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cleanup: refactor functions to accept a context parameter

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Signed-off-by: Praveen M <m.praveen@ibm.com>
This commit is contained in:
Praveen M
2024-03-04 20:43:31 +05:30
committed by mergify[bot]
parent c90f7ed777
commit e345b26340
21 changed files with 104 additions and 97 deletions
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6
internal/kms/aws_metadata.go
View File

@ -183,7 +183,7 @@ func (kms *awsMetadataKMS) getService() (*awsKMS.KMS, error) {
}
// EncryptDEK uses the Amazon KMS and the configured CMK to encrypt the DEK.
func (kms *awsMetadataKMS) EncryptDEK(volumeID, plainDEK string) (string, error) {
func (kms *awsMetadataKMS) EncryptDEK(ctx context.Context, volumeID, plainDEK string) (string, error) {
svc, err := kms.getService()
if err != nil {
return "", fmt.Errorf("could not get KMS service: %w", err)
@ -205,7 +205,7 @@ func (kms *awsMetadataKMS) EncryptDEK(volumeID, plainDEK string) (string, error)
}
// DecryptDEK uses the Amazon KMS and the configured CMK to decrypt the DEK.
func (kms *awsMetadataKMS) DecryptDEK(volumeID, encryptedDEK string) (string, error) {
func (kms *awsMetadataKMS) DecryptDEK(ctx context.Context, volumeID, encryptedDEK string) (string, error) {
svc, err := kms.getService()
if err != nil {
return "", fmt.Errorf("could not get KMS service: %w", err)
@ -227,6 +227,6 @@ func (kms *awsMetadataKMS) DecryptDEK(volumeID, encryptedDEK string) (string, er
return string(result.Plaintext), nil
}
func (kms *awsMetadataKMS) GetSecret(volumeID string) (string, error) {
func (kms *awsMetadataKMS) GetSecret(ctx context.Context, volumeID string) (string, error) {
return "", ErrGetSecretUnsupported
}

4
internal/kms/aws_sts_metadata.go
View File

@ -193,7 +193,7 @@ func (as *awsSTSMetadataKMS) getServiceWithSTS() (*awsKMS.KMS, error) {
}
// EncryptDEK uses the Amazon KMS and the configured CMK to encrypt the DEK.
func (as *awsSTSMetadataKMS) EncryptDEK(_, plainDEK string) (string, error) {
func (as *awsSTSMetadataKMS) EncryptDEK(ctx context.Context, _, plainDEK string) (string, error) {
svc, err := as.getServiceWithSTS()
if err != nil {
return "", fmt.Errorf("failed to get KMS service: %w", err)
@ -213,7 +213,7 @@ func (as *awsSTSMetadataKMS) EncryptDEK(_, plainDEK string) (string, error) {
}
// DecryptDEK uses the Amazon KMS and the configured CMK to decrypt the DEK.
func (as *awsSTSMetadataKMS) DecryptDEK(_, encryptedDEK string) (string, error) {
func (as *awsSTSMetadataKMS) DecryptDEK(ctx context.Context, _, encryptedDEK string) (string, error) {
svc, err := as.getServiceWithSTS()
if err != nil {
return "", fmt.Errorf("failed to get KMS service: %w", err)

