/* SPDX-License-Identifier: LGPL-2.1 */ #ifndef _COMMON_SMB2PDU_H #define _COMMON_SMB2PDU_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) #define SMB2_INTERNAL_CMD cpu_to_le16(0xFFFF) #define NUMBER_OF_SMB2_COMMANDS 0x0013 /* * 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) #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe) #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd) #define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc) /* * 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_PRIORITY_MASK cpu_to_le32(0x00000070) /* SMB3.1.1 */ #define SMB2_FLAGS_DFS_OPERATIONS cpu_to_le32(0x10000000) #define SMB2_FLAGS_REPLAY_OPERATION cpu_to_le32(0x20000000) /* SMB3 & up */ /* See MS-SMB2 section 2.2.1 */ struct smb2_hdr { __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_AES_CCM_NONCE 11 #define SMB3_AES_GCM_NONCE 12 /* Transform flags (for 3.0 dialect this flag indicates CCM */ #define TRANSFORM_FLAG_ENCRYPTED 0x0001 struct smb2_transform_hdr { __le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */ __u8 Signature[16]; __u8 Nonce[16]; __le32 OriginalMessageSize; __u16 Reserved1; __le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */ __le64 SessionId; } __packed; /* See MS-SMB2 2.2.42 */ struct smb2_compression_transform_hdr_unchained { __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */ __le32 OriginalCompressedSegmentSize; __le16 CompressionAlgorithm; __le16 Flags; __le16 Length; /* if chained it is length, else offset */ } __packed; /* See MS-SMB2 2.2.42.1 */ #define SMB2_COMPRESSION_FLAG_NONE 0x0000 #define SMB2_COMPRESSION_FLAG_CHAINED 0x0001 struct compression_payload_header { __le16 CompressionAlgorithm; __le16 Flags; __le32 Length; /* length of compressed playload including field below if present */ /* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */ } __packed; /* See MS-SMB2 2.2.42.2 */ struct smb2_compression_transform_hdr_chained { __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */ __le32 OriginalCompressedSegmentSize; /* struct compression_payload_header[] */ } __packed; /* See MS-SMB2 2.2.42.2.2 */ struct compression_pattern_payload_v1 { __le16 Pattern; __le16 Reserved1; __le16 Reserved2; __le32 Repetitions; } __packed; /* See MS-SMB2 section 2.2.9.2 */ /* Context Types */ #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001) struct tree_connect_contexts { __le16 ContextType; __le16 DataLength; __le32 Reserved; __u8 Data[]; } __packed; /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */ struct smb3_blob_data { __le16 BlobSize; __u8 BlobData[]; } __packed; /* Valid values for Attr */ #define SE_GROUP_MANDATORY 0x00000001 #define SE_GROUP_ENABLED_BY_DEFAULT 0x00000002 #define SE_GROUP_ENABLED 0x00000004 #define SE_GROUP_OWNER 0x00000008 #define SE_GROUP_USE_FOR_DENY_ONLY 0x00000010 #define SE_GROUP_INTEGRITY 0x00000020 #define SE_GROUP_INTEGRITY_ENABLED 0x00000040 #define SE_GROUP_RESOURCE 0x20000000 #define SE_GROUP_LOGON_ID 0xC0000000 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */ struct sid_array_data { __le16 SidAttrCount; /* SidAttrList - array of sid_attr_data structs */ } __packed; struct luid_attr_data { } __packed; /* * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5 * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA */ struct privilege_array_data { __le16 PrivilegeCount; /* array of privilege_data structs */ } __packed; struct remoted_identity_tcon_context { __le16 TicketType; /* must be 0x0001 */ __le16 TicketSize; /* total size of this struct */ __le16 User; /* offset to SID_ATTR_DATA struct with user info */ __le16 UserName; /* offset to null terminated Unicode username string */ __le16 Domain; /* offset to null terminated Unicode domain name */ __le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */ __le16 RestrictedGroups; /* similar to above */ __le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */ __le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */ __le16 Owner; /* offset to BLOB_DATA struct */ __le16 DefaultDacl; /* offset to BLOB_DATA struct */ __le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */ __le16 UserClaims; /* offset to BLOB_DATA struct */ __le16 DeviceClaims; /* offset to BLOB_DATA struct */ __u8 TicketInfo[]; /* variable length buf - remoted identity data */ } __packed; struct smb2_tree_connect_req_extension { __le32 TreeConnectContextOffset; __le16 TreeConnectContextCount; __u8 Reserved[10]; __u8 PathName[]; /* variable sized array */ /* followed by array of TreeConnectContexts */ } __packed; /* Flags/Reserved for SMB3.1.1 */ #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001) #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002) #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004) struct smb2_tree_connect_req { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 