linux-hardened/fs/ecryptfs
Tyler Hicks 4a26620df4 eCryptfs: Improve statfs reporting
statfs() calls on eCryptfs files returned the wrong filesystem type and,
when using filename encryption, the wrong maximum filename length.

If mount-wide filename encryption is enabled, the cipher block size and
the lower filesystem's max filename length will determine the max
eCryptfs filename length. Pre-tested, known good lengths are used when
the lower filesystem's namelen is 255 and a cipher with 8 or 16 byte
block sizes is used. In other, less common cases, we fall back to a safe
rounded-down estimate when determining the eCryptfs namelen.

https://launchpad.net/bugs/885744

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: John Johansen <john.johansen@canonical.com>
2012-02-16 16:06:21 -06:00
..
crypto.c eCryptfs: Improve statfs reporting 2012-02-16 16:06:21 -06:00
debug.c eCryptfs: update comment and debug statement 2007-10-16 09:43:11 -07:00
dentry.c eCryptfs: Handle NULL nameidata pointers 2011-02-21 14:45:57 -06:00
ecryptfs_kernel.h eCryptfs: Improve statfs reporting 2012-02-16 16:06:21 -06:00
file.c eCryptfs: Flush file in vma close 2011-11-23 15:40:09 -06:00
inode.c eCryptfs: Check inode changes in setattr 2012-01-25 14:43:41 -06:00
Kconfig eCryptfs: fix compile error 2011-08-09 13:42:46 -05:00
keystore.c eCryptfs: Improve statfs reporting 2012-02-16 16:06:21 -06:00
kthread.c eCryptfs: Add reference counting to lower files 2011-04-25 18:32:37 -05:00
main.c Ecryptfs: Add mount option to check uid of device being mounted = expect uid 2011-08-09 23:29:01 -05:00
Makefile eCryptfs: remove netlink transport 2008-10-16 11:21:39 -07:00
messaging.c ecryptfs: properly mark init functions 2010-08-27 10:50:52 -05:00
miscdev.c eCryptfs: Replace miscdev read/write magic numbers 2012-01-25 14:43:40 -06:00
mmap.c eCryptfs: move misleading function comments 2012-01-25 15:10:53 -08:00
read_write.c eCryptfs: Remove unused ecryptfs_read() 2012-01-25 14:43:41 -06:00
super.c eCryptfs: Improve statfs reporting 2012-02-16 16:06:21 -06:00