selinux-policy/policy/modules/services/virt.te

policy_module(virt, 1.4.0)

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

## <desc>
## <p>
## Allow virt to use serial/parallell communication ports
## </p>
## </desc>
gen_tunable(virt_use_comm, false)

## <desc>
## <p>
## Allow virt to read fuse files
## </p>
## </desc>
gen_tunable(virt_use_fusefs, false)

## <desc>
## <p>
## Allow virt to manage nfs files
## </p>
## </desc>
gen_tunable(virt_use_nfs, false)

## <desc>
## <p>
## Allow virt to manage cifs files
## </p>
## </desc>
gen_tunable(virt_use_samba, false)

## <desc>
## <p>
## Allow virt to manage device configuration, (pci)
## </p>
## </desc>
gen_tunable(virt_use_sysfs, false)

## <desc>
## <p>
## Allow virt to use usb devices
## </p>
## </desc>
gen_tunable(virt_use_usb, true)

virt_domain_template(svirt)
role system_r types svirt_t;

type svirt_cache_t;
files_type(svirt_cache_t)

attribute virt_domain;
attribute virt_image_type;

type virt_etc_t;
files_config_file(virt_etc_t)

type virt_etc_rw_t;
files_type(virt_etc_rw_t)

# virt Image files
type virt_image_t; # customizable
virt_image(virt_image_t)

# virt Image files
type virt_content_t; # customizable
virt_image(virt_content_t)
userdom_user_home_content(virt_content_t)

type virt_log_t;
logging_log_file(virt_log_t)

type virt_var_run_t;
files_pid_file(virt_var_run_t)

type virt_var_lib_t;
files_type(virt_var_lib_t)

type virtd_t;
type virtd_exec_t;
init_daemon_domain(virtd_t, virtd_exec_t)
domain_obj_id_change_exemption(virtd_t)
domain_subj_id_change_exemption(virtd_t)

type virtd_initrc_exec_t;
init_script_file(virtd_initrc_exec_t)

ifdef(`enable_mcs',`
	init_ranged_daemon_domain(virtd_t, virtd_exec_t, s0 - mcs_systemhigh)
')

ifdef(`enable_mls',`
	init_ranged_daemon_domain(virtd_t, virtd_exec_t, s0 - mls_systemhigh)
')

########################################
#
# svirt local policy
#

allow svirt_t self:udp_socket create_socket_perms;

manage_dirs_pattern(svirt_t, svirt_cache_t, svirt_cache_t)
manage_files_pattern(svirt_t, svirt_cache_t, svirt_cache_t)
files_var_filetrans(svirt_t, svirt_cache_t, { file dir })

read_lnk_files_pattern(svirt_t, virt_image_t, virt_image_t)

allow svirt_t svirt_image_t:dir search_dir_perms;
manage_dirs_pattern(svirt_t, svirt_image_t, svirt_image_t)
manage_files_pattern(svirt_t, svirt_image_t, svirt_image_t)
fs_hugetlbfs_filetrans(svirt_t, svirt_image_t, file)

list_dirs_pattern(svirt_t, virt_content_t, virt_content_t)
read_files_pattern(svirt_t, virt_content_t, virt_content_t)
dontaudit svirt_t virt_content_t:file write_file_perms;
dontaudit svirt_t virt_content_t:dir write;

corenet_udp_sendrecv_generic_if(svirt_t)
corenet_udp_sendrecv_generic_node(svirt_t)
corenet_udp_sendrecv_all_ports(svirt_t)
corenet_udp_bind_generic_node(svirt_t)
corenet_udp_bind_all_ports(svirt_t)
corenet_tcp_bind_all_ports(svirt_t)
corenet_tcp_connect_all_ports(svirt_t)

dev_list_sysfs(svirt_t)

userdom_search_user_home_content(svirt_t)
userdom_read_user_home_content_symlinks(svirt_t)
userdom_read_all_users_state(svirt_t)

