473d3c26b3
* Intercept key_id from generic configmap and turn it into a wrapperv2 option * changelog * Doubled append * Only convert key_id to an opt in OCI
350 lines
11 KiB
Go
350 lines
11 KiB
Go
package configutil
|
|
|
|
import (
|
|
"context"
|
|
"crypto/rand"
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
|
|
"github.com/hashicorp/errwrap"
|
|
"github.com/hashicorp/go-hclog"
|
|
wrapping "github.com/hashicorp/go-kms-wrapping/v2"
|
|
aeadwrapper "github.com/hashicorp/go-kms-wrapping/wrappers/aead/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/alicloudkms/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/awskms/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/azurekeyvault/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/gcpckms/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/ocikms/v2"
|
|
"github.com/hashicorp/go-kms-wrapping/wrappers/transit/v2"
|
|
"github.com/hashicorp/go-multierror"
|
|
"github.com/hashicorp/go-secure-stdlib/parseutil"
|
|
"github.com/hashicorp/hcl"
|
|
"github.com/hashicorp/hcl/hcl/ast"
|
|
"github.com/hashicorp/vault/sdk/logical"
|
|
)
|
|
|
|
var (
|
|
ConfigureWrapper = configureWrapper
|
|
CreateSecureRandomReaderFunc = createSecureRandomReader
|
|
)
|
|
|
|
// Entropy contains Entropy configuration for the server
|
|
type EntropyMode int
|
|
|
|
const (
|
|
EntropyUnknown EntropyMode = iota
|
|
EntropyAugmentation
|
|
)
|
|
|
|
type Entropy struct {
|
|
Mode EntropyMode
|
|
}
|
|
|
|
// KMS contains KMS configuration for the server
|
|
type KMS struct {
|
|
UnusedKeys []string `hcl:",unusedKeys"`
|
|
Type string
|
|
// Purpose can be used to allow a string-based specification of what this
|
|
// KMS is designated for, in situations where we want to allow more than
|
|
// one KMS to be specified
|
|
Purpose []string `hcl:"-"`
|
|
|
|
Disabled bool
|
|
Config map[string]string
|
|
}
|
|
|
|
func (k *KMS) GoString() string {
|
|
return fmt.Sprintf("*%#v", *k)
|
|
}
|
|
|
|
func parseKMS(result *[]*KMS, list *ast.ObjectList, blockName string, maxKMS int) error {
|
|
if len(list.Items) > maxKMS {
|
|
return fmt.Errorf("only two or less %q blocks are permitted", blockName)
|
|
}
|
|
|
|
seals := make([]*KMS, 0, len(list.Items))
|
|
for _, item := range list.Items {
|
|
key := blockName
|
|
if len(item.Keys) > 0 {
|
|
key = item.Keys[0].Token.Value().(string)
|
|
}
|
|
|
|
// We first decode into a map[string]interface{} because purpose isn't
|
|
// necessarily a string. Then we migrate everything else over to
|
|
// map[string]string and error if it doesn't work.
|
|
var m map[string]interface{}
|
|
if err := hcl.DecodeObject(&m, item.Val); err != nil {
|
|
return multierror.Prefix(err, fmt.Sprintf("%s.%s:", blockName, key))
|
|
}
|
|
|
|
var purpose []string
|
|
var err error
|
|
if v, ok := m["purpose"]; ok {
|
|
if purpose, err = parseutil.ParseCommaStringSlice(v); err != nil {
|
|
return multierror.Prefix(fmt.Errorf("unable to parse 'purpose' in kms type %q: %w", key, err), fmt.Sprintf("%s.%s:", blockName, key))
|
|
}
|
|
for i, p := range purpose {
|
|
purpose[i] = strings.ToLower(p)
|
|
}
|
|
delete(m, "purpose")
|
|
}
|
|
|
|
var disabled bool
|
|
if v, ok := m["disabled"]; ok {
|
|
disabled, err = parseutil.ParseBool(v)
|
|
if err != nil {
|
|
return multierror.Prefix(err, fmt.Sprintf("%s.%s:", blockName, key))
|
|
}
|
|
delete(m, "disabled")
|
|
}
|
|
|
|
strMap := make(map[string]string, len(m))
|
|
for k, v := range m {
|
|
s, err := parseutil.ParseString(v)
|
|
if err != nil {
|
|
return multierror.Prefix(err, fmt.Sprintf("%s.%s:", blockName, key))
|
|
}
|
|
strMap[k] = s
|
|
}
|
|
|
|
seal := &KMS{
|
|
Type: strings.ToLower(key),
|
|
Purpose: purpose,
|
|
Disabled: disabled,
|
|
}
|
|
if len(strMap) > 0 {
|
|
seal.Config = strMap
|
|
}
|
|
seals = append(seals, seal)
|
|
}
|
|
|
|
*result = append(*result, seals...)
