Add GPS dynamic link library as service in android system

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Add GPS dynamic link library as service in android system

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Add GPS dynamic link library as service in android system

Symptoms

 

Customer want to add gps dynamic link library as service in android system,but can not be allowed by Android SE Policy.

Diagnosis

 

Customer didn't set the correct config file.

 

Solution

① Open the file android_build/device/fsl/imx8q/mek_8q/mek_8q.mk, add gnss service

 

# GNSS HAL PUALPRODUCT_PACKAGES += \android.hardware.gnss@1.0-impl \android.hardware.gnss@1.0-service

 

 

② Open the file android_build/device/fsl/imx8q/mek_8q/manifest.xml and add gnss hidl

 

  android.hardware.gnsshwbinder 1.0 IGnss default

 

 

③ Open the file android_build/device/fsl/imx8q/mek_8q/BoardConfig.mk, add

 

#GNSS PUALBOARD_HAS_GPS_HARDWARE := true

 

 

④ Open the file android_build/device/fsl/imx8q/mek_8q/ueventd.freescale.rc, add

 

/dev/ttyLP1 0660 system gps

 

 

 

Add Selinux permissions

 

 

Add in device/fsl/imx8q/sepolicy/system_server.te:

 

allow hal_gnss_default vndbinder_device:chr_file {read };

 

 

After adding the test, there are also permission issues such as write, open, etc., we add it all at once:

 

allow hal_gnss_default vndbinder_device:chr_file {open read write execute getattr create ioctl map};

Version history
Revision #:
1 of 1
Last update:
‎11-16-2020 06:47 AM
Updated by:
 
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