示例#1
0
文件: kvm.go 项目: vincentvdk/rkt
// setupTapDevice creates persistent tap devices
// and returns a newly created netlink.Link structure
func setupTapDevice() (netlink.Link, error) {
	ifName, err := tuntap.CreatePersistentIface(tuntap.Tap)
	if err != nil {
		return nil, fmt.Errorf("tuntap persist %v", err)
	}
	link, err := netlink.LinkByName(ifName)
	if err != nil {
		return nil, fmt.Errorf("cannot find link %q: %v", ifName, err)
	}
	err = netlink.LinkSetUp(link)
	if err != nil {
		return nil, fmt.Errorf("cannot set link up %q: %v", ifName, err)
	}
	return link, nil
}
示例#2
0
文件: kvm.go 项目: harpe1999/rkt
// setupTapDevice creates persistent tap devices
// and returns a newly created netlink.Link structure
func setupTapDevice(podID types.UUID) (netlink.Link, error) {
	// network device names are limited to 16 characters
	// the suffix %d will be replaced by the kernel with a suitable number
	nameTemplate := fmt.Sprintf("rkt-%s-tap%%d", podID.String()[0:4])
	ifName, err := tuntap.CreatePersistentIface(nameTemplate, tuntap.Tap)
	if err != nil {
		return nil, fmt.Errorf("tuntap persist %v", err)
	}
	link, err := netlink.LinkByName(ifName)
	if err != nil {
		return nil, fmt.Errorf("cannot find link %q: %v", ifName, err)
	}
	err = netlink.LinkSetUp(link)
	if err != nil {
		return nil, fmt.Errorf("cannot set link up %q: %v", ifName, err)
	}
	return link, nil
}