9187b343e1
Prepatory work fpr removing cloud provider dependency from node controller running in Kube Controller Manager. Splitting the node controller into its two major pieces life-cycle and CIDR/IP management. Both pieces currently need the the cloud system to do their work. Removing lifecycles dependency on cloud will be fixed ina followup PR. Moved node scheduler code to live with node lifecycle controller. Got the IPAM/Lifecycle split completed. Still need to rename pieces. Made changes to the utils and tests so they would be in the appropriate package. Moved the node based ipam code to nodeipam. Made the relevant tests pass. Moved common node controller util code to nodeutil. Removed unneeded pod informer sync from node ipam controller. Fixed linter issues. Factored in feedback from @gmarek. Factored in feedback from @mtaufen. Undoing unneeded change.
734 lines
19 KiB
Go
734 lines
19 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package cidrset
|
|
|
|
import (
|
|
"math/big"
|
|
"net"
|
|
"reflect"
|
|
"testing"
|
|
|
|
"github.com/golang/glog"
|
|
)
|
|
|
|
func TestCIDRSetFullyAllocated(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
subNetMaskSize int
|
|
expectedCIDR string
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.123.234.0/30",
|
|
subNetMaskSize: 30,
|
|
expectedCIDR: "127.123.234.0/30",
|
|
description: "Fully allocated CIDR with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef:1234::/30",
|
|
subNetMaskSize: 30,
|
|
expectedCIDR: "beef:1234::/30",
|
|
description: "Fully allocated CIDR with IPv6",
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, _ := net.ParseCIDR(tc.clusterCIDRStr)
|
|
a, err := NewCIDRSet(clusterCIDR, tc.subNetMaskSize)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
p, err := a.AllocateNext()
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
if p.String() != tc.expectedCIDR {
|
|
t.Fatalf("unexpected allocated cidr: %v, expecting %v for %v",
|
|
p.String(), tc.expectedCIDR, tc.description)
|
|
}
|
|
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
|
|
a.Release(p)
|
|
|
|
p, err = a.AllocateNext()
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
if p.String() != tc.expectedCIDR {
|
|
t.Fatalf("unexpected allocated cidr: %v, expecting %v for %v",
|
|
p.String(), tc.expectedCIDR, tc.description)
|
|
}
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestIndexToCIDRBlock(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
subnetMaskSize int
|
|
index int
|
|
CIDRBlock string
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.123.3.0/16",
|
|
subnetMaskSize: 24,
|
|
index: 0,
|
|
CIDRBlock: "127.123.0.0/24",
|
|
description: "1st IP address indexed with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.123.0.0/16",
|
|
subnetMaskSize: 24,
|
|
index: 15,
|
|
CIDRBlock: "127.123.15.0/24",
|
|
description: "16th IP address indexed with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "192.168.5.219/28",
|
|
subnetMaskSize: 32,
|
|
index: 5,
|
|
CIDRBlock: "192.168.5.213/32",
|
|
description: "5th IP address indexed with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:3::/48",
|
|
subnetMaskSize: 64,
|
|
index: 0,
|
|
CIDRBlock: "2001:db8:1234::/64",
|
|
description: "1st IP address indexed with IPv6 /64",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234::/48",
|
|
subnetMaskSize: 64,
|
|
index: 15,
|
|
CIDRBlock: "2001:db8:1234:f::/64",
|
|
description: "16th IP address indexed with IPv6 /64",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:85a3::8a2e:0370:7334/50",
|
|
subnetMaskSize: 63,
|
|
index: 6425,
|
|
CIDRBlock: "2001:db8:85a3:3232::/63",
|
|
description: "6426th IP address indexed with IPv6 /63",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8::/32",
