Merge pull request #4451 from giuseppe/set-mac

podman: add support for specifying MAC
2025-10-16 18:53:19 +08:00 · 2019-11-07 20:26:14 +01:00
parent 347499778c 82e4116e57
commit d919961f62
28 changed files with 841 additions and 186 deletions
--- a/3
+++ b/3
@ -522,6 +522,9 @@ vendor:
 		$(GO) mod vendor && \
 		$(GO) mod verify

+vendor-in-container:
+	podman run --privileged --rm --env HOME=/root -v `pwd`:/src -w /src docker.io/library/golang:1.12 make vendor
+
 .PHONY: \
 	.gopathok \
 	binaries \
--- a/cmd/podman/cliconfig/config.go
+++ b/cmd/podman/cliconfig/config.go
@ -467,14 +467,15 @@ type RestartValues struct {

 type RestoreValues struct {
 	PodmanCommand
-	All            bool
-	Keep           bool
-	Latest         bool
-	TcpEstablished bool
-	Import         string
-	Name           string
-	IgnoreRootfs   bool
-	IgnoreStaticIP bool
+	All             bool
+	Keep            bool
+	Latest          bool
+	TcpEstablished  bool
+	Import          string
+	Name            string
+	IgnoreRootfs    bool
+	IgnoreStaticIP  bool
+	IgnoreStaticMAC bool
 }

 type RmValues struct {
--- a/cmd/podman/common.go
+++ b/cmd/podman/common.go
@ -328,7 +328,7 @@ func getCreateFlags(c *cliconfig.PodmanCommand) {
 	)
 	createFlags.String(
 		"mac-address", "",
-		"Container MAC address (e.g. 92:d0:c6:0a:29:33), not currently supported",
+		"Container MAC address (e.g. 92:d0:c6:0a:29:33)",
 	)
 	createFlags.StringP(
 		"memory", "m", "",
--- a/cmd/podman/restore.go
+++ b/cmd/podman/restore.go
@ -47,6 +47,7 @@ func init() {
 	flags.StringVarP(&restoreCommand.Name, "name", "n", "", "Specify new name for container restored from exported checkpoint (only works with --import)")
 	flags.BoolVar(&restoreCommand.IgnoreRootfs, "ignore-rootfs", false, "Do not apply root file-system changes when importing from exported checkpoint")
 	flags.BoolVar(&restoreCommand.IgnoreStaticIP, "ignore-static-ip", false, "Ignore IP address set via --static-ip")
+	flags.BoolVar(&restoreCommand.IgnoreStaticMAC, "ignore-static-mac", false, "Ignore MAC address set via --mac-address")

 	markFlagHiddenForRemoteClient("latest", flags)
 }
--- a/cmd/podman/shared/create.go
+++ b/cmd/podman/shared/create.go
@ -336,10 +336,6 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 		return nil, err
 	}

-	if c.String("mac-address") != "" {
-		return nil, errors.Errorf("--mac-address option not currently supported")
-	}
-
 	imageID := ""

 	inputCommand = c.InputArgs[1:]
--- a/cni/87-podman-bridge.conflist
+++ b/cni/87-podman-bridge.conflist
@ -33,6 +33,9 @@
 	{
            "type": "firewall",
 	    "backend": "iptables"
+	},
+	{
+            "type": "tuning"
 	}
    ]
 }
--- a/completions/bash/podman
+++ b/completions/bash/podman
@ -877,6 +877,7 @@ _podman_container_restore() {
 	  --tcp-established
 	  --ignore-rootfs
 	  --ignore-static-ip
+	  --ignore-static-mac
     "
     case "$prev" in
        -i|--import)
--- a/docs/source/markdown/podman-container-restore.1.md
+++ b/docs/source/markdown/podman-container-restore.1.md
@ -76,6 +76,15 @@ a container is restored multiple times from an exported checkpoint with **--name
 Using **--ignore-static-ip** tells Podman to ignore the IP address if it was configured
 with **--ip** during container creation.

+**--ignore-static-mac**
+
+If the container was started with **--mac-address** the restored container also
+tries to use that MAC address and restore fails if that MAC address is already
+in use. This can happen, if a container is restored multiple times from an
+exported checkpoint with **--name, -n**.
+
+Using **--ignore-static-mac** tells Podman to ignore the MAC address if it was
+configured with **--mac-address** during container creation.
 ## EXAMPLE

 podman container restore mywebserver
--- a/go.mod
+++ b/go.mod
@ -9,7 +9,7 @@ require (
 	github.com/checkpoint-restore/go-criu v0.0.0-20190109184317-bdb7599cd87b
 	github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd // indirect
 	github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc // indirect
-	github.com/containernetworking/cni v0.7.1
+	github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784
 	github.com/containernetworking/plugins v0.8.2
 	github.com/containers/buildah v1.11.5-0.20191031204705-20e92ffe0982
 	github.com/containers/image/v5 v5.0.0
@ -17,7 +17,7 @@ require (
 	github.com/containers/storage v1.13.5
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
-	github.com/cri-o/ocicni v0.1.1-0.20190702175919-7762645d18ca
+	github.com/cri-o/ocicni v0.1.1-0.20190920040751-deac903fd99b
 	github.com/cyphar/filepath-securejoin v0.2.2
 	github.com/davecgh/go-spew v1.1.1
 	github.com/docker/distribution v2.7.1+incompatible
--- a/go.sum
+++ b/go.sum
@ -53,6 +53,8 @@ github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL
 github.com/containernetworking/cni v0.7.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
 github.com/containernetworking/cni v0.7.1 h1:fE3r16wpSEyaqY4Z4oFrLMmIGfBYIKpPrHK31EJ9FzE=
 github.com/containernetworking/cni v0.7.1/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
+github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784 h1:rqUVLD8I859xRgUx/WMC3v7QAFqbLKZbs+0kqYboRJc=
+github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
 github.com/containernetworking/plugins v0.8.2 h1:5lnwfsAYO+V7yXhysJKy3E1A2Gy9oVut031zfdOzI9w=
 github.com/containernetworking/plugins v0.8.2/go.mod h1:TxALKWZpWL79BC3GOYKJzzXr7U8R23PdhwaLp6F3adc=
 github.com/containers/buildah v1.11.4-0.20191028173731-21b4778b359e h1:iDavHEx5Yr7o+0l6495Ya6N0YEPplIUZuWC2e14baDM=
@ -83,6 +85,8 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cri-o/ocicni v0.1.1-0.20190702175919-7762645d18ca h1:CJstDqYy9ClWuPcDHMTCAiUS+ckekluYetGR2iYYWuo=
 github.com/cri-o/ocicni v0.1.1-0.20190702175919-7762645d18ca/go.mod h1:BO0al9TKber3XUTucLzKgoG5sq8qiOB41H7zSdfw6r8=
+github.com/cri-o/ocicni v0.1.1-0.20190920040751-deac903fd99b h1:SgS+WV10y2Bubuy2HquSBori6DXj9sqRN77Hgs5H7Qc=
+github.com/cri-o/ocicni v0.1.1-0.20190920040751-deac903fd99b/go.mod h1:ZOuIEOp/3MB1eCBWANnNxM3zUA3NWh76wSRCsnKAg2c=
 github.com/cyphar/filepath-securejoin v0.2.2 h1:jCwT2GTP+PY5nBz3c/YL5PAIbusElVrPujOBSCj8xRg=
 github.com/cyphar/filepath-securejoin v0.2.2/go.mod h1:FpkQEhXnPnOthhzymB7CGsFk2G9VLXONKD9G7QGMM+4=
 github.com/d2g/dhcp4 v0.0.0-20170904100407-a1d1b6c41b1c/go.mod h1:Ct2BUK8SB0YC1SMSibvLzxjeJLnrYEVLULFNiHY9YfQ=
--- a/libpod/container.go
+++ b/libpod/container.go
@ -138,6 +138,10 @@ type Container struct {
 	// being checkpointed. If requestedIP is set it will be used instead
 	// of config.StaticIP.
 	requestedIP net.IP
+	// A restored container should have the same MAC address as before
+	// being checkpointed. If requestedMAC is set it will be used instead
+	// of config.StaticMAC.
+	requestedMAC net.HardwareAddr

 	// This is true if a container is restored from a checkpoint.
 	restoreFromCheckpoint bool
@ -296,6 +300,10 @@ type ContainerConfig struct {
 	// This cannot be set unless CreateNetNS is set.
 	// If not set, the container will be dynamically assigned an IP by CNI.
 	StaticIP net.IP `json:"staticIP"`
+	// StaticMAC is a static MAC to request for the container.
+	// This cannot be set unless CreateNetNS is set.
+	// If not set, the container will be dynamically assigned a MAC by CNI.
+	StaticMAC net.HardwareAddr `json:"staticMAC"`
 	// PortMappings are the ports forwarded to the container's network
 	// namespace
 	// These are not used unless CreateNetNS is true
--- a/libpod/container_api.go
+++ b/libpod/container_api.go
@ -794,6 +794,11 @@ type ContainerCheckpointOptions struct {
 	// important to be able to restore a container multiple
 	// times with '--import --name'.
 	IgnoreStaticIP bool
+	// IgnoreStaticMAC tells the API to ignore the MAC set
+	// during 'podman run' with '--mac-address'. This is especially
+	// important to be able to restore a container multiple
+	// times with '--import --name'.
+	IgnoreStaticMAC bool
 }

