lint fixes

4 files changed, 14 insertions, 11 deletions

diff --git a/internal/fusefrontend_reverse/ino_map.go b/internal/fusefrontend_reverse/ino_map.go
index 5217732..9412343 100644
--- a/internal/fusefrontend_reverse/ino_map.go
+++ b/internal/fusefrontend_reverse/ino_map.go
@@ -4,7 +4,7 @@ import (
 	"sync/atomic"
 )
 
-func NewInoGen() *inoGenT {
+func newInoGen() *inoGenT {
 	var ino uint64 = 1
 	return &inoGenT{&ino}
 }
diff --git a/internal/fusefrontend_reverse/reverse_longnames.go b/internal/fusefrontend_reverse/reverse_longnames.go
index b3d21c9..5ad95b1 100644
--- a/internal/fusefrontend_reverse/reverse_longnames.go
+++ b/internal/fusefrontend_reverse/reverse_longnames.go
@@ -70,9 +70,9 @@ func (rfs *reverseFS) findLongnameParent(dir string, dirIV []byte, longname stri
 	}
 	if hit == "" {
 		return "", syscall.ENOENT
-	} else {
-		return hit, nil
 	}
+
+	return hit, nil
 }
 
 func (rfs *reverseFS) newNameFile(relPath string) (nodefs.File, fuse.Status) {
diff --git a/internal/fusefrontend_reverse/rfile.go b/internal/fusefrontend_reverse/rfile.go
index 2656b7b..5606e70 100644
--- a/internal/fusefrontend_reverse/rfile.go
+++ b/internal/fusefrontend_reverse/rfile.go
@@ -39,7 +39,7 @@ func (rfs *reverseFS) NewFile(relPath string, flags uint32) (nodefs.File, fuse.S
 	id := derivePathIV(relPath, ivPurposeFileID)
 	header := contentenc.FileHeader{
 		Version: contentenc.CurrentVersion,
-		Id:      id,
+		ID:      id,
 	}
 	return &reverseFile{
 		File:       nodefs.NewDefaultFile(),
@@ -58,7 +58,7 @@ func (rf *reverseFile) GetAttr(*fuse.Attr) fuse.Status {
 
 // encryptBlocks - encrypt "plaintext" into a number of ciphertext blocks.
 // "plaintext" must already be block-aligned.
-func (rf *reverseFile) encryptBlocks(plaintext []byte, firstBlockNo uint64, fileId []byte, block0IV []byte) []byte {
+func (rf *reverseFile) encryptBlocks(plaintext []byte, firstBlockNo uint64, fileID []byte, block0IV []byte) []byte {
 	nonce := make([]byte, len(block0IV))
 	copy(nonce, block0IV)
 	block0IVlow := binary.BigEndian.Uint64(block0IV[8:])
@@ -70,7 +70,7 @@ func (rf *reverseFile) encryptBlocks(plaintext []byte, firstBlockNo uint64, file
 	for blockNo := firstBlockNo; inBuf.Len() > 0; blockNo++ {
 		binary.BigEndian.PutUint64(nonceLow, block0IVlow+blockNo)
 		inBlock := inBuf.Next(bs)
-		outBlock := rf.contentEnc.EncryptBlockNonce(inBlock, blockNo, fileId, nonce)
+		outBlock := rf.contentEnc.EncryptBlockNonce(inBlock, blockNo, fileID, nonce)
 		outBuf.Write(outBlock)
 	}
 	return outBuf.Bytes()
@@ -95,7 +95,7 @@ func (rf *reverseFile) readBackingFile(off uint64, length uint64) (out []byte, e
 	plaintext = plaintext[0:n]
 
 	// Encrypt blocks
-	ciphertext := rf.encryptBlocks(plaintext, blocks[0].BlockNo, rf.header.Id, rf.block0IV)
+	ciphertext := rf.encryptBlocks(plaintext, blocks[0].BlockNo, rf.header.ID, rf.block0IV)
 
 	// Crop down to the relevant part
 	lenHave := len(ciphertext)
@@ -118,7 +118,7 @@ func (rf *reverseFile) Read(buf []byte, ioff int64) (resultData fuse.ReadResult,
 	var header []byte
 
 	// Synthesize file header
-	if off < contentenc.HEADER_LEN {
+	if off < contentenc.HeaderLen {
 		header = rf.header.Pack()
 		// Truncate to requested part
 		end := int(off) + len(buf)
diff --git a/internal/fusefrontend_reverse/rfs.go b/internal/fusefrontend_reverse/rfs.go
index e49807b..ab65ba3 100644
--- a/internal/fusefrontend_reverse/rfs.go
+++ b/internal/fusefrontend_reverse/rfs.go
@@ -20,6 +20,7 @@ import (
 )
 
 const (
+	// DirIVMode is the mode to use for Dir IV files.
 	DirIVMode = syscall.S_IFREG | 0400
 )
 
@@ -42,8 +43,10 @@ type reverseFS struct {
 	inoMapLock sync.Mutex
 }
 
-// Encrypted FUSE overlay filesystem
-func NewFS(args fusefrontend.Args) *reverseFS {
+var _ pathfs.FileSystem = &reverseFS{}
+
+// NewFS returns an encrypted FUSE overlay filesystem
+func NewFS(args fusefrontend.Args) pathfs.FileSystem {
 	cryptoCore := cryptocore.New(args.Masterkey, args.CryptoBackend, contentenc.DefaultIVBits)
 	contentEnc := contentenc.New(cryptoCore, contentenc.DefaultBS)
 	nameTransform := nametransform.New(cryptoCore, args.LongNames)
@@ -55,7 +58,7 @@ func NewFS(args fusefrontend.Args) *reverseFS {
 		args:          args,
 		nameTransform: nameTransform,
 		contentEnc:    contentEnc,
-		inoGen:        NewInoGen(),
+		inoGen:        newInoGen(),
 		inoMap:        map[devIno]uint64{},
 	}
 }