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smb2pdu.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2016 Namjae Jeon <[email protected]>
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
*/
#ifndef _SMB2PDU_H
#define _SMB2PDU_H
#include "ntlmssp.h"
#include "smbacl.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
* 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)
/*Create Action Flags*/
#define FILE_SUPERSEDED 0x00000000
#define FILE_OPENED 0x00000001
#define FILE_CREATED 0x00000002
#define FILE_OVERWRITTEN 0x00000003
/*
* Size of the session key (crypto key encrypted with the password
*/
#define SMB2_NTLMV2_SESSKEY_SIZE 16
#define SMB2_SIGNATURE_SIZE 16
#define SMB2_HMACSHA256_SIZE 32
#define SMB2_CMACAES_SIZE 16
/*
* Size of the smb3 signing key
*/
#define SMB3_SIGN_KEY_SIZE 16
#define CIFS_CLIENT_CHALLENGE_SIZE 8
#define SMB_SERVER_CHALLENGE_SIZE 8
/* SMB2 Max Credits */
#define SMB2_MAX_CREDITS 8192
#define SMB2_CLIENT_GUID_SIZE 16
#define SMB2_CREATE_GUID_SIZE 16
/* Maximum buffer size value we can send with 1 credit */
#define SMB2_MAX_BUFFER_SIZE 65536
#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 cpu_to_le32(0x424d53fe) /* 'B''M''S' */
#define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
#define SMB21_DEFAULT_IOSIZE (1024 * 1024)
#define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
#define SMB3_DEFAULT_TRANS_SIZE (1024 * 1024)
/*
* 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 64
#define SMB2_HEADER_STRUCTURE_SIZE \
cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
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
*/
__le32 ProtocolId; /* 0xFE 'S' 'M' 'B' */
__le16 StructureSize; /* 64 */
__le16 CreditCharge; /* MBZ */
__le32 Status; /* Error from server */
__le16 Command;
__le16 CreditRequest; /* CreditResponse */
__le32 Flags;
__le32 NextCommand;
__le64 MessageId;
union {
struct {
__le32 ProcessId;
__le32 TreeId;
} __packed SyncId;
__le64 AsyncId;
} __packed Id;
__le64 SessionId;
__u8 Signature[16];
} __packed;
struct smb2_pdu {
struct smb2_hdr hdr;
__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;
#define SMB3_AES128CCM_NONCE 11
#define SMB3_AES128GCM_NONCE 12
struct smb2_transform_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
*/
__le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */
__u8 Signature[16];
__u8 Nonce[16];
__le32 OriginalMessageSize;
__u16 Reserved1;
__le16 Flags; /* EncryptionAlgorithm */
__le64 SessionId;
} __packed;
/*
* SMB2 flag definitions
*/
#define SMB2_FLAGS_SERVER_TO_REDIR cpu_to_le32(0x00000001)
#define SMB2_FLAGS_ASYNC_COMMAND cpu_to_le32(0x00000002)
#define SMB2_FLAGS_RELATED_OPERATIONS cpu_to_le32(0x00000004)
#define SMB2_FLAGS_SIGNED cpu_to_le32(0x00000008)
#define SMB2_FLAGS_DFS_OPERATIONS cpu_to_le32(0x10000000)
#define SMB2_FLAGS_REPLAY_OPERATIONS cpu_to_le32(0x20000000)
/*
* 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 9
#define SMB2_ERROR_STRUCTURE_SIZE2_LE cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
struct smb2_err_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
__u8 ErrorContextCount;
__u8 Reserved;
__le32 ByteCount; /* even if zero, at least one byte follows */
__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[SMB2_CLIENT_GUID_SIZE];
/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
__le16 NegotiateContextCount; /* SMB3.1.1 only. MBZ earlier */
__le16 Reserved2;
__le16 Dialects[1]; /* One dialect (vers=) at a time for now */
} __packed;
