1563 lines
40 KiB
Go
1563 lines
40 KiB
Go
package ipam
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"math/rand"
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"net"
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"strconv"
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"sync"
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"testing"
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"time"
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"github.com/docker/libkv/store"
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"github.com/docker/libkv/store/boltdb"
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"github.com/docker/libnetwork/bitseq"
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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/ipamutils"
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_ "github.com/docker/libnetwork/testutils"
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"github.com/docker/libnetwork/types"
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"github.com/stretchr/testify/assert"
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)
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const (
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defaultPrefix = "/tmp/libnetwork/test/ipam"
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)
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func init() {
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boltdb.Register()
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}
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// OptionBoltdbWithRandomDBFile function returns a random dir for local store backend
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func randomLocalStore(needStore bool) (datastore.DataStore, error) {
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if !needStore {
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return nil, nil
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}
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tmp, err := ioutil.TempFile("", "libnetwork-")
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if err != nil {
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return nil, fmt.Errorf("Error creating temp file: %v", err)
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}
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if err := tmp.Close(); err != nil {
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return nil, fmt.Errorf("Error closing temp file: %v", err)
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}
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return datastore.NewDataStore(datastore.LocalScope, &datastore.ScopeCfg{
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Client: datastore.ScopeClientCfg{
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Provider: "boltdb",
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Address: defaultPrefix + tmp.Name(),
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Config: &store.Config{
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Bucket: "libnetwork",
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ConnectionTimeout: 3 * time.Second,
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},
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},
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})
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}
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func getAllocator(store bool) (*Allocator, error) {
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ipamutils.InitNetworks(nil)
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ds, err := randomLocalStore(store)
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if err != nil {
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return nil, err
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}
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return NewAllocator(ds, nil)
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}
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func TestInt2IP2IntConversion(t *testing.T) {
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for i := uint64(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 := ipToUint64(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.Fatal("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.Fatal("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.Fatal("Failed to detect IPv6 version")
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}
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if v6 != getAddressVersion(net.ParseIP("2001:db8::76:51")) {
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t.Fatal("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.Fatal("Unexpected Range")
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}
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}
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func TestSubnetsMarshal(t *testing.T) {
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for _, store := range []bool{false, true} {
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a, err := getAllocator(store)
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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(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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cfg, err := a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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ba := cfg.Value()
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if err := cfg.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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}
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func TestAddSubnets(t *testing.T) {
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for _, store := range []bool{false, true} {
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a, err := getAllocator(store)
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if err != nil {
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t.Fatal(err)
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}
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a.addrSpaces["abc"] = a.addrSpaces[localAddressSpace]
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pid0, _, _, err := a.RequestPool(localAddressSpace, "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatal("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.Fatal("returned same pool id for same subnets in different namespaces")
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}
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_, _, _, err = a.RequestPool("abc", "10.0.0.0/8", "", nil, false)
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if err == nil {
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t.Fatalf("Expected failure requesting existing subnet")
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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.Fatal("Expected failure on adding overlapping base subnet")
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}
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_, _, _, 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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_, _, _, 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("Expected failure on adding overlapping sub pool")
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}
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_, _, _, err = a.RequestPool(localAddressSpace, "10.20.2.0/24", "", nil, false)
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if err == nil {
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t.Fatal("Failed to detect overlapping subnets")
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}
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_, _, _, err = a.RequestPool(localAddressSpace, "10.128.0.0/9", "", nil, false)
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if err == nil {
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t.Fatal("Failed to detect overlapping subnets")
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}
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_, _, _, err = a.RequestPool(localAddressSpace, "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(localAddressSpace, "1003:1:2:3::/64", "", nil, false)
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if err == nil {
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t.Fatal("Failed to detect overlapping v6 subnet")
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}
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}
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}
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// TestDoublePoolRelease tests that releasing a pool which has already
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// been released raises an error.
