virtvboxd_selinux(8)

📦
version 20250627+git412.dbf877ab7 · 6 versions
, in opensuse-leap 16.0

💅 virtvboxd_selinux(8) — the SELinux policy for virtvboxd, explained 🎀

okay so you opened virtvboxd_selinux(8) and it's giving manual page energy, but don't panic bestie — it's literally just the SELinux policy for the virtvboxd processes and i'm gonna walk you through it 🫶

✨ NAME ✨

virtvboxd_selinux — Security Enhanced Linux Policy for the virtvboxd processes 💖

🌸 DESCRIPTION 🌸

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

The virtvboxd processes execute with the virtvboxd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep virtvboxd_t

like, go check, i'll wait 💅

🦋 ENTRYPOINTS 🦋

The virtvboxd_t SELinux type can be entered via the virtvboxd_exec_t file type.

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

/usr/bin/virtvboxd

that's the one (1) door in, bestie 🚪✨

👑 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 virtvboxd policy is very flexible allowing users to setup their virtvboxd processes in as secure a method as possible. slay, security 💖

The following process types are defined for virtvboxd:

  • virtvboxd_t
Note: semanage permissive -a virtvboxd_t can be used to make the process type virtvboxd_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 stuff but it's still gonna snitch in the logs, iykyk 💀

🍓 BOOLEANS 🍓

SELinux policy is customizable based on least access required. virtvboxd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run virtvboxd 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

both already on by default, so like, you probably don't gotta do anything 🎀

🌈 MANAGED FILES 🌈

The SELinux process type virtvboxd_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. (yes, SELinux said "i'm not doing all the work for you" 🙈)

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

yes that's literally just / in there, no i'm not okay about it 😭

virt_log_t

/var/log/log(/.*)?
/var/log/vdsm(/.*)?
/var/log/libvirt(/.*)?
/var/log/virtqemud.log
/var/log/virtproxyd.log
/var/log/virtsecretd.log
/var/log/virtnetworkd.log
/var/log/virtnodedevd.log
/var/log/virtstoraged.log
/var/log/virtnwfilterd.log
/var/log/virtinterfaced.log
/run/lock/xl

🧚 FILE CONTEXTS 🧚

SELinux requires files to have an extended attribute to define the file type. fancy ✨

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 virtvboxd policy is very flexible allowing users to setup their virtvboxd processes in as secure a method as possible. we love flexibility 💜

STANDARD FILE CONTEXT

SELinux defines the file context types for the virtvboxd. 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. okay so, two-step process, don't skip step two 🫶

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

The following file types are defined for virtvboxd:

  • virtvboxd_exec_t — Set files with the virtvboxd_exec_t type, if you want to transition an executable to the virtvboxd_t domain.
  • virtvboxd_t — Set files with the virtvboxd_t type, if you want to treat the files as virtvboxd data.
  • virtvboxd_var_run_t — Set files with the virtvboxd_var_run_t type, if you want to store the virtvboxd files under the /run or /var/run directory.

Paths:

/run/virtvboxd.pid, /run/libvirt/virtvboxd-sock,
/run/libvirt/virtvboxd-sock-ro, /run/libvirt/virtvboxd-admin-sock
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 = chcon, permanent = semanage fcontext + restorecon, periodt 💅

⭐ 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.

like a little toolbelt, obsessed 🎀

💀 AUTHOR 💀

This manual page was auto-generated using sepolicy manpage. (not me being auto-generated 😭)

🌟 SEE ALSO 🌟

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

and that's the whole page bestie, you ate that 💅✨ — this iconic little artifact is from virtvboxd, dated 26-10-06, filed under virtvboxd_selinux(8). go forth and label responsibly 🦋💖

📦 where this page comes from