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linux-next/fs/cifs/smb2pdu.h
Steve French e4aa25e780 [CIFS] Fix SMB2 negotiation support to select only one dialect (based on vers=) 
Based on whether the user (on mount command) chooses:

vers=3.0 (for smb3.0 support)
vers=2.1 (for smb2.1 support)
or (with subsequent patch, which will allow SMB2 support)
vers=2.0 (for original smb2.02 dialect support)

send only one dialect at a time during negotiate (we
had been sending a list).

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-10-01 12:26:22 -05:00

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/*
* fs/cifs/smb2pdu.h
*
* Copyright (c) International Business Machines Corp., 2009, 2010
* Etersoft, 2012
* Author(s): Steve French (sfrench@us.ibm.com)
* Pavel Shilovsky (pshilovsky@samba.org) 2012
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _SMB2PDU_H
#define _SMB2PDU_H
#include <net/sock.h>
/*
* Note that, due to trying to use names similar to the protocol specifications,
* there are many mixed case field names in the structures below. Although
* this does not match typical Linux kernel style, it is necessary to be
* be able to match against the protocol specfication.
*
* SMB2 commands
* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
* (ie no useful data other than the SMB error code itself) and are marked such.
* Knowing this helps avoid response buffer allocations and copy in some cases.
*/
/* List of commands in host endian */
#define SMB2_NEGOTIATE_HE 0x0000
#define SMB2_SESSION_SETUP_HE 0x0001
#define SMB2_LOGOFF_HE 0x0002 /* trivial request/resp */
#define SMB2_TREE_CONNECT_HE 0x0003
#define SMB2_TREE_DISCONNECT_HE 0x0004 /* trivial req/resp */
#define SMB2_CREATE_HE 0x0005
#define SMB2_CLOSE_HE 0x0006
#define SMB2_FLUSH_HE 0x0007 /* trivial resp */
#define SMB2_READ_HE 0x0008
#define SMB2_WRITE_HE 0x0009
#define SMB2_LOCK_HE 0x000A
#define SMB2_IOCTL_HE 0x000B
#define SMB2_CANCEL_HE 0x000C
#define SMB2_ECHO_HE 0x000D
#define SMB2_QUERY_DIRECTORY_HE 0x000E
#define SMB2_CHANGE_NOTIFY_HE 0x000F
#define SMB2_QUERY_INFO_HE 0x0010
#define SMB2_SET_INFO_HE 0x0011
#define SMB2_OPLOCK_BREAK_HE 0x0012
/* The same list in little endian */
#define SMB2_NEGOTIATE cpu_to_le16(SMB2_NEGOTIATE_HE)
#define SMB2_SESSION_SETUP cpu_to_le16(SMB2_SESSION_SETUP_HE)
#define SMB2_LOGOFF cpu_to_le16(SMB2_LOGOFF_HE)
#define SMB2_TREE_CONNECT cpu_to_le16(SMB2_TREE_CONNECT_HE)
#define SMB2_TREE_DISCONNECT cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
#define SMB2_CREATE cpu_to_le16(SMB2_CREATE_HE)
#define SMB2_CLOSE cpu_to_le16(SMB2_CLOSE_HE)
#define SMB2_FLUSH cpu_to_le16(SMB2_FLUSH_HE)
#define SMB2_READ cpu_to_le16(SMB2_READ_HE)
#define SMB2_WRITE cpu_to_le16(SMB2_WRITE_HE)
#define SMB2_LOCK cpu_to_le16(SMB2_LOCK_HE)
#define SMB2_IOCTL cpu_to_le16(SMB2_IOCTL_HE)
#define SMB2_CANCEL cpu_to_le16(SMB2_CANCEL_HE)
#define SMB2_ECHO cpu_to_le16(SMB2_ECHO_HE)
#define SMB2_QUERY_DIRECTORY cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
#define SMB2_CHANGE_NOTIFY cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
#define SMB2_QUERY_INFO cpu_to_le16(SMB2_QUERY_INFO_HE)
#define SMB2_SET_INFO cpu_to_le16(SMB2_SET_INFO_HE)
#define SMB2_OPLOCK_BREAK cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
#define NUMBER_OF_SMB2_COMMANDS 0x0013
/* BB FIXME - analyze following length BB */
