path: root/policy/modules/services/xserver.te

policy_module(xserver, 3.1.0)

gen_require(`
	class x_drawable all_x_drawable_perms;
	class x_screen all_x_screen_perms;
	class x_gc all_x_gc_perms;
	class x_font all_x_font_perms;
	class x_colormap all_x_colormap_perms;
	class x_property all_x_property_perms;
	class x_selection all_x_selection_perms;
	class x_cursor all_x_cursor_perms;
	class x_client all_x_client_perms;
	class x_device all_x_device_perms;
	class x_server all_x_server_perms;
	class x_extension all_x_extension_perms;
	class x_resource all_x_resource_perms;
	class x_event all_x_event_perms;
	class x_synthetic_event all_x_synthetic_event_perms;
')

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

## <desc>
## <p>
## Allows clients to write to the X server shared
## memory segments.
## </p>
## </desc>
gen_tunable(allow_write_xshm, false)

## <desc>
## <p>
## Allow xdm logins as sysadm
## </p>
## </desc>
gen_tunable(xdm_sysadm_login, false)

## <desc>
## <p>
## Support X userspace object manager
## </p>
## </desc>
gen_tunable(xserver_object_manager, false)

attribute input_xevent_type;
attribute xserver_unconfined_type;
attribute x_domain;
attribute x_userdomain;
attribute xproperty_type;
attribute xselection_type;
attribute xextension_type;
attribute xevent_type;

type accelgraphics_xext_t, xextension_type;
type client_xevent_t, xevent_type;
type clipboard_xproperty_t, xproperty_type;
type clipboard_xselection_t, xselection_type;
type debug_xext_t, xextension_type;
type directhw_xext_t alias disallowed_xext_t, xextension_type;
type focus_xevent_t, xevent_type;

type iceauth_t;
type iceauth_exec_t;
typealias iceauth_t alias { user_iceauth_t staff_iceauth_t sysadm_iceauth_t };
typealias iceauth_t alias { auditadm_iceauth_t secadm_iceauth_t };
application_domain(iceauth_t, iceauth_exec_t)
ubac_constrained(iceauth_t)

type iceauth_home_t;
typealias iceauth_home_t alias { user_iceauth_home_t staff_iceauth_home_t sysadm_iceauth_home_t };
typealias iceauth_home_t alias { auditadm_iceauth_home_t secadm_iceauth_home_t };
files_poly_member(iceauth_home_t)
userdom_user_home_content(iceauth_home_t)

type info_xproperty_t, xproperty_type;
type input_xevent_t, xevent_type;
type manage_xevent_t, xevent_type;
type output_xext_t, xextension_type;
type property_xevent_t, xevent_type;
type remote_xclient_t;

type rootwindow_t;
typealias rootwindow_t alias { user_rootwindow_t staff_rootwindow_t sysadm_rootwindow_t };
typealias rootwindow_t alias { auditadm_rootwindow_t secadm_rootwindow_t };
ubac_constrained(rootwindow_t)

type screensaver_xext_t, xextension_type;
type security_xext_t, xextension_type;
type shmem_xext_t, xextension_type;
type std_xext_t, xextension_type;
type video_xext_t, xextension_type;
type unknown_xevent_t, xevent_type;

xserver_object_types_template(user)
typealias user_xproperty_t alias { staff_xproperty_t sysadm_xproperty_t };
typealias user_xproperty_t alias { auditadm_xproperty_t secadm_xproperty_t };
typealias user_input_xevent_t alias { staff_input_xevent_t sysadm_input_xevent_t };
typealias user_input_xevent_t alias { auditadm_input_xevent_t secadm_input_xevent_t };
typealias user_property_xevent_t alias { staff_property_xevent_t sysadm_property_xevent_t };
typealias user_property_xevent_t alias { auditadm_property_xevent_t secadm_property_xevent_t };
typealias user_focus_xevent_t alias { staff_focus_xevent_t sysadm_focus_xevent_t };
typealias user_focus_xevent_t alias { auditadm_focus_xevent_t secadm_focus_xevent_t };
typealias user_manage_xevent_t alias { staff_manage_xevent_t sysadm_manage_xevent_t };
typealias user_manage_xevent_t alias { auditadm_manage_xevent_t secadm_manage_xevent_t };
typealias user_default_xevent_t alias { staff_default_xevent_t sysadm_default_xevent_t };
typealias user_default_xevent_t alias { auditadm_default_xevent_t secadm_default_xevent_t };
typealias user_client_xevent_t alias { staff_client_xevent_t sysadm_client_xevent_t };
typealias user_client_xevent_t alias { auditadm_client_xevent_t secadm_client_xevent_t };

type user_fonts_t;
typealias user_fonts_t alias { staff_fonts_t sysadm_fonts_t };
typealias user_fonts_t alias { auditadm_fonts_t secadm_fonts_t };
userdom_user_home_content(user_fonts_t)

