policy_module(devices, 1.15.0)

########################################
#
# Declarations
#

attribute device_node;
attribute memory_raw_read;
attribute memory_raw_write;
attribute devices_unconfined_type;

#
# device_t is the type of /dev.
#
type device_t;
fs_associate_tmpfs(device_t)
files_base_file(device_t)
files_mountpoint(device_t)
files_associate_tmp(device_t)
fs_type(device_t)
fs_use_trans devtmpfs gen_context(system_u:object_r:device_t,s0);
dev_node(device_t)

#
# Type for /dev/agpgart
#
type agp_device_t;
dev_node(agp_device_t)

#
# Type for /dev/apm_bios
#
type apm_bios_t;
dev_node(apm_bios_t)

#
# Type for /dev/autofs
#
type autofs_device_t;
dev_node(autofs_device_t)

type cardmgr_dev_t;
dev_node(cardmgr_dev_t)
files_tmp_file(cardmgr_dev_t)

#
# clock_device_t is the type of
# /dev/rtc.
#
type clock_device_t;
dev_node(clock_device_t)

#
# cpu control devices /dev/cpu/0/*
#
type cpu_device_t;
dev_node(cpu_device_t)

#
# Type for /dev/cachefilesd
#
type cachefiles_device_t alias cachefiles_dev_t;
dev_node(cachefiles_device_t)

#
# Type for /dev/crash
#
type crash_device_t;
dev_node(crash_device_t)

type ecryptfs_device_t;
dev_node(ecryptfs_device_t)

# for the IBM zSeries z90crypt hardware ssl accelorator
type crypt_device_t;
dev_node(crypt_device_t)

#
# dlm_misc_device_t is the type of /dev/misc/dlm.*
#
type dlm_control_device_t;
dev_node(dlm_control_device_t)

type dri_device_t;
dev_node(dri_device_t)

type hsa_device_t;
dev_node(hsa_device_t)

type event_device_t;
dev_node(event_device_t)

#
# Type for framebuffer /dev/fb/*
#
type framebuf_device_t;
dev_node(framebuf_device_t)

#
# Type for hyperv devices
#
type hypervkvp_device_t;
dev_node(hypervkvp_device_t)

type hypervvssd_device_t;
dev_node(hypervvssd_device_t)

#
# Type for /dev/ss0
#
type gpfs_device_t;
dev_node(gpfs_device_t)

#
# Type for /dev/gpiochip*
#
type gpio_device_t;
dev_node(gpio_device_t)

#
# Type for /dev/ipmi/0
#
type ipmi_device_t;
dev_node(ipmi_device_t)

#
# Type for /dev/infiniband
#
type infiniband_device_t;
dev_node(infiniband_device_t)

#
# Type for /dev/infiniband mgmt devices
#
type infiniband_mgmt_device_t;
dev_node(infiniband_mgmt_device_t)

#
# Type for /dev/kmsg
#
type kmsg_device_t;
dev_node(kmsg_device_t)

#
# ksm_device_t is the type of /dev/ksm
#
type ksm_device_t;
dev_node(ksm_device_t)

#
# kvm_device_t is the type of
# /dev/kvm
#
type kvm_device_t;
dev_node(kvm_device_t)
mls_trusted_object(kvm_device_t)

#
# sev_device_t is the type of
# /dev/sev
#
type sev_device_t;
dev_node(sev_device_t)

#
# Type for /dev/lirc
#
type lirc_device_t;
dev_node(lirc_device_t)

#
# Type for /dev/mapper/control
#
type loop_control_device_t;
dev_node(loop_control_device_t)

#
# Type for /dev/mapper/control
#
type lvm_control_t;
dev_node(lvm_control_t)

type mei_device_t;
dev_node(mei_device_t)

#
# memory_device_t is the type of /dev/kmem,
# /dev/mem and /dev/port.
#
type memory_device_t;
dev_node(memory_device_t)

neverallow ~{ memory_raw_read devices_unconfined_type } memory_device_t:{ chr_file blk_file } read;
neverallow ~{ memory_raw_write devices_unconfined_type } memory_device_t:{ chr_file blk_file } { append write };

type misc_device_t;
dev_node(misc_device_t)

#
# A general type for modem devices.
#
type modem_device_t;
dev_node(modem_device_t)

#
# A general type for monitor devices.
#
type monitor_device_t;
dev_node(monitor_device_t)

#
# A more general type for mouse devices.
#
type mouse_device_t;
dev_node(mouse_device_t)

#
# Type for /dev/mptctl used to check RAID status.
#
type mptctl_device_t;
dev_node(mptctl_device_t)

#
# Type for /dev/cpu/mtrr and /proc/mtrr
#
type mtrr_device_t;
dev_node(mtrr_device_t)
files_mountpoint(mtrr_device_t)
genfscon proc /mtrr gen_context(system_u:object_r:mtrr_device_t,s0)