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func TestDoublePoolRelease(t *testing.T) {
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for _, store := range []bool{false, true} {
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a, err := getAllocator(store)
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assert.NoError(t, err)
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pid0, _, _, err := a.RequestPool(localAddressSpace, "10.0.0.0/8", "", nil, false)
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assert.NoError(t, err)
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err = a.ReleasePool(pid0)
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assert.NoError(t, err)
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err = a.ReleasePool(pid0)
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assert.Error(t, err)
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}
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}
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func TestAddReleasePoolID(t *testing.T) {
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for _, store := range []bool{false, true} {
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a, err := getAllocator(store)
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assert.NoError(t, err)
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var k0, k1 SubnetKey
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aSpace, err := a.getAddrSpace(localAddressSpace)
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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(localAddressSpace, "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatal("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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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets := aSpace.subnets
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if subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, subnets[k0].RefCount)
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}
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pid1, _, _, err := a.RequestPool(localAddressSpace, "10.0.0.0/8", "10.0.0.0/16", nil, false)
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if err != nil {
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t.Fatal("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 pid0 == pid1 {
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t.Fatalf("Incorrect poolIDs returned %s, %s", pid0, pid1)
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}
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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets = aSpace.subnets
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if subnets[k1].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k1, subnets[k1].RefCount)
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}
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_, _, _, err = a.RequestPool(localAddressSpace, "10.0.0.0/8", "10.0.0.0/16", nil, false)
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if err == nil {
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t.Fatal("Expected failure in adding sub pool")
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}
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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets = aSpace.subnets
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if subnets[k0].RefCount != 2 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, 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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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets = aSpace.subnets
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if subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, 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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pid00, _, _, err := a.RequestPool(localAddressSpace, "10.0.0.0/8", "", nil, false)
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if err != nil {
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t.Fatal("Unexpected failure in adding pool")
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}
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if pid00 != pid0 {
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t.Fatal("main pool should still exist")
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}
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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets = aSpace.subnets
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if subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, 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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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
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t.Fatal(err)
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}
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subnets = aSpace.subnets
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if bp, ok := 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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|
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_, _, _, err = a.RequestPool(localAddressSpace, "10.0.0.0/8", "", nil, false)
|
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if err != nil {
|
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t.Fatal("Unexpected failure in adding pool")
|
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}
