Application context when run C++ app in shell

[Nguyễn Trung Thành]

Hello,

I create an app in C++. I run it in shell however I cannot change context of the app. It run under u:r:su:s0 install my context

Result of ps -A -Z

u:r:su:s0                      root           2554   2552   15960   5516 0                   0 R TestApp

My sepolicy here:

type vendor_testapp, domain;

type vendor_testapp_exec, exec_type, vendor_file_type, file_type;

init_daemon_domain(vendor_testapp)

in file_contexts

/vendor/bin/TestApp     u:object_r:vendor_testapp_exec:s0

Anyone can help me?

Regards,

Thanh

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[Glenn Kasten]

Can you please confirm: did you use NDK to create this app?

If so can you please a short code snippet?

On Thursday, October 15, 2020 at 9:26:30 AM UTC-7, Nguyễn Trung Thành wrote:

Hello,

I create an app in C++. I run it in shell however I cannot change context of the app. It run under u:r:su:s0 install my context

Result of ps -A -Z

u:r:su:s0                      root           2554   2552   15960   5516 0                   0 R TestApp

My sepolicy here:

type vendor_testapp, domain;

type vendor_testapp_exec, exec_type, vendor_file_type, file_type;

init_daemon_domain(vendor_testapp)

in file_contexts

/vendor/bin/TestApp     u:object_r:vendor_testapp_exec:s0

Anyone can help me?

Regards,

Thanh

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[Nguyễn Trung Thành]

I write C++ inside AOSP source code. It is simple code to play with IVehicle

main.c

#define LOG_TAG "Test app"

#include <android/hardware/automotive/vehicle/2.0/IVehicle.h>

#include <android/hardware/automotive/vehicle/2.0/types.h>

#include <hidl/Status.h>

#include <hidl/LegacySupport.h>

#include <utils/misc.h>

#include <utils/Log.h>

#include <stdio.h>

#include <string.h>

using android::hardware::automotive::vehicle::V2_0::VehiclePropValue;

using android::sp;

using android::hardware::hidl_vec;

using namespace std;

using android::hardware::automotive::vehicle::V2_0::IVehicle;

int main(int argc, char** argv) {

size_t pos = 0;

android::sp<IVehicle> ser = IVehicle::getService();

ser->set(propValues);

return 0;

}

Android.bp

cc_binary {

    name: "TestApp",

    defaults: ["hidl_defaults"],

    //proprietary: true,

    vendor: true,

    srcs: ["main.cpp"],

 

    shared_libs: [

        "android.hardware.automotive.vehicle@2.0",

        "libhidlbase",

        "liblog",

        "libutils",

    ],

}

On Thursday, October 15, 2020 at 11:34:19 PM UTC+7 Glenn Kasten wrote:

Can you please confirm: did you use NDK to create this app?

If so can you please a short code snippet?

On Thursday, October 15, 2020 at 9:26:30 AM UTC-7, Nguyễn Trung Thành wrote:

Hello,

I create an app in C++. I run it in shell however I cannot change context of the app. It run under u:r:su:s0 install my context

Result of ps -A -Z

u:r:su:s0                      root           2554   2552   15960   5516 0                   0 R TestApp

My sepolicy here:

type vendor_testapp, domain;

type vendor_testapp_exec, exec_type, vendor_file_type, file_type;

init_daemon_domain(vendor_testapp)

in file_contexts

/vendor/bin/TestApp     u:object_r:vendor_testapp_exec:s0

Anyone can help me?

Regards,

Thanh

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