selinux-policy/refpolicy/policy/modules/system/udev.te

policy_module(udev,1.2.1)

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

# real declaration moved to mls until
# range_transition works in loadable modules
gen_require(`
	type udev_exec_t;
')

type udev_t;
type udev_helper_exec_t;
kernel_domtrans_to(udev_t,udev_exec_t)
domain_obj_id_change_exempt(udev_t)
domain_entry_file(udev_t,udev_helper_exec_t)
domain_wide_inherit_fd(udev_t)
init_daemon_domain(udev_t,udev_exec_t)

type udev_etc_t alias etc_udev_t;
files_config_file(udev_etc_t)

# udev_runtime_t is the type of the udev table file
# cjp: this is probably a copy of udev_tbl_t and can be removed
type udev_runtime_t;
files_type(udev_runtime_t)

type udev_tbl_t alias udev_tdb_t;
files_type(udev_tbl_t)

type udev_var_run_t;
files_pid_file(udev_var_run_t)

########################################
#
# Local policy
#

allow udev_t self:capability { chown dac_override dac_read_search fowner fsetid sys_admin mknod net_raw net_admin sys_nice sys_rawio sys_resource sys_nice };
dontaudit udev_t self:capability sys_tty_config;
allow udev_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow udev_t self:process { execmem setfscreate };
allow udev_t self:fd use;
allow udev_t self:fifo_file rw_file_perms;
allow udev_t self:sock_file r_file_perms;
allow udev_t self:shm create_shm_perms;
allow udev_t self:sem create_sem_perms;
allow udev_t self:msgq create_msgq_perms;
allow udev_t self:msg { send receive };
allow udev_t self:unix_stream_socket { listen accept };
allow udev_t self:unix_dgram_socket sendto;
allow udev_t self:unix_stream_socket connectto;
allow udev_t self:netlink_kobject_uevent_socket create_socket_perms;
allow udev_t self:rawip_socket create_socket_perms;

allow udev_t udev_exec_t:file write;
can_exec(udev_t, udev_exec_t)

allow udev_t udev_helper_exec_t:dir r_dir_perms;

# read udev config
allow udev_t udev_etc_t:file r_file_perms;

# create udev database in /dev/.udevdb
allow udev_t udev_tbl_t:file create_file_perms;
dev_filetrans_dev_node(udev_t,udev_tbl_t,file)

allow udev_t udev_var_run_t:file create_file_perms;
allow udev_t udev_var_run_t:dir rw_dir_perms;
files_filetrans_pid(udev_t,udev_var_run_t)

kernel_read_system_state(udev_t)
kernel_getattr_core(udev_t)
kernel_use_fd(udev_t)
kernel_read_device_sysctl(udev_t)
kernel_read_hotplug_sysctl(udev_t)
kernel_read_modprobe_sysctl(udev_t)
kernel_read_kernel_sysctl(udev_t)
kernel_rw_hotplug_sysctl(udev_t)
kernel_rw_unix_dgram_socket(udev_t)
kernel_sendto_unix_dgram_socket(udev_t)
kernel_signal(udev_t)

dev_rw_sysfs(udev_t)
dev_manage_dev_nodes(udev_t)
dev_rw_generic_file(udev_t)
dev_delete_generic_file(udev_t)

fs_getattr_all_fs(udev_t)
fs_search_inotifyfs(udev_t)

selinux_get_fs_mount(udev_t)
selinux_validate_context(udev_t)
selinux_compute_access_vector(udev_t)
selinux_compute_create_context(udev_t)
selinux_compute_relabel_context(udev_t)
selinux_compute_user_contexts(udev_t)

auth_use_nsswitch(udev_t)

corecmd_exec_bin(udev_t)
corecmd_exec_sbin(udev_t)
corecmd_exec_shell(udev_t)

domain_exec_all_entry_files(udev_t)
domain_dontaudit_list_all_domains_proc(udev_t)

files_read_etc_runtime_files(udev_t)
files_read_etc_files(udev_t)
files_exec_etc_files(udev_t)
files_dontaudit_search_isid_type_dir(udev_t)
files_getattr_generic_locks(udev_t)
files_search_mnt(udev_t)

init_use_fd(udev_t)
init_read_utmp(udev_t)
init_dontaudit_write_utmp(udev_t)

libs_use_ld_so(udev_t)
libs_use_shared_libs(udev_t)

logging_search_logs(udev_t)
logging_send_syslog_msg(udev_t)

miscfiles_read_localization(udev_t)

mls_file_read_up(udev_t)
mls_file_write_down(udev_t)
mls_file_upgrade(udev_t)
mls_file_downgrade(udev_t)
mls_process_write_down(udev_t)

modutils_domtrans_insmod(udev_t)

seutil_read_config(udev_t)
seutil_read_default_contexts(udev_t)
seutil_read_file_contexts(udev_t)
seutil_domtrans_restorecon(udev_t)

sysnet_domtrans_ifconfig(udev_t)

userdom_use_sysadm_tty(udev_t)
userdom_dontaudit_search_all_users_home(udev_t)

ifdef(`distro_redhat',`
	fs_manage_tmpfs_dirs(udev_t)
	fs_manage_tmpfs_files(udev_t)
	fs_manage_tmpfs_symlinks(udev_t)
	fs_manage_tmpfs_sockets(udev_t)
	fs_manage_tmpfs_blk_dev(udev_t)
	fs_manage_tmpfs_chr_dev(udev_t)
	fs_relabel_tmpfs_blk_dev(udev_t)
	fs_relabel_tmpfs_chr_dev(udev_t)

	# for arping used for static IP addresses on PCMCIA ethernet
	netutils_domtrans(udev_t)
')

ifdef(`targeted_policy',`
	term_dontaudit_use_unallocated_tty(udev_t)
	term_dontaudit_use_generic_pty(udev_t)

	unconfined_domain_template(udev_t)
')

optional_policy(`authlogin',`
	auth_read_pam_console_data(udev_t)
	auth_domtrans_pam_console(udev_t)
')

optional_policy(`consoletype',`
	consoletype_exec(udev_t)
')

optional_policy(`dbus',`
	dbus_system_bus_client_template(udev,udev_t)
')

optional_policy(`hal',`
	hal_dgram_sendto(udev_t)
')

optional_policy(`hotplug',`
	hotplug_read_config(udev_t)
')

optional_policy(`nis',`
	nis_use_ypbind(udev_t)
')

optional_policy(`nscd',`
	nscd_use_socket(udev_t)
')

optional_policy(`sysnetwork',`
	sysnet_domtrans_dhcpc(udev_t)
')

#optional_policy(`xdm',`
#	xdm_read_pid(udev_t)
#')

ifdef(`TODO',`
dontaudit udev_t ttyfile:chr_file unlink;
') dnl endif TODO