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Commit Graph

5836 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
7e215af765 man: move content from the wiki to systemd.preset(5)
The wiki was slightly stale, and almost all the information there
was already present in the man page. I moved the remaing part (discussion)
into the man page and adjusted all links to point to the man page instead.

daemon(7) has a some examples of packaging scriptlets… I don't think it fits
there very well. Most likely they should be moved to systemd.preset(5) or maybe
even removed, but I'm leaving that for later.
2021-02-02 14:20:23 +01:00
Deepak Rawat
8885fed4e3 logind: Introduce RebootWithFlags and others
Add new systemd-logind WithFlags version for Reboot and others. These
methods add a unit64 parameter, with which can send additional control flags.
2021-02-02 11:55:16 +00:00
Pavel Hrdina
16455ee2b1 man: fix small issue in AllowedMemoryNodes description
It should not mention "CPU" but "NUMA nodes".
2021-01-30 18:19:17 +01:00
Einsler Lee
9c587d6618 man: make it clear how systemd calculate the DefaultTasksMax.
Actually, systemd takes the minimum of 
* a) the maximum tasks value the kernel allows on this architecture
* b) the cgroups pids_max attribute for the system
* c) the kernel's configured maximum PID value
to calculate the DefaultTasksMax. Here, kernel.thread-max should also be methioned.
2021-01-30 12:48:15 +01:00
Lennart Poettering
82446c66cc
Merge pull request #18399 from keszybz/man-proofreading
Various man page cleanups
2021-01-29 20:04:07 +01:00
Zbigniew Jędrzejewski-Szmek
1d3a473b4a man: use ellipses for ranges in range descriptions
… and in few other places ;)
2021-01-29 17:02:23 +01:00
Topi Miettinen
ddc155b2fd New directives NoExecPaths= ExecPaths=
Implement directives `NoExecPaths=` and `ExecPaths=` to control `MS_NOEXEC`
mount flag for the file system tree. This can be used to implement file system
W^X policies, and for example with allow-listing mode (NoExecPaths=/) a
compromised service would not be able to execute a shell, if that was not
explicitly allowed.

Example:
[Service]
NoExecPaths=/
ExecPaths=/usr/bin/daemon /usr/lib64 /usr/lib

Closes: #17942.
2021-01-29 12:40:52 +00:00
Zbigniew Jędrzejewski-Szmek
75909cc7e4 man: various typos and other small issues
Fixes #18397.
2021-01-29 08:42:39 +01:00
Zbigniew Jędrzejewski-Szmek
d13f2617c9 man: rework description of --timestamp
Existing markup would be rendered improperly by groff. For #18397.
2021-01-28 20:43:42 +01:00
Zbigniew Jędrzejewski-Szmek
cf3ce0545c docs: add missing plural in title reference 2021-01-28 20:43:09 +01:00
Zbigniew Jędrzejewski-Szmek
e3c368f63c meson: rename target to update-man-rules
Same justification as for update-dbus-docs.
2021-01-27 09:10:25 +01:00
Zbigniew Jędrzejewski-Szmek
4c890ad3cc meson: rename target to update-dbus-docs
Very old versions of meson did not include the subdirectory name in the
target name, so we started adding various "top-level" custom targets in
subdirectories. This was nice because the main meson.build file wasn't
as cluttered. But then meson started including the subdir name in the
target name. So let's move the definition to the root so we can have all
targets named uniformly.
2021-01-27 08:46:42 +01:00
Zbigniew Jędrzejewski-Szmek
172e8cf505
Merge pull request #18365 from DaanDeMeyer/update-man-rules-mkosi
Fix update-man-rules usage with mkosi
2021-01-25 14:05:56 +01:00
Daan De Meyer
eb83eb63b8 sd-bus: Add sd_bus_reply()
While sd-bus already provides sd_bus_call() for calling a method
from a complete bus message object, We don't have an equivalent
function for replying from a method with a complete bus message
object.

Currently, we use sd_bus_send(call->bus, m, NULL) instead. Let's
add a shorthand for this pattern and name it sd_bus_reply().
2021-01-25 12:31:17 +09:00
Daan De Meyer
44bc7f4fcf meson: Fix update-man-rules when the build dir is not a subdir of the project dir
Until now, update-man-rules assumed that the build directory was
a subdirectory of the project directory. When using mkosi, this is
not the case. We use find instead of git ls-files because git ls-files
does not seem to support outputting absolute paths.

