115 lines
3.7 KiB
Go
115 lines
3.7 KiB
Go
package kms
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import (
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"context"
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"fmt"
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"github.com/hashicorp/boundary/internal/db"
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"github.com/hashicorp/boundary/internal/kms/store"
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wrapping "github.com/hashicorp/go-kms-wrapping"
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"github.com/hashicorp/go-kms-wrapping/structwrapping"
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"google.golang.org/protobuf/proto"
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)
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const (
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DefaultSessionKeyVersionTableName = "kms_session_key_version"
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)
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type SessionKeyVersion struct {
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*store.SessionKeyVersion
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tableName string `gorm:"-"`
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}
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// SessionKeyVersion creates a new in memory key version. No options are
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// currently supported.
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func NewSessionKeyVersion(sessionKeyId string, key []byte, rootKeyVersionId string, opt ...Option) (*SessionKeyVersion, error) {
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if sessionKeyId == "" {
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return nil, fmt.Errorf("new session key version: missing session key id: %w", db.ErrInvalidParameter)
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}
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if len(key) == 0 {
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return nil, fmt.Errorf("new session key version: missing key: %w", db.ErrInvalidParameter)
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}
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if rootKeyVersionId == "" {
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return nil, fmt.Errorf("new session key version: missing root key version id: %w", db.ErrInvalidParameter)
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}
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k := &SessionKeyVersion{
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SessionKeyVersion: &store.SessionKeyVersion{
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SessionKeyId: sessionKeyId,
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RootKeyVersionId: rootKeyVersionId,
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Key: key,
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},
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}
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return k, nil
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}
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// AllocSessionKeyVersion allocates a key version
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func AllocSessionKeyVersion() SessionKeyVersion {
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return SessionKeyVersion{
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SessionKeyVersion: &store.SessionKeyVersion{},
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}
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}
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// Clone creates a clone of the key version
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func (k *SessionKeyVersion) Clone() interface{} {
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cp := proto.Clone(k.SessionKeyVersion)
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return &SessionKeyVersion{
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SessionKeyVersion: cp.(*store.SessionKeyVersion),
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}
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}
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// VetForWrite implements db.VetForWrite() interface and validates the key
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// version before it's written.
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func (k *SessionKeyVersion) VetForWrite(ctx context.Context, r db.Reader, opType db.OpType, opt ...db.Option) error {
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if k.PrivateId == "" {
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return fmt.Errorf("session key version vet for write: missing private id: %w", db.ErrInvalidParameter)
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}
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if opType == db.CreateOp {
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if k.CtKey == nil {
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return fmt.Errorf("session key version vet for write: missing key: %w", db.ErrInvalidParameter)
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}
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if k.SessionKeyId == "" {
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return fmt.Errorf("session key version vet for write: missing session key id: %w", db.ErrInvalidParameter)
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}
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if k.RootKeyVersionId == "" {
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return fmt.Errorf("session key version vet for write: missing root key version id: %w", db.ErrInvalidParameter)
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}
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}
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return nil
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}
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// TableName returns the tablename to override the default gorm table name
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func (k *SessionKeyVersion) TableName() string {
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if k.tableName != "" {
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return k.tableName
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}
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return DefaultSessionKeyVersionTableName
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}
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// SetTableName sets the tablename and satisfies the ReplayableMessage
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// interface. If the caller attempts to set the name to "" the name will be
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// reset to the default name.
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func (k *SessionKeyVersion) SetTableName(n string) {
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k.tableName = n
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}
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// Encrypt will encrypt the key version's key
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func (k *SessionKeyVersion) Encrypt(ctx context.Context, cipher wrapping.Wrapper) error {
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// structwrapping doesn't support embedding, so we'll pass in the
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// store.SessionKeyVersion directly
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if err := structwrapping.WrapStruct(ctx, cipher, k.SessionKeyVersion, nil); err != nil {
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return fmt.Errorf("error encrypting kms session key version: %w", err)
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}
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return nil
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}
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// Decrypt will decrypt the key version's key
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func (k *SessionKeyVersion) Decrypt(ctx context.Context, cipher wrapping.Wrapper) error {
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// structwrapping doesn't support embedding, so we'll pass in the
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// store.SessionKeyVersion directly
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if err := structwrapping.UnwrapStruct(ctx, cipher, k.SessionKeyVersion, nil); err != nil {
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return fmt.Errorf("error decrypting kms session key version: %w", err)
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}
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return nil
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}
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