wdmd_selinux(8)

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

💖 wdmd_selinux(8) — the SELinux glow-up for wdmd 💖

Okay so bestie, this is literally the SELinux policy manual page for the wdmd processes, and it's giving "mandatory access control but make it fashion" ✨ No cap, it's about to be your new fave.

🌸 NAME 🌸

wdmd_selinux — Security Enhanced Linux Policy for the wdmd processes. Periodt. 💅

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the wdmd processes via flexible mandatory access control. It's giving "I'm the main character of access control" energy, fr fr.

The wdmd processes execute with the wdmd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier, bestie. Lowkey iconic.

For example:

ps -eZ | grep wdmd_t

🚪 ENTRYPOINTS 🚪

The wdmd_t SELinux type can be entered via the wdmd_exec_t file type. It's literally the doorway, iykyk.

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

/usr/bin/wdmd

That's it. That's the path. Slay. 💅

🎀 PROCESS TYPES 🎀

SELinux defines process types (domains) for each process running on the system. It's giving "everyone gets a label" energy.

You can see the context of a process using the -Z option to ps. Ngl, it's pretty useful.

Policy governs the access confined processes have to files. SELinux wdmd policy is very flexible allowing users to setup their wdmd processes in as secure a method as possible. Obsessed with the flexibility, honestly. 🫶

The following process types are defined for wdmd:

wdmd_t

Note: semanage permissive -a wdmd_t can be used to make the process type wdmd_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, it's not a free-for-all, bestie — the receipts are still there. 😭

🔘 BOOLEANS 🔘

SELinux policy is customizable based on least access required. wdmd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run wdmd with the tightest access possible. It's giving "customize your vibe check" ✨

  • daemons_dontaudit_scheduling — If you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on the daemons_dontaudit_scheduling boolean. Enabled by default. No cap.
setsebool -P daemons_dontaudit_scheduling 1
  • fips_mode — If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default. It's giving "security mode activated" 🔥
setsebool -P fips_mode 1
  • nis_enabled — If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default. NIS is lowkey vintage, but okay. 💀
setsebool -P nis_enabled 1

📂 MANAGED FILES 📂

The SELinux process type wdmd_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. It's giving "labels are my love language" 💖

  • cluster_conf_t
    • /etc/cluster(/.*)?
  • cluster_tmpfs_t
  • 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
  • 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/.aleph-version.json
    • /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
    • /
    • /initrd
    • /var/lib/ntp
  • wdmd_tmpfs_t
  • wdmd_var_run_t
    • /run/wdmd(/.*)?
    • /run/checkquorum-timer

🏷️ FILE CONTEXTS 🏷️

SELinux requires files to have an extended attribute to define the file type. It's literally the vibe check for your files, bestie.

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

Policy governs the access confined processes have to these files. SELinux wdmd policy is very flexible allowing users to setup their wdmd processes in as secure a method as possible. We stan a flexible queen. 👑

🌈 STANDARD FILE CONTEXT 🌈

SELinux defines the file context types for the wdmd. If you wanted to store files with these types in different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. It's giving "relabel your life" ✨

semanage fcontext -a -t wdmd_exec_t '/srv/wdmd/content(/.*)?'
restorecon -R -v /srv/mywdmd_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. Regex is literally the moment. 💅

The following file types are defined for wdmd:

  • wdmd_exec_t
    • Set files with the wdmd_exec_t type, if you want to transition an executable to the wdmd_t domain. It's the entrypoint to the party, no cap.
  • wdmd_initrc_exec_t
    • Set files with the wdmd_initrc_exec_t type, if you want to transition an executable to the wdmd_initrc_t domain. Different domain, different vibe.
  • wdmd_tmpfs_t
    • Set files with the wdmd_tmpfs_t type, if you want to store wdmd files on a tmpfs file system. Temporary but cute. 🦋
  • wdmd_var_run_t
    • Set files with the wdmd_var_run_t type, if you want to store the wdmd files under the /run or /var/run directory. Very on-the-run of you. 🏃‍♀️
    • Paths: /run/wdmd(/.*)?, /run/checkquorum-timer
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. So like, chcon is a quick fix, but semanage fcontext + restorecon is the committed relationship. 💍

⌨️ COMMANDS ⌨️

semanage fcontext can also be used to manipulate default file context mappings. It's giving "label management queen" 👑

semanage permissive can also be used to manipulate whether or not a process type is permissive. You love to see it.

semanage module can also be used to enable/disable/install/remove policy modules. Modular realness. ✨

semanage boolean can also be used to manipulate the booleans. Boolean baddie behavior. 🔘

system-config-selinux is a GUI tool available to customize SELinux policy settings. For when you want to point and click instead of type, bestie. 🖱️

✍️ AUTHOR ✍️

This manual page was auto-generated using sepolicy manpage. It's giving "the algorithm wrote this but make it slay" energy. 💅

👀 SEE ALSO 👀

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

That's the whole page, bestie! Go forth and SELinux responsibly. 🫶✨

wdmd — 26-10-06 — wdmd_selinux(8) 💖 You're welcome. 🎀
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