bluechi-agent.selinux(8)

💖 bluechi-agent.selinux — the glow-up edition 💖

okay so this is bluechi-agent.selinux(8), straight out of the System Manager's Manual, and it's literally the whole SELinux policy situation for the bluechi-agent processes. buckle up bestie, it's giving "mandatory access control but make it cute" 🎀

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✨ NAME ✨

bluechi-agent.selinux — Security Enhanced Linux Policy for the bluechi-agent processes 💅

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the bluechi-agent processes via flexible mandatory access control. no cap, that's the whole vibe.

The bluechi-agent processes execute with the bluechi_agent_t SELinux type. wanna check if you've got these processes running? run the ps command with the -Z qualifier. easy.

For example:

ps -eZ | grep bluechi_agent_t

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🦋 ENTRYPOINTS 🦋

The bluechi_agent_t SELinux type can be entered via the bluechi_agent_exec_t file type. that's the doorway, bestie 🚪✨

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

/usr/bin/bluechi-agent
/usr/libexec/bluechi-agent

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system.

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

Policy governs the access confined processes have to files. SELinux bluechi-agent policy is very flexible, allowing users to setup their bluechi-agent processes in as secure a method as possible. iconic behaviour honestly.

The following process types are defined for bluechi_agent:

• bluechi_agent_t

Note: semanage permissive -a bluechi_agent_t can be used to make the process type bluechi_agent_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like… it stops blocking you but it's still gonna gossip about you in the logs 😭

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🔥 BOOLEANS 🔥

SELinux policy is customizable based on least access required. bluechi-agent policy is extremely flexible and has several booleans that allow you to manipulate the policy and run bluechi-agent with the tightest access possible. main character energy 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

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🎀 MANAGED FILES 🎀

The SELinux process type bluechi_agent_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 said "you can touch this" but DAC is still standing there like a bouncer, okay? 🫶)

• 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

/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/pcsd-ruby.socket
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk

• initrc_tmp_t

(no default paths listed for this one, it's mysterious like that 🙈)

• mnt_t

/mnt(/[^/]*)?
/mnt(/[^/]*)?
/rhev(/[^/]*)?
/rhev/[^/]*/.*
/media(/[^/]*)?
/media(/[^/]*)?
/media/.hal-.*
/var/run/media(/[^/]*)?
/afs
/net
/misc
/rhev

yes, a couple of those are listed twice. that's the source, not me being messy, i promise 💀

• root_t

/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd

• tmp_t

/sandbox(/.*)?
/tmp
/usr/tmp
/var/tmp
/var/tmp
/tmp-inst
/var/tmp-inst
/var/tmp/tmp-inst
/var/tmp/vi.recover

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🌈 FILE CONTEXTS 🌈

SELinux requires files to have an extended attribute to define the file type. it's not optional, it's a whole personality trait of the file.

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

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the bluechi_agent, so 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. two-step process, no skipping ✋

semanage fcontext -a -t bluechi_agent_exec_t '/srv/bluechi_agent/content(/.*)?'
restorecon -R -v /srv/mybluechi_agent_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. so yeah, regex is doing a lot of heavy lifting here 💅

The following file types are defined for bluechi_agent:

• bluechi_agent_exec_t
  • Set files with the bluechi_agent_exec_t type, if you want to transition an executable to the bluechi_agent_t domain.

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, choose your fighter 🔥

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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. for the girlies who love a clicky interface 🖱️✨

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💜 AUTHOR 💜

This manual page was auto-generated using sepolicy manpage. yes, a robot wrote it, and i just gave it a makeover 🎀

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🌟 SEE ALSO 🌟

• selinux(8)
• bluechi_agent(8)
• semanage(8)
• restorecon(8)
• chcon(1)
• sepolicy(8)
• setsebool(8)

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and that's the whole page bestie!! the footer at the very bottom just says bluechi-agent.selinux(8) — that's it, that's the sign-off, no secret date or version lore hiding down there 🦋💖 go forth and label things correctly, ily, periodt 💅