4ddaa3f080
... such as Cuttlefish (Cloud Android virtual device) which has a
DRM virtio-gpu based gralloc and (sometimes) DRM virtio-gpu based
rendering (when forwarding rendering commands to the host machine
with Mesa3D in the guest and virglrenderer on the host).
After this change is submitted, changes such as aosp/1997572 can
be submitted to removed sepolicy that is currently duplicated
across device/google/cuttlefish and device/linaro/dragonboard as
well.
Adds a sysfs_gpu type (existing replicated sysfs_gpu definitions
across several devices are removed in the attached topic). The
uses of `sysfs_gpu:file` comes from Mesa using libdrm's
`drmGetDevices2()` which calls into `drmParsePciDeviceInfo()` to
get vendor id, device id, version etc.
Ignore-AOSP-First: must be submitted in internal as a topic first to
avoid having duplicate definitions of sysfs_gpu
in projects that are only available in internal
Bug: b/161819018
Test: launch_cvd
Test: launch_cvd --gpu_mode=gfxstream
Change-Id: I4f7d4b0fb90bfeef72f94396ff0c5fe44d53510c
66 lines
3 KiB
Text
66 lines
3 KiB
Text
# mediatranscoding - daemon for transcoding video and image.
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type mediatranscoding_exec, system_file_type, exec_type, file_type;
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type mediatranscoding_tmpfs, file_type;
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typeattribute mediatranscoding coredomain;
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init_daemon_domain(mediatranscoding)
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tmpfs_domain(mediatranscoding)
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allow mediatranscoding appdomain_tmpfs:file { getattr map read write };
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binder_use(mediatranscoding)
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binder_call(mediatranscoding, binderservicedomain)
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binder_call(mediatranscoding, appdomain)
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binder_service(mediatranscoding)
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add_service(mediatranscoding, mediatranscoding_service)
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hal_client_domain(mediatranscoding, hal_graphics_allocator)
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hal_client_domain(mediatranscoding, hal_configstore)
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hal_client_domain(mediatranscoding, hal_omx)
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hal_client_domain(mediatranscoding, hal_codec2)
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hal_client_domain(mediatranscoding, hal_allocator)
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allow mediatranscoding mediaserver_service:service_manager find;
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allow mediatranscoding mediametrics_service:service_manager find;
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allow mediatranscoding mediaextractor_service:service_manager find;
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allow mediatranscoding package_native_service:service_manager find;
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allow mediatranscoding thermal_service:service_manager find;
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allow mediatranscoding system_server:fd use;
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allow mediatranscoding activity_service:service_manager find;
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# allow mediatranscoding service read/write permissions for file sources
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allow mediatranscoding sdcardfs:file { getattr read write };
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allow mediatranscoding media_rw_data_file:file { getattr read write };
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allow mediatranscoding apk_data_file:file { getattr read };
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allow mediatranscoding app_data_file:file { getattr read write };
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allow mediatranscoding shell_data_file:file { getattr read write };
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# allow mediatranscoding service write permission to statsd socket
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unix_socket_send(mediatranscoding, statsdw, statsd)
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# Allow mediatranscoding to access the DMA-BUF system heap
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allow mediatranscoding dmabuf_system_heap_device:chr_file r_file_perms;
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allow mediatranscoding gpu_device:chr_file rw_file_perms;
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allow mediatranscoding gpu_device:dir r_dir_perms;
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# Allow mediatranscoding service to access media-related system properties
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get_prop(mediatranscoding, media_config_prop)
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# mediatranscoding should never execute any executable without a
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# domain transition
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neverallow mediatranscoding { file_type fs_type }:file execute_no_trans;
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# The goal of the mediaserver split is to place media processing code into
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# restrictive sandboxes with limited responsibilities and thus limited
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# permissions. Example: Audioserver is only responsible for controlling audio
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# hardware and processing audio content. Cameraserver does the same for camera
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# hardware/content. Etc.
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#
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# Media processing code is inherently risky and thus should have limited
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# permissions and be isolated from the rest of the system and network.
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# Lengthier explanation here:
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# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
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neverallow mediatranscoding domain:{ udp_socket rawip_socket } *;
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neverallow mediatranscoding { domain userdebug_or_eng(`-su') }:tcp_socket *;
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