From f424f664f0e8949361d268e2e91c7acc8cf63eb2 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Mon, 20 Apr 2015 15:19:06 -0700 Subject: f2fs crypto: add encryption policy and password salt support This patch adds encryption policy and password salt support through ioctl implementation. It adds three ioctls: F2FS_IOC_SET_ENCRYPTION_POLICY, F2FS_IOC_GET_ENCRYPTION_POLICY, F2FS_IOC_GET_ENCRYPTION_PWSALT, which use xattr operations. Note that, these definition and codes are taken from ext4 crypto support. For f2fs, xattr operations and on-disk flags for superblock and inode were changed. Signed-off-by: Michael Halcrow Signed-off-by: Theodore Ts'o Signed-off-by: Ildar Muslukhov Signed-off-by: Jaegeuk Kim --- fs/f2fs/xattr.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/f2fs/xattr.c') diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 9757f65a05bc..07449b980acb 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -584,6 +584,9 @@ static int __f2fs_setxattr(struct inode *inode, int index, inode->i_ctime = CURRENT_TIME; clear_inode_flag(fi, FI_ACL_MODE); } + if (index == F2FS_XATTR_INDEX_ENCRYPTION && + !strcmp(name, F2FS_XATTR_NAME_ENCRYPTION_CONTEXT)) + f2fs_set_encrypted_inode(inode); if (ipage) update_inode(inode, ipage); -- cgit v1.2.3-59-g8ed1b