policy_module(nbdkit, 1.0.0)

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

gen_require(`
    type unconfined_t;
')

type nbdkit_t;
type nbdkit_exec_t;
application_domain(nbdkit_t, nbdkit_exec_t)
mcs_constrained(nbdkit_t)
role system_r types nbdkit_t;

type nbdkit_home_t;
userdom_user_home_content(nbdkit_home_t)

type nbdkit_tmp_t;
files_tmp_file(nbdkit_tmp_t)

type nbdkit_unit_file_t;
systemd_unit_file(nbdkit_unit_file_t)

permissive nbdkit_t;

########################################
#
# nbdkit local policy
#
allow nbdkit_t self:capability { setgid setuid };
allow nbdkit_t self:fifo_file rw_fifo_file_perms;
allow nbdkit_t self:netlink_route_socket rw_netlink_socket_perms;
allow nbdkit_t self:process { fork setsockcreate signal_perms };
allow nbdkit_t self:tcp_socket create_stream_socket_perms;
allow nbdkit_t self:udp_socket create_socket_perms;

manage_dirs_pattern(nbdkit_t, nbdkit_tmp_t, nbdkit_tmp_t)
manage_files_pattern(nbdkit_t, nbdkit_tmp_t, nbdkit_tmp_t) 
userdom_user_tmp_filetrans(nbdkit_t, nbdkit_tmp_t, { dir file })

manage_dirs_pattern(nbdkit_t, nbdkit_home_t, nbdkit_home_t)
manage_files_pattern(nbdkit_t, nbdkit_home_t, nbdkit_home_t) 
userdom_user_home_dir_filetrans(nbdkit_t, nbdkit_home_t, { dir file })

corenet_tcp_connect_http_port(nbdkit_t)
corenet_tcp_connect_ssh_port(nbdkit_t)
corenet_tcp_connect_tftp_port(nbdkit_t)
corenet_tcp_bind_generic_port(nbdkit_t)
corenet_tcp_bind_generic_node(nbdkit_t)

domain_use_interactive_fds(nbdkit_t)

files_read_etc_files(nbdkit_t)

init_abstract_socket_activation(nbdkit_t)
init_ioctl_stream_sockets(nbdkit_t)
init_rw_stream_sockets(nbdkit_t)

optional_policy(`
	auth_use_nsswitch(nbdkit_t)
')

optional_policy(`
	logging_send_syslog_msg(nbdkit_t)
')

optional_policy(`
	miscfiles_read_localization(nbdkit_t)
	miscfiles_read_generic_certs(nbdkit_t)
')

optional_policy(`
	sysnet_dns_name_resolve(nbdkit_t)
	sysnet_read_config(nbdkit_t)
')

optional_policy(`
	userdom_read_user_home_content_files(nbdkit_t)
	userdom_use_inherited_user_ptys(nbdkit_t)
')

optional_policy(`
	virt_create_svirt_image_sock_files(nbdkit_t)
	virt_read_qemu_pid_files(nbdkit_t)
	virtlogd_rw_pipes(nbdkit_t)
	virt_rw_svirt_image(nbdkit_t)
	virt_rw_svirt_image_dirs(nbdkit_t)
	virt_search_lib(nbdkit_t)
	virt_stream_connect_svirt(nbdkit_t)
')


# FIXME: It would be nice to allow libvirt to transition nbdkit_exec_t to 
# nbdkit_t when libvirtd was started manually from the commandline (i.e. in 
# unconfined_t), but we don't want this transition to happen automatically 
# when starting directly from the shell. I'm not sure how to achieve this...  
#nbdkit_domtrans(unconfined_t, nbdkit_exec_t, nbdkit_t)