 // Checkpoint checkpoints a container
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@ -794,6 +794,15 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 		c.config.StaticIP = nil
 	}

+	// If a container is restored multiple times from an exported checkpoint with
+	// the help of '--import --name', the restore will fail if during 'podman run'
+	// a static container MAC address was set with '--mac-address'. The user
+	// can tell the restore process to ignore the static MAC with
+	// '--ignore-static-mac'
+	if options.IgnoreStaticMAC {
+		c.config.StaticMAC = nil
+	}
+
 	// Read network configuration from checkpoint
 	// Currently only one interface with one IP is supported.
 	networkStatusFile, err := os.Open(filepath.Join(c.bundlePath(), "network.status"))
@ -803,9 +812,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 	// TODO: This implicit restoring with or without IP depending on an
 	//       unrelated restore parameter (--name) does not seem like the
 	//       best solution.
-	if err == nil && options.Name == "" && !options.IgnoreStaticIP {
+	if err == nil && options.Name == "" && (!options.IgnoreStaticIP || !options.IgnoreStaticMAC) {
 		// The file with the network.status does exist. Let's restore the
-		// container with the same IP address as during checkpointing.
+		// container with the same IP address / MAC address as during checkpointing.
 		defer networkStatusFile.Close()
 		var networkStatus []*cnitypes.Result
 		networkJSON, err := ioutil.ReadAll(networkStatusFile)
@ -815,16 +824,35 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 		if err := json.Unmarshal(networkJSON, &networkStatus); err != nil {
 			return err
 		}
-		// Take the first IP address
-		var IP net.IP
-		if len(networkStatus) > 0 {
-			if len(networkStatus[0].IPs) > 0 {
-				IP = networkStatus[0].IPs[0].Address.IP
+		if !options.IgnoreStaticIP {
+			// Take the first IP address
+			var IP net.IP
+			if len(networkStatus) > 0 {
+				if len(networkStatus[0].IPs) > 0 {
+					IP = networkStatus[0].IPs[0].Address.IP
+				}
+			}
+			if IP != nil {
+				// Tell CNI which IP address we want.
+				c.requestedIP = IP
 			}
 		}
-		if IP != nil {
-			// Tell CNI which IP address we want.
-			c.requestedIP = IP
+		if !options.IgnoreStaticMAC {
+			// Take the first device with a defined sandbox.
+			var MAC net.HardwareAddr
+			for _, n := range networkStatus[0].Interfaces {
+				if n.Sandbox != "" {
+					MAC, err = net.ParseMAC(n.Mac)
+					if err != nil {
+						return errors.Wrapf(err, "failed to parse MAC %v", n.Mac)
+					}
+					break
+				}
+			}
+			if MAC != nil {
+				// Tell CNI which MAC address we want.
+				c.requestedMAC = MAC
+			}
 		}
 	}

@ -1314,7 +1342,7 @@ func (c *Container) copyOwnerAndPerms(source, dest string) error {
 // Teardown CNI config on refresh
 func (c *Container) refreshCNI() error {
 	// Let's try and delete any lingering network config...
-	podNetwork := c.runtime.getPodNetwork(c.ID(), c.config.Name, "", c.config.Networks, c.config.PortMappings, c.config.StaticIP)
+	podNetwork := c.runtime.getPodNetwork(c.ID(), c.config.Name, "", c.config.Networks, c.config.PortMappings, c.config.StaticIP, c.config.StaticMAC)
 	return c.runtime.netPlugin.TearDownPod(podNetwork)
 }

--- a/libpod/networking_linux.go
+++ b/libpod/networking_linux.go
@ -28,23 +28,34 @@ import (
 )

 // Get an OCICNI network config
-func (r *Runtime) getPodNetwork(id, name, nsPath string, networks []string, ports []ocicni.PortMapping, staticIP net.IP) ocicni.PodNetwork {
+func (r *Runtime) getPodNetwork(id, name, nsPath string, networks []string, ports []ocicni.PortMapping, staticIP net.IP, staticMAC net.HardwareAddr) ocicni.PodNetwork {
 	defaultNetwork := r.netPlugin.GetDefaultNetworkName()
 	network := ocicni.PodNetwork{
 		Name:      name,
 		Namespace: name, // TODO is there something else we should put here? We don't know about Kube namespaces
 		ID:        id,
 		NetNS:     nsPath,
-		Networks:  networks,
 		RuntimeConfig: map[string]ocicni.RuntimeConfig{
 			defaultNetwork: {PortMappings: ports},
 		},
 	}

-	if staticIP != nil {
-		network.Networks = []string{defaultNetwork}
+	if staticIP != nil || staticMAC != nil {
+		network.Networks = []ocicni.NetAttachment{{Name: defaultNetwork}}
+		var rt ocicni.RuntimeConfig = ocicni.RuntimeConfig{PortMappings: ports}
+		if staticIP != nil {
+			rt.IP = staticIP.String()
+		}
+		if staticMAC != nil {
+			rt.MAC = staticMAC.String()
+		}
 		network.RuntimeConfig = map[string]ocicni.RuntimeConfig{
-			defaultNetwork: {IP: staticIP.String(), PortMappings: ports},
+			defaultNetwork: rt,
+		}
+	} else {
+		network.Networks = make([]ocicni.NetAttachment, len(networks))
+		for i, netName := range networks {
+			network.Networks[i].Name = netName
 		}
 	}

@ -62,7 +73,16 @@ func (r *Runtime) configureNetNS(ctr *Container, ctrNS ns.NetNS) ([]*cnitypes.Re
 		requestedIP = ctr.config.StaticIP
 	}

-	podNetwork := r.getPodNetwork(ctr.ID(), ctr.Name(), ctrNS.Path(), ctr.config.Networks, ctr.config.PortMappings, requestedIP)
+	var requestedMAC net.HardwareAddr
+	if ctr.requestedMAC != nil {
+		requestedMAC = ctr.requestedMAC
+		// cancel request for a specific MAC in case the container is reused later
+		ctr.requestedMAC = nil
+	} else {
+		requestedMAC = ctr.config.StaticMAC
+	}
+
+	podNetwork := r.getPodNetwork(ctr.ID(), ctr.Name(), ctrNS.Path(), ctr.config.Networks, ctr.config.PortMappings, requestedIP, requestedMAC)

 	results, err := r.netPlugin.SetUpPod(podNetwork)
 	if err != nil {
@ -78,10 +98,10 @@ func (r *Runtime) configureNetNS(ctr *Container, ctrNS ns.NetNS) ([]*cnitypes.Re

 	networkStatus := make([]*cnitypes.Result, 0)
 	for idx, r := range results {
-		logrus.Debugf("[%d] CNI result: %v", idx, r.String())
-		resultCurrent, err := cnitypes.GetResult(r)
+		logrus.Debugf("[%d] CNI result: %v", idx, r.Result.String())
+		resultCurrent, err := cnitypes.GetResult(r.Result)
 		if err != nil {
-			return nil, errors.Wrapf(err, "error parsing CNI plugin result %q: %v", r.String(), err)
+			return nil, errors.Wrapf(err, "error parsing CNI plugin result %q: %v", r.Result.String(), err)
 		}
 		networkStatus = append(networkStatus, resultCurrent)
 	}
@ -443,7 +463,16 @@ func (r *Runtime) teardownNetNS(ctr *Container) error {
 			requestedIP = ctr.config.StaticIP
 		}

-		podNetwork := r.getPodNetwork(ctr.ID(), ctr.Name(), ctr.state.NetNS.Path(), ctr.config.Networks, ctr.config.PortMappings, requestedIP)
+		var requestedMAC net.HardwareAddr
+		if ctr.requestedMAC != nil {
+			requestedMAC = ctr.requestedMAC
+			// cancel request for a specific MAC in case the container is reused later
+			ctr.requestedMAC = nil
+		} else {
+			requestedMAC = ctr.config.StaticMAC
+		}
+
+		podNetwork := r.getPodNetwork(ctr.ID(), ctr.Name(), ctr.state.NetNS.Path(), ctr.config.Networks, ctr.config.PortMappings, requestedIP, requestedMAC)

 		if err := r.netPlugin.TearDownPod(podNetwork); err != nil {
 			return errors.Wrapf(err, "error tearing down CNI namespace configuration for container %s", ctr.ID())
--- a/libpod/options.go
+++ b/libpod/options.go
@ -1052,6 +1052,31 @@ func WithStaticIP(ip net.IP) CtrCreateOption {
 	}
 }

