How to build miniopenvpn used in debug-openvpn.sh?

[scruel]

Hi, I want to build openvpn binaries on Android, however I couldn't find anything related in both OpenVPN3 official repo or here.

I can only find related usages about miniopenvpn, but not build instructions:
https://github.com/schwabe/ics-openvpn/blob/4473ad1f1bc49c166fb8ab92ee7a7b91c608135e/main/misc/prepareovpn3.sh
https://github.com/schwabe/ics-openvpn/blob/4473ad1f1bc49c166fb8ab92ee7a7b91c608135e/misc/debug-openvpn.sh

Couldn't find miniopenvpn on my phone:

/data/data/de.blinkt.openvpn/cache $ ls
logcache.dat  mgmtsocket

And related file is just empty:
https://github.com/schwabe/ics-openvpn/blob/4473ad1f1bc49c166fb8ab92ee7a7b91c608135e/main/src/main/cpp/minivpn/minivpn.c

@schwabe All related android build issues are pointed to your repo by yourself, so hope you can help a little bit more! Thanks!

[schwabe]

I have not used that debug-openvpn.sh script in years. It used to work but I don't think it still works. Current binaries are build using cmake and using the CmakeLists.txt in the cpp directolry.

[scruel]

https://github.com/schwabe/ics-openvpn/tree/011bcb7922f5e23a04322f91318704b1e5ab231d
Oh, 12 years ago

[scruel]

[schwabe]

I never tried to build it outside Android studio/gradlew build. You can also take a look at the github actions (https://github.com/schwabe/ics-openvpn/blob/master/.github/workflows/build.yaml) to get an idea how to build using command line. It is probably possible to build the code outside Android studio/gradlew but the current cmake file is probably not very useful as it has building OpenVPN with TARGET_ANDROID hardcoded. And TARGET_ANDROID pretty much requires OpenVPN to run with an app like mine to work as it effectively puts all network configuration into the management interface

[scruel]

Hi again, I've built it successfully:

$ ./pie_openvpn.arm64-v8a  --version
OpenVPN 2.7-icsopenvpn [git:icsopenvpn/v0.7.51-0-g0ad44976] arm64-v8a [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on May 15 2024
library versions: OpenSSL 3.2.0 23 Nov 2023, LZO 2.10
Originally developed by James Yonan
Copyright (C) 2002-2023 OpenVPN Inc <[email protected]>

But how can I switch the core to openvpn3 rather than openvpn2?