rasdaemon_selinux(8)

💅 rasdaemon_selinux(8) — the SELinux policy for rasdaemon

okay bestie, welcome to the rasdaemon_selinux manual page, living under the SELinux Policy rasdaemon umbrella. we're gonna talk about how SELinux locks down the rasdaemon processes and honestly it's giving secure, it's giving protected, it's giving mandatory access control 🎀

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✨ NAME ✨

rasdaemon_selinux — the Security Enhanced Linux Policy for the rasdaemon processes 🫶

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🌸 DESCRIPTION 🌸

so, Security-Enhanced Linux secures the rasdaemon processes via flexible mandatory access control. that's the whole vibe. 💅

The rasdaemon processes execute with the rasdaemon_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 rasdaemon_t

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🦋 ENTRYPOINTS 🦋

The rasdaemon_t SELinux type can be entered via the rasdaemon_exec_t file type. that's the doorway, the portal, the main character entrance honestly ✨

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

/usr/bin/rasdaemon, /usr/bin/ras-mc-ctl

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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 rasdaemon policy is very flexible allowing users to setup their rasdaemon processes in as secure a method as possible. lowkey obsessed with how adjustable this is 💜

The following process types are defined for rasdaemon:

rasdaemon_t

Note: semanage permissive -a rasdaemon_t can be used to make the process type rasdaemon_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 show up 😭

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🍓 BOOLEANS 🍓

SELinux policy is customizable based on least access required. rasdaemon policy is extremely flexible and has several booleans that allow you to manipulate the policy and run rasdaemon with the tightest access possible. tightest access = the it-girl of security configs 💅

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 rasdaemon_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 DAC is still doing its thing, SELinux isn't out here overriding anybody, no cap 🧚

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

debugfs_t

/sys/kernel/debug

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

rasdaemon_var_lib_t

/var/lib/rasdaemon(/.*)?

root_t

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

sysfs_t

/sys(/.*)?

tracefs_t

/sys/kernel/tracing

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💖 FILE CONTEXTS 💖

SELinux requires files to have an extended attribute to define the file type. yes, files have vibes too, and their vibe is stored in an xattr ✨

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

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for the rasdaemon, 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. relocation era, honestly iconic 💅

semanage fcontext -a -t rasdaemon_exec_t '/srv/rasdaemon/content(/.*)?'
restorecon -R -v /srv/myrasdaemon_content

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

The following file types are defined for rasdaemon:

rasdaemon_exec_t

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

Paths:

/usr/bin/rasdaemon, /usr/bin/ras-mc-ctl

rasdaemon_unit_file_t

• Set files with the rasdaemon_unit_file_t type, if you want to treat the files as rasdaemon unit content.

Paths:

/usr/lib/systemd/system/rasdaemon.*, /usr/lib/systemd/system/ras-mc-ctl.*

rasdaemon_var_lib_t

• Set files with the rasdaemon_var_lib_t type, if you want to store the rasdaemon files under the /var/lib directory.

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 wisely bestie, chcon is the fling and semanage fcontext is the committed relationship 💀

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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. a GUI!! for the visual learners, we love to see it 🌈

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🦋 AUTHOR 🦋

This manual page was auto-generated using sepolicy manpage .

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🌟 SEE ALSO 🌟

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

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and that's the whole page, bestie!! this cutie was brought to you by rasdaemon, dated 26-10-06, and it lives at rasdaemon_selinux(8). go forth and label responsibly 💜✨🎀