+// WithStaticMAC indicates that the container should request a static MAC from
+// the CNI plugins.
+// It cannot be set unless WithNetNS has already been passed.
+// Further, it cannot be set if additional CNI networks to join have been
+// specified.
+func WithStaticMAC(mac net.HardwareAddr) CtrCreateOption {
+	return func(ctr *Container) error {
+		if ctr.valid {
+			return define.ErrCtrFinalized
+		}
+
+		if !ctr.config.CreateNetNS {
+			return errors.Wrapf(define.ErrInvalidArg, "cannot set a static MAC if the container is not creating a network namespace")
+		}
+
+		if len(ctr.config.Networks) != 0 {
+			return errors.Wrapf(define.ErrInvalidArg, "cannot set a static MAC if joining additional CNI networks")
+		}
+
+		ctr.config.StaticMAC = mac
+
+		return nil
+	}
+}
+
 // WithLogDriver sets the log driver for the container
 func WithLogDriver(driver string) CtrCreateOption {
 	return func(ctr *Container) error {
--- a/pkg/adapter/containers.go
+++ b/pkg/adapter/containers.go
@ -538,12 +538,13 @@ func (r *LocalRuntime) Restore(ctx context.Context, c *cliconfig.RestoreValues)
 	)

 	options := libpod.ContainerCheckpointOptions{
-		Keep:           c.Keep,
-		TCPEstablished: c.TcpEstablished,
-		TargetFile:     c.Import,
-		Name:           c.Name,
-		IgnoreRootfs:   c.IgnoreRootfs,
-		IgnoreStaticIP: c.IgnoreStaticIP,
+		Keep:            c.Keep,
+		TCPEstablished:  c.TcpEstablished,
+		TargetFile:      c.Import,
+		Name:            c.Name,
+		IgnoreRootfs:    c.IgnoreRootfs,
+		IgnoreStaticIP:  c.IgnoreStaticIP,
+		IgnoreStaticMAC: c.IgnoreStaticMAC,
 	}

 	filterFuncs = append(filterFuncs, func(c *libpod.Container) bool {
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@ -396,6 +396,14 @@ func (c *CreateConfig) getContainerCreateOptions(runtime *libpod.Runtime, pod *l
 		options = append(options, libpod.WithStaticIP(ip))
 	}

+	if c.MacAddress != "" {
+		mac, err := net.ParseMAC(c.MacAddress)
+		if err != nil {
+			return nil, errors.Wrapf(define.ErrInvalidArg, "cannot parse %s as MAC address: %v", c.MacAddress, err)
+		}
+		options = append(options, libpod.WithStaticMAC(mac))
+	}
+
 	options = append(options, libpod.WithPrivileged(c.Privileged))

 	useImageVolumes := c.ImageVolumeType == TypeBind
--- a/test/e2e/checkpoint_test.go
+++ b/test/e2e/checkpoint_test.go
@ -334,6 +334,10 @@ var _ = Describe("Podman checkpoint", func() {
 		IPBefore.WaitWithDefaultTimeout()
 		Expect(IPBefore.ExitCode()).To(Equal(0))

+		MACBefore := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.MacAddress}}"})
+		MACBefore.WaitWithDefaultTimeout()
+		Expect(MACBefore.ExitCode()).To(Equal(0))
+
 		result := podmanTest.Podman([]string{"container", "checkpoint", "test_name"})
 		result.WaitWithDefaultTimeout()

@ -348,9 +352,16 @@ var _ = Describe("Podman checkpoint", func() {
 		IPAfter.WaitWithDefaultTimeout()
 		Expect(IPAfter.ExitCode()).To(Equal(0))

+		MACAfter := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.MacAddress}}"})
+		MACAfter.WaitWithDefaultTimeout()
+		Expect(MACAfter.ExitCode()).To(Equal(0))
+
 		// Check that IP address did not change between checkpointing and restoring
 		Expect(IPBefore.OutputToString()).To(Equal(IPAfter.OutputToString()))

+		// Check that MAC address did not change between checkpointing and restoring
+		Expect(MACBefore.OutputToString()).To(Equal(MACAfter.OutputToString()))
+
 		Expect(result.ExitCode()).To(Equal(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
--- a/test/e2e/create_staticmac_test.go
+++ b/test/e2e/create_staticmac_test.go
@ -0,0 +1,46 @@
+// +build !remoteclient
+
+package integration
+
+import (
+	"os"
+
+	. "github.com/containers/libpod/test/utils"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Podman run with --mac-address flag", func() {
+	var (
+		tempdir    string
+		err        error
+		podmanTest *PodmanTestIntegration
+	)
+
+	BeforeEach(func() {
+		SkipIfRootless()
+		tempdir, err = CreateTempDirInTempDir()
+		if err != nil {
+			os.Exit(1)
+		}
+		podmanTest = PodmanTestCreate(tempdir)
+		podmanTest.Setup()
+		podmanTest.SeedImages()
+		// Cleanup the CNI networks used by the tests
+		os.RemoveAll("/var/lib/cni/networks/podman")
+	})
+
+	AfterEach(func() {
+		podmanTest.Cleanup()
+		f := CurrentGinkgoTestDescription()
+		processTestResult(f)
+
+	})
+
+	It("Podman run --mac-address", func() {
+		result := podmanTest.Podman([]string{"run", "--mac-address", "92:d0:c6:0a:29:34", ALPINE, "ip", "addr"})
+		result.WaitWithDefaultTimeout()
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(result.OutputToString()).To(ContainSubstring("92:d0:c6:0a:29:34"))
+	})
+})
--- a/vendor/github.com/containernetworking/cni/libcni/api.go
+++ b/vendor/github.com/containernetworking/cni/libcni/api.go
@ -25,6 +25,7 @@ import (

 	"github.com/containernetworking/cni/pkg/invoke"
 	"github.com/containernetworking/cni/pkg/types"
+	"github.com/containernetworking/cni/pkg/utils"
 	"github.com/containernetworking/cni/pkg/version"
 )

@ -32,6 +33,10 @@ var (
 	CacheDir = "/var/lib/cni"
 )

+const (
+	CNICacheV1 = "cniCacheV1"
+)
+
 // A RuntimeConf holds the arguments to one invocation of a CNI plugin
 // excepting the network configuration, with the nested exception that
 // the `runtimeConfig` from the network configuration is included
@ -48,7 +53,7 @@ type RuntimeConf struct {
 	// to the plugin
 	CapabilityArgs map[string]interface{}

-	// A cache directory in which to library data.  Defaults to CacheDir
+	// DEPRECATED. Will be removed in a future release.
 	CacheDir string
 }

@ -70,19 +75,22 @@ type CNI interface {
 	CheckNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error
 	DelNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error
 	GetNetworkListCachedResult(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error)
+	GetNetworkListCachedConfig(net *NetworkConfigList, rt *RuntimeConf) ([]byte, *RuntimeConf, error)

 	AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
 	CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error
 	DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error
 	GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
+	GetNetworkCachedConfig(net *NetworkConfig, rt *RuntimeConf) ([]byte, *RuntimeConf, error)

 	ValidateNetworkList(ctx context.Context, net *NetworkConfigList) ([]string, error)
 	ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error)
 }

 type CNIConfig struct {
-	Path []string
-	exec invoke.Exec
+	Path     []string
+	exec     invoke.Exec
+	cacheDir string
 }

 // CNIConfig implements the CNI interface
@ -92,9 +100,18 @@ var _ CNI = &CNIConfig{}
 // in the given paths and use the given exec interface to run those plugins,
 // or if the exec interface is not given, will use a default exec handler.
 func NewCNIConfig(path []string, exec invoke.Exec) *CNIConfig {
+	return NewCNIConfigWithCacheDir(path, "", exec)
+}
+
+// NewCNIConfigWithCacheDir returns a new CNIConfig object that will search for plugins
+// in the given paths use the given exec interface to run those plugins,
+// or if the exec interface is not given, will use a default exec handler.
+// The given cache directory will be used for temporary data storage when needed.
+func NewCNIConfigWithCacheDir(path []string, cacheDir string, exec invoke.Exec) *CNIConfig {
 	return &CNIConfig{
-		Path: path,
-		exec: exec,
+		Path:     path,
+		cacheDir: cacheDir,
+		exec:     exec,
 	}
 }

@ -165,33 +182,122 @@ func (c *CNIConfig) ensureExec() invoke.Exec {
 	return c.exec
 }

-func getResultCacheFilePath(netName string, rt *RuntimeConf) string {
-	cacheDir := rt.CacheDir
-	if cacheDir == "" {
-		cacheDir = CacheDir
-	}
-	return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName))
+type cachedInfo struct {
+	Kind           string                 `json:"kind"`
+	ContainerID    string                 `json:"containerId"`
+	Config         []byte                 `json:"config"`
+	IfName         string                 `json:"ifName"`
+	NetworkName    string                 `json:"networkName"`
+	CniArgs        [][2]string            `json:"cniArgs,omitempty"`
+	CapabilityArgs map[string]interface{} `json:"capabilityArgs,omitempty"`
+	RawResult      map[string]interface{} `json:"result,omitempty"`
+	Result         types.Result           `json:"-"`
 }

