827 lines
26 KiB
Go
827 lines
26 KiB
Go
//go:build linux
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// +build linux
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package netavark_test
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// The tests have to be run as root.
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// For each test there will be two network namespaces created,
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// netNSTest and netNSContainer. Each test must be run inside
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// netNSTest to prevent leakage in the host netns, therefore
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// it should use the following structure:
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// It("test name", func() {
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// runTest(func() {
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// // add test logic here
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// })
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// })
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import (
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"io/ioutil"
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"net"
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"os"
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"strconv"
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"sync"
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"time"
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"github.com/containernetworking/plugins/pkg/ns"
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"github.com/containers/common/libnetwork/types"
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"github.com/containers/common/libnetwork/util"
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"github.com/containers/common/pkg/netns"
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"github.com/containers/storage/pkg/stringid"
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"github.com/containers/storage/pkg/unshare"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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"github.com/sirupsen/logrus"
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"github.com/vishvananda/netlink"
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)
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var _ = Describe("run netavark", func() {
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var (
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libpodNet types.ContainerNetwork
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confDir string
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netNSTest ns.NetNS
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netNSContainer ns.NetNS
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)
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// runTest is a helper function to run a test. It ensures that each test
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// is run in its own netns. It also creates a mountns to mount a tmpfs to /var/lib/cni.
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runTest := func(run func()) {
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netNSTest.Do(func(_ ns.NetNS) error {
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defer GinkgoRecover()
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// we have to setup the loopback adapter in this netns to use port forwarding
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link, err := netlink.LinkByName("lo")
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Expect(err).To(BeNil(), "Failed to get loopback adapter")
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err = netlink.LinkSetUp(link)
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Expect(err).To(BeNil(), "Failed to set loopback adapter up")
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run()
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return nil
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})
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}
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BeforeEach(func() {
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if _, ok := os.LookupEnv("NETAVARK_BINARY"); !ok {
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Skip("NETAVARK_BINARY not set skip run tests")
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}
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// set the logrus settings
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logrus.SetLevel(logrus.TraceLevel)
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// disable extra quotes so we can easily copy the netavark command
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logrus.SetFormatter(&logrus.TextFormatter{DisableQuote: true})
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logrus.SetOutput(os.Stderr)
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// The tests need root privileges.
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// Technically we could work around that by using user namespaces and
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// the rootless cni code but this is to much work to get it right for a unit test.
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if unshare.IsRootless() {
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Skip("this test needs to be run as root")
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}
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var err error
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confDir, err = ioutil.TempDir("", "podman_netavark_test")
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if err != nil {
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Fail("Failed to create tmpdir")
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}
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netNSTest, err = netns.NewNS()
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if err != nil {
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Fail("Failed to create netns")
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}
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netNSContainer, err = netns.NewNS()
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if err != nil {
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Fail("Failed to create netns")
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}
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// Force iptables driver, firewalld is broken inside the extra
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// namespace because it still connects to firewalld on the host.
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_ = os.Setenv("NETAVARK_FW", "iptables")
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})
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JustBeforeEach(func() {
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var err error
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libpodNet, err = getNetworkInterface(confDir)
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if err != nil {
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Fail("Failed to create NewCNINetworkInterface")
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}
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})
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AfterEach(func() {
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logrus.SetFormatter(&logrus.TextFormatter{})
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logrus.SetLevel(logrus.InfoLevel)
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os.RemoveAll(confDir)
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netns.UnmountNS(netNSTest)
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netNSTest.Close()
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netns.UnmountNS(netNSContainer)
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netNSContainer.Close()
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_ = os.Unsetenv("NETAVARK_FW")
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})
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It("test basic setup", func() {
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runTest(func() {
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defNet := types.DefaultNetworkName
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intName := "eth0"
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opts := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: "someID",
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ContainerName: "someName",
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Networks: map[string]types.PerNetworkOptions{
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defNet: {
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InterfaceName: intName,
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StaticMAC: types.HardwareAddr{0x44, 0x33, 0x22, 0x44, 0x33, 0x22},
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},
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},
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},
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}
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res, err := libpodNet.Setup(netNSContainer.Path(), opts)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(1))
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Expect(res).To(HaveKey(defNet))
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Expect(res[defNet].Interfaces).To(HaveKey(intName))
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Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
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ip := res[defNet].Interfaces[intName].Subnets[0].IPNet.IP
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Expect(ip.String()).To(ContainSubstring("10.88.0."))
