Tyler Hicks 332b122d39 eCryptfs: Force RO mount when encrypted view is enabled ... 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> Cc: stable@vger.kernel.org # v2.6.21+: e77a56d [PATCH] eCryptfs: Encrypted passthrough		2014-10-23 09:11:03 -04:00
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crypto.c	tree-wide: use reinit_completion instead of INIT_COMPLETION	2013-11-15 09:32:21 +09:00
debug.c	eCryptfs: update comment and debug statement	2007-10-16 09:43:11 -07:00
dentry.c	ecryptfs: ->lower_path.dentry is never NULL	2013-10-24 23:34:48 -04:00
ecryptfs_kernel.h	ecryptfs: get rid of ecryptfs_set_dentry_lower{,_mnt}	2013-10-24 23:34:48 -04:00
file.c	eCryptfs: Force RO mount when encrypted view is enabled	2014-10-23 09:11:03 -04:00
inode.c	Minor code cleanups and a fix for when eCryptfs metadata is stored in xattrs	2014-10-11 08:01:27 -04:00
Kconfig	Minor code cleanups and new Kconfig option to disable /dev/ecryptfs	2013-03-07 12:47:24 -08:00
keystore.c	ecryptfs: remove unnecessary break after goto	2014-07-14 14:29:11 -05:00
kthread.c	eCryptfs: fix to use list_for_each_entry_safe() when delete items	2012-12-18 10:07:29 -06:00
main.c	eCryptfs: Force RO mount when encrypted view is enabled	2014-10-23 09:11:03 -04:00
Makefile	eCryptfs: allow userspace messaging to be disabled	2013-03-03 23:59:59 -08:00
messaging.c	fs/ecryptfs/messaging.c: remove null test before kfree	2014-07-03 16:38:09 -05:00
miscdev.c	ecryptfs: close rmmod race	2013-04-09 14:08:16 -04:00
mmap.c	eCryptfs: Avoid unnecessary disk read and data decryption during writing	2012-11-07 17:56:16 -08:00
read_write.c	ecryptfs: don't open-code kernel_read()	2013-05-09 13:39:58 -04:00
super.c	mm + fs: store shadow entries in page cache	2014-04-03 16:21:01 -07:00