watchdo..._selinux(8)

💅 NAME 💅

okay so this is the watchdo..._selinux(8) page — yes the title's literally truncated like that, iykyk — and it's all about watchdog_unconfined_selinux: the Security Enhanced Linux Policy for the watchdog_unconfined processes 🫶

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the watchdog_unconfined processes via flexible mandatory access control. That's the whole vibe: flexible, but mandatory. no cap.

The watchdog_unconfined processes execute with the watchdog_unconfined_t SELinux type. Wanna check if you've got these processes running? Just run the ps command with the -Z qualifier, bestie.

For example:

ps -eZ | grep watchdog_unconfined_t

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🚪 ENTRYPOINTS 🚪

The watchdog_unconfined_t SELinux type can be entered via the watchdog_unconfined_exec_t file type.

The default entrypoint paths for the watchdog_unconfined_t domain are literally these:

/etc/watchdog.d(/.*)?, /usr/libexec/watchdog/scripts(/.*)?

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. iconic behaviour, honestly.

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

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

The following process types are defined for watchdog_unconfined:

watchdog_unconfined_t

Note: semanage permissive -a watchdog_unconfined_t can be used to make the process type watchdog_unconfined_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 it's still snitching 😭

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🎀 BOOLEANS 🎀

SELinux policy is customizable based on least access required. The watchdog_unconfined policy is extremely flexible and has several booleans that allow you to manipulate the policy and run watchdog_unconfined with the tightest access possible. we love a customizable queen 💖

• deny_execmem — turn this on if you want to deny user domains applications to map a memory region as both executable and writable. this is dangerous and the executable should be reported in bugzilla. Disabled by default.

setsebool -P deny_execmem 1

• mmap_low_allowed — turn this on if you want to control the ability to mmap a low area of the address space, as configured by /proc/sys/vm/mmap_min_addr. Disabled by default.

setsebool -P mmap_low_allowed 1

• secure_mode_insmod — turn this on if you want to disable kernel module loading. Disabled by default.

setsebool -P secure_mode_insmod 1

• selinuxuser_execheap — turn this on if you want to allow unconfined executables to make their heap memory executable. doing this is a really bad idea. probably indicates a badly coded executable, but could indicate an attack — that executable should be reported in bugzilla. Disabled by default. 🚩

setsebool -P selinuxuser_execheap 1

• selinuxuser_execstack — turn this on if you want to allow unconfined executables to make their stack executable. this should never, ever be necessary. probably indicates a badly coded executable, but could indicate an attack — that executable should be reported in bugzilla. Disabled by default. 🚩

setsebool -P selinuxuser_execstack 1

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🗂️ MANAGED FILES 🗂️

The SELinux process type watchdog_unconfined_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 — SELinux isn't out here doing everything for you 🙈

• file_type — all files on the system. that's it. that's the list. main character energy fr fr.

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🌸 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. The SELinux watchdog_unconfined policy is very flexible, allowing users to setup their watchdog_unconfined processes in as secure a method as possible.

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the watchdog_unconfined. 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 watchdog_unconfined_exec_t '/srv/watchdog_unconfined/content(/.*)?'
restorecon -R -v /srv/mywatchdog_unconfined_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 watchdog_unconfined:

watchdog_unconfined_exec_t

• Set files with the watchdog_unconfined_exec_t type, if you want to transition an executable to the watchdog_unconfined_t domain.

Paths:

/etc/watchdog.d(/.*)?, /usr/libexec/watchdog/scripts(/.*)?

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. don't skip the restorecon step, bestie, I'm begging 😭

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🧚 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. yes, a GUI, for the icons who don't wanna live in the terminal 24/7 💅

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✍️ AUTHOR ✍️

This manual page was auto-generated using sepolicy manpage . — yes there's a space before the period, that's literally how it's written, no I will not be fixing it ✨

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🦋 SEE ALSO 🦋

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

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and that's the whole thing, bestie 🎀 this page is from watchdog_unconfined, dated 26-10-06, and the footer reads watchdo..._selinux(8) — truncated title and all, we stan a consistent icon 💖 periodt.