type bootloader_t; domain_make_domain(bootloader_t) type bootloader_exec_t; domain_make_entrypoint_file(bootloader_t,bootloader_exec_t) # # boot_t is the type for files in /boot # type boot_t; files_make_file(boot_t) # # bootloader_etc_t is the configuration file, # grub.conf, lilo.conf, etc. # type bootloader_etc_t alias etc_bootloader_t; files_make_file(bootloader_etc_t) # # system_map_t is for the system.map files in /boot # type system_map_t; files_make_file(system_map_t) # # The temp file is used for initrd creation; # it consists of files and device nodes # type bootloader_tmp_t; files_make_file(bootloader_tmp_t) devices_make_device_node(bootloader_tmp_t) allow bootloader_t self:capability { dac_read_search fsetid sys_rawio sys_admin mknod chown }; allow bootloader_t self:process { sigkill sigstop signull signal }; allow bootloader_t self:fifo_file { getattr read write }; kernel_stat_kernel_core_interface(bootloader_t) kernel_read_system_state(bootloader_t) kernel_read_software_raid_state(bootloader_t) kernel_read_kernel_sysctl(bootloader_t) storage_raw_read_fixed_disk(bootloader_t) storage_raw_write_fixed_disk(bootloader_t) storage_raw_read_removable_device(bootloader_t) storage_raw_write_removable_device(bootloader_t) # for reading BIOS data (cjp: ?) devices_raw_read_memory(bootloader_t) libraries_use_dynamic_loader(bootloader_t) libraries_read_shared_libraries(bootloader_t) files_read_general_system_config(bootloader_t) files_read_runtime_system_config(bootloader_t) files_read_system_source_code(bootloader_t) # uncomment the following line if you use "lilo -p" #files_create_private_config(bootloader_t,bootloader_etc_t) #allow bootloader_t bootloader_etc_t:file { create ioctl read getattr lock write setattr append link unlink rename }; filesystem_read_persistent_filesystem_stats(bootloader_t) terminal_use_controlling_terminal(bootloader_t) allow bootloader_t bootloader_etc_t:file { getattr read }; define(`initrc_insmod_optional_policy', ` modutils_insmod_execute(insmod_t) ') miscfiles_read_localization(bootloader_t) devices_ignore_modify_generic_devices(bootloader_t) ######################################## # # mkinitrd policy # files_read_general_system_resources(bootloader_t) bootloader_install_initrd(bootloader_t) devices_get_random_data(bootloader_t) devices_get_pseudorandom_data(bootloader_t) corecommands_execute_general_programs(bootloader_t) corecommands_execute_system_programs(bootloader_t) corecommands_execute_shell(bootloader_t) selinux_read_binary_policy(bootloader_t) selinux_read_load_policy_binary(bootloader_t) modutils_read_kernel_modules(bootloader_t) modutils_read_kernel_module_dependencies(bootloader_t) modutils_read_kernel_module_loading_config(bootloader_t) logging_modify_system_logs(bootloader_t) files_create_private_tmp_data(bootloader_t,bootloader_tmp_t,{ dir file lnk_file chr_file blk_file }) allow bootloader_t bootloader_tmp_t:dir { create read getattr lock setattr ioctl link unlink rename search add_name remove_name reparent write rmdir }; allow bootloader_t bootloader_tmp_t:file { create ioctl read getattr lock write setattr append link unlink rename }; allow bootloader_t bootloader_tmp_t:chr_file { create ioctl read getattr lock write setattr append link unlink rename }; allow bootloader_t bootloader_tmp_t:blk_file { create ioctl read getattr lock write setattr append link unlink rename }; allow bootloader_t bootloader_tmp_t:lnk_file { create read getattr setattr unlink rename }; # for tune2fs (cjp: ?) files_create_private_root_dir_entry(bootloader_t,bootloader_tmp_t) ################################################################################ ifdef(`TODO',` # admin runs bootloader: domain_auto_trans(sysadm_t, bootloader_exec_t, bootloader_t) allow bootloader_t admin_tty_type:chr_file rw_file_perms; allow bootloader_t privfd:fd use; allow bootloader_t { device_type ttyfile }:chr_file getattr; allow bootloader_t device_type:blk_file getattr; allow bootloader_t initctl_t:fifo_file getattr; # no transition from initrc to bootloader, # so why are these rules needed role system_r types bootloader_t; allow bootloader_t initrc_devpts_t:chr_file rw_file_perms; allow bootloader_t initrc_t:fifo_file { read write }; allow bootloader_t initrc_t:fd use; allow bootloader_t lib_t:file { getattr read }; allow bootloader_t sysfs_t:dir getattr; allow bootloader_t var_t:dir search; allow bootloader_t var_t:file { getattr read }; ifdef(`fsadm.te', ` allow bootloader_t fsadm_exec_t:file { rx_file_perms execute_no_trans }; ') # LVM2 / Device Mapper's /dev/mapper/control # maybe we should change the labeling for this ifdef(`lvm.te', ` allow bootloader_t lvm_control_t:chr_file rw_file_perms; domain_auto_trans(bootloader_t, lvm_exec_t, lvm_t) allow lvm_t bootloader_tmp_t:file rw_file_perms; r_dir_file(bootloader_t, lvm_etc_t) ') ifdef(`distro_debian', ` allow bootloader_t bootloader_tmp_t:{ dir file } { relabelfrom relabelto }; allow bootloader_t modules_object_t:file { relabelfrom relabelto unlink }; allow bootloader_t boot_t:file relabelfrom; allow bootloader_t { usr_t lib_t fsadm_exec_t }:file relabelto; allow bootloader_t { usr_t lib_t fsadm_exec_t }:file create_file_perms; allow bootloader_t tmpfs_t:dir r_dir_perms; allow bootloader_t initrc_var_run_t:dir r_dir_perms; allow bootloader_t var_lib_t:dir search; allow bootloader_t dpkg_var_lib_t:dir r_dir_perms; allow bootloader_t dpkg_var_lib_t:file { getattr read }; # for /usr/share/initrd-tools/scripts can_exec(bootloader_t, usr_t) ') ifdef(`distro_redhat', ` # for mke2fs domain_auto_trans(bootloader_t, mount_exec_t, mount_t); allow mount_t bootloader_tmp_t:dir mounton; allow bootloader_t modules_object_t:lnk_file { getattr read }; # new file system defaults to file_t, granting file_t access is still bad. allow bootloader_t file_t:dir create_dir_perms; allow bootloader_t file_t:{ file blk_file chr_file } create_file_perms; allow bootloader_t file_t:lnk_file create_lnk_perms; allow bootloader_t self:unix_stream_socket create_socket_perms; allow bootloader_t boot_runtime_t:file { read getattr unlink }; # for memlock allow bootloader_t zero_device_t:chr_file { getattr read }; allow bootloader_t self:capability ipc_lock; ') dontaudit bootloader_t selinux_config_t:dir search; dontaudit bootloader_t { staff_home_dir_t sysadm_home_dir_t }:dir search; dontaudit bootloader_t devpts_t:dir create_dir_perms; # for nscd dontaudit bootloader_t var_run_t:dir search; ') dnl end TODO ######################################## # # Conditional policy logic # ifdef(`monolithic_policy',` ifdef(`modutils.te',`initrc_insmod_optional_policy') ',` optional modutils { modutils_insmod_execute_depend } ifopt (modutils) { initrc_insmod_optional_policy } ') dnl end monolithic_policy