uucpd_selinux(8) - Linux man page

Name

uucpd_selinux - Security Enhanced Linux Policy for the uucpd processes

Description

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

The uucpd processes execute with the uucpd_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 uucpd_t

Entrypoints

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

/usr/sbin/uucico

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

The following process types are defined for uucpd:

uucpd_t

Note: semanage permissive -a uucpd_t

can be used to make the process type uucpd_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 uucpd policy is very flexible allowing users to setup their uucpd processes in as secure a method as possible.

The following file types are defined for uucpd:

uucpd_exec_t

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

uucpd_lock_t

- Set files with the uucpd_lock_t type, if you want to treat the files as uucpd lock data, stored under the /var/lock directory

uucpd_log_t

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

uucpd_ro_t

- Set files with the uucpd_ro_t type, if you want to treat the files as uucpd read/only content.

uucpd_rw_t

- Set files with the uucpd_rw_t type, if you want to treat the files as uucpd read/write content.

uucpd_spool_t

- Set files with the uucpd_spool_t type, if you want to store the uucpd files under the /var/spool directory.

uucpd_tmp_t

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

uucpd_var_run_t

- Set files with the uucpd_var_run_t type, if you want to store the uucpd 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.

Port Types

SELinux defines port types to represent TCP and UDP ports.

You can see the types associated with a port by using the following command:

semanage port -l

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

The following port types are defined for uucpd:

uucpd_port_t
Default Defined Ports:: tcp 540

Managed Files

The SELinux process type uucpd_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.

initrc_tmp_t

mnt_t

/mnt(/[^/]*)

/mnt(/[^/]*)?

/rhev(/[^/]*)?

/media(/[^/]*)

/media(/[^/]*)?

/etc/rhgb(/.*)?

/media/.hal-.*

/net

/afs

/misc

/rhev

tmp_t

/tmp

/usr/tmp

/var/tmp

/var/tmp/vi.recover

uucpd_lock_t

/var/lock/uucp(/.*)?

uucpd_log_t

/var/log/uucp(/.*)?

uucpd_rw_t
uucpd_spool_t

/var/spool/uucp(/.*)?

/var/spool/uucppublic(/.*)?

uucpd_tmp_t
uucpd_var_run_t

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 port can also be used to manipulate the port definitions

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.