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[KEP-4817] Improve NetworkData Validation
* Add max length for InterfaceName and HardwareAddress * Prevent duplicated Addresses Signed-off-by: Lionel Jouin <lionel.jouin@est.tech>
This commit is contained in:
Lionel Jouin
parent
a062f91106
commit
8ab33b8413
@ -37,6 +37,7 @@ import (
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"k8s.io/dynamic-resource-allocation/structured"
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corevalidation "k8s.io/kubernetes/pkg/apis/core/validation"
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"k8s.io/kubernetes/pkg/apis/resource"
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netutils "k8s.io/utils/net"
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)
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var (
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@ -740,6 +741,9 @@ func truncateIfTooLong(str string, maxLen int) string {
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func validateDeviceStatus(device resource.AllocatedDeviceStatus, fldPath *field.Path, allocatedDevices sets.Set[structured.DeviceID]) field.ErrorList {
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var allErrs field.ErrorList
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allErrs = append(allErrs, validateDriverName(device.Driver, fldPath.Child("driver"))...)
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allErrs = append(allErrs, validatePoolName(device.Pool, fldPath.Child("pool"))...)
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allErrs = append(allErrs, validateDeviceName(device.Device, fldPath.Child("device"))...)
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deviceID := structured.DeviceID{Driver: device.Driver, Pool: device.Pool, Device: device.Device}
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if !allocatedDevices.Has(deviceID) {
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allErrs = append(allErrs, field.Invalid(fldPath, deviceID, "must be an allocated device in the claim"))
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@ -759,7 +763,7 @@ func validateRawExtension(rawExtension runtime.RawExtension, fldPath *field.Path
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if len(rawExtension.Raw) == 0 {
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allErrs = append(allErrs, field.Required(fldPath, ""))
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} else if err := json.Unmarshal(rawExtension.Raw, &v); err != nil {
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allErrs = append(allErrs, field.Invalid(fldPath, "<value omitted>", fmt.Sprintf("error parsing data: %v", err.Error())))
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allErrs = append(allErrs, field.Invalid(fldPath, "<value omitted>", fmt.Sprintf("error parsing data as JSON: %v", err.Error())))
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} else if v == nil {
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allErrs = append(allErrs, field.Required(fldPath, ""))
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} else if _, isObject := v.(map[string]any); !isObject {
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@ -768,16 +772,37 @@ func validateRawExtension(rawExtension runtime.RawExtension, fldPath *field.Path
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return allErrs
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}
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const interfaceNameMaxLength int = 256
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const hardwareAddressMaxLength int = 128
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func validateNetworkDeviceData(networkDeviceData *resource.NetworkDeviceData, fldPath *field.Path) field.ErrorList {
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var allErrs field.ErrorList
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if networkDeviceData == nil {
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return allErrs
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}
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allErrs = append(allErrs, validateSlice(networkDeviceData.Addresses, -1,
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if len(networkDeviceData.InterfaceName) > interfaceNameMaxLength {
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allErrs = append(allErrs, field.TooLong(fldPath.Child("interfaceName"), "" /* unused */, interfaceNameMaxLength))
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}
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if len(networkDeviceData.HardwareAddress) > hardwareAddressMaxLength {
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allErrs = append(allErrs, field.TooLong(fldPath.Child("hardwareAddress"), "" /* unused */, hardwareAddressMaxLength))
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}
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allErrs = append(allErrs, validateSet(networkDeviceData.Addresses, -1,
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func(address string, fldPath *field.Path) field.ErrorList {
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var allErrs field.ErrorList
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allErrs = append(allErrs, validation.IsValidCIDR(fldPath, address)...)
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return allErrs
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}, fldPath.Child("addresses"))...)
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return validation.IsValidCIDR(fldPath, address)
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},
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func(address string) (string, string) {
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// reformat CIDR to handle different ways IPs can be written
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// (e.g. 2001:db8::1/64 == 2001:0db8::1/64)
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ip, ipNet, err := netutils.ParseCIDRSloppy(address)
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if err != nil {
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return "", "" // will fail at IsValidCIDR
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}
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maskSize, _ := ipNet.Mask.Size()
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return fmt.Sprintf("%s/%d", ip.String(), maskSize), ""
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},
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fldPath.Child("addresses"))...)
