105 lines
2.1 KiB
Go
105 lines
2.1 KiB
Go
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package network
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import (
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"errors"
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"github.com/dotcloud/docker/pkg/netlink"
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"net"
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)
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var (
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ErrNoDefaultRoute = errors.New("no default network route found")
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)
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func InterfaceUp(name string) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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return netlink.NetworkLinkUp(iface)
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}
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func InterfaceDown(name string) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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return netlink.NetworkLinkDown(iface)
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}
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func ChangeInterfaceName(old, newName string) error {
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iface, err := net.InterfaceByName(old)
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if err != nil {
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return err
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}
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return netlink.NetworkChangeName(iface, newName)
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}
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func CreateVethPair(name1, name2 string) error {
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return netlink.NetworkCreateVethPair(name1, name2)
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}
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func SetInterfaceInNamespacePid(name string, nsPid int) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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return netlink.NetworkSetNsPid(iface, nsPid)
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}
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func SetInterfaceInNamespaceFd(name string, fd int) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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return netlink.NetworkSetNsFd(iface, fd)
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}
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func SetInterfaceMaster(name, master string) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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masterIface, err := net.InterfaceByName(master)
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if err != nil {
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return err
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}
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return netlink.NetworkSetMaster(iface, masterIface)
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}
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func SetDefaultGateway(ip string) error {
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return netlink.AddDefaultGw(net.ParseIP(ip))
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}
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func SetInterfaceIp(name string, rawIp string) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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ip, ipNet, err := net.ParseCIDR(rawIp)
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if err != nil {
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return err
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}
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return netlink.NetworkLinkAddIp(iface, ip, ipNet)
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}
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func SetMtu(name string, mtu int) error {
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iface, err := net.InterfaceByName(name)
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if err != nil {
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return err
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}
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return netlink.NetworkSetMTU(iface, mtu)
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}
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func GetDefaultMtu() (int, error) {
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routes, err := netlink.NetworkGetRoutes()
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if err != nil {
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return -1, err
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}
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for _, r := range routes {
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if r.Default {
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return r.Iface.MTU, nil
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}
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}
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return -1, ErrNoDefaultRoute
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}
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