policy_module(mpd)

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

## <desc>
##	<p>
##	Determine whether mpd can traverse
##	user home directories.
##	</p>
## </desc>
gen_tunable(mpd_enable_homedirs, false)

## <desc>
##	<p>
##	Determine whether mpd can use
##	cifs file systems.
##	</p>
## </desc>
gen_tunable(mpd_use_cifs, false)

## <desc>
##	<p>
##	Determine whether mpd can use
##	nfs file systems.
##	</p>
## </desc>
gen_tunable(mpd_use_nfs, false)

type mpd_t;
type mpd_exec_t;
init_daemon_domain(mpd_t, mpd_exec_t)
application_executable_file(mpd_exec_t)

type mpd_data_t;
files_type(mpd_data_t)

type mpd_etc_t;
files_config_file(mpd_etc_t)

type mpd_initrc_exec_t;
init_script_file(mpd_initrc_exec_t)

type mpd_log_t;
logging_log_file(mpd_log_t)

type mpd_tmp_t;
files_tmp_file(mpd_tmp_t)

type mpd_tmpfs_t;
files_tmpfs_file(mpd_tmpfs_t)

optional_policy(`
	pulseaudio_tmpfs_content(mpd_tmpfs_t)
')

type mpd_var_lib_t;
files_type(mpd_var_lib_t)

type mpd_user_data_t;
userdom_user_home_content(mpd_user_data_t) # customizable

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

allow mpd_t self:capability { dac_override kill setgid setuid };
allow mpd_t self:process { getsched setsched setrlimit signal signull setcap };
allow mpd_t self:fifo_file rw_fifo_file_perms;
allow mpd_t self:unix_stream_socket { accept connectto listen };
allow mpd_t self:unix_dgram_socket sendto;
allow mpd_t self:tcp_socket { accept listen };
allow mpd_t self:netlink_kobject_uevent_socket create_socket_perms;

allow mpd_t mpd_data_t:dir manage_dir_perms;
allow mpd_t mpd_data_t:file manage_file_perms;
allow mpd_t mpd_data_t:lnk_file read_lnk_file_perms;

read_files_pattern(mpd_t, mpd_etc_t, mpd_etc_t)

allow mpd_t mpd_log_t:dir setattr_dir_perms;
append_files_pattern(mpd_t, mpd_log_t, mpd_log_t)
create_files_pattern(mpd_t, mpd_log_t, mpd_log_t)
setattr_files_pattern(mpd_t, mpd_log_t, mpd_log_t)
logging_log_filetrans(mpd_t, mpd_log_t, { dir file })

manage_dirs_pattern(mpd_t, mpd_tmp_t, mpd_tmp_t)
manage_files_pattern(mpd_t, mpd_tmp_t, mpd_tmp_t)
manage_sock_files_pattern(mpd_t, mpd_tmp_t, mpd_tmp_t)
files_tmp_filetrans(mpd_t, mpd_tmp_t, { dir file sock_file })

allow mpd_t mpd_tmpfs_t:file manage_file_perms;
fs_tmpfs_filetrans(mpd_t, mpd_tmpfs_t, file)

allow mpd_t mpd_user_data_t:dir list_dir_perms;
allow mpd_t mpd_user_data_t:file read_file_perms;
allow mpd_t mpd_user_data_t:lnk_file read_lnk_file_perms;

manage_dirs_pattern(mpd_t, mpd_var_lib_t, mpd_var_lib_t)
manage_files_pattern(mpd_t, mpd_var_lib_t, mpd_var_lib_t)
manage_lnk_files_pattern(mpd_t, mpd_var_lib_t, mpd_var_lib_t)
files_var_lib_filetrans(mpd_t, mpd_var_lib_t, dir)

kernel_getattr_proc(mpd_t)
kernel_read_system_state(mpd_t)
kernel_read_kernel_sysctls(mpd_t)

corecmd_exec_bin(mpd_t)

corenet_all_recvfrom_netlabel(mpd_t)
corenet_tcp_sendrecv_generic_if(mpd_t)
corenet_tcp_sendrecv_generic_node(mpd_t)
corenet_tcp_bind_generic_node(mpd_t)

corenet_sendrecv_mpd_server_packets(mpd_t)
corenet_tcp_bind_mpd_port(mpd_t)

corenet_sendrecv_soundd_server_packets(mpd_t)
corenet_tcp_bind_soundd_port(mpd_t)
corenet_sendrecv_soundd_client_packets(mpd_t)
corenet_tcp_connect_soundd_port(mpd_t)

corenet_sendrecv_http_client_packets(mpd_t)
corenet_tcp_connect_http_port(mpd_t)

corenet_sendrecv_http_cache_client_packets(mpd_t)
corenet_tcp_connect_http_cache_port(mpd_t)

dev_read_urand(mpd_t)
dev_read_sound(mpd_t)
dev_write_sound(mpd_t)
dev_read_sysfs(mpd_t)

files_read_usr_files(mpd_t)

fs_getattr_all_fs(mpd_t)
fs_list_inotifyfs(mpd_t)
fs_rw_anon_inodefs_files(mpd_t)
fs_search_auto_mountpoints(mpd_t)

auth_use_nsswitch(mpd_t)

logging_send_syslog_msg(mpd_t)

miscfiles_read_localization(mpd_t)

tunable_policy(`mpd_enable_homedirs',`
	userdom_search_user_home_dirs(mpd_t)
')

tunable_policy(`mpd_enable_homedirs && use_nfs_home_dirs',`
	fs_read_nfs_files(mpd_t)
	fs_read_nfs_symlinks(mpd_t)
')

tunable_policy(`mpd_enable_homedirs && use_samba_home_dirs',`
	fs_read_cifs_files(mpd_t)
	fs_read_cifs_symlinks(mpd_t)
')

tunable_policy(`mpd_use_cifs',`
	fs_manage_cifs_dirs(mpd_t)
	fs_manage_cifs_files(mpd_t)
	fs_manage_cifs_symlinks(mpd_t)
')

tunable_policy(`mpd_use_nfs',`
	fs_manage_nfs_dirs(mpd_t)
	fs_manage_nfs_files(mpd_t)
	fs_manage_nfs_symlinks(mpd_t)
')

optional_policy(`
	alsa_read_config(mpd_t)
')

optional_policy(`
	dbus_system_bus_client(mpd_t)
')

optional_policy(`
	pulseaudio_client_domain(mpd_t)
	pulseaudio_domtrans(mpd_t)
')

optional_policy(`
	rpc_search_nfs_state_data(mpd_t)
')

optional_policy(`
	xserver_stream_connect(mpd_t)
	xserver_read_xdm_runtime_files(mpd_t)
')