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authorJaegeuk Kim <jaegeuk@kernel.org>2015-04-29 17:02:18 -0700
committerJaegeuk Kim <jaegeuk@kernel.org>2015-05-28 15:41:55 -0700
commite7d5545285ededcf73dc7cbb9b7c65d0259f2b44 (patch)
treee326305090c249a5cfe26e1347bc63cba6ba898d /fs/f2fs/recovery.c
parent6e22c691ba0a63ba89f516f0bf1828cf6dce372d (diff)
downloadop-kernel-dev-e7d5545285ededcf73dc7cbb9b7c65d0259f2b44.zip
op-kernel-dev-e7d5545285ededcf73dc7cbb9b7c65d0259f2b44.tar.gz
f2fs crypto: add filename encryption for roll-forward recovery
This patch adds a bit flag to indicate whether or not i_name in the inode is encrypted. If this name is encrypted, we can't do recover_dentry during roll-forward. So, f2fs_sync_file() needs to do checkpoint, if this will be needed in future. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/recovery.c')
-rw-r--r--fs/f2fs/recovery.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index f77a1be..9de2587 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -83,6 +83,11 @@ static int recover_dentry(struct inode *inode, struct page *ipage)
goto out;
}
+ if (file_enc_name(inode)) {
+ iput(dir);
+ return 0;
+ }
+
name.len = le32_to_cpu(raw_inode->i_namelen);
name.name = raw_inode->i_name;
@@ -143,6 +148,7 @@ out:
static void recover_inode(struct inode *inode, struct page *page)
{
struct f2fs_inode *raw = F2FS_INODE(page);
+ char *name;
inode->i_mode = le16_to_cpu(raw->i_mode);
i_size_write(inode, le64_to_cpu(raw->i_size));
@@ -153,8 +159,13 @@ static void recover_inode(struct inode *inode, struct page *page)
inode->i_ctime.tv_nsec = le32_to_cpu(raw->i_ctime_nsec);
inode->i_mtime.tv_nsec = le32_to_cpu(raw->i_mtime_nsec);
+ if (file_enc_name(inode))
+ name = "<encrypted>";
+ else
+ name = F2FS_INODE(page)->i_name;
+
f2fs_msg(inode->i_sb, KERN_NOTICE, "recover_inode: ino = %x, name = %s",
- ino_of_node(page), F2FS_INODE(page)->i_name);
+ ino_of_node(page), name);
}
static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
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