#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
#define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)
/*
* SMB2 Header Definition
*
* "MBZ" : Must be Zero
* "BB" : BugBug, Something to check/review/analyze later
* "PDU" : "Protocol Data Unit" (ie a network "frame")
*
*/
#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)
struct smb2_hdr {
__be32 smb2_buf_length; /* big endian on wire */
/* length is only two or three bytes - with
one or two byte type preceding it that MBZ */
__u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
__le16 StructureSize; /* 64 */
__le16 CreditCharge; /* MBZ */
__le32 Status; /* Error from server */
__le16 Command;
__le16 CreditRequest; /* CreditResponse */
__le32 Flags;
__le32 NextCommand;
__u64 MessageId; /* opaque - so can stay little endian */
__le32 ProcessId;
__u32 TreeId; /* opaque - so do not make little endian */
__u64 SessionId; /* opaque - so do not make little endian */
__u8 Signature[16];
} __packed;
struct smb2_pdu {
struct smb2_hdr hdr;
__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;
/*
* SMB2 flag definitions
*/
#define SMB2_FLAGS_SERVER_TO_REDIR __constant_cpu_to_le32(0x00000001)
#define SMB2_FLAGS_ASYNC_COMMAND __constant_cpu_to_le32(0x00000002)
#define SMB2_FLAGS_RELATED_OPERATIONS __constant_cpu_to_le32(0x00000004)
#define SMB2_FLAGS_SIGNED __constant_cpu_to_le32(0x00000008)
#define SMB2_FLAGS_DFS_OPERATIONS __constant_cpu_to_le32(0x10000000)
/*
* Definitions for SMB2 Protocol Data Units (network frames)
*
* See MS-SMB2.PDF specification for protocol details.
* The Naming convention is the lower case version of the SMB2
* command code name for the struct. Note that structures must be packed.
*
*/
#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9)
struct smb2_err_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
__le16 Reserved; /* MBZ */
__le32 ByteCount; /* even if zero, at least one byte follows */
__u8 ErrorData[1]; /* variable length */
} __packed;
#define SMB2_CLIENT_GUID_SIZE 16
extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
struct smb2_negotiate_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */
__le16 DialectCount;
__le16 SecurityMode;
__le16 Reserved; /* MBZ */
__le32 Capabilities;
__u8 ClientGUID[SMB2_CLIENT_GUID_SIZE];
__le64 ClientStartTime; /* MBZ */
__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
/* 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 */
#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
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;
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;
struct smb2_tree_connect_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 Reserved;
__le16 PathOffset;
__le16 PathLength;
__u8 Buffer[1]; /* variable length */
} __packed;
struct smb2_tree_connect_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 16 */
__u8 ShareType; /* see below */
__u8 Reserved;
__le32 ShareFlags; /* see below */
__le32 Capabilities; /* see below */
__le32 MaximalAccess;
} __packed;
/* Possible ShareType values */
#define SMB2_SHARE_TYPE_DISK 0x01
#define SMB2_SHARE_TYPE_PIPE 0x02
#define SMB2_SHARE_TYPE_PRINT 0x03
/*
* Possible ShareFlags - exactly one and only one of the first 4 caching flags
* must be set (any of the remaining, SHI1005, flags may be set individually
* or in combination.
