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ATTENTION
================
Before doing anything please read the first FAQ point in this file, espicially if
you planing to build commercial software from this client. Also make sure you
understand the licenses of the code. OpenVPN for Android is GPL licensed. You
_CANNOT_ build a closed sourced custom UI application without acquiring a different
(paid) license for UI code.
The use of the AIDL API to control OpenVPN for Android from an external app is
not subject to the license. The remoteExample project is licensed under the Apache 2.0 license.
When in doubt mail me about it.
See the file todo.txt for ideas/not yet implemented features (and the bug tracker).
Build instructions:
- Install sdk, ndk, cmake (e.g. with Android studio), swig (3.0+)
Fetch the git submodules (the default urls for the submodules use ssh,
setup your own github ssh key or change the url to http in .gitmodules):
git submodule init
git submodule update
Build the project using "gradle build" (Or use Android Studio).
Android studio tends to the whole build of binaries in its sync gradle
phase to 15 minutes for initial gradle sync are completely normal.
The native build should with Windows and Linux but is rarely tested
since my main development platform is Mac Os X
FAQ
Q: Why are you not answering my questions about modifying
ics-openvpn/why do not help build my app on top of ics-openvpn? I
thought this is open source.
A: There are many people building/wanting to build commercial VPN
clients on top of my of my client. These client often do not even
honour the license my app or the license of OpenVPN. Even if these
modified software does honour the license I don't like doing unpaid
work/giving advise for free to commerical software developers.
If you have a legitimate non commercial open source project I will
gladly help you but please understand my initial reservations.
Q: How is the OpenVPN version different from normal OpenVPN
A: OpenVPN for Android uses a OpenVPN master branch + dual stack
client patches. A git repository of the OpenVPN source code and
changes is under: https://github.com/schwabe/openvpn/
Q: what is minivpn?
A: minivpn is only a executable thats links against libopenvpn which
is the normal openvpn build as library. It is done this way so the
Android Play/Store apk will treat the library as normal library and
update it on updates of the application. Also the application does
not need to take care of keeping minivpn up to date because it
contains no code. For almost all intents and purposes minivpn +
libopenvpn.so is the same as the normal openvpn binary
Q: How do I start a VPN by name from an external app?
A: public class StartOpenVPNActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final String EXTRA_NAME = "de.blinkt.openvpn.shortcutProfileName";
Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
shortcutIntent.setClassName("de.blinkt.openvpn", "de.blinkt.openvpn.LaunchVPN");
shortcutIntent.putExtra(EXTRA_NAME,"upb ssl");
startActivity(shortcutIntent);
}
}
or from the shell:
am start -a android.intent.action.MAIN -n de.blinkt.openvpn/.LaunchVPN -e de.blinkt.openvpn.shortcutProfileName Home
Q: How to control the app from an external app?
A: There is an AIDL interface. See src/de/blinkt/openvpn/api/IOpenVPNAPIService.aidl. See the normal Android documentation how to use AIDL.
See also the example project under remoteExample.
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