type mediacodec_samsung, domain; type mediacodec_samsung_exec, vendor_file_type, exec_type, file_type; init_daemon_domain(mediacodec_samsung) hal_server_domain(mediacodec_samsung, hal_codec2) add_service(mediacodec_samsung, eco_service) vndbinder_use(mediacodec_samsung) allow mediacodec_samsung video_device:chr_file rw_file_perms; allow mediacodec_samsung dmabuf_system_heap_device:chr_file r_file_perms; allow mediacodec_samsung gpu_device:chr_file rw_file_perms; allow mediacodec_samsung sysfs_mfc:file r_file_perms; allow mediacodec_samsung sysfs_mfc:dir r_dir_perms; allow mediacodec_samsung sysfs_force_empty:dir r_file_perms; allow mediacodec_samsung sysfs_force_empty:file rw_file_perms; # can use graphics allocator hal_client_domain(mediacodec_samsung, hal_graphics_allocator) binder_call(mediacodec_samsung, hal_camera_default) crash_dump_fallback(mediacodec_samsung) # mediacodec_samsung should never execute any executable without a domain transition neverallow mediacodec_samsung { file_type fs_type }:file execute_no_trans; # Media processing code is inherently risky and thus should have limited # permissions and be isolated from the rest of the system and network. # Lengthier explanation here: # https://android-developers.googleblog.com/2016/05/hardening-media-stack.html neverallow mediacodec_samsung domain:{ udp_socket rawip_socket } *; neverallow mediacodec_samsung { domain userdebug_or_eng(`-su') }:tcp_socket *; userdebug_or_eng(` allow mediacodec_samsung vendor_media_data_file:dir rw_dir_perms; allow mediacodec_samsung vendor_media_data_file:file create_file_perms; ')