## <summary>Policy for NIS (YP) servers and clients</summary>

########################################
## <summary>
##	Use the ypbind service to access NIS services.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`nis_use_ypbind',`
	gen_require(`
		type var_yp_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
		class file r_file_perms;
		class capability net_bind_service;
		class tcp_socket create_stream_socket_perms;
		class udp_socket create_socket_perms;
	')

	tunable_policy(`allow_ypbind',`
		dontaudit $1 self:capability net_bind_service;

		allow $1 self:tcp_socket { listen accept };
		allow $1 self:tcp_socket { create connect ioctl read getattr write setattr append bind getopt setopt shutdown };
		allow $1 self:udp_socket { create ioctl read getattr write setattr append bind getopt setopt shutdown };

		allow $1 var_yp_t:dir r_dir_perms;
		allow $1 var_yp_t:lnk_file r_file_perms;
		allow $1 var_yp_t:file r_file_perms;

		corenet_tcp_sendrecv_all_if($1)
		corenet_udp_sendrecv_all_if($1)
		corenet_raw_sendrecv_all_if($1)
		corenet_tcp_sendrecv_all_nodes($1)
		corenet_udp_sendrecv_all_nodes($1)
		corenet_raw_sendrecv_all_nodes($1)
		corenet_tcp_bind_all_nodes($1)
		corenet_udp_bind_all_nodes($1)
		corenet_tcp_sendrecv_all_ports($1)
		corenet_udp_sendrecv_all_ports($1)
		corenet_tcp_bind_generic_port($1)
		corenet_udp_bind_generic_port($1)
		corenet_tcp_bind_reserved_port($1)
		corenet_udp_bind_reserved_port($1)
		corenet_dontaudit_tcp_bind_all_reserved_ports($1)
		corenet_dontaudit_udp_bind_all_reserved_ports($1)

	',`
		dontaudit $1 var_yp_t:dir search;
	')
')

########################################
## <summary>
##	Send UDP network traffic to NIS clients.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`nis_list_var_yp',`
	gen_require(`
		type ypbind_t;
		class dir r_dir_perms;
	')

	files_search_var($1)
	allow $1 var_yp_t:dir r_dir_perms;
')

########################################
## <summary>
##	Send UDP network traffic to NIS clients.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`nis_udp_sendto_ypbind',`
	gen_require(`
		type ypbind_t;
		class udp_socket { sendto recvfrom };
	')

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