CIFS: Add session setup/logoff capability for SMB2

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index ef8dae213f60..26af68b2955a 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -187,4 +187,41 @@ struct smb2_negotiate_rsp {
         __u8   Buffer[1];       /* variable length GSS security buffer */
 } __packed;
 
+struct smb2_sess_setup_req {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 25 */
+        __u8   VcNumber;
+        __u8   SecurityMode;
+        __le32 Capabilities;
+        __le32 Channel;
+        __le16 SecurityBufferOffset;
+        __le16 SecurityBufferLength;
+        __le64 PreviousSessionId;
+        __u8   Buffer[1];       /* variable length GSS security buffer */
+} __packed;
+
+/* Currently defined SessionFlags */
+#define SMB2_SESSION_FLAG_IS_GUEST      0x0001
+#define SMB2_SESSION_FLAG_IS_NULL       0x0002
+struct smb2_sess_setup_rsp {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 9 */
+        __le16 SessionFlags;
+        __le16 SecurityBufferOffset;
+        __le16 SecurityBufferLength;
+        __u8   Buffer[1];       /* variable length GSS security buffer */
+} __packed;
+
+struct smb2_logoff_req {
+        struct smb2_hdr hdr;
+        __le16 StructureSize;   /* Must be 4 */
+        __le16 Reserved;
+} __packed;
+
+struct smb2_logoff_rsp {
+        struct smb2_hdr hdr;
+        __le16 StructureSize;   /* Must be 4 */
+        __le16 Reserved;
+} __packed;
+
 #endif                          /* _SMB2PDU_H */