# mtectrl is a tool to request MTE (Memory Tagging Extensions) from the bootloader. type mtectrl, domain, coredomain; type mtectrl_exec, system_file_type, exec_type, file_type; init_daemon_domain(mtectrl) # to set the sys prop to match the bootloader message state. set_prop(mtectrl, arm64_memtag_prop) # mtectrl communicates the request to the bootloader via the misc partition. # needs to write to update the request in misc partition, and read to sync # back to the property. allow mtectrl misc_block_device:blk_file rw_file_perms; allow mtectrl block_device:dir r_dir_perms; read_fstab(mtectrl) # bootloader_message tries to find the fstab in the device config path first, # but because we've already booted up we can use the ro.boot properties instead, # so we can just ignore the SELinux denial. dontaudit mtectrl sysfs_dt_firmware_android:dir search; dontaudit mtectrl vendor_property_type:file read;