10
internal/kms/keyprotect.go
View File

@ -204,14 +204,14 @@ func (kms *keyProtectKMS) getService() error {
}
// EncryptDEK uses the KeyProtect KMS and the configured CRK to encrypt the DEK.
func (kms *keyProtectKMS) EncryptDEK(volumeID, plainDEK string) (string, error) {
func (kms *keyProtectKMS) EncryptDEK(ctx context.Context, volumeID, plainDEK string) (string, error) {
if err := kms.getService(); err != nil {
return "", fmt.Errorf("could not get KMS service: %w", err)
}
dekByteSlice := []byte(plainDEK)
aadVolID := []string{volumeID}
result, err := kms.client.Wrap(context.TODO(), kms.customerRootKey, dekByteSlice, &aadVolID)
result, err := kms.client.Wrap(ctx, kms.customerRootKey, dekByteSlice, &aadVolID)
if err != nil {
return "", fmt.Errorf("failed to wrap the DEK: %w", err)
}
@ -223,7 +223,7 @@ func (kms *keyProtectKMS) EncryptDEK(volumeID, plainDEK string) (string, error)
}
// DecryptDEK uses the Key protect KMS and the configured CRK to decrypt the DEK.
func (kms *keyProtectKMS) DecryptDEK(volumeID, encryptedDEK string) (string, error) {
func (kms *keyProtectKMS) DecryptDEK(ctx context.Context, volumeID, encryptedDEK string) (string, error) {
if err := kms.getService(); err != nil {
return "", fmt.Errorf("could not get KMS service: %w", err)
}
@ -235,7 +235,7 @@ func (kms *keyProtectKMS) DecryptDEK(volumeID, encryptedDEK string) (string, err
}
aadVolID := []string{volumeID}
result, err := kms.client.Unwrap(context.TODO(), kms.customerRootKey, ciphertextBlob, &aadVolID)
result, err := kms.client.Unwrap(ctx, kms.customerRootKey, ciphertextBlob, &aadVolID)
if err != nil {
return "", fmt.Errorf("failed to unwrap the DEK: %w", err)
}
@ -243,6 +243,6 @@ func (kms *keyProtectKMS) DecryptDEK(volumeID, encryptedDEK string) (string, err
return string(result), nil
}
func (kms *keyProtectKMS) GetSecret(volumeID string) (string, error) {
func (kms *keyProtectKMS) GetSecret(ctx context.Context, volumeID string) (string, error) {
return "", ErrGetSecretUnsupported
}

6
internal/kms/kmip.go
View File

@ -180,7 +180,7 @@ func initKMIPKMS(args ProviderInitArgs) (EncryptionKMS, error) {
}
// EncryptDEK uses the KMIP encrypt operation to encrypt the DEK.
func (kms *kmipKMS) EncryptDEK(_, plainDEK string) (string, error) {
func (kms *kmipKMS) EncryptDEK(ctx context.Context, _, plainDEK string) (string, error) {
conn, err := kms.connect()
if err != nil {
return "", err
@ -236,7 +236,7 @@ func (kms *kmipKMS) EncryptDEK(_, plainDEK string) (string, error) {
}
// DecryptDEK uses the KMIP decrypt operation to decrypt the DEK.
func (kms *kmipKMS) DecryptDEK(_, encryptedDEK string) (string, error) {
func (kms *kmipKMS) DecryptDEK(ctx context.Context, _, encryptedDEK string) (string, error) {
conn, err := kms.connect()
if err != nil {
return "", err
@ -500,7 +500,7 @@ func (kms *kmipKMS) verifyResponse(
return &batchItem, nil
}
func (kms *kmipKMS) GetSecret(volumeID string) (string, error) {
func (kms *kmipKMS) GetSecret(ctx context.Context, volumeID string) (string, error) {
return "", ErrGetSecretUnsupported
}

18
internal/kms/kms.go
View File

@ -331,18 +331,18 @@ type EncryptionKMS interface {
// EncryptDEK provides a way for a KMS to encrypt a DEK. In case the
// encryption is done transparently inside the KMS service, the
// function can return an unencrypted value.
EncryptDEK(volumeID, plainDEK string) (string, error)
EncryptDEK(ctx context.Context, volumeID, plainDEK string) (string, error)
// DecryptDEK provides a way for a KMS to decrypt a DEK. In case the
// encryption is done transparently inside the KMS service, the
// function does not need to do anything except return the encyptedDEK
// as it was received.
DecryptDEK(volumeID, encyptedDEK string) (string, error)
DecryptDEK(ctx context.Context, volumeID, encyptedDEK string) (string, error)
// GetSecret allows external key management systems to
// retrieve keys used in EncryptDEK / DecryptDEK to use them
// directly. Example: fscrypt uses this to unlock raw protectors
GetSecret(volumeID string) (string, error)
GetSecret(ctx context.Context, volumeID string) (string, error)
}
// DEKStoreType describes what DEKStore needs to be configured when using a
@ -364,11 +364,11 @@ const (
// the KMS can not store passphrases for volumes.
type DEKStore interface {
// StoreDEK saves the DEK in the configured store.
StoreDEK(volumeID string, dek string) error
StoreDEK(ctx context.Context, volumeID string, dek string) error
// FetchDEK reads the DEK from the configured store and returns it.
FetchDEK(volumeID string) (string, error)
FetchDEK(ctx context.Context, volumeID string) (string, error)
// RemoveDEK deletes the DEK from the configured store.
RemoveDEK(volumeID string) error
RemoveDEK(ctx context.Context, volumeID string) error
}
// integratedDEK is a DEKStore that can not be configured. Either the KMS does
@ -380,15 +380,15 @@ func (i integratedDEK) RequiresDEKStore() DEKStoreType {
return DEKStoreIntegrated
}
func (i integratedDEK) EncryptDEK(volumeID, plainDEK string) (string, error) {
func (i integratedDEK) EncryptDEK(ctx context.Context, volumeID, plainDEK string) (string, error) {
return plainDEK, nil
}
func (i integratedDEK) DecryptDEK(volumeID, encyptedDEK string) (string, error) {
func (i integratedDEK) DecryptDEK(ctx context.Context, volumeID, encyptedDEK string) (string, error) {
return encyptedDEK, nil
}
func (i integratedDEK) GetSecret(volumeID string) (string, error) {
func (i integratedDEK) GetSecret(ctx context.Context, volumeID string) (string, error) {
return "", ErrGetSecretIntegrated
}