/* SecurityMode flags */
#define SMB2_NEGOTIATE_SIGNING_ENABLED_LE cpu_to_le16(0x0001)
#define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
#define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(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
#define SMB311_SALT_SIZE 32
/* Hash Algorithm Types */
#define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001)
#define PREAUTH_HASHVALUE_SIZE 64
struct preauth_integrity_info {
/* PreAuth integrity Hash ID */
__le16 Preauth_HashId;
/* PreAuth integrity Hash Value */
__u8 Preauth_HashValue[PREAUTH_HASHVALUE_SIZE];
};
/* offset is sizeof smb2_negotiate_rsp - 4 but rounded up to 8 bytes. */
#ifdef CONFIG_SMB_SERVER_KERBEROS5
/* sizeof(struct smb2_negotiate_rsp) - 4 =
* header(64) + response(64) + GSS_LENGTH(96) + GSS_PADDING(0)
*/
#define OFFSET_OF_NEG_CONTEXT 0xe0
#else
/* sizeof(struct smb2_negotiate_rsp) - 4 =
* header(64) + response(64) + GSS_LENGTH(74) + GSS_PADDING(6)
*/
#define OFFSET_OF_NEG_CONTEXT 0xd0
#endif
#define SMB2_PREAUTH_INTEGRITY_CAPABILITIES cpu_to_le16(1)
#define SMB2_ENCRYPTION_CAPABILITIES cpu_to_le16(2)
#define SMB2_COMPRESSION_CAPABILITIES cpu_to_le16(3)
#define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID cpu_to_le16(5)
#define SMB2_POSIX_EXTENSIONS_AVAILABLE cpu_to_le16(0x100)
struct smb2_neg_context {
__le16 ContextType;
__le16 DataLength;
__le32 Reserved;
/* Followed by array of data */
} __packed;
struct smb2_preauth_neg_context {
__le16 ContextType; /* 1 */
__le16 DataLength;
__le32 Reserved;
__le16 HashAlgorithmCount; /* 1 */
__le16 SaltLength;
__le16 HashAlgorithms; /* HashAlgorithms[0] since only one defined */
__u8 Salt[SMB311_SALT_SIZE];
} __packed;
/* Encryption Algorithms Ciphers */
#define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001)
#define SMB2_ENCRYPTION_AES128_GCM cpu_to_le16(0x0002)
struct smb2_encryption_neg_context {
__le16 ContextType; /* 2 */
__le16 DataLength;
__le32 Reserved;
__le16 CipherCount; /* AES-128-GCM and AES-128-CCM */
__le16 Ciphers[1]; /* Ciphers[0] since only one used now */
} __packed;
#define SMB3_COMPRESS_NONE cpu_to_le16(0x0000)
#define SMB3_COMPRESS_LZNT1 cpu_to_le16(0x0001)
#define SMB3_COMPRESS_LZ77 cpu_to_le16(0x0002)
#define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003)
struct smb2_compression_ctx {
__le16 ContextType; /* 3 */
__le16 DataLength;
__le32 Reserved;
__le16 CompressionAlgorithmCount;
__u16 Padding;
__le32 Reserved1;
__le16 CompressionAlgorithms[1];
} __packed;
#define POSIX_CTXT_DATA_LEN 16
struct smb2_posix_neg_context {
__le16 ContextType; /* 0x100 */
__le16 DataLength;
__le32 Reserved;
__u8 Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
} __packed;
struct smb2_netname_neg_context {
__le16 ContextType; /* 0x100 */
__le16 DataLength;
__le32 Reserved;
__le16 NetName[0]; /* hostname of target converted to UCS-2 */
} __packed;
struct smb2_negotiate_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 65 */
__le16 SecurityMode;
__le16 DialectRevision;
__le16 NegotiateContextCount; /* Prior to SMB3.1.1 was Reserved & MBZ */
__u8 ServerGUID[16];
__le32 Capabilities;
__le32 MaxTransactSize;
__le32 MaxReadSize;
__le32 MaxWriteSize;
__le64 SystemTime; /* MBZ */
__le64 ServerStartTime;
__le16 SecurityBufferOffset;
__le16 SecurityBufferLength;
__le32 NegotiateContextOffset; /* Pre:SMB3.1.1 was reserved/ignored */
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/* Flags */
#define SMB2_SESSION_REQ_FLAG_BINDING 0x01