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return allErrs
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}
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@ -1006,12 +1006,14 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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Raw: []byte(`{"kind": "foo", "apiVersion": "dra.example.com/v1"}`),
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},
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NetworkData: &resource.NetworkDeviceData{
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InterfaceName: "net-1",
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InterfaceName: strings.Repeat("x", 256),
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HardwareAddress: strings.Repeat("x", 128),
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Addresses: []string{
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"10.9.8.0/24",
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"2001:db8::/64",
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"10.9.8.1/24",
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"2001:db8::1/64",
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},
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HardwareAddress: "ea:9f:cb:40:b1:7b",
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},
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},
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}
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@ -1021,6 +1023,7 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-device-status-duplicate": {
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wantFailures: field.ErrorList{
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field.Duplicate(field.NewPath("status", "devices").Index(0).Child("networkData", "addresses").Index(1), "2001:db8::1/64"),
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field.Duplicate(field.NewPath("status", "devices").Index(1).Child("deviceID"), structured.DeviceID{Driver: goodName, Pool: goodName, Device: goodName}),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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@ -1030,6 +1033,12 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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Driver: goodName,
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Pool: goodName,
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Device: goodName,
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NetworkData: &resource.NetworkDeviceData{
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Addresses: []string{
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"2001:db8::1/64",
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"2001:0db8::1/64",
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},
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},
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},
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{
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Driver: goodName,
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@ -1043,6 +1052,8 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-network-device-status": {
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wantFailures: field.ErrorList{
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field.TooLong(field.NewPath("status", "devices").Index(0).Child("networkData", "interfaceName"), "", interfaceNameMaxLength),
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field.TooLong(field.NewPath("status", "devices").Index(0).Child("networkData", "hardwareAddress"), "", hardwareAddressMaxLength),
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("networkData", "addresses").Index(0), "300.9.8.0/24", "must be a valid CIDR value, (e.g. 10.9.8.0/24 or 2001:db8::/64)"),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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@ -1053,6 +1064,8 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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Pool: goodName,
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Device: goodName,
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NetworkData: &resource.NetworkDeviceData{
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InterfaceName: strings.Repeat("x", interfaceNameMaxLength+1),
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HardwareAddress: strings.Repeat("x", hardwareAddressMaxLength+1),
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Addresses: []string{
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"300.9.8.0/24",
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},
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@ -1065,7 +1078,7 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-data-device-status": {
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wantFailures: field.ErrorList{
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("data"), "<value omitted>", "error parsing data: invalid character 'o' in literal false (expecting 'a')"),
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("data"), "<value omitted>", "error parsing data as JSON: invalid character 'o' in literal false (expecting 'a')"),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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update: func(claim *resource.ResourceClaim) *resource.ResourceClaim {
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@ -1102,6 +1115,7 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-device-status-duplicate-disabled-feature-gate": {
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wantFailures: field.ErrorList{
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field.Duplicate(field.NewPath("status", "devices").Index(0).Child("networkData", "addresses").Index(1), "2001:db8::1/64"),
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field.Duplicate(field.NewPath("status", "devices").Index(1).Child("deviceID"), structured.DeviceID{Driver: goodName, Pool: goodName, Device: goodName}),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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@ -1111,6 +1125,12 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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Driver: goodName,
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Pool: goodName,
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Device: goodName,
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NetworkData: &resource.NetworkDeviceData{
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Addresses: []string{
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"2001:db8::1/64",
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"2001:0db8::1/64",
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},
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},
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},
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{
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Driver: goodName,
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@ -1124,6 +1144,8 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-network-device-status-disabled-feature-gate": {
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wantFailures: field.ErrorList{
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field.TooLong(field.NewPath("status", "devices").Index(0).Child("networkData", "interfaceName"), "", interfaceNameMaxLength),
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field.TooLong(field.NewPath("status", "devices").Index(0).Child("networkData", "hardwareAddress"), "", hardwareAddressMaxLength),
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("networkData", "addresses").Index(0), "300.9.8.0/24", "must be a valid CIDR value, (e.g. 10.9.8.0/24 or 2001:db8::/64)"),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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@ -1134,6 +1156,8 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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Pool: goodName,
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Device: goodName,
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NetworkData: &resource.NetworkDeviceData{
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InterfaceName: strings.Repeat("x", interfaceNameMaxLength+1),
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HardwareAddress: strings.Repeat("x", hardwareAddressMaxLength+1),
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Addresses: []string{
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"300.9.8.0/24",
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},
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@ -1146,7 +1170,7 @@ func TestValidateClaimStatusUpdate(t *testing.T) {
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},
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"invalid-data-device-status-disabled-feature-gate": {
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wantFailures: field.ErrorList{
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("data"), "<value omitted>", "error parsing data: invalid character 'o' in literal false (expecting 'a')"),
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field.Invalid(field.NewPath("status", "devices").Index(0).Child("data"), "<value omitted>", "error parsing data as JSON: invalid character 'o' in literal false (expecting 'a')"),
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},
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oldClaim: func() *resource.ResourceClaim { return validAllocatedClaim }(),
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update: func(claim *resource.ResourceClaim) *resource.ResourceClaim {
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