, missing bpftool) properly check for the
option, but it is not as easy for a custom command so check explicitly
Mike Yuan [Wed, 10 Jul 2024 20:27:21 +0000 (22:27 +0200)]
run: clean up ExecCommandFlags serialization
The current behavior is actually OK, since use_ex_prop = !arg_expand_environment,
but that's very implicit and using STRV_MAKE() this way feels icky.
Let's make this more readable, by using exec_command_flags_to_strv().
We've been getting some integration test failures due to timeouts
on finding the root partition device. Let's bump the default device
timeout a little to see if it mitigates these failures.
main: set $COLUMNS/$ROWS for PID 1 based on /dev/console data
In PID 1 we write status information to /dev/console regularly, but we
cannot keep it open continously, due to the kernel's SAK logic (which
would kill PID 1 if user hits SAK). But closing/reopening it all the
time really sucks for tty types that have no window size management
(such as serial terminals/hvc0 and suchlike), because it also means the
TTY is fully closed most of the time, and that resets the window sizes
to 0/0.
Now, we reinitialize the window size on every reopen, but that is a bit
expensive for simple status output. Hence, cache the window size in the
usualy $COLUMNS/$ROWS environment variables. We don't inherit these to
our payloads anyway, hence these are free to us to use.
terminal-util: add recognizable error if cols/rows of tty are initially not initialized
Various tty types come up with cols/rows not initialized (i.e. set to
zero). Let's detect these cases, and return a better error than EIO,
simply to make things easier to debug.
terminal-util: teach resolve_dev_console() to deal correctly with /dev/console being a symlink
/dev/console is sometimes a symlink in container managers. Let's handle
that correctly, and resolve the symlink, and not consider the data from
/sys/ in that case.
Let's always rely on our own TTY reset logic and tty disallocation/clear
screen logic, thus always pass --noclear and --noreset.
Also, bring the list of baud rates to try into sync for console-getty
and serial-getty (the former might or might not be connected to rs232,
we can't know, hence assume the worst, and copy what
serial-getty@.service does)
It's a bit confusing, but we actually initialize the terminal twice for
each service, potentially. One earlier time, where we might end up
firing vhangup() and vt_disallocate(), which is a pretty brutal way to
reset things, by disconnecting and possibly invalidating the tty
completely. When we do this we do not keep any fd open afterwards, since
it quite likely points to a dead connection of a tty.
The 2nd time we initialize things when we actually want to use it.
The first initialization is hence "destructive" (killing any left-overs
from previous uses) the 2nd one "constructive" (preparing things for our
new use), if you so will.
Let's document this distinction in comments, and let's also move both
initializations to exec_invoke(), so that they are easier to see in their
symmetric behaviour. Moreover, let's run the tty initialization after we
opened both input and output, since we need both for doing the fancy
dimension auto init stuff now.
Oh, and of course, one thing to mention: we nowadays initialize
terminals both with ioctl() and with ansi sequences. But the latter
means we need an fd that is open for *write* (since we are *writing*
those ansi sequences to the tty). Hence, resetting via the input fd is
conceptually wrong, it worked only so far if we had O_RDWR open mode
selected)
Let's make sure to first issue the non-destructive operations, then
issue the hangup (for which we need the fd), then try to disallocate the
device (for which we don't need it anymore).
We nowadays reset TTYs by writing ANSI sequences to them. This can only
work if we operate on an *output* fd, not an input fd. Hence switch
various cases where we erroneously used an input fd to use an output fd
instead.
1. use vtnr_from_tty() to parse out VT number from tty path
2. open tty for write only when we want to output just ansi sequences
3. open tty in asynchronous mode, and apply a timeout, just to be safe
4. propagate error from writing (most callers ignore it anyway, might as
well pass it along correctly)
terminal-util: split out color macros/helpers into its own header
This is a lot of stuff, and sometimes quite wild, let's turn this into
its own header.
All stuff color-related that just generates sequences is now in
ansi-color.h (no .c file!), and everything more complex that
probes/ineracts with terminals remains in termina-util.[ch]
terminal-util: modernize terminal_reset_ansi_seq() a bit
Let's update the commentary a bit. Also, use a time-out of 100ms rather
than 50ms for this, simply to unify on the same value used in
vt_disallocate() in a similar case.
Let's put "terminal_" as prefix, like with the other reset calls, and
let's make clear that this only encapsulates the ioctl-based reset
logic, not the ANSI sequence based reset logic.
terminal-util: don't issue "ESC c" sequence on reset, but only when erasing the screen
ESC c is a (vaguely defined) "reset to initial state" ANSI sequence.
Many terminals clear the screen in this case, but that's a bit drastic I
think for most resets.
terminal-util: add helper that queries terminal sizes via ANSI sequence
When we are talking to a serial terminal quite commonly the dimensions
are not set properly, because the serial protocol has not handshake or
similar to transfer this information.
However, we can derive the dimensions via ANSI sequences too, which
should get us the right information, since ANSI sequences are
interpreted by the final terminal, rather than an intermediary local tty
driver (which is where TIOCGWINSZ is interpreted).
This adds a helper call that gets the dimensions this way.
Let's prefix these functions with the subsystem name, and clean them up
a bit. Specifically, drop the error logging, it's entirely duplicative,
since every single caller does it anyway.
terminal-util: when querying bg color, ensure input fd and output fd refer to same tty
Let's add an extra safety check: before issuing the ansi sequence to
query the bg color, let's make sure input and output fd actually
reference the same tty. because otherwise it's unlikely we'll be able to
read back the response from the tty driver.
terminal-util: don't process the same data twice when reading back bg color info
If we only read partial information from the tty we ended up parsing it
again and again, confusing the state machine. hence, return how much
data we actually processed and drop it from the buffer.