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109 lines
3.6 KiB
109 lines
3.6 KiB
# surfaceflinger - display compositor service |
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typeattribute surfaceflinger coredomain; |
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type surfaceflinger_exec, exec_type, file_type; |
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init_daemon_domain(surfaceflinger) |
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typeattribute surfaceflinger mlstrustedsubject; |
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typeattribute surfaceflinger display_service_server; |
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read_runtime_log_tags(surfaceflinger) |
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# Perform HwBinder IPC. |
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hal_client_domain(surfaceflinger, hal_graphics_allocator) |
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hal_client_domain(surfaceflinger, hal_graphics_composer) |
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hal_client_domain(surfaceflinger, hal_configstore) |
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allow surfaceflinger hidl_token_hwservice:hwservice_manager find; |
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# Perform Binder IPC. |
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binder_use(surfaceflinger) |
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binder_call(surfaceflinger, binderservicedomain) |
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binder_call(surfaceflinger, appdomain) |
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binder_call(surfaceflinger, bootanim) |
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binder_service(surfaceflinger) |
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# Binder IPC to bu, presently runs in adbd domain. |
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binder_call(surfaceflinger, adbd) |
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# Read /proc/pid files for Binder clients. |
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r_dir_file(surfaceflinger, binderservicedomain) |
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r_dir_file(surfaceflinger, appdomain) |
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# Access the GPU. |
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allow surfaceflinger gpu_device:chr_file rw_file_perms; |
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# Access /dev/graphics/fb0. |
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allow surfaceflinger graphics_device:dir search; |
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allow surfaceflinger graphics_device:chr_file rw_file_perms; |
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# Access /dev/video1. |
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allow surfaceflinger video_device:dir r_dir_perms; |
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allow surfaceflinger video_device:chr_file rw_file_perms; |
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# Create and use netlink kobject uevent sockets. |
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allow surfaceflinger self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl; |
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# Set properties. |
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set_prop(surfaceflinger, system_prop) |
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set_prop(surfaceflinger, ctl_bootanim_prop) |
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# Use open files supplied by an app. |
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allow surfaceflinger appdomain:fd use; |
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allow surfaceflinger app_data_file:file { read write }; |
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# Use socket supplied by adbd, for cmd gpu vkjson etc. |
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allow surfaceflinger adbd:unix_stream_socket { read write getattr }; |
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# Allow a dumpstate triggered screenshot |
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binder_call(surfaceflinger, dumpstate) |
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binder_call(surfaceflinger, shell) |
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r_dir_file(surfaceflinger, dumpstate) |
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# Needed on some devices for playing DRM protected content, |
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# but seems expected and appropriate for all devices. |
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allow surfaceflinger tee_device:chr_file rw_file_perms; |
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# media.player service |
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add_service(surfaceflinger, gpu_service) |
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# do not use add_service() as hal_graphics_composer_default may be the |
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# provider as well |
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#add_service(surfaceflinger, surfaceflinger_service) |
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allow surfaceflinger surfaceflinger_service:service_manager { add find }; |
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allow surfaceflinger mediaserver_service:service_manager find; |
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allow surfaceflinger permission_service:service_manager find; |
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allow surfaceflinger power_service:service_manager find; |
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allow surfaceflinger vr_manager_service:service_manager find; |
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allow surfaceflinger window_service:service_manager find; |
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# allow self to set SCHED_FIFO |
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allow surfaceflinger self:capability sys_nice; |
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allow surfaceflinger proc_meminfo:file r_file_perms; |
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r_dir_file(surfaceflinger, cgroup) |
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r_dir_file(surfaceflinger, sysfs_type) |
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r_dir_file(surfaceflinger, system_file) |
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allow surfaceflinger tmpfs:dir r_dir_perms; |
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allow surfaceflinger system_server:fd use; |
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allow surfaceflinger ion_device:chr_file r_file_perms; |
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# pdx IPC |
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pdx_server(surfaceflinger, display_client) |
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pdx_server(surfaceflinger, display_manager) |
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pdx_server(surfaceflinger, display_screenshot) |
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pdx_server(surfaceflinger, display_vsync) |
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pdx_client(surfaceflinger, bufferhub_client) |
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pdx_client(surfaceflinger, performance_client) |
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### |
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### Neverallow rules |
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### |
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### surfaceflinger should NEVER do any of this |
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# Do not allow accessing SDcard files as unsafe ejection could |
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# cause the kernel to kill the process. |
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neverallow surfaceflinger sdcard_type:file rw_file_perms;
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