|
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|
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aSpace, err = a.getAddrSpace(localAddressSpace)
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if err != nil {
|
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t.Fatal(err)
|
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}
|
|
|
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subnets = aSpace.subnets
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if subnets[k0].RefCount != 1 {
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t.Fatalf("Unexpected ref count for %s: %d", k0, subnets[k0].RefCount)
|
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}
|
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}
|
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}
|
|
|
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func TestPredefinedPool(t *testing.T) {
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for _, store := range []bool{false, true} {
|
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a, err := getAllocator(store)
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assert.NoError(t, err)
|
|
|
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if _, err := a.getPredefinedPool("blue", false); err == nil {
|
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t.Fatal("Expected failure for non default addr space")
|
|
}
|
|
|
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pid, nw, _, err := a.RequestPool(localAddressSpace, "", "", nil, false)
|
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if err != nil {
|
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t.Fatal(err)
|
|
}
|
|
|
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nw2, err := a.getPredefinedPool(localAddressSpace, false)
|
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if err != nil {
|
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t.Fatal(err)
|
|
}
|
|
if types.CompareIPNet(nw, nw2) {
|
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t.Fatalf("Unexpected default network returned: %s = %s", nw2, nw)
|
|
}
|
|
|
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if err := a.ReleasePool(pid); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRemoveSubnet(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
a.addrSpaces["splane"] = &addrSpace{
|
|
id: dsConfigKey + "/" + "splane",
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
|
|
input := []struct {
|
|
addrSpace string
|
|
subnet string
|
|
v6 bool
|
|
}{
|
|
{localAddressSpace, "192.168.0.0/16", false},
|
|
{localAddressSpace, "172.17.0.0/16", false},
|
|
{localAddressSpace, "10.0.0.0/8", false},
|
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{localAddressSpace, "2001:db8:1:2:3:4:ffff::/112", false},
|
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{"splane", "172.17.0.0/16", false},
|
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{"splane", "10.0.0.0/8", false},
|
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{"splane", "2001:db8:1:2:3:4:5::/112", true},
|
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{"splane", "2001:db8:1:2:3:4:ffff::/112", true},
|
|
}
|
|
|
|
poolIDs := make([]string, len(input))
|
|
|
|
for ind, i := range input {
|
|
if poolIDs[ind], _, _, err = a.RequestPool(i.addrSpace, i.subnet, "", nil, i.v6); err != nil {
|
|
t.Fatalf("Failed to apply input. Can't proceed: %s", err.Error())
|
|
}
|
|
}
|
|
|
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for ind, id := range poolIDs {
|
|
if err := a.ReleasePool(id); err != nil {
|
|
t.Fatalf("Failed to release poolID %s (%d)", id, ind)
|
|
}
|
|
}
|
|
}
|
|
}
|
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|
|
func TestGetSameAddress(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
a.addrSpaces["giallo"] = &addrSpace{
|
|
id: dsConfigKey + "/" + "giallo",
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
|
|
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 TestPoolAllocationReuse(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
// First get all pools until they are exhausted to
|
|
pList := []string{}
|
|
pool, _, _, err := a.RequestPool(localAddressSpace, "", "", nil, false)
|
|
for err == nil {
|
|
pList = append(pList, pool)
|
|
pool, _, _, err = a.RequestPool(localAddressSpace, "", "", nil, false)
|
|
}
|
|
nPools := len(pList)
|
|
for _, pool := range pList {
|
|
if err := a.ReleasePool(pool); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Now try to allocate then free nPool pools sequentially.
|
|
// Verify that we don't see any repeat networks even though
|
|
// we have freed them.
|
|
seen := map[string]bool{}
|
|
for i := 0; i < nPools; i++ {
|
|
pool, nw, _, err := a.RequestPool(localAddressSpace, "", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if _, ok := seen[nw.String()]; ok {
|
|
t.Fatalf("Network %s was reused before exhausing the pool list", nw.String())
|
|
}
|
|
seen[nw.String()] = true
|
|
if err := a.ReleasePool(pool); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetAddressSubPoolEqualPool(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
// Requesting a subpool of same size of the master pool should not cause any problem on ip allocation
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, "172.18.0.0/16", "172.18.0.0/16", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
_, _, err = a.RequestAddress(pid, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRequestReleaseAddressFromSubPool(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
