├── .github
└── workflows
│ └── android.yml
├── .travis.yml
├── COPYING
├── README.md
├── TODO.md
├── fastlane
└── metadata
│ └── android
│ ├── en-US
│ ├── full_description.txt
│ ├── images
│ │ ├── icon.png
│ │ └── phoneScreenshots
│ │ │ └── 1.png
│ ├── short_description.txt
│ └── title.txt
│ └── ru-RU
│ ├── full_description.txt
│ ├── images
│ ├── icon.png
│ └── phoneScreenshots
│ │ ├── 1.png
│ │ └── 2.png
│ ├── short_description.txt
│ └── title.txt
├── simple-rt-android
├── .gitignore
├── app
│ ├── .gitignore
│ ├── build.gradle
│ ├── proguard-rules.pro
│ └── src
│ │ └── main
│ │ ├── AndroidManifest.xml
│ │ ├── ic_launcher-web.png
│ │ ├── java
│ │ └── com
│ │ │ └── viper
│ │ │ └── simplert
│ │ │ ├── InfoActivity.java
│ │ │ ├── Native.java
│ │ │ ├── StartAccessoryActivity.java
│ │ │ └── TetherService.java
│ │ ├── jni
│ │ └── tetherservice.c
│ │ └── res
│ │ ├── layout
│ │ └── activity_info.xml
│ │ ├── mipmap-hdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-mdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxxhdpi
│ │ └── ic_launcher.png
│ │ ├── values-v21
│ │ └── styles.xml
│ │ ├── values-w820dp
│ │ └── dimens.xml
│ │ ├── values
│ │ ├── dimens.xml
│ │ ├── strings.xml
│ │ └── styles.xml
│ │ └── xml
│ │ └── accessory_filter.xml
├── build.gradle
├── gradle.properties
├── gradle
│ └── wrapper
│ │ ├── gradle-wrapper.jar
│ │ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle
└── simple-rt-cli
├── .gitignore
├── Makefile
├── iface_up.sh
├── include
├── accessory.h
├── adk.h
├── network.h
├── tun.h
└── utils.h
└── src
├── accessory.c
├── adk.c
├── linux
├── tun.c
└── utils.c
├── main.c
├── network.c
├── osx
├── tun.c
└── utils.c
└── unix_common
└── resolver.c
/.github/workflows/android.yml:
--------------------------------------------------------------------------------
1 | name: Build and release
2 |
3 | on: [push]
4 |
5 | jobs:
6 | build:
7 | runs-on: ubuntu-18.04
8 | steps:
9 | - uses: actions/checkout@v1
10 | - name: set up JDK 1.8
11 | uses: actions/setup-java@v1
12 | with:
13 | java-version: 1.8
14 | - name: Build with Gradle
15 | run: |
16 | ./simple-rt-android/gradlew build
17 | ls -Rl ./simple-rt-android/app/
18 |
19 | - name: Upload apk
20 | uses: actions/upload-artifact@v2
21 | with:
22 | name: debug apk
23 | path: simple-rt-android/app/build/outputs/apk/debug/app-debug.apk
24 |
--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
1 | matrix:
2 | include:
3 | - language: C
4 | before_install:
5 | - sudo apt-get update -qq
6 | - sudo apt-get install -qq build-essential pkg-config libusb-1.0-0-dev
7 | before_script: cd simple-rt-cli
8 | script: make
9 | deploy:
10 | provider: releases
11 | api_key:
12 | secure: 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
13 | file: simple-rt
14 | skip_cleanup: true
15 | on:
16 | tags: true
17 | - language: android
18 | android:
19 | components:
20 | - build-tools-24.0.0
21 | - android-24
22 | before_script:
23 | - cd simple-rt-android
24 | - git clone https://github.com/urho3d/android-ndk.git
25 | - printf "ndk.dir=$(pwd)/android-ndk\nsdk.dir=/usr/local/android-sdk\n" > local.properties
26 | script: "./gradlew assembleDebug"
27 | deploy:
28 | provider: releases
29 | api_key:
30 | secure: 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
31 | file: app/build/outputs/apk/app-debug.apk
32 | skip_cleanup: true
33 | on:
34 | tags: true
35 |
--------------------------------------------------------------------------------
/COPYING:
--------------------------------------------------------------------------------
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675 |
--------------------------------------------------------------------------------
/README.md:
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1 | # SimpleRT
2 | Android component: [](https://github.com/robinpaulson/SimpleRT/actions/workflows/android.yml)
3 |
4 | [](https://f-droid.org/repository/browse/?fdid=com.viper.simplert)
5 |
6 | Reverse [Tethering](https://en.wikipedia.org/wiki/Tethering) utility for Android.
7 |
8 | Provides a way to share a computer's internet connection with an Android device via a USB cable.
9 |
10 | Development is still in progress, bugs and errors can occur.
11 |
12 | ```
13 | FIRST RUN: check out -h option
14 | simple-rt -h
15 | usage: sudo ./simple-rt [-h] [-i interface] [-n nameserver|"local" ]
16 | default params: -i eth0 -n 8.8.8.8
17 | ```
18 |
19 | ```
20 | IMPORTANT
21 | If you have any issues with this tool, please, provide some logs:
22 | - run util in debug mode (-d), connect your device
23 | - run "ip addr show"
24 | - run "ip route show"
25 | - store this output into issue ticket on github
26 | ```
27 |
28 | ### No root or adb required
29 |
30 | ## Full Linux and macOS support. Windows version is being researched.
31 |
32 | Current version features:
33 | - Multi-tether. It is possible to connect several android devices into one virtual network
34 | - DNS server can be specified (custom or system one).
35 |
36 | The SimpleRT utility consists of 2 parts:
37 |
38 | - Android part:
39 |
40 | Implemented as a standalone service, no gui, no activities
41 |
42 | Dependencies:
43 | - Android 4.0 and higher.
44 |
45 | Build system based on gradle + gradle experimental android plugin (supporting ndk). To build, both sdk & ndk are required.
46 | Create local.properties file in root dir, it should look like this:
47 | ```
48 | ndk.dir=/home/viper/Android/Sdk/ndk-bundle
49 | sdk.dir=/home/viper/Android/Sdk
50 | ```
51 | build:
52 | ```
53 | ./gradlew assembleDebug
54 | ```
55 | app/build/outputs/apk/app-debug.apk is your apk.
56 |
57 | ## Now available in [f-droid](https://f-droid.org/repository/browse/?fdfilter=simplert&fdid=com.viper.simplert)
58 | A prebuilt apk can also be found under `Downloads` at the [Github releases](https://github.com/iteratec/SimpleRT/releases)
59 | tab.
60 |
61 | - Desktop part:
62 |
63 | Dependencies:
64 | - libusb-1.0
65 | - libresolv (usually already present in both linux and macos)
66 | - tuntap kernel module (linux version), utun (macos version, builtin)
67 |
68 | before build (debian-based example):
69 | ```
70 | sudo apt install build-essential pkg-config libusb-1.0-0-dev
71 | ```
72 |
73 | Makefile is universal for all platforms, just type "make && make install" to install it in prefix /usr/local and
74 | check /usr/local/sbin is in your PATH-variable.
75 | If you want to change the prefix path eg. to install it in /usr instead of /usr/local you can
76 | type "make prefix=/usr && make prefix=/usr install".
77 | If you don't want to install but just run it from within build directory you can type "make iface_up_sh_path=.".
78 |
79 | Usage:
80 |
81 | - run console util as root (sudo simple-rt). The iface_up.sh file needs to be present in the application folder.
82 | - connect your android device
83 |
84 | First connection requires some trivial steps:
85 |
86 | 
87 |
88 | 
89 |
90 | 
91 |
92 | Issues: Some apps do not recognize the reverse tethered internet connection due to ConnectivityManager policy. Leave the WiFi or mobile data connection active, the connection through SimpleRT will be prioritised.
93 |
94 | Partially uses code from [linux-adk](https://github.com/gibsson/linux-adk), which is licensed under the GNU GPLv2 or later. This project is under the GNU GPLv3 or later.
95 |
96 | ##### License: GNU GPL v3
97 |
98 | ```
99 | SimpleRT: Reverse tethering utility for Android
100 | Copyright (C) 2016 Konstantin Menyaev
101 |
102 | This program is free software: you can redistribute it and/or modify
103 | it under the terms of the GNU General Public License as published by
104 | the Free Software Foundation, either version 3 of the License, or
105 | (at your option) any later version.
106 |
107 | This program is distributed in the hope that it will be useful,
108 | but WITHOUT ANY WARRANTY; without even the implied warranty of
109 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
110 | GNU General Public License for more details.
111 |
112 | You should have received a copy of the GNU General Public License
113 | along with this program. If not, see .
114 | ```
115 |
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/TODO.md:
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1 | - ~~push app into f-droid~~ done
2 | - implement simple gui
3 | - ~~pass dns server~~ done
4 | - ~~multi-tethering support~~ done
5 | - ~~push network config from desktop side, don't hardcode it into android service~~ done
6 | - make package for osx, debian
7 | - initialize accessory on utility starting, not on connecting device only
8 | - remove all puts/printfs into common log
9 | - think about proxy support
10 | - windows support?
11 |
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/fastlane/metadata/android/en-US/full_description.txt:
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1 | Provides a way to share a computer's internet connection with an Android device via a USB cable
2 |
3 | Full Linux and macOS support. Windows version is being researched.
