diff --git a/refpolicy/policy/modules/system/modutils.te b/refpolicy/policy/modules/system/modutils.te index 6a05a66..0a01207 100644 --- a/refpolicy/policy/modules/system/modutils.te +++ b/refpolicy/policy/modules/system/modutils.te @@ -17,12 +17,47 @@ files_make_file(modules_dep_t) type insmod_t; domain_make_domain(insmod_t) -kernel_load_module(insmod_t) role system_r types insmod_t; type insmod_exec_t; domain_make_entrypoint_file(insmod_t,insmod_exec_t) +type depmod_t; +domain_make_domain(depmod_t) +role system_r types depmod_t; + +type depmod_exec_t; +domain_make_entrypoint_file(depmod_t,depmod_exec_t) + +type update_modules_t; +domain_make_domain(update_modules_t) +role system_r types update_modules_t; + +type update_modules_exec_t; +domain_make_entrypoint_file(update_modules_t,update_modules_exec_t) + +######################################## +# +# insmod local policy +# + +allow insmod_t insmod_exec_t:file { getattr read execute execute_no_trans }; + +# Read module config and dependency information +allow insmod_t { modules_conf_t modules_dep_t }:file { getattr read }; + +# read modules +allow insmod_t modules_object_t:dir { getattr search read }; +allow insmod_t modules_object_t:file { getattr read }; + +allow insmod_t self:capability { dac_override net_raw sys_tty_config }; +allow insmod_t self:process { execmem sigchld sigkill sigstop signull signal }; + +allow insmod_t self:udp_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; +allow insmod_t self:rawip_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; + +kernel_load_module(insmod_t) + # Rules for /proc/sys/kernel/tainted kernel_read_kernel_sysctl(insmod_t) kernel_modify_kernel_sysctl(insmod_t) @@ -39,6 +74,8 @@ filesystem_read_persistent_filesystem_stats(insmod_t) files_read_runtime_system_config(insmod_t) files_read_general_system_config(insmod_t) +files_read_general_shared_resources(insmod_t) +files_execute_system_config_script(insmod_t) domain_signal_all_domains(insmod_t) @@ -51,21 +88,23 @@ corecommands_execute_shell(insmod_t) miscfiles_read_localization(insmod_t) -allow insmod_t insmod_exec_t:file { getattr read execute execute_no_trans }; - -# Read module config and dependency information -allow insmod_t { modules_conf_t modules_dep_t }:file { getattr read }; +logging_send_system_log_message(insmod_t) -# read modules -allow insmod_t modules_object_t:dir { getattr search read }; -allow insmod_t modules_object_t:file { getattr read }; +define(`insmod_mount_optional_policy',` +mount_transition(insmod_t) +') -allow insmod_t self:process { execmem sigchld sigkill sigstop signull signal }; +######################################## +# +# Conditional policy logic +# -allow insmod_t self:udp_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; -allow insmod_t self:unix_dgram_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; -allow insmod_t self:unix_stream_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown listen accept }; -allow insmod_t self:rawip_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; +ifdef(`monolithic_policy',` +ifdef(`mount.te',`insmod_mount_optional_policy') +',` +optional mount { mount_transition_depend } +ifopt (consoletype) { insmod_mount_optional_policy } +') dnl end monolithic_policy # # @@ -74,13 +113,10 @@ allow insmod_t self:rawip_socket { create ioctl read getattr write setattr appen # ifdef(`TODO_list',` -allow insmod_t self:capability { dac_override net_raw sys_tty_config }; - # for loading modules at boot time allow insmod_t { init_t initrc_t }:fd use; allow insmod_t initrc_t:fifo_file { getattr read write }; -allow insmod_t usr_t:file { getattr read }; allow insmod_t lib_t:file { getattr read }; allow insmod_t { var_t var_log_t }:dir search; @@ -95,18 +131,12 @@ allow insmod_t xserver_log_t:file getattr; ') allow insmod_t sysfs_t:dir search; -allow insmod_t { usbfs_t usbdevfs_t }:dir search; -allow insmod_t { usbfs_t usbdevfs_t }:filesystem mount; +allow insmod_t usbfs_t:dir search; +allow insmod_t usbfs_t:filesystem mount; allow insmod_t { initrc_devpts_t admin_tty_type }:chr_file { getattr read write }; allow insmod_t devpts_t:dir { getattr search }; -can_exec(insmod_t,etc_t) - -ifdef(`mount.te', ` -# Run mount in the mount_t