hypervvssd_selinux(8)

📦
version 20250627+git412.dbf877ab7 · 7 versions
, in opensuse-leap 16.0

✨ NAME ✨

okay bestie, welcome to the hypervvssd_selinux(8) manual page 💖 this one is all about the Security Enhanced Linux Policy for the hypervvssd processes. yes, that’s the vibe.

🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the hypervvssd processes via flexible mandatory access control. it’s giving “boundaries, but make them secure” ✨

The hypervvssd processes execute with the hypervvssd_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 hypervvssd_t

slay, now you can see them 👑

🦋 ENTRYPOINTS 🦋

The hypervvssd_t SELinux type can be entered via the hypervvssd_exec_t file type.

the default entrypoint paths for the hypervvssd_t domain are literally these:

/usr/lib/hyper-v/bin/.*vss_daemon, /usr/bin/hypervvssd

periodt 💅

🎀 PROCESS TYPES 🎀

SELinux defines process types (domains) for each process running on the system. very main character energy.

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

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

the following process types are defined for hypervvssd:

  • hypervvssd_t
Note: semanage permissive -a hypervvssd_t can be used to make the process type hypervvssd_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like… it’s chill but still watching 👀

🌈 BOOLEANS 🌈

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

  • 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

no cap, those booleans are iconic 🔥

💜 MANAGED FILES 💜

The SELinux process type hypervvssd_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. okay so permissions on permissions, we love a layered queen 👑

  • 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

🧚 FILE CONTEXTS 🧚

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

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 hypervvssd policy is very flexible, allowing users to setup their hypervvssd processes in as secure a method as possible.

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the hypervvssd. 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 hypervvssd_exec_t '/srv/hypervvssd/content(/.*)?'
restorecon -R -v /srv/myhypervvssd_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🫶

the following file types are defined for hypervvssd:

  • hypervvssd_exec_t
    • set files with the hypervvssd_exec_t type, if you want to transition an executable to the hypervvssd_t domain.
    • paths:
      • /usr/lib/hyper-v/bin/.*vss_daemon, /usr/bin/hypervvssd
  • hypervvssd_unit_file_t
    • set files with the hypervvssd_unit_file_t type, if you want to treat the files as hypervvssd 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, choose your fighter 💀

💅 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.

run them, love them, respect them 👑

🌟 AUTHOR 🌟

This manual page was auto-generated using sepolicy manpage. auto-generated and still ate 💖

👀 SEE ALSO 👀

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

and that’s the whole page bestie — brought to you by hypervvssd · 26-10-06 · hypervvssd_selinux(8) 🎀🦋💜

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