udev_selinux(8) udev SELinux Policy documentation udev_selinux(8)NAMEudev_selinux - Security Enhanced Linux Policy for the udev processes
DESCRIPTION
Security-Enhanced Linux secures the udev processes via flexible manda‐
tory access control.
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the udev_t,
you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the
udev_t, you must turn on the allow_kerberos boolean.
setsebool -P allow_kerberos 1
If you want to allow system to run with NI for the udev_t, you must
turn on the allow_ypbind boolean.
setsebool -P allow_ypbind 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 udev policy is very flexible allowing users to setup their udev
processes in as secure a method as possible.
The following file types are defined for udev:
udev_etc_t
- Set files with the udev_etc_t type, if you want to store udev files
in the /etc directories.
udev_exec_t
- Set files with the udev_exec_t type, if you want to transition an
executable to the udev_t domain.
Paths:
/lib/udev/udevd, /usr/bin/udevinfo, /sbin/udevd, /sbin/udev,
/usr/sbin/wait_for_sysfs, /sbin/udevsend, /usr/sbin/udevadm,
/usr/bin/udevadm, /usr/sbin/start_udev, /usr/sbin/udev,
/sbin/wait_for_sysfs, /usr/sbin/udevsend, /sbin/start_udev,
/sbin/udevstart, /bin/udevadm, /lib/udev/udev-acl, /sbin/udevadm,
/usr/sbin/udevd, /usr/lib/systemd/systemd-udevd, /usr/sbin/udevs‐
tart, /usr/lib/udev/udev-acl, /usr/lib/udev/udevd
udev_helper_exec_t
- Set files with the udev_helper_exec_t type, if you want to transition
an executable to the udev_helper_t domain.
Paths:
/etc/udev/scripts/.+, /etc/hotplug.d/default/udev.*, /etc/dev.d/.+
udev_rules_t
- Set files with the udev_rules_t type, if you want to treat the files
as udev rules data.
udev_var_run_t
- Set files with the udev_var_run_t type, if you want to store the udev
files under the /run directory.
Paths:
/var/run/udev(/.*)?, /dev/.udevdb, /var/run/PackageKit/udev(/.*)?,
/dev/.udev(/.*)?, /dev/udev.tbl, /var/run/libgpod(/.*)?
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
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
udev policy is very flexible allowing users to setup their udev pro‐
cesses in as secure a method as possible.
The following process types are defined for udev:
udev_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process
type permissive. Permissive process types are not denied access by
SELinux. AVC messages will still be generated.
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 pol‐
icy modules.
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), udev(8), semanage(8), restorecon(8), chcon(1)dwalsh@redhat.com udev udev_selinux(8)
