Adding labeling for vendor security patch prop am: 5cac1aa9

am: ad3602d2

Test: Vendor security patch prop is properly labeled
Bug: 76428542
Change-Id: I034f2f2c9eab3667cfa92ea41b4b5f4afa1c7df7
Merged-In: I034f2f2c9eab3667cfa92ea41b4b5f4afa1c7df7
(cherry picked from commit 15a9fbc2)

private/compat/26.0/26.0.ignore.cil

@@ -120,6 +120,7 @@
     untrusted_app_all_devpts
     update_engine_log_data_file
     vendor_default_prop
+    vendor_security_patch_level_prop
     usbd
     usbd_exec
     usbd_tmpfs

private/compat/27.0/27.0.ignore.cil

@@ -102,6 +102,7 @@
     usbd_tmpfs
     vendor_default_prop
     vendor_init
+    vendor_security_patch_level_prop
     vendor_shell
     vold_metadata_file
     vold_prepare_subdirs

public/property.te

@@ -55,6 +55,7 @@ type traced_enabled_prop, property_type;
 type vold_prop, property_type, core_property_type;
 type wifi_log_prop, property_type, log_property_type;
 type wifi_prop, property_type;
+type vendor_security_patch_level_prop, property_type;
 
 # Properties for whitelisting
 type exported_bluetooth_prop, property_type;

public/property_contexts

@@ -107,6 +107,7 @@ ro.telephony.default_cdma_sub u:object_r:exported3_default_prop:s0 exact int
 ro.telephony.default_network u:object_r:exported3_default_prop:s0 exact int
 ro.url.legal u:object_r:exported3_default_prop:s0 exact string
 ro.url.legal.android_privacy u:object_r:exported3_default_prop:s0 exact string
+ro.vendor.build.security_patch u:object_r:vendor_security_patch_level_prop:s0 exact string
 ro.zygote u:object_r:exported3_default_prop:s0 exact string
 sendbug.preferred.domain u:object_r:exported3_default_prop:s0 exact string
 sys.usb.controller u:object_r:exported2_system_prop:s0 exact string

public/shell.te

@@ -84,6 +84,9 @@ userdebug_or_eng(`
 # Read device's serial number from system properties
 get_prop(shell, serialno_prop)
 
+# Allow shell to read the vendor security patch level for CTS
+get_prop(shell, vendor_security_patch_level_prop)
+
 # Read state of logging-related properties
 get_prop(shell, device_logging_prop)
 

public/vendor_init.te

@@ -190,6 +190,7 @@ set_prop(vendor_init, log_tag_prop)
 set_prop(vendor_init, log_prop)
 set_prop(vendor_init, serialno_prop)
 set_prop(vendor_init, vendor_default_prop)
+set_prop(vendor_init, vendor_security_patch_level_prop)
 set_prop(vendor_init, wifi_log_prop)
 
 get_prop(vendor_init, exported2_radio_prop)