4 |
5 | Current version features:
6 |
7 | * Multi-tether. It is possible to connect several android devices into one virtual network
8 | * DNS server can be specified (custom or system one).
9 |
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1 | Simple Reverse Tethering utility for Android
2 |
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1 | SimpleRT
2 |
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/simple-rt-android/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea
5 | .DS_Store
6 | /build
7 | /captures
8 |
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1 | /build
2 |
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/simple-rt-android/app/build.gradle:
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1 | apply plugin: 'com.android.model.application'
2 |
3 | model {
4 | android {
5 | compileSdkVersion 24
6 | buildToolsVersion "24.0.0"
7 |
8 | ndk {
9 | moduleName "simplertjni"
10 | ldLibs.addAll(['log'])
11 | platformVersion 14
12 | }
13 |
14 | defaultConfig {
15 | applicationId "com.viper.simplert"
16 | minSdkVersion.apiLevel 14
17 | targetSdkVersion.apiLevel 24
18 | versionCode 2
19 | versionName "1.1.2"
20 | }
21 | buildTypes {
22 | release {
23 | minifyEnabled false
24 | // proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
25 | }
26 | }
27 | }
28 | }
29 |
30 | dependencies {
31 | compile fileTree(dir: 'libs', include: ['*.jar'])
32 | compile 'com.android.support:appcompat-v7:24.0.0'
33 | }
34 |
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/simple-rt-android/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in /home/viper/Android/Sdk/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
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1 |
2 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
15 |
20 |
21 |
22 |
23 |
24 |
27 |
28 |
29 |
30 |
34 |
35 |
36 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
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/simple-rt-android/app/src/main/java/com/viper/simplert/InfoActivity.java:
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1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | package com.viper.simplert;
20 |
21 | import android.content.Intent;
22 | import android.support.v7.app.AppCompatActivity;
23 | import android.os.Bundle;
24 | import android.view.View;
25 | import android.widget.Button;
26 | import android.widget.TextView;
27 |
28 | public class InfoActivity extends AppCompatActivity {
29 |
30 | private TextView text_info;
31 | private Button button_ok;
32 |
33 | @Override
34 | protected void onCreate(Bundle savedInstanceState) {
35 | super.onCreate(savedInstanceState);
36 | setContentView(R.layout.activity_info);
37 |
38 | setFinishOnTouchOutside(false);
39 |
40 | Intent intent = getIntent();
41 |
42 | if (intent == null) {
43 | finish();
44 | }
45 |
46 | text_info = (TextView) findViewById(R.id.text_info);
47 | button_ok = (Button) findViewById(R.id.button_ok);
48 |
49 | text_info.setText(intent.getStringExtra("text"));
50 |
51 | button_ok.setOnClickListener(new View.OnClickListener() {
52 | @Override
53 | public void onClick(View view) {
54 | finish();
55 | }
56 | });
57 | }
58 | }
59 |
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/simple-rt-android/app/src/main/java/com/viper/simplert/Native.java:
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1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | package com.viper.simplert;
20 |
21 | public class Native {
22 | static native void start(int tun_fd, int acc_fd);
23 | static native void stop();
24 | static native boolean is_running();
25 |
26 | static {
27 | System.loadLibrary("simplertjni");
28 | }
29 | }
30 |
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/simple-rt-android/app/src/main/java/com/viper/simplert/StartAccessoryActivity.java:
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1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | package com.viper.simplert;
20 |
21 | import android.app.Activity;
22 | import android.content.Intent;
23 | import android.net.VpnService;
24 | import android.os.Bundle;
25 |
26 | public class StartAccessoryActivity extends Activity {
27 | private static final String TAG = "StartAccessoryActivity";
28 |
29 | @Override
30 | protected void onCreate(Bundle savedInstanceState) {
31 | super.onCreate(savedInstanceState);
32 |
33 | if (getIntent() != null) {
34 | Intent intent = VpnService.prepare(this);
35 | if (intent != null) {
36 | startActivityForResult(intent, 0);
37 | } else {
38 | onActivityResult(0, RESULT_OK, null);
39 | }
40 | }
41 | }
42 |
43 | @Override
44 | protected void onActivityResult(int request, int result, Intent data) {
45 | super.onActivityResult(request, result, data);
46 | if (request == 0 && result == RESULT_OK) {
47 | Intent intent = new Intent(this, TetherService.class);
48 | intent.fillIn(getIntent(), 0);
49 | startService(intent);
50 | }
51 | finish();
52 | }
53 | }
54 |
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/simple-rt-android/app/src/main/java/com/viper/simplert/TetherService.java:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | package com.viper.simplert;
20 |
21 | import android.annotation.TargetApi;
22 | import android.content.BroadcastReceiver;
23 | import android.content.Context;
24 | import android.content.Intent;
25 | import android.content.IntentFilter;
26 | import android.hardware.usb.UsbAccessory;
27 | import android.hardware.usb.UsbManager;
28 | import android.net.ConnectivityManager;
29 | import android.net.LinkAddress;
30 | import android.net.LinkProperties;
31 | import android.net.Network;
32 | import android.net.VpnService;
33 | import android.os.Build;
34 | import android.os.ParcelFileDescriptor;
35 | import android.support.v4.app.NotificationCompat;
36 | import android.support.v4.app.NotificationManagerCompat;
37 | import android.util.Log;
38 | import android.widget.Toast;
39 |
40 | import java.util.List;
41 |
42 | public class TetherService extends VpnService {
43 | private static final String TAG = "TetherService";
44 | private static final String ACTION_USB_PERMISSION = "com.viper.simplert.TetherService.action.USB_PERMISSION";
45 | private static final int FOREGROUND_NOTIFICATION_ID = 16;
46 |
47 | private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
48 | public void onReceive(Context context, Intent intent) {
49 | String action = intent.getAction();
50 |
51 | if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) {
52 | Log.d(TAG,"Accessory detached");
53 |
54 | UsbAccessory accessory = intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
55 | Native.stop();
56 | unregisterReceiver(mUsbReceiver);
57 | }
58 | }
59 | };
60 |
61 | @Override
62 | public int onStartCommand(final Intent intent, int flags, final int startId) {
63 | Log.w(TAG, "onStartCommand");
64 |
65 | if (intent == null) {
66 | Log.i(TAG, "Intent is null");
67 | return START_NOT_STICKY;
68 | }
69 |
70 | if (Native.is_running()) {
71 | Log.e(TAG, "already running!");
72 | return START_NOT_STICKY;
73 | }
74 |
75 | final UsbAccessory accessory = intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
76 |
77 | if (accessory == null) {
78 | showErrorDialog(getString(R.string.accessory_error));
79 | stopSelf();
80 | return START_NOT_STICKY;
81 | }
82 |
83 | /* default values for compatibility with old simple_rt version */
84 | int prefixLength = 30;
85 | String ipAddr = "10.10.10.2";
86 | String dnsServer = "8.8.8.8";
87 |
88 | /* expected format: address,dns_server */
89 | String[] tokens = accessory.getSerial().split(",");
90 | if (tokens.length == 2) {
91 | ipAddr = tokens[0];
92 | dnsServer = tokens[1];
93 | prefixLength = 24;
94 | }
95 |
96 | Log.d(TAG, "Got accessory: " + accessory.getModel());
97 |
98 | IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
99 | filter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED);
100 | registerReceiver(mUsbReceiver, filter);
101 |
102 | Builder builder = new Builder();
103 | builder.setMtu(1500);
104 | if (Build.VERSION.SDK_INT >= 21) {
105 | builder.allowBypass();
106 | }
107 | builder.setSession(getString(R.string.app_name));
108 | builder.addAddress(ipAddr, prefixLength);
109 | builder.addRoute("0.0.0.0", 0);
110 | builder.addDnsServer(dnsServer);
111 |
112 | final ParcelFileDescriptor accessoryFd = ((UsbManager) getSystemService(Context.USB_SERVICE)).openAccessory(accessory);
113 | if (accessoryFd == null) {
114 | showErrorDialog(getString(R.string.accessory_error));
115 | stopSelf();
116 | return START_NOT_STICKY;
117 | }
118 |
119 | final ParcelFileDescriptor tunFd = builder.establish();
120 | if (tunFd == null) {
121 | showErrorDialog(getString(R.string.tun_error));
122 | stopSelf();
123 | return START_NOT_STICKY;
124 | }
125 |
126 | Toast.makeText(this, "SimpleRT Connected!", Toast.LENGTH_SHORT).show();
127 | Native.start(tunFd.detachFd(), accessoryFd.detachFd());
128 |
129 | setAsUnderlyingNetwork(ipAddr + "/" + prefixLength);
130 |
131 | startForeground(FOREGROUND_NOTIFICATION_ID, new NotificationCompat.Builder(this)
132 | .setOngoing(true)
