1 files changed, 11 insertions, 1 deletions

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index da099225b1a9..4cb4ced258cb 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -163,9 +163,15 @@ struct smb2_negotiate_req {
         __le32 Capabilities;
         __u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
         __le64 ClientStartTime; /* MBZ */
-        __le16 Dialects[2]; /* variable length */
+        __le16 Dialects[1]; /* One dialect (vers=) at a time for now */
 } __packed;
 
+/* Dialects */
+#define SMB20_PROT_ID 0x0202
+#define SMB21_PROT_ID 0x0210
+#define SMB30_PROT_ID 0x0300
+#define BAD_PROT_ID   0xFFFF
+
 /* SecurityMode flags */
 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
@@ -173,6 +179,10 @@ struct smb2_negotiate_req {
 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
+#define SMB2_GLOBAL_CAP_MULTI_CHANNEL   0x00000008 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_ENCRYPTION      0x00000040 /* New to SMB3 */
 /* Internal types */
 #define SMB2_NT_FIND                    0x00100000
 #define SMB2_LARGE_FILES                0x00200000