selinux-policy/policy/modules/services/courier.if

## <summary>Courier IMAP and POP3 email servers</summary>

########################################
## <summary>
##	Template for creating courier server processes.
## </summary>
## <param name="prefix">
##	<summary>
##	Prefix name of the server process.
##	</summary>
## </param>
#
template(`courier_domain_template',`

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

	type courier_$1_t;
	type courier_$1_exec_t;
	init_daemon_domain(courier_$1_t, courier_$1_exec_t)

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

	allow courier_$1_t self:capability dac_override;
	dontaudit courier_$1_t self:capability sys_tty_config;
	allow courier_$1_t self:process { setpgid signal_perms };
	allow courier_$1_t self:fifo_file { read write getattr };
	allow courier_$1_t self:tcp_socket create_stream_socket_perms;
	allow courier_$1_t self:udp_socket create_socket_perms;

	can_exec(courier_$1_t, courier_$1_exec_t)

	read_files_pattern(courier_$1_t,courier_etc_t,courier_etc_t)
	allow courier_$1_t courier_etc_t:dir list_dir_perms;

	manage_files_pattern(courier_$1_t, courier_var_run_t, courier_var_run_t)
	manage_lnk_files_pattern(courier_$1_t, courier_var_run_t, courier_var_run_t)
	manage_sock_files_pattern(courier_$1_t, courier_var_run_t, courier_var_run_t)
	files_search_pids(courier_$1_t)

	kernel_read_system_state(courier_$1_t)
	kernel_read_kernel_sysctls(courier_$1_t)

	corecmd_exec_bin(courier_$1_t)

	corenet_all_recvfrom_unlabeled(courier_$1_t)
	corenet_all_recvfrom_netlabel(courier_$1_t)
	corenet_tcp_sendrecv_generic_if(courier_$1_t)
	corenet_udp_sendrecv_generic_if(courier_$1_t)
	corenet_tcp_sendrecv_generic_node(courier_$1_t)
	corenet_udp_sendrecv_generic_node(courier_$1_t)
	corenet_tcp_sendrecv_all_ports(courier_$1_t)
	corenet_udp_sendrecv_all_ports(courier_$1_t)

	dev_read_sysfs(courier_$1_t)

	domain_use_interactive_fds(courier_$1_t)

	files_read_etc_files(courier_$1_t)
	files_read_etc_runtime_files(courier_$1_t)
	files_read_usr_files(courier_$1_t)

	fs_getattr_xattr_fs(courier_$1_t)
	fs_search_auto_mountpoints(courier_$1_t)

	logging_send_syslog_msg(courier_$1_t)

	sysnet_read_config(courier_$1_t)

	userdom_dontaudit_use_unpriv_user_fds(courier_$1_t)

	optional_policy(`
		seutil_sigchld_newrole(courier_$1_t)
	')

	optional_policy(`
		udev_read_db(courier_$1_t)
	')
')

########################################
## <summary>
##	Execute the courier authentication daemon with
##	a domain transition.
## </summary>
## <param name="prefix">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`courier_domtrans_authdaemon',`
	gen_require(`
		type courier_authdaemon_t, courier_authdaemon_exec_t;
	')

	domtrans_pattern($1, courier_authdaemon_exec_t, courier_authdaemon_t)
')

########################################
## <summary>
##	Execute the courier POP3 and IMAP server with
##	a domain transition.
## </summary>
## <param name="prefix">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`courier_domtrans_pop',`
	gen_require(`
		type courier_pop_t, courier_pop_exec_t;
	')

	domtrans_pattern($1, courier_pop_exec_t, courier_pop_t)
')

########################################
## <summary>
##	Read courier config files
## </summary>
## <param name="prefix">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`courier_read_config',`
	gen_require(`
		type courier_etc_t;
	')

	read_files_pattern($1, courier_etc_t, courier_etc_t)
')

########################################
## <summary>
##	Create, read, write, and delete courier
##	spool directories.
## </summary>
## <param name="prefix">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`courier_manage_spool_dirs',`
	gen_require(`
		type courier_spool_t;
	')

	manage_dirs_pattern($1, courier_spool_t, courier_spool_t)
')

########################################
## <summary>
##	Create, read, write, and delete courier
##	spool files.
## </summary>
## <param name="prefix">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`courier_manage_spool_files',`
	gen_require(`
		type courier_spool_t;
	')

	manage_files_pattern($1, courier_spool_t, courier_spool_t)
')

########################################
## <summary>
##	Read and write to courier spool pipes.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`courier_rw_spool_pipes',`
	gen_require(`
		type courier_spool_t;
	')

	allow $1 courier_spool_t:fifo_file rw_fifo_file_perms;
')