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

policy_module(virt, 1.4.0)

########################################
#
# Declarations
#
attribute virsh_transition_domain;

## <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;

attribute virt_domain;
attribute virt_image_type;

type virt_cache_t alias svirt_cache_t;
files_type(virt_cache_t)

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)
files_mountpoint(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_tmp_t;
files_tmp_file(virt_tmp_t)

type virt_log_t;
logging_log_file(virt_log_t)
mls_trusted_object(virt_log_t)

type virt_var_run_t;
files_pid_file(virt_var_run_t)

type virt_var_lib_t;
files_mountpoint(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)

type qemu_var_run_t;
typealias qemu_var_run_t alias svirt_var_run_t;
files_pid_file(qemu_var_run_t)
mls_trusted_object(qemu_var_run_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;

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)
manage_fifo_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)
	fs_manage_nfs_named_sockets(svirt_t)
	fs_read_nfs_symlinks(svirt_t)
')

tunable_policy(`virt_use_samba',`
	fs_manage_cifs_dirs(svirt_t)
	fs_manage_cifs_files(svirt_t)
	fs_manage_cifs_named_sockets(svirt_t)
	fs_read_cifs_symlinks(virtd_t)
')

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

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

optional_policy(`
	xen_rw_image_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 setsockcreate 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:rawip_socket create_socket_perms;
allow virtd_t self:netlink_kobject_uevent_socket create_socket_perms;

manage_dirs_pattern(virtd_t, virt_cache_t, virt_cache_t)
manage_files_pattern(virtd_t, virt_cache_t, virt_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 };

allow virtd_t qemu_var_run_t:file relabel_file_perms;
manage_dirs_pattern(virtd_t, qemu_var_run_t, qemu_var_run_t)
manage_files_pattern(virtd_t, qemu_var_run_t, qemu_var_run_t)
manage_sock_files_pattern(virtd_t, qemu_var_run_t, qemu_var_run_t)
stream_connect_pattern(virtd_t, qemu_var_run_t, qemu_var_run_t, virt_domain)

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)
manage_lnk_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_tmp_t, virt_tmp_t)
manage_files_pattern(virtd_t, virt_tmp_t, virt_tmp_t)
files_tmp_filetrans(virtd_t, virt_tmp_t, { file dir })
can_exec(virtd_t, virt_tmp_t)

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_read_kernel_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)
dev_rw_vhost(virtd_t)

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

files_read_usr_files(virtd_t)
files_read_etc_files(virtd_t)
files_read_usr_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_relabelto_system_conf_files(virtd_t)
files_relabelfrom_system_conf_files(virtd_t)

# Manages /etc/sysconfig/system-config-firewall
files_manage_system_conf_files(virtd_t)
files_manage_system_conf_files(virtd_t)
files_etc_filetrans_system_conf(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)
fs_manage_hugetlbfs_dirs(virtd_t)
fs_rw_hugetlbfs_files(virtd_t)

mls_fd_share_all_levels(virtd_t)
mls_file_read_to_clearance(virtd_t)
mls_file_write_to_clearance(virtd_t)
mls_process_write_to_clearance(virtd_t)
mls_net_write_within_range(virtd_t)
mls_socket_write_to_clearance(virtd_t)
mls_socket_read_to_clearance(virtd_t)
mls_rangetrans_source(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_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)

selinux_validate_context(virtd_t)

seutil_read_config(virtd_t)
seutil_read_default_contexts(virtd_t)
seutil_read_file_contexts(virtd_t)

sysnet_domtrans_ifconfig(virtd_t)
sysnet_read_config(virtd_t)

userdom_list_admin_dir(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)
userdom_relabel_user_home_files(virtd_t)
userdom_setattr_user_home_content_files(virtd_t)

consoletype_exec(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)
	qemu_entry_type(virt_domain)
')

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;

manage_dirs_pattern(virt_domain, virt_cache_t, virt_cache_t)
manage_files_pattern(virt_domain, virt_cache_t, virt_cache_t)
files_var_filetrans(virt_domain, virt_cache_t, { file dir })

manage_dirs_pattern(virt_domain, qemu_var_run_t, qemu_var_run_t)
manage_files_pattern(virt_domain, qemu_var_run_t, qemu_var_run_t)
manage_sock_files_pattern(virt_domain, qemu_var_run_t, qemu_var_run_t)
manage_lnk_files_pattern(virt_domain, qemu_var_run_t, qemu_var_run_t)
files_pid_filetrans(virt_domain, qemu_var_run_t, { dir file })
stream_connect_pattern(virt_domain, qemu_var_run_t, qemu_var_run_t, virtd_t)

dontaudit virtd_t virt_domain:process  { siginh noatsecure rlimitinh };