-func setCachedResult(result types.Result, netName string, rt *RuntimeConf) error {
+// getCacheDir returns the cache directory in this order:
+// 1) global cacheDir from CNIConfig object
+// 2) deprecated cacheDir from RuntimeConf object
+// 3) fall back to default cache directory
+func (c *CNIConfig) getCacheDir(rt *RuntimeConf) string {
+	if c.cacheDir != "" {
+		return c.cacheDir
+	}
+	if rt.CacheDir != "" {
+		return rt.CacheDir
+	}
+	return CacheDir
+}
+
+func (c *CNIConfig) getCacheFilePath(netName string, rt *RuntimeConf) (string, error) {
+	if netName == "" || rt.ContainerID == "" || rt.IfName == "" {
+		return "", fmt.Errorf("cache file path requires network name (%q), container ID (%q), and interface name (%q)", netName, rt.ContainerID, rt.IfName)
+	}
+	return filepath.Join(c.getCacheDir(rt), "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName)), nil
+}
+
+func (c *CNIConfig) cacheAdd(result types.Result, config []byte, netName string, rt *RuntimeConf) error {
+	cached := cachedInfo{
+		Kind:           CNICacheV1,
+		ContainerID:    rt.ContainerID,
+		Config:         config,
+		IfName:         rt.IfName,
+		NetworkName:    netName,
+		CniArgs:        rt.Args,
+		CapabilityArgs: rt.CapabilityArgs,
+	}
+
+	// We need to get type.Result into cachedInfo as JSON map
+	// Marshal to []byte, then Unmarshal into cached.RawResult
 	data, err := json.Marshal(result)
 	if err != nil {
 		return err
 	}
-	fname := getResultCacheFilePath(netName, rt)
+
+	err = json.Unmarshal(data, &cached.RawResult)
+	if err != nil {
+		return err
+	}
+
+	newBytes, err := json.Marshal(&cached)
+	if err != nil {
+		return err
+	}
+
+	fname, err := c.getCacheFilePath(netName, rt)
+	if err != nil {
+		return err
+	}
 	if err := os.MkdirAll(filepath.Dir(fname), 0700); err != nil {
 		return err
 	}
-	return ioutil.WriteFile(fname, data, 0600)
+
+	return ioutil.WriteFile(fname, newBytes, 0600)
 }

-func delCachedResult(netName string, rt *RuntimeConf) error {
-	fname := getResultCacheFilePath(netName, rt)
+func (c *CNIConfig) cacheDel(netName string, rt *RuntimeConf) error {
+	fname, err := c.getCacheFilePath(netName, rt)
+	if err != nil {
+		// Ignore error
+		return nil
+	}
 	return os.Remove(fname)
 }

-func getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) {
-	fname := getResultCacheFilePath(netName, rt)
+func (c *CNIConfig) getCachedConfig(netName string, rt *RuntimeConf) ([]byte, *RuntimeConf, error) {
+	var bytes []byte
+
+	fname, err := c.getCacheFilePath(netName, rt)
+	if err != nil {
+		return nil, nil, err
+	}
+	bytes, err = ioutil.ReadFile(fname)
+	if err != nil {
+		// Ignore read errors; the cached result may not exist on-disk
+		return nil, nil, nil
+	}
+
+	unmarshaled := cachedInfo{}
+	if err := json.Unmarshal(bytes, &unmarshaled); err != nil {
+		return nil, nil, fmt.Errorf("failed to unmarshal cached network %q config: %v", netName, err)
+	}
+	if unmarshaled.Kind != CNICacheV1 {
+		return nil, nil, fmt.Errorf("read cached network %q config has wrong kind: %v", netName, unmarshaled.Kind)
+	}
+
+	newRt := *rt
+	if unmarshaled.CniArgs != nil {
+		newRt.Args = unmarshaled.CniArgs
+	}
+	newRt.CapabilityArgs = unmarshaled.CapabilityArgs
+
+	return unmarshaled.Config, &newRt, nil
+}
+
+func (c *CNIConfig) getLegacyCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) {
+	fname, err := c.getCacheFilePath(netName, rt)
+	if err != nil {
+		return nil, err
+	}
 	data, err := ioutil.ReadFile(fname)
 	if err != nil {
 		// Ignore read errors; the cached result may not exist on-disk
@ -222,16 +328,73 @@ func getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result,
 	return result, err
 }

+func (c *CNIConfig) getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) {
+	fname, err := c.getCacheFilePath(netName, rt)
+	if err != nil {
+		return nil, err
+	}
+	fdata, err := ioutil.ReadFile(fname)
+	if err != nil {
+		// Ignore read errors; the cached result may not exist on-disk
+		return nil, nil
+	}
+
+	cachedInfo := cachedInfo{}
+	if err := json.Unmarshal(fdata, &cachedInfo); err != nil || cachedInfo.Kind != CNICacheV1 {
+		return c.getLegacyCachedResult(netName, cniVersion, rt)
+	}
+
+	newBytes, err := json.Marshal(&cachedInfo.RawResult)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal cached network %q config: %v", netName, err)
+	}
+
+	// Read the version of the cached result
+	decoder := version.ConfigDecoder{}
+	resultCniVersion, err := decoder.Decode(newBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	// Ensure we can understand the result
+	result, err := version.NewResult(resultCniVersion, newBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	// Convert to the config version to ensure plugins get prevResult
+	// in the same version as the config.  The cached result version
+	// should match the config version unless the config was changed
+	// while the container was running.
+	result, err = result.GetAsVersion(cniVersion)
+	if err != nil && resultCniVersion != cniVersion {
+		return nil, fmt.Errorf("failed to convert cached result version %q to config version %q: %v", resultCniVersion, cniVersion, err)
+	}
+	return result, err
+}
+
 // GetNetworkListCachedResult returns the cached Result of the previous
-// previous AddNetworkList() operation for a network list, or an error.
+// AddNetworkList() operation for a network list, or an error.
 func (c *CNIConfig) GetNetworkListCachedResult(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
-	return getCachedResult(list.Name, list.CNIVersion, rt)
+	return c.getCachedResult(list.Name, list.CNIVersion, rt)
 }

 // GetNetworkCachedResult returns the cached Result of the previous
-// previous AddNetwork() operation for a network, or an error.
+// AddNetwork() operation for a network, or an error.
 func (c *CNIConfig) GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
-	return getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
+	return c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
+}
+
+// GetNetworkListCachedConfig copies the input RuntimeConf to output
+// RuntimeConf with fields updated with info from the cached Config.
+func (c *CNIConfig) GetNetworkListCachedConfig(list *NetworkConfigList, rt *RuntimeConf) ([]byte, *RuntimeConf, error) {
+	return c.getCachedConfig(list.Name, rt)
+}
+
+// GetNetworkCachedConfig copies the input RuntimeConf to output
+// RuntimeConf with fields updated with info from the cached Config.
+func (c *CNIConfig) GetNetworkCachedConfig(net *NetworkConfig, rt *RuntimeConf) ([]byte, *RuntimeConf, error) {
+	return c.getCachedConfig(net.Network.Name, rt)
 }

 func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) {
@ -240,6 +403,12 @@ func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net
 	if err != nil {
 		return nil, err
 	}
+	if err := utils.ValidateContainerID(rt.ContainerID); err != nil {
+		return nil, err
+	}
+	if err := utils.ValidateNetworkName(name); err != nil {
+		return nil, err
+	}

 	newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt)
 	if err != nil {
@ -260,7 +429,7 @@ func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList,
 		}
 	}

-	if err = setCachedResult(result, list.Name, rt); err != nil {
+	if err = c.cacheAdd(result, list.Bytes, list.Name, rt); err != nil {
 		return nil, fmt.Errorf("failed to set network %q cached result: %v", list.Name, err)
 	}

@ -295,7 +464,7 @@ func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigLis
 		return nil
 	}

-	cachedResult, err := getCachedResult(list.Name, list.CNIVersion, rt)
+	cachedResult, err := c.getCachedResult(list.Name, list.CNIVersion, rt)
 	if err != nil {
 		return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err)
 	}
@ -332,7 +501,7 @@ func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList,
 	if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil {
 		return err
 	} else if gtet {
-		cachedResult, err = getCachedResult(list.Name, list.CNIVersion, rt)
+		cachedResult, err = c.getCachedResult(list.Name, list.CNIVersion, rt)
 		if err != nil {
 			return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err)
 		}
@ -344,7 +513,7 @@ func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList,
 			return err
 		}
 	}
-	_ = delCachedResult(list.Name, rt)
+	_ = c.cacheDel(list.Name, rt)

 	return nil
 }
@ -356,7 +525,7 @@ func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *Runt
 		return nil, err
 	}

-	if err = setCachedResult(result, net.Network.Name, rt); err != nil {
+	if err = c.cacheAdd(result, net.Bytes, net.Network.Name, rt); err != nil {
 		return nil, fmt.Errorf("failed to set network %q cached result: %v", net.Network.Name, err)
 	}

@ -372,7 +541,7 @@ func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *Ru
 		return fmt.Errorf("configuration version %q does not support the CHECK command", net.Network.CNIVersion)
 	}

-	cachedResult, err := getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
+	cachedResult, err := c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
 	if err != nil {
 		return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err)
 	}
@ -387,7 +556,7 @@ func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *Runt
 	if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil {
 		return err
 	} else if gtet {
-		cachedResult, err = getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
+		cachedResult, err = c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
 		if err != nil {
 			return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err)
 		}
@ -396,7 +565,7 @@ func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *Runt
 	if err := c.delNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil {
 		return err
 	}
-	_ = delCachedResult(net.Network.Name, rt)
+	_ = c.cacheDel(net.Network.Name, rt)
 	return nil
 }

@ -455,7 +624,8 @@ func (c *CNIConfig) ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]