a.addrSpaces["rosso"] = &addrSpace{
|
|
id: dsConfigKey + "/" + "rosso",
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
// Request any addresses from subpool after explicit address request
|
|
unoExp, _ := types.ParseCIDR("10.2.2.0/16")
|
|
dueExp, _ := types.ParseCIDR("10.2.2.2/16")
|
|
treExp, _ := types.ParseCIDR("10.2.2.1/16")
|
|
|
|
if poolID, _, _, err = a.RequestPool("rosso", "10.2.0.0/16", "10.2.2.0/24", nil, false); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
tre, _, err := a.RequestAddress(poolID, treExp.IP, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(tre, treExp) {
|
|
t.Fatalf("Unexpected address: %v", tre)
|
|
}
|
|
|
|
uno, _, err := a.RequestAddress(poolID, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(uno, unoExp) {
|
|
t.Fatalf("Unexpected address: %v", uno)
|
|
}
|
|
|
|
due, _, err := a.RequestAddress(poolID, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(due, dueExp) {
|
|
t.Fatalf("Unexpected address: %v", due)
|
|
}
|
|
|
|
if err = a.ReleaseAddress(poolID, uno.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
uno, _, err = a.RequestAddress(poolID, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(uno, unoExp) {
|
|
t.Fatalf("Unexpected address: %v", uno)
|
|
}
|
|
|
|
if err = a.ReleaseAddress(poolID, tre.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
tre, _, err = a.RequestAddress(poolID, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(tre, treExp) {
|
|
t.Fatalf("Unexpected address: %v", tre)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestSerializeRequestReleaseAddressFromSubPool(t *testing.T) {
|
|
opts := map[string]string{
|
|
ipamapi.AllocSerialPrefix: "true"}
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
a.addrSpaces["rosso"] = &addrSpace{
|
|
id: dsConfigKey + "/" + "rosso",
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
|
|
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, opts); 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, opts); 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, opts); 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, opts); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(rp, ip) {
|
|
t.Fatalf("Unexpected IP from subpool. Expected: %s. Got: %v.", rp, ip)
|
|
}
|
|
|
|
// Request any addresses from subpool after explicit address request
|
|
unoExp, _ := types.ParseCIDR("10.2.2.0/16")
|
|
dueExp, _ := types.ParseCIDR("10.2.2.2/16")
|
|
treExp, _ := types.ParseCIDR("10.2.2.1/16")
|
|
quaExp, _ := types.ParseCIDR("10.2.2.3/16")
|
|
fivExp, _ := types.ParseCIDR("10.2.2.4/16")
|
|
if poolID, _, _, err = a.RequestPool("rosso", "10.2.0.0/16", "10.2.2.0/24", nil, false); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
tre, _, err := a.RequestAddress(poolID, treExp.IP, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(tre, treExp) {
|
|
t.Fatalf("Unexpected address: %v", tre)
|
|
}
|
|
|
|
uno, _, err := a.RequestAddress(poolID, nil, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(uno, unoExp) {
|
|
t.Fatalf("Unexpected address: %v", uno)
|
|
}
|
|
|
|
due, _, err := a.RequestAddress(poolID, nil, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(due, dueExp) {
|
|
t.Fatalf("Unexpected address: %v", due)
|
|
}
|
|
|
|
if err = a.ReleaseAddress(poolID, uno.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
uno, _, err = a.RequestAddress(poolID, nil, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(uno, quaExp) {
|
|
t.Fatalf("Unexpected address: %v", uno)
|
|
}
|
|
|
|
if err = a.ReleaseAddress(poolID, tre.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
tre, _, err = a.RequestAddress(poolID, nil, opts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !types.CompareIPNet(tre, fivExp) {
|
|
t.Fatalf("Unexpected address: %v", tre)
|
|
}
|
|
}
|
|
}
|
|
|
|
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"
|
|
as = "green"
|
|
)
|
|
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
a.addrSpaces[as] = &addrSpace{
|
|
id: dsConfigKey + "/" + as,
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool("", pool, "", nil, false)
|
|
if err == nil {
|
|
t.Fatal("Failed to detect wrong request: empty address space")
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool("", pool, subPool, nil, false)
|
|
if err == nil {
|
|
t.Fatal("Failed to detect wrong request: empty address space")
|
|
}
|
|
|
|
_, _, _, err = a.RequestPool(as, "", subPool, nil, false)
|
|
if err == nil {
|
|
t.Fatal("Failed to detect wrong request: subPool specified and no pool")
|
|
}
|
|
|
|
pid, _, _, err := a.RequestPool(as, pool, subPool, nil, false)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure: %v", err)
|
|
}
|
|
|
|
_, _, err = a.RequestAddress("", nil, nil)
|
|
if err == nil {
|
|
t.Fatal("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.Fatal("Failed to detect wrong request: requested 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.Fatal("Failed to detect wrong request: no pool id specified")
|
|
}
|
|
|
|
err = a.ReleaseAddress(pid, nil)
|
|
if err == nil {
|
|
t.Fatal("Failed to detect wrong request: no pool id specified")
|
|
}
|
|
|
|
err = a.ReleaseAddress(pid, ip)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure: %v: %s, %s", err, pid, ip)
|
|
}
|
|
}
|
|
}
|
|
|
|
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)
|
|
}
|
|
}
|
|
|
|
// TestOverlappingRequests tests that overlapping subnets cannot be allocated.
|
|
// Requests for subnets which are supersets or subsets of existing allocations,
|
|
// or which overlap at the beginning or end, should not be permitted.
