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main_windows.go
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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
*/
package main
import (
"fmt"
"os"
"os/signal"
"runtime"
"golang.org/x/sys/windows"
"golang.zx2c4.com/wireguard/conn"
"golang.zx2c4.com/wireguard/device"
"golang.zx2c4.com/wireguard/ipc"
"golang.zx2c4.com/wireguard/tun"
)
const (
ExitSetupSuccess = 0
ExitSetupFailed = 1
)
func main() {
// if len(os.Args) != 2 {
// os.Exit(ExitSetupFailed)
// }
if len(os.Args) == 2 && os.Args[1] == "--version" {
fmt.Printf("wireguard-go v%s\n\nUserspace WireGuard daemon for %s-%s.\nInformation available at https://www.wireguard.com.\nCopyright (C) Jason A. Donenfeld <Jason@zx2c4.com>.\n", Version, runtime.GOOS, runtime.GOARCH)
return
}
if len(os.Args) == 2 && os.Args[1] == "--keygen" {
pk, sk, err := device.GenerateDeviceKeys()
if err != nil {
logger.Errorf("Failed to create TUN device: %v", err)
}
fmt.Printf("public_key=%s\n", pk)
fmt.Printf("private_key=%s\n", sk)
return
}
// interfaceName := os.Args[1]
var interfaceName string
var config bool = false
var configFile string
nextArg := 1
for nextArg < len(os.Args) {
switch os.Args[nextArg] {
// case "-f", "--foreground":
// foreground = true
// nextArg++
case "-c", "--config_file":
config = true
nextArg++
configFile = os.Args[nextArg]
nextArg++
default:
interfaceName = os.Args[nextArg]
nextArg++
}
}
fmt.Fprintln(os.Stderr, "Warning: this is a test program for Windows, mainly used for debugging this Go package. For a real WireGuard for Windows client, the repo you want is <https://git.zx2c4.com/wireguard-windows/>, which includes this code as a module.")
logger := device.NewLogger(
device.LogLevelVerbose,
fmt.Sprintf("(%s) ", interfaceName),
)
logger.Verbosef("Starting wireguard-go version %s", Version)
tun, err := tun.CreateTUN(interfaceName, 0)
if err == nil {
realInterfaceName, err2 := tun.Name()
if err2 == nil {
interfaceName = realInterfaceName
}
} else {
logger.Errorf("Failed to create TUN device: %v", err)
os.Exit(ExitSetupFailed)
}
device := device.NewDevice(tun, conn.NewDefaultBind(), logger)
err = device.Up()
if err != nil {
logger.Errorf("Failed to bring up device: %v", err)
os.Exit(ExitSetupFailed)
}
logger.Verbosef("Device started")
if config {
f, err := os.Open(configFile)
if err != nil {
panic(err)
}
defer f.Close()
err = device.IpcSetOperation(f)
if err != nil {
panic(err)
}
}
device.PrintDevice()
logger.Verbosef("Device configured")
uapi, err := ipc.UAPIListen(interfaceName)
if err != nil {
logger.Errorf("Failed to listen on uapi socket: %v", err)
os.Exit(ExitSetupFailed)
}
errs := make(chan error)
term := make(chan os.Signal, 1)
go func() {
for {
conn, err := uapi.Accept()
if err != nil {
errs <- err
return
}
go device.IpcHandle(conn)
}
}()
logger.Verbosef("UAPI listener started")
// wait for program to terminate
signal.Notify(term, os.Interrupt)
signal.Notify(term, os.Kill)
signal.Notify(term, windows.SIGTERM)
select {
case <-term:
case <-errs:
case <-device.Wait():
}
// clean up
uapi.Close()
device.Close()
logger.Verbosef("Shutting down")
}