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gw := res[defNet].Interfaces[intName].Subnets[0].Gateway
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util.NormalizeIP(&gw)
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Expect(gw.String()).To(Equal("10.88.0.1"))
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macAddress := res[defNet].Interfaces[intName].MacAddress
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Expect(macAddress).To(HaveLen(6))
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// default network has no dns
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Expect(res[defNet].DNSServerIPs).To(BeEmpty())
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Expect(res[defNet].DNSSearchDomains).To(BeEmpty())
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// check in the container namespace if the settings are applied
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err = netNSContainer.Do(func(_ ns.NetNS) error {
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defer GinkgoRecover()
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i, err := net.InterfaceByName(intName)
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Expect(err).To(BeNil())
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Expect(i.Name).To(Equal(intName))
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Expect(i.HardwareAddr).To(Equal(net.HardwareAddr(macAddress)))
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addrs, err := i.Addrs()
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Expect(err).To(BeNil())
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subnet := &net.IPNet{
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IP: ip,
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Mask: net.CIDRMask(16, 32),
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}
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Expect(addrs).To(ContainElements(EqualSubnet(subnet)))
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// check loopback adapter
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i, err = net.InterfaceByName("lo")
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Expect(err).To(BeNil())
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Expect(i.Name).To(Equal("lo"))
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Expect(i.Flags & net.FlagLoopback).To(Equal(net.FlagLoopback))
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Expect(i.Flags&net.FlagUp).To(Equal(net.FlagUp), "Loopback adapter should be up")
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return nil
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})
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Expect(err).To(BeNil())
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// default bridge name
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bridgeName := "podman0"
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// check settings on the host side
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i, err := net.InterfaceByName(bridgeName)
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal(bridgeName))
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addrs, err := i.Addrs()
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Expect(err).ToNot(HaveOccurred())
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// test that the gateway ip is assigned to the interface
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subnet := &net.IPNet{
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IP: gw,
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Mask: net.CIDRMask(16, 32),
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}
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Expect(addrs).To(ContainElements(EqualSubnet(subnet)))
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wg := &sync.WaitGroup{}
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expected := stringid.GenerateNonCryptoID()
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// now check ip connectivity
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err = netNSContainer.Do(func(_ ns.NetNS) error {
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wg.Add(1)
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runNetListener(wg, "tcp", "0.0.0.0", 5000, expected)
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return nil
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})
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Expect(err).ToNot(HaveOccurred())
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conn, err := net.Dial("tcp", ip.String()+":5000")
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Expect(err).To(BeNil())
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_, err = conn.Write([]byte(expected))
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Expect(err).To(BeNil())
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conn.Close()
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err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(opts))
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Expect(err).ToNot(HaveOccurred())
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wg.Wait()
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})
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})
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It("static mac", func() {
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runTest(func() {
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defNet := types.DefaultNetworkName
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intName := "eth0"
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mac := types.HardwareAddr{0x44, 0x33, 0x22, 0x44, 0x33, 0x22}
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opts := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: "someID",
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ContainerName: "someName",
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Networks: map[string]types.PerNetworkOptions{
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defNet: {
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InterfaceName: intName,
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StaticMAC: mac,
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},
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},
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},
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}
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res, err := libpodNet.Setup(netNSContainer.Path(), opts)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(1))
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Expect(res).To(HaveKey(defNet))
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Expect(res[defNet].Interfaces).To(HaveKey(intName))
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Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
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macAddress := res[defNet].Interfaces[intName].MacAddress
