selinux-policy/refpolicy/policy/modules/system/mount.te

type mount_t;
type mount_exec_t;
init_make_system_domain(mount_t,mount_exec_t)
role system_r types mount_t;

type mount_tmp_t;
files_make_temporary_file(mount_tmp_t)

########################################
#
# mount local policy
#

allow mount_t self:capability { ipc_lock sys_rawio sys_admin dac_override chown };

allow mount_t mount_tmp_t:file create_file_perms;
allow mount_t mount_tmp_t:dir create_dir_perms;

kernel_read_system_state(mount_t)
kernel_ignore_use_file_descriptors(mount_t)

corenetwork_ignore_bind_tcp_on_all_reserved_ports(mount_t)
corenetwork_ignore_bind_udp_on_all_reserved_ports(mount_t)

devices_get_all_block_device_attributes(mount_t)
devices_list_device_nodes(mount_t)

storage_raw_read_fixed_disk(mount_t)
storage_raw_write_fixed_disk(mount_t)
storage_raw_read_removable_device(mount_t)
storage_raw_write_removable_device(mount_t)

fs_get_persistent_fs_attributes(mount_t)
fs_mount_all_fs(mount_t)
fs_unmount_all_fs(mount_t)
fs_remount_all_fs(mount_t)
fs_relabelfrom_persistent_fs(mount_t)

terminal_use_console(mount_t)

# required for mount.smbfs
corecommands_execute_system_programs(mount_t)
corecommands_execute_general_programs(mount_t)

domain_use_widely_inheritable_file_descriptors(mount_t)

files_search_all_directories(mount_t)
files_create_private_tmp_data(mount_t,mount_tmp_t,{ file dir })
files_read_general_system_config(mount_t)
files_manage_runtime_system_config(mount_t)
files_mount_on_all_mountpoints(mount_t)
files_unmount_root_fs(mount_t)
# These rules need to be generalized.  Only admin, initrc should have it:
files_relabelto_all_file_type_fs(mount_t)
files_mount_all_file_type_fs(mount_t)
files_mount_all_file_type_fs(mount_t)

init_use_file_descriptors(mount_t)
init_script_use_pseudoterminal(mount_t)

libraries_use_dynamic_loader(mount_t)
libraries_use_shared_libraries(mount_t)

logging_send_system_log_message(mount_t)

miscfiles_read_localization(mount_t)

userdomain_use_all_users_file_descriptors(mount_t)

ifdef(`distro_redhat',`
	fs_use_tmpfs_character_devices(mount_t)
	allow mount_t tmpfs_t:dir mounton;

	optional_policy(`authlogin.te',`
		authlogin_pam_console_read_runtime_data(mount_t)
		# mount config by default sets fscontext=removable_t
		fs_relabelfrom_dos_fs(mount_t)
	')
')

optional_policy(`portmap.te', `
	# for nfs
	#can_ypbind(mount_t)
	#allow portmap_t mount_t:udp_socket { sendto recvfrom };
	#allow mount_t portmap_t:udp_socket { sendto recvfrom };
	#allow mount_t rpc_pipefs_t:dir search;
	corenetwork_sendrecv_tcp_on_all_interfaces(mount_t)
	corenetwork_sendrecv_raw_on_all_interfaces(mount_t)
	corenetwork_sendrecv_udp_on_all_interfaces(mount_t)
	corenetwork_sendrecv_tcp_on_all_nodes(mount_t)
	corenetwork_sendrecv_raw_on_all_nodes(mount_t)
	corenetwork_sendrecv_udp_on_all_nodes(mount_t)
	corenetwork_sendrecv_tcp_on_all_ports(mount_t)
	corenetwork_sendrecv_udp_on_all_ports(mount_t)
	corenetwork_bind_tcp_on_all_nodes(mount_t)
	corenetwork_bind_udp_on_all_nodes(mount_t)
	corenetwork_bind_tcp_on_general_port(mount_t)
	corenetwork_bind_udp_on_general_port(mount_t)
	corenetwork_bind_tcp_on_reserved_port(mount_t)
	corenetwork_bind_udp_on_reserved_port(mount_t)
')

ifdef(`TODO',`
# this goes to the nfs/rpc module
files_make_mountpoint(var_lib_nfs_t)

# TODO: Need to examine this further. Not sure how to handle this
#type sysadm_mount_source_t, file_type, sysadmfile, $1_file_type;
#allow sysadm_t sysadm_mount_source_t:file create_file_perms;
#allow sysadm_t sysadm_mount_source_t:file { relabelto relabelfrom };
#allow mount_t sysadm_mount_source_t:file rw_file_perms;

# TODO: Probably need a macro for reading/unlinking files
# for when /etc/mtab loses its type
allow mount_t file_t:file { r_file_perms unlink };

ifdef(`gnome-pty-helper.te', `
allow mount_t sysadm_gph_t:fd use;
')

optional_policy(`rhgb.te', `
allow mount_t rhgb_t:process sigchld;
allow mount_t rhgb_t:fd use;
allow mount_t rhgb_t:fifo_file { read write };
')

optional_policy(`automount.te', `
allow mount_t autofs_t:dir read;
')

') dnl endif TODO