type user_fonts_cache_t;
typealias user_fonts_cache_t alias { staff_fonts_cache_t sysadm_fonts_cache_t };
typealias user_fonts_cache_t alias { auditadm_fonts_cache_t secadm_fonts_cache_t };
userdom_user_home_content(user_fonts_cache_t)

type user_fonts_config_t;
typealias user_fonts_config_t alias { staff_fonts_config_t sysadm_fonts_config_t };
typealias user_fonts_config_t alias { auditadm_fonts_config_t secadm_fonts_config_t };
userdom_user_home_content(user_fonts_config_t)

type xevent_t alias default_xevent_t, xevent_type;
type xext_t alias unknown_xext_t, xextension_type;
type xproperty_t alias default_xproperty_t, xproperty_type;
type xselection_t alias default_xselection_t, xselection_type;

type xauth_t;
type xauth_exec_t;
typealias xauth_t alias { user_xauth_t staff_xauth_t sysadm_xauth_t };
typealias xauth_t alias { auditadm_xauth_t secadm_xauth_t };
application_domain(xauth_t, xauth_exec_t)
ubac_constrained(xauth_t)

type xauth_home_t;
typealias xauth_home_t alias { user_xauth_home_t staff_xauth_home_t sysadm_xauth_home_t };
typealias xauth_home_t alias { auditadm_xauth_home_t secadm_xauth_home_t };
files_poly_member(xauth_home_t)
userdom_user_home_content(xauth_home_t)

type xauth_tmp_t;
typealias xauth_tmp_t alias { user_xauth_tmp_t staff_xauth_tmp_t sysadm_xauth_tmp_t };
typealias xauth_tmp_t alias { auditadm_xauth_tmp_t secadm_xauth_tmp_t };
files_tmp_file(xauth_tmp_t)
ubac_constrained(xauth_tmp_t)

# this is not actually a device, its a pipe
type xconsole_device_t;
files_type(xconsole_device_t)
fs_associate_tmpfs(xconsole_device_t)
files_associate_tmp(xconsole_device_t)

type xdm_t;
type xdm_exec_t;
auth_login_pgm_domain(xdm_t)
init_domain(xdm_t, xdm_exec_t)
init_daemon_domain(xdm_t, xdm_exec_t)

type xdm_lock_t;
files_lock_file(xdm_lock_t)

type xdm_rw_etc_t;
files_type(xdm_rw_etc_t)

type xdm_var_lib_t;
files_type(xdm_var_lib_t)

type xdm_var_run_t;
files_pid_file(xdm_var_run_t)

type xdm_tmp_t;
files_tmp_file(xdm_tmp_t)
typealias xdm_tmp_t alias ice_tmp_t;

type xdm_tmpfs_t;
files_tmpfs_file(xdm_tmpfs_t)

# type for /var/lib/xkb
type xkb_var_lib_t;
files_type(xkb_var_lib_t)

# Type for the executable used to start the X server, e.g. Xwrapper.
type xserver_t;
type xserver_exec_t;
typealias xserver_t alias { user_xserver_t staff_xserver_t sysadm_xserver_t };
typealias xserver_t alias { auditadm_xserver_t secadm_xserver_t };
xserver_object_types_template(xdm)
xserver_common_x_domain_template(xdm,xdm_t)
init_system_domain(xserver_t, xserver_exec_t)
ubac_constrained(xserver_t)

type xserver_tmp_t;
typealias xserver_tmp_t alias { user_xserver_tmp_t staff_xserver_tmp_t sysadm_xserver_tmp_t };
typealias xserver_tmp_t alias { auditadm_xserver_tmp_t secadm_xserver_tmp_t };
files_tmp_file(xserver_tmp_t)
ubac_constrained(xserver_tmp_t)

type xserver_tmpfs_t;
typealias xserver_tmpfs_t alias { user_xserver_tmpfs_t staff_xserver_tmpfs_t sysadm_xserver_tmpfs_t };
typealias xserver_tmpfs_t alias { auditadm_xserver_tmpfs_t secadm_xserver_tmpfs_t };
files_tmpfs_file(xserver_tmpfs_t)
ubac_constrained(xserver_tmpfs_t)

type xsession_exec_t;
corecmd_executable_file(xsession_exec_t)

# Type for the X server log file.
type xserver_log_t;
logging_log_file(xserver_log_t)

ifdef(`enable_mcs',`
	init_ranged_domain(xdm_t,xdm_exec_t,s0 - mcs_systemhigh)
	init_ranged_daemon_domain(xdm_t,xdm_exec_t,s0 - mcs_systemhigh)
')

optional_policy(`
	prelink_object_file(xkb_var_lib_t)
')