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Expect(macAddress).To(Equal(mac))
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// check in the container namespace if the settings are applied
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err = netNSContainer.Do(func(_ ns.NetNS) error {
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defer GinkgoRecover()
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i, err := net.InterfaceByName(intName)
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Expect(err).To(BeNil())
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Expect(i.Name).To(Equal(intName))
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Expect(i.HardwareAddr).To(Equal(net.HardwareAddr(macAddress)))
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return nil
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})
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Expect(err).To(BeNil())
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})
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})
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It("setup two containers", func() {
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runTest(func() {
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defNet := types.DefaultNetworkName
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intName := "eth0"
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setupOpts1 := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: stringid.GenerateNonCryptoID(),
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Networks: map[string]types.PerNetworkOptions{
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defNet: {InterfaceName: intName},
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},
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},
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}
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res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts1)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(1))
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Expect(res).To(HaveKey(defNet))
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Expect(res[defNet].Interfaces).To(HaveKey(intName))
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Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
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ip1 := res[defNet].Interfaces[intName].Subnets[0].IPNet.IP
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Expect(ip1.String()).To(ContainSubstring("10.88.0."))
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Expect(res[defNet].Interfaces[intName].MacAddress).To(HaveLen(6))
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setupOpts2 := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: stringid.GenerateNonCryptoID(),
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Networks: map[string]types.PerNetworkOptions{
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defNet: {InterfaceName: intName},
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},
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},
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}
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netNSContainer2, err := netns.NewNS()
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Expect(err).ToNot(HaveOccurred())
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defer netns.UnmountNS(netNSContainer2)
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defer netNSContainer2.Close()
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res, err = libpodNet.Setup(netNSContainer2.Path(), setupOpts2)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(1))
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Expect(res).To(HaveKey(defNet))
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Expect(res[defNet].Interfaces).To(HaveKey(intName))
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Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
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ip2 := res[defNet].Interfaces[intName].Subnets[0].IPNet.IP
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Expect(ip2.String()).To(ContainSubstring("10.88.0."))
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Expect(res[defNet].Interfaces[intName].MacAddress).To(HaveLen(6))
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Expect(ip1.Equal(ip2)).To(BeFalse(), "IP1 %s should not be equal to IP2 %s", ip1.String(), ip2.String())
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err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts1))
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Expect(err).ToNot(HaveOccurred())
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err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts2))
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Expect(err).ToNot(HaveOccurred())
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})
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})
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It("setup dualstack network", func() {
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runTest(func() {
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s1, _ := types.ParseCIDR("10.0.0.1/24")
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s2, _ := types.ParseCIDR("fd10:88:a::/64")
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network, err := libpodNet.NetworkCreate(types.Network{
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Subnets: []types.Subnet{
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{Subnet: s1}, {Subnet: s2},
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},
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})
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Expect(err).ToNot(HaveOccurred())
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netName := network.Name
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intName := "eth0"
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setupOpts := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: stringid.GenerateNonCryptoID(),
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Networks: map[string]types.PerNetworkOptions{
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netName: {InterfaceName: intName},
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},
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},
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}
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res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(1))
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Expect(res).To(HaveKey(netName))
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Expect(res[netName].Interfaces).To(HaveKey(intName))
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Expect(res[netName].Interfaces[intName].Subnets).To(HaveLen(2))
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ip1 := res[netName].Interfaces[intName].Subnets[0].IPNet.IP
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Expect(ip1.String()).To(ContainSubstring("10.0.0."))