Also, this makes update-man-rules a bit more user-friendly as new manpages
don't have to be added to the git staging area before they are processed by
update-man-rules.py.
2021-01-24 17:33:49 +00:00
Anita Zhang
408a3bbd76 oom: make swap a soft requirement 2021-01-24 01:59:03 -08:00
Anita Zhang
c20aa7b171 oom: make memory pressure duration configurable through oomd.conf 2021-01-24 01:59:03 -08:00
Jiehong
9ae5fed64e feature: display status with a different shape depending on the status (#17728) 2021-01-22 20:45:43 +01:00
Luca Boccassi
95457dc13c
Merge pull request #18302 from bluca/mount_image_runtime
systemctl/core: add DBUS method to mount images without service restart
2021-01-22 17:49:11 +00:00
Yu Watanabe
3e405f28f4
Merge pull request #16228 from ddstreet/administrative_state
Add ActivationPolicy= [Link] parameter
2021-01-22 12:11:29 +09:00
Luca Boccassi
6faecbd353 systemctl: add new option to mount image inside a running service namespace
Use the new DBUS method and follow the same pattern as the
systemctl bind command.
2021-01-21 19:08:40 +00:00
Luca Boccassi
af47713952 pid1: add DBUS method to mount image inside a running service namespace
Follow the same pattern as the BindMount method.
2021-01-21 18:37:00 +00:00
Lennart Poettering
8d0d1a309e man: share a common explanation for --json= 2021-01-21 18:21:41 +01:00
Lennart Poettering
17547fb5cb dissect: almost port systemd-dissect to table_print_with_pager()
This doesn't actually port systemd-dissect to table_print_with_pager()
but at least rearranges things so that similar behaviour is exposed. The
reason it's not ported over 1:1 is that systemd-dissect actually adjusts
the JSON output of the table with additional info, and doesn't print the
table 1:1 as JSON.
2021-01-21 18:14:37 +01:00
Lennart Poettering
16a36b5616 sysext: port to table_print_with_pager()
This adds --no-legend as side-effect.
2021-01-21 18:14:21 +01:00
Lennart Poettering
896e678bea repart: port to table_print_with_pager()
This adds support for showing a pager, turning of the legend, like in
the other tools.
2021-01-21 18:14:21 +01:00
Dan Streetman
61135582e0 network: add ActivationPolicy= configuration parameter
This parameter allows configuring the activation policy for an interface,
meaning how it manages the interface's administrative state (IFF_UP flag).
The policy can be configured to bring the interface either up or down when
the interface is (re)configured, to always force the interface either up or
down, or to never change the interface administrative state.

If the interface is bound with BindCarrier=, its administrative state is
controlled by the interface(s) it's bound to, and this parameter is forced
to 'bound'.

This changes the default behavior of how systemd-networkd sets the IFF_UP
flag; previously, it was set up (if not already up) every time the
link_joined() function was called. Now, with the default ActivationPolicy=
setting of 'up', it will only set the IFF_UP flag once, the first time
link_joined() is called, during an interface's configuration; and on
the first link_joined() call each time the interface is reconfigured.

Fixes: #3031
Fixes: #17437
2021-01-21 11:49:43 -05:00
Yu Watanabe
33f7b61ca5
Merge pull request #18329 from poettering/notify-chroot
chroot/sd_notify() fixes
2021-01-21 13:16:59 +09:00
Lennart Poettering
09872a6e1a man: document how get logging to work in a RootDirectory=/RootImage= environment
Fixes: #18051
2021-01-20 22:39:33 +01:00
Lennart Poettering
301265ea10 man: document recent systemd-sysext interface changes 2021-01-20 17:50:23 +01:00
Susant Sahani
c038ce4606 network: add support to RoutingPolicyRule lookup table name 2021-01-19 16:37:46 +00:00
Lennart Poettering
656e5aa452
Merge pull request #18181 from poettering/sysext
systemd-sysext as a method of merging simple OS extensions into /usr and /opt
2021-01-19 16:02:58 +01:00
Zbigniew Jędrzejewski-Szmek
30927a2484 Allow control characters in environment variable values
So far, we would allow certain control characters (NL since
b4346b9a77, TAB since 6294aa76d8), but not others. Having
other control characters in environment variable *value* is expected and widely
used, for various prompts like $LESS, $LESS_TERMCAP_*, and other similar
variables. The typical environment exported by bash already contains a dozen or
so such variables, so programs need to handle them.

We handle then correctly too, for example in 'systemctl show-environment',
since 804ee07c13. But we would still disallow setting such variables
by the user, in unit file Environment= and in set-environment/import-environment
operations. This is unexpected and confusing and doesn't help with anything
because such variables are present in the environment through other means.

When printing such variables, 'show-environment' escapes all special
characters, so variables with control characters are plainly visible.
In other uses, e.g. 'cat -v' can be used in similar fashion. This would already
need to be done to suppress color codes starting with \[.