*/
#define SMB2_SHAREFLAG_MANUAL_CACHING 0x00000000
#define SMB2_SHAREFLAG_AUTO_CACHING 0x00000010
#define SMB2_SHAREFLAG_VDO_CACHING 0x00000020
#define SMB2_SHAREFLAG_NO_CACHING 0x00000030
#define SHI1005_FLAGS_DFS 0x00000001
#define SHI1005_FLAGS_DFS_ROOT 0x00000002
#define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS 0x00000100
#define SHI1005_FLAGS_FORCE_SHARED_DELETE 0x00000200
#define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING 0x00000400
#define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM 0x00000800
#define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK 0x00001000
#define SHI1005_FLAGS_ENABLE_HASH 0x00002000
/* Possible share capabilities */
#define SMB2_SHARE_CAP_DFS cpu_to_le32(0x00000008)
struct smb2_tree_disconnect_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
struct smb2_tree_disconnect_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
/* File Attrubutes */
#define FILE_ATTRIBUTE_READONLY 0x00000001
#define FILE_ATTRIBUTE_HIDDEN 0x00000002
#define FILE_ATTRIBUTE_SYSTEM 0x00000004
#define FILE_ATTRIBUTE_DIRECTORY 0x00000010
#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
#define FILE_ATTRIBUTE_NORMAL 0x00000080
#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200
#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400
#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
#define FILE_ATTRIBUTE_OFFLINE 0x00001000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000
#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
/* Oplock levels */
#define SMB2_OPLOCK_LEVEL_NONE 0x00
#define SMB2_OPLOCK_LEVEL_II 0x01
#define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08
#define SMB2_OPLOCK_LEVEL_BATCH 0x09
#define SMB2_OPLOCK_LEVEL_LEASE 0xFF
/* Non-spec internal type */
#define SMB2_OPLOCK_LEVEL_NOCHANGE 0x99
/* Desired Access Flags */
#define FILE_READ_DATA_LE cpu_to_le32(0x00000001)
#define FILE_WRITE_DATA_LE cpu_to_le32(0x00000002)
#define FILE_APPEND_DATA_LE cpu_to_le32(0x00000004)
#define FILE_READ_EA_LE cpu_to_le32(0x00000008)
#define FILE_WRITE_EA_LE cpu_to_le32(0x00000010)
#define FILE_EXECUTE_LE cpu_to_le32(0x00000020)
#define FILE_READ_ATTRIBUTES_LE cpu_to_le32(0x00000080)
#define FILE_WRITE_ATTRIBUTES_LE cpu_to_le32(0x00000100)
#define FILE_DELETE_LE cpu_to_le32(0x00010000)
#define FILE_READ_CONTROL_LE cpu_to_le32(0x00020000)
#define FILE_WRITE_DAC_LE cpu_to_le32(0x00040000)
#define FILE_WRITE_OWNER_LE cpu_to_le32(0x00080000)
#define FILE_SYNCHRONIZE_LE cpu_to_le32(0x00100000)
#define FILE_ACCESS_SYSTEM_SECURITY_LE cpu_to_le32(0x01000000)
#define FILE_MAXIMAL_ACCESS_LE cpu_to_le32(0x02000000)
#define FILE_GENERIC_ALL_LE cpu_to_le32(0x10000000)
#define FILE_GENERIC_EXECUTE_LE cpu_to_le32(0x20000000)
#define FILE_GENERIC_WRITE_LE cpu_to_le32(0x40000000)
#define FILE_GENERIC_READ_LE cpu_to_le32(0x80000000)
/* ShareAccess Flags */
#define FILE_SHARE_READ_LE cpu_to_le32(0x00000001)
#define FILE_SHARE_WRITE_LE cpu_to_le32(0x00000002)
#define FILE_SHARE_DELETE_LE cpu_to_le32(0x00000004)
#define FILE_SHARE_ALL_LE cpu_to_le32(0x00000007)
/* CreateDisposition Flags */
#define FILE_SUPERSEDE_LE cpu_to_le32(0x00000000)
#define FILE_OPEN_LE cpu_to_le32(0x00000001)
#define FILE_CREATE_LE cpu_to_le32(0x00000002)
#define FILE_OPEN_IF_LE cpu_to_le32(0x00000003)
#define FILE_OVERWRITE_LE cpu_to_le32(0x00000004)
#define FILE_OVERWRITE_IF_LE cpu_to_le32(0x00000005)
/* CreateOptions Flags */
#define FILE_DIRECTORY_FILE_LE cpu_to_le32(0x00000001)
/* same as #define CREATE_NOT_FILE_LE cpu_to_le32(0x00000001) */
#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
#define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
#define FILE_SYNCHRONOUS_IO_ALERT_LE cpu_to_le32(0x00000010)
#define FILE_SYNCHRONOUS_IO_NON_ALERT_LE cpu_to_le32(0x00000020)
#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
#define FILE_RESERVE_OPFILTER_LE cpu_to_le32(0x00100000)
#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
#define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
| FILE_READ_ATTRIBUTES_LE)
