CIFS: Add capability to send SMB2 negotiate message

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / cifs / smb2pdu.h

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index b08a277df8961ecfa6bf5208c9e43830b55b4c82..ef8dae213f608763cd1231675eb76f29b7b84212 100644 (file)
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -148,4 +148,43 @@ struct smb2_err_rsp {
        __u8   ErrorData[1];  /* variable length */
 } __packed;
 
+struct smb2_negotiate_req {
+       struct smb2_hdr hdr;
+       __le16 StructureSize; /* Must be 36 */
+       __le16 DialectCount;
+       __le16 SecurityMode;
+       __le16 Reserved;        /* MBZ */
+       __le32 Capabilities;
+       __u8   ClientGUID[16];  /* MBZ */
+       __le64 ClientStartTime; /* MBZ */
+       __le16 Dialects[2]; /* variable length */
+} __packed;
+
+/* SecurityMode flags */
+#define        SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
+#define SMB2_NEGOTIATE_SIGNING_REQUIRED        0x0002
+/* Capabilities flags */
+#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 */
+
+struct smb2_negotiate_rsp {
+       struct smb2_hdr hdr;
+       __le16 StructureSize;   /* Must be 65 */
+       __le16 SecurityMode;
+       __le16 DialectRevision;
+       __le16 Reserved;        /* MBZ */
+       __u8   ServerGUID[16];
+       __le32 Capabilities;
+       __le32 MaxTransactSize;
+       __le32 MaxReadSize;
+       __le32 MaxWriteSize;
+       __le64 SystemTime;      /* MBZ */
+       __le64 ServerStartTime;
+       __le16 SecurityBufferOffset;
+       __le16 SecurityBufferLength;
+       __le32 Reserved2;       /* may be any value, ignore */
+       __u8   Buffer[1];       /* variable length GSS security buffer */
+} __packed;
+
 #endif                         /* _SMB2PDU_H */