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

policy_module(clock,1.0)

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

type adjtime_t;
files_file_type(adjtime_t)

type hwclock_t;
type hwclock_exec_t;
init_system_domain(hwclock_t,hwclock_exec_t)
role system_r types hwclock_t;

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

allow hwclock_t self:process signal_perms;

# Give hwclock the capabilities it requires.  dac_override is a surprise,
# but hwclock does require it.
allow hwclock_t self:capability { dac_override sys_rawio sys_time sys_tty_config };
dontaudit hwclock_t self:capability sys_tty_config;

# Allow hwclock to store & retrieve correction factors.
allow hwclock_t adjtime_t:file { setattr ioctl read getattr lock write append };

kernel_read_kernel_sysctl(hwclock_t)
kernel_read_hardware_state(hwclock_t)

dev_rw_realtime_clock(hwclock_t)

fs_getattr_xattr_fs(hwclock_t)

term_dontaudit_use_console(hwclock_t)
term_use_unallocated_tty(hwclock_t)
term_use_all_user_ttys(hwclock_t)
term_use_all_user_ptys(hwclock_t)

init_use_fd(hwclock_t)
init_use_script_pty(hwclock_t)

domain_use_wide_inherit_fd(hwclock_t)

files_read_generic_etc_files_directory(hwclock_t)
# for when /usr is not mounted:
files_dontaudit_search_isid_type_dir(hwclock_t)

libs_use_ld_so(hwclock_t)
libs_use_shared_libs(hwclock_t)

logging_send_syslog_msg(hwclock_t)

miscfiles_read_localization(hwclock_t)

ifdef(`targeted_policy', `
	term_dontaudit_use_unallocated_tty(hwclock_t)
	term_dontaudit_use_generic_pty(hwclock_t)
	files_dontaudit_read_root_file(hwclock_t)
')

optional_policy(`selinux.te',`
	selinux_newrole_sigchld(hwclock_t)
')

optional_policy(`udev.te', `
	udev_read_db(hwclock_t)
')

optional_policy(`userdomain.te',`
	userdom_dontaudit_use_unpriv_user_fd(hwclock_t)
')

ifdef(`TODO',`

allow hwclock_t proc_t:dir r_dir_perms;
allow hwclock_t proc_t:lnk_file read;

optional_policy(`rhgb.te', `
allow hwclock_t rhgb_t:process sigchld;
allow hwclock_t rhgb_t:fd use;
allow hwclock_t rhgb_t:fifo_file rw_file_perms;
')

allow hwclock_t autofs_t:dir { search getattr };

optional_policy(`gnome-pty-helper.te', `allow hwclock_t sysadm_gph_t:fd use;')

optional_policy(`apmd.te', `
domain_auto_trans(apmd_t, hwclock_exec_t, hwclock_t)
')

') dnl end TODO