## <summary>GNU terminal multiplexer</summary>

#######################################

## <summary>

##	The per user domain template for the screen module.

## </summary>

## <desc>

##	

##	This template creates a derived domains which are used

##	for screen sessions.

##	

##	

##	This template is invoked automatically for each user, and

##	generally does not need to be invoked directly

##	by policy writers.

##	

## </desc>

## <param name="userdomain_prefix">

##	<summary>

##	The prefix of the user domain (e.g., user

##	is the prefix for user_t).

##	</summary>

## </param>

## <param name="user_domain">

##	<summary>

##	The type of the user domain.

##	</summary>

## </param>

## <param name="user_role">

##	<summary>

##	The role associated with the user domain.

##	</summary>

## </param>

#

template(`screen_per_userdomain_template',`

	gen_require(`

		type screen_dir_t, screen_exec_t;

	')

	########################################

	#

	# Declarations

	#

	type $1_screen_t;

	domain_type($1_screen_t)

	domain_entry_file($1_screen_t,screen_exec_t)

	domain_interactive_fd($1_screen_t)

	role $3 types $1_screen_t;

	type $1_screen_tmp_t;

	files_tmp_file($1_screen_tmp_t)

	type $1_screen_ro_home_t;

	files_type($1_screen_ro_home_t)

	type $1_screen_var_run_t;;

	files_pid_file($1_screen_var_run_t)

	########################################

	#

	# Local policy

	#

	allow $1_screen_t self:capability { setuid setgid fsetid };

	allow $1_screen_t self:process signal_perms;

	allow $1_screen_t self:tcp_socket create_stream_socket_perms;

	allow $1_screen_t self:udp_socket create_socket_perms;

	# Internal screen networking

	allow $1_screen_t self:fd use;

	allow $1_screen_t self:unix_stream_socket create_socket_perms;

	allow $1_screen_t self:unix_dgram_socket create_socket_perms;

	allow $1_screen_t $1_screen_tmp_t:dir create_dir_perms;

	allow $1_screen_t $1_screen_tmp_t:file create_file_perms;

	allow $1_screen_t $1_screen_tmp_t:fifo_file create_file_perms;

	files_tmp_filetrans($1_screen_t, $1_screen_tmp_t, { file dir })

	# Create fifo

	allow $1_screen_t screen_dir_t:dir rw_dir_perms;

	allow $1_screen_t screen_dir_t:dir create_dir_perms;

	allow $1_screen_t $1_screen_var_run_t:fifo_file create_file_perms;

	type_transition $1_screen_t screen_dir_t:fifo_file $1_screen_var_run_t;

	files_pid_filetrans($1_screen_t,screen_dir_t,dir)

	allow $1_screen_t $1_screen_ro_home_t:dir r_dir_perms;

	allow $1_screen_t $1_screen_ro_home_t:file r_file_perms;

	allow $1_screen_t $1_screen_ro_home_t:lnk_file { read getattr };

	domain_auto_trans($2, screen_exec_t, $1_screen_t)

	allow $2 $1_screen_t:process signal;

	allow $1_screen_t $2:process { signal sigchld };

	allow $1_screen_t $2:fd use;

	allow $1_screen_t $2:fifo_file rw_file_perms;

	allow $1_screen_t $1_home_dir_t:dir { search getattr };

	allow $2 $1_screen_ro_home_t:dir create_dir_perms;

	allow $2 $1_screen_ro_home_t:file create_file_perms;

	allow $2 $1_screen_ro_home_t:lnk_file create_lnk_perms;

	allow $2 $1_screen_ro_home_t:{ dir file lnk_file } { relabelfrom relabelto };

	kernel_read_system_state($1_screen_t)

	kernel_read_kernel_sysctls($1_screen_t)

	corecmd_list_bin($1_screen_t)

	corecmd_read_bin_files($1_screen_t)

	corecmd_read_bin_symlinks($1_screen_t)

	corecmd_read_bin_pipes($1_screen_t)

	corecmd_read_bin_sockets($1_screen_t)

	corecmd_list_sbin($1_screen_t)

	corecmd_read_sbin_symlinks($1_screen_t)

	corecmd_read_sbin_files($1_screen_t)

	corecmd_read_sbin_pipes($1_screen_t)

	corecmd_read_sbin_sockets($1_screen_t)

	# Revert to the user domain when a shell is executed.

	corecmd_shell_domtrans($1_screen_t,$2)

	corecmd_bin_domtrans($1_screen_t,$2)

	corenet_non_ipsec_sendrecv($1_screen_t)

	corenet_tcp_sendrecv_generic_if($1_screen_t)

	corenet_udp_sendrecv_generic_if($1_screen_t)

	corenet_tcp_sendrecv_all_nodes($1_screen_t)

	corenet_udp_sendrecv_all_nodes($1_screen_t)

	corenet_tcp_sendrecv_all_ports($1_screen_t)

	corenet_udp_sendrecv_all_ports($1_screen_t)

	corenet_tcp_connect_all_ports($1_screen_t)

	dev_dontaudit_getattr_all_chr_files($1_screen_t)

	dev_dontaudit_getattr_all_blk_files($1_screen_t)

	# for SSP

	dev_read_urand($1_screen_t)

	domain_use_interactive_fds($1_screen_t)

	files_search_tmp($1_screen_t)

	files_search_home($1_screen_t)

	files_list_home($1_screen_t)

	files_read_usr_files($1_screen_t)

	files_read_etc_files($1_screen_t)

	fs_search_auto_mountpoints($1_screen_t)

	fs_getattr_xattr_fs($1_screen_t)

	auth_dontaudit_read_shadow($1_screen_t)

	auth_dontaudit_exec_utempter($1_screen_t)

	# Write to utmp.

	init_rw_utmp($1_screen_t)

	libs_use_ld_so($1_screen_t)

	libs_use_shared_libs($1_screen_t)

	logging_send_syslog_msg($1_screen_t)

	miscfiles_read_localization($1_screen_t)

	seutil_read_config($1_screen_t)

	sysnet_read_config($1_screen_t)

	userdom_use_user_terminals($1,$1_screen_t)

	userdom_create_user_pty($1,$1_screen_t)

	userdom_user_home_domtrans($1,$1_screen_t,$2)

	userdom_setattr_user_ptys($1,$1_screen_t)

	tunable_policy(`read_default_t',`

		files_list_default($1_screen_t)

		files_read_default_files($1_screen_t)

		files_read_default_symlinks($1_screen_t)

		files_read_default_sockets($1_screen_t)

		files_read_default_pipes($1_screen_t)

	')

	tunable_policy(`use_samba_home_dirs',`

		fs_cifs_domtrans($1_screen_t,$2)

		fs_read_cifs_symlinks($1_screen_t)

		fs_list_cifs($1_screen_t)

	')

	tunable_policy(`use_nfs_home_dirs',`

		fs_nfs_domtrans($1_screen_t,$2)

		fs_list_nfs($1_screen_t)

		fs_read_nfs_symlinks($1_screen_t)

	')

	optional_policy(`

		nis_use_ypbind($1_screen_t)

	')

	optional_policy(`

		nscd_socket_use($1_screen_t)

	')

	ifdef(`TODO',`

	# Inherit and use descriptors from gnome-pty-helper.

	optional_policy(`

		allow $1_screen_t $1_gph_t:fd use;

	')

	') dnl TODO

')