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29299b73df
- So that a DHCP based plugin can express it needs the endpoint MAC address when requested for an IP address. - In such case libnetwork will allocate one if not already provided by user Signed-off-by: Alessandro Boch <aboch@docker.com>
458 lines
12 KiB
Go
458 lines
12 KiB
Go
package libnetwork
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import (
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"encoding/json"
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"fmt"
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"net"
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"testing"
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"github.com/docker/libnetwork/datastore"
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"github.com/docker/libnetwork/driverapi"
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"github.com/docker/libnetwork/ipamapi"
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"github.com/docker/libnetwork/netlabel"
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"github.com/docker/libnetwork/testutils"
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"github.com/docker/libnetwork/types"
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)
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func TestDriverRegistration(t *testing.T) {
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bridgeNetType := "bridge"
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c, err := New()
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if err != nil {
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t.Fatal(err)
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}
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defer c.Stop()
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err = c.(*controller).RegisterDriver(bridgeNetType, nil, driverapi.Capability{})
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if err == nil {
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t.Fatalf("Expecting the RegisterDriver to fail for %s", bridgeNetType)
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}
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if _, ok := err.(driverapi.ErrActiveRegistration); !ok {
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t.Fatalf("Failed for unexpected reason: %v", err)
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}
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err = c.(*controller).RegisterDriver("test-dummy", nil, driverapi.Capability{})
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if err != nil {
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t.Fatalf("Test failed with an error %v", err)
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}
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}
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func TestIpamDriverRegistration(t *testing.T) {
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c, err := New()
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if err != nil {
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t.Fatal(err)
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}
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defer c.Stop()
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err = c.(*controller).RegisterIpamDriver("", nil)
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if err == nil {
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t.Fatalf("Expected failure, but suceeded")
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}
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if _, ok := err.(types.BadRequestError); !ok {
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t.Fatalf("Failed for unexpected reason: %v", err)
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}
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err = c.(*controller).RegisterIpamDriver(ipamapi.DefaultIPAM, nil)
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if err == nil {
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t.Fatalf("Expected failure, but suceeded")
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}
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if _, ok := err.(types.ForbiddenError); !ok {
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t.Fatalf("Failed for unexpected reason: %v", err)
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}
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}
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func TestNetworkMarshalling(t *testing.T) {
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n := &network{
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name: "Miao",
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id: "abccba",
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ipamType: "default",
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addrSpace: "viola",
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networkType: "bridge",
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enableIPv6: true,
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persist: true,
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ipamV4Config: []*IpamConf{
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&IpamConf{
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PreferredPool: "10.2.0.0/16",
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SubPool: "10.2.0.0/24",
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Options: map[string]string{
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netlabel.MacAddress: "a:b:c:d:e:f",
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},
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Gateway: "",
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AuxAddresses: nil,
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},
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&IpamConf{
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PreferredPool: "10.2.0.0/16",
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SubPool: "10.2.1.0/24",
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Options: nil,
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Gateway: "10.2.1.254",
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},
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},
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ipamV6Config: []*IpamConf{
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&IpamConf{
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PreferredPool: "abcd::/64",
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SubPool: "abcd:abcd:abcd:abcd:abcd::/80",
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Gateway: "abcd::29/64",
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AuxAddresses: nil,
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},
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},
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ipamV4Info: []*IpamInfo{
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&IpamInfo{
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PoolID: "ipoolverde123",
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Meta: map[string]string{
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netlabel.Gateway: "10.2.1.255/16",
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},
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IPAMData: driverapi.IPAMData{
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AddressSpace: "viola",
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Pool: &net.IPNet{
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IP: net.IP{10, 2, 0, 0},
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Mask: net.IPMask{255, 255, 255, 0},
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},
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Gateway: nil,
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AuxAddresses: nil,
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},
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},
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&IpamInfo{
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PoolID: "ipoolblue345",
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Meta: map[string]string{
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netlabel.Gateway: "10.2.1.255/16",