133 | .setContentTitle(getString(R.string.app_name))
134 | .setContentText(getString(R.string.description_service_running))
135 | .setSmallIcon(android.R.drawable.ic_secure)
136 | .build());
137 |
138 | return START_NOT_STICKY;
139 | }
140 |
141 | @Override
142 | public void onDestroy() {
143 | NotificationManagerCompat.from(this).cancel(FOREGROUND_NOTIFICATION_ID);
144 | super.onDestroy();
145 | }
146 |
147 | private void setAsUnderlyingNetwork(String Address) {
148 | if (Build.VERSION.SDK_INT >= 22) {
149 | Network vpnNetwork = findVpnNetwork(Address);
150 | if (vpnNetwork != null) {
151 | // so that applications knows that network is available
152 | setUnderlyingNetworks(new Network[]{vpnNetwork});
153 | Log.w(TAG, "VPN set as underlying network");
154 | }
155 | } else {
156 | Log.w(TAG, "Cannot set underlying network, API version " + Build.VERSION.SDK_INT + " < 22");
157 | }
158 | }
159 |
160 | @TargetApi(22)
161 | private Network findVpnNetwork(String Address) {
162 | ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
163 | Network[] networks = cm.getAllNetworks();
164 | for (Network network : networks) {
165 | LinkProperties linkProperties = cm.getLinkProperties(network);
166 | List addresses = linkProperties.getLinkAddresses();
167 | for (LinkAddress addr : addresses) {
168 | if (addr.toString().equals(Address)) {
169 | return network;
170 | }
171 | }
172 | }
173 | return null;
174 | }
175 |
176 | private void showErrorDialog(String err) {
177 | Intent activityIntent = new Intent(getApplicationContext(), InfoActivity.class);
178 | activityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
179 | activityIntent.putExtra("text", err);
180 | startActivity(activityIntent);
181 | }
182 | }
183 |
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/simple-rt-android/app/src/main/jni/tetherservice.c:
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1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 | #include
26 |
27 | #define LOG_TAG "SIMPLE_RT_JNI"
28 |
29 | #define DPRINTF(level, fmt, args...) \
30 | do { \
31 | __android_log_print(level, LOG_TAG, fmt, ##args); \
32 | } while (0);
33 |
34 | #define LOGV(fmt, args...) DPRINTF(ANDROID_LOG_VERBOSE, fmt, ##args)
35 | #define LOGD(fmt, args...) DPRINTF(ANDROID_LOG_DEBUG, fmt, ##args)
36 | #define LOGI(fmt, args...) DPRINTF(ANDROID_LOG_INFO, fmt, ##args)
37 | #define LOGW(fmt, args...) DPRINTF(ANDROID_LOG_WARN, fmt, ##args)
38 | #define LOGE(fmt, args...) DPRINTF(ANDROID_LOG_ERROR, fmt, ##args)
39 |
40 | static struct {
41 | pthread_t tun_thread;
42 | pthread_t acc_thread;
43 | int tun_fd;
44 | int acc_fd;
45 | volatile bool is_started;
46 | } module;
47 |
48 | enum ThreadType {
49 | TUN_THREAD = 0,
50 | ACC_THREAD = 1,
51 | };
52 |
53 | #define ACC_BUF_SIZE 4096
54 |
55 | jint JNI_OnLoad(JavaVM *jvm, void *reserved)
56 | {
57 | LOGV(__func__);
58 |
59 | module.is_started = false;
60 | return JNI_VERSION_1_6;
61 | }
62 |
63 | void *thread_proc(void *arg)
64 | {
65 | char buf[ACC_BUF_SIZE] = { 0 };
66 | ssize_t rd;
67 | int in_fd, out_fd;
68 |
69 | enum ThreadType thread_type = (enum ThreadType) arg;
70 |
71 | if (thread_type == TUN_THREAD) {
72 | in_fd = module.tun_fd;
73 | out_fd = module.acc_fd;
74 | } else {
75 | in_fd = module.acc_fd;
76 | out_fd = module.tun_fd;
77 | }
78 |
79 | while (module.is_started) {
80 | if ((rd = read(in_fd, buf, sizeof(buf))) > 0) {
81 | write(out_fd, buf, rd);
82 | } else {
83 | /* FIXME */
84 | break;
85 | }
86 | }
87 |
88 | module.is_started = false;
89 | close(in_fd);
90 |
91 | return NULL;
92 | }
93 |
94 | JNIEXPORT void JNICALL
95 | Java_com_viper_simplert_Native_start(JNIEnv *env, jclass type, jint tun_fd, jint acc_fd)
96 | {
97 | LOGV("%s: tun_fd = %d, acc_fd = %d", __func__, tun_fd, acc_fd);
98 |
99 | if (module.is_started) {
100 | LOGE("Native threads already started!");
101 | return;
102 | }
103 |
104 | module.is_started = true;
105 | module.tun_fd = tun_fd;
106 | module.acc_fd = acc_fd;
107 |
108 | int flags = fcntl(tun_fd, F_GETFL, 0);
109 | fcntl(tun_fd, F_SETFL, flags & ~O_NONBLOCK);
110 |
111 | flags = fcntl(acc_fd, F_GETFL, 0);
112 | fcntl(acc_fd, F_SETFL, flags & ~O_NONBLOCK);
113 |
114 | pthread_create(&module.tun_thread, NULL, thread_proc, TUN_THREAD);
115 | pthread_create(&module.acc_thread, NULL, thread_proc, ACC_THREAD);
116 | }
117 |
118 | JNIEXPORT void JNICALL
119 | Java_com_viper_simplert_Native_stop(JNIEnv *env, jclass type)
120 | {
121 | LOGV(__func__);
122 |
123 | module.is_started = false;
124 |
125 | pthread_join(module.tun_thread, NULL);
126 | pthread_join(module.acc_thread, NULL);
127 | }
128 |
129 | JNIEXPORT jboolean JNICALL
130 | Java_com_viper_simplert_Native_is_1running(JNIEnv *env, jclass type)
131 | {
132 | LOGV(__func__);
133 | return module.is_started;
134 | }
135 |
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1 |
2 |
13 |
14 |
21 |
22 |
30 |
31 |
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1 |
2 |
3 |
9 |
10 |
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1 |
2 |
5 | 64dp
6 |
7 |
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/simple-rt-android/app/src/main/res/values/dimens.xml:
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1 |
2 |
3 | 16dp
4 | 16dp
5 |
6 |
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/simple-rt-android/app/src/main/res/values/strings.xml:
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1 |
2 | SimpleRT
3 | MainActivity
4 | Seems like your device doesn\'t support Android Open Accessory protocol!
5 | Seems like your device doesn\'t support Android VpnApi! Check out tun.ko app.
6 | Service running
7 |
8 |
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/simple-rt-android/app/src/main/res/values/styles.xml:
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1 |
2 |
3 |
4 |
7 |
8 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
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1 |
2 |
3 |
4 |
8 |
9 |
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/simple-rt-android/build.gradle:
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1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
2 |
3 | buildscript {
4 | repositories {
5 | jcenter()
6 | maven {
7 | url "https://maven.google.com"
8 | }
9 | }
10 | dependencies {
11 | // classpath 'com.android.tools.build:gradle:2.1.2'
12 | classpath "com.android.tools.build:gradle-experimental:0.7.0"
13 |
14 | // NOTE: Do not place your application dependencies here; they belong
15 | // in the individual module build.gradle files
16 | }
17 | }
18 |
19 | allprojects {
20 | repositories {
21 | jcenter()
22 | maven {
23 | url "https://maven.google.com"
24 | }
25 | }
26 | }
27 |
28 | task clean(type: Delete) {
29 | delete rootProject.buildDir
30 | }
31 |
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/simple-rt-android/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m
13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
14 |
15 | # When configured, Gradle will run in incubating parallel mode.
16 | # This option should only be used with decoupled projects. More details, visit
17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
18 | # org.gradle.parallel=true
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/simple-rt-android/gradle/wrapper/gradle-wrapper.properties:
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1 | #Mon Dec 28 10:00:20 PST 2015
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
7 |
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/simple-rt-android/gradlew:
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1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
--------------------------------------------------------------------------------
/simple-rt-android/gradlew.bat:
--------------------------------------------------------------------------------
1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
--------------------------------------------------------------------------------
/simple-rt-android/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 |
--------------------------------------------------------------------------------
/simple-rt-cli/.gitignore:
--------------------------------------------------------------------------------
1 | obj
2 | simple-rt
3 |
--------------------------------------------------------------------------------
/simple-rt-cli/Makefile:
--------------------------------------------------------------------------------
1 | # SimpleRT: Reverse tethering utility for Android
2 | # Copyright (C) 2016 Konstantin Menyaev
3 | #
4 | # This program is free software: you can redistribute it and/or modify
5 | # it under the terms of the GNU General Public License as published by
6 | # the Free Software Foundation, either version 3 of the License, or
7 | # (at your option) any later version.
8 | #
9 | # This program is distributed in the hope that it will be useful,
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 | # GNU General Public License for more details.
13 | #
14 | # You should have received a copy of the GNU General Public License
15 | # along with this program. If not, see .
