l2tpd_selinux(8)

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

✨ l2tpd_selinux ✨

okay so bestie, this is the manual page for l2tpd_selinux — it's giving security, it's giving policy, and it's literally all about how SELinux keeps the l2tpd processes on a leash. no cap, this is the glow-up your terminal has been waiting for 💅

🎀 NAME 🎀

l2tpd_selinux — Security Enhanced Linux Policy for the l2tpd processes

so like, the whole vibe is: SELinux but make it specifically for l2tpd. icon behavior only ✨

🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the l2tpd processes via flexible mandatory access control. yes bestie, mandatory — not the optional kind, the "you literally have to" kind 💀

The l2tpd processes execute with the l2tpd_t SELinux type. wanna check if you've got these processes running? just run the ps command with the -Z qualifier.

For example:

ps -eZ | grep l2tpd_t

slay, now you can see exactly what's what 🔥

🦋 ENTRYPOINTS 🦋

The l2tpd_t SELinux type can be entered via the l2tpd_exec_t file type.

The default entrypoint paths for the l2tpd_t domain are the following:

/usr/bin/.*l2tpd, /usr/libexec/nm-l2tp-service

these are the doors bestie, and they're specific doors 🚪✨

💜 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 l2tpd policy is very flexible allowing users to setup their l2tpd processes in as secure a method as possible. flexible and secure? we love a multitasking queen 👑

The following process types are defined for l2tpd:

  • l2tpd_t
Note: semanage permissive -a l2tpd_t can be used to make the process type l2tpd_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 pass — the receipts still get logged, iykyk 🧾

🍓 BOOLEANS 🍓

SELinux policy is customizable based on least access required. l2tpd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run l2tpd with the tightest access possible. tightest access possible — she's an icon, she's a legend, and she is the moment 💅

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 confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.

setsebool -P nscd_use_shm 1

three booleans, all enabled by default, all doing their lil jobs 😌✅

🌈 PORT TYPES 🌈

SELinux defines port types to represent TCP and UDP ports.

You can see the types associated with a port by using the following command:

semanage port -l

Policy governs the access confined processes have to these ports. SELinux l2tpd policy is very flexible allowing users to setup their l2tpd processes in as secure a method as possible.

The following port types are defined for l2tpd:

  • l2tp_port_t

Default Defined Ports:

tcp 1701
udp 1701

1701 for both TCP and UDP — matching set, periodt 🎯✨

🧚 MANAGED FILES 🧚

The SELinux process type l2tpd_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. okay so like, SELinux is doing its thing but DAC is still in the chat — everybody's got a role bestie 🙈

NetworkManager_var_run_t

/run/teamd(/.*)?
/run/nm-xl2tpd.conf.*
/run/nm-dhclient.*
/run/NetworkManager(/.*)?
/run/wpa_supplicant(/.*)?
/run/wicd.pid
/run/NetworkManager.pid
/run/nm-dns-dnsmasq.conf
/run/wpa_supplicant-global

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

ipsec_key_file_t

/etc/ipsec.d(/.*)?
/etc/racoon/certs(/.*)?
/etc/ipsec.secrets.*
/var/lib/ipsec/nss(/.*)?
/etc/strongswan/ipsec.d(/.*)?
/etc/strongswan/swanctl/rsa(/.*)?
/etc/strongswan/swanctl/pkcs.*
/etc/strongswan/swanctl/x509.*
/etc/strongswan/ipsec.secrets.*
/etc/strongswan/swanctl/ecdsa(/.*)?
/etc/strongswan/swanctl/bliss/(/.*)?
/etc/strongswan/swanctl/pubkey(/.*)?
/etc/strongswan/swanctl/private(/.*)?
/etc/racoon/psk.txt

l2tpd_var_run_t

/run/*.xl2tpd.*
/run/.*l2tpd.pid
/run/.*l2tpd(/.*)?
/run/prol2tpd.ctl

root_t

/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp

that's a LOT of file types but we're not skipping a single one — every path deserves its moment 💖

👑 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. SELinux l2tpd policy is very flexible allowing users to setup their l2tpd processes in as secure a method as possible.

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the l2tpd, 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. relabeling era, we're so here for it 🎀

semanage fcontext -a -t l2tpd_exec_t '/srv/l2tpd/content(/.*)?'
restorecon -R -v /srv/myl2tpd_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex bestie, she contains multitudes 💫

The following file types are defined for l2tpd:

l2tpd_exec_t

  • Set files with the l2tpd_exec_t type, if you want to transition an executable to the l2tpd_t domain.

Paths:

/usr/bin/.*l2tpd, /usr/libexec/nm-l2tp-service

l2tpd_initrc_exec_t

  • Set files with the l2tpd_initrc_exec_t type, if you want to transition an executable to the l2tpd_initrc_t domain.

l2tpd_tmp_t

  • Set files with the l2tpd_tmp_t type, if you want to store l2tpd temporary files in the /tmp directories.

l2tpd_var_run_t

  • Set files with the l2tpd_var_run_t type, if you want to store the l2tpd files under the /run or /var/run directory.

Paths:

/run/*.xl2tpd.*, /run/.*l2tpd.pid, /run/.*l2tpd(/.*)?,
/run/prol2tpd.ctl
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. tbh chcon is giving temporary tattoo energy and semanage fcontext is giving actual commitment — choose wisely bestie 💀

💀 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 port can also be used to manipulate the port definitions.

semanage boolean can also be used to manipulate the booleans.

system-config-selinux is a GUI tool available to customize SELinux policy settings.

semanage really said "I contain multitudes" and honestly? she ate 👏

🫶 AUTHOR 🫶

This manual page was auto-generated using sepolicy manpage. auto-generated and still this iconic? we love to see it ✨

💜 SEE ALSO 💜

selinux(8), l2tpd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

go read these next, bestie — the lore is deep and you're gonna want the full story 📚💅

and that's the whole page! this was l2tpd manual page, version 26-10-06, dated 26-10-06, and honestly? she's serving secure, she's serving flexible, she's serving mandatory access control realness. no cap, go protect those processes 🫶💖✨

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