EtherGuard-VPN/tun/netstack/examples/http_server.go
Jason A. Donenfeld 1d4eb2727a netstack: introduce new module for gvisor tcp tun adapter
The Go linker isn't smart enough to prevent gvisor from being pulled
into modules that use other parts of tun/, due to the types exposed. So,
we put this into its own standalone module.

We use this as an opportunity to introduce some example code as well.

I'm still not happy that this not only clutters this repo's go.sum, but
all the other projects that consume it, but it seems like making a new
module inside of this repo will lead to even greater confusion.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-21 00:16:59 +01:00

49 lines
1.2 KiB
Go

// +build ignore
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019-2021 WireGuard LLC. All Rights Reserved.
*/
package main
import (
"golang.zx2c4.com/wireguard/device"
"golang.zx2c4.com/wireguard/tun/netstack"
"io"
"log"
"net"
"net/http"
)
func main() {
tun, tnet, err := netstack.CreateNetTUN(
[]net.IP{net.ParseIP("192.168.4.29")},
[]net.IP{net.ParseIP("8.8.8.8"), net.ParseIP("8.8.4.4")},
1420,
)
if err != nil {
log.Panic(err)
}
dev := device.NewDevice(tun, &device.Logger{log.Default(), log.Default(), log.Default()})
dev.IpcSet(`private_key=a8dac1d8a70a751f0f699fb14ba1cff7b79cf4fbd8f09f44c6e6a90d0369604f
public_key=25123c5dcd3328ff645e4f2a3fce0d754400d3887a0cb7c56f0267e20fbf3c5b
endpoint=163.172.161.0:12912
allowed_ip=0.0.0.0/0
persistent_keepalive_interval=25
`)
dev.Up()
listener, err := tnet.ListenTCP(&net.TCPAddr{Port: 80})
if err != nil {
log.Panicln(err)
}
http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
log.Printf("> %s - %s - %s", request.RemoteAddr, request.URL.String(), request.UserAgent())
io.WriteString(writer, "Hello from userspace TCP!")
})
err = http.Serve(listener, nil)
if err != nil {
log.Panicln(err)
}
}