########################################
#
# Iceauth local policy
#

allow iceauth_t iceauth_home_t:file manage_file_perms;
userdom_user_home_dir_filetrans(iceauth_t, iceauth_home_t, file)

allow xdm_t iceauth_home_t:file read_file_perms;

fs_search_auto_mountpoints(iceauth_t)

userdom_use_user_terminals(iceauth_t)

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_files(iceauth_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_files(iceauth_t)
')

########################################
#
# Xauth local policy
#

allow xauth_t self:process signal;
allow xauth_t self:unix_stream_socket create_stream_socket_perms;

allow xauth_t xauth_home_t:file manage_file_perms;
userdom_user_home_dir_filetrans(xauth_t, xauth_home_t, file)

manage_dirs_pattern(xauth_t, xauth_tmp_t, xauth_tmp_t)
manage_files_pattern(xauth_t, xauth_tmp_t, xauth_tmp_t)
files_tmp_filetrans(xauth_t, xauth_tmp_t, { file dir })

allow xdm_t xauth_home_t:file manage_file_perms;
userdom_user_home_dir_filetrans(xdm_t, xauth_home_t, file)

domain_use_interactive_fds(xauth_t)

files_read_etc_files(xauth_t)
files_search_pids(xauth_t)

fs_getattr_xattr_fs(xauth_t)
fs_search_auto_mountpoints(xauth_t)

# cjp: why?
term_use_ptmx(xauth_t)

auth_use_nsswitch(xauth_t)

userdom_use_user_terminals(xauth_t)
userdom_read_user_tmp_files(xauth_t)

xserver_rw_xdm_tmp_files(xauth_t)

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_files(xauth_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_files(xauth_t)
')

optional_policy(`
	ssh_sigchld(xauth_t)
	ssh_read_pipes(xauth_t)
	ssh_dontaudit_rw_tcp_sockets(xauth_t)
')

########################################
#
# XDM Local policy
#

allow xdm_t self:capability { setgid setuid sys_resource kill sys_tty_config mknod chown dac_override dac_read_search fowner fsetid ipc_owner sys_nice sys_rawio net_bind_service };
allow xdm_t self:process { setexec setpgid getsched setsched setrlimit signal_perms setkeycreate };
allow xdm_t self:fifo_file rw_fifo_file_perms;
allow xdm_t self:shm create_shm_perms;
allow xdm_t self:sem create_sem_perms;
allow xdm_t self:unix_stream_socket { connectto create_stream_socket_perms };
allow xdm_t self:unix_dgram_socket create_socket_perms;
allow xdm_t self:tcp_socket create_stream_socket_perms;
allow xdm_t self:udp_socket create_socket_perms;
allow xdm_t self:socket create_socket_perms;
allow xdm_t self:appletalk_socket create_socket_perms;
allow xdm_t self:key { search link write };

allow xdm_t xconsole_device_t:fifo_file { getattr setattr };

# Allow gdm to run gdm-binary
can_exec(xdm_t, xdm_exec_t)

allow xdm_t xdm_lock_t:file manage_file_perms;
files_lock_filetrans(xdm_t, xdm_lock_t, file)

# wdm has its own config dir /etc/X11/wdm
# this is ugly, daemons should not create files under /etc!
manage_files_pattern(xdm_t, xdm_rw_etc_t, xdm_rw_etc_t)

manage_dirs_pattern(xdm_t, xdm_tmp_t, xdm_tmp_t)
manage_files_pattern(xdm_t, xdm_tmp_t, xdm_tmp_t)
manage_sock_files_pattern(xdm_t, xdm_tmp_t, xdm_tmp_t)
files_tmp_filetrans(xdm_t, xdm_tmp_t, { file dir sock_file })

manage_dirs_pattern(xdm_t, xdm_tmpfs_t, xdm_tmpfs_t)
manage_files_pattern(xdm_t, xdm_tmpfs_t, xdm_tmpfs_t)
manage_lnk_files_pattern(xdm_t, xdm_tmpfs_t, xdm_tmpfs_t)
manage_fifo_files_pattern(xdm_t, xdm_tmpfs_t, xdm_tmpfs_t)
manage_sock_files_pattern(xdm_t, xdm_tmpfs_t, xdm_tmpfs_t)
fs_tmpfs_filetrans(xdm_t, xdm_tmpfs_t,{ dir file lnk_file sock_file fifo_file })

manage_dirs_pattern(xdm_t, xdm_var_lib_t, xdm_var_lib_t)	
manage_files_pattern(xdm_t, xdm_var_lib_t, xdm_var_lib_t)
files_var_lib_filetrans(xdm_t, xdm_var_lib_t, file)

manage_dirs_pattern(xdm_t, xdm_var_run_t, xdm_var_run_t)
manage_files_pattern(xdm_t, xdm_var_run_t, xdm_var_run_t)
manage_fifo_files_pattern(xdm_t, xdm_var_run_t, xdm_var_run_t)
files_pid_filetrans(xdm_t, xdm_var_run_t, { dir file fifo_file })

allow xdm_t xserver_t:process signal;
allow xdm_t xserver_t:unix_stream_socket connectto;

allow xdm_t xserver_tmp_t:sock_file rw_sock_file_perms;
allow xdm_t xserver_tmp_t:dir { setattr list_dir_perms };