#define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA 0x04
#define SMB2_SESSION_EXPIRED (0)
#define SMB2_SESSION_IN_PROGRESS (1 << 0)
#define SMB2_SESSION_VALID (1 << 1)
/* Flags */
#define SMB2_SESSION_REQ_FLAG_BINDING 0x01
#define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA 0x04
struct smb2_sess_setup_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 25 */
__u8 Flags;
__u8 SecurityMode;
__le32 Capabilities;
__le32 Channel;
__le16 SecurityBufferOffset;
__le16 SecurityBufferLength;
__le64 PreviousSessionId;
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/* Flags/Reserved for SMB3.1.1 */
#define SMB2_SHAREFLAG_CLUSTER_RECONNECT 0x0001
/* Currently defined SessionFlags */
#define SMB2_SESSION_FLAG_IS_GUEST_LE cpu_to_le16(0x0001)
#define SMB2_SESSION_FLAG_IS_NULL_LE cpu_to_le16(0x0002)
#define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
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; /* Flags in SMB3.1.1 */
__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;
#define ATTR_READONLY_LE cpu_to_le32(ATTR_READONLY)
#define ATTR_HIDDEN_LE cpu_to_le32(ATTR_HIDDEN)
#define ATTR_SYSTEM_LE cpu_to_le32(ATTR_SYSTEM)
#define ATTR_DIRECTORY_LE cpu_to_le32(ATTR_DIRECTORY)
#define ATTR_ARCHIVE_LE cpu_to_le32(ATTR_ARCHIVE)
#define ATTR_NORMAL_LE cpu_to_le32(ATTR_NORMAL)
#define ATTR_TEMPORARY_LE cpu_to_le32(ATTR_TEMPORARY)
#define ATTR_SPARSE_FILE_LE cpu_to_le32(ATTR_SPARSE)
#define ATTR_REPARSE_POINT_LE cpu_to_le32(ATTR_REPARSE)
#define ATTR_COMPRESSED_LE cpu_to_le32(ATTR_COMPRESSED)
#define ATTR_OFFLINE_LE cpu_to_le32(ATTR_OFFLINE)
#define ATTR_NOT_CONTENT_INDEXED_LE cpu_to_le32(ATTR_NOT_CONTENT_INDEXED)
#define ATTR_ENCRYPTED_LE cpu_to_le32(ATTR_ENCRYPTED)
#define ATTR_INTEGRITY_STREAML_LE cpu_to_le32(0x00008000)
#define ATTR_NO_SCRUB_DATA_LE cpu_to_le32(0x00020000)
#define ATTR_MASK_LE cpu_to_le32(0x00007FB7)
/* 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_LIST_DIRECTORY_LE cpu_to_le32(0x00000001)
#define FILE_WRITE_DATA_LE cpu_to_le32(0x00000002)
#define FILE_ADD_FILE_LE cpu_to_le32(0x00000002)
#define FILE_APPEND_DATA_LE cpu_to_le32(0x00000004)
#define FILE_ADD_SUBDIRECTORY_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_TRAVERSE_LE cpu_to_le32(0x00000020)
#define FILE_DELETE_CHILD_LE cpu_to_le32(0x00000040)
#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)
#define DESIRED_ACCESS_MASK cpu_to_le32(0xF21F01FF)
/* 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)
#define FILE_CREATE_MASK_LE cpu_to_le32(0x00000007)
#define FILE_READ_DESIRED_ACCESS_LE (FILE_READ_DATA_LE | \
FILE_READ_EA_LE | \
FILE_GENERIC_READ_LE)
#define FILE_WRITE_DESIRE_ACCESS_LE (FILE_WRITE_DATA_LE | \
FILE_APPEND_DATA_LE | \
FILE_WRITE_EA_LE | \
FILE_WRITE_ATTRIBUTES_LE | \
FILE_GENERIC_WRITE_LE)
/* Impersonation Levels */
#define IL_ANONYMOUS_LE cpu_to_le32(0x00000000)
#define IL_IDENTIFICATION_LE cpu_to_le32(0x00000001)
#define IL_IMPERSONATION_LE cpu_to_le32(0x00000002)
#define IL_DELEGATE_LE 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"
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2 "DH2Q"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C"
#define SMB2_CREATE_APP_INSTANCE_ID "\x45\xBC\xA6\x6A\xEF\xA7\xF7\x4A\x90\x08\xFA\x46\x2E\x14\x4D\x74"
#define SMB2_CREATE_APP_INSTANCE_VERSION "\xB9\x82\xD0\xB7\x3B\x56\x07\x4F\xA0\x7B\x52\x4A\x81\x16\xA0\x10"
#define SVHDX_OPEN_DEVICE_CONTEXT 0x83CE6F1AD851E0986E34401CC9BCFCE9
#define SMB2_CREATE_TAG_POSIX "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