tunable_policy(`virt_use_comm',`
	term_use_unallocated_ttys(svirt_t)
	dev_rw_printer(svirt_t)
')

tunable_policy(`virt_use_fusefs',`
	fs_read_fusefs_files(svirt_t)
	fs_read_fusefs_symlinks(svirt_t)
')

tunable_policy(`virt_use_nfs',`
	fs_manage_nfs_dirs(svirt_t)
	fs_manage_nfs_files(svirt_t)
')

tunable_policy(`virt_use_samba',`
	fs_manage_cifs_dirs(svirt_t)
	fs_manage_cifs_files(svirt_t)
')

tunable_policy(`virt_use_sysfs',`
	dev_rw_sysfs(svirt_t)
')

tunable_policy(`virt_use_usb',`
	dev_rw_usbfs(svirt_t)
	fs_manage_dos_dirs(svirt_t)
	fs_manage_dos_files(svirt_t)
')

optional_policy(`
	xen_rw_image_files(svirt_t)
')

########################################
#
# virtd local policy
#

allow virtd_t self:capability { chown dac_override fowner ipc_lock kill mknod net_admin net_raw setpcap setuid setgid sys_admin sys_nice sys_ptrace };
allow virtd_t self:process { getcap getsched setcap sigkill signal signull execmem setexec setfscreate setsched };

allow virtd_t self:fifo_file rw_fifo_file_perms;
allow virtd_t self:unix_stream_socket create_stream_socket_perms;
allow virtd_t self:tcp_socket create_stream_socket_perms;
allow virtd_t self:tun_socket create_socket_perms;
allow virtd_t self:netlink_kobject_uevent_socket create_socket_perms;

manage_dirs_pattern(virtd_t, svirt_cache_t, svirt_cache_t)
manage_files_pattern(virtd_t, svirt_cache_t, svirt_cache_t)

manage_dirs_pattern(virtd_t, virt_content_t, virt_content_t)
manage_files_pattern(virtd_t, virt_content_t, virt_content_t)

allow virtd_t virt_domain:process { getattr getsched setsched transition signal signull sigkill };

read_files_pattern(virtd_t, virt_etc_t, virt_etc_t)
read_lnk_files_pattern(virtd_t, virt_etc_t, virt_etc_t)

manage_dirs_pattern(virtd_t, virt_etc_rw_t, virt_etc_rw_t)
manage_files_pattern(virtd_t, virt_etc_rw_t, virt_etc_rw_t)
manage_lnk_files_pattern(virtd_t, virt_etc_rw_t, virt_etc_rw_t)
filetrans_pattern(virtd_t, virt_etc_t, virt_etc_rw_t, dir)

manage_files_pattern(virtd_t, virt_image_type, virt_image_type)
manage_blk_files_pattern(virtd_t, virt_image_type, virt_image_type)
allow virtd_t virt_image_type:file { relabelfrom relabelto };
allow virtd_t virt_image_type:blk_file { relabelfrom relabelto };

manage_dirs_pattern(virtd_t, virt_log_t, virt_log_t)
manage_files_pattern(virtd_t, virt_log_t, virt_log_t)
logging_log_filetrans(virtd_t, virt_log_t, { file dir })

manage_dirs_pattern(virtd_t, virt_var_lib_t, virt_var_lib_t)
manage_files_pattern(virtd_t, virt_var_lib_t, virt_var_lib_t)
manage_sock_files_pattern(virtd_t, virt_var_lib_t, virt_var_lib_t)
files_var_lib_filetrans(virtd_t, virt_var_lib_t, { file dir })

manage_dirs_pattern(virtd_t, virt_var_run_t, virt_var_run_t)
manage_files_pattern(virtd_t, virt_var_run_t, virt_var_run_t)
manage_sock_files_pattern(virtd_t, virt_var_run_t, virt_var_run_t)
files_pid_filetrans(virtd_t, virt_var_run_t, { file dir })

kernel_read_system_state(virtd_t)
kernel_read_network_state(virtd_t)
kernel_rw_net_sysctls(virtd_t)
kernel_request_load_module(virtd_t)
kernel_search_debugfs(virtd_t)

