Native libraries do not support 16 KB page alignment (required by newer Android devices)

[burakcanyildirim]

I’m using openvpn_flutter 1.3.4 and noticed that several of the included native libraires (.so files) do not support a 16 KB memory page alignment, only 4 KB. Because newer Android devices require 16 KB page size for loading native libraries, this causes failures or prevents the app from working correctly.

Affected libraries include:

• libopenvpn.so
• libopvpnutil.so
• libovpnexec.so
• libovpnutil.so

[AliSamavi]

I’m facing the same issue with openvpn_flutter 1.3.4.
Google Play Console recently updated its policies and now requires native libraries to support 16 KB memory page alignment.
Since the .so files included in this package (e.g., libopenvpn.so, libopvpnutil.so, libovpnexec.so) only support 4 KB, the app fails to work on newer Android devices and also triggers policy warnings in Google Play Console.

[Spokplacenta]

openvpn_flutter 1.3.5 will solved the problem. In the meantime, you can add to your pubspec :
openvpn_flutter:
git:
url: https://github.com/nizwar/openvpn_flutter.git
ref: android_16kb

#142

[meisamvalas]

Do you have any estimated release date for version 1.3.5?

openvpn_flutter 1.3.5 will solved the problem. In the meantime, you can add to your pubspec : openvpn_flutter: git: url: https://github.com/nizwar/openvpn_flutter.git ref: android_16kb

#142

[kingace2056]

openvpn_flutter 1.3.5 will solved the problem. In the meantime, you can add to your pubspec : openvpn_flutter: git: url: https://github.com/nizwar/openvpn_flutter.git ref: android_16kb

#142

@Spokplacenta , Did you manage to use vpngate servers with this version of package?

[Spokplacenta]

openvpn_flutter 1.3.5 will solved the problem. In the meantime, you can add to your pubspec : openvpn_flutter: git: url: https://github.com/nizwar/openvpn_flutter.git ref: android_16kb

#142

@Spokplacenta , Did you manage to use vpngate servers with this version of package?

Yes there is no problem with the OpenVPN config file you can found on vpngate.com

[Syed-Bilawal]

@Spokplacenta i have used the refrence @nizwar gave for 16 kb i used that i clear the chache even delleted the gradle folder and make release apk and anylize the apk with androide studio anylizer than it does not show any alighnment and if try to make it 16kb manualy it converts in 16 kb but while testing when i try to connect with the server it imidiatly disconnects not show any errors in log
can you guide me to solve this...

[kingace2056]

@Spokplacenta I found the solution for vpngate servers.
this is method I am using to tweak config files
Anyone who migrated to android_16kb ref can use this:

 static String _ensureDataCiphers(String cfg) {
    try {
      if (cfg.contains('data-ciphers')) return cfg;

      // Insert after the cipher directive using replaceFirst to avoid multiple replacements
      if (cfg.contains('cipher AES-128-CBC')) {
        cfg = cfg.replaceFirst('cipher AES-128-CBC', """cipher AES-128-CBC
data-ciphers 'AES-128-CBC'
data-ciphers-fallback 'AES-128-CBC'""");
      }

      if (cfg.contains('cipher AES-256-CBC')) {
        cfg = cfg.replaceFirst('cipher AES-256-CBC', """cipher AES-256-CBC
data-ciphers 'AES-256-CBC'
data-ciphers-fallback 'AES-256-CBC'""");
      }

      return cfg;
    } catch (e) {
      log('❗ Config normalization failed: $e');
      return cfg;
    }