# transition to the xdm xserver
domtrans_pattern(xdm_t, xserver_exec_t, xserver_t)
allow xserver_t xdm_t:process signal;
allow xdm_t xserver_t:process { noatsecure siginh rlimitinh signal sigkill };

allow xdm_t xserver_t:shm rw_shm_perms;

# connect to xdm xserver over stream socket
stream_connect_pattern(xdm_t,xserver_tmp_t,xserver_tmp_t,xserver_t)

# Remove /tmp/.X11-unix/X0.
delete_files_pattern(xdm_t,xserver_tmp_t,xserver_tmp_t)
delete_sock_files_pattern(xdm_t,xserver_tmp_t,xserver_tmp_t)

manage_dirs_pattern(xdm_t, xserver_log_t, xserver_log_t)
manage_files_pattern(xdm_t, xserver_log_t, xserver_log_t)
manage_fifo_files_pattern(xdm_t, xserver_log_t, xserver_log_t)
logging_log_filetrans(xdm_t, xserver_log_t, file)

kernel_read_system_state(xdm_t)
kernel_read_kernel_sysctls(xdm_t)
kernel_read_net_sysctls(xdm_t)
kernel_read_network_state(xdm_t)

corecmd_exec_shell(xdm_t)
corecmd_exec_bin(xdm_t)

corenet_all_recvfrom_unlabeled(xdm_t)
corenet_all_recvfrom_netlabel(xdm_t)
corenet_tcp_sendrecv_generic_if(xdm_t)
corenet_udp_sendrecv_generic_if(xdm_t)
corenet_tcp_sendrecv_all_nodes(xdm_t)
corenet_udp_sendrecv_all_nodes(xdm_t)
corenet_tcp_sendrecv_all_ports(xdm_t)
corenet_udp_sendrecv_all_ports(xdm_t)
corenet_tcp_bind_all_nodes(xdm_t)
corenet_udp_bind_all_nodes(xdm_t)
corenet_tcp_connect_all_ports(xdm_t)
corenet_sendrecv_all_client_packets(xdm_t)
# xdm tries to bind to biff_port_t
corenet_dontaudit_tcp_bind_all_ports(xdm_t)

dev_read_rand(xdm_t)
dev_read_sysfs(xdm_t)
dev_getattr_framebuffer_dev(xdm_t)
dev_setattr_framebuffer_dev(xdm_t)
dev_getattr_mouse_dev(xdm_t)
dev_setattr_mouse_dev(xdm_t)
dev_rw_apm_bios(xdm_t)
dev_setattr_apm_bios_dev(xdm_t)
dev_rw_dri(xdm_t)
dev_rw_agp(xdm_t)
dev_getattr_xserver_misc_dev(xdm_t)
dev_setattr_xserver_misc_dev(xdm_t)
dev_getattr_misc_dev(xdm_t)
dev_setattr_misc_dev(xdm_t)
dev_dontaudit_rw_misc(xdm_t)
dev_getattr_video_dev(xdm_t)
dev_setattr_video_dev(xdm_t)
dev_getattr_scanner_dev(xdm_t)
dev_setattr_scanner_dev(xdm_t)
dev_getattr_sound_dev(xdm_t)
dev_setattr_sound_dev(xdm_t)
dev_getattr_power_mgmt_dev(xdm_t)
dev_setattr_power_mgmt_dev(xdm_t)

domain_use_interactive_fds(xdm_t)
# Do not audit denied probes of /proc.
domain_dontaudit_read_all_domains_state(xdm_t)

files_read_etc_files(xdm_t)
files_read_var_files(xdm_t)
files_read_etc_runtime_files(xdm_t)
files_exec_etc_files(xdm_t)
files_list_mnt(xdm_t)
# Read /usr/share/terminfo/l/linux and /usr/share/icons/default/index.theme...
files_read_usr_files(xdm_t)
# Poweroff wants to create the /poweroff file when run from xdm
files_create_boot_flag(xdm_t)

fs_getattr_all_fs(xdm_t)
fs_search_auto_mountpoints(xdm_t)

storage_dontaudit_read_fixed_disk(xdm_t)
storage_dontaudit_write_fixed_disk(xdm_t)
storage_dontaudit_setattr_fixed_disk_dev(xdm_t)
storage_dontaudit_raw_read_removable_device(xdm_t)
storage_dontaudit_raw_write_removable_device(xdm_t)
storage_dontaudit_setattr_removable_dev(xdm_t)
storage_dontaudit_rw_scsi_generic(xdm_t)

term_setattr_console(xdm_t)
term_use_unallocated_ttys(xdm_t)
term_setattr_unallocated_ttys(xdm_t)

auth_domtrans_pam_console(xdm_t)
auth_manage_pam_pid(xdm_t)
auth_manage_pam_console_data(xdm_t)
auth_rw_faillog(xdm_t)
auth_write_login_records(xdm_t)

