## <summary>Network time protocol daemon</summary>

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

## <summary>

##	NTP stub interface.  No access allowed.

## </summary>

## <param name="domain" unused="true">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ntp_stub',`

	gen_require(`

		type ntpd_t;

	')

')

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

## <summary>

##	Execute ntp server in the ntpd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`ntp_domtrans',`

	gen_require(`

		type ntpd_t, ntpd_exec_t;

	')

	corecmd_search_bin($1)

	domtrans_pattern($1, ntpd_exec_t, ntpd_t)

')

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

## <summary>

##	Execute ntp in the ntp domain, and

##	allow the specified role the ntp domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	Role allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`ntp_run',`

	gen_require(`

		type ntpd_t;

	')

	ntp_domtrans($1)

	role $2 types ntpd_t;

')

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

## <summary>

##	Execute ntp server in the ntpd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`ntp_domtrans_ntpdate',`

	gen_require(`

		type ntpd_t, ntpdate_exec_t;

	')

	corecmd_search_bin($1)

	domtrans_pattern($1, ntpdate_exec_t, ntpd_t)

')

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

## <summary>

##	Execute ntp server in the ntpd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`ntp_initrc_domtrans',`

	gen_require(`

		type ntpd_initrc_exec_t;

	')

	init_labeled_script_domtrans($1, ntpd_initrc_exec_t)

')

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

## <summary>

##      Allow domain to read ntpd systemd unit files.

## </summary>

## <param name="domain">

##      <summary>

##      Domain allowed access.

##      </summary>

## </param>

#

interface(`ntp_read_unit_file',`

        gen_require(`

                type ntpd_unit_file_t;

        ')

        files_search_var_lib($1)

        allow $1 ntpd_unit_file_t:file read_file_perms;

')

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

## <summary>

##	Execute ntpd server in the ntpd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`ntp_systemctl',`

	gen_require(`

		type ntpd_unit_file_t;

		type ntpd_t;

	')

	systemd_exec_systemctl($1)

	allow $1 ntpd_unit_file_t:file read_file_perms;

	allow $1 ntpd_unit_file_t:service manage_service_perms;

	ps_process_pattern($1, ntpd_t)

')

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

## <summary>

##	Read and write ntpd shared memory.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ntp_rw_shm',`

	gen_require(`

		type ntpd_t, ntpd_tmpfs_t;

	')

	allow $1 ntpd_t:shm rw_shm_perms;

	list_dirs_pattern($1, ntpd_tmpfs_t, ntpd_tmpfs_t)

	rw_files_pattern($1, ntpd_tmpfs_t, ntpd_tmpfs_t)

	read_lnk_files_pattern($1, ntpd_tmpfs_t, ntpd_tmpfs_t)

	fs_search_tmpfs($1)

')

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

## <summary>

##	Allow the domain to read ntpd state files in /proc.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ntp_read_state',`

	gen_require(`

		type ntpd_t;

	')

	kernel_search_proc($1)

	ps_process_pattern($1, ntpd_t)

')

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

## <summary>

##	All of the rules required to administrate

##	an ntp environment

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	The role to be allowed to manage the ntp domain.

##	</summary>

## </param>

## <rolecap/>

#

interface(`ntp_admin',`

	gen_require(`

		type ntpd_t, ntpd_tmp_t, ntpd_log_t;

		type ntpd_key_t, ntpd_var_run_t, ntpd_initrc_exec_t;

		type ntpd_unit_file_t;

	')

	allow $1 ntpd_t:process signal_perms;

	ps_process_pattern($1, ntpd_t)

	tunable_policy(`deny_ptrace',`',`

		allow $1 ntpd_t:process ptrace;

	')

	init_labeled_script_domtrans($1, ntpd_initrc_exec_t)

	domain_system_change_exemption($1)

	role_transition $2 ntpd_initrc_exec_t system_r;

	allow $2 system_r;

	admin_pattern($1, ntpd_key_t)

	logging_list_logs($1)

	admin_pattern($1, ntpd_log_t)

	files_list_tmp($1)

	admin_pattern($1, ntpd_tmp_t)

	files_list_pids($1)

	admin_pattern($1, ntpd_var_run_t)

	ntp_systemctl($1)

	admin_pattern($1, ntpd_unit_file_t)

	allow $1 ntpd_unit_file_t:service all_service_perms;

')