 // validatePlugin checks that an individual plugin's configuration is sane
 func (c *CNIConfig) validatePlugin(ctx context.Context, pluginName, expectedVersion string) error {
-	pluginPath, err := invoke.FindInPath(pluginName, c.Path)
+	c.ensureExec()
+	pluginPath, err := c.exec.FindInPath(pluginName, c.Path)
 	if err != nil {
 		return err
 	}
--- a/vendor/github.com/containernetworking/cni/libcni/conf.go
+++ b/vendor/github.com/containernetworking/cni/libcni/conf.go
@ -114,11 +114,11 @@ func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) {
 	for i, conf := range plugins {
 		newBytes, err := json.Marshal(conf)
 		if err != nil {
-			return nil, fmt.Errorf("Failed to marshal plugin config %d: %v", i, err)
+			return nil, fmt.Errorf("failed to marshal plugin config %d: %v", i, err)
 		}
 		netConf, err := ConfFromBytes(newBytes)
 		if err != nil {
-			return nil, fmt.Errorf("Failed to parse plugin config %d: %v", i, err)
+			return nil, fmt.Errorf("failed to parse plugin config %d: %v", i, err)
 		}
 		list.Plugins = append(list.Plugins, netConf)
 	}
--- a/vendor/github.com/containernetworking/cni/pkg/invoke/args.go
+++ b/vendor/github.com/containernetworking/cni/pkg/invoke/args.go
@ -32,7 +32,7 @@ type inherited struct{}

 var inheritArgsFromEnv inherited

-func (_ *inherited) AsEnv() []string {
+func (*inherited) AsEnv() []string {
 	return nil
 }

--- a/vendor/github.com/containernetworking/cni/pkg/types/args.go
+++ b/vendor/github.com/containernetworking/cni/pkg/types/args.go
@ -36,7 +36,7 @@ func (b *UnmarshallableBool) UnmarshalText(data []byte) error {
 	case "0", "false":
 		*b = false
 	default:
-		return fmt.Errorf("Boolean unmarshal error: invalid input %s", s)
+		return fmt.Errorf("boolean unmarshal error: invalid input %s", s)
 	}
 	return nil
 }
--- a/vendor/github.com/containernetworking/cni/pkg/types/types.go
+++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go
@ -16,7 +16,6 @@ package types

 import (
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"net"
@ -134,9 +133,16 @@ func (r *Route) String() string {
 // Well known error codes
 // see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes
 const (
-	ErrUnknown                uint = iota // 0
-	ErrIncompatibleCNIVersion             // 1
-	ErrUnsupportedField                   // 2
+	ErrUnknown                     uint = iota // 0
+	ErrIncompatibleCNIVersion                  // 1
+	ErrUnsupportedField                        // 2
+	ErrUnknownContainer                        // 3
+	ErrInvalidEnvironmentVariables             // 4
+	ErrIOFailure                               // 5
+	ErrDecodingFailure                         // 6
+	ErrInvalidNetworkConfig                    // 7
+	ErrTryAgainLater               uint = 11
+	ErrInternal                    uint = 999
 )

 type Error struct {
@ -145,6 +151,14 @@ type Error struct {
 	Details string `json:"details,omitempty"`
 }

+func NewError(code uint, msg, details string) *Error {
+	return &Error{
+		Code:    code,
+		Msg:     msg,
+		Details: details,
+	}
+}
+
 func (e *Error) Error() string {
 	details := ""
 	if e.Details != "" {
@ -194,6 +208,3 @@ func prettyPrint(obj interface{}) error {
 	_, err = os.Stdout.Write(data)
 	return err
 }
-
-// NotImplementedError is used to indicate that a method is not implemented for the given platform
-var NotImplementedError = errors.New("Not Implemented")
--- a/vendor/github.com/containernetworking/cni/pkg/utils/utils.go
+++ b/vendor/github.com/containernetworking/cni/pkg/utils/utils.go
@ -0,0 +1,51 @@
+// Copyright 2019 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 utils
+
+import (
+	"regexp"
+
+	"github.com/containernetworking/cni/pkg/types"
+)
+
+// cniValidNameChars is the regexp used to validate valid characters in
+// containerID and networkName
+const cniValidNameChars = `[a-zA-Z0-9][a-zA-Z0-9_.\-]`
+
+var cniReg = regexp.MustCompile(`^` + cniValidNameChars + `*$`)
+
+// ValidateContainerID will validate that the supplied containerID is not empty does not contain invalid characters
+func ValidateContainerID(containerID string) *types.Error {
+
+	if containerID == "" {
+		return types.NewError(types.ErrUnknownContainer, "missing containerID", "")
+	}
+	if !cniReg.MatchString(containerID) {
+		return types.NewError(types.ErrInvalidEnvironmentVariables, "invalid characters in containerID", containerID)
+	}
+	return nil
+}
+
+// ValidateNetworkName will validate that the supplied networkName does not contain invalid characters
+func ValidateNetworkName(networkName string) *types.Error {
+
+	if networkName == "" {
+		return types.NewError(types.ErrInvalidNetworkConfig, "missing network name:", "")
+	}
+	if !cniReg.MatchString(networkName) {
+		return types.NewError(types.ErrInvalidNetworkConfig, "invalid characters found in network name", networkName)
+	}
+	return nil
+}
--- a/vendor/github.com/cri-o/ocicni/pkg/ocicni/ocicni.go
+++ b/vendor/github.com/cri-o/ocicni/pkg/ocicni/ocicni.go
@ -2,11 +2,14 @@ package ocicni

 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
+	"io/ioutil"
 	"net"
 	"os"
 	"path"
+	"path/filepath"
 	"sort"
 	"strings"
 	"sync"
@ -21,10 +24,11 @@ import (
 )

 type cniNetworkPlugin struct {
+	cniConfig *libcni.CNIConfig
 	loNetwork *cniNetwork

 	sync.RWMutex
-	defaultNetName string
+	defaultNetName netName
 	networks       map[string]*cniNetwork

 	nsManager *nsManager
@ -47,11 +51,15 @@ type cniNetworkPlugin struct {
 	cacheDir string
 }

+type netName struct {
+	name       string
+	changeable bool
+}
+
 type cniNetwork struct {
-	name          string
-	filePath      string
-	NetworkConfig *libcni.NetworkConfigList
-	CNIConfig     *libcni.CNIConfig
+	name     string
+	filePath string
+	config   *libcni.NetworkConfigList
 }

 var errMissingDefaultNetwork = errors.New("Missing CNI default network")
@ -186,6 +194,8 @@ func (plugin *cniNetworkPlugin) monitorConfDir(start *sync.WaitGroup) {
 // If defaultNetName is not empty, a CNI config with that network name will
 // be used as the default CNI network, and container network operations will
 // fail until that network config is present and valid.
+// If defaultNetName is empty, CNI config files should be reloaded real-time and
+// defaultNetName should be changeable and determined by file sorting.
 func InitCNI(defaultNetName string, confDir string, binDirs ...string) (CNIPlugin, error) {
 	return initCNI(nil, "", defaultNetName, confDir, binDirs...)
 }
@ -198,17 +208,24 @@ func initCNI(exec cniinvoke.Exec, cacheDir, defaultNetName string, confDir strin
 	if len(binDirs) == 0 {
 		binDirs = []string{DefaultBinDir}
 	}
+
 	plugin := &cniNetworkPlugin{
-		defaultNetName: defaultNetName,
-		networks:       make(map[string]*cniNetwork),
-		loNetwork:      getLoNetwork(exec, binDirs),
-		confDir:        confDir,
-		binDirs:        binDirs,
-		shutdownChan:   make(chan struct{}),
-		done:           &sync.WaitGroup{},
-		pods:           make(map[string]*podLock),
-		exec:           exec,
-		cacheDir:       cacheDir,
+		cniConfig: libcni.NewCNIConfig(binDirs, exec),
+		defaultNetName: netName{
+			name: defaultNetName,
+			// If defaultNetName is not assigned in initialization,
+			// it should be changeable
+			changeable: defaultNetName == "",
+		},
+		networks:     make(map[string]*cniNetwork),
+		loNetwork:    getLoNetwork(),
+		confDir:      confDir,
+		binDirs:      binDirs,
+		shutdownChan: make(chan struct{}),
+		done:         &sync.WaitGroup{},
+		pods:         make(map[string]*podLock),
+		exec:         exec,
+		cacheDir:     cacheDir,
 	}

 	if exec == nil {
@ -246,7 +263,7 @@ func (plugin *cniNetworkPlugin) Shutdown() error {
 	return nil
 }

-func loadNetworks(exec cniinvoke.Exec, confDir string, binDirs []string) (map[string]*cniNetwork, string, error) {
+func loadNetworks(confDir string, cni *libcni.CNIConfig) (map[string]*cniNetwork, string, error) {
 	files, err := libcni.ConfFiles(confDir, []string{".conf", ".conflist", ".json"})
 	if err != nil {
 		return nil, "", err
@ -284,17 +301,30 @@ func loadNetworks(exec cniinvoke.Exec, confDir string, binDirs []string) (map[st
 			logrus.Warningf("CNI config list %s has no networks, skipping", confFile)
 			continue
 		}
+
+		// Validation on CNI config should be done to pre-check presence
+		// of plugins which are necessary.
+		if _, err := cni.ValidateNetworkList(context.TODO(), confList); err != nil {
+			logrus.Warningf("Error validating CNI config file %s: %v", confFile, err)
+			continue
+		}
+
 		if confList.Name == "" {
 			confList.Name = path.Base(confFile)
 		}