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},
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IPAMData: driverapi.IPAMData{
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AddressSpace: "viola",
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Pool: &net.IPNet{
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IP: net.IP{10, 2, 1, 0},
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Mask: net.IPMask{255, 255, 255, 0},
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},
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Gateway: &net.IPNet{IP: net.IP{10, 2, 1, 254}, Mask: net.IPMask{255, 255, 255, 0}},
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AuxAddresses: map[string]*net.IPNet{
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"ip3": &net.IPNet{IP: net.IP{10, 2, 1, 3}, Mask: net.IPMask{255, 255, 255, 0}},
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"ip5": &net.IPNet{IP: net.IP{10, 2, 1, 55}, Mask: net.IPMask{255, 255, 255, 0}},
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},
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},
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},
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&IpamInfo{
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PoolID: "weirdinfo",
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IPAMData: driverapi.IPAMData{
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Gateway: &net.IPNet{
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IP: net.IP{11, 2, 1, 255},
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Mask: net.IPMask{255, 0, 0, 0},
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},
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},
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},
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},
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ipamV6Info: []*IpamInfo{
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&IpamInfo{
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PoolID: "ipoolv6",
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IPAMData: driverapi.IPAMData{
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AddressSpace: "viola",
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Pool: &net.IPNet{
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IP: net.IP{0xab, 0xcd, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Mask: net.IPMask{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0},
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},
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Gateway: &net.IPNet{
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IP: net.IP{0xab, 0xcd, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 29},
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Mask: net.IPMask{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0},
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},
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AuxAddresses: nil,
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},
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},
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},
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}
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b, err := json.Marshal(n)
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if err != nil {
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t.Fatal(err)
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}
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nn := &network{}
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err = json.Unmarshal(b, nn)
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if err != nil {
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t.Fatal(err)
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}
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if n.name != nn.name || n.id != nn.id || n.networkType != nn.networkType || n.ipamType != nn.ipamType ||
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n.addrSpace != nn.addrSpace || n.enableIPv6 != nn.enableIPv6 ||
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n.persist != nn.persist || !compareIpamConfList(n.ipamV4Config, nn.ipamV4Config) ||
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!compareIpamInfoList(n.ipamV4Info, nn.ipamV4Info) || !compareIpamConfList(n.ipamV6Config, nn.ipamV6Config) ||
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!compareIpamInfoList(n.ipamV6Info, nn.ipamV6Info) {
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t.Fatalf("JSON marsh/unmarsh failed."+
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"\nOriginal:\n%#v\nDecoded:\n%#v"+
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"\nOriginal ipamV4Conf: %#v\n\nDecoded ipamV4Conf: %#v"+
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"\nOriginal ipamV4Info: %s\n\nDecoded ipamV4Info: %s"+
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"\nOriginal ipamV6Conf: %#v\n\nDecoded ipamV6Conf: %#v"+
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"\nOriginal ipamV6Info: %s\n\nDecoded ipamV6Info: %s",
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n, nn, printIpamConf(n.ipamV4Config), printIpamConf(nn.ipamV4Config),
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printIpamInfo(n.ipamV4Info), printIpamInfo(nn.ipamV4Info),
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printIpamConf(n.ipamV6Config), printIpamConf(nn.ipamV6Config),
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printIpamInfo(n.ipamV6Info), printIpamInfo(nn.ipamV6Info))
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}
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}
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func printIpamConf(list []*IpamConf) string {
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s := fmt.Sprintf("\n[]*IpamConfig{")
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for _, i := range list {
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s = fmt.Sprintf("%s %v,", s, i)
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}
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s = fmt.Sprintf("%s}", s)
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return s
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}
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func printIpamInfo(list []*IpamInfo) string {
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s := fmt.Sprintf("\n[]*IpamInfo{")
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for _, i := range list {
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s = fmt.Sprintf("%s\n{\n%s\n}", s, i)
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}
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s = fmt.Sprintf("%s\n}", s)
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return s
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}
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func TestEndpointMarshalling(t *testing.T) {
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ip, nw6, err := net.ParseCIDR("2001:3002:4003::122/64")
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if err != nil {
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t.Fatal(err)
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}
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nw6.IP = ip
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e := &endpoint{
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name: "Bau",
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id: "efghijklmno",
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sandboxID: "ambarabaciccicocco",
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anonymous: true,
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iface: &endpointInterface{
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mac: []byte{11, 12, 13, 14, 15, 16},
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addr: &net.IPNet{
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IP: net.IP{10, 0, 1, 23},
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Mask: net.IPMask{255, 255, 255, 0},
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},
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addrv6: nw6,
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srcName: "veth12ab1314",
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dstPrefix: "eth",
