mplayer_selinux(8) - Linux man page
Name
mplayer_selinux - Security Enhanced Linux Policy for the mplayer processes
Description
Security-Enhanced Linux secures the mplayer processes via flexible mandatory access control.
The mplayer processes execute with the mplayer_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 mplayer_t
Entrypoints
The mplayer_t SELinux type can be entered via the "mplayer_exec_t" file type. The default entrypoint paths for the mplayer_t domain are the following:"
/usr/bin/vlc, /usr/bin/xine, /usr/bin/mplayer
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 mplayer policy is very flexible allowing users to setup their mplayer processes in as secure a method as possible.
The following process types are defined for mplayer:
mplayer_t
Note: semanage permissive -a mplayer_t
can be used to make the process type mplayer_t permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
Booleans
SELinux policy is customizable based on least access required. mplayer policy is extremely flexible and has several booleans that allow you to manipulate the policy and run mplayer with the tightest access possible.
If you want to allow mplayer executable stack, you must turn on the allow_mplayer_execstack boolean.
setsebool -P allow_mplayer_execstack 1
If you want to allow mplayer executable stack, you must turn on the allow_mplayer_execstack boolean.
setsebool -P allow_mplayer_execstack 1
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 mplayer policy is very flexible allowing users to setup their mplayer processes in as secure a method as possible.
The following file types are defined for mplayer:
mplayer_etc_t
- Set files with the mplayer_etc_t type, if you want to store mplayer files in the /etc directories.
mplayer_exec_t
- Set files with the mplayer_exec_t type, if you want to transition an executable to the mplayer_t domain.
mplayer_home_t
- Set files with the mplayer_home_t type, if you want to store mplayer files in the users home directory.
mplayer_tmpfs_t
- Set files with the mplayer_tmpfs_t type, if you want to store mplayer files on a tmpfs file system.
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 mplayer_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
- mplayer_home_t
/home/[^/]*/.mplayer(/.*)?
- mplayer_tmpfs_t
nfs_t
tmp_t
/tmp
/usr/tmp
/var/tmp
/var/tmp/vi.recover
- user_fonts_cache_t
/home/[^/]*/.fonts/auto(/.*)?
/home/[^/]*/.fontconfig(/.*)?
/home/[^/]*/.fonts.cache-.*
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.
Author
This manual page was auto-generated using sepolicy manpage by mgrepl.
See Also
selinux(8), mplayer(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)