MAUI/Android/iOS support

[stevehansen]

Love that this targets .NET 6/7 but it seems when trying to use this on Android it just fails to load:

Loaded assembly: /data/data/test/files/.__override__/Geralt.dll [External]
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'randombytes_buf' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_library_version_major' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_library_version_minor' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_version_string' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_set_misuse_handler' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_init' may fail
[monodroid-assembly] Shared library 'libsodium' not loaded, p/invoke 'sodium_library_version_major' may fail
**System.PlatformNotSupportedException:** 'Unable to access the libsodium DLL. Geralt may not be supported on this platform, or this machine may be missing the Visual C++ Redistributable on Windows.'

What do I need to do to get this working on Android?

[samuel-lucas6]

Glad you like the library. Support for Android/iOS would be very nice, but I unfortunately don't have any experience with either, and the libsodium NuGet doesn't provide pre-compiled binaries for them. You should be able to use a build script from here, but I'm not sure if anything else needs to be done.

[samuel-lucas6]

@stevehansen Have you had any luck?

[stevehansen]

@samuel-lucas6 https://stackoverflow.com/a/56297065/295296 found some instructions here, about building the libsodium.so in and embedding them, I tried some of it last week but didn't succeed yet (instruction for Xamarin, not completely compatible with MAUI). I'll see if I can make another attempt this week.

[Jack-Edwards]

Looking at the swift-sodium repo, it looks like the right way to do this would be to include a pre-compiled instance of libsodium in the project.

swift-sodium Clibsodium.xcframework

Or perhaps there is a way to link repos and include a compilation pre-build step in the .csproj. Though this seems prone to failure in case a backwards-incompatible change is introduced in libsodium.

[samuel-lucas6]

Ok it seems I need to implement a change NSec did for iOS support.

[shipitfaster]

Bumping this thread as I, too, would like to run on Android. Were @Jack-Edwards or @stevehansen able to find an alternate solution?

[samuel-lucas6]

I've opened a discussion in the libsodium repo. Assuming progress is made there, the issue becomes how to implement support here if any changes are required and how to test that it works.

[samuel-lucas6]

Seems like the new NuGet package supports win-arm64 and ios-arm64 but still not Android.