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v4PoolID: "poolpool",
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v6PoolID: "poolv6",
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},
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}
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b, err := json.Marshal(e)
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if err != nil {
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t.Fatal(err)
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}
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ee := &endpoint{}
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err = json.Unmarshal(b, ee)
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if err != nil {
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t.Fatal(err)
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}
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if e.name != ee.name || e.id != ee.id || e.sandboxID != ee.sandboxID || !compareEndpointInterface(e.iface, ee.iface) || e.anonymous != ee.anonymous {
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t.Fatalf("JSON marsh/unmarsh failed.\nOriginal:\n%#v\nDecoded:\n%#v\nOriginal iface: %#v\nDecodediface:\n%#v", e, ee, e.iface, ee.iface)
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}
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}
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func compareEndpointInterface(a, b *endpointInterface) bool {
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if a == b {
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return true
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}
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if a == nil || b == nil {
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return false
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}
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return a.srcName == b.srcName && a.dstPrefix == b.dstPrefix && a.v4PoolID == b.v4PoolID && a.v6PoolID == b.v6PoolID &&
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types.CompareIPNet(a.addr, b.addr) && types.CompareIPNet(a.addrv6, b.addrv6)
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}
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func compareIpamConfList(listA, listB []*IpamConf) bool {
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var a, b *IpamConf
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if len(listA) != len(listB) {
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return false
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}
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for i := 0; i < len(listA); i++ {
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a = listA[i]
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b = listB[i]
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if a.PreferredPool != b.PreferredPool ||
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a.SubPool != b.SubPool ||
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!compareStringMaps(a.Options, b.Options) ||
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a.Gateway != b.Gateway || !compareStringMaps(a.AuxAddresses, b.AuxAddresses) {
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return false
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}
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}
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return true
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}
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func compareIpamInfoList(listA, listB []*IpamInfo) bool {
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var a, b *IpamInfo
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if len(listA) != len(listB) {
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return false
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}
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for i := 0; i < len(listA); i++ {
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a = listA[i]
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b = listB[i]
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if a.PoolID != b.PoolID || !compareStringMaps(a.Meta, b.Meta) ||
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!types.CompareIPNet(a.Gateway, b.Gateway) ||
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a.AddressSpace != b.AddressSpace ||
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!types.CompareIPNet(a.Pool, b.Pool) ||
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!compareAddresses(a.AuxAddresses, b.AuxAddresses) {
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return false
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}
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}
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return true
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}
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func compareStringMaps(a, b map[string]string) bool {
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if len(a) != len(b) {
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return false
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}
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if len(a) > 0 {
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for k := range a {
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if a[k] != b[k] {
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return false
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}
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}
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}
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return true
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}
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func compareAddresses(a, b map[string]*net.IPNet) bool {
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if len(a) != len(b) {
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return false
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}
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if len(a) > 0 {
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for k := range a {
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if !types.CompareIPNet(a[k], b[k]) {
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return false
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}
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}
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}
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return true
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}
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func TestAuxAddresses(t *testing.T) {
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c, err := New()
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if err != nil {
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t.Fatal(err)
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}
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defer c.Stop()
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n := &network{ipamType: ipamapi.DefaultIPAM, networkType: "bridge", ctrlr: c.(*controller)}
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input := []struct {
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masterPool string
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subPool string
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auxAddresses map[string]string
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good bool
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}{
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{"192.168.0.0/16", "", map[string]string{"goodOne": "192.168.2.2"}, true},
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{"192.168.0.0/16", "", map[string]string{"badOne": "192.169.2.3"}, false},
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{"192.168.0.0/16", "192.168.1.0/24", map[string]string{"goodOne": "192.168.1.2"}, true},
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{"192.168.0.0/16", "192.168.1.0/24", map[string]string{"stillGood": "192.168.2.4"}, true},
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{"192.168.0.0/16", "192.168.1.0/24", map[string]string{"badOne": "192.169.2.4"}, false},
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}
