ref: github.com/google/gvisor/blob/91f58d2cc/pkg/tcpip/sample/tun_tcp_echo/main.go#L102.

New creates a new fd-based endpoint.

also: github.com/google/gvisor/blob/adbdac747/runsc/boot/loader.go#L1132 github.com/FlowerWrong/tun2socks/blob/1045a49618/cmd/netstack/main.go github.com/zen-of-proxy/go-tun2io/blob/c08b329b8/tun2io/util.go github.com/WireGuard/wireguard-go/blob/42c9af4/tun/netstack/tun.go github.com/telepresenceio/telepresence/pull/2709.

ref: github.com/brewlin/net-protocol/blob/ec64e5f899/internal/endpoint/endpoint.go#L20.

in bytes; some sufficient value.

BufConfig defines the shape of the vectorised view used to read packets from the NIC.

Options specify the details about the fd-based endpoint to be created.

Pong is a callback function to send a reply to the client.