domain. -domain_auto_trans(insmod_t, mount_exec_t, mount_t) -') # for when /var is not mounted early in the boot dontaudit insmod_t file_t:dir search; @@ -114,3 +144,122 @@ dontaudit insmod_t file_t:dir search; dontaudit insmod_t var_run_t:dir search; ') dnl if TODO_list + +######################################## +# +# depmod local policy +# + +allow depmod_t depmod_exec_t:file { getattr read execute execute_no_trans }; + +# Read conf.modules. +allow depmod_t modules_conf_t:file { getattr read }; + +# Read module objects. +allow depmod_t modules_object_t:dir { getattr search read }; +allow depmod_t modules_object_t:{ file lnk_file } { getattr read }; + +# Create modules.dep. +allow depmod_t modules_object_t:dir { read getattr lock search ioctl add_name remove_name write }; +allow depmod_t modules_dep_t:file { create ioctl read getattr lock write setattr append link unlink rename }; +type_transition depmod_t modules_object_t:file modules_dep_t; + +kernel_read_system_state(depmod_t) + +filesystem_read_persistent_filesystem_stats(depmod_t) + +terminal_use_console(depmod_t) + +bootloader_read_kernel_symbol_table(depmod_t) + +files_read_runtime_system_config(depmod_t) +files_read_general_system_config(depmod_t) + +libraries_use_dynamic_loader(depmod_t) +libraries_read_shared_libraries(depmod_t) + +ifdef(`TODO',` +r_dir_file(depmod_t, src_t) + +domain_auto_trans(initrc_t, depmod_exec_t, depmod_t) +allow depmod_t { bin_t sbin_t }:dir search; + +domain_auto_trans(sysadm_t, depmod_exec_t, depmod_t) + +# Inherit and use descriptors from init and login programs. +allow depmod_t { init_t privfd }:fd use; + +# read system.map +allow depmod_t boot_t:file { getattr read }; + +# Access terminals. +allow depmod_t { initrc_devpts_t admin_tty_type }:chr_file rw_file_perms; +ifdef(`gnome-pty-helper.te', `allow depmod_t sysadm_gph_t:fd use;') + +# Read System.map from home directories. +allow depmod_t { home_root_t staff_home_dir_t sysadm_home_dir_t }:dir r_dir_perms; +r_dir_file(depmod_t, { staff_home_t sysadm_home_t }) +') dnl end ifdef TODO + +################################# +# +# update-modules local policy +# + +allow update_modules_t self:fifo_file { getattr read write }; + +allow update_modules_t modules_dep_t:file { getattr read write }; + +allow update_modules_t insmod_exec_t:file { getattr read execute execute_no_trans }; +allow update_modules_t update_modules_exec_t:file { getattr read execute execute_no_trans }; + +allow update_modules_t modules_object_t:dir { read getattr lock search ioctl add_name remove_name write }; +allow update_modules_t modules_conf_t:file { create ioctl read getattr lock write setattr append link unlink rename }; +type_transition update_modules_t modules_object_t:file modules_conf_t; + +allow update_modules_t depmod_exec_t:file { getattr read execute }; +type_transition update_modules_t depmod_exec_t:process depmod_t; + +kernel_read_kernel_sysctl(update_modules_t) +kernel_read_system_state(update_modules_t) + +devices_get_pseudorandom_data(update_modules_t) + +filesystem_read_persistent_filesystem_stats(update_modules_t) + +terminal_use_console(update_modules_t) +terminal_use_controlling_terminal(update_modules_t) + +files_read_runtime_system_config(update_modules_t) +files_read_general_system_config(update_modules_t) +files_execute_system_config_script(insmod_t) + +corecommands_execute_general_programs(insmod_t) +corecommands_execute_system_programs(insmod_t) +corecommands_execute_shell(insmod_t) + +libraries_use_dynamic_loader(update_modules_t) +libraries_read_shared_libraries(update_modules_t) + +logging_send_system_log_message(update_modules_t) + +miscfiles_read_localization(update_modules_t) + +ifdef(`TODO',` +role sysadm_r types update_modules_t; + +domain_auto_trans({ initrc_t sysadm_t }, update_modules_exec_t, update_modules_t) +allow update_modules_t privfd:fd use; +allow update_modules_t init_t:fd use; + +allow update_modules_t { initrc_devpts_t admin_tty_type }:chr_file rw_file_perms; +allow update_modules_t devpts_t:dir search; + +dontaudit update_modules_t sysadm_home_dir_t:dir search; + +allow update_modules_t lib_t:file { getattr read }; + +file_type_auto_trans(update_modules_t, etc_t, modules_conf_t, file) + +tmp_domain(update_modules) +') dnl endif TODO