Error when developing WSL plugin in Rust

[mveril]

Hello,

I am currently developing a Rust framework for WSL plugin development, building upon the wsl-plugin-sample. Despite following the setup, I've encountered an error when installing the sample Rust plugin:

Error code: Wsl/Service/CreateInstance/CreateVm/Plugin/0x8007007f

I'm having trouble debugging this error. Normally, the entry point should be well defined and I expected some logs to be generated in the specified log file. However, it appears that the WSL service does not recognize the entry point of my plugin.

Here is the entry point definition:

#[no_mangle]
pub extern "C" fn WSLPLUGINAPI_ENTRYPOINTV1(api: *const WSLPluginAPIV1, hooks: *mut WSLPluginHooksV1) -> HRESULT {
    create_plugin(api, hooks).into()
}

My project is open source, and I encourage you to review the code here if the information provided is insufficient.

Could you assist in resolving this issue? Any guidance or suggestions would be greatly appreciated.

Thank you in advance for your assistance.

[elsaco]

After building, signing, and registering the plugin PATH _NOT_FOUND error is thrown when launching WSL:

A fatal error was returned by plugin 'wsl-plugin-rs'
Error code: Wsl/Service/CreateInstance/CreateVm/Plugin/ERROR_PATH_NOT_FOUND

[process exited with code 4294967295 (0xffffffff)]
You can now close this terminal with Ctrl+D, or press Enter to restart.

[mveril]

Thanks for your response @elsaco. I reproduced your issue by changing the registry value of the plugin.
Can you check your registry at HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Lxss\Plugins please ? As described on the readme of the wsl-plugin-sample., The value of wsl-plugin-rs at this key should be the full path of the dll.

[mveril]

I solved the issue. In the header file, the entry point is defined as:

#define WSLPLUGINAPI_ENTRYPOINTV1 WSLPluginAPIV1_EntryPoint

Thus, the actual name of the entry point is WSLPluginAPIV1_EntryPoint not WSLPLUGINAPI_ENTRYPOINTV1.
The name is replaced by the preprocessor using the macro.
So in the context of my rust code I need to use WSLPluginAPIV1_EntryPoint.