SEPolicy updates for adding native flag namespace(netd).

For experiment flag testing, we add a flag netd and have
SEPolicy updates.

Test:  add sepolicy, m -j, check GetServerConfigurableFlag function in netd
Bug:122050512
Change-Id: I21c844c277afc358085d80447f16e4c0d4eba5b3

private/compat/26.0/26.0.ignore.cil

@@ -39,6 +39,7 @@
     device_config_boot_count_prop
     device_config_reset_performed_prop
     device_config_flags_health_check_prop
+    device_config_netd_native_prop
     e2fs
     e2fs_exec
     exfat

private/compat/27.0/27.0.ignore.cil

@@ -37,6 +37,7 @@
     device_config_boot_count_prop
     device_config_reset_performed_prop
     device_config_flags_health_check_prop
+    device_config_netd_native_prop
     exfat
     exported2_config_prop
     exported2_default_prop

private/compat/28.0/28.0.ignore.cil

@@ -25,6 +25,7 @@
     dev_cpu_variant
     device_config_boot_count_prop
     device_config_flags_health_check_prop
+    device_config_netd_native_prop
     device_config_reset_performed_prop
     device_config_service
     face_service

private/property_contexts

@@ -170,6 +170,7 @@ persist.time.           u:object_r:time_prop:s0
 device_config.reset_performed           u:object_r:device_config_reset_performed_prop:s0
 persist.device_config.attempted_boot_count        u:object_r:device_config_boot_count_prop:s0
 persist.device_config.global_settings.native_flags_health_check_enabled u:object_r:device_config_flags_health_check_prop:s0
+persist.device_config.netd_native.           u:object_r:device_config_netd_native_prop:s0
 
 apexd.                  u:object_r:apexd_prop:s0
 persist.apexd.          u:object_r:apexd_prop:s0

private/system_server.te

@@ -581,6 +581,7 @@ set_prop(system_server, cppreopt_prop)
 # STOPSHIP: Remove the ability for system_server to set property
 # device_config_flags_health_check_prop before release. (b/119627143)
 set_prop(system_server, device_config_flags_health_check_prop)
+set_prop(system_server, device_config_netd_native_prop)
 
 # BootReceiver to read ro.boot.bootreason
 get_prop(system_server, bootloader_boot_reason_prop)
@@ -931,6 +932,7 @@ neverallow {
   -flags_health_check
 } {
   device_config_flags_health_check_prop
+  device_config_netd_native_prop
 }:property_service set;
 
 # system_server should never be executing dex2oat. This is either

public/flags_heatlh_check.te

@@ -8,6 +8,7 @@ set_prop(flags_health_check, device_config_reset_performed_prop)
 # STOPSHIP: Remove the ability for flags_health_check to set property
 # device_config_flags_health_check_prop before release. (b/119627143)
 set_prop(flags_health_check, device_config_flags_health_check_prop)
+set_prop(flags_health_check, device_config_netd_native_prop)
 
 allow flags_health_check server_configurable_flags_data_file:dir rw_dir_perms;
 allow flags_health_check server_configurable_flags_data_file:file create_file_perms;

public/netd.te

@@ -111,6 +111,7 @@ allow netd self:netlink_xfrm_socket { create_socket_perms_no_ioctl nlmsg_write n
 add_hwservice(netd, system_net_netd_hwservice)
 hwbinder_use(netd)
 get_prop(netd, hwservicemanager_prop)
+get_prop(netd, device_config_netd_native_prop)
 
 ###
 ### Neverallow rules

public/property.te

@@ -31,6 +31,7 @@ type default_prop, property_type, core_property_type;
 type device_config_boot_count_prop, property_type;
 type device_config_reset_performed_prop, property_type;
 type device_config_flags_health_check_prop, property_type;
+type device_config_netd_native_prop, property_type;
 type device_logging_prop, property_type;
 type dhcp_prop, property_type, core_property_type;
 type dumpstate_options_prop, property_type;
@@ -400,6 +401,7 @@ compatible_property_only(`
     -device_config_reset_performed_prop
     -device_config_boot_count_prop
     -device_config_flags_health_check_prop
+    -device_config_netd_native_prop
     -heapprofd_enabled_prop
     -heapprofd_prop
     -hwservicemanager_prop

public/vendor_init.te

@@ -177,6 +177,7 @@ not_compatible_property(`
       -device_config_boot_count_prop
       -device_config_reset_performed_prop
       -device_config_flags_health_check_prop
+      -device_config_netd_native_prop
       -restorecon_prop
       -netd_stable_secret_prop
       -firstboot_prop