selinux-policy/refpolicy/policy/modules/services/rpc.if

## <summary>Remote Procedure Call Daemon for managment of network based process communication</summary>

#######################################
## <summary>
##	The template to define a rpc domain.
## </summary>
## <desc>
##	<p>
##	This template creates a domain to be used for
##	a new rpc daemon.
##	</p>
## </desc>
## <param name="userdomain_prefix">
##	The type of daemon to be used.
## </param>
#
template(`rpc_domain_template', `
	########################################
	#
	# Declarations
	#

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

	####################################
	#
	# Local Policy
	#

	dontaudit $1_t self:capability { net_admin sys_tty_config };
	allow $1_t self:capability net_bind_service;
	allow $1_t self:process signal_perms;
	allow $1_t self:unix_dgram_socket create_socket_perms;
	allow $1_t self:unix_stream_socket create_stream_socket_perms;
	allow $1_t self:netlink_route_socket r_netlink_socket_perms;
	allow $1_t self:tcp_socket create_stream_socket_perms;
	allow $1_t self:udp_socket create_socket_perms;

	allow $1_t var_lib_nfs_t:dir create_dir_perms;
	allow $1_t var_lib_nfs_t:file create_file_perms;

	kernel_list_proc($1_t)
	kernel_read_proc_symlinks($1_t)
	kernel_read_kernel_sysctl($1_t)
	# bind to arbitary unused ports
	kernel_rw_rpc_sysctl($1_t)

	dev_read_sysfs($1_t)

	corenet_tcp_sendrecv_all_if($1_t)
	corenet_udp_sendrecv_all_if($1_t)
	corenet_raw_sendrecv_all_if($1_t)
	corenet_tcp_sendrecv_all_nodes($1_t)
	corenet_udp_sendrecv_all_nodes($1_t)
	corenet_raw_sendrecv_all_nodes($1_t)
	corenet_tcp_sendrecv_all_ports($1_t)
	corenet_udp_sendrecv_all_ports($1_t)
	corenet_tcp_bind_all_nodes($1_t)
	corenet_udp_bind_all_nodes($1_t)
	corenet_tcp_bind_reserved_port($1_t)
	corenet_tcp_bind_reserved_port($1_t)
	corenet_tcp_connect_all_ports($1_t)
	# do not log when it tries to bind to a port belonging to another domain
	corenet_dontaudit_tcp_bind_all_reserved_ports($1_t)
	corenet_dontaudit_udp_bind_all_reserved_ports($1_t)
	# bind to arbitary unused ports
	corenet_tcp_bind_generic_port($1_t)

	fs_search_auto_mountpoints($1_t)

	term_dontaudit_use_console($1_t)

	files_read_etc_files($1_t)
	files_read_etc_runtime_files($1_t)
	files_search_var($1_t)
	files_search_var_lib_dir($1_t)

	init_use_fd($1_t)
	init_use_script_pty($1_t)

	libs_use_ld_so($1_t)
	libs_use_shared_libs($1_t)

	logging_send_syslog_msg($1_t)

	miscfiles_read_localization($1_t)

	sysnet_read_config($1_t)

	userdom_dontaudit_use_unpriv_user_fd($1_t)

	ifdef(`targeted_policy',`
		term_dontaudit_use_unallocated_tty($1_t)
		term_dontaudit_use_generic_pty($1_t)
		files_dontaudit_read_root_file($1_t)
	')

	optional_policy(`mount',`
		mount_send_nfs_client_request($1_t)
	')

	optional_policy(`nis',`
		nis_use_ypbind($1_t)
	')

	optional_policy(`selinuxutil',`
		seutil_sigchld_newrole($1_t)
	')

	optional_policy(`udev',`
		udev_read_db($1_t)
	')
')

########################################
## <summary>
##      Send UDP network traffic to rpc and recieve UDP traffic from rpc.
## </summary>
## <param name="domain">
##      The type of the process performing this action.
## </param>
#
interface(`rpc_udp_sendto',`
	gen_require(`
		type rpc_t;
	')

	allow $1 rpc_t:udp_socket sendto;
	allow rpc_t $1:udp_socket recvfrom;
')

########################################
## <summary>
##      Allow read access to exports.
## </summary>
## <param name="domain">
##      The type of the process performing this action.
## </param>
#
interface(`rpc_read_exports',`
	gen_require(`
		type exports_t;
	')

	allow $1 exports_t:file r_file_perms;
')

########################################
## <summary>
##      Allow write access to exports.
## </summary>
## <param name="domain">
##      The type of the process performing this action.
## </param>
#
interface(`rpc_write_exports',`
	gen_require(`
		type exports_t;
	')

	allow $1 exports_t:file write;
')

########################################
## <summary>
##      Execute domain in nfsd domain.
## </summary>
## <param name="domain">
##      The type of the process performing this action.
## </param>
#
interface(`rpc_domtrans_nfsd',`
	gen_require(`
		type nfsd_t, nfsd_exec_t;
	')

	domain_auto_trans($1,nfsd_exec_t,nfsd_t)

	allow $1 nfsd_t:fd use;
	allow nfsd_t $1:fd use;
	allow nfsd_t $1:fifo_file rw_file_perms;
	allow nfsd_t $1:process sigchld;
')

########################################
## <summary>
##      Allow domain to create read and write NFS directories.
## </summary>
## <param name="domain">
##      Domain allowed access.
## </param>
#
interface(`rpc_manage_nfs_rw_content',`
	gen_require(`
		type nfsd_rw_t;	
	')

	allow $1 nfsd_rw_t:dir manage_dir_perms;
	allow $1 nfsd_rw_t:file manage_file_perms;
	allow $1 nfsd_rw_t:lnk_file create_lnk_perms;
')

########################################
## <summary>
##      Allow domain to create read and write NFS directories.
## </summary>
## <param name="domain">
##      Domain allowed access.
## </param>
#
interface(`rpc_manage_nfs_ro_content',`
	gen_require(`
		type nfsd_ro_t;	
	')

	allow $1 nfsd_ro_t:dir manage_dir_perms;
	allow $1 nfsd_ro_t:file manage_file_perms;
	allow $1 nfsd_ro_t:lnk_file create_lnk_perms;
')

########################################
## <summary>
##      Allow domain to read and write to an NFS UDP socket.
## </summary>
## <param name="domain">
##      Domain allowed access.
## </param>
#
interface(`rpc_udp_rw_nfs_sockets',`
	gen_require(`
		type nfsd_t;	
	')

	allow $1 nfsd_t:udp_socket rw_socket_perms;

')

########################################
## <summary>
##      Allow NFS to send UDP network traffic
##      the specified domain and recieve from it.
## </summary>
## <param name="domain">
##      The type of the receiving domain.
## </param>
#
interface(`rpc_udp_sendto_nfs',`
	gen_require(`
		type nfsd_t;
	')

	allow nfsd_t $1:udp_socket sendto;
	allow $1 nfsd_t:udp_socket recvfrom;
')