system...selinux(8)

💅 system...selinux(8) — the SELinux policy page for systemd_bootc_generator, bestie edition

okay so this is the systemd_bootc_generator policy manpage, and yes the header is literally system...selinux(8) — that's just how they do it around here. sit down, grab a boba, we're learning SELinux together 🫶

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✨ NAME ✨

systemd_bootc_generator_selinux — the Security Enhanced Linux Policy for the systemd_bootc_generator processes. that's it, that's the whole name section 💅

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🦋 DESCRIPTION 🦋

Security-Enhanced Linux secures the systemd_bootc_generator processes via flexible mandatory access control. flexible AND mandatory?? she's got range, honestly.

the systemd_bootc_generator processes execute with the systemd_bootc_generator_t SELinux type. wanna check if you've got these processes running? run the ps command with the -Z qualifier. like this, bestie:

ps -eZ | grep systemd_bootc_generator_t

no cap, that's the whole vibe check right there 🔍

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🚪 ENTRYPOINTS 🚪

the systemd_bootc_generator_t SELinux type can be entered via the systemd_bootc_generator_exec_t file type. that's the door, that's the way in, periodt.

the default entrypoint paths for the systemd_bootc_generator_t domain are the following:

/usr/lib/systemd/system-generators/bootc-systemd-generator

one singular path, and she's iconic 👑

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👯 PROCESS TYPES 👯

SELinux defines process types (domains) for each process running on the system. literally one domain per process, everyone gets their own little apartment.

you can see the context of a process using the -Z option to ps.

Policy governs the access confined processes have to files. the SELinux systemd_bootc_generator policy is very flexible, allowing users to set up their systemd_bootc_generator processes in as secure a method as possible. flexible and secure? we love a multitasker ✨

the following process types are defined for systemd_bootc_generator:

• systemd_bootc_generator_t

Note: semanage permissive -a systemd_bootc_generator_t can be used to make the process type systemd_bootc_generator_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, she's not gonna stop you, but she is gonna write it down in her notes 💀

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🎀 BOOLEANS 🎀

SELinux policy is customizable based on least access required. the systemd_bootc_generator policy is extremely flexible and has several booleans that allow you to manipulate the policy and run systemd_bootc_generator with the tightest access possible. least privilege is the aesthetic, 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

two booleans, both on by default, both absolutely doing their thing 🌸

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📁 MANAGED FILES 📁

the SELinux process type systemd_bootc_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 — SELinux isn't out here overriding the basics, she's just adding a layer 🧚

• 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

that's a whole lot of paths and yes, / is in there, she contains multitudes 😭

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🗂️ FILE CONTEXTS 🗂️

SELinux requires files to have an extended attribute to define the file type. no attribute, no entry, that's the rule.

you can see the context of a file using the -Z option to ls.

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the systemd_bootc_generator. if you wanted to store files with these types in different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. like so:

semanage fcontext -a -t systemd_bootc_generator_exec_t '/srv/systemd_bootc_generator/content(/.*)?'
restorecon -R -v /srv/mysystemd_bootc_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_bootc_generator:

• systemd_bootc_generator_exec_t — set files with the systemd_bootc_generator_exec_t type if you want to transition an executable to the systemd_bootc_generator_t domain.
• systemd_bootc_generator_unit_file_t — set files with the systemd_bootc_generator_unit_file_t type if you want to treat the files as systemd bootc 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, know the difference bestie 💅

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🛠️ 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. a GUI!! for the visual learners 🎨

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👑 AUTHOR 👑

this manual page was auto-generated using sepolicy manpage. a bot wrote this and honestly? she ate 🤖✨

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🔗 SEE ALSO 🔗

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

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and that's the page!! mwah 💋 this one's from systemd_bootc_generator, dated 26-10-06, living under the system...selinux(8) banner — go forth and label responsibly, bestie 🌈🫶