bumblebee_selinux(8)

📦 version 38.1.87, in centos-stream 9

💅 bumblebee_selinux(8) — the SELinux tea on bumblebee

okay bestie, buckle up 🎀 this is the bumblebee_selinux manual page — yes, that's the whole name, section 8, we're in the admin zone now. It's all about how SELinux handles the bumblebee processes, and ngl it's lowkey iconic.

✨ NAME ✨

bumblebee_selinux — Security Enhanced Linux Policy for the bumblebee processes 🐝

🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the bumblebee processes via flexible mandatory access control. fr fr, that's the whole vibe — mandatory access control, not vibes-based access control.

The bumblebee processes execute with the bumblebee_t SELinux type. Wanna check if you've got these processes running? just run the ps command with the -Z qualifier, easy.

For example:

ps -eZ | grep bumblebee_t

🦋 ENTRYPOINTS 🦋

The bumblebee_t SELinux type can be entered via the bumblebee_exec_t file type. that's the door, bestie 🚪

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

/usr/sbin/bumblebeed

👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. every single one, no skips.

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

Policy governs the access confined processes have to files. SELinux bumblebee policy is very flexible, allowing users to setup their bumblebee processes in as secure a method as possible. flexible AND secure, we love a multitasker 💅

The following process types are defined for bumblebee:

  • bumblebee_t
Note: semanage permissive -a bumblebee_t can be used to make the process type bumblebee_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it still talks about you, it just doesn't block you 😭

🔥 BOOLEANS 🔥

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

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

🎀 MANAGED FILES 🎀

The SELinux process type bumblebee_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. heads up though: the process's UID still needs to have DAC permissions, SELinux isn't gonna override that for you 🙈

bumblebee_var_run_t

/var/run/bumblebee.*

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/pcsd.socket
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk

debugfs_t

/sys/kernel/debug

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

xkb_var_lib_t

/var/lib/xkb(/.*)?
/usr/X11R6/lib/X11/xkb/.*
/usr/X11R6/lib/X11/xkb

💖 FILE CONTEXTS 💖

SELinux requires files to have an extended attribute to define the file type. yes, files have types. they have lore.

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 bumblebee policy is very flexible, allowing users to setup their bumblebee processes in as secure a method as possible. (yes, same sentence as before, it's that important 💅)

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the bumblebee, 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.

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

The following file types are defined for bumblebee:

bumblebee_exec_t

  • Set files with the bumblebee_exec_t type, if you want to transition an executable to the bumblebee_t domain. ✨

bumblebee_unit_file_t

  • Set files with the bumblebee_unit_file_t type, if you want to treat the files as bumblebee unit content.

Paths:

/etc/systemd/system/bumblebeed.*,
/usr/lib/systemd/system/bumblebeed.*

bumblebee_var_run_t

  • Set files with the bumblebee_var_run_t type, if you want to store the bumblebee files under the /run or /var/run directory.
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. no cap, chcon is giving temporary 🫶

🧚 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 whole GUI, for the girlies who don't do terminal 🎀

🌈 AUTHOR 🌈

This manual page was auto-generated using sepolicy manpage. (auto-generated and still ate, honestly 👑)

💜 SEE ALSO 💜

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

and that's the whole page bestie, slay 🦋 this was bumblebee version 26-10-23, dated 26-10-23 — same energy both times, we love a consistent queen. periodt. 💅✨

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