|
|
func TestOverlappingRequests(t *testing.T) {
|
|
input := []struct {
|
|
environment []string
|
|
subnet string
|
|
ok bool
|
|
}{
|
|
// IPv4
|
|
// Previously allocated network does not overlap with request
|
|
{[]string{"10.0.0.0/8"}, "11.0.0.0/8", true},
|
|
{[]string{"74.0.0.0/7"}, "9.111.99.72/30", true},
|
|
{[]string{"110.192.0.0/10"}, "16.0.0.0/10", true},
|
|
|
|
// Previously allocated network entirely contains request
|
|
{[]string{"10.0.0.0/8"}, "10.0.0.0/8", false}, // exact overlap
|
|
{[]string{"0.0.0.0/1"}, "16.182.0.0/15", false},
|
|
{[]string{"16.0.0.0/4"}, "17.11.66.0/23", false},
|
|
|
|
// Previously allocated network overlaps beginning of request
|
|
{[]string{"0.0.0.0/1"}, "0.0.0.0/0", false},
|
|
{[]string{"64.0.0.0/6"}, "64.0.0.0/3", false},
|
|
{[]string{"112.0.0.0/6"}, "112.0.0.0/4", false},
|
|
|
|
// Previously allocated network overlaps end of request
|
|
{[]string{"96.0.0.0/3"}, "0.0.0.0/1", false},
|
|
{[]string{"192.0.0.0/2"}, "128.0.0.0/1", false},
|
|
{[]string{"95.0.0.0/8"}, "92.0.0.0/6", false},
|
|
|
|
// Previously allocated network entirely contained within request
|
|
{[]string{"10.0.0.0/8"}, "10.0.0.0/6", false}, // non-canonical
|
|
{[]string{"10.0.0.0/8"}, "8.0.0.0/6", false}, // canonical
|
|
{[]string{"25.173.144.0/20"}, "0.0.0.0/0", false},
|
|
|
|
// IPv6
|
|
// Previously allocated network entirely contains request
|
|
{[]string{"::/0"}, "f656:3484:c878:a05:e540:a6ed:4d70:3740/123", false},
|
|
{[]string{"8000::/1"}, "8fe8:e7c4:5779::/49", false},
|
|
{[]string{"f000::/4"}, "ffc7:6000::/19", false},
|
|
|
|
// Previously allocated network overlaps beginning of request
|
|
{[]string{"::/2"}, "::/0", false},
|
|
{[]string{"::/3"}, "::/1", false},
|
|
{[]string{"::/6"}, "::/5", false},
|
|
|
|
// Previously allocated network overlaps end of request
|
|
{[]string{"c000::/2"}, "8000::/1", false},
|
|
{[]string{"7c00::/6"}, "::/1", false},
|
|
{[]string{"cf80::/9"}, "c000::/4", false},
|
|
|
|
// Previously allocated network entirely contained within request
|
|
{[]string{"ff77:93f8::/29"}, "::/0", false},
|
|
{[]string{"9287:2e20:5134:fab6:9061:a0c6:bfe3:9400/119"}, "8000::/1", false},
|
|
{[]string{"3ea1:bfa9:8691:d1c6:8c46:519b:db6d:e700/120"}, "3000::/4", false},
|
|
}
|
|
|
|
for _, store := range []bool{false, true} {
|
|
for _, tc := range input {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
// Set up some existing allocations. This should always succeed.
|
|
for _, env := range tc.environment {
|
|
_, _, _, err = a.RequestPool(localAddressSpace, env, "", nil, false)
|
|
assert.NoError(t, err)
|
|
}
|
|
|
|
// Make the test allocation.
