policy_module(rsync, 1.19.0)

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

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

## <desc>
##	<p>
##	Determine whether rsync can
##	use fuse file systems.
##	</p>
## </desc>
gen_tunable(rsync_use_fusefs, false)

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

## <desc>
##	<p>
##	Determine whether rsync can
##	run as a client
##	</p>
## </desc>
gen_tunable(rsync_client, false)

## <desc>
##	<p>
##	Determine whether rsync can
##	export all content read only.
##	</p>
## </desc>
gen_tunable(rsync_export_all_ro, false)

## <desc>
##	<p>
##	Determine whether rsync can modify
##	public files used for public file
##	transfer services. Directories/Files must
##	be labeled public_content_rw_t.
##	</p>
## </desc>
gen_tunable(allow_rsync_anon_write, false)

attribute_role rsync_roles;

type rsync_t;
type rsync_exec_t;
init_daemon_domain(rsync_t, rsync_exec_t)
application_domain(rsync_t, rsync_exec_t)
role rsync_roles types rsync_t;

type rsync_etc_t;
files_config_file(rsync_etc_t)

type rsync_data_t; # customizable
files_type(rsync_data_t)

type rsync_log_t;
logging_log_file(rsync_log_t)

type rsync_runtime_t alias rsync_var_run_t;
files_runtime_file(rsync_runtime_t)

type rsync_tmp_t;
files_tmp_file(rsync_tmp_t)

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

allow rsync_t self:capability { chown dac_override dac_read_search fowner fsetid setgid setuid sys_chroot };
allow rsync_t self:process signal_perms;
allow rsync_t self:fifo_file rw_fifo_file_perms;
allow rsync_t self:tcp_socket { accept listen };

allow rsync_t rsync_etc_t:file read_file_perms;

allow rsync_t rsync_data_t:dir list_dir_perms;
allow rsync_t rsync_data_t:file read_file_perms;
allow rsync_t rsync_data_t:lnk_file read_lnk_file_perms;

allow rsync_t rsync_log_t:file { append_file_perms create_file_perms setattr_file_perms };
logging_log_filetrans(rsync_t, rsync_log_t, file)

manage_dirs_pattern(rsync_t, rsync_tmp_t, rsync_tmp_t)
manage_files_pattern(rsync_t, rsync_tmp_t, rsync_tmp_t)
files_tmp_filetrans(rsync_t, rsync_tmp_t, { file dir })

manage_files_pattern(rsync_t, rsync_runtime_t, rsync_runtime_t)
files_runtime_filetrans(rsync_t, rsync_runtime_t, file)

kernel_read_kernel_sysctls(rsync_t)
kernel_read_system_state(rsync_t)
kernel_read_network_state(rsync_t)

corenet_all_recvfrom_netlabel(rsync_t)
corenet_tcp_sendrecv_generic_if(rsync_t)
corenet_tcp_sendrecv_generic_node(rsync_t)
corenet_tcp_bind_generic_node(rsync_t)

corenet_sendrecv_rsync_server_packets(rsync_t)
corenet_tcp_bind_rsync_port(rsync_t)

dev_read_urand(rsync_t)

fs_getattr_all_fs(rsync_t)
fs_search_auto_mountpoints(rsync_t)

files_getattr_all_pipes(rsync_t)
files_getattr_all_sockets(rsync_t)
files_search_home(rsync_t)

auth_can_read_shadow_passwords(rsync_t)
auth_use_nsswitch(rsync_t)

logging_send_syslog_msg(rsync_t)

miscfiles_read_localization(rsync_t)
miscfiles_read_public_files(rsync_t)

tunable_policy(`allow_rsync_anon_write',`
	miscfiles_manage_public_files(rsync_t)
')

tunable_policy(`rsync_client',`
	corenet_sendrecv_rsync_client_packets(rsync_t)
	corenet_tcp_connect_rsync_port(rsync_t)

	corenet_sendrecv_ssh_client_packets(rsync_t)
	corenet_tcp_connect_ssh_port(rsync_t)

	manage_dirs_pattern(rsync_t, rsync_data_t, rsync_data_t)
	manage_files_pattern(rsync_t, rsync_data_t, rsync_data_t)
	manage_lnk_files_pattern(rsync_t, rsync_data_t, rsync_data_t)
')

tunable_policy(`rsync_export_all_ro',`
	fs_read_noxattr_fs_files(rsync_t)
	fs_read_nfs_files(rsync_t)
	fs_read_fusefs_files(rsync_t)
	fs_read_cifs_files(rsync_t)
	files_list_non_auth_dirs(rsync_t)
	files_read_non_auth_files(rsync_t)
	files_read_non_auth_symlinks(rsync_t)
	auth_tunable_read_shadow(rsync_t)
')

tunable_policy(`rsync_use_cifs',`
	fs_list_cifs(rsync_t)
	fs_read_cifs_files(rsync_t)
	fs_read_cifs_symlinks(rsync_t)
')

tunable_policy(`rsync_use_fusefs',`
	fs_search_fusefs(rsync_t)
	fs_read_fusefs_files(rsync_t)
	fs_read_fusefs_symlinks(rsync_t)
')

tunable_policy(`rsync_use_nfs',`
	fs_list_nfs(rsync_t)
	fs_read_nfs_files(rsync_t)
	fs_read_nfs_symlinks(rsync_t)
')

optional_policy(`
	tunable_policy(`rsync_client',`
		ssh_exec(rsync_t)
	')
')

optional_policy(`
	daemontools_service_domain(rsync_t, rsync_exec_t)
')

optional_policy(`
	kerberos_use(rsync_t)
')

optional_policy(`
	inetd_service_domain(rsync_t, rsync_exec_t)
')