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Commit 9266fe32 authored by Howard Chen's avatar Howard Chen Committed by PO HUNG CHEN
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Add security patch level check in DSULoader 

There's an enforced check enabled in locked devices. It requires
the installed DSU to have a security patch level equal or higher
than the device. This CL adds the SPL check in the DSULoader.

Bug: 151790609
Test: Developer Settings -> DSULoader
Change-Id: Ifef4175e846f58d8033cf161d7fec8481dc0532b
parent 9ba7fa97

src/com/android/settings/development/DSULoader.java

+36 −2
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ import android.content.Intent; 
import android.net.Uri;

import android.os.Bundle;

import android.os.SystemProperties;

import android.text.TextUtils;

import android.util.Slog;

import android.view.LayoutInflater;

import android.view.View;
@@ -40,8 +41,11 @@ import java.io.IOException; 
import java.io.InputStream;

import java.net.MalformedURLException;

import java.net.URL;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Date;

import java.util.List;



import javax.net.ssl.HttpsURLConnection;
@@ -62,6 +66,7 @@ public class DSULoader extends ListActivity { 
    private static final String PROPERTY_KEY_OS = "ro.system.build.version.release";

    private static final String PROPERTY_KEY_VNDK = "ro.vndk.version";

    private static final String PROPERTY_KEY_LIST = "ro.vendor.dsu.list";

    private static final String PROPERTY_KEY_SPL = "ro.build.version.security_patch";

    private static final String DSU_LIST =

            "https://dl.google.com/developers/android/gsi/gsi-src.json";
@@ -121,7 +126,8 @@ public class DSULoader extends ListActivity { 
            mDsuList = dsuList;

        }



        private void fetch(URL url) throws IOException, JSONException, MalformedURLException {

        private void fetch(URL url)

                throws IOException, JSONException, MalformedURLException, ParseException {

            String content = readAll(url);

            JSONObject jsn = new JSONObject(content);

            // The include primitive is like below
@@ -195,6 +201,8 @@ public class DSULoader extends ListActivity { 
        private static final String OS_VERSION = "os_version";

        private static final String VNDK = "vndk";

        private static final String PUBKEY = "pubkey";

        private static final String SPL = "spl";

        private static final String SPL_FORMAT = "yyyy-MM-dd";

        private static final String TOS = "tos";



        String mName = null;
@@ -203,10 +211,11 @@ public class DSULoader extends ListActivity { 
        int mOsVersion = -1;

        int[] mVndk = null;

        String mPubKey = "";

        Date mSPL = null;

        URL mTosUrl = null;

        URL mUri;



        DSUPackage(JSONObject jsn) throws JSONException, MalformedURLException {

        DSUPackage(JSONObject jsn) throws JSONException, MalformedURLException, ParseException {

            Slog.i(TAG, "DSUPackage: " + jsn.toString());

            mName = jsn.getString(NAME);

            mDetails = jsn.getString(DETAILS);
@@ -228,6 +237,9 @@ public class DSULoader extends ListActivity { 
            if (jsn.has(TOS)) {

                mTosUrl = new URL(jsn.getString(TOS));

            }

            if (jsn.has(SPL)) {

                mSPL = new SimpleDateFormat(SPL_FORMAT).parse(jsn.getString(SPL));

            }

        }



        int dessertNumber(String s, int base) {
@@ -265,6 +277,18 @@ public class DSULoader extends ListActivity { 
            return cpu;

        }



        Date getDeviceSPL() {

            String spl = SystemProperties.get(PROPERTY_KEY_SPL);

            if (TextUtils.isEmpty(spl)) {

                return null;

            }

            try {

                return new SimpleDateFormat(SPL_FORMAT).parse(spl);

            } catch (ParseException e) {

                return null;

            }

        }



        boolean isSupported() {

            boolean supported = true;

            String cpu = getDeviceCpu();
@@ -301,6 +325,16 @@ public class DSULoader extends ListActivity { 
                    }

                }

            }

            if (mSPL != null) {

                Date spl = getDeviceSPL();

                if (spl == null) {

                    Slog.i(TAG, "Failed to getDeviceSPL");

                    supported = false;

                } else if (spl.getTime() > mSPL.getTime()) {

                    Slog.i(TAG, "Device SPL:" + spl.toString() + " > " + mSPL.toString());

                    supported = false;

                }

            }

            Slog.i(TAG, mName + " isSupported " + supported);

            return supported;

        }