oracleasm_selinux(8)

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

💅 oracleasm_selinux — the SELinux glow-up for oracleasm 💅

okay bestie, so this is oracleasm_selinux(8) — the SELinux policy page for the oracleasm processes. yes it's a manual page. no it's not boring, we're making it cute. let's go ✨

🦋 NAME 🦋

so basically: oracleasm_selinux — the Security Enhanced Linux Policy for the oracleasm processes. that's the whole vibe. 💖

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the oracleasm processes via flexible mandatory access control. mandatory means you don't get a choice, bestie — that's the whole point, it's giving boundaries.

The oracleasm processes execute with the oracleasm_t SELinux type. Wanna check if you've got these processes running? run the ps command with the -Z qualifier, like this:

ps -eZ | grep oracleasm_t

slay. now you know. 👑

🚪 ENTRYPOINTS 🚪

The oracleasm_t SELinux type can be entered via the oracleasm_exec_t file type. that's the door, iykyk.

The default entrypoint paths for the oracleasm_t domain are literally just this one:

/usr/bin/oracleasm

one path. main character energy. 🎀

👯 PROCESS TYPES 👯

SELinux defines process types (domains) for each process running on the system. yes, every process gets its own little domain, it's giving ✨assigned seating✨.

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

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

The following process types are defined for oracleasm:

  • oracleasm_t
Note: semanage permissive -a oracleasm_t can be used to make the process type oracleasm_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it stops yelling at you functionally but it's still logging everything in the group chat. 😭

🔘 BOOLEANS 🔘

SELinux policy is customizable based on least access required. the oracleasm policy is extremely flexible and has several booleans that allow you to manipulate the policy and run oracleasm with the tightest access possible. little toggles, big power. 🫶

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

📁 MANAGED FILES 📁

The SELinux process type oracleasm_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 doing all the work for you, 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

oracleasm_conf_t

/etc/sysconfig/oracleasm(/.*)?
/etc/sysconfig/oracleasm-_dev_oracleasm

oracleasm_tmp_t

(yes this one's just listed, no default paths given — it's mysterious like that 🧚)

root_t

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

sysfs_t

/sys(/.*)?

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

🌸 STANDARD FILE CONTEXT 🌸

SELinux defines the file context types for the oracleasm. if you wanted to store files with these types in a different paths (yes, that's how it's phrased, we keep it), you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. like so:

semanage fcontext -a -t oracleasmfs_t '/srv/oracleasm/content(/.*)?'
restorecon -R -v /srv/myoracleasm_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🌈

The following file types are defined for oracleasm:

oracleasm_conf_t

  • Set files with the oracleasm_conf_t type, if you want to treat the files as oracleasm configuration data, usually stored under the /etc directory.

Paths:

/etc/sysconfig/oracleasm(/.*)?,
/etc/sysconfig/oracleasm-_dev_oracleasm

oracleasm_exec_t

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

oracleasm_initrc_exec_t

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

oracleasm_tmp_t

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

oracleasmfs_t

  • Set files with the oracleasmfs_t type, if you want to treat the files as oracleasmfs data.
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. chcon is the temporary tattoo, semanage fcontext is the actual commitment. 💅

🛠️ COMMANDS 🛠️

<red>semanage fcontext</red> 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 whole GUI, for the girlies who don't live in the terminal (we respect you, we just don't understand you 🫶).

👑 AUTHOR 👑

This manual page was auto-generated using sepolicy manpage. a bot wrote it and honestly? it ate. ✨

👀 SEE ALSO 👀

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

like, read those too. they're the supporting cast and they're iconic. 🌟

k that's the whole page bestie, no cap, every flag and path accounted for 💜

this lil beauty is oracleasm_selinux(8) from version 26-10-06, dated 26-10-06 — mwah, go secure some oracleasm processes, you got this 🎀🦋💖

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