+		cniNet := &cniNetwork{
+			name:     confList.Name,
+			filePath: confFile,
+			config:   confList,
+		}
+
 		logrus.Infof("Found CNI network %s (type=%v) at %s", confList.Name, confList.Plugins[0].Network.Type, confFile)

-		networks[confList.Name] = &cniNetwork{
-			name:          confList.Name,
-			filePath:      confFile,
-			NetworkConfig: confList,
-			CNIConfig:     libcni.NewCNIConfig(binDirs, exec),
+		if _, ok := networks[confList.Name]; !ok {
+			networks[confList.Name] = cniNet
+		} else {
+			logrus.Infof("Ignore CNI network %s (type=%v) at %s because already exists", confList.Name, confList.Plugins[0].Network.Type, confFile)
 		}

 		if defaultNetName == "" {
@ -305,39 +335,49 @@ func loadNetworks(exec cniinvoke.Exec, confDir string, binDirs []string) (map[st
 	return networks, defaultNetName, nil
 }

-func getLoNetwork(exec cniinvoke.Exec, binDirs []string) *cniNetwork {
-	loConfig, err := libcni.ConfListFromBytes([]byte(`{
-  "cniVersion": "0.2.0",
-  "name": "cni-loopback",
+const (
+	loIfname  string = "lo"
+	loNetname string = "cni-loopback"
+)
+
+func getLoNetwork() *cniNetwork {
+	loConfig, err := libcni.ConfListFromBytes([]byte(fmt.Sprintf(`{
+  "cniVersion": "0.3.1",
+  "name": "%s",
  "plugins": [{
    "type": "loopback"
  }]
-}`))
+}`, loNetname)))
 	if err != nil {
 		// The hardcoded config above should always be valid and unit tests will
 		// catch this
 		panic(err)
 	}
 	loNetwork := &cniNetwork{
-		name:          "lo",
-		NetworkConfig: loConfig,
-		CNIConfig:     libcni.NewCNIConfig(binDirs, exec),
+		name:   loIfname,
+		config: loConfig,
 	}

 	return loNetwork
 }

 func (plugin *cniNetworkPlugin) syncNetworkConfig() error {
-	networks, defaultNetName, err := loadNetworks(plugin.exec, plugin.confDir, plugin.binDirs)
+	networks, defaultNetName, err := loadNetworks(plugin.confDir, plugin.cniConfig)
 	if err != nil {
 		return err
 	}

 	plugin.Lock()
 	defer plugin.Unlock()
-	if plugin.defaultNetName == "" {
-		plugin.defaultNetName = defaultNetName
+
+	// Update defaultNetName if it is changeable
+	if plugin.defaultNetName.changeable {
+		plugin.defaultNetName.name = defaultNetName
+		logrus.Infof("Update default CNI network name to %s", defaultNetName)
+	} else {
+		logrus.Warnf("Default CNI network name %s is unchangeable", plugin.defaultNetName.name)
 	}
+
 	plugin.networks = networks

 	return nil
@ -356,7 +396,7 @@ func (plugin *cniNetworkPlugin) getNetwork(name string) (*cniNetwork, error) {
 func (plugin *cniNetworkPlugin) GetDefaultNetworkName() string {
 	plugin.RLock()
 	defer plugin.RUnlock()
-	return plugin.defaultNetName
+	return plugin.defaultNetName.name
 }

 func (plugin *cniNetworkPlugin) getDefaultNetwork() *cniNetwork {
@ -382,27 +422,120 @@ func (plugin *cniNetworkPlugin) Name() string {
 	return CNIPluginName
 }

-func (plugin *cniNetworkPlugin) forEachNetwork(podNetwork *PodNetwork, forEachFunc func(*cniNetwork, string, *PodNetwork, RuntimeConfig) error) error {
+func (plugin *cniNetworkPlugin) loadNetworkFromCache(name string, rt *libcni.RuntimeConf) (*cniNetwork, *libcni.RuntimeConf, error) {
+	cniNet := &cniNetwork{
+		name: name,
+		config: &libcni.NetworkConfigList{
+			Name: name,
+		},
+	}
+
+	var confBytes []byte
+	var err error
+	confBytes, rt, err = plugin.cniConfig.GetNetworkListCachedConfig(cniNet.config, rt)
+	if err != nil {
+		return nil, nil, err
+	} else if confBytes == nil {
+		return nil, nil, fmt.Errorf("network %q not found in CNI cache", name)
+	}
+
+	cniNet.config, err = libcni.ConfListFromBytes(confBytes)
+	if err != nil {
+		// Might be a plain NetworkConfig
+		netConf, err := libcni.ConfFromBytes(confBytes)
+		if err != nil {
+			return nil, nil, err
+		}
+		// Up-convert to a NetworkConfigList
+		cniNet.config, err = libcni.ConfListFromConf(netConf)
+		if err != nil {
+			return nil, nil, err
+		}
+	}
+
+	return cniNet, rt, nil
+}
+
+type forEachNetworkFn func(*cniNetwork, *PodNetwork, *libcni.RuntimeConf) error
+
+func (plugin *cniNetworkPlugin) forEachNetwork(podNetwork *PodNetwork, fromCache bool, actionFn forEachNetworkFn) error {
 	networks := podNetwork.Networks
 	if len(networks) == 0 {
-		networks = append(networks, plugin.GetDefaultNetworkName())
+		networks = append(networks, NetAttachment{
+			Name: plugin.GetDefaultNetworkName(),
+		})
 	}
-	for i, netName := range networks {
-		// Interface names start at "eth0" and count up for each network
-		ifName := fmt.Sprintf("eth%d", i)
-		network, err := plugin.getNetwork(netName)
+
+	allIfNames := make(map[string]bool)
+	for _, req := range networks {
+		if req.Ifname != "" {
+			// Make sure the requested name isn't already assigned
+			if allIfNames[req.Ifname] {
+				return fmt.Errorf("network %q requested interface name %q already assigned", req.Name, req.Ifname)
+			}
+			allIfNames[req.Ifname] = true
+		}
+	}
+
+	for _, network := range networks {
+		ifName := network.Ifname
+		if ifName == "" {
+			for i := 0; i < 10000; i++ {
+				candidate := fmt.Sprintf("eth%d", i)
+				if !allIfNames[candidate] {
+					allIfNames[candidate] = true
+					ifName = candidate
+					break
+				}
+			}
+			if ifName == "" {
+				return fmt.Errorf("failed to find free interface name for network %q", network.Name)
+			}
+		}
+
+		rt, err := buildCNIRuntimeConf(plugin.cacheDir, podNetwork, ifName, podNetwork.RuntimeConfig[network.Name])
 		if err != nil {
-			logrus.Errorf(err.Error())
+			logrus.Errorf("error building CNI runtime config: %v", err)
 			return err
 		}
-		if err := forEachFunc(network, ifName, podNetwork, podNetwork.RuntimeConfig[netName]); err != nil {
+
+		var cniNet *cniNetwork
+		if fromCache {
+			var newRt *libcni.RuntimeConf
+			cniNet, newRt, err = plugin.loadNetworkFromCache(network.Name, rt)
+			if err != nil {
+				logrus.Errorf("error loading cached network config: %v", err)
+				// fall back to loading from existing plugins on disk
+			} else {
+				// Use the updated RuntimeConf
+				rt = newRt
+			}
+		}
+		if cniNet == nil {
+			cniNet, err = plugin.getNetwork(network.Name)
+			if err != nil {
+				logrus.Errorf(err.Error())
+				return err
+			}
+		}
+
+		if err := actionFn(cniNet, podNetwork, rt); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (plugin *cniNetworkPlugin) SetUpPod(podNetwork PodNetwork) ([]cnitypes.Result, error) {
+func buildLoopbackRuntimeConf(cacheDir string, podNetwork *PodNetwork) *libcni.RuntimeConf {
+	return &libcni.RuntimeConf{
+		ContainerID: podNetwork.ID,
+		NetNS:       podNetwork.NetNS,
+		CacheDir:    cacheDir,
+		IfName:      loIfname,
+	}
+}
+
+func (plugin *cniNetworkPlugin) SetUpPod(podNetwork PodNetwork) ([]NetResult, error) {
 	if err := plugin.networksAvailable(&podNetwork); err != nil {
 		return nil, err
 	}
@ -410,20 +543,26 @@ func (plugin *cniNetworkPlugin) SetUpPod(podNetwork PodNetwork) ([]cnitypes.Resu
 	plugin.podLock(podNetwork).Lock()
 	defer plugin.podUnlock(podNetwork)

-	_, err := plugin.loNetwork.addToNetwork(plugin.cacheDir, &podNetwork, "lo", RuntimeConfig{})
-	if err != nil {
+	loRt := buildLoopbackRuntimeConf(plugin.cacheDir, &podNetwork)
+	if _, err := plugin.loNetwork.addToNetwork(loRt, plugin.cniConfig); err != nil {
 		logrus.Errorf("Error while adding to cni lo network: %s", err)
 		return nil, err
 	}

