selinux-policy/policy/modules/system/clock.if

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

########################################
## <summary>
##	Execute hwclock in the clock domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`clock_domtrans',`
	gen_require(`
		type hwclock_t, hwclock_exec_t;
	')

	domtrans_pattern($1, hwclock_exec_t, hwclock_t)
')

########################################
## <summary>
##	Execute hwclock in the clock domain, and
##	allow the specified role the hwclock domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`clock_run',`
	gen_require(`
		type hwclock_t;
	')

	clock_domtrans($1)
	role $2 types hwclock_t;
')

########################################
## <summary>
## 	Execute hwclock in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
## 	Domain allowed access.
##	</summary>
## </param>
#
interface(`clock_exec',`
	gen_require(`
		type hwclock_exec_t;
	')

	can_exec($1, hwclock_exec_t)
')

########################################
## <summary>
##	Do not audit attempts to write clock drift adjustments.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`clock_dontaudit_write_adjtime',`
	gen_require(`
		type adjtime_t;
	')

	dontaudit $1 adjtime_t:file write;
')

########################################
## <summary>
##	Read and write clock drift adjustments.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`clock_rw_adjtime',`
	gen_require(`
		type adjtime_t;
	')

	allow $1 adjtime_t:file rw_file_perms;
	files_list_etc($1)
')