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for _, i := range input {
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n.ipamV4Config = []*IpamConf{&IpamConf{PreferredPool: i.masterPool, SubPool: i.subPool, AuxAddresses: i.auxAddresses}}
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err = n.ipamAllocate()
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if i.good != (err == nil) {
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t.Fatalf("Unexpected result for %v: %v", i, err)
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}
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n.ipamRelease()
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}
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}
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func TestIpamReleaseOnNetDriverFailures(t *testing.T) {
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if !testutils.IsRunningInContainer() {
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defer testutils.SetupTestOSContext(t)()
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}
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cfgOptions, err := OptionBoltdbWithRandomDBFile()
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c, err := New(cfgOptions...)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Stop()
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cc := c.(*controller)
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bd := badDriver{failNetworkCreation: true}
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cc.drivers[badDriverName] = &driverData{driver: &bd, capability: driverapi.Capability{DataScope: datastore.LocalScope}}
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// Test whether ipam state release is invoked on network create failure from net driver
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// by checking whether subsequent network creation requesting same gateway IP succeeds
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ipamOpt := NetworkOptionIpam(ipamapi.DefaultIPAM, "", []*IpamConf{&IpamConf{PreferredPool: "10.34.0.0/16", Gateway: "10.34.255.254"}}, nil)
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if _, err := c.NewNetwork(badDriverName, "badnet1", ipamOpt); err == nil {
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t.Fatalf("bad network driver should have failed network creation")
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}
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gnw, err := c.NewNetwork("bridge", "goodnet1", ipamOpt)
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if err != nil {
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t.Fatal(err)
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}
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gnw.Delete()
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// Now check whether ipam release works on endpoint creation failure
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bd.failNetworkCreation = false
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bnw, err := c.NewNetwork(badDriverName, "badnet2", ipamOpt)
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if err != nil {
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t.Fatal(err)
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}
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defer bnw.Delete()
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if _, err := bnw.CreateEndpoint("ep0"); err == nil {
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t.Fatalf("bad network driver should have failed endpoint creation")
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}
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// Now create good bridge network with different gateway
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ipamOpt2 := NetworkOptionIpam(ipamapi.DefaultIPAM, "", []*IpamConf{&IpamConf{PreferredPool: "10.34.0.0/16", Gateway: "10.34.255.253"}}, nil)
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gnw, err = c.NewNetwork("bridge", "goodnet2", ipamOpt2)
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if err != nil {
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t.Fatal(err)
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}
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defer gnw.Delete()
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ep, err := gnw.CreateEndpoint("ep1")
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if err != nil {
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t.Fatal(err)
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}
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defer ep.Delete()
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expectedIP, _ := types.ParseCIDR("10.34.0.1/16")
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if !types.CompareIPNet(ep.Info().Iface().Address(), expectedIP) {
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t.Fatalf("Ipam release must have failed, endpoint has unexpected address: %v", ep.Info().Iface().Address())
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}
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}
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var badDriverName = "bad network driver"
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type badDriver struct {
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failNetworkCreation bool
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}
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func (b *badDriver) CreateNetwork(nid string, options map[string]interface{}, ipV4Data, ipV6Data []driverapi.IPAMData) error {
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if b.failNetworkCreation {
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return fmt.Errorf("I will not create any network")
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}
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return nil
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}
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func (b *badDriver) DeleteNetwork(nid string) error {
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return nil
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}
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func (b *badDriver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, options map[string]interface{}) error {
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return fmt.Errorf("I will not create any endpoint")
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}
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func (b *badDriver) DeleteEndpoint(nid, eid string) error {
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return nil
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}
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func (b *badDriver) EndpointOperInfo(nid, eid string) (map[string]interface{}, error) {
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return nil, nil
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}
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func (b *badDriver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
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return fmt.Errorf("I will not allow any join")
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}
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func (b *badDriver) Leave(nid, eid string) error {
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return nil
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}
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func (b *badDriver) DiscoverNew(dType driverapi.DiscoveryType, data interface{}) error {
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return nil
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}
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func (b *badDriver) DiscoverDelete(dType driverapi.DiscoveryType, data interface{}) error {
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return nil
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}
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func (b *badDriver) Type() string {
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return badDriverName
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}
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