corecmd_exec_bin(virtd_t)
corecmd_exec_shell(virtd_t)

corenet_all_recvfrom_unlabeled(virtd_t)
corenet_all_recvfrom_netlabel(virtd_t)
corenet_tcp_sendrecv_generic_if(virtd_t)
corenet_tcp_sendrecv_generic_node(virtd_t)
corenet_tcp_sendrecv_all_ports(virtd_t)
corenet_tcp_bind_generic_node(virtd_t)
corenet_tcp_bind_virt_port(virtd_t)
corenet_tcp_bind_vnc_port(virtd_t)
corenet_tcp_connect_vnc_port(virtd_t)
corenet_tcp_connect_soundd_port(virtd_t)
corenet_rw_tun_tap_dev(virtd_t)

dev_rw_sysfs(virtd_t)
dev_read_rand(virtd_t)
dev_rw_kvm(virtd_t)
dev_getattr_all_chr_files(virtd_t)
dev_rw_mtrr(virtd_t)

# Init script handling
domain_use_interactive_fds(virtd_t)
domain_read_all_domains_state(virtd_t)

files_read_usr_files(virtd_t)
files_read_etc_files(virtd_t)
files_read_etc_runtime_files(virtd_t)
files_search_all(virtd_t)
files_read_kernel_modules(virtd_t)
files_read_usr_src_files(virtd_t)
files_manage_etc_files(virtd_t)

fs_list_auto_mountpoints(virtd_t)
fs_getattr_xattr_fs(virtd_t)
fs_rw_anon_inodefs_files(virtd_t)
fs_list_inotifyfs(virtd_t)
fs_manage_cgroup_dirs(virtd_t)
fs_rw_cgroup_files(virtd_t)

mcs_process_set_categories(virtd_t)

storage_manage_fixed_disk(virtd_t)
storage_relabel_fixed_disk(virtd_t)
storage_raw_write_removable_device(virtd_t)
storage_raw_read_removable_device(virtd_t)

term_getattr_pty_fs(virtd_t)
term_use_generic_ptys(virtd_t)
term_use_ptmx(virtd_t)

auth_use_nsswitch(virtd_t)

miscfiles_read_localization(virtd_t)
miscfiles_read_generic_certs(virtd_t)
miscfiles_read_hwdata(virtd_t)

modutils_read_module_deps(virtd_t)
modutils_read_module_config(virtd_t)
modutils_manage_module_config(virtd_t)

logging_send_syslog_msg(virtd_t)

seutil_read_default_contexts(virtd_t)

sysnet_domtrans_ifconfig(virtd_t)
sysnet_read_config(virtd_t)

userdom_getattr_all_users(virtd_t)
userdom_list_user_home_content(virtd_t)
userdom_read_all_users_state(virtd_t)
userdom_read_user_home_content_files(virtd_t)

tunable_policy(`virt_use_nfs',`
	fs_manage_nfs_dirs(virtd_t)
	fs_manage_nfs_files(virtd_t)
	fs_read_nfs_symlinks(virtd_t)
')

tunable_policy(`virt_use_samba',`
	fs_manage_nfs_files(virtd_t)
	fs_manage_cifs_files(virtd_t)
	fs_read_cifs_symlinks(virtd_t)
')

optional_policy(`
	brctl_domtrans(virtd_t)
')

optional_policy(`
	dbus_system_bus_client(virtd_t)

	optional_policy(`
		avahi_dbus_chat(virtd_t)
	')

	optional_policy(`
		consolekit_dbus_chat(virtd_t)
	')

	optional_policy(`
		hal_dbus_chat(virtd_t)
	')
')

optional_policy(`
	dnsmasq_domtrans(virtd_t)
	dnsmasq_signal(virtd_t)
	dnsmasq_kill(virtd_t)
	dnsmasq_read_pid_files(virtd_t)
	dnsmasq_signull(virtd_t)
')

optional_policy(`
	iptables_domtrans(virtd_t)
	iptables_initrc_domtrans(virtd_t)