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[0];
} __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;
__le64 PersistentFileId;
__le64 VolatileFileId;
__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;
struct create_durable_req_v2 {
struct create_context ccontext;
__u8 Name[8];
__le32 Timeout;
__le32 Flags;
__u8 Reserved[8];
__u8 CreateGuid[16];
} __packed;
struct create_durable_reconn_req {
struct create_context ccontext;
__u8 Name[8];
union {
__u8 Reserved[16];
struct {
__le64 PersistentFileId;
__le64 VolatileFileId;
} Fid;
} Data;
} __packed;
struct create_durable_reconn_v2_req {
struct create_context ccontext;
__u8 Name[8];
struct {
__le64 PersistentFileId;
__le64 VolatileFileId;
} Fid;
__u8 CreateGuid[16];
__le32 Flags;
} __packed;
struct create_app_inst_id {
struct create_context ccontext;
__u8 Name[8];
__u8 Reserved[8];
__u8 AppInstanceId[16];
} __packed;
struct create_app_inst_id_vers {
struct create_context ccontext;
__u8 Name[8];
__u8 Reserved[2];
__u8 Padding[4];
__le64 AppInstanceVersionHigh;
__le64 AppInstanceVersionLow;
} __packed;
struct create_mxac_req {
struct create_context ccontext;
__u8 Name[8];
__le64 Timestamp;
} __packed;
struct create_alloc_size_req {
struct create_context ccontext;
__u8 Name[8];
__le64 AllocationSize;
} __packed;
struct create_posix {
struct create_context ccontext;
__u8 Name[16];
__le32 Mode;
__u32 Reserved;
} __packed;
struct create_durable_rsp {
struct create_context ccontext;
__u8 Name[8];
union {
__u8 Reserved[8];
__u64 data;
} Data;
} __packed;
struct create_durable_v2_rsp {
struct create_context ccontext;
__u8 Name[8];
__le32 Timeout;
__le32 Flags;
} __packed;
struct create_mxac_rsp {
struct create_context ccontext;
__u8 Name[8];
__le32 QueryStatus;
__le32 MaximalAccess;
} __packed;
struct create_disk_id_rsp {
struct create_context ccontext;
__u8 Name[8];
__le64 DiskFileId;
__le64 VolumeId;
__u8 Reserved[16];
} __packed;
/* equivalent of the contents of SMB3.1.1 POSIX open context response */
struct create_posix_rsp {
struct create_context ccontext;
__u8 Name[16];
__le32 nlink;
__le32 reparse_tag;
__le32 mode;
u8 SidBuffer[40];
} __packed;
#define SMB2_LEASE_NONE_LE cpu_to_le32(0x00)
#define SMB2_LEASE_READ_CACHING_LE cpu_to_le32(0x01)
#define SMB2_LEASE_HANDLE_CACHING_LE cpu_to_le32(0x02)
#define SMB2_LEASE_WRITE_CACHING_LE cpu_to_le32(0x04)
#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE cpu_to_le32(0x02)
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;
__le64 PersistentFileId;
__le64 VolatileFileId;
} __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;
__le64 PersistentFileId;
__le64 VolatileFileId;
} __packed;
struct smb2_flush_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
__le16 Reserved;
} __packed;
struct smb2_buffer_desc_v1 {
__le64 offset;
__le32 token;
__le32 length;
} __packed;
#define SMB2_CHANNEL_NONE cpu_to_le32(0x00000000)
#define SMB2_CHANNEL_RDMA_V1 cpu_to_le32(0x00000001)
#define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
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;
__le64 PersistentFileId;
__le64 VolatileFileId;
__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;
__le64 PersistentFileId;
__le64 VolatileFileId;
__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_0_IOCTL_IS_FSCTL 0x00000001
struct smb2_ioctl_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 57 */
