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Commit Graph

65556 Commits

Author SHA1 Message Date
Antonio Alvarez Feijoo
191b891bf1 man: fix references to gethostname/sethostname 2023-06-23 23:38:05 +08:00
Lennart Poettering
54b8a816a3 update TODO 2023-06-23 15:23:21 +02:00
Frantisek Sumsal
dc7e580e64 tree-wide: use https for the 0pointer.de doc links 2023-06-23 13:46:56 +01:00
Lennart Poettering
0438aa5775 resolved: if ipv6 is off patch hostname→address query with unspec family to ipv4
If the client never specified the address family, and IPv6 is off in the
kernel, then look only for A, never for AAAA RRs.

Fixes: #23951
2023-06-23 14:45:26 +02:00
Luca Boccassi
fc84ddda2f
Merge pull request #28123 from poettering/threads-no-more
get rid of any threads in PID 1
2023-06-23 13:24:41 +01:00
Romain Geissler
3965f173ea elf-util: check for overflow when computing end of core's PT_LOAD segments 2023-06-23 12:35:34 +01:00
Luca Boccassi
148083a093
Merge pull request #28127 from poettering/coredump-loop-read
coredump: fixes with overly large coredumps
2023-06-23 12:28:40 +01:00
Lennart Poettering
1ee20371c7 basic: drop unused include 2023-06-23 10:05:16 +02:00
Lennart Poettering
8c3fe1b5b5 process-util: add simple wrapper around PR_SET_CHILD_SUBREAPER
Let's a simple helper that knows how to deal with PID == 1.
2023-06-23 10:05:16 +02:00
Lennart Poettering
2499d32022 docs: document threading situation in coding style 2023-06-23 10:05:16 +02:00
Lennart Poettering
530f6ada2e async: use FORK_DETACH for asynchronous syncs
To get proper "fire-and-forget" feeling we really want to make sure
noone has to reap the forked off process.
2023-06-23 10:05:16 +02:00
Lennart Poettering
e4687bb8a6 async: add explanatory comment 2023-06-23 10:05:16 +02:00
Lennart Poettering
78b680f99b async: drop the now unused asynchronous_job() 2023-06-23 10:05:16 +02:00
Lennart Poettering
437f3e35b4 async: add generic implementation of asynchronous_rm_rf()
This one doesn't use threads anymore. This is the last use of threads in
PID 1. Yay!

Fixes: #27287
2023-06-23 10:05:16 +02:00
Lennart Poettering
7e14a308cf shared: move async.[ch] from src/basic/ → src/shared/
That way we can later add an async wrapper for rm_rf() which is in
src/shared/, too.
2023-06-23 10:02:15 +02:00
Lennart Poettering
2e7b105eb9 process-util: add FORK_DETACH flag for forking of detached child
A test for this is later added indirectly, via aynchronous_rm_rf() that
uses this and comes with a suitable test.
2023-06-23 10:02:15 +02:00
Lennart Poettering
f7bccef178 automont: rework expiry to use subprocess rather than thread
One more step towards a thread-free PID1: let's do automount expiry in a
subprocess rather than a thread.
2023-06-23 10:02:15 +02:00
Lennart Poettering
01ab446c35 basic: add comments about raw_clone() calls not supporting threads/malloc in child 2023-06-23 10:02:15 +02:00
Lennart Poettering
c26d7837bb async: stop using threads for asynchronous_close()
Let's work towards PID1 being purely single threaded again. Let's rework
asynchronous_close() on top of clone() with CLONE_FILES (so that we
can manipulate PID1's fd table correctly).

One less use of pthread_create() in PID 1.
2023-06-23 10:00:30 +02:00
Lennart Poettering
29c3520f28 process-util: add clone_with_nested_stack() helper
This wraps glibc's clone() but deals with the 'stack' parameter in a
sensible way. Only supports invocations without CLONE_VM, i.e. when
child is a CoW copy of parent.
2023-06-23 10:00:30 +02:00
Lennart Poettering
09f9530baf process-util: add helper that detects if we are a reaper process 2023-06-23 10:00:30 +02:00
Lennart Poettering
da3cd87ab4
Merge pull request #28129 from poettering/userdb-ratelimit
userdbd: make sure we don't exit under pressure
2023-06-23 09:53:21 +02:00
Lennart Poettering
e6421b6ccd man: correct and extend JournalSizeMax=
The man page claimed the default was 10M, but that's not true, it's
767M.

Also mention there's no point in increasing it further.

See: #26748
2023-06-23 09:49:41 +02:00
Lennart Poettering
4a78074fc1 coredump: clamp JournalSizeMax= to maximum journald would accept
See: #26748
2023-06-23 09:45:50 +02:00
Lennart Poettering
a73c74db66 coredump: use loop_read() for reading coredump into memory
Fixes: #26748
2023-06-23 09:38:12 +02:00
Lennart Poettering
6270b2e67e tpm2-util: look for tpm2-pcr-signature.json directly in /.extra/
So far we relied on tmpfiles.d to copy tpm2-pcr-signature.json from
/.extra/ into /run/systemd/. This is racy however if cryptsetup runs too
early, and we cannot unconditionally run it after tmpfiles completed.

hence, let's teach cryptsetup to directly look for the file in /.extra/,
in order to simplify this, and remove the race. But do so only in the
initrd (as only there /.extra/ is a concept).

