Tyler Hicks 073b1bc26c eCryptfs: Force RO mount when encrypted view is enabled ... commit 332b122d39c9cbff8b799007a825d94b2e7c12f2 upstream. The ecryptfs_encrypted_view mount option greatly changes the functionality of an eCryptfs mount. Instead of encrypting and decrypting lower files, it provides a unified view of the encrypted files in the lower filesystem. The presence of the ecryptfs_encrypted_view mount option is intended to force a read-only mount and modifying files is not supported when the feature is in use. See the following commit for more information: e77a56d [PATCH] eCryptfs: Encrypted passthrough This patch forces the mount to be read-only when the ecryptfs_encrypted_view mount option is specified by setting the MS_RDONLY flag on the superblock. Additionally, this patch removes some broken logic in ecryptfs_open() that attempted to prevent modifications of files when the encrypted view feature was in use. The check in ecryptfs_open() was not sufficient to prevent file modifications using system calls that do not operate on a file descriptor. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Priya Bansal <p.bansal@samsung.com> [lizf: Backported to 3.4: adjust context] Signed-off-by: Zefan Li <lizefan@huawei.com>		2015-04-14 17:33:40 +08:00
..
crypto.c	eCryptfs: Improve statfs reporting	2012-02-16 16:06:21 -06:00
debug.c
dentry.c	eCryptfs: Handle NULL nameidata pointers	2011-02-21 14:45:57 -06:00
ecryptfs_kernel.h	eCryptfs: Initialize empty lower files when opening them	2012-10-21 09:28:01 -07:00
file.c	eCryptfs: Force RO mount when encrypted view is enabled	2015-04-14 17:33:40 +08:00
inode.c	ecryptfs: avoid to access NULL pointer when write metadata in xattr	2015-02-02 17:04:47 +08:00
Kconfig	eCryptfs: fix compile error	2011-08-09 13:42:46 -05:00
keystore.c	ecryptfs: Fix memory leakage in keystore.c	2014-06-07 16:02:04 -07:00
kthread.c	eCryptfs: Properly check for O_RDONLY flag before doing privileged open	2012-07-16 09:04:26 -07:00
main.c	eCryptfs: Force RO mount when encrypted view is enabled	2015-04-14 17:33:40 +08:00
Makefile
messaging.c	ecryptfs: properly mark init functions	2010-08-27 10:50:52 -05:00
miscdev.c	eCryptfs: Fix lockdep warning in miscdev operations	2012-07-16 09:04:26 -07:00
mmap.c	eCryptfs: Revert to a writethrough cache model	2012-10-21 09:28:01 -07:00
read_write.c	ecryptfs: remove the second argument of k[un]map_atomic()	2012-02-16 16:06:27 -06:00
super.c	ecryptfs: don't bother with ->drop_inode()	2012-03-20 21:29:33 -04:00