18
internal/kms/secretskms.go
View File

@ -78,19 +78,19 @@ func (kms secretsKMS) Destroy() {
}
// FetchDEK returns passphrase from Kubernetes secrets.
func (kms secretsKMS) FetchDEK(key string) (string, error) {
func (kms secretsKMS) FetchDEK(ctx context.Context, key string) (string, error) {
return kms.passphrase, nil
}
// StoreDEK does nothing, as there is no passphrase per key (volume), so
// no need to store is anywhere.
func (kms secretsKMS) StoreDEK(key, value string) error {
func (kms secretsKMS) StoreDEK(ctx context.Context, key, value string) error {
return nil
}
// RemoveDEK is doing nothing as no new passphrases are saved with
// secretsKMS.
func (kms secretsKMS) RemoveDEK(key string) error {
func (kms secretsKMS) RemoveDEK(ctx context.Context, key string) error {
return nil
}
@ -206,9 +206,9 @@ type encryptedMetedataDEK struct {
// the secretsKMS and the volumeID.
// The resulting encryptedDEK contains a JSON with the encrypted DEK and the
// nonce that was used for encrypting.
func (kms secretsMetadataKMS) EncryptDEK(volumeID, plainDEK string) (string, error) {
func (kms secretsMetadataKMS) EncryptDEK(ctx context.Context, volumeID, plainDEK string) (string, error) {
// use the passphrase from the secretKMS
passphrase, err := kms.secretsKMS.FetchDEK(volumeID)
passphrase, err := kms.secretsKMS.FetchDEK(ctx, volumeID)
if err != nil {
return "", fmt.Errorf("failed to get passphrase: %w", err)
}
@ -236,9 +236,9 @@ func (kms secretsMetadataKMS) EncryptDEK(volumeID, plainDEK string) (string, err
// DecryptDEK takes the JSON formatted `encryptedMetadataDEK` contents, and it
// fetches secretKMS passphrase to decrypt the DEK.
func (kms secretsMetadataKMS) DecryptDEK(volumeID, encryptedDEK string) (string, error) {
func (kms secretsMetadataKMS) DecryptDEK(ctx context.Context, volumeID, encryptedDEK string) (string, error) {
// use the passphrase from the secretKMS
passphrase, err := kms.secretsKMS.FetchDEK(volumeID)
passphrase, err := kms.secretsKMS.FetchDEK(ctx, volumeID)
if err != nil {
return "", fmt.Errorf("failed to get passphrase: %w", err)
}
@ -263,9 +263,9 @@ func (kms secretsMetadataKMS) DecryptDEK(volumeID, encryptedDEK string) (string,
return string(dek), nil
}
func (kms secretsMetadataKMS) GetSecret(volumeID string) (string, error) {
func (kms secretsMetadataKMS) GetSecret(ctx context.Context, volumeID string) (string, error) {
// use the passphrase from the secretKMS
return kms.secretsKMS.FetchDEK(volumeID)
return kms.secretsKMS.FetchDEK(ctx, volumeID)
}
// generateCipher returns a AEAD cipher based on a passphrase and salt