|
|
subnetMaskSize: 48,
|
|
index: 0,
|
|
CIDRBlock: "2001:db8::/48",
|
|
description: "1st IP address indexed with IPv6 /48",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8::/32",
|
|
subnetMaskSize: 48,
|
|
index: 15,
|
|
CIDRBlock: "2001:db8:f::/48",
|
|
description: "16th IP address indexed with IPv6 /48",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:85a3::8a2e:0370:7334/32",
|
|
subnetMaskSize: 48,
|
|
index: 6425,
|
|
CIDRBlock: "2001:db8:1919::/48",
|
|
description: "6426th IP address indexed with IPv6 /48",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:ff00::/56",
|
|
subnetMaskSize: 72,
|
|
index: 0,
|
|
CIDRBlock: "2001:db8:1234:ff00::/72",
|
|
description: "1st IP address indexed with IPv6 /72",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:ff00::/56",
|
|
subnetMaskSize: 72,
|
|
index: 15,
|
|
CIDRBlock: "2001:db8:1234:ff00:f00::/72",
|
|
description: "16th IP address indexed with IPv6 /72",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:ff00::0370:7334/56",
|
|
subnetMaskSize: 72,
|
|
index: 6425,
|
|
CIDRBlock: "2001:db8:1234:ff19:1900::/72",
|
|
description: "6426th IP address indexed with IPv6 /72",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:0:1234::/80",
|
|
subnetMaskSize: 96,
|
|
index: 0,
|
|
CIDRBlock: "2001:db8:1234:0:1234::/96",
|
|
description: "1st IP address indexed with IPv6 /96",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:0:1234::/80",
|
|
subnetMaskSize: 96,
|
|
index: 15,
|
|
CIDRBlock: "2001:db8:1234:0:1234:f::/96",
|
|
description: "16th IP address indexed with IPv6 /96",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:0db8:1234:ff00::0370:7334/80",
|
|
subnetMaskSize: 96,
|
|
index: 6425,
|
|
CIDRBlock: "2001:db8:1234:ff00:0:1919::/96",
|
|
description: "6426th IP address indexed with IPv6 /96",
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, _ := net.ParseCIDR(tc.clusterCIDRStr)
|
|
a, err := NewCIDRSet(clusterCIDR, tc.subnetMaskSize)
|
|
if err != nil {
|
|
t.Fatalf("error for %v ", tc.description)
|
|
}
|
|
cidr := a.indexToCIDRBlock(tc.index)
|
|
if cidr.String() != tc.CIDRBlock {
|
|
t.Fatalf("error for %v index %d %s", tc.description, tc.index, cidr.String())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCIDRSet_RandomishAllocation(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.123.234.0/16",
|
|
description: "RandomishAllocation with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef:1234::/16",
|
|
description: "RandomishAllocation with IPv6",
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, _ := net.ParseCIDR(tc.clusterCIDRStr)
|
|
a, err := NewCIDRSet(clusterCIDR, 24)
|
|
if err != nil {
|
|
t.Fatalf("Error allocating CIDRSet for %v", tc.description)
|
|
}
|
|
// allocate all the CIDRs
|
|
var cidrs []*net.IPNet
|
|
|
|
for i := 0; i < 256; i++ {
|
|
if c, err := a.AllocateNext(); err == nil {
|
|
cidrs = append(cidrs, c)
|
|
} else {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
}
|
|
|
|
//var err error
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
// release them all
|
|
for i := 0; i < len(cidrs); i++ {
|
|
a.Release(cidrs[i])
|
|
}
|
|
|
|
// allocate the CIDRs again
|
|
var rcidrs []*net.IPNet
|
|
for i := 0; i < 256; i++ {
|
|
if c, err := a.AllocateNext(); err == nil {
|
|
rcidrs = append(rcidrs, c)
|
|
} else {
|
|
t.Fatalf("unexpected error: %d, %v for %v", i, err, tc.description)
|
|
}
|
|
}
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
|
|
if !reflect.DeepEqual(cidrs, rcidrs) {
|
|
t.Fatalf("expected re-allocated cidrs are the same collection for %v", tc.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCIDRSet_AllocationOccupied(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.123.234.0/16",
|
|
