# Copyright (C) 2005 Tresys Technology, LLC

policy_module(clock,1.0)

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

type adjtime_t;
files_make_file(adjtime_t)

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

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

allow hwclock_t self:process { sigchld sigkill sigstop signull signal };

# 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)

devices_modify_realtime_clock(hwclock_t)

filesystem_get_persistent_filesystem_attributes(hwclock_t)

terminal_ignore_use_console(hwclock_t)
terminal_use_general_physical_terminal(hwclock_t)
terminal_use_all_private_physical_terminals(hwclock_t)
terminal_use_all_private_pseudoterminals(hwclock_t)

init_use_file_descriptors(hwclock_t)
init_script_use_pseudoterminal(hwclock_t)

domain_use_widely_inheritable_file_descriptors(hwclock_t)

libraries_use_dynamic_loader(hwclock_t)
libraries_use_shared_libraries(hwclock_t)

logging_send_system_log_message(hwclock_t)

miscfiles_read_localization(hwclock_t)

tunable_policy(`targeted_policy', `
terminal_ignore_use_general_physical_terminal(hwclock_t)
terminal_ignore_use_general_pseudoterminal(hwclock_t)
files_ignore_read_rootfs_file(hwclock_t)
')

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

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

optional_policy(`userdomain.te',`
userdomain_ignore_use_all_unprivileged_users_file_descriptors(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 { read write };
')

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)
')

# for when /usr is not mounted
dontaudit hwclock_t file_t:dir search;

') dnl end TODO