cifs: update FSCTL definitions

Add some missing defines used by ksmbd to the client
version of smbfsctl.h, and add a missing newer define
mentioned in the protocol definitions (MS-FSCC).

This will also make it easier to move to common code.

Reviewed-by: Ronnie Sahlberg <[email protected]>
Signed-off-by: Steve French <[email protected]>

Author: smfrench

fs/cifs/smbfsctl.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1 */
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  *   fs/cifs/smbfsctl.h: SMB, CIFS, SMB2 FSCTL definitions
  *
@@ -19,11 +19,14 @@
  * could be invoked from tools via a specialized hook into the VFS rather
  * than via the standard vfs entry points
  *
- * See MS-SMB2 Section 2.2.31 (last checked June 2013, all of that list are
+ * See MS-SMB2 Section 2.2.31 (last checked September 2021, all of that list are
  * below). Additional detail on less common ones can be found in MS-FSCC
  * section 2.3.
  */
 
+#ifndef __SMBFSCTL_H
+#define __SMBFSCTL_H
+
 /*
  * FSCTL values are 32 bits and are constructed as
  * <device 16bits> <access 2bits> <function 12bits> <method 2bits>
@@ -91,6 +94,7 @@
 #define FSCTL_SET_ZERO_ON_DEALLOC    0x00090194 /* BB add struct */
 #define FSCTL_SET_SHORT_NAME_BEHAVIOR 0x000901B4 /* BB add struct */
 #define FSCTL_GET_INTEGRITY_INFORMATION 0x0009027C
+#define FSCTL_GET_REFS_VOLUME_DATA   0x000902D8 /* See MS-FSCC 2.3.24 */
 #define FSCTL_GET_RETRIEVAL_POINTERS_AND_REFCOUNT 0x000903d3
 #define FSCTL_GET_RETRIEVAL_POINTER_COUNT 0x0009042b
 #define FSCTL_QUERY_ALLOCATED_RANGES 0x000940CF
@@ -146,7 +150,13 @@
 #define IO_REPARSE_TAG_LX_CHR	     0x80000025
 #define IO_REPARSE_TAG_LX_BLK	     0x80000026
 
+#define IO_REPARSE_TAG_LX_SYMLINK_LE	cpu_to_le32(0xA000001D)
+#define IO_REPARSE_TAG_AF_UNIX_LE	cpu_to_le32(0x80000023)
+#define IO_REPARSE_TAG_LX_FIFO_LE	cpu_to_le32(0x80000024)
+#define IO_REPARSE_TAG_LX_CHR_LE	cpu_to_le32(0x80000025)
+#define IO_REPARSE_TAG_LX_BLK_LE	cpu_to_le32(0x80000026)
+
 /* fsctl flags */
 /* If Flags is set to this value, the request is an FSCTL not ioctl request */
 #define SMB2_0_IOCTL_IS_FSCTL		0x00000001
-
+#endif /* __SMBFSCTL_H */