gfs_controld_selinux(8)

✨ gfs_controld_selinux — the SELinux glow-up for gfs_controld processes ✨

okay bestie, so this is the gfs_controld_selinux(8) manual page, and it's literally all about the Security-Enhanced Linux policy for the gfs_controld processes. no cap, it's giving "mandatory access control but make it fashion." 💅

💖 DESCRIPTION 💖

Security-Enhanced Linux secures the gfs_controld processes via flexible mandatory access control. it's like a bouncer for your processes, but make it ✨policy✨.

the gfs_controld processes execute with the gfs_controld_t SELinux type. you can check if you have these processes running by executing the ps command with the -Z qualifier. it's lowkey iconic how easy that is.

for example:

ps -eZ | grep gfs_controld_t

🚪 ENTRYPOINTS 🚪

the gfs_controld_t SELinux type can be entered via the gfs_controld_exec_t file type. it's the VIP entrance, bestie.

the default entrypoint paths for the gfs_controld_t domain are the following:

/usr/bin/gfs_controld

👯 PROCESS TYPES 👯

SELinux defines process types (domains) for each process running on the system. it's a whole vibe.

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

policy governs the access confined processes have to files. SELinux gfs_controld policy is very flexible allowing users to setup their gfs_controld processes in as secure a method as possible. slay.

the following process types are defined for gfs_controld:

• gfs_controld_t

Note: semanage permissive -a gfs_controld_t can be used to make the process type gfs_controld_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so it's like, it's not gonna block you, but it's still gonna be messy and tell everyone about it. 😭

🎚️ BOOLEANS 🎚️

SELinux policy is customizable based on least access required. gfs_controld policy is extremely flexible and has several booleans that allow you to manipulate the policy and run gfs_controld with the tightest access possible. it's giving custom settings, your fave.

if you want to allow cluster administrative cluster domains memcheck-amd64- to use executable memory, you must turn on the cluster_use_execmem boolean. Disabled by default.

setsebool -P cluster_use_execmem 1

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

📁 MANAGED FILES 📁

the SELinux process type gfs_controld_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. it's a whole hierarchy, bestie.

• cluster_conf_t

/etc/cluster(/.*)?

• cluster_log
• 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

• gfs_controld_tmpfs_t
• gfs_controld_var_run_t

/run/gfs_controld.pid

• 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

• sysfs_t

/sys(/.*)?

🏷️ FILE CONTEXTS 🏷️

SELinux requires files to have an extended attribute to define the file type. it's like nametags but for your files, and honestly? obsessed.

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

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

💫 STANDARD FILE CONTEXT 💫

SELinux defines the file context types for the gfs_controld, 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. it's a whole two-step process, but you got it.

semanage fcontext -a -t gfs_controld_exec_t '/srv/gfs_controld/content(/.*)?'
restorecon -R -v /srv/mygfs_controld_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex is literally the main character energy of SELinux, iykyk.

the following file types are defined for gfs_controld:

• gfs_controld_exec_t — Set files with the gfs_controld_exec_t type, if you want to transition an executable to the gfs_controld_t domain.
• gfs_controld_tmpfs_t — Set files with the gfs_controld_tmpfs_t type, if you want to store gfs controld files on a tmpfs file system.
• gfs_controld_var_log_t — Set files with the gfs_controld_var_log_t type, if you want to treat the data as gfs controld var log data, usually stored under the /var/log directory.
• gfs_controld_var_run_t — Set files with the gfs_controld_var_run_t type, if you want to store the gfs controld 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. so like, temporary vs permanent, choose wisely bestie. 💅

🛠️ COMMANDS 🛠️

• semanage fcontext can also be used to manipulate default file context mappings. it's giving multitasking icon.
• semanage permissive can also be used to manipulate whether or not a process type is permissive. vibe check for your process types.
• semanage module can also be used to enable/disable/install/remove policy modules. modular queen behavior.
• semanage boolean can also be used to manipulate the booleans. toggle toggle toggle.
• system-config-selinux is a GUI tool available to customize SELinux policy settings. for when you want to point and click instead of type, no shame.

✍️ AUTHOR ✍️

this manual page was auto-generated using sepolicy manpage. not me being literally auto-generated and still slaying. 💅

👀 SEE ALSO 👀

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

---

okay that's the whole page bestie, you ate that. periodt. 💖

this icon of a manual page is from gfs_controld, dated 26-10-06, and it's the gfs_controld_selinux(8) situation. go off. ✨