#DESC Hwclock - Hardware clock manager
#
# Author:  David A. Wheeler <dwheeler@ida.org>
#          Russell Coker <russell@coker.com.au>
# X-Debian-Packages: util-linux
#

#################################
#
# Rules for the hwclock_t domain.
# This domain moves time information between the "hardware clock"
# (which runs when the system is off) and the "system clock",
# and it stores adjustment values in /etc/adjtime so that errors in the
# hardware clock are corrected.
# Note that any errors from this domain are NOT recorded by the system logger,
# because the system logger isnt running when this domain is active.
#
daemon_base_domain(hwclock)
role sysadm_r types hwclock_t;
domain_auto_trans(sysadm_t, hwclock_exec_t, hwclock_t)
type adjtime_t, file_type, sysadmfile;

allow hwclock_t fs_t:filesystem getattr;

read_locale(hwclock_t)

# 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 };

# Allow hwclock to set the hardware clock.
allow hwclock_t clock_device_t:devfile_class_set { setattr rw_file_perms };

# Allow hwclock to store & retrieve correction factors.
allow hwclock_t adjtime_t:file { setattr rw_file_perms };

# Read and write console and ttys.
allow hwclock_t tty_device_t:chr_file rw_file_perms;
allow hwclock_t ttyfile:chr_file rw_file_perms;
allow hwclock_t ptyfile:chr_file rw_file_perms;
ifdef(`gnome-pty-helper.te', `allow hwclock_t sysadm_gph_t:fd use;')

read_locale(hwclock_t)

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