diff --git a/refpolicy/policy/modules/system/udev.if b/refpolicy/policy/modules/system/udev.if new file mode 100644 index 000000000..812134c53 --- /dev/null +++ b/refpolicy/policy/modules/system/udev.if @@ -0,0 +1,33 @@ +# Copyright (C) 2005 Tresys Technology, LLC + +####################################### +# +# udev_transition(domain,[`optional']) +# +define(`udev_transition',` +requires_block_template(udev_transition_depend,$2) +allow $1 udev_exec_t:file { getattr read execute }; +allow $1 udev_t:process transition; +type_transition $1 udev_exec_t:file udev_t; +dontaudit $1 udev_t:process { noatsecure siginh rlimitinh }; +') + +define(`udev_transition_depend',` +type udev_t, udev_exec_t; +class file { getattr read execute }; +class process { transition noatsecure siginh rlimitinh }; +') + +######################################## +# +# udev_read_database(domain,[`optional']) +# +define(`udev_read_database',` +requires_block_template(udev_read_database_depend,$2) +allow $1 udev_tdb_t:file { getattr read }; +') + +define(`udev_read_database_depend',` +type udev_tdb_t; +class file { getattr read }; +') diff --git a/refpolicy/policy/modules/system/udev.te b/refpolicy/policy/modules/system/udev.te new file mode 100644 index 000000000..432f08928 --- /dev/null +++ b/refpolicy/policy/modules/system/udev.te @@ -0,0 +1,148 @@ +# Copyright (C) 2005 Tresys Technology, LLC + +type udev_t; # nscd_client_domain, privmem, privfd, privowner +type udev_exec_t; +type udev_helper_exec_t; +domain_make_daemon_domain(udev_t,udev_exec_t) +domain_make_entrypoint_file(udev_t,udev_helper_exec_t) + +type udev_etc_t alias etc_udev_t; +files_make_file(udev_etc_t) + +type udev_tbl_t alias udev_tdb_t; +files_make_file(udev_tbl_t) + +allow udev_t self:capability { chown dac_override dac_read_search fowner fsetid sys_admin mknod net_raw net_admin }; +allow udev_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition }; +allow udev_t self:process { execmem setfscreate }; +allow udev_t self:fd use; +allow udev_t self:fifo_file { read getattr lock ioctl write append }; +allow udev_t self:unix_stream_socket { listen accept }; +allow udev_t self:unix_dgram_socket sendto; +allow udev_t self:unix_stream_socket connectto; +allow udev_t self:shm { associate getattr setattr create destroy read write lock unix_read unix_write }; +allow udev_t self:sem { associate getattr setattr create destroy read write unix_read unix_write }; +allow udev_t self:msgq { associate getattr setattr create destroy read write enqueue unix_read unix_write }; +allow udev_t self:msg { send receive }; +allow udev_t self:rawip_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; + +allow udev_t udev_helper_exec_t:dir { read getattr lock search ioctl }; + +# read udev config +allow udev_t udev_etc_t:file { read getattr lock ioctl }; + +# create udev database in /dev/.udevdb +devices_create_dev_entry(udev_t,udev_tbl_t,file) +allow udev_t udev_tbl_t:file { create ioctl read getattr lock write setattr append link unlink rename }; + +kernel_read_system_state(udev_t) +kernel_get_core_interface_attributes(udev_t) +kernel_use_kernel_fd(udev_t) +kernel_read_device_sysctl(udev_t) +kernel_read_hotplug_sysctl(udev_t) +kernel_read_modprobe_sysctl(udev_t) +kernel_read_kernel_sysctl(udev_t) +kernel_read_hardware_state(udev_t) +kernel_get_selinuxfs_mount_point(udev_t) +kernel_validate_selinux_context(udev_t) +kernel_compute_selinux_av(udev_t) +kernel_compute_create(udev_t) +kernel_compute_relabel(udev_t) +kernel_compute_reachable_user_contexts(udev_t) + +files_read_runtime_system_config(udev_t) +files_read_general_system_config(udev_t) + +corecommands_execute_general_programs(udev_t) +corecommands_execute_system_programs(udev_t) +corecommands_execute_shell(udev_t) +domain_execute_all_entrypoint_programs(udev_t) + +# Security +selinux_read_config(udev_t) +selinux_read_default_contexts(udev_t) +#selinux_read_file_contexts(udev_t) + +modutils_insmod_transition(udev_t) + +logging_send_system_log_message(udev_t) + +optional_policy(`consoletype.te', ` +consoletype_execute(udev_t) +') + +ifdef(`TODO',` +allow udev_t var_log_t:dir search; +allow udev_t var_lock_t:dir search; +allow udev_t var_lock_t:file getattr; +# TODO: Need macro for reading daemon runtime data. +allow udev_t initrc_var_run_t:file r_file_perms; + +# Sysctl +# The following probably should be added to the kernel_read_device_sysctl() macro +#allow udev_t sysctl_dev_t:dir search; + +# Devices +allow udev_t device_t:dir { relabelfrom relabelto create_dir_perms }; +file_type_auto_trans(udev_t, device_t, udev_tbl_t, file) + +# Mount +allow udev_t mnt_t:dir search; + +allow udev_t devpts_t:dir { getattr search }; +allow udev_t sysadm_tty_device_t:chr_file { read write }; +allow udev_t device_t:sock_file create_file_perms; +allow udev_t device_t:lnk_file create_lnk_perms; +allow udev_t { device_t device_type }:{ chr_file blk_file } { relabelfrom relabelto create_file_perms }; + +# Dontaudits +dontaudit udev_t initrc_var_run_t:file write; +dontaudit udev_t staff_home_dir_t:dir search; +dontaudit udev_t file_t:dir search; +dontaudit udev_t domain:dir r_dir_perms; +dontaudit udev_t ttyfile:chr_file unlink; + +domain_auto_trans(initrc_t, udev_exec_t, udev_t) +domain_auto_trans(kernel_t, udev_exec_t, udev_t) +domain_auto_trans(udev_t, restorecon_exec_t, restorecon_t) +domain_auto_trans(udev_t, ifconfig_exec_t, ifconfig_t) + +allow udev_t kernel_t:unix_dgram_socket { sendto ioctl read write }; + +dbusd_client(system, udev) + +# Ifdefs +ifdef(`distro_redhat', ` +allow udev_t tmpfs_t:dir rw_dir_perms; +allow udev_t tmpfs_t:sock_file create_file_perms; +allow udev_t tmpfs_t:lnk_file create_lnk_perms; +allow udev_t tmpfs_t:{ chr_file blk_file } { relabelfrom relabelto create_file_perms }; +allow udev_t tmpfs_t:dir search; + +# for arping used for static IP addresses on PCMCIA ethernet +domain_auto_trans(udev_t, netutils_exec_t, netutils_t) +') dnl end ifdef distro_redhat + +ifdef(`hide_broken_symptoms', ` +dontaudit restorecon_t udev_t:unix_dgram_socket { read write }; +dontaudit ifconfig_t udev_t:unix_dgram_socket { read write }; +') + +ifdef(`xdm.te', ` +allow udev_t xdm_var_run_t:file { getattr read }; +') + +ifdef(`hotplug.te', ` +r_dir_file(udev_t, hotplug_etc_t) +') + +ifdef(`pamconsole.te', ` +allow udev_t pam_var_console_t:dir search; +allow udev_t pam_var_console_t:file { getattr read }; +domain_auto_trans(udev_t, pam_console_exec_t, pam_console_t) +') + +ifdef(`dhcpc.te', ` +domain_auto_trans(udev_t, dhcpc_exec_t, dhcpc_t) +') +') dnl endif TODO