-	results := make([]cnitypes.Result, 0)
-	if err := plugin.forEachNetwork(&podNetwork, func(network *cniNetwork, ifName string, podNetwork *PodNetwork, runtimeConfig RuntimeConfig) error {
-		result, err := network.addToNetwork(plugin.cacheDir, podNetwork, ifName, runtimeConfig)
+	results := make([]NetResult, 0)
+	if err := plugin.forEachNetwork(&podNetwork, false, func(network *cniNetwork, podNetwork *PodNetwork, rt *libcni.RuntimeConf) error {
+		result, err := network.addToNetwork(rt, plugin.cniConfig)
 		if err != nil {
 			logrus.Errorf("Error while adding pod to CNI network %q: %s", network.name, err)
 			return err
 		}
-		results = append(results, result)
+		results = append(results, NetResult{
+			Result: result,
+			NetAttachment: NetAttachment{
+				Name:   network.name,
+				Ifname: rt.IfName,
+			},
+		})
 		return nil
 	}); err != nil {
 		return nil, err
@ -432,16 +571,99 @@ func (plugin *cniNetworkPlugin) SetUpPod(podNetwork PodNetwork) ([]cnitypes.Resu
 	return results, nil
 }

+func (plugin *cniNetworkPlugin) getCachedNetworkInfo(containerID string) ([]NetAttachment, error) {
+	cacheDir := libcni.CacheDir
+	if plugin.cacheDir != "" {
+		cacheDir = plugin.cacheDir
+	}
+
+	dirPath := filepath.Join(cacheDir, "results")
+	entries, err := ioutil.ReadDir(dirPath)
+	if err != nil {
+		return nil, err
+	}
+
+	fileNames := make([]string, 0, len(entries))
+	for _, e := range entries {
+		fileNames = append(fileNames, e.Name())
+	}
+	sort.Strings(fileNames)
+
+	attachments := []NetAttachment{}
+	for _, fname := range fileNames {
+		part := fmt.Sprintf("-%s-", containerID)
+		pos := strings.Index(fname, part)
+		if pos <= 0 || pos+len(part) >= len(fname) {
+			continue
+		}
+
+		cacheFile := filepath.Join(dirPath, fname)
+		bytes, err := ioutil.ReadFile(cacheFile)
+		if err != nil {
+			logrus.Warningf("failed to read CNI cache file %s: %v", cacheFile, err)
+			continue
+		}
+
+		cachedInfo := struct {
+			Kind        string `json:"kind"`
+			IfName      string `json:"ifName"`
+			ContainerID string `json:"containerID"`
+			NetName     string `json:"networkName"`
+		}{}
+
+		if err := json.Unmarshal(bytes, &cachedInfo); err != nil {
+			logrus.Warningf("failed to unmarshal CNI cache file %s: %v", cacheFile, err)
+			continue
+		}
+		if cachedInfo.Kind != libcni.CNICacheV1 {
+			logrus.Warningf("unknown CNI cache file %s kind %q", cacheFile, cachedInfo.Kind)
+			continue
+		}
+		if cachedInfo.ContainerID != containerID {
+			continue
+		}
+		// Ignore the loopback interface; it's handled separately
+		if cachedInfo.IfName == loIfname && cachedInfo.NetName == loNetname {
+			continue
+		}
+		if cachedInfo.IfName == "" || cachedInfo.NetName == "" {
+			logrus.Warningf("missing CNI cache file %s ifname %q or netname %q", cacheFile, cachedInfo.IfName, cachedInfo.NetName)
+			continue
+		}
+
+		attachments = append(attachments, NetAttachment{
+			Name:   cachedInfo.NetName,
+			Ifname: cachedInfo.IfName,
+		})
+	}
+	return attachments, nil
+}
+
+// TearDownPod tears down pod networks. Prefers cached pod attachment information
+// but falls back to given network attachment information.
 func (plugin *cniNetworkPlugin) TearDownPod(podNetwork PodNetwork) error {
+	if len(podNetwork.Networks) == 0 {
+		attachments, err := plugin.getCachedNetworkInfo(podNetwork.ID)
+		if err == nil && len(attachments) > 0 {
+			podNetwork.Networks = attachments
+		}
+	}
+
 	if err := plugin.networksAvailable(&podNetwork); err != nil {
 		return err
 	}

+	loRt := buildLoopbackRuntimeConf(plugin.cacheDir, &podNetwork)
+	if err := plugin.loNetwork.deleteFromNetwork(loRt, plugin.cniConfig); err != nil {
+		logrus.Errorf("Error while removing pod from CNI lo network: %v", err)
+		// Loopback teardown errors are not fatal
+	}
+
 	plugin.podLock(podNetwork).Lock()
 	defer plugin.podUnlock(podNetwork)

-	return plugin.forEachNetwork(&podNetwork, func(network *cniNetwork, ifName string, podNetwork *PodNetwork, runtimeConfig RuntimeConfig) error {
-		if err := network.deleteFromNetwork(plugin.cacheDir, podNetwork, ifName, runtimeConfig); err != nil {
+	return plugin.forEachNetwork(&podNetwork, true, func(network *cniNetwork, podNetwork *PodNetwork, rt *libcni.RuntimeConf) error {
+		if err := network.deleteFromNetwork(rt, plugin.cniConfig); err != nil {
 			logrus.Errorf("Error while removing pod from CNI network %q: %s", network.name, err)
 			return err
 		}
@ -451,19 +673,25 @@ func (plugin *cniNetworkPlugin) TearDownPod(podNetwork PodNetwork) error {

 // GetPodNetworkStatus returns IP addressing and interface details for all
 // networks attached to the pod.
-func (plugin *cniNetworkPlugin) GetPodNetworkStatus(podNetwork PodNetwork) ([]cnitypes.Result, error) {
+func (plugin *cniNetworkPlugin) GetPodNetworkStatus(podNetwork PodNetwork) ([]NetResult, error) {
 	plugin.podLock(podNetwork).Lock()
 	defer plugin.podUnlock(podNetwork)

-	results := make([]cnitypes.Result, 0)
-	if err := plugin.forEachNetwork(&podNetwork, func(network *cniNetwork, ifName string, podNetwork *PodNetwork, runtimeConfig RuntimeConfig) error {
-		result, err := network.checkNetwork(plugin.cacheDir, podNetwork, ifName, runtimeConfig, plugin.nsManager)
+	results := make([]NetResult, 0)
+	if err := plugin.forEachNetwork(&podNetwork, true, func(network *cniNetwork, podNetwork *PodNetwork, rt *libcni.RuntimeConf) error {
+		result, err := network.checkNetwork(rt, plugin.cniConfig, plugin.nsManager, podNetwork.NetNS)
 		if err != nil {
 			logrus.Errorf("Error while checking pod to CNI network %q: %s", network.name, err)
 			return err
 		}
 		if result != nil {
-			results = append(results, result)
+			results = append(results, NetResult{
+				Result: result,
+				NetAttachment: NetAttachment{
+					Name:   network.name,
+					Ifname: rt.IfName,
+				},
+			})
 		}
 		return nil
 	}); err != nil {
@ -473,16 +701,9 @@ func (plugin *cniNetworkPlugin) GetPodNetworkStatus(podNetwork PodNetwork) ([]cn
 	return results, nil
 }

-func (network *cniNetwork) addToNetwork(cacheDir string, podNetwork *PodNetwork, ifName string, runtimeConfig RuntimeConfig) (cnitypes.Result, error) {
-	rt, err := buildCNIRuntimeConf(cacheDir, podNetwork, ifName, runtimeConfig)
-	if err != nil {
-		logrus.Errorf("Error adding network: %v", err)
-		return nil, err
-	}
-
-	netconf, cninet := network.NetworkConfig, network.CNIConfig
-	logrus.Infof("About to add CNI network %s (type=%v)", netconf.Name, netconf.Plugins[0].Network.Type)
-	res, err := cninet.AddNetworkList(context.Background(), netconf, rt)
+func (network *cniNetwork) addToNetwork(rt *libcni.RuntimeConf, cni *libcni.CNIConfig) (cnitypes.Result, error) {
+	logrus.Infof("About to add CNI network %s (type=%v)", network.name, network.config.Plugins[0].Network.Type)
+	res, err := cni.AddNetworkList(context.Background(), network.config, rt)
 	if err != nil {
 		logrus.Errorf("Error adding network: %v", err)
 		return nil, err
@ -491,18 +712,10 @@ func (network *cniNetwork) addToNetwork(cacheDir string, podNetwork *PodNetwork,
 	return res, nil
 }

-func (network *cniNetwork) checkNetwork(cacheDir string, podNetwork *PodNetwork, ifName string, runtimeConfig RuntimeConfig, nsManager *nsManager) (cnitypes.Result, error) {
+func (network *cniNetwork) checkNetwork(rt *libcni.RuntimeConf, cni *libcni.CNIConfig, nsManager *nsManager, netns string) (cnitypes.Result, error) {
+	logrus.Infof("About to check CNI network %s (type=%v)", network.name, network.config.Plugins[0].Network.Type)