# Run telinit->init to shutdown.
init_telinit(xdm_t)

libs_exec_lib_files(xdm_t)

logging_read_generic_logs(xdm_t)

miscfiles_read_localization(xdm_t)
miscfiles_read_fonts(xdm_t)

sysnet_read_config(xdm_t)

userdom_dontaudit_use_unpriv_user_fds(xdm_t)
userdom_create_all_users_keys(xdm_t)
# for .dmrc
userdom_read_user_home_content_files(xdm_t)
# Search /proc for any user domain processes.
userdom_read_all_users_state(xdm_t)
userdom_signal_all_users(xdm_t)

xserver_rw_session(xdm_t,xdm_tmpfs_t)
xserver_unconfined(xdm_t)

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_dirs(xdm_t)
	fs_manage_nfs_files(xdm_t)
	fs_manage_nfs_symlinks(xdm_t)
	fs_exec_nfs_files(xdm_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_dirs(xdm_t)
	fs_manage_cifs_files(xdm_t)
	fs_manage_cifs_symlinks(xdm_t)
	fs_exec_cifs_files(xdm_t)
')

tunable_policy(`xdm_sysadm_login',`
	userdom_xsession_spec_domtrans_all_users(xdm_t)
	# FIXME:
#	xserver_rw_session_template(xdm,userdomain)
',`
	userdom_xsession_spec_domtrans_unpriv_users(xdm_t)
	# FIXME:
#	xserver_rw_session_template(xdm,unpriv_userdomain)
#	dontaudit xserver_t sysadm_t:shm { unix_read unix_write };
#	allow xserver_t xdm_tmpfs_t:file rw_file_perms;
')

optional_policy(`
	alsa_domtrans(xdm_t)
')

optional_policy(`
	consolekit_dbus_chat(xdm_t)
')

optional_policy(`
	consoletype_exec(xdm_t)
')

optional_policy(`
	# Talk to the console mouse server.
	gpm_stream_connect(xdm_t)
	gpm_setattr_gpmctl(xdm_t)
')

optional_policy(`
	hostname_exec(xdm_t)
')

optional_policy(`
	loadkeys_exec(xdm_t)
')

optional_policy(`
	locallogin_signull(xdm_t)
')

optional_policy(`
	# Do not audit attempts to check whether user root has email
	mta_dontaudit_getattr_spool_files(xdm_t)
')

optional_policy(`
	resmgr_stream_connect(xdm_t)
')

optional_policy(`
	seutil_sigchld_newrole(xdm_t)
')

optional_policy(`
	udev_read_db(xdm_t)
')

optional_policy(`
	unconfined_domain(xdm_t)
	unconfined_domtrans(xdm_t)

	ifndef(`distro_redhat',`
		allow xdm_t self:process { execheap execmem };
	')

	ifdef(`distro_rhel4',`
		allow xdm_t self:process { execheap execmem };
	')
')

optional_policy(`
	userhelper_dontaudit_search_config(xdm_t)
')

optional_policy(`
	usermanage_read_crack_db(xdm_t)
')

optional_policy(`
	xfs_stream_connect(xdm_t)
')

########################################
#
# X server local policy
#

# setuid/setgid for the wrapper program to change UID
# sys_rawio is for iopl access - should not be needed for frame-buffer
# sys_admin, locking shared mem?  chowning IPC message queues or semaphores?
# admin of APM bios?
# sys_nice is so that the X server can set a negative nice value
# execheap needed until the X module loader is fixed.
# NVIDIA Needs execstack

allow xserver_t self:capability { dac_override fowner fsetid setgid setuid ipc_owner sys_rawio sys_admin sys_nice sys_tty_config mknod net_bind_service };
dontaudit xserver_t self:capability chown;
allow xserver_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow xserver_t self:memprotect mmap_zero;
allow xserver_t self:fd use;
allow xserver_t self:fifo_file rw_fifo_file_perms;
allow xserver_t self:sock_file read_sock_file_perms;
allow xserver_t self:shm create_shm_perms;
allow xserver_t self:sem create_sem_perms;
allow xserver_t self:msgq create_msgq_perms;
allow xserver_t self:msg { send receive };
allow xserver_t self:unix_dgram_socket { create_socket_perms sendto };
allow xserver_t self:unix_stream_socket { create_stream_socket_perms connectto };
allow xserver_t self:tcp_socket create_stream_socket_perms;
allow xserver_t self:udp_socket create_socket_perms;

