mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
2aaef377f3
- Add IPAM cotract and remote IPAM hooks - Add ipam registration in controller - Have default IPAM follow ipamapi contract Signed-off-by: Alessandro Boch <aboch@docker.com>
825 lines
21 KiB
Go
825 lines
21 KiB
Go
package ipam
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import (
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"fmt"
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"net"
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"os"
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"testing"
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"time"
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"encoding/json"
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"github.com/docker/libnetwork/bitseq"
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"github.com/docker/libnetwork/config"
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"github.com/docker/libnetwork/datastore"
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"github.com/docker/libnetwork/ipamapi"
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"github.com/docker/libnetwork/netutils"
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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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var ds datastore.DataStore
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// enable w/ upper case
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func testMain(m *testing.M) {
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var err error
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ds, err = datastore.NewDataStore(&config.DatastoreCfg{Embedded: false, Client: config.DatastoreClientCfg{Provider: "consul", Address: "127.0.0.1:8500"}})
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if err != nil {
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fmt.Println(err)
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}
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os.Exit(m.Run())
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}
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func getAllocator(t *testing.T, subnet string) (*Allocator, string) {
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a, err := NewAllocator(nil, ds)
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if err != nil {
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t.Fatal(err)
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}
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poolID, _, _, err := a.RequestPool("default", subnet, "", nil, false)
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if err != nil {
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t.Fatal(err)
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}
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return a, poolID
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}
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func TestInt2IP2IntConversion(t *testing.T) {
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for i := uint32(0); i < 256*256*256; i++ {
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var array [4]byte // new array at each cycle
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addIntToIP(array[:], i)
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j := ipToUint32(array[:])
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if j != i {
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t.Fatalf("Failed to convert ordinal %d to IP % x and back to ordinal. Got %d", i, array, j)
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}
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}
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}
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func TestGetAddressVersion(t *testing.T) {
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if v4 != getAddressVersion(net.ParseIP("172.28.30.112")) {
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t.Fatalf("Failed to detect IPv4 version")
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}
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if v4 != getAddressVersion(net.ParseIP("0.0.0.1")) {
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t.Fatalf("Failed to detect IPv4 version")
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}
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if v6 != getAddressVersion(net.ParseIP("ff01::1")) {
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t.Fatalf("Failed to detect IPv6 version")
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}
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if v6 != getAddressVersion(net.ParseIP("2001:56::76:51")) {
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t.Fatalf("Failed to detect IPv6 version")
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}
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}
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func TestKeyString(t *testing.T) {
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k := &SubnetKey{AddressSpace: "default", Subnet: "172.27.0.0/16"}
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expected := "default/172.27.0.0/16"
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if expected != k.String() {
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t.Fatalf("Unexpected key string: %s", k.String())
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}
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k2 := &SubnetKey{}
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err := k2.FromString(expected)
