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## Embeddable WireGuard Tunnel Library
This allows embedding WireGuard as a service inside of another application. Build `tunnel.dll` by running `./build.bat` in this folder. The first time you run it, it will invoke `..\build.bat` simply for downloading dependencies. After, you should have `amd64/tunnel.dll` and `x86/tunnel.dll`.
The basic setup to use `tunnel.dll` is:
##### 1. Install a service with these parameters:
Service Name: "SomeServiceName"
Display Name: "Some Service Name"
Service Type: SERVICE_WIN32_OWN_PROCESS
Start Type: StartAutomatic
Error Control: ErrorNormal,
Dependencies: [ "Nsi" ]
Sid Type: SERVICE_SID_TYPE_UNRESTRICTED
Executable: "C:\path\to\example\vpnclient.exe /service configfile.conf"
Some of these may have to be changed with `ChangeServiceConfig2` after the
initial call to `CreateService` The `SERVICE_SID_TYPE_UNRESTRICTED` parameter
is absolutely essential; do not forget it.
##### 2. Have your program's main function handle the `/service` switch:
if (!strcmp(argv[1], "/service") && argc == 3) {
HMODULE tunnel_lib = LoadLibrary("tunnel.dll");
if (!tunnel_lib)
abort();
tunnel_proc_t tunnel_proc = (tunnel_proc_t)GetProcAddress(tunnel_lib, "WireGuardTunnelService");
if (!tunnel_proc)
abort();
struct go_string conf_file = {
.str = argv[2],
.n = strlen(argv[2])
};
return tunnel_proc(conf_file);
}
##### 3. Scoop up logs by implementing a ringlogger format reader.
##### 4. Talk to the service over its named pipe.
There is a sample implementation of bits and pieces of this inside of the `csharp\` directory.
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