diff options
Diffstat (limited to 'internal/nametransform/diriv.go')
| -rw-r--r-- | internal/nametransform/diriv.go | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/internal/nametransform/diriv.go b/internal/nametransform/diriv.go index 1a72d2a..81e44da 100644 --- a/internal/nametransform/diriv.go +++ b/internal/nametransform/diriv.go @@ -44,8 +44,8 @@ func ReadDirIV(dir string) (iv []byte, err error) { // ReadDirIVAt reads "gocryptfs.diriv" from the directory that is opened as "dirfd". // Using the dirfd makes it immune to concurrent renames of the directory. -func ReadDirIVAt(dirfd *os.File) (iv []byte, err error) { - fdRaw, err := syscallcompat.Openat(int(dirfd.Fd()), DirIVFilename, +func ReadDirIVAt(dirfd int) (iv []byte, err error) { + fdRaw, err := syscallcompat.Openat(dirfd, DirIVFilename, syscall.O_RDONLY|syscall.O_NOFOLLOW, 0) if err != nil { return nil, fmt.Errorf("openat failed: %v", err) @@ -82,16 +82,16 @@ func fdReadDirIV(fd *os.File) (iv []byte, err error) { // "dir" should be a path (without slashes) relative to the directory // described by "dirfd". This function is exported because it is used from // pathfs_frontend, main, and also the automated tests. -func WriteDirIV(dirfd *os.File, dir string) error { +func WriteDirIV(dirfd int, dir string) error { // For relative paths we do not expect that "dir" contains slashes - if dirfd != nil && strings.Contains(dir, "/") { + if dirfd >= 0 && strings.Contains(dir, "/") { log.Panicf("WriteDirIV: Relative path should not contain slashes: %v", dir) } iv := cryptocore.RandBytes(DirIVLen) file := filepath.Join(dir, DirIVFilename) // 0400 permissions: gocryptfs.diriv should never be modified after creation. // Don't use "ioutil.WriteFile", it causes trouble on NFS: https://github.com/rfjakob/gocryptfs/issues/105 - fdRaw, err := syscallcompat.Openat(int(dirfd.Fd()), file, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0400) + fdRaw, err := syscallcompat.Openat(dirfd, file, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0400) if err != nil { tlog.Warn.Printf("WriteDirIV: Openat: %v", err) return err @@ -105,14 +105,14 @@ func WriteDirIV(dirfd *os.File, dir string) error { tlog.Warn.Printf("WriteDirIV: Write: %v", err) } // Delete incomplete gocryptfs.diriv file - syscallcompat.Unlinkat(int(dirfd.Fd()), file, 0) + syscallcompat.Unlinkat(dirfd, file, 0) return err } err = fd.Close() if err != nil { tlog.Warn.Printf("WriteDirIV: Close: %v", err) // Delete incomplete gocryptfs.diriv file - syscallcompat.Unlinkat(int(dirfd.Fd()), file, 0) + syscallcompat.Unlinkat(dirfd, file, 0) return err } return nil |