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if err != nil {
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t.Fatal(err)
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}
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if k2.AddressSpace != k.AddressSpace || k2.Subnet != k.Subnet {
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t.Fatalf("SubnetKey.FromString() failed. Expected %v. Got %v", k, k2)
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}
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expected = fmt.Sprintf("%s/%s", expected, "172.27.3.0/24")
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k.ChildSubnet = "172.27.3.0/24"
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if expected != k.String() {
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t.Fatalf("Unexpected key string: %s", k.String())
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}
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err = k2.FromString(expected)
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if err != nil {
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t.Fatal(err)
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}
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if k2.AddressSpace != k.AddressSpace || k2.Subnet != k.Subnet || k2.ChildSubnet != k.ChildSubnet {
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t.Fatalf("SubnetKey.FromString() failed. Expected %v. Got %v", k, k2)
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}
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}
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func TestPoolDataMarshal(t *testing.T) {
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_, nw, err := net.ParseCIDR("172.28.30.1/24")
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if err != nil {
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t.Fatal(err)
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}
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p := &PoolData{
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ParentKey: SubnetKey{AddressSpace: "Blue", Subnet: "172.28.0.0/16"},
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Pool: nw,
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Range: &AddressRange{Sub: &net.IPNet{IP: net.IP{172, 28, 20, 0}, Mask: net.IPMask{255, 255, 255, 0}}, Start: 0, End: 255},
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RefCount: 4,
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}
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ba, err := json.Marshal(p)
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if err != nil {
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t.Fatal(err)
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}
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var q PoolData
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err = json.Unmarshal(ba, &q)
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if err != nil {
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t.Fatal(err)
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}
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if p.ParentKey != q.ParentKey || !types.CompareIPNet(p.Range.Sub, q.Range.Sub) ||
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p.Range.Start != q.Range.Start || p.Range.End != q.Range.End || p.RefCount != q.RefCount ||
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!types.CompareIPNet(p.Pool, q.Pool) {
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t.Fatalf("\n%#v\n%#v", p, &q)
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}
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p = &PoolData{
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ParentKey: SubnetKey{AddressSpace: "Blue", Subnet: "172.28.0.0/16"},
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Pool: nw,
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RefCount: 4,
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}
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ba, err = json.Marshal(p)
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if err != nil {
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t.Fatal(err)
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}
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err = json.Unmarshal(ba, &q)
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if err != nil {
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t.Fatal(err)
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}
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if q.Range != nil {
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t.Fatalf("Unexpected Range")
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}
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}
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func TestSubnetsMarshal(t *testing.T) {
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a, _ := NewAllocator(nil, nil)
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pid0, _, _, err := a.RequestPool(localAddressSpace, "192.168.0.0/16", "", nil, false)
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if err != nil {
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t.Fatal(err)
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}
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pid1, _, _, err := a.RequestPool(localAddressSpace, "192.169.0.0/16", "", nil, false)
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if err != nil {
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t.Fatal(err)
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}