9 */ __le16 Flags; /* Flags in SMB3.1.1 */ __le16 PathOffset; __le16 PathLength; __u8 Buffer[1]; /* variable length */ } __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_V1 0x00002000 #define SHI1005_FLAGS_ENABLE_HASH_V2 0x00004000 #define SHI1005_FLAGS_ENCRYPT_DATA 0x00008000 #define SMB2_SHAREFLAG_IDENTITY_REMOTING 0x00040000 /* 3.1.1 */ #define SMB2_SHAREFLAG_COMPRESS_DATA 0x00100000 /* 3.1.1 */ #define SHI1005_FLAGS_ALL 0x0014FF33 /* Possible share capabilities */ #define SMB2_SHARE_CAP_DFS cpu_to_le32(0x00000008) /* all dialects */ #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */ #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */ #define SMB2_SHARE_CAP_CLUSTER cpu_to_le32(0x00000040) /* 3.0 */ #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */ #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */ 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; 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; /* * SMB2_NEGOTIATE_PROTOCOL See MS-SMB2 section 2.2.3 */ /* SecurityMode flags */ #define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001 #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) #define SMB2_SEC_MODE_FLAGS_ALL 0x0003 /* 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 SMB2_CLIENT_GUID_SIZE 16 #define SMB2_CREATE_GUID_SIZE 16 /* Dialects */ #define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */ #define SMB20_PROT_ID 0x0202 #define SMB21_PROT_ID 0x0210 #define SMB2X_PROT_ID 0x02FF #define SMB30_PROT_ID 0x0300 #define SMB302_PROT_ID 0x0302 #define SMB311_PROT_ID 0x0311 #define BAD_PROT_ID 0xFFFF #define SMB311_SALT_SIZE 32 /* Hash Algorithm Types */ #define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001) #define SMB2_PREAUTH_HASH_SIZE 64 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */ #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_TRANSPORT_CAPABILITIES cpu_to_le16(6) #define SMB2_RDMA_TRANSFORM_CAPABILITIES cpu_to_le16(7) #define SMB2_SIGNING_CAPABILITIES cpu_to_le16(8) #define SMB2_POSIX_EXTENSIONS_AVAILABLE cpu_to_le16(0x100) struct smb2_neg_context { __le16 ContextType; __le16 DataLength; __le32 Reserved; /* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */ } __packed; /* * SaltLength that the server send can be zero, so the only three required * fields (all __le16) end up six bytes total, so the minimum context data len * in the response is six bytes which accounts for * * HashAlgorithmCount, SaltLength, and 1 HashAlgorithm. */ #define MIN_PREAUTH_CTXT_DATA_LEN 6 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) #define SMB2_ENCRYPTION_AES256_CCM cpu_to_le16(0x0003) #define SMB2_ENCRYPTION_AES256_GCM cpu_to_le16(0x0004) /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */ #define MIN_ENCRYPT_CTXT_DATA_LEN 4 struct smb2_encryption_neg_context { __le16 ContextType; /* 2 */ __le16 DataLength; __le32 Reserved; /* CipherCount usally 2, but can be 3 when AES256-GCM enabled */ __le16 CipherCount; /* AES128-GCM and AES128-CCM by default */ __le16 Ciphers[]; } __packed; /* See MS-SMB2 2.2.3.1.3 */ #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) /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */ #define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) /* Pattern_V1 */ /* Compression Flags */ #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000) #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED cpu_to_le32(0x00000001) struct smb2_compression_capabilities_context { __le16 ContextType; /* 3 */ __le16 DataLength; __le32 Reserved; __le16 CompressionAlgorithmCount; __le16 Padding; __le32 Flags; __le16 CompressionAlgorithms[3]; __u16 Pad; /* Some servers require pad to DataLen multiple of 8 */ /* Check if pad needed */ } __packed; /* * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4. * Its struct simply contains NetName, an array of Unicode characters */ struct smb2_netname_neg_context { __le16 ContextType; /* 5 */ __le16 DataLength; __le32 Reserved; __le16 NetName[]; /* hostname of target converted to UCS-2 */ } __packed; /* * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5 * and 2.2.4.1.5 */ /* Flags */ #define SMB2_ACCEPT_TRANSFORM_LEVEL_SECURITY 0x00000001 struct smb2_transport_capabilities_context { __le16 ContextType; /* 6 */ __le16 DataLength; __u32 Reserved; __le32 Flags; __u32 Pad; } __packed; /* * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6 * and 2.2.4.1.6 */ /* RDMA Transform IDs */ #define SMB2_RDMA_TRANSFORM_NONE 0x0000 #define SMB2_RDMA_TRANSFORM_ENCRYPTION 0x0001 #define SMB2_RDMA_TRANSFORM_SIGNING 0x0002 struct smb2_rdma_transform_capabilities_context { __le16 ContextType; /* 7 */ __le16 DataLength; __u32 Reserved; __le16 TransformCount; __u16 Reserved1; __u32 Reserved2; __le16 RDMATransformIds[]; } __packed; /* * For signing capabilities