glance_s...r_selinux(8)

🌸 NAME 🌸

ok so bestie, glance_scrubber_selinux is literally the Security Enhanced Linux Policy for the glance_scrubber processes. that's the whole vibe. 💅

(this whole page is the glance_s...r_selinux(8) manual, mwah 🫶)

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the glance_scrubber processes via flexible mandatory access control. yes, mandatory. it's not asking, it's telling. 👑

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

for example:

ps -eZ | grep glance_scrubber_t

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🚪 ENTRYPOINTS 🚪

The glance_scrubber_t SELinux type can be entered via the glance_scrubber_exec_t file type. that's the doorway, no cap.

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

/usr/bin/glance-scrubber

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🫧 PROCESS TYPES 🫧

SELinux defines process types (domains) for each process running on the system. every process gets a little label, it's giving name tags at a party 🎀

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

Policy governs the access confined processes have to files. the SELinux glance_scrubber policy is very flexible, allowing users to set up their glance_scrubber processes in as secure a method as possible. flexible and secure, we love a multitasker ✨

the following process types are defined for glance_scrubber:

glance_scrubber_t

Note: semanage permissive -a glance_scrubber_t can be used to make the process type glance_scrubber_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it'll still snitch to the logs 🙈

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🎚️ BOOLEANS 🎚️

SELinux policy is customizable based on least access required. the glance_scrubber policy is extremely flexible and has several booleans that allow you to manipulate the policy and run glance_scrubber with the tightest access possible. toggles on toggles, iykyk 💅

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 the glance domain to use executable memory and executable stack, you must turn on the glance_use_execmem boolean. Disabled by default.

setsebool -P glance_use_execmem 1

if you want to allow the 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 glance_scrubber_t can manage files labeled with the following file types. the paths listed are the default paths for these file types. heads up tho: the process's UID still needs to have DAC permissions. SELinux said "i got the labels, you got the perms" 😭

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

fusefs_t

/run/user/[0-9]+/gvfs

glance_var_lib_t

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

glance_var_run_t

/run/glance(/.*)?

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. every file needs its little label, it's literally the same energy as putting your name on your lunch in the fridge 🍓

you can see the context of a file using the -Z option to ls.

Policy governs the access confined processes have to these files. the SELinux glance_scrubber policy is very flexible, allowing users to set up their glance_scrubber processes in as secure a method as possible. (yes we said that twice, it's still true 💖)

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for glance_scrubber. 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.

semanage fcontext -a -t glance_scrubber_exec_t '/srv/glance_scrubber/content(/.*)?'
restorecon -R -v /srv/myglance_scrubber_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🌈

the following file types are defined for glance_scrubber:

glance_scrubber_exec_t

• Set files with the glance_scrubber_exec_t type if you want to transition an executable to the glance_scrubber_t domain.

glance_scrubber_initrc_exec_t

• Set files with the glance_scrubber_initrc_exec_t type if you want to transition an executable to the glance_scrubber_initrc_t domain.

glance_scrubber_unit_file_t

• Set files with the glance_scrubber_unit_file_t type if you want to treat the files as glance scrubber unit content.

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 💀

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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. yes, a GUI, for when the terminal is doing too much 🖱️✨

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👑 AUTHOR 👑

This manual page was auto-generated using sepolicy manpage. the robots wrote it, i just gave it a makeover 💅

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🔗 SEE ALSO 🔗

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

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and that's the whole page bestie!! this lil number comes to you from glance_scrubber, dated 26-10-06, and it lives inside the glance_s...r_selinux(8) manual. go forth and label responsibly 🦋💜