|
|
_, _, _, err = a.RequestPool(localAddressSpace, tc.subnet, "", nil, false)
|
|
if tc.ok {
|
|
assert.NoError(t, err)
|
|
} else {
|
|
assert.Error(t, err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRelease(t *testing.T) {
|
|
var (
|
|
subnet = "192.168.0.0/23"
|
|
)
|
|
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, subnet, "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
bm := a.addresses[SubnetKey{localAddressSpace, 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"},
|
|
|
|
{"192.168.1.253"},
|
|
{"192.168.1.254"},
|
|
}
|
|
|
|
// 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)
|
|
bm = a.addresses[SubnetKey{localAddressSpace, subnet, ""}]
|
|
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, uint64(numAddresses))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
start := time.Now()
|
|
run := 0
|
|
for err != ipamapi.ErrNoAvailableIPs {
|
|
_, err = a.getAddress(sub, bm, nil, nil, false)
|
|
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 (
|
|
nw *net.IPNet
|
|
printTime = false
|
|
)
|
|
|
|
lastIP := net.ParseIP(lastExpectedIP)
|
|
for _, store := range []bool{false, true} {
|
|
a, err := getAllocator(store)
|
|
assert.NoError(t, err)
|
|
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, subnet, "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
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(b *testing.B, a *Allocator, subnet string) {
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, subnet, "", nil, false)
|
|
for err != ipamapi.ErrNoAvailableIPs {
|
|
_, _, err = a.RequestAddress(pid, nil, nil)
|
|
}
|
|
}
|
|
|
|
func benchMarkRequest(subnet string, b *testing.B) {
|
|
a, _ := getAllocator(true)
|
|
for n := 0; n < b.N; n++ {
|
|
benchmarkRequest(b, a, subnet)
|
|
}
|
|
}
|
|
|
|
func BenchmarkRequest(b *testing.B) {
|
|
|
|
subnets := []string{
|
|
"10.0.0.0/24",
|
|
"10.0.0.0/16",
|
|
"10.0.0.0/8",
|
|
}
|
|
|
|
for _, subnet := range subnets {
|
|
name := fmt.Sprintf("%vSubnet", subnet)
|
|
b.Run(name, func(b *testing.B) {
|
|
a, _ := getAllocator(true)
|
|
benchmarkRequest(b, a, subnet)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAllocateRandomDeallocate(t *testing.T) {
|
|
for _, store := range []bool{false, true} {
|
|
testAllocateRandomDeallocate(t, "172.25.0.0/16", "", 384, store)
|
|
testAllocateRandomDeallocate(t, "172.25.0.0/16", "172.25.252.0/22", 384, store)
|
|
}
|
|
}
|
|
|
|
func testAllocateRandomDeallocate(t *testing.T, pool, subPool string, num int, store bool) {
|
|
ds, err := randomLocalStore(store)
|
|
assert.NoError(t, err)
|
|
|
|
a, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, pool, subPool, nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Allocate num ip addresses
|
|
indices := make(map[int]*net.IPNet, num)
|
|
allocated := make(map[string]bool, num)
|
|
for i := 0; i < num; i++ {
|
|
ip, _, err := a.RequestAddress(pid, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
ips := ip.String()
|
|
if _, ok := allocated[ips]; ok {
|
|
t.Fatalf("Address %s is already allocated", ips)
|
|
}
|
|
allocated[ips] = true
|
|
indices[i] = ip
|
|
}
|
|
if len(indices) != len(allocated) || len(indices) != num {
|
|
t.Fatalf("Unexpected number of allocated addresses: (%d,%d).", len(indices), len(allocated))
|
|
}
|
|
|
|
seed := time.Now().Unix()
|
|
rand.Seed(seed)
|
|
|
|
// Deallocate half of the allocated addresses following a random pattern
|
|
pattern := rand.Perm(num)
|
|
for i := 0; i < num/2; i++ {
|
|
idx := pattern[i]
|
|
ip := indices[idx]
|
|