#
# network control devices
#
type netcontrol_device_t;
dev_node(netcontrol_device_t)

#
# null_device_t is the type of /dev/null.
#
type null_device_t;
dev_node(null_device_t)
mls_trusted_object(null_device_t)
sid devnull gen_context(system_u:object_r:null_device_t,s0)

#
# Type for /dev/nvram
#
type nvram_device_t;
dev_node(nvram_device_t)

#
# Type for controller device nodes
#
type nvme_device_t;
dev_node(nvme_device_t)

#
# Type for /dev/op_panel
# Type for /dev/opal-prd
#
type opal_device_t;
dev_node(opal_device_t)

#
# Type for /dev/pmu
#
type power_device_t;
dev_node(power_device_t)

type printer_device_t;
dev_node(printer_device_t)
mls_file_write_within_range(printer_device_t)

#
# qemu control devices
#
type qemu_device_t;
dev_node(qemu_device_t)

#
# random_device_t is the type of /dev/random
#
type random_device_t;
dev_node(random_device_t)

type scanner_device_t;
dev_node(scanner_device_t)

#
# Type for smartcards
#
type smartcard_device_t;
dev_node(smartcard_device_t)

#
# Type for sound devices and mixers
#
type sound_device_t;
dev_node(sound_device_t)

#
# sysfs_t is the type for the /sys pseudofs
#
type sysfs_t;
files_mountpoint(sysfs_t)
fs_type(sysfs_t)
genfscon sysfs / gen_context(system_u:object_r:sysfs_t,s0)

type cpu_online_t;
files_type(cpu_online_t)
dev_associate_sysfs(cpu_online_t)

#
# Type for /dev/tpm
#
type tpm_device_t;
dev_node(tpm_device_t)

#
# urandom_device_t is the type of /dev/urandom
#
type urandom_device_t;
dev_node(urandom_device_t)

#
# usbfs_t is the type for the /proc/bus/usb pseudofs
#
type usbfs_t alias usbdevfs_t;
files_mountpoint(usbfs_t)
fs_noxattr_type(usbfs_t)
genfscon usbfs / gen_context(system_u:object_r:usbfs_t,s0)
genfscon usbdevfs / gen_context(system_u:object_r:usbfs_t,s0)

#
# usb_device_t is the type for /dev/bus/usb/[0-9]+/[0-9]+
#
type usb_device_t;
dev_node(usb_device_t)

#
# usb_device_t is the type for /dev/usbmon
#
type usbmon_device_t;
dev_node(usbmon_device_t)

#
# userio_device_t is the type for /dev/uio[0-9]+
#
type userio_device_t;
dev_node(userio_device_t)

#
# uhid_device_t is the type for /dev/uhid
#
type uhid_device_t;
dev_node(uhid_device_t)

type vfio_device_t;
dev_node(vfio_device_t)

type v4l_device_t;
dev_node(v4l_device_t)

type vsock_device_t;
dev_node(vsock_device_t)

type vmci_device_t;
dev_node(vmci_device_t)

#
# vhost_device_t is the type for /dev/vhost-net
#
type vhost_device_t;
dev_node(vhost_device_t)
mls_trusted_object(vhost_device_t)

# Type for vmware devices.
type vmware_device_t;
dev_node(vmware_device_t)

type watchdog_device_t;
dev_node(watchdog_device_t)

#
# wireless control devices
#
type wireless_device_t;
dev_node(wireless_device_t)

type xen_device_t;
dev_node(xen_device_t)

type xserver_misc_device_t;
dev_node(xserver_misc_device_t)

#
# zero_device_t is the type of /dev/zero.
#
type zero_device_t;
dev_node(zero_device_t)
mls_trusted_object(zero_device_t)

########################################
#
# Rules for all device nodes
#

allow device_node device_t:filesystem associate;

fs_associate(device_node)
fs_associate_tmpfs(device_node)

files_associate_tmp(device_node)

########################################
#
# Unconfined access to this module
#

allow devices_unconfined_type self:capability sys_rawio;
allow devices_unconfined_type device_node:{ blk_file lnk_file } *;
allow devices_unconfined_type device_node:{ file chr_file } ~{ execmod entrypoint };
allow devices_unconfined_type mtrr_device_t:file ~{ execmod entrypoint };
dev_getattr_all(devices_unconfined_type)

