Commit b7d7ba31 authored by Steve French's avatar Steve French Committed by Greg Kroah-Hartman

remove directory incorrectly tries to set delete on close on non-empty directories

commit 897fba11 upstream.

Wrong return code was being returned on SMB3 rmdir of
non-empty directory.

For SMB3 (unlike for cifs), we attempt to delete a directory by
set of delete on close flag on the open. Windows clients set
this flag via a set info (SET_FILE_DISPOSITION to set this flag)
which properly checks if the directory is empty.

With this patch on smb3 mounts we correctly return
 "DIRECTORY NOT EMPTY"
on attempts to remove a non-empty directory.
Signed-off-by: default avatarSteve French <steve.french@primarydata.com>
Acked-by: default avatarSachin Prabhu <sprabhu@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6ff3df20
......@@ -44,6 +44,7 @@
#define SMB2_OP_DELETE 7
#define SMB2_OP_HARDLINK 8
#define SMB2_OP_SET_EOF 9
#define SMB2_OP_RMDIR 10
/* Used when constructing chained read requests. */
#define CHAINED_REQUEST 1
......
......@@ -80,6 +80,10 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
* SMB2_open() call.
*/
break;
case SMB2_OP_RMDIR:
tmprc = SMB2_rmdir(xid, tcon, fid.persistent_fid,
fid.volatile_fid);
break;
case SMB2_OP_RENAME:
tmprc = SMB2_rename(xid, tcon, fid.persistent_fid,
fid.volatile_fid, (__le16 *)data);
......@@ -191,8 +195,8 @@ smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
struct cifs_sb_info *cifs_sb)
{
return smb2_open_op_close(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
CREATE_NOT_FILE | CREATE_DELETE_ON_CLOSE,
NULL, SMB2_OP_DELETE);
CREATE_NOT_FILE,
NULL, SMB2_OP_RMDIR);
}
int
......
......@@ -2576,6 +2576,22 @@ SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
int
SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid)
{
__u8 delete_pending = 1;
void *data;
unsigned int size;
data = &delete_pending;
size = 1; /* sizeof __u8 */
return send_set_info(xid, tcon, persistent_fid, volatile_fid,
current->tgid, FILE_DISPOSITION_INFORMATION, 1, &data,
&size);
}
int
SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
......
......@@ -140,6 +140,8 @@ extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
extern int SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid,
__le16 *target_file);
extern int SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid);
extern int SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid,
__le16 *target_file);
......
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