err := a.ReleaseAddress(pid, ip.IP)
|
|
if err != nil {
|
|
t.Fatalf("Unexpected failure on deallocation of %s: %v.\nSeed: %d.", ip, err, seed)
|
|
}
|
|
delete(indices, idx)
|
|
delete(allocated, ip.String())
|
|
}
|
|
|
|
// Request a quarter of addresses
|
|
for i := 0; i < num/2; i++ {
|
|
ip, _, err := a.RequestAddress(pid, nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
ips := ip.String()
|
|
if _, ok := allocated[ips]; ok {
|
|
t.Fatalf("\nAddress %s is already allocated.\nSeed: %d.", ips, seed)
|
|
}
|
|
allocated[ips] = true
|
|
}
|
|
if len(allocated) != num {
|
|
t.Fatalf("Unexpected number of allocated addresses: %d.\nSeed: %d.", len(allocated), seed)
|
|
}
|
|
}
|
|
|
|
func TestRetrieveFromStore(t *testing.T) {
|
|
num := 200
|
|
ds, err := randomLocalStore(true)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
a, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
pid, _, _, err := a.RequestPool(localAddressSpace, "172.25.0.0/16", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for i := 0; i < num; i++ {
|
|
if _, _, err := a.RequestAddress(pid, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Restore
|
|
a1, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
a1.refresh(localAddressSpace)
|
|
db := a.DumpDatabase()
|
|
db1 := a1.DumpDatabase()
|
|
if db != db1 {
|
|
t.Fatalf("Unexpected db change.\nExpected:%s\nGot:%s", db, db1)
|
|
}
|
|
checkDBEquality(a, a1, t)
|
|
pid, _, _, err = a1.RequestPool(localAddressSpace, "172.25.0.0/16", "172.25.1.0/24", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for i := 0; i < num/2; i++ {
|
|
if _, _, err := a1.RequestAddress(pid, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Restore
|
|
a2, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
a2.refresh(localAddressSpace)
|
|
checkDBEquality(a1, a2, t)
|
|
pid, _, _, err = a2.RequestPool(localAddressSpace, "172.25.0.0/16", "172.25.2.0/24", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for i := 0; i < num/2; i++ {
|
|
if _, _, err := a2.RequestAddress(pid, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Restore
|
|
a3, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
a3.refresh(localAddressSpace)
|
|
checkDBEquality(a2, a3, t)
|
|
pid, _, _, err = a3.RequestPool(localAddressSpace, "172.26.0.0/16", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for i := 0; i < num/2; i++ {
|
|
if _, _, err := a3.RequestAddress(pid, nil, nil); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Restore
|
|
a4, err := NewAllocator(ds, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
a4.refresh(localAddressSpace)
|
|
checkDBEquality(a3, a4, t)
|
|
}
|
|
|
|
func checkDBEquality(a1, a2 *Allocator, t *testing.T) {
|
|
for k, cnf1 := range a1.addrSpaces[localAddressSpace].subnets {
|
|
cnf2 := a2.addrSpaces[localAddressSpace].subnets[k]
|
|
if cnf1.String() != cnf2.String() {
|
|
t.Fatalf("%s\n%s", cnf1, cnf2)
|
|
}
|
|
if cnf1.Range == nil {
|
|
a2.retrieveBitmask(k, cnf1.Pool)
|
|
}
|
|
}
|
|
|
|
for k, bm1 := range a1.addresses {
|
|
bm2 := a2.addresses[k]
|
|
if bm1.String() != bm2.String() {
|
|
t.Fatalf("%s\n%s", bm1, bm2)
|
|
}
|
|
}
|
|
}
|
|
|
|
const (
|
|
numInstances = 5
|
|
first = 0
|
|
last = numInstances - 1
|
|
)
|
|
|
|
var (
|
|
allocator *Allocator
|
|
start = make(chan struct{})
|
|
done = make(chan chan struct{}, numInstances-1)
|
|
pools = make([]*net.IPNet, numInstances)
|
|
)
|
|
|
|
func runParallelTests(t *testing.T, instance int) {
|
|
var err error
|
|
|
|
t.Parallel()
|
|
|
|
pTest := flag.Lookup("test.parallel")
|
|
if pTest == nil {
