diff options
Diffstat (limited to 'internal/nametransform/diriv.go')
| -rw-r--r-- | internal/nametransform/diriv.go | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/internal/nametransform/diriv.go b/internal/nametransform/diriv.go index b45ae52..c2b9bb1 100644 --- a/internal/nametransform/diriv.go +++ b/internal/nametransform/diriv.go @@ -121,7 +121,7 @@ func WriteDirIV(dirfd int, dir string) error { // encryptAndHashName encrypts "name" and hashes it to a longname if it is // too long. -func (be *NameTransform) encryptAndHashName(name string, iv []byte) string { +func (be *NameTransform) EncryptAndHashName(name string, iv []byte) string { cName := be.EncryptName(name, iv) if be.longNames && len(cName) > unix.NAME_MAX { return be.HashLongName(cName) @@ -132,6 +132,9 @@ func (be *NameTransform) encryptAndHashName(name string, iv []byte) string { // EncryptPathDirIV - encrypt relative plaintext path "plainPath" using EME with // DirIV. "rootDir" is the backing storage root directory. // Components that are longer than 255 bytes are hashed if be.longnames == true. +// +// TODO: EncryptPathDirIV is NOT SAFE against symlink races. This function +// should eventually be deleted. func (be *NameTransform) EncryptPathDirIV(plainPath string, rootDir string) (string, error) { var err error // Empty string means root directory @@ -148,7 +151,7 @@ func (be *NameTransform) EncryptPathDirIV(plainPath string, rootDir string) (str // in the tar extract benchmark. parentDir := Dir(plainPath) if iv, cParentDir := be.DirIVCache.Lookup(parentDir); iv != nil { - cBaseName := be.encryptAndHashName(baseName, iv) + cBaseName := be.EncryptAndHashName(baseName, iv) return filepath.Join(cParentDir, cBaseName), nil } // We have to walk the directory tree, starting at the root directory. @@ -166,7 +169,7 @@ func (be *NameTransform) EncryptPathDirIV(plainPath string, rootDir string) (str } be.DirIVCache.Store(plainWD, iv, cipherWD) } - cipherName := be.encryptAndHashName(plainName, iv) + cipherName := be.EncryptAndHashName(plainName, iv) cipherWD = filepath.Join(cipherWD, cipherName) plainWD = filepath.Join(plainWD, plainName) } |