|
|
|
|
return nil
|
|
}
|
|
|
|
func ParseKMSes(d string) ([]*KMS, error) {
|
|
// Parse!
|
|
obj, err := hcl.Parse(d)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Start building the result
|
|
var result struct {
|
|
Seals []*KMS `hcl:"-"`
|
|
}
|
|
|
|
if err := hcl.DecodeObject(&result, obj); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
list, ok := obj.Node.(*ast.ObjectList)
|
|
if !ok {
|
|
return nil, fmt.Errorf("error parsing: file doesn't contain a root object")
|
|
}
|
|
|
|
if o := list.Filter("seal"); len(o.Items) > 0 {
|
|
if err := parseKMS(&result.Seals, o, "seal", 3); err != nil {
|
|
return nil, fmt.Errorf("error parsing 'seal': %w", err)
|
|
}
|
|
}
|
|
|
|
if o := list.Filter("kms"); len(o.Items) > 0 {
|
|
if err := parseKMS(&result.Seals, o, "kms", 3); err != nil {
|
|
return nil, fmt.Errorf("error parsing 'kms': %w", err)
|
|
}
|
|
}
|
|
|
|
return result.Seals, nil
|
|
}
|
|
|
|
func configureWrapper(configKMS *KMS, infoKeys *[]string, info *map[string]string, logger hclog.Logger, opts ...wrapping.Option) (wrapping.Wrapper, error) {
|
|
var wrapper wrapping.Wrapper
|
|
var kmsInfo map[string]string
|
|
var err error
|
|
|
|
switch wrapping.WrapperType(configKMS.Type) {
|
|
case wrapping.WrapperTypeShamir:
|
|
return nil, nil
|
|
|
|
case wrapping.WrapperTypeAead:
|
|
wrapper, kmsInfo, err = GetAEADKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypeAliCloudKms:
|
|
wrapper, kmsInfo, err = GetAliCloudKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypeAwsKms:
|
|
wrapper, kmsInfo, err = GetAWSKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypeAzureKeyVault:
|
|
wrapper, kmsInfo, err = GetAzureKeyVaultKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypeGcpCkms:
|
|
wrapper, kmsInfo, err = GetGCPCKMSKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypeOciKms:
|
|
if keyId, ok := configKMS.Config["key_id"]; ok {
|
|
opts = append(opts, wrapping.WithKeyId(keyId))
|
|
}
|
|
wrapper, kmsInfo, err = GetOCIKMSKMSFunc(configKMS, opts...)
|
|
case wrapping.WrapperTypeTransit:
|
|
wrapper, kmsInfo, err = GetTransitKMSFunc(configKMS, opts...)
