From 774e88c815b72be86bc3c48c6086cf96ee0af396 Mon Sep 17 00:00:00 2001
From: M66B <marcel@faircode.eu>
Date: Sun, 29 Jun 2014 11:52:59 +0200
Subject: [PATCH] Added restriction for LinkAddress (Android "L")

Refs #1757
---
 CHANGELOG.md                                |  1 +
 src/biz/bokhorst/xprivacy/Meta.java         |  3 ++
 src/biz/bokhorst/xprivacy/XLinkAddress.java | 47 +++++++++++++++++++++
 src/biz/bokhorst/xprivacy/XPrivacy.java     |  3 ++
 4 files changed, 54 insertions(+)
 create mode 100644 src/biz/bokhorst/xprivacy/XLinkAddress.java

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37997f4f1..746e84b8b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ Changelog
 * Fixed all problems reported through the support info
 	* Thanks for sending all the support info!
 * Removed restrictions for NEW_PICTURE and ACTION_NEW_VIDEO broadcasts (not needed)
+* Added restriction for *LinkAddress.toString* (Android "L") ([issue](/../../issues/1757))
 
 [Open issues](https://github.com/M66B/XPrivacy/issues?state=open)
 
diff --git a/src/biz/bokhorst/xprivacy/Meta.java b/src/biz/bokhorst/xprivacy/Meta.java
index deab292f5..2dd55eec4 100644
--- a/src/biz/bokhorst/xprivacy/Meta.java
+++ b/src/biz/bokhorst/xprivacy/Meta.java
@@ -118,6 +118,7 @@ public static List<Hook> get() {
 		mListHook.add(new Hook("internet", "inet_bw", "READ_NETWORK_USAGE_HISTORY,MODIFY_NETWORK_ACCOUNTING", 1, "2.1.1", null).dangerous().restart().noUsageData());
 		mListHook.add(new Hook("internet", "inet_vpn", "NET_TUNNELING", 1, "2.1.1", null).dangerous().restart().noUsageData());
 		mListHook.add(new Hook("internet", "inet_mesh", "LOOP_RADIO", 1, "2.1.1", null).dangerous().restart().noUsageData());
+
 		mListHook.add(new Hook("internet", "getActiveNetworkInfo", null, 1, null, null).dangerous());
 		mListHook.add(new Hook("internet", "getAllNetworkInfo", null, 1, null, null));
 		mListHook.add(new Hook("internet", "getNetworkInfo", null, 1, null, null).dangerous());
@@ -132,6 +133,8 @@ public static List<Hook> get() {
 
 		mListHook.add(new Hook("internet", "connect", null, 1, "1.99.45", null).dangerous().whitelist(cTypeIPAddress));
 
+		mListHook.add(new Hook("internet", "LinkAddress.toString", null, 20, "2.1.17", null));
+
 		mListHook.add(new Hook("ipc", "IAccountManager", "", 1, "2.1.7", null).dangerous());
 		mListHook.add(new Hook("ipc", "IActivityManager", "", 1, "2.1.7", null).dangerous());
 		mListHook.add(new Hook("ipc", "IClipboard", "", 1, "2.1.7", null).dangerous());
diff --git a/src/biz/bokhorst/xprivacy/XLinkAddress.java b/src/biz/bokhorst/xprivacy/XLinkAddress.java
new file mode 100644
index 000000000..86b05ab50
--- /dev/null
+++ b/src/biz/bokhorst/xprivacy/XLinkAddress.java
@@ -0,0 +1,47 @@
+package biz.bokhorst.xprivacy;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.util.Log;
+
+public class XLinkAddress extends XHook {
+	private Methods mMethod;
+
+	private XLinkAddress(Methods method, String restrictionName) {
+		super(restrictionName, method.name(), "LinkAddress." + method.name());
+		mMethod = method;
+	}
+
+	public String getClassName() {
+		return "android.net.LinkAddress";
+	}
+
+	// public String toString ()
+	// http://developer.android.com/reference/android/net/LinkAddress.html
+
+	private enum Methods {
+		toString
+	};
+
+	public static List<XHook> getInstances() {
+		List<XHook> listHook = new ArrayList<XHook>();
+		listHook.add(new XLinkAddress(Methods.toString, PrivacyManager.cInternet));
+		return listHook;
+	}
+
+	@Override
+	protected void before(XParam param) throws Throwable {
+		// Do nothing
+	}
+
+	@Override
+	protected void after(XParam param) throws Throwable {
+		if (mMethod == Methods.toString) {
+			if (param.getResult() != null && isRestricted(param))
+				param.setResult("127.0.1.1/24");
+
+		} else
+			Util.log(this, Log.WARN, "Unknown method=" + param.method.getName());
+	}
+}
diff --git a/src/biz/bokhorst/xprivacy/XPrivacy.java b/src/biz/bokhorst/xprivacy/XPrivacy.java
index 46fda60ce..ded6833b5 100644
--- a/src/biz/bokhorst/xprivacy/XPrivacy.java
+++ b/src/biz/bokhorst/xprivacy/XPrivacy.java
@@ -224,6 +224,9 @@ protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
 		// IO bridge
 		hookAll(XIoBridge.getInstances(), null, mSecret);
 
+		// Link address
+		hookAll(XLinkAddress.getInstances(), null, mSecret);
+
 		// Location manager
 		hookAll(XLocationManager.getInstances(null), null, mSecret);