## <module name="clock" layer="system">

## <summary>Policy for reading and setting the hardware clock.</summary>

########################################

## <interface name="clock_transition">

##	<description>

##		Execute hwclock in the clock domain.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

##	<infoflow type="write" weight="10"/>

## </interface>

#

define(`clock_transition',`

	requires_block_template(`$0'_depend)

	domain_auto_trans($1,hwclock_exec_t,hwclock_t)

	allow $1 hwclock_t:fd use;

	allow hwclock_t $1:fd use;

	allow hwclock_t $1:fifo_file rw_file_perms;

	allow hwclock_t $1:process sigchld;

')

define(`clock_transition_depend',`

	type hwclock_t, hwclock_exec_t;

	class file { getattr read execute };

	class process { transition noatsecure siginh rlimitinh sigchld };

	class fd use;

	class fifo_file rw_file_perms;

')

########################################

## <interface name="clock_transition_add_role_use_terminal">

##	<description>

##		Execute hwclock in the clock domain, and

##		allow the specified role the hwclock domain.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

##	<parameter name="role">

##		The role to be allowed the clock domain.

##	</parameter>

##	<parameter name="terminal">

##		The type of the terminal allow the clock domain to use.

##	</parameter>

##	<infoflow type="write" weight="10"/>

## </interface>

#

define(`clock_transition_add_role_use_terminal',`

	requires_block_template(`$0'_depend)

	clock_transition($1)

	role $2 types hwclock_t;

	allow hwclock_t $3:chr_file { getattr read write ioctl };

')

define(`clock_transition_add_role_use_terminal_depend',`

	type hwclock_t;

	class chr_file { getattr read write ioctl };

')

########################################

## <interface name="clock_execute">

##     <description>

##             Execute hwclock

##     </description>

##     <parameter name="domain">

##             The type of the process performing this action.

##     </parameter>

##     <infoflow type="execute" weight="10"/>

## </interface>

#

define(`clock_execute',`

	requires_block_template(`$0'_depend)

	can_exec($1,hwclock_exec_t)

')

define(`clock_execute_depend',`

	type hwclock_exec_t;

	class file { getattr read execute execute_no_trans };

')

########################################

## <interface name="clock_modify_drift_records">

##     <description>

##             Allow executing domain to modify clock drift

##     </description>

##     <parameter name="domain">

##             The type of the process performing this action.

##     </parameter>

##     <infoflow type="write" weight="10"/>

## </interface>

#

define(`clock_modify_drift_records',`

	requires_block_template(`$0'_depend)

	allow $1 adjtime_t:file rw_file_perms;

	files_read_general_system_config_directory($1)

')

define(`clock_modify_drift_records_depend',`

	type adjtime_t;

	class file rw_file_perms;

')

## </module>