bin/netemul_runner/test/meta/netstack_socks_run.cmx

{
    "program": {
        "binary": "test/netstack_socks"
    },
    "sandbox": {
        "services": [
            "fuchsia.netemul.environment.ManagedEnvironment",
            "fuchsia.netemul.network.NetworkContext",
            "fuchsia.netemul.bus.BusManager",
            "fuchsia.netstack.Netstack",
            "fuchsia.net.SocketProvider"
        ]
    }
}