1 files changed, 0 insertions, 293 deletions
diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go
deleted file mode 100644
index f8781cf19..000000000
--- a/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go
+++ /dev/null
@@ -1,293 +0,0 @@
-// Copyright 2015 CNI authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package ip
-
-import (
-	"crypto/rand"
-	"errors"
-	"fmt"
-	"net"
-	"os"
-
-	"github.com/safchain/ethtool"
-	"github.com/vishvananda/netlink"
-
-	"github.com/containernetworking/plugins/pkg/ns"
-	"github.com/containernetworking/plugins/pkg/utils/hwaddr"
-	"github.com/containernetworking/plugins/pkg/utils/sysctl"
-)
-
-var (
-	ErrLinkNotFound = errors.New("link not found")
-)
-
-func makeVethPair(name, peer string, mtu int) (netlink.Link, error) {
-	veth := &netlink.Veth{
-		LinkAttrs: netlink.LinkAttrs{
-			Name:  name,
-			Flags: net.FlagUp,
-			MTU:   mtu,
-		},
-		PeerName: peer,
-	}
-	if err := netlink.LinkAdd(veth); err != nil {
-		return nil, err
-	}
-	// Re-fetch the link to get its creation-time parameters, e.g. index and mac
-	veth2, err := netlink.LinkByName(name)
-	if err != nil {
-		netlink.LinkDel(veth) // try and clean up the link if possible.
-		return nil, err
-	}
-
-	return veth2, nil
-}
-
-func peerExists(name string) bool {
-	if _, err := netlink.LinkByName(name); err != nil {
-		return false
-	}
-	return true
-}
-
-func makeVeth(name, vethPeerName string, mtu int) (peerName string, veth netlink.Link, err error) {
-	for i := 0; i < 10; i++ {
-		if vethPeerName != "" {
-			peerName = vethPeerName
-		} else {
-			peerName, err = RandomVethName()
-			if err != nil {
-				return
-			}
-		}
-
-		veth, err = makeVethPair(name, peerName, mtu)
-		switch {
-		case err == nil:
-			return
-
-		case os.IsExist(err):
-			if peerExists(peerName) && vethPeerName == "" {
-				continue
-			}
-			err = fmt.Errorf("container veth name provided (%v) already exists", name)
-			return
-
-		default:
-			err = fmt.Errorf("failed to make veth pair: %v", err)
-			return
-		}
-	}
-
-	// should really never be hit
-	err = fmt.Errorf("failed to find a unique veth name")
-	return
-}
-
-// RandomVethName returns string "veth" with random prefix (hashed from entropy)
-func RandomVethName() (string, error) {
-	entropy := make([]byte, 4)
-	_, err := rand.Reader.Read(entropy)
-	if err != nil {
-		return "", fmt.Errorf("failed to generate random veth name: %v", err)
-	}
-
-	// NetworkManager (recent versions) will ignore veth devices that start with "veth"
-	return fmt.Sprintf("veth%x", entropy), nil
-}
-
-func RenameLink(curName, newName string) error {
-	link, err := netlink.LinkByName(curName)
-	if err == nil {
-		err = netlink.LinkSetName(link, newName)
-	}
-	return err
-}
-
-func ifaceFromNetlinkLink(l netlink.Link) net.Interface {
-	a := l.Attrs()
-	return net.Interface{
-		Index:        a.Index,
-		MTU:          a.MTU,
-		Name:         a.Name,
-		HardwareAddr: a.HardwareAddr,
-		Flags:        a.Flags,
-	}
-}
-
-// SetupVethWithName sets up a pair of virtual ethernet devices.
-// Call SetupVethWithName from inside the container netns.  It will create both veth
-// devices and move the host-side veth into the provided hostNS namespace.
-// hostVethName: If hostVethName is not specified, the host-side veth name will use a random string.
-// On success, SetupVethWithName returns (hostVeth, containerVeth, nil)
-func SetupVethWithName(contVethName, hostVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error) {
-	hostVethName, contVeth, err := makeVeth(contVethName, hostVethName, mtu)
-	if err != nil {
-		return net.Interface{}, net.Interface{}, err
-	}
-
-	if err = netlink.LinkSetUp(contVeth); err != nil {
-		return net.Interface{}, net.Interface{}, fmt.Errorf("failed to set %q up: %v", contVethName, err)
-	}
-
-	hostVeth, err := netlink.LinkByName(hostVethName)
-	if err != nil {
-		return net.Interface{}, net.Interface{}, fmt.Errorf("failed to lookup %q: %v", hostVethName, err)
-	}
-
-	if err = netlink.LinkSetNsFd(hostVeth, int(hostNS.Fd())); err != nil {
-		return net.Interface{}, net.Interface{}, fmt.Errorf("failed to move veth to host netns: %v", err)
-	}
-
-	err = hostNS.Do(func(_ ns.NetNS) error {
-		hostVeth, err = netlink.LinkByName(hostVethName)
-		if err != nil {
-			return fmt.Errorf("failed to lookup %q in %q: %v", hostVethName, hostNS.Path(), err)
-		}
-
-		if err = netlink.LinkSetUp(hostVeth); err != nil {
-			return fmt.Errorf("failed to set %q up: %v", hostVethName, err)
-		}
-
-		// we want to own the routes for this interface
-		_, _ = sysctl.Sysctl(fmt.Sprintf("net/ipv6/conf/%s/accept_ra", hostVethName), "0")
-		return nil
-	})
-	if err != nil {
-		return net.Interface{}, net.Interface{}, err
-	}
-	return ifaceFromNetlinkLink(hostVeth), ifaceFromNetlinkLink(contVeth), nil
-}
-
-// SetupVeth sets up a pair of virtual ethernet devices.