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gw1 := res[netName].Interfaces[intName].Subnets[0].Gateway
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Expect(gw1.String()).To(Equal("10.0.0.1"))
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ip2 := res[netName].Interfaces[intName].Subnets[1].IPNet.IP
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Expect(ip2.String()).To(ContainSubstring("fd10:88:a::"))
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gw2 := res[netName].Interfaces[intName].Subnets[1].Gateway
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Expect(gw2.String()).To(Equal("fd10:88:a::1"))
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Expect(res[netName].Interfaces[intName].MacAddress).To(HaveLen(6))
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// check in the container namespace if the settings are applied
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err = netNSContainer.Do(func(_ ns.NetNS) error {
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defer GinkgoRecover()
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i, err := net.InterfaceByName(intName)
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal(intName))
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addrs, err := i.Addrs()
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Expect(err).ToNot(HaveOccurred())
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subnet1 := s1.IPNet
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subnet1.IP = ip1
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subnet2 := s2.IPNet
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subnet2.IP = ip2
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Expect(addrs).To(ContainElements(EqualSubnet(&subnet1), EqualSubnet(&subnet2)))
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// check loopback adapter
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i, err = net.InterfaceByName("lo")
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal("lo"))
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Expect(i.Flags & net.FlagLoopback).To(Equal(net.FlagLoopback))
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Expect(i.Flags&net.FlagUp).To(Equal(net.FlagUp), "Loopback adapter should be up")
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return nil
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})
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Expect(err).ToNot(HaveOccurred())
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bridgeName := network.NetworkInterface
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// check settings on the host side
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i, err := net.InterfaceByName(bridgeName)
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal(bridgeName))
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addrs, err := i.Addrs()
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Expect(err).ToNot(HaveOccurred())
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// test that the gateway ip is assigned to the interface
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subnet1 := s1.IPNet
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subnet1.IP = gw1
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subnet2 := s2.IPNet
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subnet2.IP = gw2
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Expect(addrs).To(ContainElements(EqualSubnet(&subnet1), EqualSubnet(&subnet2)))
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err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
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Expect(err).ToNot(HaveOccurred())
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})
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})
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It("setup two networks", func() {
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runTest(func() {
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s1, _ := types.ParseCIDR("10.0.0.1/24")
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network1, err := libpodNet.NetworkCreate(types.Network{
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Subnets: []types.Subnet{
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{Subnet: s1},
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},
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})
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Expect(err).ToNot(HaveOccurred())
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netName1 := network1.Name
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intName1 := "eth0"
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s2, _ := types.ParseCIDR("10.1.0.0/24")
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network2, err := libpodNet.NetworkCreate(types.Network{
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Subnets: []types.Subnet{
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{Subnet: s2},
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},
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})
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Expect(err).ToNot(HaveOccurred())
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netName2 := network2.Name
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intName2 := "eth1"
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setupOpts := types.SetupOptions{
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NetworkOptions: types.NetworkOptions{
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ContainerID: stringid.GenerateNonCryptoID(),
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Networks: map[string]types.PerNetworkOptions{
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netName1: {InterfaceName: intName1},
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netName2: {InterfaceName: intName2},
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},
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},
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}
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res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
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Expect(err).ToNot(HaveOccurred())
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Expect(res).To(HaveLen(2))
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Expect(res).To(HaveKey(netName1))
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Expect(res).To(HaveKey(netName2))
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Expect(res[netName1].Interfaces).To(HaveKey(intName1))
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Expect(res[netName2].Interfaces).To(HaveKey(intName2))
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Expect(res[netName1].Interfaces[intName1].Subnets).To(HaveLen(1))
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ip1 := res[netName1].Interfaces[intName1].Subnets[0].IPNet.IP
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Expect(ip1.String()).To(ContainSubstring("10.0.0."))
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gw1 := res[netName1].Interfaces[intName1].Subnets[0].Gateway
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Expect(gw1.String()).To(Equal("10.0.0.1"))
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ip2 := res[netName2].Interfaces[intName2].Subnets[0].IPNet.IP
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Expect(ip2.String()).To(ContainSubstring("10.1.0."))
