bluetooth_selinux(8) - Linux man page

Name

bluetooth_selinux - Security Enhanced Linux Policy for the bluetooth processes

Description

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

The bluetooth processes execute with the bluetooth_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 bluetooth_t

Entrypoints

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

/usr/bin/dund, /usr/bin/hidd, /usr/sbin/hcid, /usr/sbin/sdpd, /usr/bin/rfcomm, /usr/sbin/hid2hci, /usr/sbin/hciattach, /usr/sbin/bluetoothd

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

The following process types are defined for bluetooth:

bluetooth_helper_t, bluetooth_t

Note: semanage permissive -a bluetooth_t

can be used to make the process type bluetooth_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. bluetooth policy is extremely flexible and has several booleans that allow you to manipulate the policy and run bluetooth with the tightest access possible.

If you want to allow xguest to use blue tooth devices, you must turn on the xguest_use_bluetooth boolean.

setsebool -P xguest_use_bluetooth 1

If you want to allow xguest to use blue tooth devices, you must turn on the xguest_use_bluetooth boolean.

setsebool -P xguest_use_bluetooth 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 bluetooth policy is very flexible allowing users to setup their bluetooth processes in as secure a method as possible.

The following file types are defined for bluetooth:

bluetooth_conf_rw_t

- Set files with the bluetooth_conf_rw_t type, if you want to treat the files as bluetooth conf read/write content.

bluetooth_conf_t

- Set files with the bluetooth_conf_t type, if you want to treat the files as bluetooth configuration data, usually stored under the /etc directory.

bluetooth_exec_t

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

bluetooth_helper_exec_t

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

bluetooth_helper_tmp_t

- Set files with the bluetooth_helper_tmp_t type, if you want to store bluetooth helper temporary files in the /tmp directories.

bluetooth_helper_tmpfs_t

- Set files with the bluetooth_helper_tmpfs_t type, if you want to store bluetooth helper files on a tmpfs file system.

bluetooth_initrc_exec_t

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

bluetooth_lock_t

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

bluetooth_tmp_t

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

bluetooth_var_lib_t

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

bluetooth_var_run_t

- Set files with the bluetooth_var_run_t type, if you want to store the bluetooth 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 bluetooth_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.

bluetooth_conf_rw_t

/etc/bluetooth/link_key

bluetooth_lock_t
bluetooth_tmp_t
bluetooth_var_lib_t

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

bluetooth_var_run_t

/var/run/sdp

/var/run/bluetoothd_address

initrc_tmp_t
mnt_t

/mnt(/[^/]*)

/mnt(/[^/]*)?

/rhev(/[^/]*)?

/media(/[^/]*)

/media(/[^/]*)?

/etc/rhgb(/.*)?

/media/.hal-.*

/net

/afs

/misc

/rhev

root_t

/initrd

tmp_t

/tmp

/usr/tmp

/var/tmp

/var/tmp/vi.recover

usbfs_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 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.