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_, _, err = a.RequestAddress(pid0, nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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ba := a.Value()
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a.subnets = make(map[SubnetKey]*PoolData, 0)
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if err := a.SetValue(ba); err != nil {
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t.Fatal(err)
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}
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expIP := &net.IPNet{IP: net.IP{192, 168, 0, 2}, Mask: net.IPMask{255, 255, 0, 0}}
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ip, _, err := a.RequestAddress(pid0, nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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if !types.CompareIPNet(expIP, ip) {
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t.Fatalf("Got unexpected ip after pool config restore: %s", ip)
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}
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expIP = &net.IPNet{IP: net.IP{192, 169, 0, 1}, Mask: net.IPMask{255, 255, 0, 0}}
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ip, _, err = a.RequestAddress(pid1, nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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if !types.CompareIPNet(expIP, ip) {
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t.Fatalf("Got unexpected ip after pool config restore: %s", ip)
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}
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}
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func TestAddSubnets(t *testing.T) {
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a, err := NewAllocator(nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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pid0, _, _, err := a.RequestPool("default", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding subnet")
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}
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pid1, _, _, err := a.RequestPool("abc", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding overlapping subnets to different address spaces: %v", err)
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}
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if pid0 == pid1 {
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t.Fatalf("returned same pool id for same subnets in different namespaces")
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}
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pid, _, _, err := a.RequestPool("abc", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure requesting existing subnet: %v", err)
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}
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if pid != pid1 {
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t.Fatalf("returned different pool id for same subnet requests")
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}
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_, _, _, err = a.RequestPool("abc", "10.128.0.0/9", "", nil, false)
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if err == nil {
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t.Fatalf("Expected failure on adding overlapping base subnet")
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}
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pid2, _, _, err := a.RequestPool("abc", "10.0.0.0/8", "10.128.0.0/9", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure on adding sub pool: %v", err)
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}
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pid3, _, _, err := a.RequestPool("abc", "10.0.0.0/8", "10.128.0.0/9", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure on adding overlapping sub pool: %v", err)
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}
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if pid2 != pid3 {
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t.Fatalf("returned different pool id for same sub pool requests")
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}
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pid, _, _, err = a.RequestPool("default", "10.20.2.0/24", "", nil, false)
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if err == nil {
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t.Fatalf("Failed to detect overlapping subnets")
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}
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_, _, _, err = a.RequestPool("default", "10.128.0.0/9", "", nil, false)
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if err == nil {
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t.Fatalf("Failed to detect overlapping subnets")
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}
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_, _, _, err = a.RequestPool("default", "1003:1:2:3:4:5:6::/112", "", nil, false)
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if err != nil {
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t.Fatalf("Failed to add v6 subnet: %s", err.Error())
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}
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_, _, _, err = a.RequestPool("default", "1003:1:2:3::/64", "", nil, false)
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if err == nil {
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t.Fatalf("Failed to detect overlapping v6 subnet")
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}
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}