description: "AllocationOccupied with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef:1234::/16",
|
|
description: "AllocationOccupied with IPv6",
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, _ := net.ParseCIDR(tc.clusterCIDRStr)
|
|
a, err := NewCIDRSet(clusterCIDR, 24)
|
|
if err != nil {
|
|
t.Fatalf("Error allocating CIDRSet for %v", tc.description)
|
|
}
|
|
// allocate all the CIDRs
|
|
var cidrs []*net.IPNet
|
|
var numCIDRs = 256
|
|
|
|
for i := 0; i < numCIDRs; i++ {
|
|
if c, err := a.AllocateNext(); err == nil {
|
|
cidrs = append(cidrs, c)
|
|
} else {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
}
|
|
|
|
//var err error
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
// release them all
|
|
for i := 0; i < len(cidrs); i++ {
|
|
a.Release(cidrs[i])
|
|
}
|
|
// occupy the last 128 CIDRs
|
|
for i := numCIDRs / 2; i < numCIDRs; i++ {
|
|
a.Occupy(cidrs[i])
|
|
}
|
|
|
|
// allocate the first 128 CIDRs again
|
|
var rcidrs []*net.IPNet
|
|
for i := 0; i < numCIDRs/2; i++ {
|
|
if c, err := a.AllocateNext(); err == nil {
|
|
rcidrs = append(rcidrs, c)
|
|
} else {
|
|
t.Fatalf("unexpected error: %d, %v for %v", i, err, tc.description)
|
|
}
|
|
}
|
|
_, err = a.AllocateNext()
|
|
if err == nil {
|
|
t.Fatalf("expected error because of fully-allocated range for %v", tc.description)
|
|
}
|
|
|
|
// check Occupy() work properly
|
|
for i := numCIDRs / 2; i < numCIDRs; i++ {
|
|
rcidrs = append(rcidrs, cidrs[i])
|
|
}
|
|
if !reflect.DeepEqual(cidrs, rcidrs) {
|
|
t.Fatalf("expected re-allocated cidrs are the same collection for %v", tc.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetBitforCIDR(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
subNetMaskSize int
|
|
subNetCIDRStr string
|
|
expectedBit int
|
|
expectErr bool
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.0.0.0/16",
|
|
expectedBit: 0,
|
|
expectErr: false,
|
|
description: "Get 0 Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "be00::/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "be00::/16",
|
|
expectedBit: 0,
|
|
expectErr: false,
|
|
description: "Get 0 Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.123.0.0/16",
|
|
expectedBit: 123,
|
|
expectErr: false,
|
|
description: "Get 123rd Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "be00::/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "beef::/16",
|
|
expectedBit: 0xef,
|
|
expectErr: false,
|
|
description: "Get xef Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.168.0.0/16",
|
|
expectedBit: 168,
|
|
expectErr: false,
|
|
description: "Get 168th Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "be00::/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "be68::/16",
|
|
expectedBit: 0x68,
|
|
expectErr: false,
|
|
description: "Get x68th Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.224.0.0/16",
|
|
expectedBit: 224,
|
|
expectErr: false,
|
|
description: "Get 224th Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "be00::/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "be24::/16",
|
|
expectedBit: 0x24,
|
|
expectErr: false,
|
|
description: "Get x24th Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "192.168.0.0/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "192.168.12.0/24",
|
|
expectedBit: 12,
|
|
expectErr: false,
|
|
description: "Get 12th Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef::/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "beef:1200::/24",
|
|
expectedBit: 0x12,
|
|
expectErr: false,
|
|
description: "Get x12th Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "192.168.0.0/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "192.168.151.0/24",
|
|
expectedBit: 151,
|
|
expectErr: false,
|
|