16 |
17 | TARGET = simple-rt
18 |
19 | prefix = /usr/local
20 | exec_prefix = $(prefix)
21 | sbindir = $(exec_prefix)/sbin
22 | libexecdir = $(exec_prefix)/libexec
23 |
24 | iface_up_sh_path = $(libexecdir)/simple-rt
25 |
26 | CC ?= gcc
27 | LDFLAGS = -lm -lpthread -lresolv
28 | CFLAGS = -g -std=c11 -D_DEFAULT_SOURCE -DIFACE_UP_SH_PATH=\"$(iface_up_sh_path)/iface_up.sh\" -Wall -pedantic -Iinclude
29 |
30 | CFLAGS += `pkg-config --cflags libusb-1.0`
31 | LDFLAGS += `pkg-config --libs libusb-1.0`
32 |
33 | .PHONY: default all clean install uninstall
34 |
35 | default: $(TARGET)
36 | all: default
37 |
38 | PLATFORM := none
39 | UNAME := $(shell uname -s)
40 | ifeq ($(UNAME),Linux)
41 | PLATFORM = linux
42 | endif
43 | ifeq ($(UNAME),Darwin)
44 | PLATFORM = osx
45 | endif
46 | ifeq ($(PLATFORM),none)
47 | $(error unknown platform $(UNAME))
48 | endif
49 |
50 | CFLAGS += -DPLATFORM="\"$(PLATFORM)\""
51 |
52 | OBJ = obj
53 | SOURCES = src
54 | UNIX_SRC = src/unix_common
55 | PLATFORM_SRC = $(SOURCES)/$(PLATFORM)
56 | OBJECTS = $(patsubst %.c, $(OBJ)/%.o, $(wildcard $(SOURCES)/*.c $(UNIX_SRC)/*.c $(PLATFORM_SRC)/*.c))
57 | HEADERS = $(wildcard include/*.h)
58 |
59 | $(OBJ)/$(SOURCES)/network.o: $(SOURCES)/network.c $(HEADERS)
60 | echo Compiling $< setting iface_up_sh_path in config.mk to $(iface_up_sh_path).
61 | echo iface_up_sh_path=$(iface_up_sh_path) > config.mk
62 | @mkdir -p `dirname $@`
63 | $(CC) $(CFLAGS) -c $< -o $@
64 |
65 | $(OBJ)/%.o: %.c $(HEADERS)
66 | @mkdir -p `dirname $@`
67 | $(CC) $(CFLAGS) -c $< -o $@
68 |
69 | .PRECIOUS: $(TARGET) $(OBJECTS)
70 |
71 | $(TARGET): $(OBJECTS)
72 | $(CC) $(OBJECTS) -Wall $(LDFLAGS) -o $@
73 |
74 | clean:
75 | -rm -rf $(OBJ)
76 | -rm -f $(TARGET)
77 | -rm -f config.mk
78 | -rm -f config.status
79 |
80 | -include config.mk
81 |
82 | install: simple-rt
83 | echo iface_up_sh_path is $(iface_up_sh_path)
84 | mkdir -p $(DESTDIR)$(sbindir)
85 | mkdir -p $(DESTDIR)$(iface_up_sh_path)
86 | cp $< $(DESTDIR)$(sbindir)
87 | cp iface_up.sh $(DESTDIR)$(iface_up_sh_path)/iface_up.sh
88 | echo "SimpleRT installed, make sure $(DESTDIR)$(sbindir)/ is in your PATH-variable."
89 |
90 | uninstall:
91 | rm -f $(DESTDIR)$(sbindir)/simple-rt
92 | rm -f $(DESTDIR)$(iface_up_sh_path)/iface_up.sh
93 | rmdir --ignore-fail-on-non-empty $(DESTDIR)$(iface_up_sh_path)
94 |
95 |
--------------------------------------------------------------------------------
/simple-rt-cli/iface_up.sh:
--------------------------------------------------------------------------------
1 | #!/bin/bash
2 |
3 | # SimpleRT: Reverse tethering utility for Android
4 | # Copyright (C) 2016 Konstantin Menyaev
5 | #
6 | # This program is free software: you can redistribute it and/or modify
7 | # it under the terms of the GNU General Public License as published by
8 | # the Free Software Foundation, either version 3 of the License, or
9 | # (at your option) any later version.
10 | #
11 | # This program is distributed in the hope that it will be useful,
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 | # GNU General Public License for more details.
15 | #
16 | # You should have received a copy of the GNU General Public License
17 | # along with this program. If not, see .
18 |
19 | PLATFORM=$1
20 | ACTION=$2
21 | TUN_DEV=$3
22 | TUNNEL_NET=$4
23 | HOST_ADDR=$5
24 | TUNNEL_CIDR=$6
25 | NAMESERVER=$7
26 | LOCAL_INTERFACE=$8
27 | shift
28 |
29 | set -e
30 |
31 | comment="simple_rt"
32 |
33 | function linux_start {
34 | ifconfig $TUN_DEV $HOST_ADDR/$TUNNEL_CIDR up
35 | sysctl -w net.ipv4.ip_forward=1 > /dev/null
36 | iptables -I FORWARD -j ACCEPT -m comment --comment "${comment}"
37 | iptables -t nat -I POSTROUTING -s $TUNNEL_NET/$TUNNEL_CIDR -o $LOCAL_INTERFACE -j MASQUERADE -m comment --comment "${comment}"
38 | }
39 |
40 | function linux_stop {
41 | iptables-save | grep -v "${comment}" | iptables-restore
42 | }
43 |
44 | function osx_start {
45 | ifconfig $TUN_DEV $HOST_ADDR 10.10.10.2 netmask 255.255.255.0 up
46 | route add -net $TUNNEL_NET $HOST_ADDR
47 | sysctl -w net.inet.ip.forwarding=1
48 | echo "nat on $LOCAL_INTERFACE from $TUNNEL_NET/$TUNNEL_CIDR to any -> ($LOCAL_INTERFACE)" > /tmp/nat_rules_rt
49 |
50 | # disable pf
51 | pfctl -qd 2>&1 > /dev/null || true
52 | pfctl -qF all 2>&1 > /dev/null || true
53 |
54 | # enable pf with simplert rules
55 | pfctl -qf /tmp/nat_rules_rt -e
56 | }
57 |
58 | function osx_stop {
59 | # disable pf
60 | pfctl -qd 2>&1 > /dev/null || true
61 | pfctl -qF all 2>&1 > /dev/null || true
62 |
63 | # enable pf with system rules
64 | pfctl -qf /etc/pf.conf -e
65 | }
66 |
67 | if [ "$ACTION" = "start" ]; then
68 | echo configuring:
69 | echo local interface: $LOCAL_INTERFACE
70 | echo virtual interface: $TUN_DEV
71 | echo network: $TUNNEL_NET
72 | echo address: $HOST_ADDR
73 | echo netmask: $TUNNEL_CIDR
74 | echo nameserver: $NAMESERVER
75 | fi
76 |
77 | ifconfig $LOCAL_INTERFACE > /dev/null
78 | if [ ! $? -eq 0 ]; then
79 | echo Supply valid local interface!
80 | exit 1
81 | fi
82 |
83 | cmd="$PLATFORM-$ACTION"
84 |
85 | case "$cmd" in
86 | linux-start)
87 | linux_start $@
88 | ;;
89 |
90 | linux-stop)
91 | linux_stop $@
92 | ;;
93 |
94 | osx-start)
95 | osx_start $@
96 | ;;
97 |
98 | osx-stop)
99 | osx_stop $@
100 | ;;
101 |
102 | *)
103 | echo "Unknown command: $cmd"
104 | exit 1
105 | esac
106 |
107 | exit 0
108 |
109 |
--------------------------------------------------------------------------------
/simple-rt-cli/include/accessory.h:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef _ACCESSORY_H_
20 | #define _ACCESSORY_H_
21 |
22 | #include
23 | #include
24 |
25 | typedef uint32_t accessory_id_t;
26 | typedef struct accessory_t accessory_t;
27 |
28 | accessory_t *new_accessory(struct libusb_device_handle *handle,
29 | uint8_t ep_in, uint8_t ep_out);
30 |
31 | void free_accessory(accessory_t *acc);
32 |
33 | int send_accessory_packet(const uint8_t *data, size_t size,
34 | accessory_id_t id);
35 |
36 | void run_usb_probe_thread_detached(struct libusb_device *dev);
37 |
38 | accessory_id_t gen_new_serial_string(char *str, size_t size);
39 |
40 | #endif
41 |
--------------------------------------------------------------------------------
/simple-rt-cli/include/adk.h:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef _LINUX_ADK_H_
20 | #define _LINUX_ADK_H_
21 |
22 | #include
23 | #include
24 |
25 | #include "accessory.h"
26 |
27 | typedef accessory_id_t (*gen_new_serial_str_cb)(char *str, size_t size);
28 |
29 | accessory_t *probe_usb_device(struct libusb_device *dev,
30 | gen_new_serial_str_cb gen_new_serial_str);
31 |
32 | ssize_t read_usb_packet(struct libusb_device_handle *handle, uint8_t ep,
33 | uint8_t *data, size_t size);
34 |
35 | ssize_t write_usb_packet(struct libusb_device_handle *handle, uint8_t ep,
36 | const uint8_t *data, size_t size);
37 |
38 | #endif /* _LINUX_ADK_H_ */
39 |
--------------------------------------------------------------------------------
/simple-rt-cli/include/network.h:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef _NETWORH_H_
20 | #define _NETWORH_H_
21 |
22 | #include
23 | #include
24 |
25 | #include "accessory.h"
26 |
27 | bool start_network(void);
28 | void stop_network(void);
29 |
30 | ssize_t send_network_packet(const uint8_t *data, size_t size);
31 |
32 | accessory_id_t get_acc_id_from_packet(const uint8_t *data,
33 | size_t size, bool dst_addr);
34 |
35 | char *fill_serial_param(char *buf, size_t size,
36 | accessory_id_t acc_id);
37 |
38 | #endif
39 |