#define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
/* Impersonation Levels */
#define IL_ANONYMOUS cpu_to_le32(0x00000000)
#define IL_IDENTIFICATION cpu_to_le32(0x00000001)
#define IL_IMPERSONATION cpu_to_le32(0x00000002)
#define IL_DELEGATE cpu_to_le32(0x00000003)
/* Create Context Values */
#define SMB2_CREATE_EA_BUFFER "ExtA" /* extended attributes */
#define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC"
#define SMB2_CREATE_ALLOCATION_SIZE "AlSi"
#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
#define SMB2_CREATE_TIMEWARP_REQUEST "TWrp"
#define SMB2_CREATE_QUERY_ON_DISK_ID "QFid"
#define SMB2_CREATE_REQUEST_LEASE "RqLs"
struct smb2_create_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 57 */
__u8 SecurityFlags;
__u8 RequestedOplockLevel;
__le32 ImpersonationLevel;
__le64 SmbCreateFlags;
__le64 Reserved;
__le32 DesiredAccess;
__le32 FileAttributes;
__le32 ShareAccess;
__le32 CreateDisposition;
__le32 CreateOptions;
__le16 NameOffset;
__le16 NameLength;
__le32 CreateContextsOffset;
__le32 CreateContextsLength;
__u8 Buffer[8];
} __packed;
struct smb2_create_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 89 */
__u8 OplockLevel;
__u8 Reserved;
__le32 CreateAction;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 AllocationSize;
__le64 EndofFile;
__le32 FileAttributes;
__le32 Reserved2;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__le32 CreateContextsOffset;
__le32 CreateContextsLength;
__u8 Buffer[1];
} __packed;
struct create_context {
__le32 Next;
__le16 NameOffset;
__le16 NameLength;
__le16 Reserved;
__le16 DataOffset;
__le32 DataLength;
__u8 Buffer[0];
} __packed;
#define SMB2_LEASE_NONE __constant_cpu_to_le32(0x00)
#define SMB2_LEASE_READ_CACHING __constant_cpu_to_le32(0x01)
#define SMB2_LEASE_HANDLE_CACHING __constant_cpu_to_le32(0x02)
#define SMB2_LEASE_WRITE_CACHING __constant_cpu_to_le32(0x04)
#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)
#define SMB2_LEASE_KEY_SIZE 16
struct lease_context {
__le64 LeaseKeyLow;
__le64 LeaseKeyHigh;
__le32 LeaseState;
__le32 LeaseFlags;
__le64 LeaseDuration;
} __packed;
struct create_lease {
struct create_context ccontext;
__u8 Name[8];
struct lease_context lcontext;
} __packed;
/* Currently defined values for close flags */
#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001)
struct smb2_close_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__le16 Flags;
__le32 Reserved;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
} __packed;
struct smb2_close_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* 60 */
__le16 Flags;
__le32 Reserved;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
__le64 EndOfFile;
__le32 Attributes;
} __packed;
struct smb2_flush_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__le16 Reserved1;
__le32 Reserved2;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
} __packed;
struct smb2_flush_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
__le16 Reserved;
} __packed;
struct smb2_read_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 49 */
__u8 Padding; /* offset from start of SMB2 header to place read */
__u8 Reserved;
__le32 Length;
__le64 Offset;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__le32 MinimumCount;
__le32 Channel; /* Reserved MBZ */
__le32 RemainingBytes;
__le16 ReadChannelInfoOffset; /* Reserved MBZ */
__le16 ReadChannelInfoLength; /* Reserved MBZ */
__u8 Buffer[1];
} __packed;
struct smb2_read_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 17 */
__u8 DataOffset;
__u8 Reserved;
__le32 DataLength;
__le32 DataRemaining;
__u32 Reserved2;
__u8 Buffer[1];
} __packed;
/* For write request Flags field below the following flag is defined: */
#define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001
struct smb2_write_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 49 */
__le16 DataOffset; /* offset from start of SMB2 header to write data */
__le32 Length;
__le64 Offset;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__le32 Channel; /* Reserved MBZ */
__le32 RemainingBytes;
__le16 WriteChannelInfoOffset; /* Reserved MBZ */
__le16 WriteChannelInfoLength; /* Reserved MBZ */
__le32 Flags;
__u8 Buffer[1];
} __packed;