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func TestAddReleasePoolID(t *testing.T) {
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var k0, k1, k2 SubnetKey
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a, err := NewAllocator(nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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pid0, _, _, err := a.RequestPool("default", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding pool")
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}
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if err := k0.FromString(pid0); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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pid1, _, _, err := a.RequestPool("default", "10.0.0.0/8", "10.0.0.0/16", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding sub pool")
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}
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if err := k1.FromString(pid1); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k1].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k1, a.subnets[k1].RefCount)
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}
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pid2, _, _, err := a.RequestPool("default", "10.0.0.0/8", "10.0.0.0/16", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding sub pool")
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}
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if pid0 == pid1 || pid0 == pid2 || pid1 != pid2 {
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t.Fatalf("Incorrect poolIDs returned %s, %s, %s", pid0, pid1, pid2)
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}
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if err := k2.FromString(pid2); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k2].RefCount != 2 {
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t.Fatalf("Unexpected ref count for %s: %d", k2, a.subnets[k2].RefCount)
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}
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if a.subnets[k0].RefCount != 3 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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if err := a.ReleasePool(pid1); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k0].RefCount != 2 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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if err := a.ReleasePool(pid0); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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pid00, _, _, err := a.RequestPool("default", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding pool")
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}
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if pid00 != pid0 {
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t.Fatalf("main pool should still exist")
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}
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if a.subnets[k0].RefCount != 2 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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if err := a.ReleasePool(pid2); err != nil {
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t.Fatal(err)
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}
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if a.subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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if err := a.ReleasePool(pid00); err != nil {
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t.Fatal(err)
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}
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if bp, ok := a.subnets[k0]; ok {
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t.Fatalf("Base pool %s is still present: %v", k0, bp)
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}
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_, _, _, err = a.RequestPool("default", "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatalf("Unexpected failure in adding pool")
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}
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if a.subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, a.subnets[k0].RefCount)
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}
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}
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func TestPredefinedPool(t *testing.T) {
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a, err := NewAllocator(nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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if _, err := a.getPredefinedPool("blue", false); err == nil {
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t.Fatalf("Expected failure for non default addr space")
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}
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i, available, err := getFirstAvailablePool(a, localAddressSpace, 2)
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if err != nil {
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t.Skip(err)
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}
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pid, _, _, err := a.RequestPool(localAddressSpace, available.String(), "", nil, false)
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if err != nil {
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t.Fatal(err)
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}
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nw, err := a.getPredefinedPool(localAddressSpace, false)
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if err != nil {
