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package main
import (
"fmt"
"log"
"os"
"runtime"
)
func printUsage() {
fmt.Printf("usage:\n")
fmt.Printf("%s [-f/--foreground] INTERFACE-NAME\n", os.Args[0])
}
func main() {
// parse arguments
var foreground bool
var interfaceName string
if len(os.Args) < 2 || len(os.Args) > 3 {
printUsage()
return
}
switch os.Args[1] {
case "-f", "--foreground":
foreground = true
if len(os.Args) != 3 {
printUsage()
return
}
interfaceName = os.Args[2]
default:
foreground = false
if len(os.Args) != 2 {
printUsage()
return
}
interfaceName = os.Args[1]
}
// daemonize the process
if !foreground {
err := Daemonize()
if err != nil {
log.Println("Failed to daemonize:", err)
}
return
}
// increase number of go workers (for Go <1.5)
runtime.GOMAXPROCS(runtime.NumCPU())
// open TUN device
tun, err := CreateTUN(interfaceName)
if err != nil {
log.Println("Failed to create tun device:", err)
return
}
// create wireguard device
device := NewDevice(tun, LogLevelDebug)
logInfo := device.log.Info
logError := device.log.Error
logInfo.Println("Starting device")
// start configuration lister
uapi, err := NewUAPIListener(interfaceName)
if err != nil {
logError.Fatal("UAPI listen error:", err)
}
defer uapi.Close()
go func() {
for {
conn, err := uapi.Accept()
if err != nil {
logError.Fatal("UAPI accept error:", err)
}
go ipcHandle(device, conn)
}
}()
device.Wait()
}
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