From 37a52ceb9b7b6e098846472e1b81ee95bfc0f6cb Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Sun, 8 Oct 2023 23:11:38 -0500
Subject: [PATCH] SMB3: clarify some of the unused CreateOption flags
Update comments to show flags which should be not set (zero).
See MS-SMB2 section 2.2.13
Signed-off-by: Steve French <stfrench@microsoft.com>
---
fs/smb/common/smb2pdu.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
@@ -1112,16 +1112,23 @@ struct smb2_server_client_notification {
#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
#define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
+/* FILE_SYNCHRONOUS_IO_ALERT_LE cpu_to_le32(0x00000010) should be zero, ignored */
+/* FILE_SYNCHRONOUS_IO_NONALERT cpu_to_le32(0x00000020) should be zero, ignored */
#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
+/* FILE_OPEN_REMOTE_INSTANcE cpu_to_le32(0x00000400) should be zero, ignored */
#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
-#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
+#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000) /* MBZ */
#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
+/* FILE_OPEN_REQUIRING_OPLOCK cpu_to_le32(0x00010000) should be zero, ignored */
+/* FILE_DISALLOW_EXCLUSIVE cpu_to_le32(0x00020000) should be zero, ignored */
+/* FILE_RESERVE_OPFILTER cpu_to_le32(0x00100000) MBZ */
#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
+/* #define FILE_OPEN_FOR_FREE_SPACE_QUERY cpu_to_le32(0x00800000) should be zero, ignored */
#define CREATE_OPTIONS_MASK_LE cpu_to_le32(0x00FFFFFF)
#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
--
2.39.2