systemd_sleep_selinux(8)

πŸ“¦
version 20250627+git412.dbf877ab7 Β· 7 versions
, in opensuse-leap 16.0

πŸ’– systemd_sleep_selinux β€” the SELinux glow-up for your sleep processes πŸ’–

Hey bestie! So systemd_sleep_selinux is the manual page for the SELinux policy that covers systemd_sleep processes β€” like, the whole security vibe around how your system handles sleep. We're talking mandatory access control, no cap. Let's get into it ✨


πŸ›Œ NAME

systemd_sleep_selinux β€” Security Enhanced Linux Policy for the systemd_sleep processes, fr fr.


πŸ’… DESCRIPTION

Okay so, Security-Enhanced Linux literally secures the systemd_sleep processes via flexible mandatory access control. It's giving bodyguard energy the entire time.

The systemd_sleep processes execute with the systemd_sleep_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier, bestie.

For example:

ps -eZ | grep systemd_sleep_t

πŸšͺ ENTRYPOINTS

The systemd_sleep_t SELinux type can be entered via the systemd_sleep_exec_t file type. That's the invite-only door, iykyk.

The default entrypoint paths for the systemd_sleep_t domain are literally:

/usr/lib/systemd/systemd-sleep

πŸ‘‘ PROCESS TYPES

SELinux defines process types (domains) for each process running on the system. Main character energy for every single one, honestly.

You can see the context of a process using the -Z option to ps. It's iconic.

Policy governs the access confined processes have to files. The SELinux systemd_sleep policy is very flexible, allowing users to setup their systemd_sleep processes in as secure a method as possible. Very demure, very mindful πŸŽ€

The following process types are defined for systemd_sleep:

  • systemd_sleep_t
Note: semanage permissive -a systemd_sleep_t can be used to make the process type systemd_sleep_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, no blocking, but the receipts are still there πŸ’€

πŸ”˜ BOOLEANS

SELinux policy is customizable based on least access required. The systemd_sleep policy is extremely flexible and has several booleans that allow you to manipulate the policy and run systemd_sleep with the tightest access possible. Slay for granular control πŸ’…

If you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on the daemons_dontaudit_scheduling boolean. Enabled by default.

setsebool -P daemons_dontaudit_scheduling 1

If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

setsebool -P fips_mode 1

If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

setsebool -P nis_enabled 1

πŸ“‚ MANAGED FILES

The SELinux process type systemd_sleep_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the process's UID still need to have DAC permissions β€” SELinux is not out here doing your whole job, bestie.

  • cluster_conf_t
/etc/cluster(/.*)?
  • cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
  • cluster_var_run_t
/run/crm(/.*)?
/run/cman_.*
/run/rsctmp(/.*)?
/run/aisexec.*
/run/heartbeat(/.*)?
/run/pcsd-ruby.socket
/run/corosync-qnetd(/.*)?
/run/corosync-qdevice(/.*)?
/run/pcsd.socket
/run/corosync.pid
/run/cpglockd.pid
/run/rgmanager.pid
/run/cluster/rgmanager.sk
  • efivarfs_t
/sys/firmware/efi/efivars
  • krb5_host_rcache_t
/var/tmp/krb5_0.rcache2
/var/cache/krb5rcache(/.*)?
/var/tmp/nfs_0
/var/tmp/DNS_25
/var/tmp/host_0
/var/tmp/imap_0
/var/tmp/HTTP_23
/var/tmp/HTTP_48
/var/tmp/ldap_55
/var/tmp/ldap_487
/var/tmp/ldapmap1_0
  • root_t
/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp
  • swapfile_t
  • sysfs_t
/sys(/.*)?
  • systemd_sleep_var_lib_t
/var/lib/systemd/sleep(/.*)?

πŸ—‚οΈ FILE CONTEXTS

SELinux requires files to have an extended attribute to define the file type. It's like a little name tag for your files, periodt.

You can see the context of a file using the -Z option to ls. Obsessed with how easy that is.

Policy governs the access confined processes have to these files. The SELinux systemd_sleep policy is very flexible, allowing users to setup their systemd_sleep processes in as secure a method as possible. We love to see it πŸ’–

✨ STANDARD FILE CONTEXT

SELinux defines the file context types for systemd_sleep. If you wanted to store files with these types in a different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. Like a full glow-up for your file paths, no cap.

semanage fcontext -a -t systemd_sleep_exec_t '/srv/systemd_sleep/content(/.*)?'
restorecon -R -v /srv/mysystemd_sleep_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. Regex girlies stay winning 🌸

The following file types are defined for systemd_sleep:

  • systemd_sleep_exec_t β€” Set files with the systemd_sleep_exec_t type, if you want to transition an executable to the systemd_sleep_t domain. It's giving portal energy πŸŒ€
  • systemd_sleep_var_lib_t β€” Set files with the systemd_sleep_var_lib_t type, if you want to store the systemd sleep files under the /var/lib directory. Cozy little home for them 🏠
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. Temporary vs permanent, know the difference bestie πŸ’…

πŸ› οΈ COMMANDS

  • semanage fcontext can also be used to manipulate default file context mappings.
  • semanage permissive can also be used to manipulate whether or not a process type is permissive.
  • semanage module can also be used to enable/disable/install/remove policy modules.
  • semanage boolean can also be used to manipulate the booleans.
  • system-config-selinux is a GUI tool available to customize SELinux policy settings. For the visual learners, we see you πŸ‘€

✍️ AUTHOR

This manual page was auto-generated using sepolicy manpage. The robots did their thing, and honestly? Slay πŸ€–βœ¨


πŸ‘€ SEE ALSO

selinux(8), systemd_sleep(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

Go read those too, bestie β€” the lore is deep and the vibes are immaculate πŸ¦‹


That's the whole page, bestie! This manual page for systemd_sleep_selinux(8) is from version 26-10-06, and it's literally all about keeping your sleep processes secure and slaying while doing it. Hope this helped you understand SELinux a little better β€” you're doing amazing, sweetie πŸ’–βœ¨πŸŽ€

πŸ“¦ where this page comes from