EtherGuard-VPN/main.go

89 lines
2.1 KiB
Go

// +build !windows
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package main
import (
"flag"
"fmt"
"io/ioutil"
"os"
"runtime"
"github.com/KusakabeSi/EtherGuardVPN/ipc"
"github.com/KusakabeSi/EtherGuardVPN/path"
"github.com/KusakabeSi/EtherGuardVPN/tap"
yaml "gopkg.in/yaml.v2"
)
const (
ExitSetupSuccess = 0
ExitSetupFailed = 1
)
const (
ENV_EG_UAPI_FD = "EG_UAPI_FD"
ENV_EG_UAPI_DIR = "EG_UAPI_DIR"
)
func printUsage() {
fmt.Printf("Usage: %s -s/c CONFIG-PATH\n", os.Args[0])
}
func readYaml(filePath string, out interface{}) (err error) {
yamlFile, err := ioutil.ReadFile(filePath)
if err != nil {
return
}
err = yaml.Unmarshal(yamlFile, out)
return
}
var (
tconfig = flag.String("config", "", "Config path for the interface.")
mode = flag.String("mode", "", "Running mode. [super|edge|solve]")
printExample = flag.Bool("example", false, "Print example config")
bind = flag.String("bind", "linux", "UDP socket bind mode. [linux|std]\nYou may need std mode if you want to run Etherguard under WSL.")
nouapi = flag.Bool("no-uapi", false, "Disable UAPI\nWith UAPI, you can check etherguard status by \"wg\" command")
version = flag.Bool("version", false, "Show version")
help = flag.Bool("help", false, "Show this help")
)
func main() {
flag.Parse()
if *version == true {
fmt.Printf("etherguard-go %s\n%s-%s\n%s\n\nA full mesh layer 2 VPN powered by Floyd Warshall algorithm.\nInformation available at https://github.com/KusakabeSi/EtherGuardVPN.\nCopyright (C) Kusakabe Si <si@kskb.eu.org>.\n", Version, runtime.GOOS, runtime.GOARCH, tap.VPP_SUPPORT)
return
}
if *help == true {
flag.Usage()
return
}
uapiDir := os.Getenv(ENV_EG_UAPI_DIR)
if uapiDir != "" {
ipc.SetsocketDirectory(uapiDir)
}
var err error
switch *mode {
case "edge":
err = Edge(*tconfig, !*nouapi, *printExample, *bind)
case "super":
err = Super(*tconfig, !*nouapi, *printExample, *bind)
case "solve":
err = path.Solve(*tconfig, *printExample)
default:
flag.Usage()
}
if err != nil {
fmt.Fprintf(os.Stderr, "Error :%v\n", err)
os.Exit(1)
}
return
}