| type mtk_hal_c2, domain; |
| type mtk_hal_c2_exec, exec_type, vendor_file_type, file_type; |
| |
| init_daemon_domain(mtk_hal_c2) |
| |
| # can route /dev/binder traffic to /dev/vndbinder |
| vndbinder_use(mtk_hal_c2) |
| |
| hal_server_domain(mtk_hal_c2, hal_codec2) |
| |
| # mediacodec may use an input surface from a different Codec2 or OMX service |
| hal_client_domain(mtk_hal_c2, hal_codec2) |
| |
| hal_client_domain(mtk_hal_c2, hal_allocator) |
| hal_client_domain(mtk_hal_c2, hal_graphics_allocator) |
| |
| allow mtk_hal_c2 gpu_device:chr_file rw_file_perms; |
| allow mtk_hal_c2 ion_device:chr_file rw_file_perms; |
| allow mtk_hal_c2 video_device:chr_file rw_file_perms; |
| allow mtk_hal_c2 video_device:dir search; |
| |
| crash_dump_fallback(mtk_hal_c2) |
| |
| # mediacodec should never execute any executable without a domain transition |
| neverallow mtk_hal_c2 { 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 mtk_hal_c2 domain:{ tcp_socket udp_socket rawip_socket } *; |
| |
| #============= mtk_hal_c2 ============== |
| allow mtk_hal_c2 proc_ged:file rw_file_perms; |
| allowxperm mtk_hal_c2 proc_ged:file ioctl { proc_ged_ioctls }; |
| allow mtk_hal_c2 gpu_device:dir search; |
| allow mtk_hal_c2 mtk_cmdq_device:chr_file r_file_perms; |
| hal_client_domain(mtk_hal_c2, hal_mtk_pq) |
| allow mtk_hal_c2 vcodec_file:dir w_dir_perms; |
| allow mtk_hal_c2 vcodec_file:file create_file_perms; |
| allow mtk_hal_c2 mtk_mdp_device:chr_file r_file_perms; |
| allow mtk_hal_c2 mtk_mdp_sync_device:chr_file r_file_perms; |
| allow mtk_hal_c2 mtk_fmt_sync_device:chr_file r_file_perms_no_map; |
| allow mtk_hal_c2 mtk_fmt_device:chr_file rw_file_perms_no_map; |
| allow mtk_hal_c2 proc_meminfo:file r_file_perms; |
| dontaudit mtk_hal_c2 vcodec_file:file ioctl; |
| |
| #============= mtk_hal_c2 for legacy vcodec ============== |
| allow mtk_hal_c2 tmpfs:dir search; |
| allow mtk_hal_c2 Vcodec_device:chr_file rw_file_perms; |
| allow mtk_hal_c2 MTK_SMI_device:chr_file r_file_perms; |
| allow mtk_hal_c2 sysfs_concurrency_scenario:file rw_file_perms; |
| allow mtk_hal_c2 sysfs_concurrency_scenario:dir search; |
| |
| #============= mtk_hal_c2 for dmabuf heap ============== |
| allow mtk_hal_c2 dmabuf_system_heap_device:chr_file r_file_perms; |
| allow mtk_hal_c2 dmabuf_system_secure_heap_device:chr_file r_file_perms; |
| |
| #============= mtk_hal_c2 for log properties ============== |
| get_prop(mtk_hal_c2, vendor_mtk_c2_log_prop) |
| |
| #============= mtk_hal_c2 for power hal ============== |
| hal_client_domain(mtk_hal_c2, hal_power) |