--------------------------------------------------------------------------------
/simple-rt-cli/include/tun.h:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef _TUN_H_
20 | #define _TUN_H_
21 |
22 | #include
23 | #include
24 |
25 | bool is_tun_present(void);
26 | int tun_alloc(char *dev_name, size_t dev_name_size);
27 | ssize_t tun_read_ip_packet(int fd, uint8_t *packet, size_t size);
28 | ssize_t tun_write_ip_packet(int fd, const uint8_t *packet, size_t size);
29 |
30 | #endif
31 |
--------------------------------------------------------------------------------
/simple-rt-cli/include/utils.h:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef _UTILS_H_
20 | #define _UTILS_H_
21 |
22 | #define DEFAULT_NAMESERVER "8.8.8.8"
23 |
24 | #define ACC_BUF_SIZE 4096
25 |
26 | #define ARRAY_SIZE(x) (sizeof((x)) / sizeof((x)[0]))
27 |
28 | typedef struct simple_rt_config_t {
29 | const char *interface;
30 | const char *nameserver;
31 | } simple_rt_config_t;
32 |
33 | extern simple_rt_config_t *get_simple_rt_config(void);
34 | extern const char *get_system_nameserver(void);
35 |
36 | #endif
37 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/accessory.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 |
26 | #include "accessory.h"
27 | #include "adk.h"
28 | #include "network.h"
29 | #include "utils.h"
30 |
31 | typedef struct accessory_t {
32 | uint8_t ep_in;
33 | uint8_t ep_out;
34 | accessory_id_t id;
35 | volatile bool is_running;
36 | struct libusb_device_handle *handle;
37 | } accessory_t;
38 |
39 | static struct {
40 | bool used;
41 | accessory_t *acc;
42 | } acc_list[256] = {
43 | [0] = { .used = true }, /* reserved, network addr */
44 | [1] = { .used = true }, /* reserved, host addr */
45 | [255] = { .used = true }, /* reserved, broadcast addr */
46 | };
47 |
48 | static pthread_rwlock_t acc_list_lock = PTHREAD_RWLOCK_INITIALIZER;
49 |
50 | static bool is_accessory_id_valid(accessory_id_t id)
51 | {
52 | return id && id < ARRAY_SIZE(acc_list);
53 | }
54 |
55 | static accessory_id_t acquire_accessory_id(void)
56 | {
57 | accessory_id_t ret = 0;
58 |
59 | pthread_rwlock_wrlock(&acc_list_lock);
60 |
61 | for (uint32_t i = 0; i < ARRAY_SIZE(acc_list); i++) {
62 | if (!acc_list[i].used) {
63 | acc_list[i].used = true;
64 | ret = i;
65 | break;
66 | }
67 | }
68 |
69 | pthread_rwlock_unlock(&acc_list_lock);
70 |
71 | return ret;
72 | }
73 |
74 | static void release_accessory_id(accessory_id_t id)
75 | {
76 | if (!is_accessory_id_valid(id)) {
77 | return;
78 | }
79 |
80 | pthread_rwlock_wrlock(&acc_list_lock);
81 |
82 | acc_list[id].acc = NULL;
83 | acc_list[id].used = false;
84 |
85 | pthread_rwlock_unlock(&acc_list_lock);
86 | }
87 |
88 | static bool store_accessory_id(accessory_t *acc, accessory_id_t id)
89 | {
90 | if (!acc || !is_accessory_id_valid(id)) {
91 | return false;
92 | }
93 |
94 | pthread_rwlock_wrlock(&acc_list_lock);
95 |
96 | acc->id = id;
97 | acc_list[acc->id].acc = acc;
98 |
99 | pthread_rwlock_unlock(&acc_list_lock);
100 |
101 | return true;
102 | }
103 |
104 | static accessory_t *find_accessory_by_id(accessory_id_t id)
105 | {
106 | accessory_t *ret;
107 |
108 | if (!is_accessory_id_valid(id)) {
109 | return NULL;
110 | }
111 |
112 | pthread_rwlock_rdlock(&acc_list_lock);
113 |
114 | ret = acc_list[id].acc;
115 |
116 | pthread_rwlock_unlock(&acc_list_lock);
117 |
118 | return ret;
119 | }
120 |
121 | static void accessory_worker_proc(accessory_t *acc)
122 | {
123 | uint8_t acc_buf[ACC_BUF_SIZE];
124 | accessory_id_t id = 0;
125 | ssize_t nread;
126 |
127 | puts("accessory connected!");
128 |
129 | acc->is_running = true;
130 |
131 | /* read first packet and map acc->id */
132 | while (acc->is_running) {
133 | if ((nread = read_usb_packet(acc->handle, acc->ep_in,
134 | acc_buf, sizeof(acc_buf))) > 0) {
135 | if ((id = get_acc_id_from_packet(acc_buf, nread, false)) != 0) {
136 | store_accessory_id(acc, id);
137 | break;
138 | }
139 | } else if (nread < 0) {
140 | goto end;
141 | } else {
142 | continue;
143 | }
144 | }
145 |
146 | /* read rest packets */
147 | while (acc->is_running) {
148 | if ((nread = read_usb_packet(acc->handle, acc->ep_in,
149 | acc_buf, sizeof(acc_buf))) > 0) {
150 | if (send_network_packet(acc_buf, nread) < 0) {
151 | break;
152 | }
153 | } else if (nread < 0) {
154 | break;
155 | } else {
156 | continue;
157 | }
158 | }
159 |
160 | end:
161 | acc->is_running = false;
162 | free_accessory(acc);
163 | }
164 |
165 | accessory_t *new_accessory(struct libusb_device_handle *handle, uint8_t ep_in, uint8_t ep_out)
166 | {
167 | accessory_t *acc = NULL;
168 |
169 | acc = malloc(sizeof(accessory_t));
170 | acc->id = 0;
171 | acc->is_running = false;
172 | acc->handle = handle;
173 | acc->ep_in = ep_in;
174 | acc->ep_out = ep_out;
175 |
176 | return acc;
177 | }
178 |
179 | void free_accessory(accessory_t *acc)
180 | {
181 | if (!acc) {
182 | return;
183 | }
184 |
185 | if (acc->id) {
186 | release_accessory_id(acc->id);
187 | }
188 |
189 | if (acc->handle) {
190 | printf("Closing accessory device\n");
191 | libusb_close(acc->handle);
192 | }
193 |
194 | free(acc);
195 | }
196 |
197 | int send_accessory_packet(const uint8_t *data, size_t size,
198 | accessory_id_t id)
199 | {
200 | accessory_t *acc;
201 |
202 | if ((acc = find_accessory_by_id(id)) != NULL) {
203 | if (write_usb_packet(acc->handle, acc->ep_out, data, size) < 0) {
204 | /* seems like accessory removed, just ignore */
205 | }
206 | } else {
207 | /* accessory not found, removed? */
208 | }
209 |
210 | return 0;
211 | }
212 |
213 | accessory_id_t gen_new_serial_string(char *str, size_t size)
214 | {
215 | accessory_id_t id;
216 |
217 | if ((id = acquire_accessory_id()) == 0) {
218 | fprintf(stderr, "No free accessory IDs left\n");
219 | return 0;
220 | }
221 |
222 | fill_serial_param(str, size, id);
223 |
224 | return id;
225 | }
226 |
227 | static void *usb_device_thread_proc(void *param)
228 | {
229 | accessory_t *acc;
230 | struct libusb_device *dev = param;
231 |
232 | if ((acc = probe_usb_device(dev, gen_new_serial_string)) == NULL) {
233 | goto end;
234 | }
235 |
236 | /* block here */
237 | accessory_worker_proc(acc);
238 |
239 | end:
240 | return NULL;
241 | }
242 |
243 | void run_usb_probe_thread_detached(struct libusb_device *dev)
244 | {
245 | pthread_t th;
246 | pthread_attr_t attrs;
247 | pthread_attr_init(&attrs);
248 | pthread_attr_setdetachstate(&attrs, PTHREAD_CREATE_DETACHED);
249 | pthread_create(&th, &attrs, usb_device_thread_proc, dev);
250 | }
251 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/adk.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 |
24 | #include "utils.h"
25 | #include "adk.h"
26 |
27 | /* Android Open Accessory protocol defines */
28 | #define AOA_GET_PROTOCOL 51
29 | #define AOA_SEND_IDENT 52
30 | #define AOA_START_ACCESSORY 53
31 | #define AOA_REGISTER_HID 54
32 | #define AOA_UNREGISTER_HID 55
33 | #define AOA_SET_HID_REPORT_DESC 56
34 | #define AOA_SEND_HID_EVENT 57
35 | #define AOA_AUDIO_SUPPORT 58
36 |
37 | /* String IDs */
38 | #define AOA_STRING_MAN_ID 0
39 | #define AOA_STRING_MOD_ID 1
40 | #define AOA_STRING_DSC_ID 2
41 | #define AOA_STRING_VER_ID 3
42 | #define AOA_STRING_URL_ID 4
43 | #define AOA_STRING_SER_ID 5
44 |
45 | /* Product IDs / Vendor IDs */
46 | #define AOA_ACCESSORY_VID 0x18D1 /* Google */
47 | #define AOA_ACCESSORY_PID 0x2D00 /* accessory */
48 | #define AOA_ACCESSORY_ADB_PID 0x2D01 /* accessory + adb */
49 | #define AOA_AUDIO_PID 0x2D02 /* audio */
50 | #define AOA_AUDIO_ADB_PID 0x2D03 /* audio + adb */