Note that we still forbid invalid utf-8 with this patch. (Control characters
are valid, since they are valid 7-bit ascii.) I'm not sure if we should do
that, but since people haven't been actually asking for invalid utf-8, and only
for control characters, and invalid utf-8 causes other issues, I think it's OK
to leave this unchanged.

Fixes #4446, https://gitlab.gnome.org/GNOME/gnome-session/-/issues/45.
2021-01-19 14:18:34 +01:00
Luca Boccassi
36b95d0440 man: mention SYSEXT_LEVEL in os-release(5) 2021-01-19 13:41:42 +01:00
Luca Boccassi
60bb6caaae sysext: use parse_extension_release and reject extension if not found 2021-01-19 13:41:42 +01:00
Lennart Poettering
7a87fb6119 man: add man page for systemd-sysext 2021-01-19 13:41:42 +01:00
Yu Watanabe
7e2757c42f
Merge pull request #18038 from yuwata/meson-split
meson: various cleanups
2021-01-19 12:22:34 +09:00
Yu Watanabe
4c6dd238b8
Merge pull request #18267 from lucaswerkmeister/truncate
Two StandardOutput=truncate:file improvements
2021-01-19 08:47:39 +09:00
Yu Watanabe
a0e150b2f4 meson: add missing license header 2021-01-19 07:06:32 +09:00
Lucas Werkmeister
e372584067 man: document effects of concurrent truncation
Co-authored-by: Lennart Poettering <lennart@poettering.net>
2021-01-18 21:59:19 +01:00
Luca Boccassi
5e8deb94c6 core: add DBUS method to bind mount new nodes without service restart
Allow to setup new bind mounts for a service at runtime (via either
DBUS or a new 'systemctl bind' verb) with a new helper that forks into
the unit's mount namespace.
Add a new integration test to cover this.

Useful for zero-downtime addition to services that are running inside
mount namespaces, especially when using RootImage/RootDirectory.

If a service runs with a read-only root, a tmpfs is added on /run
to ensure we can create the airlock directory for incoming mounts
under /run/host/incoming.
2021-01-18 17:24:05 +00:00
Luca Boccassi
94293d65cd MountAPIVFS: always mount a tmpfs on /run
We need a writable /run for most operations, but in case a read-only
RootImage (or similar) is used, by default there's no additional
tmpfs mount on /run. Change this behaviour and document it.
2021-01-18 17:24:05 +00:00
Yu Watanabe
f9ead1a2f4
Merge pull request #18230 from ssahani/macvlan-bcqueuelen
network: macvlan - add support to configure rx queue for broadcast / multicast
2021-01-17 20:05:22 +09:00
Lennart Poettering
3dc536e0c5
Merge pull request #17576 from gportay/veritysetup-add-support-for-dm-verity-flags
veritysetup: add support for veritytab
2021-01-17 11:18:25 +01:00
Susant Sahani
dca0a4e131 network: macvlan - add support to configure rx queue for broadcast/multicast 2021-01-17 08:39:28 +01:00
Yu Watanabe
38f3e0a58d tree-wide: fix typo 2021-01-17 16:20:27 +09:00
Adam Nielsen
e64652f70c man: clarify what network scopes are 2021-01-17 12:47:08 +09:00
Lucas Werkmeister
d15b1a6c22 man: document that truncate:file happens per command line 2021-01-15 20:22:29 +01:00
Gaël PORTAY
3ceb6913c7 man/systemd-veritysetup-generator: fix trailing space 2021-01-15 11:06:11 -05:00
Gaël PORTAY
08b04ec7e7 veritysetup-generator: add support for veritytab
This adds the support for veritytab.

The veritytab file contains at most five fields, the first four are
mandatory, the last one is optional:
 - The first field contains the name of the resulting verity volume; its
   block device is set up /dev/mapper/</filename>.
 - The second field contains a path to the underlying block data device,
   or a specification of a block device via UUID= followed by the UUID.
 - The third field contains a path to the underlying block hash device,
   or a specification of a block device via UUID= followed by the UUID.
 - The fourth field is the roothash in hexadecimal.
 - The fifth field, if present, is a comma-delimited list of options.
   The following options are recognized only: ignore-corruption,
   restart-on-corruption, panic-on-corruption, ignore-zero-blocks,
   check-at-most-once and root-hash-signature. The others options will
   be implemented later.

Also, this adds support for the new kernel verity command line boolean
option "veritytab" which enables the read for veritytab, and the new
environment variable SYSTEMD_VERITYTAB which sets the path to the file
veritytab to read.
2021-01-15 11:06:11 -05:00