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gw2 := res[netName2].Interfaces[intName2].Subnets[0].Gateway
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Expect(gw2.String()).To(Equal("10.1.0.1"))
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mac1 := res[netName1].Interfaces[intName1].MacAddress
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Expect(mac1).To(HaveLen(6))
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mac2 := res[netName2].Interfaces[intName2].MacAddress
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Expect(mac2).To(HaveLen(6))
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|
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// check in the container namespace if the settings are applied
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err = netNSContainer.Do(func(_ ns.NetNS) error {
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defer GinkgoRecover()
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i, err := net.InterfaceByName(intName1)
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal(intName1))
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addrs, err := i.Addrs()
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Expect(err).ToNot(HaveOccurred())
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subnet1 := s1.IPNet
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subnet1.IP = ip1
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Expect(addrs).To(ContainElements(EqualSubnet(&subnet1)))
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i, err = net.InterfaceByName(intName2)
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Expect(err).ToNot(HaveOccurred())
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Expect(i.Name).To(Equal(intName2))
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addrs, err = i.Addrs()
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|
Expect(err).ToNot(HaveOccurred())
|
|
subnet2 := s2.IPNet
|
|
subnet2.IP = ip2
|
|
Expect(addrs).To(ContainElements(EqualSubnet(&subnet2)))
|
|
|
|
// check loopback adapter
|
|
i, err = net.InterfaceByName("lo")
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(i.Name).To(Equal("lo"))
|
|
Expect(i.Flags & net.FlagLoopback).To(Equal(net.FlagLoopback))
|
|
Expect(i.Flags&net.FlagUp).To(Equal(net.FlagUp), "Loopback adapter should be up")
|
|
return nil
|
|
})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
|
|
bridgeName1 := network1.NetworkInterface
|
|
// check settings on the host side
|
|
i, err := net.InterfaceByName(bridgeName1)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(i.Name).To(Equal(bridgeName1))
|
|
addrs, err := i.Addrs()
|
|
Expect(err).ToNot(HaveOccurred())
|
|
// test that the gateway ip is assigned to the interface
|
|
subnet1 := s1.IPNet
|
|
subnet1.IP = gw1
|
|
Expect(addrs).To(ContainElements(EqualSubnet(&subnet1)))
|
|
|
|
bridgeName2 := network2.NetworkInterface
|
|
// check settings on the host side
|
|
i, err = net.InterfaceByName(bridgeName2)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(i.Name).To(Equal(bridgeName2))
|
|
addrs, err = i.Addrs()
|
|
Expect(err).ToNot(HaveOccurred())
|
|
// test that the gateway ip is assigned to the interface
|
|
subnet2 := s2.IPNet
|
|
subnet2.IP = gw2
|
|
Expect(addrs).To(ContainElements(EqualSubnet(&subnet2)))
|
|
|
|
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
})
|
|
})
|
|
|
|
for _, proto := range []string{"tcp", "udp"} {
|
|
// copy proto to extra var to keep correct references in the goroutines
|
|
protocol := proto
|
|
It("run with exposed ports protocol "+protocol, func() {
|
|
runTest(func() {
|
|
testdata := stringid.GenerateNonCryptoID()
|
|
defNet := types.DefaultNetworkName
|
|
intName := "eth0"
|
|
setupOpts := types.SetupOptions{
|
|
NetworkOptions: types.NetworkOptions{
|
|
ContainerID: stringid.GenerateNonCryptoID(),
|
|
PortMappings: []types.PortMapping{{
|
|
Protocol: protocol,
|
|
HostIP: "127.0.0.1",
|
|
HostPort: 5000,
|
|
ContainerPort: 5000,
|
|
}},
|
|
Networks: map[string]types.PerNetworkOptions{
|
|
defNet: {InterfaceName: intName},
|
|
},
|
|
},
|
|
}
|
|
res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
|
|
Expect(err).To(BeNil())
|
|
Expect(res).To(HaveLen(1))
|
|
Expect(res).To(HaveKey(defNet))
|
|
Expect(res[defNet].Interfaces).To(HaveKey(intName))
|
|
Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
|
|
Expect(res[defNet].Interfaces[intName].Subnets[0].IPNet.IP.String()).To(ContainSubstring("10.88.0."))
