smb3: Add defines for new information level, FileIdInformation

See MS-FSCC 2.4.43.  Valid to be quried from most
Windows servers (among others).

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index ca2123d..fa03df1 100644 (file)
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -1519,6 +1519,7 @@ struct smb3_fs_vol_info {
 #define FILE_NORMALIZED_NAME_INFORMATION 48
 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
 #define FILE_STANDARD_LINK_INFORMATION 54
+#define FILE_ID_INFORMATION            59
 
 struct smb2_file_internal_info {
        __le64 IndexNumber;
@@ -1593,6 +1594,13 @@ struct smb2_file_network_open_info {
        __le32 Reserved;
 } __packed; /* level 34 Query also similar returned in close rsp and open rsp */
 
+/* See MS-FSCC 2.4.43 */
+struct smb2_file_id_information {
+       __le64  VolumeSerialNumber;
+       __u64  PersistentFileId; /* opaque endianness */
+       __u64  VolatileFileId; /* opaque endianness */
+} __packed; /* level 59 */
+
 extern char smb2_padding[7];
 
 /* equivalent of the contents of SMB3.1.1 POSIX open context response */