__le16 Reserved; /* offset from start of SMB2 header to write data */
__le32 CntCode;
__le64 PersistentFileId;
__le64 VolatileFileId;
__le32 InputOffset; /* Reserved MBZ */
__le32 InputCount;
__le32 MaxInputResponse;
__le32 OutputOffset;
__le32 OutputCount;
__le32 MaxOutputResponse;
__le32 Flags;
__le32 Reserved2;
__u8 Buffer[1];
} __packed;
struct smb2_ioctl_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 49 */
__le16 Reserved; /* offset from start of SMB2 header to write data */
__le32 CntCode;
__le64 PersistentFileId;
__le64 VolatileFileId;
__le32 InputOffset; /* Reserved MBZ */
__le32 InputCount;
__le32 OutputOffset;
__le32 OutputCount;
__le32 Flags;
__le32 Reserved2;
__u8 Buffer[1];
} __packed;
struct validate_negotiate_info_req {
__le32 Capabilities;
__u8 Guid[SMB2_CLIENT_GUID_SIZE];
__le16 SecurityMode;
__le16 DialectCount;
__le16 Dialects[1]; /* dialect (someday maybe list) client asked for */
} __packed;
struct validate_negotiate_info_rsp {
__le32 Capabilities;
__u8 Guid[SMB2_CLIENT_GUID_SIZE];
__le16 SecurityMode;
__le16 Dialect; /* Dialect in use for the connection */
} __packed;
struct smb_sockaddr_in {
__be16 Port;
__be32 IPv4address;
__u8 Reserved[8];
} __packed;
struct smb_sockaddr_in6 {
__be16 Port;
__be32 FlowInfo;
__u8 IPv6address[16];
__be32 ScopeId;
} __packed;
#define INTERNETWORK 0x0002
#define INTERNETWORKV6 0x0017
struct sockaddr_storage_rsp {
__le16 Family;
union {
struct smb_sockaddr_in addr4;
struct smb_sockaddr_in6 addr6;
};
} __packed;
#define RSS_CAPABLE 0x00000001
#define RDMA_CAPABLE 0x00000002
struct network_interface_info_ioctl_rsp {
__le32 Next; /* next interface. zero if this is last one */
__le32 IfIndex;
__le32 Capability; /* RSS or RDMA Capable */
__le32 Reserved;
__le64 LinkSpeed;
char SockAddr_Storage[128];
} __packed;
struct file_object_buf_type1_ioctl_rsp {
__u8 ObjectId[16];
__u8 BirthVolumeId[16];
__u8 BirthObjectId[16];
__u8 DomainId[16];
} __packed;
struct resume_key_ioctl_rsp {
__le64 ResumeKey[3];
__le32 ContextLength;
__u8 Context[4]; /* ignored, Windows sets to 4 bytes of zero */
} __packed;
struct copychunk_ioctl_req {
__le64 ResumeKey[3];
__le32 ChunkCount;
__le32 Reserved;
__u8 Chunks[1]; /* array of srv_copychunk */
} __packed;
struct srv_copychunk {
__le64 SourceOffset;
__le64 TargetOffset;
__le32 Length;
__le32 Reserved;
} __packed;
struct copychunk_ioctl_rsp {
__le32 ChunksWritten;
__le32 ChunkBytesWritten;
__le32 TotalBytesWritten;
} __packed;
struct file_sparse {
__u8 SetSparse;
} __packed;
struct file_zero_data_information {
__le64 FileOffset;
__le64 BeyondFinalZero;
} __packed;
struct file_allocated_range_buffer {
__le64 file_offset;
__le64 length;
} __packed;
struct reparse_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__u8 DataBuffer[]; /* Variable Length */
} __packed;
/* Completion Filter flags for Notify */
#define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001
#define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002
#define FILE_NOTIFY_CHANGE_NAME 0x00000003
#define FILE_NOTIFY_CHANGE_ATTRIBUTES 0x00000004
#define FILE_NOTIFY_CHANGE_SIZE 0x00000008
#define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010
#define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x00000020
#define FILE_NOTIFY_CHANGE_CREATION 0x00000040
#define FILE_NOTIFY_CHANGE_EA 0x00000080
#define FILE_NOTIFY_CHANGE_SECURITY 0x00000100
#define FILE_NOTIFY_CHANGE_STREAM_NAME 0x00000200
#define FILE_NOTIFY_CHANGE_STREAM_SIZE 0x00000400
#define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
/* Flags */
#define SMB2_WATCH_TREE 0x0001