oddjob_selinux(8)

💅 oddjob_selinux(8) — SELinux Policy for oddjob ✨

bestie. you found it. this is the oddjob_selinux(8) page from the SELinux Policy oddjob manual, and honestly? it's giving "niche but essential." let's get into it 🎀

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🌸 NAME 🌸

oddjob_selinux — the Security Enhanced Linux policy for the oddjob processes, periodt 💅

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the oddjob processes via flexible mandatory access control. that's the whole vibe — SELinux is the bodyguard, oddjob is the client, and the boundaries are strict.

the oddjob processes execute with the oddjob_t SELinux type. want to check if you've got these processes running? run the ps command with the -Z qualifier. easy.

for example:

ps -eZ | grep oddjob_t

go off, ps. 🔥

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🦋 ENTRYPOINTS 🦋

so how does a process even get into the oddjob_t SELinux type? through the oddjob_exec_t file type, obviously.

the default entrypoint paths for the oddjob_t domain are literally these:

/usr/bin/oddjobd, /usr/bin/oddjob_request

iconic. two of them. no notes. 💖

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. that's just how it is, bestie.

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

policy governs the access confined processes have to files. SELinux oddjob policy is very flexible — it genuinely allows users to set up their oddjob processes in as secure a method as possible. secure but flexible, the dream combo tbh.

the following process types are defined for oddjob:

• oddjob_t
• oddjob_mkhomedir_t

Note: semanage permissive -a oddjob_t can be used to make the process type oddjob_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like… you're not off the hook, you're just on a softer hook. 🙈

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🎀 BOOLEANS 🎀

SELinux policy is customizable based on least access required. oddjob policy is extremely flexible and has several booleans that let you manipulate the policy and run oddjob with the tightest access possible. tightest access = main character energy 🔥

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

three booleans, three little slay buttons. 💅

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🧚 MANAGED FILES 🧚

the SELinux process type oddjob_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 said "i'll handle MAC, you handle DAC," and honestly? teamwork. 🫶

• 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

• oddjob_var_run_t

/run/oddjobd.pid

• root_t

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

• security_t

/selinux

that's the full list, we do not skip entries in this house. 🌈

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💜 FILE CONTEXTS 💜

SELinux requires files to have an extended attribute to define the file type. it's literally the file's whole 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 oddjob policy is very flexible, allowing users to set up their oddjob processes in as secure a method as possible. yes, they say this twice. yes, it's still true. ✨

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the oddjob. if you wanted to store files with these types in different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. like this:

semanage fcontext -a -t oddjob_exec_t '/srv/oddjob/content(/.*)?'
restorecon -R -v /srv/myoddjob_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 oddjob:

🍓 oddjob_exec_t

• set files with the oddjob_exec_t type if you want to transition an executable to the oddjob_t domain.

paths:

/usr/bin/oddjobd, /usr/bin/oddjob_request

🍓 oddjob_mkhomedir_exec_t

• set files with the oddjob_mkhomedir_exec_t type if you want to transition an executable to the oddjob_mkhomedir_t domain.

paths:

/usr/bin/mkhomedir_helper, /usr/lib/oddjob/mkhomedir,
/usr/libexec/oddjob/mkhomedir

🍓 oddjob_unit_file_t

• set files with the oddjob_unit_file_t type if you want to treat the files as oddjob unit content.

🍓 oddjob_var_run_t

• set files with the oddjob_var_run_t type if you want to store the oddjob files under the /run or /var/run 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, bestie — know the difference 😭

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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 whole GUI, for the girlies who like buttons 💅

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🌟 AUTHOR 🌟

this manual page was auto-generated using sepolicy manpage. the machine wrote it, i just gave it a personality. ✨

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💖 SEE ALSO 💖

selinux(8), oddjob(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8), oddjob_mkhomedir_selinux(8), oddjob_mkhomedir_selinux(8)

(yes, oddjob_mkhomedir_selinux(8) is listed twice. no, i'm not fixing it. it's in the source. love that for us. 🙈)

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💫 and that's the whole page, bestie 💫

this one came from the oddjob manual, dated 26-10-06, and it's oddjob_selinux(8) all the way down. go forth, label responsibly, and remember: restorecon -R -v is self care. 🫶💜🎀