[PATCH] ecryptfs: fs/Makefile and fs/Kconfig

eCryptfs is a stacked cryptographic filesystem for Linux.  It is derived from
Erez Zadok's Cryptfs, implemented through the FiST framework for generating
stacked filesystems.  eCryptfs extends Cryptfs to provide advanced key
management and policy features.  eCryptfs stores cryptographic metadata in the
header of each file written, so that encrypted files can be copied between
hosts; the file will be decryptable with the proper key, and there is no need
to keep track of any additional information aside from what is already in the
encrypted file itself.

[akpm@osdl.org: updates for ongoing API changes]
[bunk@stusta.de: cleanups]
[akpm@osdl.org: alpha build fix]
[akpm@osdl.org: cleanups]
[tytso@mit.edu: inode-diet updates]
[pbadari@us.ibm.com: generic_file_*_read/write() interface updates]
[rdunlap@xenotime.net: printk format fixes]
[akpm@osdl.org: make slab creation and teardown table-driven]
Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net>
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index 68f4561423ff..674cfbb83a95 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -995,6 +995,18 @@ config AFFS_FS
           To compile this file system support as a module, choose M here: the
           module will be called affs.  If unsure, say N.
 
+config ECRYPT_FS
+        tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
+        depends on EXPERIMENTAL && KEYS && CRYPTO
+        help
+          Encrypted filesystem that operates on the VFS layer.  See
+          <file:Documentation/ecryptfs.txt> to learn more about
+          eCryptfs.  Userspace components are required and can be
+          obtained from <http://ecryptfs.sf.net>.
+
+          To compile this file system support as a module, choose M here: the
+          module will be called ecryptfs.
+
 config HFS_FS
         tristate "Apple Macintosh file system support (EXPERIMENTAL)"
         depends on BLOCK && EXPERIMENTAL