# Device rules
allow x_domain xserver_t:x_device { read getattr use setattr setfocus grab bell };

allow xserver_t { input_xevent_t input_xevent_type }:x_event send;

domtrans_pattern(xserver_t, xauth_exec_t, xauth_t)

allow xserver_t xauth_home_t:file read_file_perms;

# Labeling rules for root windows and colormaps
type_transition xserver_t xserver_t:{ x_drawable x_colormap } rootwindow_t;

allow xserver_t { rootwindow_t x_domain }:x_drawable send;

manage_dirs_pattern(xserver_t, xserver_tmp_t, xserver_tmp_t)
manage_files_pattern(xserver_t, xserver_tmp_t, xserver_tmp_t)
manage_sock_files_pattern(xserver_t, xserver_tmp_t, xserver_tmp_t)
files_tmp_filetrans(xserver_t, xserver_tmp_t, { file dir sock_file })

filetrans_pattern(xserver_t, xserver_tmp_t, xserver_tmp_t,sock_file)

manage_dirs_pattern(xserver_t, xserver_tmpfs_t, xserver_tmpfs_t)
manage_files_pattern(xserver_t, xserver_tmpfs_t, xserver_tmpfs_t)
manage_lnk_files_pattern(xserver_t, xserver_tmpfs_t, xserver_tmpfs_t)
manage_fifo_files_pattern(xserver_t, xserver_tmpfs_t, xserver_tmpfs_t)
manage_sock_files_pattern(xserver_t, xserver_tmpfs_t, xserver_tmpfs_t)
fs_tmpfs_filetrans(xserver_t, xserver_tmpfs_t, { dir file lnk_file sock_file fifo_file })

manage_files_pattern(xserver_t, xkb_var_lib_t, xkb_var_lib_t)
manage_lnk_files_pattern(xserver_t, xkb_var_lib_t, xkb_var_lib_t)
files_search_var_lib(xserver_t)

# Create files in /var/log with the xserver_log_t type.
manage_files_pattern(xserver_t, xserver_log_t, xserver_log_t)
logging_log_filetrans(xserver_t, xserver_log_t,file)

kernel_read_system_state(xserver_t)
kernel_read_device_sysctls(xserver_t)
kernel_read_modprobe_sysctls(xserver_t)
# Xorg wants to check if kernel is tainted
kernel_read_kernel_sysctls(xserver_t)
kernel_write_proc_files(xserver_t)

# Run helper programs in xserver_t.
corecmd_exec_bin(xserver_t)
corecmd_exec_shell(xserver_t)

corenet_all_recvfrom_unlabeled(xserver_t)
corenet_all_recvfrom_netlabel(xserver_t)
corenet_tcp_sendrecv_generic_if(xserver_t)
corenet_udp_sendrecv_generic_if(xserver_t)
corenet_tcp_sendrecv_all_nodes(xserver_t)
corenet_udp_sendrecv_all_nodes(xserver_t)
corenet_tcp_sendrecv_all_ports(xserver_t)
corenet_udp_sendrecv_all_ports(xserver_t)
corenet_tcp_bind_all_nodes(xserver_t)
corenet_tcp_bind_xserver_port(xserver_t)
corenet_tcp_connect_all_ports(xserver_t)
corenet_sendrecv_xserver_server_packets(xserver_t)
corenet_sendrecv_all_client_packets(xserver_t)

dev_rw_sysfs(xserver_t)
dev_rw_mouse(xserver_t)
dev_rw_mtrr(xserver_t)
dev_rw_apm_bios(xserver_t)
dev_rw_agp(xserver_t)
dev_rw_framebuffer(xserver_t)
dev_manage_dri_dev(xserver_t)
dev_create_generic_dirs(xserver_t)
dev_setattr_generic_dirs(xserver_t)
# raw memory access is needed if not using the frame buffer
dev_read_raw_memory(xserver_t)
dev_wx_raw_memory(xserver_t)
# for other device nodes such as the NVidia binary-only driver
dev_rw_xserver_misc(xserver_t)
# read events - the synaptics touchpad driver reads raw events
dev_rw_input_dev(xserver_t)
dev_rwx_zero(xserver_t)

domain_mmap_low(xserver_t)

files_read_etc_files(xserver_t)
files_read_etc_runtime_files(xserver_t)
files_read_usr_files(xserver_t)

# brought on by rhgb
files_search_mnt(xserver_t)
# for nscd
files_dontaudit_search_pids(xserver_t)

fs_getattr_xattr_fs(xserver_t)
fs_search_nfs(xserver_t)
fs_search_auto_mountpoints(xserver_t)
fs_search_ramfs(xserver_t)

mls_xwin_read_to_clearance(xserver_t)

selinux_validate_context(xserver_t)
selinux_compute_access_vector(xserver_t)
selinux_compute_create_context(xserver_t)

auth_use_nsswitch(xserver_t)

init_getpgid(xserver_t)

term_setattr_unallocated_ttys(xserver_t)
term_use_unallocated_ttys(xserver_t)

getty_use_fds(xserver_t)

locallogin_use_fds(xserver_t)

logging_send_syslog_msg(xserver_t)
logging_send_audit_msgs(xserver_t)

miscfiles_read_localization(xserver_t)
miscfiles_read_fonts(xserver_t)

modutils_domtrans_insmod(xserver_t)