description: "Get 151st Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef::/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "beef:9700::/24",
|
|
expectedBit: 0x97,
|
|
expectErr: false,
|
|
description: "Get x97st Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "192.168.0.0/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "127.168.224.0/24",
|
|
expectErr: true,
|
|
description: "Get error with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef::/16",
|
|
subNetMaskSize: 24,
|
|
subNetCIDRStr: "2001:db00::/24",
|
|
expectErr: true,
|
|
description: "Get error with IPv6",
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, err := net.ParseCIDR(tc.clusterCIDRStr)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
|
|
cs, err := NewCIDRSet(clusterCIDR, tc.subNetMaskSize)
|
|
if err != nil {
|
|
t.Fatalf("Error allocating CIDRSet for %v", tc.description)
|
|
}
|
|
_, subnetCIDR, err := net.ParseCIDR(tc.subNetCIDRStr)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
|
|
got, err := cs.getIndexForCIDR(subnetCIDR)
|
|
if err == nil && tc.expectErr {
|
|
glog.Errorf("expected error but got null for %v", tc.description)
|
|
continue
|
|
}
|
|
|
|
if err != nil && !tc.expectErr {
|
|
glog.Errorf("unexpected error: %v for %v", err, tc.description)
|
|
continue
|
|
}
|
|
|
|
if got != tc.expectedBit {
|
|
glog.Errorf("expected %v, but got %v for %v", tc.expectedBit, got, tc.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestOccupy(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
subNetMaskSize int
|
|
subNetCIDRStr string
|
|
expectedUsedBegin int
|
|
expectedUsedEnd int
|
|
expectErr bool
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.0.0.0/8",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 255,
|
|
expectErr: false,
|
|
description: "Occupy all Bits with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:1200::/40",
|
|
subNetMaskSize: 48,
|
|
subNetCIDRStr: "2001:beef:1200::/40",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 255,
|
|
expectErr: false,
|
|
description: "Occupy all Bits with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.0.0.0/2",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 255,
|
|
expectErr: false,
|
|
description: "Occupy every Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:1200::/40",
|
|
subNetMaskSize: 48,
|
|
subNetCIDRStr: "2001:beef:1234::/34",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 255,
|
|
expectErr: false,
|
|
description: "Occupy every Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.0.0.0/16",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 0,
|
|
expectErr: false,
|
|
description: "Occupy 1st Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:1200::/40",
|
|
subNetMaskSize: 48,
|
|
subNetCIDRStr: "2001:beef:1200::/48",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 0,
|
|
expectErr: false,
|
|
description: "Occupy 1st Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 32,
|
|
subNetCIDRStr: "127.0.0.0/16",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 65535,
|
|
expectErr: false,
|
|
description: "Occupy 65535 Bits with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:1200::/48",
|
|
subNetMaskSize: 64,
|
|
subNetCIDRStr: "2001:beef:1200::/48",
|
|
expectedUsedBegin: 0,
|
|
expectedUsedEnd: 65535,
|
|
expectErr: false,
|
|
description: "Occupy 65535 Bits with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/7",
|
|
subNetMaskSize: 16,
|
|
subNetCIDRStr: "127.0.0.0/15",
|
|
expectedUsedBegin: 256,
|
|
expectedUsedEnd: 257,
|
|
expectErr: false,
|
|
description: "Occupy 257th Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:7f00::/39",
|
|
subNetMaskSize: 48,
|
|
subNetCIDRStr: "2001:beef:7f00::/47",
|
|
expectedUsedBegin: 256,
|
|
expectedUsedEnd: 257,
