sys...inux(8)

πŸ“¦ version 20250627+git412.dbf877ab7, in opensuse-leap 16.0

πŸ’… sys...inux(8) β€” the SELinux glow-up for systemd_btrfs_soft_reboot_generator πŸŽ€

okay so bestie, you found the sys...inux(8) manual page, and it's literally all about the SELinux policy for the systemd_btrfs_soft_reboot_generator processes. no cap, it's giving "niche but iconic." let's get into it ✨


🌸 NAME 🌸

systemd_btrfs_soft_reboot_generator_selinux β€” Security Enhanced Linux Policy for the systemd_btrfs_soft_reboot_generator processes. that's the whole vibe. 🫢


✨ DESCRIPTION ✨

Security-Enhanced Linux secures the systemd_btrfs_soft_reboot_generator processes via flexible mandatory access control. like, it's the bodyguard, and MAC is the velvet rope πŸ’…

The systemd_btrfs_soft_reboot_generator processes execute with the systemd_btrfs_soft_reboot_generator_t SELinux type. wanna check if you've got these processes running? just run ps with the -Z qualifier. easy peasy.

for example:

ps -eZ | grep systemd_btrfs_soft_reboot_generator_t

πŸšͺ ENTRYPOINTS πŸšͺ

The systemd_btrfs_soft_reboot_generator_t SELinux type can be entered via the systemd_btrfs_soft_reboot_generator_exec_t file type. so that's the door, iykyk πŸ”‘

The default entrypoint paths for the systemd_btrfs_soft_reboot_generator_t domain are the following:

/usr/lib/systemd/system-generators/btrfs-soft-reboot-generator

πŸ‘‘ PROCESS TYPES πŸ‘‘

SELinux defines process types (domains) for each process running on the system. one type per vibe, basically.

You can see the context of a process using the -Z option to ps. yes, -Z again. it's the main character flag.

Policy governs the access confined processes have to files. SELinux systemd_btrfs_soft_reboot_generator policy is very flexible allowing users to setup their systemd_btrfs_soft_reboot_generator processes in as secure a method as possible. flexible and secure? we love a multitasker πŸ’–

The following process types are defined for systemd_btrfs_soft_reboot_generator:

  • systemd_btrfs_soft_reboot_generator_t
Note: semanage permissive -a systemd_btrfs_soft_reboot_generator_t can be used to make the process type systemd_btrfs_soft_reboot_generator_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so it's chill but it's still snitching πŸ’€

πŸŽ€ BOOLEANS πŸŽ€

SELinux policy is customizable based on least access required. systemd_btrfs_soft_reboot_generator policy is extremely flexible and has several booleans that allow you to manipulate the policy and run systemd_btrfs_soft_reboot_generator with the tightest access possible. tightest access = the fitted dress of security, fr fr.

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

πŸ—‚οΈ MANAGED FILES πŸ—‚οΈ

The SELinux process type systemd_btrfs_soft_reboot_generator_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions. don't forget the UID part, bestie, SELinux isn't doing everything for you πŸ™ˆ

  • 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
  • root_t
/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp

πŸ¦‹ FILE CONTEXTS πŸ¦‹

SELinux requires files to have an extended attribute to define the file type. it's like a name tag but for files 🏷️

You can see the context of a file using the -Z option to ls. (told you -Z was iconic.)

Policy governs the access confined processes have to these files. SELinux systemd_btrfs_soft_reboot_generator policy is very flexible allowing users to setup their systemd_btrfs_soft_reboot_generator processes in as secure a method as possible.

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the systemd_btrfs_soft_reboot_generator, 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. custom paths, custom labels, custom everything πŸ’«

semanage fcontext -a -t systemd_btrfs_soft_reboot_generator_exec_t '/srv/systemd_btrfs_soft_reboot_generator/content(/.*)?'
restorecon -R -v /srv/mysystemd_btrfs_soft_reboot_generator_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🧚

The following file types are defined for systemd_btrfs_soft_reboot_generator:

  • systemd_btrfs_soft_reboot_generator_exec_t β€” Set files with the systemd_btrfs_soft_reboot_generator_exec_t type, if you want to transition an executable to the systemd_btrfs_soft_reboot_generator_t domain.
  • systemd_btrfs_soft_reboot_generator_unit_file_t β€” Set files with the systemd_btrfs_soft_reboot_generator_unit_file_t type, if you want to treat the files as systemd btrfs soft reboot generator unit content.
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 β€” choose wisely, bestie 😭

πŸ› οΈ COMMANDS πŸ› οΈ

<pink>semanage fcontext</pink> can also be used to manipulate default file context mappings.

<pink>semanage permissive</pink> can also be used to manipulate whether or not a process type is permissive.

<pink>semanage module</pink> can also be used to enable/disable/install/remove policy modules.

<pink>semanage boolean</pink> can also be used to manipulate the booleans

<pink>system-config-selinux</pink> is a GUI tool available to customize SELinux policy settings. point-and-click SELinux, for when you want the ✨aesthetic✨ experience.


πŸ’œ AUTHOR πŸ’œ

This manual page was auto-generated using sepolicy manpage. the robots wrote it, we just made it cute 🫢


🌈 SEE ALSO 🌈

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


and that's the whole page, bestie!! πŸ’– this one's from systemd_btrfs_soft_reboot_generator, dated 26-10-06, living under the sys...inux(8) manual. go forth and label things correctly, ily πŸŽ€βœ¨πŸ¦‹

πŸ“¦ where this page comes from