-// Call SetupVeth from inside the container netns.  It will create both veth
-// devices and move the host-side veth into the provided hostNS namespace.
-// On success, SetupVeth returns (hostVeth, containerVeth, nil)
-func SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error) {
-	return SetupVethWithName(contVethName, "", mtu, hostNS)
-}
-
-// DelLinkByName removes an interface link.
-func DelLinkByName(ifName string) error {
-	iface, err := netlink.LinkByName(ifName)
-	if err != nil {
-		if _, ok := err.(netlink.LinkNotFoundError); ok {
-			return ErrLinkNotFound
-		}
-		return fmt.Errorf("failed to lookup %q: %v", ifName, err)
-	}
-
-	if err = netlink.LinkDel(iface); err != nil {
-		return fmt.Errorf("failed to delete %q: %v", ifName, err)
-	}
-
-	return nil
-}
-
-// DelLinkByNameAddr remove an interface and returns its addresses
-func DelLinkByNameAddr(ifName string) ([]*net.IPNet, error) {
-	iface, err := netlink.LinkByName(ifName)
-	if err != nil {
-		if _, ok := err.(netlink.LinkNotFoundError); ok {
-			return nil, ErrLinkNotFound
-		}
-		return nil, fmt.Errorf("failed to lookup %q: %v", ifName, err)
-	}
-
-	addrs, err := netlink.AddrList(iface, netlink.FAMILY_ALL)
-	if err != nil {
-		return nil, fmt.Errorf("failed to get IP addresses for %q: %v", ifName, err)
-	}
-
-	if err = netlink.LinkDel(iface); err != nil {
-		return nil, fmt.Errorf("failed to delete %q: %v", ifName, err)
-	}
-
-	out := []*net.IPNet{}
-	for _, addr := range addrs {
-		if addr.IP.IsGlobalUnicast() {
-			out = append(out, addr.IPNet)
-		}
-	}
-
-	return out, nil
-}
-
-func SetHWAddrByIP(ifName string, ip4 net.IP, ip6 net.IP) error {
-	iface, err := netlink.LinkByName(ifName)
-	if err != nil {
-		return fmt.Errorf("failed to lookup %q: %v", ifName, err)
-	}
-
-	switch {
-	case ip4 == nil && ip6 == nil:
-		return fmt.Errorf("neither ip4 or ip6 specified")
-
-	case ip4 != nil:
-		{
-			hwAddr, err := hwaddr.GenerateHardwareAddr4(ip4, hwaddr.PrivateMACPrefix)
-			if err != nil {
-				return fmt.Errorf("failed to generate hardware addr: %v", err)
-			}
-			if err = netlink.LinkSetHardwareAddr(iface, hwAddr); err != nil {
-				return fmt.Errorf("failed to add hardware addr to %q: %v", ifName, err)
-			}
-		}
-	case ip6 != nil:
-		// TODO: IPv6
-	}
-
-	return nil
-}
-
-// GetVethPeerIfindex returns the veth link object, the peer ifindex of the
-// veth, or an error. This peer ifindex will only be valid in the peer's
-// network namespace.
-func GetVethPeerIfindex(ifName string) (netlink.Link, int, error) {
-	link, err := netlink.LinkByName(ifName)
-	if err != nil {
-		return nil, -1, fmt.Errorf("could not look up %q: %v", ifName, err)
-	}
-	if _, ok := link.(*netlink.Veth); !ok {
-		return nil, -1, fmt.Errorf("interface %q was not a veth interface", ifName)
-	}
-
-	// veth supports IFLA_LINK (what vishvananda/netlink calls ParentIndex)
-	// on 4.1 and higher kernels
-	peerIndex := link.Attrs().ParentIndex
-	if peerIndex <= 0 {
-		// Fall back to ethtool for 4.0 and earlier kernels
-		e, err := ethtool.NewEthtool()
-		if err != nil {
-			return nil, -1, fmt.Errorf("failed to initialize ethtool: %v", err)
-		}
-		defer e.Close()
-
-		stats, err := e.Stats(link.Attrs().Name)
-		if err != nil {
-			return nil, -1, fmt.Errorf("failed to request ethtool stats: %v", err)
-		}
-		n, ok := stats["peer_ifindex"]
-		if !ok {
-			return nil, -1, fmt.Errorf("failed to find 'peer_ifindex' in ethtool stats")
-		}
-		if n > 32767 || n == 0 {
-			return nil, -1, fmt.Errorf("invalid 'peer_ifindex' %d", n)
-		}
-		peerIndex = int(n)
-	}
-
-	return link, peerIndex, nil
-}