|
|
Expect(res[defNet].Interfaces[intName].MacAddress).To(HaveLen(6))
|
|
// default network has no dns
|
|
Expect(res[defNet].DNSServerIPs).To(BeEmpty())
|
|
Expect(res[defNet].DNSSearchDomains).To(BeEmpty())
|
|
var wg sync.WaitGroup
|
|
wg.Add(1)
|
|
// start a listener in the container ns
|
|
err = netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
runNetListener(&wg, protocol, "0.0.0.0", 5000, testdata)
|
|
return nil
|
|
})
|
|
Expect(err).To(BeNil())
|
|
|
|
conn, err := net.Dial(protocol, "127.0.0.1:5000")
|
|
Expect(err).To(BeNil())
|
|
_, err = conn.Write([]byte(testdata))
|
|
Expect(err).To(BeNil())
|
|
conn.Close()
|
|
|
|
// wait for the listener to finish
|
|
wg.Wait()
|
|
|
|
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
|
|
Expect(err).To(BeNil())
|
|
})
|
|
})
|
|
|
|
It("run with range ports protocol "+protocol, func() {
|
|
runTest(func() {
|
|
defNet := types.DefaultNetworkName
|
|
intName := "eth0"
|
|
setupOpts := types.SetupOptions{
|
|
NetworkOptions: types.NetworkOptions{
|
|
ContainerID: stringid.GenerateNonCryptoID(),
|
|
PortMappings: []types.PortMapping{{
|
|
Protocol: protocol,
|
|
HostIP: "127.0.0.1",
|
|
HostPort: 5001,
|
|
ContainerPort: 5000,
|
|
Range: 3,
|
|
}},
|
|
Networks: map[string]types.PerNetworkOptions{
|
|
defNet: {InterfaceName: intName},
|
|
},
|
|
},
|
|
}
|
|
res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
|
|
Expect(err).To(BeNil())
|
|
Expect(res).To(HaveLen(1))
|
|
Expect(res).To(HaveKey(defNet))
|
|
Expect(res[defNet].Interfaces).To(HaveKey(intName))
|
|
Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
|
|
containerIP := res[defNet].Interfaces[intName].Subnets[0].IPNet.IP.String()
|
|
Expect(containerIP).To(ContainSubstring("10.88.0."))
|
|
Expect(res[defNet].Interfaces[intName].MacAddress).To(HaveLen(6))
|
|
// default network has no dns
|
|
Expect(res[defNet].DNSServerIPs).To(BeEmpty())
|
|
Expect(res[defNet].DNSSearchDomains).To(BeEmpty())
|
|
|
|
// loop over all ports
|
|
for p := 5001; p < 5004; p++ {
|
|
port := p
|
|
var wg sync.WaitGroup
|
|
wg.Add(1)
|
|
testdata := stringid.GenerateNonCryptoID()
|
|
// start a listener in the container ns
|
|
err = netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
runNetListener(&wg, protocol, containerIP, port-1, testdata)
|
|
return nil
|
|
})
|
|
Expect(err).To(BeNil())
|
|
|
|
conn, err := net.Dial(protocol, net.JoinHostPort("127.0.0.1", strconv.Itoa(port)))
|
|
Expect(err).To(BeNil())
|
|
_, err = conn.Write([]byte(testdata))
|
|
Expect(err).To(BeNil())
|
|
conn.Close()
|
|
|
|
// wait for the listener to finish
|
|
wg.Wait()
|
|
}
|
|
|
|
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
|
|
Expect(err).To(BeNil())
|
|
})
|
|
})
|
|
}
|
|
|
|
It("simple teardown", func() {
|
|
runTest(func() {
|
|
defNet := types.DefaultNetworkName
|
|
intName := "eth0"
|
|
opts := types.SetupOptions{
|
|
NetworkOptions: types.NetworkOptions{
|
|
ContainerID: "someID",
|
|
ContainerName: "someName",
|
|
Networks: map[string]types.PerNetworkOptions{
|
|
defNet: {
|
|
InterfaceName: intName,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
res, err := libpodNet.Setup(netNSContainer.Path(), opts)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(res).To(HaveLen(1))
|
|
Expect(res).To(HaveKey(defNet))
|
|
Expect(res[defNet].Interfaces).To(HaveKey(intName))
|
|
Expect(res[defNet].Interfaces[intName].Subnets).To(HaveLen(1))
|
|
ip := res[defNet].Interfaces[intName].Subnets[0].IPNet.IP
|
|
Expect(ip.String()).To(ContainSubstring("10.88.0."))
