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Backports of patch from systemd git to stable distributions
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Alvin Šipraga 986b2514cc network: wifi: check SSID when AP interfaces go up
When an AP goes up, the kernel may emit a netlink event indicating that
the interface has gained carrier. In that event, we should check if the
SSID has changed before attempting to reconfigure. Not doing so means
that the link->ssid member is not updated, leading to a potential
mismatch if some of the .network configurations match on SSID=.

There are however scenarios where the above heuristic is not enough.
Specifically, if the interface carrier state flip-flops within a short
enough interval, the internal throttling of netlink events inside the
kernel may suppress intermediate linkdown+linkup events (cf. Linux
net/core/link_watch.c). So there is no linkup event to react on.

To improve on the latter scenario, it is proposed to make newer kernels
emit an NL80211_CMD_START_AP multicast event when an AP goes up. This
event will not be dropped by link_watch. systemd-networkd can then react
to such events as well, and optionally reconfigure the link if the SSID
has changed. This will only work with newer kernels though.
2022-12-16 03:38:10 +09:00
.clusterfuzzlite ci: unpin CFLite 2022-04-26 09:13:57 +00:00
.github mkosi: work around a file conflict between systemd and systemd-boot 2022-12-15 16:04:28 +01:00
.semaphore semaphore: remove the Semaphore repositories recursively 2022-11-08 01:11:44 +09:00
catalog man: reword some awkward sentences 2022-10-14 15:56:58 +02:00
coccinelle treewide: drop "RUN_" from "RUN_WITH_UMASK" 2022-12-13 14:39:30 +01:00
docs journal: log filtering options support in PID1 2022-12-15 09:57:39 +00:00
factory meson: also allow setting GIT_VERSION via templates 2022-04-05 22:18:31 +02:00
hwdb.d hwdb: Fix mount matrix for CSL Panther Tab HD (#25752) 2022-12-15 19:59:14 +09:00
LICENSES network: change license of examples to MIT-0 2022-10-26 08:39:34 +02:00
man man: add two signature key example to systemd-measure 2022-12-15 18:39:00 +01:00
mkosi.conf.d mkosi: Drop i686 packages 2022-12-13 22:00:04 +09:00
modprobe.d meson: install the right README file in modprobe.d 2021-07-07 14:52:05 +02:00
network network: change license of examples to MIT-0 2022-10-26 08:39:34 +02:00
po po: Translated using Weblate (Portuguese) 2022-12-12 13:26:55 +09:00
presets units: enable systemd-network-generator by default 2021-12-16 09:49:39 +01:00
rules.d udev: rework 60-evdev.rules to be "additive" 2022-12-12 13:44:33 +01:00
shell-completion Implement --luks-pbkdf-force-iterations for homed 2022-12-06 15:56:11 +01:00
src network: wifi: check SSID when AP interfaces go up 2022-12-16 03:38:10 +09:00
sysctl.d tree-wide: link to docs.kernel.org for kernel documentation 2022-07-04 19:56:53 +02:00
sysusers.d Use descriptive name for nobody 2022-05-27 22:09:24 +01:00
test test: fix typo 2022-12-16 01:38:08 +09:00
tmpfiles.d tmpfiles.d: do not fail if provision.conf fails 2022-11-04 15:42:16 +01:00
tools tree-wide: BLS and DPS are now on uapi-group website 2022-11-21 12:26:35 +01:00
units unit: check more specific path to be written by systemd-binfmt 2022-12-15 03:36:27 +09:00
xorg xorg/50-systemd-user: add a full license header 2021-10-01 14:45:00 +02:00
.clang-format clang-format: Adjust style of pointers 2022-05-30 04:00:54 +09:00
.ctags editors: Prevent ctags from following symlinks 2019-02-15 11:01:20 -08:00
.dir-locals.el scripts: use 4 space indentation 2019-04-12 08:30:31 +02:00
.editorconfig docs: configure editorconfig for css and html 2022-05-17 21:13:17 +02:00
.gitattributes gitattributes: introduce and use "generated" attribute 2021-10-18 09:42:55 +02:00
.gitignore core/cgroup: CPUWeight/CPUShares support idle input 2022-08-11 14:25:58 +02:00
.mailmap mailmap: two more names 2021-03-30 13:17:58 +02:00
.packit.yml packit: drop/replace deprecated directives 2022-12-15 21:48:49 +09:00
.vimrc scripts: use 4 space indentation 2019-04-12 08:30:31 +02:00
.ycm_extra_conf.py ycm: add doc string for all the functions in configuration file 2017-11-29 13:21:49 -07:00
configure tools: shellcheck-ify tool scripts 2021-09-30 12:27:06 +02:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile tree-wide: add spdx header on all scripts and helpers 2021-01-28 09:55:35 +01:00
meson_options.txt meson,ukify: hook up ukify, add --version option 2022-12-07 15:32:13 +01:00
meson.build Merge pull request #25180 from keszybz/ukify 2022-12-08 15:11:18 +01:00
mkosi.build mkosi: Make sure selftests bpftool is accessible from $PATH 2022-12-05 10:51:24 +01:00
mkosi.kernel.config mkosi: Enable CONFIG_ZBOOT 2022-12-13 21:27:15 +01:00
mkosi.postinst mkosi: drop spaces after shell redirection operator 2022-11-14 11:59:30 +01:00
NEWS NEWS: fix typo 2022-12-14 20:41:42 +09:00
README ci: install pefile 2022-12-07 15:53:47 +01:00
README.md README.md: add a missing line break 2022-10-19 11:17:33 +02:00
TODO update TODO 2022-12-15 11:40:21 +01:00

Systemd

System and Service Manager

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Most documentation is available on systemd's web site.

Assorted, older, general information about systemd can be found in the systemd Wiki.

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Consult our NEWS file for information about what's new in the most recent systemd versions.

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