# read x_contexts
seutil_read_default_contexts(xserver_t)

userdom_search_user_home_dirs(xserver_t)
userdom_use_user_ttys(xserver_t)
userdom_setattr_user_ttys(xserver_t)
userdom_rw_user_tmpfs_files(xserver_t)

xserver_use_user_fonts(xserver_t)

ifndef(`distro_redhat',`
	allow xserver_t self:process { execmem execheap execstack };
')

ifdef(`distro_rhel4',`
	allow xserver_t self:process { execmem execheap execstack };
')

ifdef(`enable_mls',`
	range_transition xserver_t xserver_tmp_t:sock_file s0 - mls_systemhigh;
	range_transition xserver_t xserver_t:x_drawable s0 - mls_systemhigh;
')

tunable_policy(`!xserver_object_manager',`
	# should be xserver_unconfined(xserver_t),
	# but typeattribute doesnt work in conditionals

	allow xserver_t xserver_t:x_server *;
	allow xserver_t { x_domain rootwindow_t }:x_drawable *;
	allow xserver_t xserver_t:x_screen *;
	allow xserver_t x_domain:x_gc *;
	allow xserver_t { x_domain rootwindow_t }:x_colormap *;
	allow xserver_t xproperty_type:x_property *;
	allow xserver_t xselection_type:x_selection *;
	allow xserver_t x_domain:x_cursor *;
	allow xserver_t { x_domain remote_xclient_t }:x_client *;
	allow xserver_t { x_domain xserver_t }:x_device *;
	allow xserver_t xextension_type:x_extension *;
	allow xserver_t { x_domain xserver_t }:x_resource *;
	allow xserver_t xevent_type:{ x_event x_synthetic_event } *;
')

optional_policy(`
	apm_stream_connect(xserver_t)
')

optional_policy(`
	auth_search_pam_console_data(xserver_t)
')

optional_policy(`
	rhgb_getpgid(xserver_t)
	rhgb_signal(xserver_t)
')

optional_policy(`
	unconfined_domain_noaudit(xserver_t)
	unconfined_domtrans(xserver_t)
')

optional_policy(`
	userhelper_search_config(xserver_t)
')

optional_policy(`
	xfs_stream_connect(xserver_t)
')

########################################
#
# XDM Xserver local policy
#
# cjp: when xdm is configurable via tunable these
# rules will be enabled only when xdm is enabled

allow xserver_t xdm_t:process { signal getpgid };
allow xserver_t xdm_t:shm rw_shm_perms;

# NB we do NOT allow xserver_t xdm_var_lib_t:dir, only access to an open
# handle of a file inside the dir!!!
allow xserver_t xdm_var_lib_t:file { getattr read };
dontaudit xserver_t xdm_var_lib_t:dir search;

allow xserver_t xdm_var_run_t:file read_file_perms;

# Label pid and temporary files with derived types.
manage_files_pattern(xserver_t, xdm_tmp_t, xdm_tmp_t)
manage_lnk_files_pattern(xserver_t, xdm_tmp_t, xdm_tmp_t)
manage_sock_files_pattern(xserver_t, xdm_tmp_t, xdm_tmp_t)

# Run xkbcomp.
allow xserver_t xkb_var_lib_t:lnk_file read;
can_exec(xserver_t, xkb_var_lib_t)

# VNC v4 module in X server
corenet_tcp_bind_vnc_port(xserver_t)

init_use_fds(xserver_t)

# FIXME: After per user fonts are properly working
# xserver_t may no longer have any reason
# to read ROLE_home_t - examine this in more detail
# (xauth?)
userdom_read_user_home_content_files(xserver_t)

xserver_use_user_fonts(xserver_t)

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_dirs(xserver_t)
	fs_manage_nfs_files(xserver_t)
	fs_manage_nfs_symlinks(xserver_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_dirs(xserver_t)
	fs_manage_cifs_files(xserver_t)
	fs_manage_cifs_symlinks(xserver_t)
')

optional_policy(`
	dbus_system_bus_client(xserver_t)
	hal_dbus_chat(xserver_t)
')

optional_policy(`
	resmgr_stream_connect(xdm_t)
')

optional_policy(`
	rhgb_rw_shm(xserver_t)
	rhgb_rw_tmpfs_files(xserver_t)
')

########################################
#
# Rules common to all X window domains
#