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t.Fatal(err)
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}
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if nw != a.predefined[localAddressSpace][i+1] {
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t.Fatalf("Unexpected default network returned: %s", nw)
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}
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if err := a.ReleasePool(pid); err != nil {
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t.Fatal(err)
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}
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nw, err = a.getPredefinedPool(localAddressSpace, false)
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if err != nil {
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t.Fatal(err)
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}
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if nw != a.predefined[localAddressSpace][i] {
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t.Fatalf("Unexpected default network returned: %s", nw)
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}
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i, available, err = getFirstAvailablePool(a, globalAddressSpace, 2)
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if err != nil {
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t.Skip(err)
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}
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nw, err = a.getPredefinedPool(globalAddressSpace, false)
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if err != nil {
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t.Fatal(err)
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}
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if nw != available {
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t.Fatalf("Unexpected default network returned: %s", nw)
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}
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}
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func getFirstAvailablePool(a *Allocator, as string, atLeast int) (int, *net.IPNet, error) {
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i := 0
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for i < len(a.predefined[as])-1 {
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if err := netutils.CheckRouteOverlaps(a.predefined[as][i]); err == nil {
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break
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}
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i++
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}
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if i > len(a.predefined[as])-1-atLeast {
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return 0, nil, fmt.Errorf("Not enough non-overlapping networks to run the test")
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}
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return i, a.predefined[as][i], nil
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}
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func TestAdjustAndCheckSubnet(t *testing.T) {
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_, sub6, _ := net.ParseCIDR("1003:1:2:300::/63")
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_, err := adjustAndCheckSubnetSize(sub6)
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if err == nil {
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t.Fatalf("Failed detect too big v6 subnet")
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}
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_, sub, _ := net.ParseCIDR("192.0.0.0/7")
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_, err = adjustAndCheckSubnetSize(sub)
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if err == nil {
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t.Fatalf("Failed detect too big v4 subnet")
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}
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subnet := "1004:1:2:6::/64"
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_, sub6, _ = net.ParseCIDR(subnet)
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subnetToSplit, err := adjustAndCheckSubnetSize(sub6)
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if err != nil {
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t.Fatalf("Unexpected error returned by adjustAndCheckSubnetSize()")
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}
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ones, _ := subnetToSplit.Mask.Size()
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if ones < minNetSizeV6Eff {
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t.Fatalf("Wrong effective network size for %s. Expected: %d. Got: %d", subnet, minNetSizeV6Eff, ones)
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}
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}
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func TestRemoveSubnet(t *testing.T) {
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a, err := NewAllocator(nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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input := []struct {
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addrSpace string
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subnet string
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}{
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{"default", "192.168.0.0/16"},
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{"default", "172.17.0.0/16"},