context see MS-SMB2 2.2.3.1.7 * and 2.2.4.1.7 */ /* Signing algorithms */ #define SIGNING_ALG_HMAC_SHA256 0 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0) #define SIGNING_ALG_AES_CMAC 1 #define SIGNING_ALG_AES_CMAC_LE cpu_to_le16(1) #define SIGNING_ALG_AES_GMAC 2 #define SIGNING_ALG_AES_GMAC_LE cpu_to_le16(2) struct smb2_signing_capabilities { __le16 ContextType; /* 8 */ __le16 DataLength; __le32 Reserved; __le16 SigningAlgorithmCount; __le16 SigningAlgorithms[]; /* Followed by padding to 8 byte boundary (required by some servers) */ } __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_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[]; } __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; /* * SMB2_SESSION_SETUP See MS-SMB2 section 2.2.5 */ /* 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; /* Currently defined SessionFlags */ #define SMB2_SESSION_FLAG_IS_GUEST 0x0001 #define SMB2_SESSION_FLAG_IS_GUEST_LE cpu_to_le16(0x0001) #define SMB2_SESSION_FLAG_IS_NULL 0x0002 #define SMB2_SESSION_FLAG_IS_NULL_LE cpu_to_le16(0x0002) #define SMB2_SESSION_FLAG_ENCRYPT_DATA 0x0004 #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; /* * SMB2_LOGOFF See MS-SMB2 section 2.2.7 */ 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; /* * SMB2_CLOSE See MS-SMB2 section 2.2.15 */ /* 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; /* opaque endianness */ __le64 VolatileFileId; /* opaque endianness */ } __packed; /* * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data) */ #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124 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; /* * SMB2_READ See MS-SMB2 section 2.2.19 */ /* For read request Flags field below, following flag is defined for SMB3.02 */ #define SMB2_READFLAG_READ_UNBUFFERED 0x01 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */ /* Channel field for read and write: exactly one of following flags can be set*/ #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) #define SMB2_CHANNEL_RDMA_TRANSFORM cpu_to_le32(0x00000003) /* SMB2 read request without RFC1001 length at the beginning */ 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 Flags; /* MBZ unless SMB3.02 or later */ __le32 Length; __le64 Offset; __le64 PersistentFileId; __le64 VolatileFileId; __le32 MinimumCount; __le32 Channel; /* MBZ except for SMB3 or later */ __le32 RemainingBytes; __le16 ReadChannelInfoOffset; __le16 ReadChannelInfoLength; __u8 Buffer[1]; } __packed; /* Read flags */ #define SMB2_READFLAG_RESPONSE_NONE cpu_to_le32(0x00000000) #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM cpu_to_le32(0x00000001) struct smb2_read_rsp { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 17 */ __u8 DataOffset; __u8 Reserved; __le32 DataLength; __le32 DataRemaining; __le32 Flags; __u8 Buffer[1]; } __packed; /* * SMB2_WRITE See MS-SMB2 section 2.2.21 */ /* For write request Flags field below the following flags are defined: */ #define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001 /* SMB2.1 or later */ #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002 /* SMB3.02 or later */ 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; /* opaque endianness */ __le64 VolatileFileId; /* opaque endianness */ __le32 Channel; /* MBZ unless SMB3.02 or later */ __le32 RemainingBytes; __le16 WriteChannelInfoOffset; __le16 WriteChannelInfoLength; __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; /* * SMB2_FLUSH See MS-SMB2 section 2.2.17 */ 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; /* * SMB2_NOTIFY See MS-SMB2 section 2.2.35 */ /* notify flags */ #define SMB2_WATCH_TREE 0x0001 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */ #define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001 #define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002 #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 /* SMB2 Notify Action Flags */ #define FILE_ACTION_ADDED 0x00000001 #define FILE_ACTION_REMOVED 0x00000002 #define FILE_ACTION_MODIFIED 0x00000003 #define FILE_ACTION_RENAMED_OLD_NAME 0x00000004 #define FILE_ACTION_RENAMED_NEW_NAME 0x00000005 #define FILE_ACTION_ADDED_STREAM 0x00000006 #define FILE_ACTION_REMOVED_STREAM 0x00000007 #define FILE_ACTION_MODIFIED_STREAM 0x00000008 #define FILE_ACTION_REMOVED_BY_DELETE 0x00000009 struct smb2_change_notify_req { struct smb2_hdr hdr; __le16 StructureSize; __le16 Flags; __le32 OutputBufferLength; __le64 PersistentFileId; /* opaque endianness */ __le64 VolatileFileId; /* opaque endianness */ __le32 CompletionFilter; __u32 Reserved; } __packed; struct smb2_change_notify_rsp { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 9 */ __le16 OutputBufferOffset; __le32 OutputBufferLength; __u8 Buffer[1]; /* array of file notify structs */ } __packed; #endif /* _COMMON_SMB2PDU_H */