corosync_selinux(8) - Linux man page

Name

corosync_selinux - Security Enhanced Linux Policy for the corosync processes

Description

Security-Enhanced Linux secures the corosync processes via flexible mandatory access control.

The corosync processes execute with the corosync_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 corosync_t

Entrypoints

The corosync_t SELinux type can be entered via the "corosync_exec_t" file type. The default entrypoint paths for the corosync_t domain are the following:"

/usr/sbin/corosync, /usr/sbin/corosync-notifyd

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

The following process types are defined for corosync:

corosync_t

Note: semanage permissive -a corosync_t

can be used to make the process type corosync_t permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

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

The following file types are defined for corosync:

corosync_exec_t

- Set files with the corosync_exec_t type, if you want to transition an executable to the corosync_t domain.

corosync_initrc_exec_t

- Set files with the corosync_initrc_exec_t type, if you want to transition an executable to the corosync_initrc_t domain.

corosync_tmp_t

- Set files with the corosync_tmp_t type, if you want to store corosync temporary files in the /tmp directories.

corosync_tmpfs_t

- Set files with the corosync_tmpfs_t type, if you want to store corosync files on a tmpfs file system.

corosync_var_lib_t

- Set files with the corosync_var_lib_t type, if you want to store the corosync files under the /var/lib directory.

corosync_var_log_t

- Set files with the corosync_var_log_t type, if you want to treat the data as corosync var log data, usually stored under the /var/log directory.

corosync_var_run_t

- Set files with the corosync_var_run_t type, if you want to store the corosync files under the /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.

Managed Files

The SELinux process type corosync_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.

cluster_tmpfs

cluster_var_lib_t

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

clvmd_tmpfs_t
cmirrord_tmpfs_t
corosync_tmp_t
corosync_tmpfs_t
corosync_var_lib_t

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

corosync_var_log_t

/var/log/cluster/corosync.log.*

corosync_var_run_t

/var/run/cman_.*

/var/run/rsctmp(/.*)?

/var/run/corosync.pid

initrc_state_t
initrc_tmp_t
mnt_t

/mnt(/[^/]*)

/mnt(/[^/]*)?

/rhev(/[^/]*)?

/media(/[^/]*)

/media(/[^/]*)?

/etc/rhgb(/.*)?

/media/.hal-.*

/net

/afs

/misc

/rhev

qpidd_tmpfs_t
rgmanager_tmpfs_t
rgmanager_var_lib_t

/usr/lib(64)?/heartbeat(/.*)?

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

rgmanager_var_run_t

/var/run/heartbeat(/.*)?

/var/run/cpglockd.pid

/var/run/rgmanager.pid

/var/run/cluster/rgmanager.sk

ricci_modclusterd_tmpfs_t
root_t

/initrd

tmp_t

/tmp

/usr/tmp

/var/tmp

/var/tmp/vi.recover

tmpfs_t

/dev/shm

user_tmpfs_t

/dev/shm/mono.*

/dev/shm/pulse-shm.*

var_lib_t

/opt/(.*/)?var/lib(64)?(/.*)?

/var/lib(/.*)?

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.

system-config-selinux is a GUI tool available to customize SELinux policy settings.

Author

This manual page was auto-generated using sepolicy manpage by mgrepl.