We generally prefer looking in /run/systemd/, since things are under
user control then. In the regular system we exclusively want that
userspace looks there.

Fixes: #26490
2023-06-23 09:32:33 +02:00
Lennart Poettering
19b761a097 tree-wide: getpid() → getpid_cached()
This doesn't really matter, but let's be systematic and prefer
getpid_cached() in our codebase.
2023-06-22 17:07:59 -06:00
Lennart Poettering
2543deada3 userdbd: when we hit a flood of requests to start more workers, don't exit
Let's tweak what we do if we detect a flood of requests to start more
workers: if none of the workers ever sticks (i.e. the worker count is
zero) then let's just give up, as before.

Otherwise, let's just not start more workers for a while, and do so
again after a while. Thus spawning ofr workers will "cool off" for a
while.

Fixes: #27028
2023-06-22 18:59:24 +02:00
Lennart Poettering
3ef0103f22 userdbd: prefix parameters with their names more 2023-06-22 18:58:31 +02:00
Lennart Poettering
c659d0f55e userdbd: drastically raise ratelimit we apply on requests for more worker processes
These requests might come in during lookup floods very quickly, since
multiple worker processes might detect that things should be scaled up
at the same time. Hence, let's substantially raise the limit so that it
doesn't get hit in real-life scenarios and acts more like a safety net.
2023-06-22 18:57:30 +02:00
Yu Watanabe
742aebc5a7 meson: merge two similar loops for unit files
This also merges two arrays units and in_units, and uses dictionary
for declaring units.

This also fixes the condition handling, that previously only two
conditions were handled and rests were ignored.
2023-06-22 10:19:51 -06:00
Lennart Poettering
7e81ce6bb8 docs: describe $TESTFUNCS briefly
Follow-up for f1a83e41ae
2023-06-22 15:14:47 +01:00
Lennart Poettering
f1a83e41ae tests: teach tests boilerplate to run selected tests only
sometimes its useful to only run a specific test (or multiple) instead
of all implemented in a test. Allow the test name(s) to be specified on the
in a $TESTFUNCS env var, separated by colons.
2023-06-22 16:07:57 +02:00
Lennart Poettering
58373cebb8
Merge pull request #28104 from DaanDeMeyer/emergency-kexec-halt
core: Add halt and kexec emergency actions
2023-06-22 16:07:35 +02:00
Daan De Meyer
4638e18593 hwdb: Don't generate hwdb if no hwdb files are found 2023-06-22 16:07:22 +02:00
Lennart Poettering
947c4d3952 core: restrict ImportCredential= globbing
Let's restrict how we apply credential globbing in ImportCredential=, so
that we have some flexibility in automatically extending the glob
expression with per-instance data eventually without getting into
conflict with the globbing parts.

In our current uses we only allow globbing at the end of the expression,
and this is a new, unreleased feature hence let's be restrictive on this
initially. We can still relax this later if we feel the need to after
all.

Fixes: #28022
2023-06-22 16:07:09 +02:00
Lennart Poettering
54c0ba3409 pid1: use FORK_DEATHSIG where appropriate 2023-06-22 16:05:37 +02:00
Jan Luebbe
173d47f788 man: correct reference to sd_id128_get_boot_app_specific
The function sd_id128_get_boot_app_specific is the app specific variant of
sd_id128_get_boot.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
2023-06-22 12:34:00 +01:00
Daan De Meyer
c9c9e87b80
Merge pull request #28115 from yuwata/meson-tiny-fixes
meson: several tiny fixes
2023-06-22 11:49:36 +02:00
Daan De Meyer
9a0eade760 units: Use built-in halt and kexec features instead of systemctl 2023-06-22 10:33:18 +01:00
Daan De Meyer
3cf848f6cd core: Add halt and kexec emergency actions
Let's complete the picture by adding the missing halt and kexec
emergency actions.
2023-06-22 10:33:13 +01:00
Lennart Poettering
665ca08b6e sleep-util: mention that offset is in memory pages 2023-06-22 10:30:23 +02:00
Franck Bui
e538927918 rpm: fix lua trigger priority for sysusers
Commit cd621954ed probably forgot to fix the lua
implementation.
2023-06-22 16:18:01 +09:00
Yu Watanabe
c20d291416 meson: fix test dependency
Follow-up for daf4e78e48.
2023-06-22 14:37:45 +09:00
Yu Watanabe
1782534bb1 meson: shorten code a bit 2023-06-22 14:37:24 +09:00
Yu Watanabe
e04e42312d meson: drop wrong and redundant assignment
Follow-up for b62ee354dd.
2023-06-22 14:20:32 +09:00
Yu Watanabe
d37dee7450 meson: also build symbol tests for static-libsystemd=no-pic 2023-06-22 14:20:32 +09:00
Yu Watanabe
67b1c943cb meson: add dependency for udev runner to test 2023-06-22 14:20:32 +09:00
Yu Watanabe
50cf2032a0 sd-journal: verify journal file header in more detail
Fixes #27635.
2023-06-21 18:25:07 -06:00
Zbigniew Jędrzejewski-Szmek
27ccba2621 pam: add macro wrapper to make code shorter
The same pattern is repeated so many times that it seems worth making a
shorthand for it.

Follow-up for f71b55b510 and
2675747f3c.
2023-06-22 00:47:32 +01:00