policy_module(stunnel, 1.10.0)

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

type stunnel_t;
domain_type(stunnel_t)
role system_r types stunnel_t;

type stunnel_exec_t;
domain_entry_file(stunnel_t, stunnel_exec_t)

ifdef(`distro_gentoo',`
	init_daemon_domain(stunnel_t, stunnel_exec_t)
',`
	inetd_tcp_service_domain(stunnel_t, stunnel_exec_t)
')

type stunnel_etc_t;
files_config_file(stunnel_etc_t)

type stunnel_tmp_t;
files_tmp_file(stunnel_tmp_t)

type stunnel_var_run_t;
files_pid_file(stunnel_var_run_t)

########################################
#
# Local policy
#

allow stunnel_t self:capability { setgid setuid sys_chroot };
allow stunnel_t self:process signal_perms;
allow stunnel_t self:fifo_file rw_fifo_file_perms;
allow stunnel_t self:tcp_socket create_stream_socket_perms;
allow stunnel_t self:udp_socket create_socket_perms;

allow stunnel_t stunnel_etc_t:dir list_dir_perms;
allow stunnel_t stunnel_etc_t:file read_file_perms;
allow stunnel_t stunnel_etc_t:lnk_file read_lnk_file_perms;

manage_dirs_pattern(stunnel_t, stunnel_tmp_t, stunnel_tmp_t)
manage_files_pattern(stunnel_t, stunnel_tmp_t, stunnel_tmp_t)
files_tmp_filetrans(stunnel_t, stunnel_tmp_t, { file dir })

manage_dirs_pattern(stunnel_t, stunnel_var_run_t, stunnel_var_run_t)
manage_files_pattern(stunnel_t, stunnel_var_run_t, stunnel_var_run_t)
files_pid_filetrans(stunnel_t, stunnel_var_run_t, { dir file })

kernel_read_kernel_sysctls(stunnel_t)
kernel_read_system_state(stunnel_t)
kernel_read_network_state(stunnel_t)

corecmd_exec_bin(stunnel_t)

corenet_all_recvfrom_netlabel(stunnel_t)
corenet_tcp_sendrecv_generic_if(stunnel_t)
corenet_udp_sendrecv_generic_if(stunnel_t)
corenet_tcp_sendrecv_generic_node(stunnel_t)
corenet_udp_sendrecv_generic_node(stunnel_t)
corenet_tcp_sendrecv_all_ports(stunnel_t)
corenet_udp_sendrecv_all_ports(stunnel_t)
corenet_tcp_bind_generic_node(stunnel_t)
corenet_tcp_connect_all_ports(stunnel_t)

fs_getattr_all_fs(stunnel_t)

auth_use_nsswitch(stunnel_t)

logging_send_syslog_msg(stunnel_t)

miscfiles_read_localization(stunnel_t)

sysnet_read_config(stunnel_t)

ifdef(`distro_gentoo', `
	dontaudit stunnel_t self:capability sys_tty_config;
	allow stunnel_t self:udp_socket create_socket_perms;

	dev_read_sysfs(stunnel_t)

	fs_search_auto_mountpoints(stunnel_t)

	domain_use_interactive_fds(stunnel_t)

	userdom_dontaudit_use_unpriv_user_fds(stunnel_t)
	userdom_dontaudit_search_user_home_dirs(stunnel_t)

	optional_policy(`
		daemontools_service_domain(stunnel_t, stunnel_exec_t)
	')

	optional_policy(`
		seutil_sigchld_newrole(stunnel_t)
	')

	optional_policy(`
		udev_read_db(stunnel_t)
	')
',`
	allow stunnel_t self:netlink_tcpdiag_socket r_netlink_socket_perms;

	dev_read_urand(stunnel_t)

	files_read_etc_runtime_files(stunnel_t)
	files_search_home(stunnel_t)

	optional_policy(`
		kerberos_use(stunnel_t)
	')
')

# hack since this port has no interfaces since it doesnt
# have net_contexts
gen_require(`
	type stunnel_port_t;
')

allow stunnel_t stunnel_port_t:tcp_socket name_bind;