struct smb2_write_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 17 */
__u8 DataOffset;
__u8 Reserved;
__le32 DataLength;
__le32 DataRemaining;
__u32 Reserved2;
__u8 Buffer[1];
} __packed;
#define SMB2_LOCKFLAG_SHARED_LOCK 0x0001
#define SMB2_LOCKFLAG_EXCLUSIVE_LOCK 0x0002
#define SMB2_LOCKFLAG_UNLOCK 0x0004
#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY 0x0010
struct smb2_lock_element {
__le64 Offset;
__le64 Length;
__le32 Flags;
__le32 Reserved;
} __packed;
struct smb2_lock_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 48 */
__le16 LockCount;
__le32 Reserved;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
/* Followed by at least one */
struct smb2_lock_element locks[1];
} __packed;
struct smb2_lock_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__le16 Reserved;
} __packed;
struct smb2_echo_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__u16 Reserved;
} __packed;
struct smb2_echo_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
__u16 Reserved;
} __packed;
/* search (query_directory) Flags field */
#define SMB2_RESTART_SCANS 0x01
#define SMB2_RETURN_SINGLE_ENTRY 0x02
#define SMB2_INDEX_SPECIFIED 0x04
#define SMB2_REOPEN 0x10
struct smb2_query_directory_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 33 */
__u8 FileInformationClass;
__u8 Flags;
__le32 FileIndex;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__le16 FileNameOffset;
__le16 FileNameLength;
__le32 OutputBufferLength;
__u8 Buffer[1];
} __packed;
struct smb2_query_directory_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 OutputBufferOffset;
__le32 OutputBufferLength;
__u8 Buffer[1];
} __packed;
/* Possible InfoType values */
#define SMB2_O_INFO_FILE 0x01
#define SMB2_O_INFO_FILESYSTEM 0x02
#define SMB2_O_INFO_SECURITY 0x03
#define SMB2_O_INFO_QUOTA 0x04
struct smb2_query_info_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 41 */
__u8 InfoType;
__u8 FileInfoClass;
__le32 OutputBufferLength;
__le16 InputBufferOffset;
__u16 Reserved;
__le32 InputBufferLength;
__le32 AdditionalInformation;
__le32 Flags;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__u8 Buffer[1];
} __packed;
struct smb2_query_info_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 OutputBufferOffset;
__le32 OutputBufferLength;
__u8 Buffer[1];
} __packed;
struct smb2_set_info_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 33 */
__u8 InfoType;
__u8 FileInfoClass;
__le32 BufferLength;
__le16 BufferOffset;
__u16 Reserved;
__le32 AdditionalInformation;
__u64 PersistentFileId; /* opaque endianness */
__u64 VolatileFileId; /* opaque endianness */
__u8 Buffer[1];
} __packed;
struct smb2_set_info_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 2 */
} __packed;
struct smb2_oplock_break {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__u8 OplockLevel;
__u8 Reserved;
__le32 Reserved2;
__u64 PersistentFid;
__u64 VolatileFid;
} __packed;
#define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
struct smb2_lease_break {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 44 */
__le16 Reserved;
__le32 Flags;
__u8 LeaseKey[16];
__le32 CurrentLeaseState;
__le32 NewLeaseState;
__le32 BreakReason;
__le32 AccessMaskHint;
__le32 ShareMaskHint;
} __packed;
struct smb2_lease_ack {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */
__le16 Reserved;
__le32 Flags;
__u8 LeaseKey[16];
__le32 LeaseState;
__le64 LeaseDuration;
} __packed;
/*
* PDU infolevel structure definitions
* BB consider moving to a different header
*/
/* File System Information Classes */
#define FS_VOLUME_INFORMATION 1 /* Query */
#define FS_LABEL_INFORMATION 2 /* Set */
#define FS_SIZE_INFORMATION 3 /* Query */
#define FS_DEVICE_INFORMATION 4 /* Query */
#define FS_ATTRIBUTE_INFORMATION 5 /* Query */
#define FS_CONTROL_INFORMATION 6 /* Query, Set */
#define FS_FULL_SIZE_INFORMATION 7 /* Query */
#define FS_OBJECT_ID_INFORMATION 8 /* Query, Set */