# Hacks
# everyone can get the input focus of everyone else
# this is a fundamental brokenness in the X protocol
allow x_domain { x_domain xserver_t }:x_device getfocus;
# everyone can grab the server
# everyone does it, it is basically a free DOS attack
allow x_domain xserver_t:x_server grab;
# everyone can get the font path, etc.
# this could leak out sensitive information
allow x_domain xserver_t:x_server getattr;
# everyone can do override-redirect windows.
# this could be used to spoof labels
allow x_domain self:x_drawable override;
# everyone can receive management events on the root window
# allows to know when new windows appear, among other things
allow x_domain manage_xevent_t:x_event receive;

# X Server
# can read server-owned resources
allow x_domain xserver_t:x_resource read;
# can mess with own clients
allow x_domain self:x_client { manage destroy };

# X Protocol Extensions
allow x_domain std_xext_t:x_extension { query use };
allow x_domain shmem_xext_t:x_extension { query use };
dontaudit x_domain xextension_type:x_extension { query use };

# X Properties
# can read and write cut buffers
allow x_domain clipboard_xproperty_t:x_property { create read write append };
# can read info properties
allow x_domain info_xproperty_t:x_property read;
# can change properties of root window
allow x_domain rootwindow_t:x_drawable { list_property get_property set_property };
# can change properties of own windows
allow x_domain self:x_drawable { list_property get_property set_property };

# X Windows
# operations allowed on root windows
allow x_domain rootwindow_t:x_drawable { getattr list_child add_child remove_child send receive };
# operations allowed on my windows
allow x_domain self:x_drawable { create destroy getattr setattr read write show hide list_child add_child remove_child manage send receive };

# X Colormaps
# can use the default colormap
allow x_domain rootwindow_t:x_colormap { read use add_color };

# X Input
# can receive certain root window events
allow x_domain focus_xevent_t:x_event receive;
allow x_domain property_xevent_t:x_event receive;
allow x_domain client_xevent_t:x_synthetic_event receive;
allow x_domain manage_xevent_t:x_synthetic_event receive;
# can send ICCCM events to the root window
allow x_domain manage_xevent_t:x_synthetic_event send;
allow x_domain client_xevent_t:x_synthetic_event send;
# X Selections
# can use the clipboard
allow x_domain clipboard_xselection_t:x_selection { getattr setattr read };
# can query all other selections
allow x_domain xselection_t:x_selection { getattr read };

# Other X Objects
# can create and use cursors
allow x_domain self:x_cursor *;
# can create and use graphics contexts
allow x_domain self:x_gc *;
# can create and use colormaps
allow x_domain self:x_colormap *;
# can read and write own objects
allow x_domain self:x_resource { read write };

tunable_policy(`! xserver_object_manager',`
	# should be xserver_unconfined(x_domain),
	# but typeattribute doesnt work in conditionals

	allow x_domain xserver_t:x_server *;
	allow x_domain { x_domain rootwindow_t }:x_drawable *;
	allow x_domain xserver_t:x_screen *;
	allow x_domain x_domain:x_gc *;
	allow x_domain { x_domain rootwindow_t }:x_colormap *;
	allow x_domain xproperty_type:x_property *;
	allow x_domain xselection_type:x_selection *;
	allow x_domain x_domain:x_cursor *;
	allow x_domain { x_domain remote_xclient_t }:x_client *;
	allow x_domain { x_domain xserver_t }:x_device *;
	allow x_domain xextension_type:x_extension *;
	allow x_domain { x_domain xserver_t }:x_resource *;
	allow x_domain xevent_type:{ x_event x_synthetic_event } *;
')

########################################
#
# Rules for unconfined access to this module
#

allow xserver_unconfined_type xserver_t:x_server *;
allow xserver_unconfined_type { x_domain rootwindow_t }:x_drawable *;
allow xserver_unconfined_type xserver_t:x_screen *;
allow xserver_unconfined_type x_domain:x_gc *;
allow xserver_unconfined_type { x_domain rootwindow_t }:x_colormap *;
allow xserver_unconfined_type xproperty_type:x_property *;
allow xserver_unconfined_type xselection_type:x_selection *;
allow xserver_unconfined_type x_domain:x_cursor *;
allow xserver_unconfined_type { x_domain remote_xclient_t }:x_client *;
allow xserver_unconfined_type { x_domain xserver_t }:x_device *;
allow xserver_unconfined_type xextension_type:x_extension *;
allow xserver_unconfined_type { x_domain xserver_t }:x_resource *;
allow xserver_unconfined_type xevent_type:{ x_event x_synthetic_event } *;

ifdef(`TODO',`
tunable_policy(`allow_polyinstantiation',`
# xdm needs access for linking .X11-unix to poly /tmp
allow xdm_t polymember:dir { add_name remove_name write };
allow xdm_t polymember:lnk_file { create unlink };
# xdm needs access for copying .Xauthority into new home
allow xdm_t polymember:file { create getattr write };
')

#
# Wants to delete .xsession-errors file
#
allow xdm_t user_home_type:file unlink;
') dnl end TODO