[PATCH v17 65/71] ceph: prevent snapshots to be created in encrypted locked directories

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Luís Henriques <lhenriques@xxxxxxx>

With snapshot names encryption we can not allow snapshots to be created in
locked directories because the names wouldn't be encrypted.  This patch
forces the directory to be unlocked to allow a snapshot to be created.

Signed-off-by: Luís Henriques <lhenriques@xxxxxxx>
Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/ceph/dir.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 98a9b1592ba6..fe48a5d26c1d 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1084,6 +1084,11 @@ static int ceph_mkdir(struct mnt_idmap *idmap, struct inode *dir,
 		err = -EDQUOT;
 		goto out;
 	}
+	if ((op == CEPH_MDS_OP_MKSNAP) && IS_ENCRYPTED(dir) &&
+	    !fscrypt_has_encryption_key(dir)) {
+		err = -ENOKEY;
+		goto out;
+	}
 
 
 	req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS);
-- 
2.31.1




[Index of Archives]     [CEPH Users]     [Ceph Large]     [Ceph Dev]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux