From 8b2a13cfe86fbfa0c7dd9f2afd3e886954d2c5c8 Mon Sep 17 00:00:00 2001
From: wenyifan <yifan.wen@eisgroup.com>
Date: Wed, 1 Nov 2023 17:32:14 +0800
Subject: [PATCH] =?UTF-8?q?=E9=80=82=E9=85=8DXiaomi=20HyperOS?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .idea/gradle.xml                              |  1 +
 .idea/misc.xml                                |  3 +-
 .../java/run/evan/hotspotip/MainHook.java     | 48 ++++++++++++-------
 app/src/main/res/values/array.xml             |  1 +
 4 files changed, 35 insertions(+), 18 deletions(-)

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index a2d7c21..6e5389e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -7,6 +7,7 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="Android Studio default JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 2a4d5b5..d85de58 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="temurin-11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/run/evan/hotspotip/MainHook.java b/app/src/main/java/run/evan/hotspotip/MainHook.java
index 4624a70..62413ff 100644
--- a/app/src/main/java/run/evan/hotspotip/MainHook.java
+++ b/app/src/main/java/run/evan/hotspotip/MainHook.java
@@ -1,9 +1,11 @@
 package run.evan.hotspotip;
 
 import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
 import de.robv.android.xposed.IXposedHookLoadPackage;
+import de.robv.android.xposed.XC_MethodHook;
 import de.robv.android.xposed.XC_MethodReplacement;
 import de.robv.android.xposed.XposedBridge;
 import de.robv.android.xposed.XposedHelpers;
@@ -13,27 +15,41 @@ public class MainHook implements IXposedHookLoadPackage {
     @Override
     public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {
         if (loadPackageParam.packageName.equals("com.android.networkstack.tethering.inprocess")) {
-            XposedBridge.log("Hotspot Ip init");
+            XposedBridge.log("Hotspot IP init process="+loadPackageParam.packageName);
             XposedHelpers.findAndHookMethod("com.android.networkstack.tethering.PrivateAddressCoordinator", loadPackageParam.classLoader, "requestDownstreamAddress", "android.net.ip.IpServer", boolean.class, new XC_MethodReplacement() {
                 @Override
                 protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {
-                    Class linkAddressClass = XposedHelpers.findClass("android.net.LinkAddress", loadPackageParam.classLoader);
-                    Constructor linkAddressConstructor = linkAddressClass.getConstructor(String.class);
-                    Class ipServerClass = XposedHelpers.findClass("android.net.ip.IpServer", loadPackageParam.classLoader);
-                    Method interfaceTypeMethod = ipServerClass.getDeclaredMethod("interfaceType");
-                    int iFaceType = (int) interfaceTypeMethod.invoke(methodHookParam.args[0]);
-                    switch (iFaceType) {
-                        case 3:
-                            return linkAddressConstructor.newInstance("192.168.49.1/24");
-                        case 0:
-                            return linkAddressConstructor.newInstance("192.168.6.1/24");
-                        case 1:
-                            return linkAddressConstructor.newInstance("192.168.7.1/24");
-                        default:
-                            return linkAddressConstructor.newInstance("192.168.8.1/24");
-                    }
+                    return buildPrivateAddressResponse(methodHookParam, loadPackageParam);
+                }
+            });
+        }
+
+        if (loadPackageParam.packageName.equals("com.android.networkstack.tethering")) {
+            XposedBridge.log("Hotspot IP init process="+loadPackageParam.packageName);
+            XposedHelpers.findAndHookMethod("com.android.networkstack.tethering.PrivateAddressCoordinator", loadPackageParam.classLoader, "requestDownstreamAddress", "android.net.ip.IpServer",int.class, boolean.class, new XC_MethodReplacement() {
+                @Override
+                protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {
+                    return buildPrivateAddressResponse(methodHookParam, loadPackageParam);
                 }
             });
         }
     }
+
+    private static Object buildPrivateAddressResponse(XC_MethodHook.MethodHookParam methodHookParam, XC_LoadPackage.LoadPackageParam loadPackageParam) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
+        Class linkAddressClass = XposedHelpers.findClass("android.net.LinkAddress", loadPackageParam.classLoader);
+        Constructor linkAddressConstructor = linkAddressClass.getConstructor(String.class);
+        Class ipServerClass = XposedHelpers.findClass("android.net.ip.IpServer", loadPackageParam.classLoader);
+        Method interfaceTypeMethod = ipServerClass.getDeclaredMethod("interfaceType");
+        int iFaceType = (int) interfaceTypeMethod.invoke(methodHookParam.args[0]);
+        switch (iFaceType) {
+            case 3:
+                return linkAddressConstructor.newInstance("192.168.49.1/24");
+            case 0:
+                return linkAddressConstructor.newInstance("192.168.6.1/24");
+            case 1:
+                return linkAddressConstructor.newInstance("192.168.7.1/24");
+            default:
+                return linkAddressConstructor.newInstance("192.168.8.1/24");
+        }
+    }
 }
diff --git a/app/src/main/res/values/array.xml b/app/src/main/res/values/array.xml
index 07b1e8b..88972e5 100644
--- a/app/src/main/res/values/array.xml
+++ b/app/src/main/res/values/array.xml
@@ -2,5 +2,6 @@
 <resources>
     <string-array name="scope">
         <item>android</item>
+        <item>com.android.networkstack</item>
     </string-array>
 </resources>
\ No newline at end of file