|
|
t.Skip("Skipped because test.parallel flag not set;")
|
|
}
|
|
numParallel, err := strconv.Atoi(pTest.Value.String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if numParallel < numInstances {
|
|
t.Skip("Skipped because t.parallel was less than ", numInstances)
|
|
}
|
|
|
|
// The first instance creates the allocator, gives the start
|
|
// and finally checks the pools each instance was assigned
|
|
if instance == first {
|
|
allocator, err = getAllocator(true)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
close(start)
|
|
}
|
|
|
|
if instance != first {
|
|
select {
|
|
case <-start:
|
|
}
|
|
|
|
instDone := make(chan struct{})
|
|
done <- instDone
|
|
defer close(instDone)
|
|
|
|
if instance == last {
|
|
defer close(done)
|
|
}
|
|
}
|
|
|
|
_, pools[instance], _, err = allocator.RequestPool(localAddressSpace, "", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if instance == first {
|
|
for instDone := range done {
|
|
select {
|
|
case <-instDone:
|
|
}
|
|
}
|
|
// Now check each instance got a different pool
|
|
for i := 0; i < numInstances; i++ {
|
|
for j := i + 1; j < numInstances; j++ {
|
|
if types.CompareIPNet(pools[i], pools[j]) {
|
|
t.Fatalf("Instance %d and %d were given the same predefined pool: %v", i, j, pools)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRequestReleaseAddressDuplicate(t *testing.T) {
|
|
a, err := getAllocator(false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
type IP struct {
|
|
ip *net.IPNet
|
|
ref int
|
|
}
|
|
ips := []IP{}
|
|
allocatedIPs := []*net.IPNet{}
|
|
a.addrSpaces["rosso"] = &addrSpace{
|
|
id: dsConfigKey + "/" + "rosso",
|
|
ds: a.addrSpaces[localAddressSpace].ds,
|
|
alloc: a.addrSpaces[localAddressSpace].alloc,
|
|
scope: a.addrSpaces[localAddressSpace].scope,
|
|
subnets: map[SubnetKey]*PoolData{},
|
|
}
|
|
var wg sync.WaitGroup
|
|
opts := map[string]string{
|
|
ipamapi.AllocSerialPrefix: "true",
|
|
}
|
|
var l sync.Mutex
|
|
|
|
poolID, _, _, err := a.RequestPool("rosso", "198.168.0.0/23", "", nil, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for err == nil {
|
|
var c *net.IPNet
|
|
if c, _, err = a.RequestAddress(poolID, nil, opts); err == nil {
|
|
l.Lock()
|
|
ips = append(ips, IP{c, 1})
|
|
l.Unlock()
|
|
allocatedIPs = append(allocatedIPs, c)
|
|
if len(allocatedIPs) > 500 {
|
|
i := rand.Intn(len(allocatedIPs) - 1)
|
|
wg.Add(1)
|
|
go func(ip *net.IPNet) {
|
|
if err = a.ReleaseAddress(poolID, ip.IP); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
l.Lock()
|
|
ips = append(ips, IP{ip, -1})
|
|
l.Unlock()
|
|
wg.Done()
|
|
}(allocatedIPs[i])
|
|
allocatedIPs = append(allocatedIPs[:i], allocatedIPs[i+1:]...)
|
|
}
|
|
}
|
|
}
|
|
wg.Wait()
|
|
refMap := make(map[string]int)
|
|
for _, ip := range ips {
|
|
refMap[ip.ip.String()] = refMap[ip.ip.String()] + ip.ref
|
|
if refMap[ip.ip.String()] < 0 {
|
|
t.Fatalf("IP %s was previously released", ip.ip.String())
|
|
}
|
|
if refMap[ip.ip.String()] > 1 {
|
|
t.Fatalf("IP %s was previously allocated", ip.ip.String())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParallelPredefinedRequest1(t *testing.T) {
|
|
runParallelTests(t, 0)
|
|
}
|
|
|
|
func TestParallelPredefinedRequest2(t *testing.T) {
|
|
runParallelTests(t, 1)
|
|
}
|
|
|
|
func TestParallelPredefinedRequest3(t *testing.T) {
|
|
runParallelTests(t, 2)
|
|
}
|
|
|
|
func TestParallelPredefinedRequest4(t *testing.T) {
|
|
runParallelTests(t, 3)
|
|
}
|
|
|
|
func TestParallelPredefinedRequest5(t *testing.T) {
|
|
runParallelTests(t, 4)
|
|
}
|