51 | #define AOA_ACCESSORY_AUDIO_PID 0x2D04 /* accessory + audio */
52 | #define AOA_ACCESSORY_AUDIO_ADB_PID 0x2D05 /* accessory + audio + adb */
53 |
54 | /* Default Endpoint Addresses */
55 | #define AOA_ACCESSORY_EP_IN 0x81
56 | #define AOA_ACCESSORY_EP_OUT 0x02
57 |
58 | /* ACC params */
59 | #define ACC_TIMEOUT 200
60 |
61 | static uint16_t get_accessory_endpoints(struct libusb_device *dev)
62 | {
63 | /* default values */
64 | uint8_t ep_in = AOA_ACCESSORY_EP_IN;
65 | uint8_t ep_out = AOA_ACCESSORY_EP_OUT;
66 |
67 | bool found = false;
68 | struct libusb_config_descriptor *config = NULL;
69 |
70 | libusb_get_config_descriptor(dev, 0, &config);
71 |
72 | if (!config) {
73 | goto end;
74 | }
75 |
76 | if (!config->bNumInterfaces) {
77 | goto end;
78 | }
79 |
80 | /* FIXME: get interface by name? */
81 | const struct libusb_interface *iface = config->interface;
82 |
83 | if (!iface) {
84 | goto end;
85 | }
86 |
87 | if (!iface->num_altsetting) {
88 | goto end;
89 | }
90 |
91 | const struct libusb_interface_descriptor *interface = &iface->altsetting[0];
92 |
93 | if (!interface) {
94 | goto end;
95 | }
96 |
97 | if (interface->bNumEndpoints < 2) {
98 | goto end;
99 | }
100 |
101 | /* FIXME: get endpoints by name? */
102 | const struct libusb_endpoint_descriptor *endpoint_in = &interface->endpoint[0];
103 | const struct libusb_endpoint_descriptor *endpoint_out = &interface->endpoint[1];
104 |
105 | found = true;
106 | ep_in = endpoint_in->bEndpointAddress;
107 | ep_out = endpoint_out->bEndpointAddress;
108 |
109 | end:
110 | if (config) {
111 | libusb_free_config_descriptor(config);
112 | }
113 |
114 | if (!found) {
115 | fprintf(stderr, "Unable to get endpoints addresses from device, "
116 | "default will be used\n");
117 | }
118 |
119 | return (ep_in << 8) | ep_out;
120 | }
121 |
122 | static bool is_accessory_present(struct libusb_device *dev)
123 | {
124 | static const uint16_t aoa_pids[] = {
125 | AOA_ACCESSORY_PID,
126 | AOA_ACCESSORY_ADB_PID,
127 | AOA_AUDIO_PID,
128 | AOA_AUDIO_ADB_PID,
129 | AOA_ACCESSORY_AUDIO_PID,
130 | AOA_ACCESSORY_AUDIO_ADB_PID,
131 | };
132 |
133 | struct libusb_device_descriptor desc;
134 |
135 | libusb_get_device_descriptor(dev, &desc);
136 |
137 | for (size_t i = 0; i < ARRAY_SIZE(aoa_pids); i++) {
138 | if (desc.idVendor == AOA_ACCESSORY_VID && desc.idProduct == aoa_pids[i]) {
139 | printf("Found accessory %4.4x:%4.4x\n", desc.idVendor, desc.idProduct);
140 | return true;
141 | }
142 | }
143 |
144 | return false;
145 | }
146 |
147 | accessory_t *probe_usb_device(struct libusb_device *dev,
148 | gen_new_serial_str_cb gen_new_serial_str)
149 | {
150 | int ret = 0;
151 | uint16_t aoa_version = 0;
152 | char serial_str[128] = { 0 };
153 |
154 | struct libusb_device_handle *handle = NULL;
155 |
156 | if ((ret = libusb_open(dev, &handle)) != 0) {
157 | fprintf(stderr, "Error opening usb device: %s\n",
158 | libusb_strerror(ret));
159 | return NULL;
160 | }
161 |
162 | if (is_accessory_present(dev)) {
163 | uint16_t endpoints = get_accessory_endpoints(dev);
164 |
165 | /* create accessory struct */
166 | return new_accessory(handle, endpoints >> 8, endpoints & 0xff);
167 | }
168 |
169 | /* Now asking if device supports Android Open Accessory protocol */
170 | ret = libusb_control_transfer(handle,
171 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR,
172 | AOA_GET_PROTOCOL, 0, 0,
173 | (uint8_t *) &aoa_version, sizeof(aoa_version), 0);
174 |
175 | /* libusb_control_transfer returns a pipe error if the control request is
176 | * not supported by the device. This error code is to be expected when
177 | * SimpleRT starts up and it should therefore generate a specialized log
178 | * message. For example, the Raspberry Pi ethernet adapter is detected as
179 | * an usb device and throws a pipe error. */
180 | if (ret < 0 && ret != LIBUSB_ERROR_PIPE) {
181 | goto error;
182 | }
183 |
184 | if (!aoa_version) {
185 | struct libusb_device_descriptor desc;
186 | libusb_get_device_descriptor(dev, &desc);
187 | printf("Detected usb device with vendor id %x and product id %x does "
188 | "not support Android Open Accessory protocol.\n",
189 | desc.idVendor, desc.idProduct);
190 | ret = 0;
191 | goto error;
192 | }
193 |
194 | printf("Device supports AOA %d.0!\n", aoa_version);
195 |
196 | if (gen_new_serial_str(serial_str, sizeof(serial_str)) == 0) {
197 | ret = 0;
198 | goto error;
199 | }
200 |
201 | struct acc_control_params_t {
202 | const char *str;
203 | uint8_t request_type;
204 | uint8_t bRequest;
205 | uint16_t wValue;
206 | uint16_t wIndex;
207 | const char *data;
208 | uint32_t timeout;
209 | } acc_control_params[] = {
210 | {
211 | .str = "manufacturer",
212 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
213 | .bRequest = AOA_SEND_IDENT,
214 | .wIndex = AOA_STRING_MAN_ID,
215 | .data = "Konstantin Menyaev",
216 | },
217 | {
218 | .str = "model",
219 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
220 | .bRequest = AOA_SEND_IDENT,
221 | .wIndex = AOA_STRING_MOD_ID,
222 | .data = "SimpleRT",
223 | },
224 | {
225 | .str = "description",
226 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
227 | .bRequest = AOA_SEND_IDENT,
228 | .wIndex = AOA_STRING_DSC_ID,
229 | .data = "Simple Reverse Tethering",
230 | },
231 | {
232 | .str = "version",
233 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
234 | .bRequest = AOA_SEND_IDENT,
235 | .wIndex = AOA_STRING_VER_ID,
236 | .data = "1.1.2",
237 | },
238 | {
239 | .str = "url",
240 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
241 | .bRequest = AOA_SEND_IDENT,
242 | .wIndex = AOA_STRING_URL_ID,
243 | .data = "https://github.com/vvviperrr/SimpleRT",
244 | },
245 | {
246 | .str = "serial number",
247 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
248 | .bRequest = AOA_SEND_IDENT,
249 | .wIndex = AOA_STRING_SER_ID,
250 | .data = serial_str,
251 | },
252 | {
253 | .str = "command",
254 | .request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR,
255 | .bRequest = AOA_START_ACCESSORY,
256 | },
257 | { NULL, 0, 0, 0, 0, NULL, 0 },
258 | };
259 |
260 | printf("Waiting 10 seconds before sending information to device\n");
261 | sleep(10);
262 |
263 | printf("Sending identification to the device\n");
264 | for (struct acc_control_params_t *acp = acc_control_params;
265 | acp->str != NULL; acp++)
266 | {
267 | const char *data = acp->data ? acp->data : "start accessory";
268 | uint16_t data_len = acp->data ? strlen(acp->data) + 1 : 0;
269 |
270 | printf(" sending %s: %s\n", acp->str, data);
271 |
272 | ret = libusb_control_transfer(handle,
273 | acp->request_type,
274 | acp->bRequest,
275 | acp->wValue,
276 | acp->wIndex,
277 | (uint8_t *) acp->data,
278 | data_len,
279 | acp->timeout);
280 | if (ret < 0) {
281 | goto error;
282 | }
283 | }
284 |
285 | puts("Accessory was initialized successfully!");
286 |
287 | error:
288 | if (ret < 0) {
289 | fprintf(stderr, "Accessory init failed: %s\n", libusb_strerror(ret));
290 | }
291 |
292 | if (handle) {
293 | libusb_close(handle);
294 | }
295 |
296 | return NULL;
297 | }
298 |
299 | /* FIXME: read_all semantic */
300 | ssize_t read_usb_packet(struct libusb_device_handle *handle, uint8_t ep,
301 | uint8_t *data, size_t size)
302 | {
303 | int ret;
304 | int transferred;
305 |
306 | while (true) {
307 | ret = libusb_bulk_transfer(handle, ep,
308 | data, size, &transferred, ACC_TIMEOUT);
309 | if (ret < 0) {
310 | if (ret == LIBUSB_ERROR_TIMEOUT) {
311 | continue;
312 | } else {
313 | fprintf(stderr, "read_usb_packet failed: %s\n",
