linux-stable/fs/ecryptfs
Tyler Hicks 2ecaf55db6 eCryptfs: Make all miscdev functions use daemon ptr in file private_data
Now that a pointer to a valid struct ecryptfs_daemon is stored in the
private_data of an opened /dev/ecryptfs file, the remaining miscdev
functions can utilize the pointer rather than looking up the
ecryptfs_daemon at the beginning of each operation.

The security model of /dev/ecryptfs is simplified a little bit with this
patch. Upon opening /dev/ecryptfs, a per-user ecryptfs_daemon is
registered. Another daemon cannot be registered for that user until the
last file reference is released. During the lifetime of the
ecryptfs_daemon, access checks are not performed on the /dev/ecryptfs
operations because it is assumed that the application securely handles
the opened file descriptor and does not unintentionally leak it to
processes that are not trusted.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Sasha Levin <levinsasha928@gmail.com>
2012-07-08 12:51:44 -05:00
..
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: Make all miscdev functions use daemon ptr in file private_data 2012-07-08 12:51:44 -05:00
file.c switch touch_atime to struct path 2012-03-20 21:29:41 -04:00
inode.c get rid of pointless allocations and copying in ecryptfs_follow_link() 2012-05-29 23:28:40 -04:00
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: Properly check for O_RDONLY flag before doing privileged open 2012-07-03 16:34:09 -07:00
main.c eCryptfs: Copy up POSIX ACL and read-only flags from lower mount 2012-07-08 12:51:43 -05:00
Makefile eCryptfs: remove netlink transport 2008-10-16 11:21:39 -07:00
messaging.c eCryptfs: Make all miscdev functions use daemon ptr in file private_data 2012-07-08 12:51:44 -05:00
miscdev.c eCryptfs: Make all miscdev functions use daemon ptr in file private_data 2012-07-08 12:51:44 -05:00
mmap.c ecryptfs: remove the second argument of k[un]map_atomic() 2012-02-16 16:06:27 -06:00
read_write.c ecryptfs: remove the second argument of k[un]map_atomic() 2012-02-16 16:06:27 -06:00
super.c vfs: Rename end_writeback() to clear_inode() 2012-05-06 13:43:41 +08:00