qmail_lspawn_selinux(8)

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

💖 NAME 💖

okay bestie, welcome to qmail_lspawn_selinux(8) — the page for SELinux Policy qmail_lspawn 💅 the actual NAME line is:

qmail_lspawn_selinux — Security Enhanced Linux Policy for the qmail_lspawn processes.

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the qmail_lspawn processes via flexible mandatory access control. No cap, that's the whole vibe: SELinux is the main character keeping an eye on what these processes can do.

The qmail_lspawn processes execute with the qmail_lspawn_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 qmail_lspawn_t

🚪 ENTRYPOINTS 🚪

The qmail_lspawn_t SELinux type can be entered via the qmail_lspawn_exec_t file type.

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

/var/qmail/bin/qmail-lspawn

🧬 PROCESS TYPES 🧬

SELinux defines process types (domains) for each process running on the system. It's giving very structured, very organized 💖

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

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

The following process types are defined for qmail_lspawn:

  • qmail_lspawn_t
Note: semanage permissive -a qmail_lspawn_t can be used to make the process type qmail_lspawn_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, it won't block stuff, but it will still be in the group chat talking about it 😭

🎚️ BOOLEANS 🎚️

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

  • cifs_t
  • dovecot_spool_t
    • /var/spool/dovecot(/.*)?
  • ecryptfs_t
    • /home/[^/]+/.Private(/.*)?
    • /home/[^/]+/.ecryptfs(/.*)?
  • fusefs_t
    • /run/user/[0-9]+/gvfs
  • mail_home_rw_t
    • /root/Maildir(/.*)?
    • /root/.esmtp_queue(/.*)?
    • /var/lib/arpwatch/.esmtp_queue(/.*)?
    • /var/cache/ddclient/.esmtp_queue(/.*)?
    • /home/[^/]+/.maildir(/.*)?
    • /home/[^/]+/Maildir(/.*)?
    • /home/[^/]+/.esmtp_queue(/.*)?
  • nfs_t
  • user_home_t
    • /home/[^/]+/.+

🏷️ FILE CONTEXTS 🏷️

SELinux requires files to have an extended attribute to define the file type. Very demure, very extended-attribute-core 🎀

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

🌸 STANDARD FILE CONTEXT 🌸

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

The following file types are defined for qmail_lspawn:

  • qmail_lspawn_exec_t
    • Set files with the qmail_lspawn_exec_t type, if you want to transition an executable to the qmail_lspawn_t domain.
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 glow-up vs permanent label era 💅

🛠️ 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 👀

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

that's the whole page, bestie 🫶 — source/version qmail_lspawn, date 26-10-06, and we're out with qmail_lspawn_selinux(8) 💅✨

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