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{"default", "10.0.0.0/8"},
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{"default", "2002:1:2:3:4:5:ffff::/112"},
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{"splane", "172.17.0.0/16"},
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{"splane", "10.0.0.0/8"},
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{"splane", "2002:1:2:3:4:5:6::/112"},
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{"splane", "2002:1:2:3:4:5:ffff::/112"},
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}
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poolIDs := make([]string, len(input))
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for ind, i := range input {
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if poolIDs[ind], _, _, err = a.RequestPool(i.addrSpace, i.subnet, "", nil, false); err != nil {
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t.Fatalf("Failed to apply input. Can't proceed: %s", err.Error())
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}
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}
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for ind, id := range poolIDs {
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if err := a.ReleasePool(id); err != nil {
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t.Fatalf("Failed to release poolID %s (%d)", id, ind)
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}
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}
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}
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func TestGetSameAddress(t *testing.T) {
|
|
a, err := NewAllocator(nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
pid, _, _, err := a.RequestPool("giallo", "192.168.100.0/24", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
ip := net.ParseIP("192.168.100.250")
|
|
_, _, err = a.RequestAddress(pid, ip, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
_, _, err = a.RequestAddress(pid, ip, nil)
|
|
if err == nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func TestRequestReleaseAddressFromSubPool(t *testing.T) {
|
|
a, err := NewAllocator(nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
poolID, _, _, err := a.RequestPool("rosso", "172.28.0.0/16", "172.28.30.0/24", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
var ip *net.IPNet
|
|
expected := &net.IPNet{IP: net.IP{172, 28, 30, 255}, Mask: net.IPMask{255, 255, 0, 0}}
|
|
for err == nil {
|
|
var c *net.IPNet
|
|
if c, _, err = a.RequestAddress(poolID, nil, nil); err == nil {
|
|
ip = c
|
|
}
|
|
}
|
|
if err != ipamapi.ErrNoAvailableIPs {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(expected, ip) {
|
|
t.Fatalf("Unexpected last IP from subpool. Expected: %s. Got: %v.", expected, ip)
|
|
}
|
|
rp := &net.IPNet{IP: net.IP{172, 28, 30, 97}, Mask: net.IPMask{255, 255, 0, 0}}
|
|
if err = a.ReleaseAddress(poolID, rp.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if ip, _, err = a.RequestAddress(poolID, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(rp, ip) {
|
|
t.Fatalf("Unexpected IP from subpool. Expected: %s. Got: %v.", rp, ip)
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool("rosso", "10.0.0.0/8", "10.0.0.0/16", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
poolID, _, _, err = a.RequestPool("rosso", "10.0.0.0/16", "10.0.0.0/24", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
expected = &net.IPNet{IP: net.IP{10, 0, 0, 255}, Mask: net.IPMask{255, 255, 0, 0}}
|
|
for err == nil {
|
|
var c *net.IPNet
|
|
if c, _, err = a.RequestAddress(poolID, nil, nil); err == nil {
|
|
ip = c
|
|
}
|
|
}
|
|
if err != ipamapi.ErrNoAvailableIPs {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(expected, ip) {
|
|
t.Fatalf("Unexpected last IP from subpool. Expected: %s. Got: %v.", expected, ip)
|
|
}
|
|
rp = &net.IPNet{IP: net.IP{10, 0, 0, 79}, Mask: net.IPMask{255, 255, 0, 0}}
|
|
if err = a.ReleaseAddress(poolID, rp.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if ip, _, err = a.RequestAddress(poolID, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(rp, ip) {
|
|
t.Fatalf("Unexpected IP from subpool. Expected: %s. Got: %v.", rp, ip)
|
|
}
|
|
}
|
|
|
|
func TestGetAddress(t *testing.T) {
|
|
input := []string{
|
|
/*"10.0.0.0/8", "10.0.0.0/9", "10.0.0.0/10",*/ "10.0.0.0/11", "10.0.0.0/12", "10.0.0.0/13", "10.0.0.0/14",
|
|
"10.0.0.0/15", "10.0.0.0/16", "10.0.0.0/17", "10.0.0.0/18", "10.0.0.0/19", "10.0.0.0/20", "10.0.0.0/21",
|
|
"10.0.0.0/22", "10.0.0.0/23", "10.0.0.0/24", "10.0.0.0/25", "10.0.0.0/26", "10.0.0.0/27", "10.0.0.0/28",
|
|
"10.0.0.0/29", "10.0.0.0/30", "10.0.0.0/31"}
|
|
|
|
for _, subnet := range input {
|
|
assertGetAddress(t, subnet)
|
|
}
|
|
}
|
|
|
|
func TestRequestSyntaxCheck(t *testing.T) {
|
|
var (
|
|
pool = "192.168.0.0/16"
|
|
subPool = "192.168.0.0/24"
|
|
addrSpace = "green"
|
|
)
|
|
|
|
a, _ := NewAllocator(nil, nil)
|
|
|
|
_, _, _, err := a.RequestPool("", pool, "", nil, false)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: empty address space")
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool("", pool, subPool, nil, false)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: empty address space")
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool(addrSpace, "", subPool, nil, false)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: subPool specified and no pool")
|
|
}
|
|
|
|
pid, _, _, err := a.RequestPool(addrSpace, pool, subPool, nil, false)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure: %v", err)
|
|
}
|
|
|
|