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_generic_symlinks(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)
dev_rw_vhost(virt_domain)

domain_use_interactive_fds(virt_domain)

files_read_etc_files(virt_domain)
files_read_mnt_symlinks(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)
fs_getattr_hugetlbfs(virt_domain)

# I think we need these for now.
miscfiles_read_public_files(virt_domain)
storage_raw_read_removable_device(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(`
	pulseaudio_dontaudit_exec(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)
')

########################################
#
# xm local policy
#
type virsh_t;
type virsh_exec_t;
domain_type(virsh_t)
init_system_domain(virsh_t, virsh_exec_t)
typealias virsh_t alias xm_t;
typealias virsh_exec_t alias xm_exec_t;

allow virsh_t self:capability { dac_override ipc_lock sys_tty_config };
allow virsh_t self:process { getcap getsched setcap signal };

# internal communication is often done using fifo and unix sockets.
allow virsh_t self:fifo_file rw_fifo_file_perms;
allow virsh_t self:unix_stream_socket { create_stream_socket_perms connectto };
allow virsh_t self:tcp_socket create_stream_socket_perms;

manage_files_pattern(virsh_t, virt_image_type, virt_image_type)
manage_blk_files_pattern(virsh_t, virt_image_type, virt_image_type)
manage_lnk_files_pattern(virsh_t, virt_image_type, virt_image_type)

dontaudit virsh_t virt_var_lib_t:file read_inherited_file_perms;

kernel_read_system_state(virsh_t)
kernel_read_network_state(virsh_t)
kernel_read_kernel_sysctls(virsh_t)
kernel_read_sysctl(virsh_t)
kernel_read_xen_state(virsh_t)
kernel_write_xen_state(virsh_t)

corecmd_exec_bin(virsh_t)
corecmd_exec_shell(virsh_t)

corenet_tcp_sendrecv_generic_if(virsh_t)
corenet_tcp_sendrecv_generic_node(virsh_t)
corenet_tcp_connect_soundd_port(virsh_t)

dev_read_urand(virsh_t)
dev_read_sysfs(virsh_t)

files_read_etc_runtime_files(virsh_t)
files_read_usr_files(virsh_t)
files_list_mnt(virsh_t)
# Some common macros (you might be able to remove some)
files_read_etc_files(virsh_t)

fs_getattr_all_fs(virsh_t)
fs_manage_xenfs_dirs(virsh_t)
fs_manage_xenfs_files(virsh_t)
fs_search_auto_mountpoints(virsh_t)

storage_raw_read_fixed_disk(virsh_t)

term_use_all_terms(virsh_t)

init_stream_connect_script(virsh_t)
init_rw_script_stream_sockets(virsh_t)
init_use_fds(virsh_t)

miscfiles_read_localization(virsh_t)

sysnet_dns_name_resolve(virsh_t)

optional_policy(`
	xen_manage_image_dirs(virsh_t)
	xen_append_log(virsh_t)
	xen_stream_connect(virsh_t)
	xen_stream_connect_xenstore(virsh_t)
')

optional_policy(`
	dbus_system_bus_client(virsh_t)

	optional_policy(`
		hal_dbus_chat(virsh_t)
	')
')

optional_policy(`
	vhostmd_rw_tmpfs_files(virsh_t)
    	vhostmd_stream_connect(virsh_t)
	vhostmd_dontaudit_rw_stream_connect(virsh_t)
')

optional_policy(`
	virt_domtrans(virsh_t)
	virt_manage_images(virsh_t)
	virt_manage_config(virsh_t)
	virt_stream_connect(virsh_t)
')

optional_policy(`
	ssh_basic_client_template(virsh, virsh_t, system_r)

	kernel_read_xen_state(virsh_ssh_t)
	kernel_write_xen_state(virsh_ssh_t)

	dontaudit virsh_ssh_t virsh_transition_domain:fifo_file rw_inherited_fifo_file_perms;
	files_search_tmp(virsh_ssh_t)

	fs_manage_xenfs_dirs(virsh_ssh_t)
	fs_manage_xenfs_files(virsh_ssh_t)

	userdom_search_admin_dir(virsh_ssh_t)
')