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Configure Edge TPU DBA HAL sepolicy.

Browse source 
Bug: 245792277
Test: edgetpu_dba_hal_test
Change-Id: I567961327e00b728b1d188e07b6ae3f10f42d847
This commit is contained in:
Xusong Wang 2022-05-13 16:02:06 -07:00
parent 03f471518a
commit d19e0dded9
5 changed files with 49 additions and 0 deletions
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38
edgetpu/edgetpu_dba_service.te Normal file
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@ -0,0 +1,38 @@
# EdgeTPU DBA service.
type edgetpu_dba_server, domain;
type edgetpu_dba_server_exec, exec_type, vendor_file_type, file_type;
init_daemon_domain(edgetpu_dba_server)
# The vendor service will use binder calls.
binder_use(edgetpu_dba_server);
# The vendor service will serve a binder service.
binder_service(edgetpu_dba_server);
# EdgeTPU DBA service to register the service to service_manager.
add_service(edgetpu_dba_server, edgetpu_dba_service);
# Allow EdgeTPU DBA service to look for TPU instance in /dev/edgetpu or /dev/edgetpu-soc.
allow edgetpu_dba_server edgetpu_device:chr_file rw_file_perms;
# Allow EdgeTPU DBA service to request power hints from the Power Service.
hal_client_domain(edgetpu_dba_server, hal_power)
# Allow EdgeTPU DBA service to access hardware buffers and ION memory.
allow edgetpu_dba_server hal_allocator:fd use;
allow edgetpu_dba_server hal_graphics_mapper_hwservice:hwservice_manager find;
allow edgetpu_dba_server hal_graphics_allocator:fd use;
allow edgetpu_dba_server gpu_device:chr_file rw_file_perms;
allow edgetpu_dba_server gpu_device:dir r_dir_perms;
allow edgetpu_dba_server ion_device:chr_file r_file_perms;
# Allow EdgeTPU DBA service to read the overcommit_memory info.
allow edgetpu_dba_server proc_overcommit_memory:file r_file_perms;
# Allow EdgeTPU DBA service to read the kernel version.
# This is done inside the InitGoogle.
allow edgetpu_dba_server proc_version:file r_file_perms;
# Allow EdgeTPU DBA service to send trace packets to Perfetto with SELinux enabled
# under userdebug builds.
userdebug_or_eng(`perfetto_producer(edgetpu_dba_server)')

5
edgetpu/file_contexts
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@ -25,3 +25,8 @@
# EdgeTPU metrics logging service.
/vendor/lib64/libmetrics_logger\.so u:object_r:same_process_hal_file:s0
# EdgeTPU DBA service
/vendor/bin/hw/com\.google\.edgetpu.dba-service u:object_r:edgetpu_dba_server_exec:s0
/vendor/lib64/com\.google\.edgetpu.dba-V1-ndk\.so u:object_r:same_process_hal_file:s0
/vendor/lib64/libedgetpu_dba_hal\.so u:object_r:same_process_hal_file:s0

3
edgetpu/priv_app.te
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@ -10,3 +10,6 @@ allow priv_app edgetpu_device:chr_file { getattr read write ioctl map };
# Allows privileged applications to access the PowerHAL.
hal_client_domain(priv_app, hal_power)
# Allows privileged applications to discover the EdgeTPU DBA service.
allow priv_app edgetpu_dba_service:service_manager find;

1
edgetpu/service.te
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@ -3,3 +3,4 @@ type edgetpu_app_service, service_manager_type;
type edgetpu_vendor_service, service_manager_type, hal_service_type;
type edgetpu_nnapi_service, app_api_service, service_manager_type;
type edgetpu_dba_service, app_api_service, service_manager_type;

2
edgetpu/service_contexts
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@ -5,3 +5,5 @@ com.google.edgetpu.IEdgeTpuVendorService/default u:object_r:edgetpu_ve
# TPU NNAPI Service
android.hardware.neuralnetworks.IDevice/google-edgetpu u:object_r:edgetpu_nnapi_service:s0
# EdgeTPU DBA Service
com.google.edgetpu.dba.IDevice/default u:object_r:edgetpu_dba_service:s0