diff --git a/commonfile/fileproto/file.pb.go b/commonfile/fileproto/file.pb.go
index dc3e0a31..2f409c6b 100644
--- a/commonfile/fileproto/file.pb.go
+++ b/commonfile/fileproto/file.pb.go
@@ -27,18 +27,21 @@ type ErrCodes int32
 const (
 	ErrCodes_Unexpected  ErrCodes = 0
 	ErrCodes_CIDNotFound ErrCodes = 1
+	ErrCodes_Forbidden   ErrCodes = 2
 	ErrCodes_ErrorOffset ErrCodes = 200
 )
 
 var ErrCodes_name = map[int32]string{
 	0:   "Unexpected",
 	1:   "CIDNotFound",
+	2:   "Forbidden",
 	200: "ErrorOffset",
 }
 
 var ErrCodes_value = map[string]int32{
 	"Unexpected":  0,
 	"CIDNotFound": 1,
+	"Forbidden":   2,
 	"ErrorOffset": 200,
 }
 
@@ -1092,55 +1095,56 @@ func init() {
 }
 
 var fileDescriptor_fd665a7e11c833d5 = []byte{
-	// 764 bytes of a gzipped FileDescriptorProto
+	// 774 bytes of a gzipped FileDescriptorProto
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+	0x7a, 0xe6, 0x9d, 0xc8, 0xf2, 0x0c, 0xca, 0xd2, 0x1a, 0x43, 0x8d, 0x19, 0xdf, 0xa9, 0x0d, 0x59,
+	0xbf, 0xf7, 0x9b, 0x5b, 0x91, 0x6b, 0x1f, 0x20, 0x1d, 0x7b, 0x34, 0x4b, 0x2b, 0xef, 0x99, 0x7a,
+	0x23, 0xfb, 0x32, 0x2d, 0x4a, 0x9a, 0x6f, 0xb9, 0xa8, 0xf9, 0x05, 0x22, 0x17, 0x95, 0xb1, 0x14,
+	0x22, 0x99, 0x26, 0xc3, 0x2c, 0xcb, 0x34, 0xbb, 0x29, 0x64, 0x99, 0xe6, 0xa7, 0x7f, 0x07, 0xfe,
+	0x89, 0x05, 0x5a, 0x4b, 0xbd, 0xa6, 0xa4, 0xf9, 0x6f, 0x0e, 0x4f, 0xf9, 0x27, 0x73, 0x21, 0xf3,
+	0xcf, 0xce, 0x96, 0xcc, 0x3f, 0x37, 0x48, 0xed, 0xd6, 0xc5, 0x95, 0xa1, 0x5c, 0x5e, 0x19, 0xca,
+	0xcf, 0x2b, 0x43, 0xf9, 0x7a, 0x6d, 0xe4, 0x2e, 0xaf, 0x8d, 0xdc, 0x8f, 0x6b, 0x23, 0xf7, 0x76,
+	0x35, 0xeb, 0x9f, 0x8a, 0x41, 0x91, 0xff, 0x79, 0xf4, 0x2b, 0x00, 0x00, 0xff, 0xff, 0xac, 0xc4,
+	0x07, 0x04, 0x73, 0x08, 0x00, 0x00,
 }
 
 func (m *BlockGetRequest) Marshal() (dAtA []byte, err error) {
diff --git a/commonfile/fileproto/fileprotoerr/fileprotoerr.go b/commonfile/fileproto/fileprotoerr/fileprotoerr.go
index fc7dbb4e..81bdd34d 100644
--- a/commonfile/fileproto/fileprotoerr/fileprotoerr.go
+++ b/commonfile/fileproto/fileprotoerr/fileprotoerr.go
@@ -10,4 +10,5 @@ var (
 	errGroup       = rpcerr.ErrGroup(fileproto.ErrCodes_ErrorOffset)
 	ErrUnexpected  = errGroup.Register(fmt.Errorf("unexpected fileproto error"), uint64(fileproto.ErrCodes_Unexpected))
 	ErrCIDNotFound = errGroup.Register(fmt.Errorf("CID not found"), uint64(fileproto.ErrCodes_CIDNotFound))
+	ErrForbidden   = errGroup.Register(fmt.Errorf("forbidden"), uint64(fileproto.ErrCodes_Forbidden))
 )
diff --git a/commonfile/fileproto/protos/file.proto b/commonfile/fileproto/protos/file.proto
index c7d78cb9..3118bb76 100644
--- a/commonfile/fileproto/protos/file.proto
+++ b/commonfile/fileproto/protos/file.proto
@@ -6,6 +6,7 @@ option go_package = "commonfile/fileproto";
 enum ErrCodes {
     Unexpected = 0;
     CIDNotFound = 1;
+    Forbidden = 2;
     ErrorOffset = 200;
 }