| # cameraserver - camera daemon |
| type cameraserver, domain; |
| type cameraserver_exec, system_file_type, exec_type, file_type; |
| type cameraserver_tmpfs, file_type; |
| |
| binder_use(cameraserver) |
| binder_call(cameraserver, binderservicedomain) |
| binder_call(cameraserver, appdomain) |
| binder_service(cameraserver) |
| |
| hal_client_domain(cameraserver, hal_camera) |
| |
| hal_client_domain(cameraserver, hal_graphics_allocator) |
| |
| allow cameraserver ion_device:chr_file rw_file_perms; |
| allow cameraserver dmabuf_system_heap_device:chr_file r_file_perms; |
| |
| # Talk with graphics composer fences |
| allow cameraserver hal_graphics_composer:fd use; |
| |
| add_service(cameraserver, cameraserver_service) |
| add_service(cameraserver, fwk_camera_service) |
| add_hwservice(cameraserver, fwk_camera_hwservice) |
| |
| allow cameraserver activity_service:service_manager find; |
| allow cameraserver appops_service:service_manager find; |
| allow cameraserver audioserver_service:service_manager find; |
| allow cameraserver batterystats_service:service_manager find; |
| allow cameraserver cameraproxy_service:service_manager find; |
| allow cameraserver mediaserver_service:service_manager find; |
| allow cameraserver package_native_service:service_manager find; |
| allow cameraserver permission_checker_service:service_manager find; |
| allow cameraserver processinfo_service:service_manager find; |
| allow cameraserver scheduling_policy_service:service_manager find; |
| allow cameraserver sensor_privacy_service:service_manager find; |
| allow cameraserver surfaceflinger_service:service_manager find; |
| |
| allow cameraserver hidl_token_hwservice:hwservice_manager find; |
| allow cameraserver hal_camera_service:service_manager find; |
| allow cameraserver virtual_camera_service:service_manager find; |
| |
| # Allow to talk with surfaceflinger through unix stream socket |
| allow cameraserver surfaceflinger:unix_stream_socket { read write }; |
| |
| ### |
| ### neverallow rules |
| ### |
| |
| # cameraserver should never execute any executable without a |
| # domain transition |
| neverallow cameraserver { file_type fs_type }:file execute_no_trans; |
| |
| # The goal of the mediaserver split is to place media processing code into |
| # restrictive sandboxes with limited responsibilities and thus limited |
| # permissions. Example: Audioserver is only responsible for controlling audio |
| # hardware and processing audio content. Cameraserver does the same for camera |
| # hardware/content. Etc. |
| # |
| # 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 cameraserver domain:{ udp_socket rawip_socket } *; |
| neverallow cameraserver { domain userdebug_or_eng(`-su') }:tcp_socket *; |
| |
| # Allow shell commands from ADB for CTS testing/dumping |
| allow cameraserver adbd:fd use; |
| allow cameraserver adbd:unix_stream_socket { read write }; |
| allow cameraserver shell:fd use; |
| allow cameraserver shell:unix_stream_socket { read write }; |
| allow cameraserver shell:fifo_file { read write }; |
| |
| # Allow to talk with media codec |
| allow cameraserver mediametrics_service:service_manager find; |
| hal_client_domain(cameraserver, hal_codec2) |
| hal_client_domain(cameraserver, hal_omx) |
| hal_client_domain(cameraserver, hal_allocator) |
| |
| # Allow shell commands from ADB for CTS testing/dumping |
| userdebug_or_eng(` |
| allow cameraserver su:fd use; |
| allow cameraserver su:fifo_file { read write }; |
| allow cameraserver su:unix_stream_socket { read write }; |
| ') |