_, _, err = a.RequestAddress("", nil, nil)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: no pool id specified")
|
|
}
|
|
|
|
ip := net.ParseIP("172.17.0.23")
|
|
_, _, err = a.RequestAddress(pid, ip, nil)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: preferred IP from different subnet")
|
|
}
|
|
|
|
ip = net.ParseIP("192.168.0.50")
|
|
_, _, err = a.RequestAddress(pid, ip, nil)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure: %v", err)
|
|
}
|
|
|
|
err = a.ReleaseAddress("", ip)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: no pool id specified")
|
|
}
|
|
|
|
err = a.ReleaseAddress(pid, nil)
|
|
if err == nil {
|
|
t.Fatalf("Failed to detect wrong request: no pool id specified")
|
|
}
|
|
|
|
err = a.ReleaseAddress(pid, ip)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestRequest(t *testing.T) {
|
|
// Request N addresses from different size subnets, verifying last request
|
|
// returns expected address. Internal subnet host size is Allocator's default, 16
|
|
input := []struct {
|
|
subnet string
|
|
numReq int
|
|
lastIP string
|
|
}{
|
|
{"192.168.59.0/24", 254, "192.168.59.254"},
|
|
{"192.168.240.0/20", 255, "192.168.240.255"},
|
|
{"192.168.0.0/16", 255, "192.168.0.255"},
|
|
{"192.168.0.0/16", 256, "192.168.1.0"},
|
|
{"10.16.0.0/16", 255, "10.16.0.255"},
|
|
{"10.128.0.0/12", 255, "10.128.0.255"},
|
|
{"10.0.0.0/8", 256, "10.0.1.0"},
|
|
|
|
{"192.168.128.0/18", 4*256 - 1, "192.168.131.255"},
|
|
{"192.168.240.0/20", 16*256 - 2, "192.168.255.254"},
|
|
|
|
{"192.168.0.0/16", 256*256 - 2, "192.168.255.254"},
|
|
{"10.0.0.0/8", 2 * 256, "10.0.2.0"},
|
|
{"10.0.0.0/8", 5 * 256, "10.0.5.0"},
|
|
//{"10.0.0.0/8", 100 * 256 * 254, "10.99.255.254"},
|
|
}
|
|
|
|
for _, d := range input {
|
|
assertNRequests(t, d.subnet, d.numReq, d.lastIP)
|
|
}
|
|
}
|
|
|
|
func TestRelease(t *testing.T) {
|
|
var (
|
|
err error
|
|
subnet = "192.168.0.0/16"
|
|
)
|
|
|
|
a, pid := getAllocator(t, subnet)
|
|
bm := a.addresses[SubnetKey{"default", subnet, ""}]
|
|
|
|
// Allocate all addresses
|
|
for err != ipamapi.ErrNoAvailableIPs {
|
|
_, _, err = a.RequestAddress(pid, nil, nil)
|
|
}
|
|
|
|
toRelease := []struct {
|
|
address string
|
|
}{
|
|
{"192.168.0.1"},
|
|
{"192.168.0.2"},
|
|
{"192.168.0.3"},
|
|
{"192.168.0.4"},
|
|
{"192.168.0.5"},
|
|
{"192.168.0.6"},
|
|
{"192.168.0.7"},
|
|
{"192.168.0.8"},
|
|
{"192.168.0.9"},
|
|
{"192.168.0.10"},
|
|
{"192.168.0.30"},
|
|
{"192.168.0.31"},
|
|
{"192.168.1.32"},
|
|
|
|
{"192.168.0.254"},
|
|
{"192.168.1.1"},
|
|
{"192.168.1.2"},
|
|
|
|
{"192.168.1.3"},
|
|
|
|
{"192.168.255.253"},
|
|
{"192.168.255.254"},
|
|
}
|
|
|
|
// One by one, relase the address and request again. We should get the same IP
|
|
for i, inp := range toRelease {
|
|
ip0 := net.ParseIP(inp.address)
|
|
a.ReleaseAddress(pid, ip0)
|
|
if bm.Unselected() != 1 {
|
|
t.Fatalf("Failed to update free address count after release. Expected %d, Found: %d", i+1, bm.Unselected())
|
|
}
|
|
|
|
nw, _, err := a.RequestAddress(pid, nil, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to obtain the address: %s", err.Error())
|
|
}
|
|
ip := nw.IP
|
|
if !ip0.Equal(ip) {
|
|
t.Fatalf("Failed to obtain the same address. Expected: %s, Got: %s", ip0, ip)
|
|
}
|
|
}
|
|
}
|
|
|
|
func assertGetAddress(t *testing.T, subnet string) {
|
|
var (
|
|
err error
|
|
printTime = false
|
|
a = &Allocator{}
|
|
)
|
|
|
|
_, sub, _ := net.ParseCIDR(subnet)
|
|
ones, bits := sub.Mask.Size()
|
|
zeroes := bits - ones
|
|
numAddresses := 1 << uint(zeroes)
|
|
|
|
bm, err := bitseq.NewHandle("ipam_test", nil, "default/"+subnet, uint32(numAddresses))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
start := time.Now()
|
|
run := 0
|
|
for err != ipamapi.ErrNoAvailableIPs {
|
|
_, err = a.getAddress(sub, bm, nil, nil)
|
|
run++
|
|
}
|
|
if printTime {
|
|
fmt.Printf("\nTaken %v, to allocate all addresses on %s. (nemAddresses: %d. Runs: %d)", time.Since(start), subnet, numAddresses, run)
|
|
}
|
|
if bm.Unselected() != 0 {
|
|
t.Fatalf("Unexpected free count after reserving all addresses: %d", bm.Unselected())
|
|
}
|
|
/*
|
|
if bm.Head.Block != expectedMax || bm.Head.Count != numBlocks {
|
|
t.Fatalf("Failed to effectively reserve all addresses on %s. Expected (0x%x, %d) as first sequence. Found (0x%x,%d)",
|
|
subnet, expectedMax, numBlocks, bm.Head.Block, bm.Head.Count)
|
|
}
|
|
*/
|
|
}
|
|
|
|
func assertNRequests(t *testing.T, subnet string, numReq int, lastExpectedIP string) {
|
|
var (
|
|
err error
|
|
nw *net.IPNet
|
|
printTime = false
|
|
)
|
|
|
|
lastIP := net.ParseIP(lastExpectedIP)
|
|
a, pid := getAllocator(t, subnet)
|
|
|
|
i := 0
|
|
start := time.Now()
|
|
for ; i < numReq; i++ {
|
|
nw, _, err = a.RequestAddress(pid, nil, nil)
|
|
}
|
|
if printTime {
|
|
fmt.Printf("\nTaken %v, to allocate %d addresses on %s\n", time.Since(start), numReq, subnet)
|
|
}
|
|
|
|
if !lastIP.Equal(nw.IP) {
|
|
t.Fatalf("Wrong last IP. Expected %s. Got: %s (err: %v, ind: %d)", lastExpectedIP, nw.IP.String(), err, i)
|
|
}
|
|
}
|
|
|
|
func benchmarkRequest(subnet string) {
|
|
var err error
|
|
|
|
a, _ := NewAllocator(nil, nil)
|
|
pid, _, _, _ := a.RequestPool("default", subnet, "", nil, false)
|
|
|
|
for err != ipamapi.ErrNoAvailableIPs {
|
|
_, _, err = a.RequestAddress(pid, nil, nil)
|
|
}
|
|
}
|
|
|
|
func benchMarkRequest(subnet string, b *testing.B) {
|
|
for n := 0; n < b.N; n++ {
|
|
benchmarkRequest(subnet)
|
|
}
|
|
}
|
|
|
|
func BenchmarkRequest_24(b *testing.B) {
|
|
benchmarkRequest("10.0.0.0/24")
|
|
}
|
|
|
|
func BenchmarkRequest_16(b *testing.B) {
|
|
benchmarkRequest("10.0.0.0/16")
|
|
}
|
|
|
|
func BenchmarkRequest_8(b *testing.B) {
|
|
benchmarkRequest("10.0.0.0/8")
|
|
}
|