kernel-packages team mailing list archive

[Rocko <rockorequin@xxxxxxxxxxx>]

ecryptfs_unlocked_ioctl gets passed the (higher) target file struct as
the first argument, the command as the second, and the source file
descriptor as the third argument. It looks like the source file
descriptor has already been converted to the lower file if it is
associated with a higher file inside an ecryptfs mount. This makes it
harder to compare the mountpoints of the source and target to see if the
clone should be allowed - you'd need to figure out if the source file
descriptor is associated with a higher file then compare that higher
file with the (higher) target file to see if they have the same
mountpoint. I'm not sure how to do that - there aren't many comments in
the ecryptfs code.

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https://bugs.launchpad.net/bugs/1305335

Title:
  Cutting or copying files on btrfs to ecryptfs results in data loss

Status in eCryptfs:
  Confirmed
Status in The Linux Kernel:
  Unknown
Status in linux package in Ubuntu:
  Confirmed
Status in nautilus package in Ubuntu:
  Invalid

Bug description:
  I've installed a fresh copy of 14.04 beta 2 on a brand-new SSD.  I
  used btrfs as the filesystem.

  I set up a Private folder usying ecryptfs-setup-private.

  I copied a few folders into the Private folder, and the entire
  directory structure and subfolders are copied, including the files
  themselves, yet every file contains 0 bytes.

  However, I can create and save new files in the Private directory.
  Also, folders and files can be correctly copied if I use the command line cp -R.

  Thanks,
  Damon

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: nautilus 1:3.10.1-0ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
  Uname: Linux 3.13.0-23-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Apr  9 18:12:56 2014
  EcryptfsInUse: Yes
  GsettingsChanges: b'org.gnome.nautilus.list-view' b'default-column-order' b"['name', 'size', 'type', 'date_modified', 'date_accessed', 'owner', 'group', 'permissions', 'mime_type', 'where']"
  InstallationDate: Installed on 2014-04-05 (4 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: nautilus
  UpgradeStatus: No upgrade log present (probably fresh install)

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