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authorRichard Weinberger <richard@nod.at>2016-09-29 20:10:06 +0200
committerRichard Weinberger <richard@nod.at>2016-12-12 23:07:38 +0100
commit9270b2f4cd9d903ed638c6cb93206baf458bdf46 (patch)
tree75e84b03ed124ffd24346bad66c1a5c5153afb2c /fs/ubifs
parentubifs: Enforce crypto policy in ->link and ->rename (diff)
downloadlinux-9270b2f4cd9d903ed638c6cb93206baf458bdf46.tar.xz
linux-9270b2f4cd9d903ed638c6cb93206baf458bdf46.zip
ubifs: Preload crypto context in ->lookup()
...and mark the dentry as encrypted. Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/dir.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index bd0af4e9ca0b..9976a709b875 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -218,6 +218,21 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);
+ if (ubifs_crypt_is_encrypted(dir)) {
+ err = fscrypt_get_encryption_info(dir);
+
+ /*
+ * DCACHE_ENCRYPTED_WITH_KEY is set if the dentry is
+ * created while the directory was encrypted and we
+ * have access to the key.
+ */
+ if (fscrypt_has_encryption_key(dir))
+ fscrypt_set_encrypted_dentry(dentry);
+ fscrypt_set_d_op(dentry);
+ if (err && err != -ENOKEY)
+ return ERR_PTR(err);
+ }
+
if (dentry->d_name.len > UBIFS_MAX_NLEN)
return ERR_PTR(-ENAMETOOLONG);