314 | libusb_strerror(ret));
315 | return -1;
316 | }
317 | } else {
318 | /* success */
319 | break;
320 | }
321 | }
322 |
323 | return transferred;
324 | }
325 |
326 | /* FIXME: write_all semantic */
327 | ssize_t write_usb_packet(struct libusb_device_handle *handle, uint8_t ep,
328 | const uint8_t *data, size_t size)
329 | {
330 | int ret;
331 | int transferred;
332 |
333 | while (true) {
334 | ret = libusb_bulk_transfer(handle, ep,
335 | (uint8_t *) data, size, &transferred, ACC_TIMEOUT);
336 | if (ret < 0) {
337 | if (ret == LIBUSB_ERROR_TIMEOUT) {
338 | continue;
339 | } else {
340 | fprintf(stderr, "write_usb_packet failed: %s\n",
341 | libusb_strerror(ret));
342 | return -1;
343 | }
344 | } else {
345 | /* success */
346 | break;
347 | }
348 | }
349 |
350 | return transferred;
351 | }
352 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/linux/tun.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 | #include
26 | #include
27 | #include
28 | #include
29 |
30 | static const char clonedev[] = "/dev/net/tun";
31 |
32 | bool is_tun_present(void)
33 | {
34 | return access(clonedev, F_OK) == 0;
35 | }
36 |
37 | int tun_alloc(char *dev_name, size_t dev_name_size)
38 | {
39 | int fd;
40 | int err;
41 | struct ifreq ifr;
42 |
43 | if ((fd = open(clonedev, O_RDWR)) < 0 ) {
44 | perror("error open tun");
45 | return fd;
46 | }
47 |
48 | memset(&ifr, 0, sizeof(ifr));
49 | ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
50 |
51 | if ((err = ioctl(fd, TUNSETIFF, (void *) &ifr)) < 0) {
52 | close(fd);
53 | perror("error create tun");
54 | return err;
55 | }
56 |
57 | memset(dev_name, 0, dev_name_size);
58 | strncpy(dev_name, ifr.ifr_name, dev_name_size - 1);
59 |
60 | return fd;
61 | }
62 |
63 | ssize_t tun_read_ip_packet(int fd, uint8_t *packet, size_t size)
64 | {
65 | return read(fd, packet, size);
66 | }
67 |
68 | ssize_t tun_write_ip_packet(int fd, const uint8_t *packet, size_t size)
69 | {
70 | return write(fd, packet, size);
71 | }
72 |
73 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/linux/utils.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include "utils.h"
20 |
21 | static simple_rt_config_t simple_rt_config = {
22 | .interface = "eth0",
23 | .nameserver = DEFAULT_NAMESERVER,
24 | };
25 |
26 | simple_rt_config_t *get_simple_rt_config(void)
27 | {
28 | return &simple_rt_config;
29 | }
30 |
31 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/main.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 | #include
26 | #include
27 | #include
28 | #include
29 |
30 | #include "accessory.h"
31 | #include "network.h"
32 | #include "utils.h"
33 |
34 | #define PID_FILE "/var/run/simple_rt.pid"
35 |
36 | static int hotplug_callback(struct libusb_context *ctx,
37 | struct libusb_device *dev,
38 | libusb_hotplug_event event,
39 | void * arg)
40 | {
41 | if (event != LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED) {
42 | fprintf(stderr, "Unknown libusb_hotplug_event: %d\n", event);
43 | return 0;
44 | }
45 |
46 | run_usb_probe_thread_detached(dev);
47 |
48 | return 0;
49 | }
50 |
51 | static bool is_instance_already_running(void)
52 | {
53 | int pid_file = open(PID_FILE, O_CREAT | O_RDWR, 0666);
54 | int rc = flock(pid_file, LOCK_EX | LOCK_NB);
55 |
56 | if (rc < 0 && errno == EWOULDBLOCK) {
57 | /* one instance already running */
58 | return true;
59 | }
60 |
61 | /* do not bother of releasing descriptor */
62 |
63 | return false;
64 | }
65 |
66 | static volatile sig_atomic_t g_exit_flag = 0;
67 |
68 | static void exit_signal_handler(int signo)
69 | {
70 | g_exit_flag = 1;
71 | puts("");
72 | }
73 |
74 | int main(int argc, char *argv[])
75 | {
76 | int rc = 0;
77 | libusb_hotplug_callback_handle callback_handle;
78 |
79 | simple_rt_config_t *config = get_simple_rt_config();
80 |
81 | libusb_init(NULL);
82 |
83 | signal(SIGINT, exit_signal_handler);
84 |
85 | while ((rc = getopt (argc, argv, "hdi:n:")) != -1) {
86 | switch (rc) {
87 | case 'h':
88 | printf("usage: sudo %s [-h] [-i interface] [-n nameserver|\"local\" ]\n"
89 | "default params: -i %s -n %s\n",
90 | argv[0],
91 | config->interface,
92 | config->nameserver);
93 | return EXIT_SUCCESS;
94 | case 'd':
95 | puts("debug mode enabled");
96 | libusb_set_debug(NULL, LIBUSB_LOG_LEVEL_DEBUG);
97 | break;
98 | case 'i':
99 | config->interface = optarg;
100 | break;
101 | case 'n':
102 | if (!strcmp(optarg, "local")) {
103 | config->nameserver = get_system_nameserver();
104 | } else {
105 | config->nameserver = optarg;
106 | }
107 | break;
108 | case '?':
109 | default:
110 | return EXIT_FAILURE;
111 | }
112 | }
113 |
114 | if (is_instance_already_running()) {
115 | fprintf(stderr, "One instance of SimpleRT is already running!\n");
116 | return EXIT_FAILURE;
117 | }
118 |
119 | if (geteuid() != 0) {
120 | fprintf(stderr, "Run app as root!\n");
121 | return EXIT_FAILURE;
122 | }
123 |
124 | if (!start_network()) {
125 | fprintf(stderr, "Unable to start network!\n");
126 | return EXIT_FAILURE;
127 | }
128 |
129 | rc = libusb_hotplug_register_callback(NULL, LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED,
130 | LIBUSB_HOTPLUG_ENUMERATE, LIBUSB_HOTPLUG_MATCH_ANY,
131 | LIBUSB_HOTPLUG_MATCH_ANY, LIBUSB_HOTPLUG_MATCH_ANY,
132 | hotplug_callback, NULL, &callback_handle);
133 |
134 | if (rc != LIBUSB_SUCCESS) {
135 | fprintf(stderr, "Error creating a hotplug callback\n");
136 | return EXIT_FAILURE;
137 | }
138 |
139 | puts("SimpleRT started!");
140 |
141 | while (!g_exit_flag) {
142 | libusb_handle_events_completed(NULL, NULL);
143 | }
144 |
145 | stop_network();
146 |
147 | libusb_hotplug_deregister_callback(NULL, callback_handle);
148 | libusb_exit(NULL);
149 |
150 | return EXIT_SUCCESS;
151 | }
152 |
153 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/network.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 | #include
26 |
27 | #include "tun.h"
28 | #include "network.h"
29 | #include "utils.h"
30 |
31 | #ifndef IFNAMSIZ
32 | #define IFNAMSIZ 16
33 | #endif
34 |
35 | #define SIMPLERT_NETWORK_ADDRESS_BUILDER(a,b,c,d) ( \
36 | (uint32_t) ((a) << 24) | \
37 | (uint32_t) ((b) << 16) | \
38 | (uint32_t) ((c) << 8) | \
39 | (uint32_t) ((d) << 0) \
40 | )
41 |
42 | #define SIMPLERT_NETWORK_ADDRESS \
43 | SIMPLERT_NETWORK_ADDRESS_BUILDER(10,10,10,0)
44 |
45 | #define NETWORK_ADDRESS(addr) \
46 | ((addr) & 0xffffff00)
47 |
48 | #define ACC_ID_FROM_ADDR(addr) \
49 | ((addr) & 0xff)
50 |
51 | #ifndef IFACE_UP_SH_PATH
52 | #define IFACE_UP_SH_PATH "./iface_up.sh"
53 | #endif
54 |
55 | /* tun stuff */
56 | static int g_tun_fd = 0;
57 | static pthread_t g_tun_thread;
58 | static volatile bool g_tun_is_running = false;
59 |
60 | static inline void dump_addr_info(uint32_t addr, size_t size)
61 | {
62 | uint32_t tmp = htonl(addr);
63 | printf("packet size = %zu, dest addr = %s, device id = %d\n", size,
64 | inet_ntoa(*(struct in_addr *) &tmp),
65 | addr & 0xff);
66 | }
67 |
68 | accessory_id_t get_acc_id_from_packet(const uint8_t *data, size_t size, bool dst_addr)
69 | {
70 | uint32_t addr;
71 | unsigned int addr_offset = (dst_addr ? 16 : 12);
72 |
73 | /* only ipv4 supported */
74 | if (size < 20 || ((*data >> 4) & 0xf) != 4) {
75 | goto end;
76 | }
77 |
78 | /* dest ip addr in LE */
79 | addr =
80 | (uint32_t) (data[addr_offset + 0] << 24) |
81 | (uint32_t) (data[addr_offset + 1] << 16) |
82 | (uint32_t) (data[addr_offset + 2] << 8) |
83 | (uint32_t) (data[addr_offset + 3] << 0);
84 |
85 | if (NETWORK_ADDRESS(addr) == SIMPLERT_NETWORK_ADDRESS) {
86 | /* dump_addr_info(addr, size); */