9
internal/kms/secretskms_test.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package kms
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
@ -103,19 +104,21 @@ func TestWorkflowSecretsMetadataKMS(t *testing.T) {
// plainDEK is the (LUKS) passphrase for the volume
plainDEK := "usually created with generateNewEncryptionPassphrase()"
encryptedDEK, err := kms.EncryptDEK(volumeID, plainDEK)
ctx := context.TODO()
encryptedDEK, err := kms.EncryptDEK(ctx, volumeID, plainDEK)
assert.NoError(t, err)
assert.NotEqual(t, "", encryptedDEK)
assert.NotEqual(t, plainDEK, encryptedDEK)
// with an incorrect volumeID, decrypting should fail
decryptedDEK, err := kms.DecryptDEK("incorrect-volumeID", encryptedDEK)
decryptedDEK, err := kms.DecryptDEK(ctx, "incorrect-volumeID", encryptedDEK)
assert.Error(t, err)
assert.Equal(t, "", decryptedDEK)
assert.NotEqual(t, plainDEK, decryptedDEK)
// with the right volumeID, decrypting should return the plainDEK
decryptedDEK, err = kms.DecryptDEK(volumeID, encryptedDEK)
decryptedDEK, err = kms.DecryptDEK(ctx, volumeID, encryptedDEK)
assert.NoError(t, err)
assert.NotEqual(t, "", decryptedDEK)
assert.Equal(t, plainDEK, decryptedDEK)

7
internal/kms/vault.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package kms
import (
"context"
"errors"
"fmt"
"os"
@ -395,7 +396,7 @@ func initVaultKMS(args ProviderInitArgs) (EncryptionKMS, error) {
// FetchDEK returns passphrase from Vault. The passphrase is stored in a
// data.data.passphrase structure.
func (kms *vaultKMS) FetchDEK(key string) (string, error) {
func (kms *vaultKMS) FetchDEK(ctx context.Context, key string) (string, error) {
// Since the second return variable loss.Version is not used, there it is ignored.
s, _, err := kms.secrets.GetSecret(filepath.Join(kms.vaultPassphrasePath, key), kms.keyContext)
if err != nil {
@ -415,7 +416,7 @@ func (kms *vaultKMS) FetchDEK(key string) (string, error) {
}
// StoreDEK saves new passphrase in Vault.
func (kms *vaultKMS) StoreDEK(key, value string) error {
func (kms *vaultKMS) StoreDEK(ctx context.Context, key, value string) error {
data := map[string]interface{}{
"data": map[string]string{
"passphrase": value,
@ -433,7 +434,7 @@ func (kms *vaultKMS) StoreDEK(key, value string) error {
}
// RemoveDEK deletes passphrase from Vault.
func (kms *vaultKMS) RemoveDEK(key string) error {
func (kms *vaultKMS) RemoveDEK(ctx context.Context, key string) error {
pathKey := filepath.Join(kms.vaultPassphrasePath, key)
err := kms.secrets.DeleteSecret(pathKey, kms.getDeleteKeyContext())
if err != nil {

6
internal/kms/vault_tokens.go
View File

@ -459,7 +459,7 @@ func (vtc *vaultTenantConnection) getK8sClient() (*kubernetes.Clientset, error)
// FetchDEK returns passphrase from Vault. The passphrase is stored in a
// data.data.passphrase structure.
func (vtc *vaultTenantConnection) FetchDEK(key string) (string, error) {
func (vtc *vaultTenantConnection) FetchDEK(ctx context.Context, key string) (string, error) {
// Since the second return variable loss.Version is not used, there it is ignored.
s, _, err := vtc.secrets.GetSecret(key, vtc.keyContext)
if err != nil {
@ -479,7 +479,7 @@ func (vtc *vaultTenantConnection) FetchDEK(key string) (string, error) {
}
// StoreDEK saves new passphrase in Vault.
func (vtc *vaultTenantConnection) StoreDEK(key, value string) error {
func (vtc *vaultTenantConnection) StoreDEK(ctx context.Context, key, value string) error {
data := map[string]interface{}{
"data": map[string]string{
"passphrase": value,
@ -496,7 +496,7 @@ func (vtc *vaultTenantConnection) StoreDEK(key, value string) error {
}
// RemoveDEK deletes passphrase from Vault.
func (vtc *vaultTenantConnection) RemoveDEK(key string) error {
func (vtc *vaultTenantConnection) RemoveDEK(ctx context.Context, key string) error {
err := vtc.secrets.DeleteSecret(key, vtc.getDeleteKeyContext())
if err != nil {
return fmt.Errorf("delete passphrase at %s request to vault failed: %w", key, err)