diff --git a/internal/model/model.go b/internal/model/model.go
index 2927490e..5cec18cc 100644
--- a/internal/model/model.go
+++ b/internal/model/model.go
@@ -655,7 +655,7 @@ func (m *Model) Request(deviceID protocol.DeviceID, folder, name string, offset
 	}
 
 	lf := r.Get(protocol.LocalDeviceID, name)
-	if protocol.IsInvalid(lf.Flags) || protocol.IsDeleted(lf.Flags) {
+	if lf.IsInvalid() || lf.IsDeleted() {
 		if debug {
 			l.Debugf("%v REQ(in): %s: %q / %q o=%d s=%d; invalid: %v", m, deviceID, folder, name, offset, size, lf)
 		}
@@ -1085,7 +1085,7 @@ func (m *Model) ScanFolderSub(folder, sub string) error {
 		}
 
 		seenPrefix = true
-		if !protocol.IsDeleted(f.Flags) {
+		if !f.IsDeleted() {
 			if f.IsInvalid() {
 				return true
 			}
diff --git a/internal/model/puller.go b/internal/model/puller.go
index 976995b5..3f34ef2f 100644
--- a/internal/model/puller.go
+++ b/internal/model/puller.go
@@ -313,10 +313,10 @@ func (p *Puller) pullerIteration(ncopiers, npullers, nfinishers int, checksum bo
 		}
 
 		switch {
-		case protocol.IsDeleted(file.Flags):
+		case file.IsDeleted():
 			// A deleted file or directory
 			deletions = append(deletions, file)
-		case protocol.IsDirectory(file.Flags):
+		case file.IsDirectory():
 			// A new or changed directory
 			p.handleDir(file)
 		default:
diff --git a/internal/protocol/message.go b/internal/protocol/message.go
index eff837fe..5d35f17c 100644
--- a/internal/protocol/message.go
+++ b/internal/protocol/message.go
@@ -37,7 +37,7 @@ func (f FileInfo) String() string {
 }
 
 func (f FileInfo) Size() (bytes int64) {
-	if IsDeleted(f.Flags) || IsDirectory(f.Flags) {
+	if f.IsDeleted() || f.IsDirectory() {
 		return 128
 	}
 	for _, b := range f.Blocks {
@@ -47,15 +47,19 @@ func (f FileInfo) Size() (bytes int64) {
 }
 
 func (f FileInfo) IsDeleted() bool {
-	return IsDeleted(f.Flags)
+	return f.Flags&FlagDeleted != 0
 }
 
 func (f FileInfo) IsInvalid() bool {
-	return IsInvalid(f.Flags)
+	return f.Flags&FlagInvalid != 0
 }
 
 func (f FileInfo) IsDirectory() bool {
-	return IsDirectory(f.Flags)
+	return f.Flags&FlagDirectory != 0
+}
+
+func (f FileInfo) HasPermissionBits() bool {
+	return f.Flags&FlagNoPermBits == 0
 }
 
 // Used for unmarshalling a FileInfo structure but skipping the actual block list
@@ -75,7 +79,7 @@ func (f FileInfoTruncated) String() string {
 
 // Returns a statistical guess on the size, not the exact figure
 func (f FileInfoTruncated) Size() int64 {
-	if IsDeleted(f.Flags) || IsDirectory(f.Flags) {
+	if f.IsDeleted() || f.IsDirectory() {
 		return 128
 	}
 	if f.NumBlocks < 2 {
@@ -86,17 +90,27 @@ func (f FileInfoTruncated) Size() int64 {
 }
 
 func (f FileInfoTruncated) IsDeleted() bool {
-	return IsDeleted(f.Flags)
+	return f.Flags&FlagDeleted != 0
 }
 
