dmidecode_selinux(8)

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

💅 NAME 💅

okay bestie, welcome to dmidecode_selinux(8) — the Security Enhanced Linux Policy for the dmidecode processes. Yes, the manual name is a whole mouthful, but we're gonna get through it together 💖

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the dmidecode processes via flexible mandatory access control. iconic behavior, honestly.

The dmidecode processes execute with the dmidecode_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 dmidecode_t

🚪 ENTRYPOINTS 🚪

The dmidecode_t SELinux type can be entered via the dmidecode_exec_t file type.

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

  • /usr/bin/dmidecode
  • /usr/bin/ownership
  • /usr/bin/vpddecode
  • /usr/bin/biosdecode

👑 PROCESS TYPES 👑

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

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

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

The following process types are defined for dmidecode:

  • dmidecode_t
Note: semanage permissive -a dmidecode_t can be used to make the process type dmidecode_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. iykyk.

🎀 BOOLEANS 🎀

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

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

🗂️ MANAGED FILES 🗂️

The SELinux process type dmidecode_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.

  • cloud_init_tmp_t — managed file type; no default paths are listed for it here, bestie.
  • rhsmcertd_lock_t — default path: /run/lock/subsys/rhsmcertd

🌸 FILE CONTEXTS 🌸

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

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

🦋 STANDARD FILE CONTEXT 🦋

SELinux defines the file context types for dmidecode. 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 dmidecode_exec_t '/srv/dmidecode/content(/.*)?'
restorecon -R -v /srv/mydmidecode_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. little regex moment, periodt.

The following file types are defined for dmidecode:

  • dmidecode_exec_t — Set files with the dmidecode_exec_t type, if you want to transition an executable to the dmidecode_t domain.

Paths:

  • /usr/bin/dmidecode
  • /usr/bin/ownership
  • /usr/bin/vpddecode
  • /usr/bin/biosdecode
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.

💻 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.

🫶 AUTHOR 🫶

This manual page was auto-generated using sepolicy manpage.

🔗 SEE ALSO 🔗

okay bye bestie 💖 this page is source dmidecode, version/date 26-10-06, and it's the dmidecode_selinux(8) manual. slay and stay secure ✨

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