Michael Halcrow e4465fdaeb eCryptfs: make ecryptfs_prepare_write decrypt the page ... When the page is not up to date, ecryptfs_prepare_write() should be acting much like ecryptfs_readpage(). This includes the painfully obvious step of actually decrypting the page contents read from the lower encrypted file. Note that this patch resolves a bug in eCryptfs in 2.6.24 that one can produce with these steps: # mount -t ecryptfs /secret /secret # echo "abc" > /secret/file.txt # umount /secret # mount -t ecryptfs /secret /secret # echo "def" >> /secret/file.txt # cat /secret/file.txt Without this patch, the resulting data returned from cat is likely to be something other than "abc\ndef\n". (Thanks to Benedikt Driessen for reporting this.) Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Benedikt Driessen <bdriessen@escrypt.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-03-04 16:35:16 -08:00
..
crypto.c
debug.c
dentry.c	Embed a struct path into struct nameidata instead of nd->{dentry,mnt}	2008-02-14 21:13:33 -08:00
ecryptfs_kernel.h
file.c
inode.c	Embed a struct path into struct nameidata instead of nd->{dentry,mnt}	2008-02-14 21:13:33 -08:00
keystore.c
main.c	Introduce path_put()	2008-02-14 21:13:33 -08:00
Makefile
messaging.c
mmap.c	eCryptfs: make ecryptfs_prepare_write decrypt the page	2008-03-04 16:35:16 -08:00
netlink.c
read_write.c
super.c