 func (f FileInfoTruncated) IsInvalid() bool {
-	return IsInvalid(f.Flags)
+	return f.Flags&FlagInvalid != 0
+}
+
+func (f FileInfoTruncated) IsDirectory() bool {
+	return f.Flags&FlagDirectory != 0
+}
+
+func (f FileInfoTruncated) HasPermissionBits() bool {
+	return f.Flags&FlagNoPermBits == 0
 }
 
 type FileIntf interface {
 	Size() int64
 	IsDeleted() bool
 	IsInvalid() bool
+	IsDirectory() bool
+	HasPermissionBits() bool
 }
 
 type BlockInfo struct {
diff --git a/internal/protocol/protocol.go b/internal/protocol/protocol.go
index ae7f480b..7de53eab 100644
--- a/internal/protocol/protocol.go
+++ b/internal/protocol/protocol.go
@@ -637,19 +637,3 @@ func (c *rawConnection) Statistics() Statistics {
 		OutBytesTotal: c.cw.Tot(),
 	}
 }
-
-func IsDeleted(bits uint32) bool {
-	return bits&FlagDeleted != 0
-}
-
-func IsInvalid(bits uint32) bool {
-	return bits&FlagInvalid != 0
-}
-
-func IsDirectory(bits uint32) bool {
-	return bits&FlagDirectory != 0
-}
-
-func HasPermissionBits(bits uint32) bool {
-	return bits&FlagNoPermBits == 0
-}
diff --git a/internal/scanner/blockqueue.go b/internal/scanner/blockqueue.go
index 9d75dac7..cd0a0a11 100644
--- a/internal/scanner/blockqueue.go
+++ b/internal/scanner/blockqueue.go
@@ -68,7 +68,7 @@ func HashFile(path string, blockSize int) ([]protocol.BlockInfo, error) {
 
 func hashFiles(dir string, blockSize int, outbox, inbox chan protocol.FileInfo) {
 	for f := range inbox {
-		if protocol.IsDirectory(f.Flags) || protocol.IsDeleted(f.Flags) {
+		if f.IsDirectory() || f.IsDeleted() {
 			outbox <- f
 			continue
 		}
diff --git a/internal/scanner/walk.go b/internal/scanner/walk.go
index 927a41e8..bd3ecc4f 100644
--- a/internal/scanner/walk.go
+++ b/internal/scanner/walk.go
@@ -134,8 +134,8 @@ func (w *Walker) walkAndHashFiles(fchan chan protocol.FileInfo) filepath.WalkFun
 		if info.Mode().IsDir() {
 			if w.CurrentFiler != nil {
 				cf := w.CurrentFiler.CurrentFile(rn)
-				permUnchanged := w.IgnorePerms || !protocol.HasPermissionBits(cf.Flags) || PermsEqual(cf.Flags, uint32(info.Mode()))
-				if !protocol.IsDeleted(cf.Flags) && protocol.IsDirectory(cf.Flags) && permUnchanged {
+				permUnchanged := w.IgnorePerms || !cf.HasPermissionBits() || PermsEqual(cf.Flags, uint32(info.Mode()))
+				if !cf.IsDeleted() && cf.IsDirectory() && permUnchanged {
 					return nil
 				}
 			}
@@ -162,8 +162,8 @@ func (w *Walker) walkAndHashFiles(fchan chan protocol.FileInfo) filepath.WalkFun
 		if info.Mode().IsRegular() {
 			if w.CurrentFiler != nil {
 				cf := w.CurrentFiler.CurrentFile(rn)
-				permUnchanged := w.IgnorePerms || !protocol.HasPermissionBits(cf.Flags) || PermsEqual(cf.Flags, uint32(info.Mode()))
-				if !protocol.IsDeleted(cf.Flags) && cf.Modified == info.ModTime().Unix() && permUnchanged {
+				permUnchanged := w.IgnorePerms || !cf.HasPermissionBits() || PermsEqual(cf.Flags, uint32(info.Mode()))
+				if !cf.IsDeleted() && cf.Modified == info.ModTime().Unix() && permUnchanged {
 					return nil
 				}