policyki...t_selinux(8)

✨ policykit_grant_selinux(8) ✨

okay so bestie, you're looking at the manual for policykit_grant_selinux — yes it's a whole page about the Security Enhanced Linux Policy for the policykit_grant processes, and honestly? it's giving "niche but essential." let's get into it 💅

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🎀 NAME 🎀

policykit_grant_selinux — Security Enhanced Linux Policy for the policykit_grant processes. literally exactly what it says on the tin, no cap.

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the policykit_grant processes via flexible mandatory access control. that's the whole vibe — flexible and mandatory, she contains multitudes 🦋

The policykit_grant processes execute with the policykit_grant_t SELinux type. wanna check if you've got these processes running? just execute the ps command with the -Z qualifier. easy.

For example:

ps -eZ | grep policykit_grant_t

that's it, that's the check. iykyk 🫶

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🚪 ENTRYPOINTS 🚪

The policykit_grant_t SELinux type can be entered via the policykit_grant_exec_t file type.

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

/usr/libexec/polkit-grant-helper.*, /usr/lib/policykit/polkit-grant-helper.*

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. main character energy for every single process, honestly.

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

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

The following process types are defined for policykit_grant:

policykit_grant_t

Note: semanage permissive -a policykit_grant_t can be used to make the process type policykit_grant_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, she's off the leash but she's still being watched 😭

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🍓 BOOLEANS 🍓

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

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

If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

setsebool -P nis_enabled 1

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📁 MANAGED FILES 📁

The SELinux process type policykit_grant_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 gonna do your DAC homework for you, bestie 🙈

faillog_t

/var/log/btmp.*
/run/faillock(/.*)?
/var/log/faillog.*
/var/log/tallylog.*

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

policykit_reload_t

/var/lib/misc/PolicyKit.reload

policykit_var_lib_t

/var/lib/polkit-1(/.*)?
/var/lib/PolicyKit(/.*)?
/var/lib/PolicyKit-public(/.*)?

policykit_var_run_t

/run/polkit(/.*)?
/run/polkit-1(/.*)?
/run/PolicyKit(/.*)?

system_cronjob_var_lib_t

(yes, it's listed with no paths — she's mysterious like that 💜)

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🦋 FILE CONTEXTS 🦋

SELinux requires files to have an extended attribute to define the file type. every file needs its little label, it's called having an identity ✨

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the policykit_grant, so 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 policykit_grant_exec_t '/srv/policykit_grant/content(/.*)?'
restorecon -R -v /srv/mypolicykit_grant_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🧚

The following file types are defined for policykit_grant:

policykit_grant_exec_t

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

Paths:

/usr/libexec/polkit-grant-helper.*, /usr/lib/policykit/polkit-grant-helper.*

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 😤

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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. for the besties who prefer clicking over typing, we respect it 🫶

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🌟 AUTHOR 🌟

This manual page was auto-generated using sepolicy manpage. robot-authored, human-appreciated 💖

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🔥 SEE ALSO 🔥

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

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and that's the whole page, bestie! you ate that reading it fr fr 🎀 this was policykit_grant, dated 26-10-06, living under the name policykit_grant_selinux(8) — slay, go forth and label responsibly 💅✨