-	rt, err := buildCNIRuntimeConf(cacheDir, podNetwork, ifName, runtimeConfig)
-	if err != nil {
-		logrus.Errorf("Error checking network: %v", err)
-		return nil, err
-	}
-
-	netconf, cninet := network.NetworkConfig, network.CNIConfig
-	logrus.Infof("About to check CNI network %s (type=%v)", netconf.Name, netconf.Plugins[0].Network.Type)
-
-	gtet, err := cniversion.GreaterThanOrEqualTo(netconf.CNIVersion, "0.4.0")
+	gtet, err := cniversion.GreaterThanOrEqualTo(network.config.CNIVersion, "0.4.0")
 	if err != nil {
 		return nil, err
 	}
@ -511,15 +724,15 @@ func (network *cniNetwork) checkNetwork(cacheDir string, podNetwork *PodNetwork,

 	// When CNIVersion supports Check, use it.  Otherwise fall back on what was done initially.
 	if gtet {
-		err = cninet.CheckNetworkList(context.Background(), netconf, rt)
-		logrus.Infof("Checking CNI network %s (config version=%v)", netconf.Name, netconf.CNIVersion)
+		err = cni.CheckNetworkList(context.Background(), network.config, rt)
+		logrus.Infof("Checking CNI network %s (config version=%v)", network.name, network.config.CNIVersion)
 		if err != nil {
 			logrus.Errorf("Error checking network: %v", err)
 			return nil, err
 		}
 	}

-	result, err = cninet.GetNetworkListCachedResult(netconf, rt)
+	result, err = cni.GetNetworkListCachedResult(network.config, rt)
 	if err != nil {
 		logrus.Errorf("Error GetNetworkListCachedResult: %v", err)
 		return nil, err
@ -528,19 +741,19 @@ func (network *cniNetwork) checkNetwork(cacheDir string, podNetwork *PodNetwork,
 	}

 	// result doesn't exist, create one
-	logrus.Infof("Checking CNI network %s (config version=%v) nsManager=%v", netconf.Name, netconf.CNIVersion, nsManager)
+	logrus.Infof("Checking CNI network %s (config version=%v) nsManager=%v", network.name, network.config.CNIVersion, nsManager)

 	var cniInterface *cnicurrent.Interface
 	ips := []*cnicurrent.IPConfig{}
 	errs := []error{}
 	for _, version := range []string{"4", "6"} {
-		ip, mac, err := getContainerDetails(nsManager, podNetwork.NetNS, ifName, "-"+version)
+		ip, mac, err := getContainerDetails(nsManager, netns, rt.IfName, "-"+version)
 		if err == nil {
 			if cniInterface == nil {
 				cniInterface = &cnicurrent.Interface{
-					Name:    ifName,
+					Name:    rt.IfName,
 					Mac:     mac.String(),
-					Sandbox: podNetwork.NetNS,
+					Sandbox: netns,
 				}
 			}
 			ips = append(ips, &cnicurrent.IPConfig{
@ -557,25 +770,23 @@ func (network *cniNetwork) checkNetwork(cacheDir string, podNetwork *PodNetwork,
 	}

 	result = &cnicurrent.Result{
-		CNIVersion: netconf.CNIVersion,
+		CNIVersion: network.config.CNIVersion,
 		Interfaces: []*cnicurrent.Interface{cniInterface},
 		IPs:        ips,
 	}

-	return result, nil
-}
-
-func (network *cniNetwork) deleteFromNetwork(cacheDir string, podNetwork *PodNetwork, ifName string, runtimeConfig RuntimeConfig) error {
-	rt, err := buildCNIRuntimeConf(cacheDir, podNetwork, ifName, runtimeConfig)
+	// Result must be the same CNIVersion as the CNI config
+	converted, err := result.GetAsVersion(network.config.CNIVersion)
 	if err != nil {
-		logrus.Errorf("Error deleting network: %v", err)
-		return err
+		return nil, err
 	}

-	netconf, cninet := network.NetworkConfig, network.CNIConfig
-	logrus.Infof("About to del CNI network %s (type=%v)", netconf.Name, netconf.Plugins[0].Network.Type)
-	err = cninet.DelNetworkList(context.Background(), netconf, rt)
-	if err != nil {
+	return converted, nil
+}
+
+func (network *cniNetwork) deleteFromNetwork(rt *libcni.RuntimeConf, cni *libcni.CNIConfig) error {
+	logrus.Infof("About to del CNI network %s (type=%v)", network.name, network.config.Plugins[0].Network.Type)
+	if err := cni.DelNetworkList(context.Background(), network.config, rt); err != nil {
 		logrus.Errorf("Error deleting network: %v", err)
 		return err
 	}
@ -608,6 +819,16 @@ func buildCNIRuntimeConf(cacheDir string, podNetwork *PodNetwork, ifName string,
 		rt.Args = append(rt.Args, [2]string{"IP", ip})
 	}

+	// Add the requested static MAC to CNI_ARGS
+	mac := runtimeConfig.MAC
+	if mac != "" {
+		_, err := net.ParseMAC(mac)
+		if err != nil {
+			return nil, fmt.Errorf("unable to parse MAC address %q: %v", mac, err)
+		}
+		rt.Args = append(rt.Args, [2]string{"MAC", mac})
+	}
+
 	// Set PortMappings in Capabilities
 	if len(runtimeConfig.PortMappings) != 0 {
 		rt.CapabilityArgs["portMappings"] = runtimeConfig.PortMappings
--- a/vendor/github.com/cri-o/ocicni/pkg/ocicni/types.go
+++ b/vendor/github.com/cri-o/ocicni/pkg/ocicni/types.go
@ -44,6 +44,9 @@ type RuntimeConfig struct {
 	// with the hostlocal IP allocator. If left unset, an IP will be
 	// dynamically allocated.
 	IP string
+	// MAC is a static MAC address to be assigned to the network interface.
+	// If left unset, a MAC will be dynamically allocated.
+	MAC string
 	// PortMappings is the port mapping of the sandbox.
 	PortMappings []PortMapping
 	// Bandwidth is the bandwidth limiting of the pod
@ -75,9 +78,10 @@ type PodNetwork struct {
 	// NetNS is the network namespace path of the sandbox.
 	NetNS string

-	// Networks is a list of CNI network names to attach to the sandbox
-	// Leave this list empty to attach the default network to the sandbox
-	Networks []string
+	// Networks is a list of CNI network names (and optional interface
+	// names) to attach to the sandbox. Leave this list empty to attach the
+	// default network to the sandbox
+	Networks []NetAttachment

 	// NetworkConfig is configuration specific to a single CNI network.
 	// It is optional, and can be omitted for some or all specified networks
@ -85,6 +89,24 @@ type PodNetwork struct {
 	RuntimeConfig map[string]RuntimeConfig
 }

+// NetAttachment describes a container network attachment
+type NetAttachment struct {
+	// NetName contains the name of the CNI network to which the container
+	// should be or is attached
+	Name string
+	// Ifname contains the optional interface name of the attachment
+	Ifname string
+}
+
+// NetResult contains the result the network attachment operation
+type NetResult struct {
+	// Result is the CNI Result
+	Result types.Result
+	// NetAttachment contains the network and interface names of this
+	// network attachment
+	NetAttachment
+}
+
 // CNIPlugin is the interface that needs to be implemented by a plugin
 type CNIPlugin interface {
 	// Name returns the plugin's name. This will be used when searching
@ -98,13 +120,13 @@ type CNIPlugin interface {
 	// SetUpPod is the method called after the sandbox container of
 	// the pod has been created but before the other containers of the
 	// pod are launched.
-	SetUpPod(network PodNetwork) ([]types.Result, error)
+	SetUpPod(network PodNetwork) ([]NetResult, error)

 	// TearDownPod is the method called before a pod's sandbox container will be deleted
 	TearDownPod(network PodNetwork) error

 	// Status is the method called to obtain the ipv4 or ipv6 addresses of the pod sandbox
-	GetPodNetworkStatus(network PodNetwork) ([]types.Result, error)
+	GetPodNetworkStatus(network PodNetwork) ([]NetResult, error)

 	// NetworkStatus returns error if the network plugin is in error state
 	Status() error
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@ -42,13 +42,14 @@ github.com/containerd/containerd/errdefs
 github.com/containerd/continuity/fs
 github.com/containerd/continuity/sysx
 github.com/containerd/continuity/syscallx
-# github.com/containernetworking/cni v0.7.1
+# github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784
 github.com/containernetworking/cni/pkg/types
 github.com/containernetworking/cni/pkg/types/current
 github.com/containernetworking/cni/pkg/version
 github.com/containernetworking/cni/libcni
 github.com/containernetworking/cni/pkg/invoke
 github.com/containernetworking/cni/pkg/types/020
+github.com/containernetworking/cni/pkg/utils
 # github.com/containernetworking/plugins v0.8.2
 github.com/containernetworking/plugins/pkg/ns
 github.com/containernetworking/plugins/pkg/ip
@ -169,7 +170,7 @@ github.com/coreos/go-systemd/sdjournal
 github.com/coreos/go-systemd/journal
 # github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f
 github.com/coreos/pkg/dlopen
-# github.com/cri-o/ocicni v0.1.1-0.20190702175919-7762645d18ca
+# github.com/cri-o/ocicni v0.1.1-0.20190920040751-deac903fd99b
 github.com/cri-o/ocicni/pkg/ocicni
 # github.com/cyphar/filepath-securejoin v0.2.2
 github.com/cyphar/filepath-securejoin