#define FS_DRIVER_PATH_INFORMATION 9 /* Query */
struct smb2_fs_full_size_info {
__le64 TotalAllocationUnits;
__le64 CallerAvailableAllocationUnits;
__le64 ActualAvailableAllocationUnits;
__le32 SectorsPerAllocationUnit;
__le32 BytesPerSector;
} __packed;
/* partial list of QUERY INFO levels */
#define FILE_DIRECTORY_INFORMATION 1
#define FILE_FULL_DIRECTORY_INFORMATION 2
#define FILE_BOTH_DIRECTORY_INFORMATION 3
#define FILE_BASIC_INFORMATION 4
#define FILE_STANDARD_INFORMATION 5
#define FILE_INTERNAL_INFORMATION 6
#define FILE_EA_INFORMATION 7
#define FILE_ACCESS_INFORMATION 8
#define FILE_NAME_INFORMATION 9
#define FILE_RENAME_INFORMATION 10
#define FILE_LINK_INFORMATION 11
#define FILE_NAMES_INFORMATION 12
#define FILE_DISPOSITION_INFORMATION 13
#define FILE_POSITION_INFORMATION 14
#define FILE_FULL_EA_INFORMATION 15
#define FILE_MODE_INFORMATION 16
#define FILE_ALIGNMENT_INFORMATION 17
#define FILE_ALL_INFORMATION 18
#define FILE_ALLOCATION_INFORMATION 19
#define FILE_END_OF_FILE_INFORMATION 20
#define FILE_ALTERNATE_NAME_INFORMATION 21
#define FILE_STREAM_INFORMATION 22
#define FILE_PIPE_INFORMATION 23
#define FILE_PIPE_LOCAL_INFORMATION 24
#define FILE_PIPE_REMOTE_INFORMATION 25
#define FILE_MAILSLOT_QUERY_INFORMATION 26
#define FILE_MAILSLOT_SET_INFORMATION 27
#define FILE_COMPRESSION_INFORMATION 28
#define FILE_OBJECT_ID_INFORMATION 29
/* Number 30 not defined in documents */
#define FILE_MOVE_CLUSTER_INFORMATION 31
#define FILE_QUOTA_INFORMATION 32
#define FILE_REPARSE_POINT_INFORMATION 33
#define FILE_NETWORK_OPEN_INFORMATION 34
#define FILE_ATTRIBUTE_TAG_INFORMATION 35
#define FILE_TRACKING_INFORMATION 36
#define FILEID_BOTH_DIRECTORY_INFORMATION 37
#define FILEID_FULL_DIRECTORY_INFORMATION 38
#define FILE_VALID_DATA_LENGTH_INFORMATION 39
#define FILE_SHORT_NAME_INFORMATION 40
#define FILE_SFIO_RESERVE_INFORMATION 44
#define FILE_SFIO_VOLUME_INFORMATION 45
#define FILE_HARD_LINK_INFORMATION 46
#define FILE_NORMALIZED_NAME_INFORMATION 48
#define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
#define FILE_STANDARD_LINK_INFORMATION 54
struct smb2_file_internal_info {
__le64 IndexNumber;
} __packed; /* level 6 Query */
struct smb2_file_rename_info { /* encoding of request for level 10 */
__u8 ReplaceIfExists; /* 1 = replace existing target with new */
/* 0 = fail if target already exists */
__u8 Reserved[7];
__u64 RootDirectory; /* MBZ for network operations (why says spec?) */
__le32 FileNameLength;
char FileName[0]; /* New name to be assigned */
} __packed; /* level 10 Set */
struct smb2_file_link_info { /* encoding of request for level 11 */
__u8 ReplaceIfExists; /* 1 = replace existing link with new */
/* 0 = fail if link already exists */
__u8 Reserved[7];
__u64 RootDirectory; /* MBZ for network operations (why says spec?) */
__le32 FileNameLength;
char FileName[0]; /* Name to be assigned to new link */
} __packed; /* level 11 Set */
/*
* This level 18, although with struct with same name is different from cifs
* level 0x107. Level 0x107 has an extra u64 between AccessFlags and
* CurrentByteOffset.
*/
struct smb2_file_all_info { /* data block encoding of response to level 18 */
__le64 CreationTime; /* Beginning of FILE_BASIC_INFO equivalent */
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le32 Attributes;
__u32 Pad1; /* End of FILE_BASIC_INFO_INFO equivalent */
__le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
__le64 EndOfFile; /* size ie offset to first free byte in file */
__le32 NumberOfLinks; /* hard links */
__u8 DeletePending;
__u8 Directory;
__u16 Pad2; /* End of FILE_STANDARD_INFO equivalent */
__le64 IndexNumber;
__le32 EASize;
__le32 AccessFlags;
__le64 CurrentByteOffset;
__le32 Mode;
__le32 AlignmentRequirement;
__le32 FileNameLength;
char FileName[1];
} __packed; /* level 18 Query */
struct smb2_file_eof_info { /* encoding of request for level 10 */
__le64 EndOfFile; /* new end of file value */
} __packed; /* level 20 Set */
#endif /* _SMB2PDU_H */
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