SYSTEMD_NETWORK_GENERATOR_SELINUX(8)

🦋 systemd_network_generator_selinux — the SELinux policy for systemd_network_generator (section 8 of the manual, bestie)

Okay so real quick before we dive in: this is from the system...selinux(8) manual family, and it's literally all about how SELinux locks down the systemd_network_generator processes. Stay with me, it's gonna slay. 💅

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✨ NAME ✨

systemd_network_generator_selinux — Security Enhanced Linux Policy for the systemd_network_generator processes 🫶

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the systemd_network_generator processes via flexible mandatory access control. That's the whole vibe — MAC, not DAC, and it's iconic.

The systemd_network_generator processes execute with the systemd_network_generator_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 systemd_network_generator_t

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🎀 ENTRYPOINTS 🎀

The systemd_network_generator_t SELinux type can be entered via the systemd_network_generator_exec_t file type. That's the door, no cap 🚪✨

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

/usr/lib/systemd/systemd-network-generator

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👑 PROCESS TYPES 👑

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

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

Policy governs the access confined processes have to files. SELinux systemd_network_generator policy is very flexible, allowing users to setup their systemd_network_generator processes in as secure a method as possible. It's giving "customizable but safe." 🔥

The following process types are defined for systemd_network_generator:

systemd_network_generator_t

Note: semanage permissive -a systemd_network_generator_t can be used to make the process type systemd_network_generator_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like… it stops blocking, but it still snitches. 💀

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🌈 BOOLEANS 🌈

SELinux policy is customizable based on least access required. The systemd_network_generator policy is extremely flexible and has several booleans that allow you to manipulate the policy and run systemd_network_generator with the tightest access possible. Frugal access, we love her. 🍓

• If you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on the daemons_dontaudit_scheduling boolean. Enabled by default.

setsebool -P daemons_dontaudit_scheduling 1

• 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 systemd_network_generator_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the process's UID still needs to have DAC permissions — SELinux isn't out here overriding the basics, bestie. 🙈

cluster_conf_t

/etc/cluster(/.*)?

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

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💖 FILE CONTEXTS 💖

SELinux requires files to have an extended attribute to define the file type. That's the whole labeling moment, periodt.

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the systemd_network_generator. 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 systemd_network_generator_exec_t '/srv/systemd_network_generator/content(/.*)?'
restorecon -R -v /srv/mysystemd_network_generator_content

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

The following file types are defined for systemd_network_generator:

systemd_network_generator_exec_t

• Set files with the systemd_network_generator_exec_t type, if you want to transition an executable to the systemd_network_generator_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.

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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.

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🦋 AUTHOR 🦋

This manual page was auto-generated using sepolicy manpage. Iconic automation behavior honestly. ✨

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🌟 SEE ALSO 🌟

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

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okay that's the whole page, you ate that 💅 This little masterpiece was generated for systemd_network_generator, dated 26-10-06, and lives in the system...selinux(8) manual. Go forth and be secure, bestie 🫶🎀