package nebula import ( "fmt" "net" "syscall" "golang.org/x/sys/unix" ) func NewListenConfig(multi bool) net.ListenConfig { return net.ListenConfig{ Control: func(network, address string, c syscall.RawConn) error { if multi { var controlErr error err := c.Control(func(fd uintptr) { if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil { controlErr = fmt.Errorf("SO_REUSEPORT failed: %v", err) return } }) if err != nil { return err } if controlErr != nil { return controlErr } } return nil }, } } func (u *udpConn) Rebind() error { return nil }