|
|
gw := res[defNet].Interfaces[intName].Subnets[0].Gateway
|
|
Expect(gw.String()).To(Equal("10.88.0.1"))
|
|
macAddress := res[defNet].Interfaces[intName].MacAddress
|
|
Expect(macAddress).To(HaveLen(6))
|
|
|
|
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(opts))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
err = netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
// check that the container interface is removed
|
|
_, err := net.InterfaceByName(intName)
|
|
Expect(err).To(HaveOccurred())
|
|
return nil
|
|
})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
|
|
// default bridge name
|
|
bridgeName := "podman0"
|
|
// check that bridge interface was removed
|
|
_, err = net.InterfaceByName(bridgeName)
|
|
Expect(err).To(HaveOccurred())
|
|
})
|
|
})
|
|
|
|
It("test netavark error", func() {
|
|
runTest(func() {
|
|
intName := "eth0"
|
|
err := netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
|
|
attr := netlink.NewLinkAttrs()
|
|
attr.Name = "eth0"
|
|
err := netlink.LinkAdd(&netlink.Bridge{LinkAttrs: attr})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
return nil
|
|
})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
defNet := types.DefaultNetworkName
|
|
opts := types.SetupOptions{
|
|
NetworkOptions: types.NetworkOptions{
|
|
ContainerID: "someID",
|
|
ContainerName: "someName",
|
|
Networks: map[string]types.PerNetworkOptions{
|
|
defNet: {
|
|
InterfaceName: intName,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
_, err = libpodNet.Setup(netNSContainer.Path(), opts)
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.Error()).To(ContainSubstring("interface eth0 already exists on container namespace"))
|
|
})
|
|
})
|
|
|
|
It("setup ipam driver none network", func() {
|
|
runTest(func() {
|
|
network := types.Network{
|
|
IPAMOptions: map[string]string{
|
|
types.Driver: types.NoneIPAMDriver,
|
|
},
|
|
}
|
|
network1, err := libpodNet.NetworkCreate(network)
|
|
Expect(err).To(BeNil())
|
|
|
|
intName1 := "eth0"
|
|
netName1 := network1.Name
|
|
|
|
setupOpts := types.SetupOptions{
|
|
NetworkOptions: types.NetworkOptions{
|
|
ContainerID: stringid.GenerateNonCryptoID(),
|
|
Networks: map[string]types.PerNetworkOptions{
|
|
netName1: {
|
|
InterfaceName: intName1,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
res, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
|
|
Expect(err).To(BeNil())
|
|
Expect(res).To(HaveLen(1))
|
|
|
|
Expect(res).To(HaveKey(netName1))
|
|
Expect(res[netName1].Interfaces).To(HaveKey(intName1))
|
|
Expect(res[netName1].Interfaces[intName1].Subnets).To(HaveLen(0))
|
|
macInt1 := res[netName1].Interfaces[intName1].MacAddress
|
|
Expect(macInt1).To(HaveLen(6))
|
|
|
|
// check in the container namespace if the settings are applied
|
|
err = netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
i, err := net.InterfaceByName(intName1)
|
|
Expect(err).To(BeNil())
|
|
Expect(i.Name).To(Equal(intName1))
|
|
Expect(i.HardwareAddr).To(Equal(net.HardwareAddr(macInt1)))
|
|
addrs, err := i.Addrs()
|
|
Expect(err).To(BeNil())
|
|
// we still have the ipv6 link local address
|
|
Expect(addrs).To(HaveLen(1))
|
|
addr, ok := addrs[0].(*net.IPNet)
|
|
Expect(ok).To(BeTrue(), "cast address to ipnet")
|
|
// make sure we are link local
|
|
Expect(addr.IP.IsLinkLocalUnicast()).To(BeTrue(), "ip is link local address")
|
|
|
|
// check loopback adapter
|
|
i, err = net.InterfaceByName("lo")
|
|
Expect(err).To(BeNil())
|
|
Expect(i.Name).To(Equal("lo"))
|
|
Expect(i.Flags & net.FlagLoopback).To(Equal(net.FlagLoopback))
|
|
Expect(i.Flags&net.FlagUp).To(Equal(net.FlagUp), "Loopback adapter should be up")
|
|
return nil
|
|
})
|
|
Expect(err).To(BeNil())
|
|
|
|
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
|
|
Expect(err).To(BeNil())
|
|
|
|
// check in the container namespace that the interface is removed
|
|
err = netNSContainer.Do(func(_ ns.NetNS) error {
|
|
defer GinkgoRecover()
|
|
_, err := net.InterfaceByName(intName1)
|
|
Expect(err).To(HaveOccurred())
|
|
|
|
// check that only the loopback adapter is left
|
|
ints, err := net.Interfaces()
|
|
Expect(err).To(BeNil())
|
|
Expect(ints).To(HaveLen(1))
|
|
Expect(ints[0].Name).To(Equal("lo"))
|
|
Expect(ints[0].Flags & net.FlagLoopback).To(Equal(net.FlagLoopback))
|
|
Expect(ints[0].Flags&net.FlagUp).To(Equal(net.FlagUp), "Loopback adapter should be up")
|
|
|
|
return nil
|
|
})
|
|
Expect(err).To(BeNil())
|
|
})
|
|
})
|
|
})
|
|
|
|
func runNetListener(wg *sync.WaitGroup, protocol, ip string, port int, expectedData string) {
|
|
switch protocol {
|
|
case "tcp":
|
|
ln, err := net.Listen(protocol, net.JoinHostPort(ip, strconv.Itoa(port)))
|
|
Expect(err).To(BeNil())
|
|
// make sure to read in a separate goroutine to not block
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
defer ln.Close()
|
|
conn, err := ln.Accept()
|
|
Expect(err).To(BeNil())
|
|
defer conn.Close()
|
|
conn.SetDeadline(time.Now().Add(1 * time.Second))
|
|
data, err := ioutil.ReadAll(conn)
|
|
Expect(err).To(BeNil())
|
|
Expect(string(data)).To(Equal(expectedData))
|
|
}()
|
|
case "udp":
|
|
conn, err := net.ListenUDP("udp", &net.UDPAddr{
|
|
IP: net.ParseIP(ip),
|
|
Port: port,
|
|
})
|
|
Expect(err).To(BeNil())
|
|
conn.SetDeadline(time.Now().Add(1 * time.Second))
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
defer conn.Close()
|
|
data := make([]byte, len(expectedData))
|
|
i, err := conn.Read(data)
|
|
Expect(err).To(BeNil())
|
|
Expect(i).To(Equal(len(expectedData)))
|
|
Expect(string(data)).To(Equal(expectedData))
|
|
}()
|
|
default:
|
|
Fail("unsupported protocol")
|
|
}
|
|
}
|