|
|
|
|
case wrapping.WrapperTypePkcs11:
|
|
return nil, fmt.Errorf("KMS type 'pkcs11' requires the Vault Enterprise HSM binary")
|
|
|
|
default:
|
|
return nil, fmt.Errorf("Unknown KMS type %q", configKMS.Type)
|
|
}
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if infoKeys != nil && info != nil {
|
|
for k, v := range kmsInfo {
|
|
*infoKeys = append(*infoKeys, k)
|
|
(*info)[k] = v
|
|
}
|
|
}
|
|
|
|
return wrapper, nil
|
|
}
|
|
|
|
func GetAEADKMSFunc(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := aeadwrapper.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
str := "AEAD Type"
|
|
if len(kms.Purpose) > 0 {
|
|
str = fmt.Sprintf("%v %s", kms.Purpose, str)
|
|
}
|
|
info[str] = wrapperInfo.Metadata["aead_type"]
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
func GetAliCloudKMSFunc(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := alicloudkms.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
// If the error is any other than logical.KeyNotFoundError, return the error
|
|
if !errwrap.ContainsType(err, new(logical.KeyNotFoundError)) {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["AliCloud KMS Region"] = wrapperInfo.Metadata["region"]
|
|
info["AliCloud KMS KeyID"] = wrapperInfo.Metadata["kms_key_id"]
|
|
if domain, ok := wrapperInfo.Metadata["domain"]; ok {
|
|
info["AliCloud KMS Domain"] = domain
|
|
}
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
var GetAWSKMSFunc = func(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := awskms.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
// If the error is any other than logical.KeyNotFoundError, return the error
|
|
if !errwrap.ContainsType(err, new(logical.KeyNotFoundError)) {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["AWS KMS Region"] = wrapperInfo.Metadata["region"]
|
|
info["AWS KMS KeyID"] = wrapperInfo.Metadata["kms_key_id"]
|
|
if endpoint, ok := wrapperInfo.Metadata["endpoint"]; ok {
|
|
info["AWS KMS Endpoint"] = endpoint
|
|
}
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
func GetAzureKeyVaultKMSFunc(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := azurekeyvault.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
// If the error is any other than logical.KeyNotFoundError, return the error
|
|
if !errwrap.ContainsType(err, new(logical.KeyNotFoundError)) {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["Azure Environment"] = wrapperInfo.Metadata["environment"]
|
|
info["Azure Vault Name"] = wrapperInfo.Metadata["vault_name"]
|
|
info["Azure Key Name"] = wrapperInfo.Metadata["key_name"]
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
func GetGCPCKMSKMSFunc(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := gcpckms.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
// If the error is any other than logical.KeyNotFoundError, return the error
|
|
if !errwrap.ContainsType(err, new(logical.KeyNotFoundError)) {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["GCP KMS Project"] = wrapperInfo.Metadata["project"]
|
|
info["GCP KMS Region"] = wrapperInfo.Metadata["region"]
|
|
info["GCP KMS Key Ring"] = wrapperInfo.Metadata["key_ring"]
|
|
info["GCP KMS Crypto Key"] = wrapperInfo.Metadata["crypto_key"]
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
func GetOCIKMSKMSFunc(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := ocikms.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["OCI KMS KeyID"] = wrapperInfo.Metadata[ocikms.KmsConfigKeyId]
|
|
info["OCI KMS Crypto Endpoint"] = wrapperInfo.Metadata[ocikms.KmsConfigCryptoEndpoint]
|
|
info["OCI KMS Management Endpoint"] = wrapperInfo.Metadata[ocikms.KmsConfigManagementEndpoint]
|
|
info["OCI KMS Principal Type"] = wrapperInfo.Metadata["principal_type"]
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
var GetTransitKMSFunc = func(kms *KMS, opts ...wrapping.Option) (wrapping.Wrapper, map[string]string, error) {
|
|
wrapper := transit.NewWrapper()
|
|
wrapperInfo, err := wrapper.SetConfig(context.Background(), append(opts, wrapping.WithConfigMap(kms.Config))...)
|
|
if err != nil {
|
|
// If the error is any other than logical.KeyNotFoundError, return the error
|
|
if !errwrap.ContainsType(err, new(logical.KeyNotFoundError)) {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
info := make(map[string]string)
|
|
if wrapperInfo != nil {
|
|
info["Transit Address"] = wrapperInfo.Metadata["address"]
|
|
info["Transit Mount Path"] = wrapperInfo.Metadata["mount_path"]
|
|
info["Transit Key Name"] = wrapperInfo.Metadata["key_name"]
|
|
if namespace, ok := wrapperInfo.Metadata["namespace"]; ok {
|
|
info["Transit Namespace"] = namespace
|
|
}
|
|
}
|
|
return wrapper, info, nil
|
|
}
|
|
|
|
func createSecureRandomReader(conf *SharedConfig, wrapper wrapping.Wrapper) (io.Reader, error) {
|
|
return rand.Reader, nil
|
|
}
|