	# Manages /etc/sysconfig/system-config-firewall
	iptables_manage_config(virtd_t)
')

optional_policy(`
	kerberos_keytab_template(virtd, virtd_t)
')

optional_policy(`
	lvm_domtrans(virtd_t)
')

optional_policy(`
	policykit_dbus_chat(virtd_t)
	policykit_domtrans_auth(virtd_t)
	policykit_domtrans_resolve(virtd_t)
	policykit_read_lib(virtd_t)
')

optional_policy(`
	qemu_domtrans(virtd_t)
	qemu_read_state(virtd_t)
	qemu_signal(virtd_t)
	qemu_kill(virtd_t)
	qemu_setsched(virtd_t)
')

optional_policy(`
	sasl_connect(virtd_t)
')

optional_policy(`
	kernel_read_xen_state(virtd_t)
	kernel_write_xen_state(virtd_t)

	xen_stream_connect(virtd_t)
	xen_stream_connect_xenstore(virtd_t)
	xen_read_image_files(virtd_t)
')

optional_policy(`
	udev_domtrans(virtd_t)
	udev_read_db(virtd_t)
')

optional_policy(`
	unconfined_domain(virtd_t)
')

########################################
#
# virtual domains common policy
#

allow virt_domain self:capability { dac_read_search dac_override kill };
allow virt_domain self:process { execmem execstack signal getsched signull };
allow virt_domain self:fifo_file rw_file_perms;
allow virt_domain self:shm create_shm_perms;
allow virt_domain self:unix_stream_socket create_stream_socket_perms;
allow virt_domain self:unix_dgram_socket { create_socket_perms sendto };
allow virt_domain self:tcp_socket create_stream_socket_perms;

append_files_pattern(virt_domain, virt_log_t, virt_log_t)

append_files_pattern(virt_domain, virt_var_lib_t, virt_var_lib_t)

kernel_read_system_state(virt_domain)

corecmd_exec_bin(virt_domain)
corecmd_exec_shell(virt_domain)

corenet_all_recvfrom_unlabeled(virt_domain)
corenet_all_recvfrom_netlabel(virt_domain)
corenet_tcp_sendrecv_generic_if(virt_domain)
corenet_tcp_sendrecv_generic_node(virt_domain)
corenet_tcp_sendrecv_all_ports(virt_domain)
corenet_tcp_bind_generic_node(virt_domain)
corenet_tcp_bind_vnc_port(virt_domain)
corenet_rw_tun_tap_dev(virt_domain)
corenet_tcp_bind_virt_migration_port(virt_domain)
corenet_tcp_connect_virt_migration_port(virt_domain)

dev_read_rand(virt_domain)
dev_read_sound(virt_domain)
dev_read_urand(virt_domain)
dev_write_sound(virt_domain)
dev_rw_ksm(virt_domain)
dev_rw_kvm(virt_domain)
dev_rw_qemu(virt_domain)

domain_use_interactive_fds(virt_domain)

files_read_etc_files(virt_domain)
files_read_usr_files(virt_domain)
files_read_var_files(virt_domain)
files_search_all(virt_domain)

fs_getattr_tmpfs(virt_domain)
fs_rw_anon_inodefs_files(virt_domain)
fs_rw_tmpfs_files(virt_domain)

term_use_all_terms(virt_domain)
term_getattr_pty_fs(virt_domain)
term_use_generic_ptys(virt_domain)
term_use_ptmx(virt_domain)

auth_use_nsswitch(virt_domain)

logging_send_syslog_msg(virt_domain)

miscfiles_read_localization(virt_domain)

optional_policy(`
	ptchown_domtrans(virt_domain)
')

optional_policy(`
	virt_read_config(virt_domain)
	virt_read_lib_files(virt_domain)
	virt_read_content(virt_domain)
	virt_stream_connect(virt_domain)
')