|
|
expectErr: false,
|
|
description: "Occupy 257th Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/7",
|
|
subNetMaskSize: 15,
|
|
subNetCIDRStr: "127.0.0.0/15",
|
|
expectedUsedBegin: 128,
|
|
expectedUsedEnd: 128,
|
|
expectErr: false,
|
|
description: "Occupy 128th Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:7f00::/39",
|
|
subNetMaskSize: 47,
|
|
subNetCIDRStr: "2001:beef:7f00::/47",
|
|
expectedUsedBegin: 128,
|
|
expectedUsedEnd: 128,
|
|
expectErr: false,
|
|
description: "Occupy 128th Bit with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/7",
|
|
subNetMaskSize: 18,
|
|
subNetCIDRStr: "127.0.0.0/15",
|
|
expectedUsedBegin: 1024,
|
|
expectedUsedEnd: 1031,
|
|
expectErr: false,
|
|
description: "Occupy 1031st Bit with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:7f00::/39",
|
|
subNetMaskSize: 50,
|
|
subNetCIDRStr: "2001:beef:7f00::/47",
|
|
expectedUsedBegin: 1024,
|
|
expectedUsedEnd: 1031,
|
|
expectErr: false,
|
|
description: "Occupy 1031st Bit with IPv6",
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, err := net.ParseCIDR(tc.clusterCIDRStr)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
|
|
cs, err := NewCIDRSet(clusterCIDR, tc.subNetMaskSize)
|
|
if err != nil {
|
|
t.Fatalf("Error allocating CIDRSet for %v", tc.description)
|
|
}
|
|
|
|
_, subnetCIDR, err := net.ParseCIDR(tc.subNetCIDRStr)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v for %v", err, tc.description)
|
|
}
|
|
|
|
err = cs.Occupy(subnetCIDR)
|
|
if err == nil && tc.expectErr {
|
|
t.Errorf("expected error but got none for %v", tc.description)
|
|
continue
|
|
}
|
|
if err != nil && !tc.expectErr {
|
|
t.Errorf("unexpected error: %v for %v", err, tc.description)
|
|
continue
|
|
}
|
|
|
|
expectedUsed := big.Int{}
|
|
for i := tc.expectedUsedBegin; i <= tc.expectedUsedEnd; i++ {
|
|
expectedUsed.SetBit(&expectedUsed, i, 1)
|
|
}
|
|
if expectedUsed.Cmp(&cs.used) != 0 {
|
|
t.Errorf("error for %v", tc.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCIDRSetv6(t *testing.T) {
|
|
cases := []struct {
|
|
clusterCIDRStr string
|
|
subNetMaskSize int
|
|
expectedCIDR string
|
|
expectedCIDR2 string
|
|
expectErr bool
|
|
description string
|
|
}{
|
|
{
|
|
clusterCIDRStr: "127.0.0.0/8",
|
|
subNetMaskSize: 32,
|
|
expectErr: false,
|
|
expectedCIDR: "127.0.0.0/32",
|
|
expectedCIDR2: "127.0.0.1/32",
|
|
description: "Max cluster subnet size with IPv4",
|
|
},
|
|
{
|
|
clusterCIDRStr: "beef:1234::/32",
|
|
subNetMaskSize: 49,
|
|
expectErr: true,
|
|
description: "Max cluster subnet size with IPv6",
|
|
},
|
|
{
|
|
clusterCIDRStr: "2001:beef:1234:369b::/60",
|
|
subNetMaskSize: 64,
|
|
expectedCIDR: "2001:beef:1234:3690::/64",
|
|
expectedCIDR2: "2001:beef:1234:3691::/64",
|
|
expectErr: false,
|
|
description: "Allocate a few IPv6",
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
_, clusterCIDR, _ := net.ParseCIDR(tc.clusterCIDRStr)
|
|
a, err := NewCIDRSet(clusterCIDR, tc.subNetMaskSize)
|
|
if err != nil {
|
|
if tc.expectErr {
|
|
continue
|
|
}
|
|
t.Fatalf("Error allocating CIDRSet for %v", tc.description)
|
|
}
|
|
|
|
p, err := a.AllocateNext()
|
|
if err == nil && tc.expectErr {
|
|
t.Errorf("expected error but got none for %v", tc.description)
|
|
continue
|
|
}
|
|
if err != nil && !tc.expectErr {
|
|
t.Errorf("unexpected error: %v for %v", err, tc.description)
|
|
continue
|
|
}
|
|
if !tc.expectErr {
|
|
if p.String() != tc.expectedCIDR {
|
|
t.Fatalf("unexpected allocated cidr: %s for %v", p.String(), tc.description)
|
|
}
|
|
}
|
|
p2, err := a.AllocateNext()
|
|
if !tc.expectErr {
|
|
if p2.String() != tc.expectedCIDR2 {
|
|
t.Fatalf("unexpected allocated cidr: %s for %v", p2.String(), tc.description)
|
|
}
|
|
}
|
|
}
|
|
}
|