Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c18df654 authored by Anirudh Gupta's avatar Anirudh Gupta Committed by Rohit Sekhar
Browse files

safetynet: Set shipping level to 32 for devices >=33 

If ro.product.first_api_level is 33, its forced to use HW attestation even though the safteynet checker app shows BASIC
setting it to 32 allows for software attestation and passing CTS

Change-Id: Ie7326eaac48424cdea3d9633ebe13c65053ef6c1
parent 101d4aa8

core/java/com/android/internal/safetynet/SafetyNetHooks.java

+18 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ import java.util.Arrays; 


import android.app.Application;

import android.os.Build;

import android.os.Build.VERSION;

import android.util.Log;



public final class SafetyNetHooks {
@@ -44,6 +45,22 @@ public final class SafetyNetHooks { 
        }

    }



    private static void setVersionField(String key, Integer value) {

        try {

            // Unlock

            Field field = Build.VERSION.class.getDeclaredField(key);

            field.setAccessible(true);



            // Edit

            field.set(null, value);



            // Lock

            field.setAccessible(false);

        } catch (NoSuchFieldException | IllegalAccessException e) {

            Log.e(TAG, "Failed to spoof Build." + key, e);

        }

    }



    public static void init(Application app) {

        if (GMS_PACKAGE_NAME.equals(app.getPackageName())) {

            sIsGms = true;
@@ -51,6 +68,7 @@ public final class SafetyNetHooks { 
            setBuildField("DEVICE", SPOOFED_DEVICE_PRODUCT);

            setBuildField("PRODUCT", SPOOFED_DEVICE_PRODUCT);

            setBuildField("FINGERPRINT", SPOOFED_FINGERPRINT);

            setVersionField("DEVICE_INITIAL_SDK_INT", Build.VERSION_CODES.S);

        }

    }