smb1pdu.h

 1/* SPDX-License-Identifier: LGPL-2.1 */
 2/*
 3 *
 4 *   Copyright (C) International Business Machines  Corp., 2002,2009
 5 *                 2018 Samsung Electronics Co., Ltd.
 6 *   Author(s): Steve French <sfrench@us.ibm.com>
 7 *              Namjae Jeon <linkinjeon@kernel.org>
 8 *
 9 */
10
11#ifndef _COMMON_SMB1_PDU_H
12#define _COMMON_SMB1_PDU_H
13
14#define SMB1_PROTO_NUMBER		cpu_to_le32(0x424d53ff)
15
16/*
17 * See MS-CIFS 2.2.3.1
18 *     MS-SMB 2.2.3.1
19 */
20struct smb_hdr {
21	__u8 Protocol[4];
22	__u8 Command;
23	union {
24		struct {
25			__u8 ErrorClass;
26			__u8 Reserved;
27			__le16 Error;
28		} __packed DosError;
29		__le32 CifsError;
30	} __packed Status;
31	__u8 Flags;
32	__le16 Flags2;		/* note: le */
33	__le16 PidHigh;
34	union {
35		struct {
36			__le32 SequenceNumber;  /* le */
37			__u32 Reserved; /* zero */
38		} __packed Sequence;
39		__u8 SecuritySignature[8];	/* le */
40	} __packed Signature;
41	__u8 pad[2];
42	__u16 Tid;
43	__le16 Pid;
44	__u16 Uid;
45	__le16 Mid;
46	__u8 WordCount;
47} __packed;
48
49/* See MS-CIFS 2.2.4.52.1 */
50typedef struct smb_negotiate_req {
51	struct smb_hdr hdr;	/* wct = 0 */
52	__le16 ByteCount;
53	unsigned char DialectsArray[];
54} __packed SMB_NEGOTIATE_REQ;
55
56#endif /* _COMMON_SMB1_PDU_H */