87 | return ACC_ID_FROM_ADDR(addr);
88 | }
89 |
90 | end:
91 | return 0;
92 | }
93 |
94 | static void *tun_thread_proc(void *arg)
95 | {
96 | ssize_t nread;
97 | uint8_t acc_buf[ACC_BUF_SIZE];
98 | accessory_id_t id = 0;
99 |
100 | g_tun_is_running = true;
101 |
102 | while (g_tun_is_running) {
103 | if ((nread = tun_read_ip_packet(g_tun_fd, acc_buf, sizeof(acc_buf))) > 0) {
104 | if ((id = get_acc_id_from_packet(acc_buf, nread, true)) != 0) {
105 | send_accessory_packet(acc_buf, nread, id);
106 | } else {
107 | /* invalid packet received, ignore */
108 | }
109 | } else if (nread < 0) {
110 | fprintf(stderr, "Error reading from tun: %s\n", strerror(errno));
111 | break;
112 | } else {
113 | /* EOF received */
114 | break;
115 | }
116 | }
117 |
118 | g_tun_is_running = false;
119 |
120 | return NULL;
121 | }
122 |
123 | /* FIXME */
124 | static bool iface_up(const char *dev)
125 | {
126 | char cmd[1024] = { 0 };
127 | char net_addr_str[32] = { 0 };
128 | char host_addr_str[32] = { 0 };
129 |
130 | simple_rt_config_t *config = get_simple_rt_config();
131 |
132 | uint32_t net_addr = htonl(SIMPLERT_NETWORK_ADDRESS);
133 | uint32_t host_addr = htonl(SIMPLERT_NETWORK_ADDRESS | 0x1);
134 | uint32_t mask = __builtin_popcount(NETWORK_ADDRESS(-1));
135 |
136 | snprintf(net_addr_str, sizeof(net_addr_str), "%s",
137 | inet_ntoa(*(struct in_addr *) &net_addr));
138 |
139 | snprintf(host_addr_str, sizeof(host_addr_str), "%s",
140 | inet_ntoa(*(struct in_addr *) &host_addr));
141 |
142 | snprintf(cmd, sizeof(cmd), "%s %s start %s %s %s %u %s %s\n",
143 | IFACE_UP_SH_PATH, PLATFORM, dev, net_addr_str, host_addr_str, mask,
144 | config->nameserver,
145 | config->interface);
146 |
147 | return system(cmd) == 0;
148 | }
149 |
150 | static bool iface_down(void)
151 | {
152 | char cmd[1024] = { 0 };
153 |
154 | snprintf(cmd, sizeof(cmd), "%s %s stop",
155 | IFACE_UP_SH_PATH, PLATFORM);
156 |
157 | return system(cmd) == 0;
158 | }
159 |
160 | bool start_network(void)
161 | {
162 | int tun_fd = 0;
163 | char tun_name[IFNAMSIZ] = { 0 };
164 |
165 | if (g_tun_is_running) {
166 | fprintf(stderr, "Network already started!\n");
167 | return false;
168 | }
169 |
170 | puts("starting network");
171 |
172 | if (!is_tun_present()) {
173 | fprintf(stderr, "Tun dev is not present. Is kernel module loaded?\n");
174 | return false;
175 | }
176 |
177 | if ((tun_fd = tun_alloc(tun_name, sizeof(tun_name))) < 0) {
178 | perror("tun_alloc failed");
179 | return false;
180 | }
181 |
182 | if (!iface_up(tun_name)) {
183 | fprintf(stderr, "Unable to set interface %s up\n", tun_name);
184 | close(tun_fd);
185 | return false;
186 | }
187 |
188 | g_tun_fd = tun_fd;
189 | printf("%s interface configured!\n", tun_name);
190 |
191 | pthread_create(&g_tun_thread, NULL, tun_thread_proc, NULL);
192 |
193 | return true;
194 | }
195 |
196 | void stop_network(void)
197 | {
198 | if (g_tun_is_running) {
199 | puts("stopping network");
200 | g_tun_is_running = false;
201 | pthread_cancel(g_tun_thread);
202 | pthread_join(g_tun_thread, NULL);
203 | iface_down();
204 | }
205 |
206 | if (g_tun_fd) {
207 | close(g_tun_fd);
208 | g_tun_fd = 0;
209 | }
210 | }
211 |
212 | ssize_t send_network_packet(const uint8_t *data, size_t size)
213 | {
214 | ssize_t nwrite;
215 |
216 | nwrite = tun_write_ip_packet(g_tun_fd, data, size);
217 | if (nwrite < 0) {
218 | fprintf(stderr, "Error writing into tun: %s\n",
219 | strerror(errno));
220 | return -1;
221 | }
222 |
223 | return nwrite;
224 | }
225 |
226 | char *fill_serial_param(char *buf, size_t size, accessory_id_t id)
227 | {
228 | simple_rt_config_t *config = get_simple_rt_config();
229 | uint32_t addr = htonl(SIMPLERT_NETWORK_ADDRESS | id);
230 |
231 | snprintf(buf, size, "%s,%s",
232 | inet_ntoa(*(struct in_addr *) &addr),
233 | config->nameserver);
234 |
235 | return buf;
236 | }
237 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/osx/tun.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 |
26 | #include
27 | #include
28 | #include
29 | #include
30 | #include
31 | #include
32 | #include
33 |
34 | #include "utils.h"
35 |
36 | #define MY_SC_UNIT 2234
37 |
38 | bool is_tun_present(void)
39 | {
40 | /* assume utun always present */
41 | return true;
42 | }
43 |
44 | int tun_alloc(char *dev_name, size_t dev_name_size)
45 | {
46 | int fd = 0;
47 | struct sockaddr_ctl sc = { 0 };
48 | struct ctl_info ctlInfo = { 0 };
49 |
50 | if (strlcpy(ctlInfo.ctl_name, UTUN_CONTROL_NAME, sizeof(ctlInfo.ctl_name)) >=
51 | sizeof(ctlInfo.ctl_name))
52 | {
53 | fprintf(stderr,"UTUN_CONTROL_NAME too long");
54 | return -1;
55 | }
56 |
57 | if ((fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL)) < 0) {
58 | perror("socket(SYSPROTO_CONTROL)");
59 | return -1;
60 | }
61 |
62 | if (ioctl(fd, CTLIOCGINFO, &ctlInfo) == -1) {
63 | perror("ioctl(CTLIOCGINFO)");
64 | close(fd);
65 | return -1;
66 | }
67 |
68 | sc.sc_id = ctlInfo.ctl_id;
69 | sc.sc_len = sizeof(sc);
70 | sc.sc_family = AF_SYSTEM;
71 | sc.ss_sysaddr = AF_SYS_CONTROL;
72 | sc.sc_unit = MY_SC_UNIT;
73 |
74 | // If the connect is successful, a tun%d device will be created,
75 | // where "%d" is our unit number -1
76 |
77 | if (connect(fd, (struct sockaddr *) &sc, sizeof(sc)) == -1) {
78 | perror("connect(AF_SYS_CONTROL)");
79 | close(fd);
80 | return -1;
81 | }
82 |
83 | memset(dev_name, 0, dev_name_size);
84 | snprintf(dev_name, dev_name_size, "utun%d", sc.sc_unit - 1);
85 |
86 | return fd;
87 | }
88 |
89 | ssize_t tun_read_ip_packet(int fd, uint8_t *packet, size_t size)
90 | {
91 | u_int32_t type;
92 | struct iovec iv[2];
93 |
94 | iv[0].iov_base = (uint8_t *) &type;
95 | iv[0].iov_len = sizeof(type);
96 | iv[1].iov_base = packet;
97 | iv[1].iov_len = size;
98 |
99 | return readv(fd, iv, ARRAY_SIZE(iv));
100 | }
101 |
102 | ssize_t tun_write_ip_packet(int fd, const uint8_t *packet, size_t size)
103 | {
104 | struct iovec iv[2];
105 | uint32_t type = htonl(AF_INET);
106 |
107 | iv[0].iov_base = (uint8_t *) &type;
108 | iv[0].iov_len = sizeof(type);
109 | iv[1].iov_base = (uint8_t *) packet;
110 | iv[1].iov_len = size;
111 |
112 | return writev (fd, iv, ARRAY_SIZE(iv));
113 | }
114 |
115 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/osx/utils.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include "utils.h"
20 |
21 | static simple_rt_config_t simple_rt_config = {
22 | .interface = "en0",
23 | .nameserver = DEFAULT_NAMESERVER,
24 | };
25 |
26 | simple_rt_config_t *get_simple_rt_config(void)
27 | {
28 | return &simple_rt_config;
29 | }
30 |
31 |
--------------------------------------------------------------------------------
/simple-rt-cli/src/unix_common/resolver.c:
--------------------------------------------------------------------------------
1 | /*
2 | * SimpleRT: Reverse tethering utility for Android
3 | * Copyright (C) 2016 Konstantin Menyaev
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 |
23 | #include "utils.h"
24 |
25 | const char *get_system_nameserver(void)
26 | {
27 | struct __res_state rs;
28 | static char buf[128];
29 |
30 | if (res_ninit(&rs) < 0) {
31 | goto end;
32 | }
33 |
34 | if (!rs.nscount) {
35 | goto end;
36 | }
37 |
38 | /* using first nameserver */
39 | memset(buf, 0, sizeof(buf));
40 | strncpy(buf, inet_ntoa(rs.nsaddr_list[0].sin_addr), sizeof(buf) - 1);
41 |
42 | return buf;
43 |
44 | end:
45 | fprintf(stderr, "Cannot find system nameserver. Default one will be used.\n");
46 | return DEFAULT_NAMESERVER;
47 | }
48 |
49 |
--------------------------------------------------------------------------------