header

import "github.com/TheManticoreProject/Manticore/network/smb/smb_v20/message/header"

const (
    // SMB2_HEADER_SIZE is the fixed wire size, in bytes, of an SMB2 packet header.
    SMB2_HEADER_SIZE = 64

    // SMB2_HEADER_STRUCTURE_SIZE is the value the StructureSize field MUST carry.
    SMB2_HEADER_STRUCTURE_SIZE = 64

    // SMB2_SIGNATURE_SIZE is the size, in bytes, of the header Signature field.
    SMB2_SIGNATURE_SIZE = 16
)

var SMB2ProtocolId = [4]byte{0xFE, 'S', 'M', 'B'}

type Header struct {
    // ProtocolId (4 bytes): MUST be 0xFE 'S' 'M' 'B'.
    ProtocolId [4]byte

    // StructureSize (2 bytes): MUST be set to 64.
    StructureSize types.USHORT

    // CreditCharge (2 bytes): In the SMB 2.0.2 dialect this field MUST be 0 and
    // ignored on receipt. In later dialects it indicates the number of credits
    // the request consumes.
    CreditCharge types.USHORT

    // Status (4 bytes): The (ChannelSequence,Reserved)/Status union. In the
    // SMB 2.0.2 and SMB 2.1 dialects this is the Status field in both requests
    // (client sets 0) and responses. In the SMB 3.x family it is reinterpreted
    // as ChannelSequence(2)+Reserved(2) in a request; that reinterpretation is
    // deferred to the SMB 3.x implementation.
    Status types.ULONG

    // Command (2 bytes): The command code of this packet.
    Command codes.CommandCode

    // Credit (2 bytes): CreditRequest on a request / CreditResponse on a response.
    Credit types.USHORT

    // Flags (4 bytes): Indicates how to process the operation.
    Flags flags.Flags

    // NextCommand (4 bytes): Offset, in bytes, from the start of this header to
    // the next 8-byte-aligned header in a compounded message, or 0 if this is
    // the last (or only) command.
    NextCommand types.ULONG

    // MessageId (8 bytes): Uniquely identifies a request/response pair across all
    // messages on the same transport connection.
    MessageId types.UINT64

    // Reserved (4 bytes): SYNC form only; SHOULD be 0. Overlaps AsyncId in the
    // ASYNC form.
    Reserved types.ULONG

    // TreeId (4 bytes): SYNC form only; identifies the tree connect for the
    // command. Overlaps AsyncId in the ASYNC form.
    TreeId types.ULONG

    // AsyncId (8 bytes): ASYNC form only; identifies an operation being processed
    // asynchronously. Overlaps Reserved+TreeId in the SYNC form.
    AsyncId types.UINT64

    // SessionId (8 bytes): Uniquely identifies the established session for the
    // command. MUST be 0 for an SMB2 NEGOTIATE.
    SessionId types.UINT64

    // Signature (16 bytes): The message signature if SMB2_FLAGS_SIGNED is set;
    // otherwise all zero.
    Signature [SMB2_SIGNATURE_SIZE]byte
}

func NewHeader() *Header

func (h *Header) AddFlags(value flags.Flags)

func (h *Header) GetAsyncId() types.UINT64

func (h *Header) GetCommand() codes.CommandCode

func (h *Header) GetMessageId() types.UINT64

func (h *Header) GetSessionId() types.UINT64

func (h *Header) GetTreeId() types.ULONG

func (h *Header) HasValidProtocolId() bool

func (h *Header) IsAsync() bool

func (h *Header) IsRequest() bool

func (h *Header) IsResponse() bool

func (h *Header) Marshal() ([]byte, error)

func (h *Header) SetAsyncId(asyncId types.UINT64)

func (h *Header) SetCommand(command codes.CommandCode)

func (h *Header) SetFlags(value flags.Flags)

func (h *Header) SetMessageId(messageId types.UINT64)

func (h *Header) SetSessionId(sessionId types.UINT64)

func (h *Header) SetTreeId(treeId types.ULONG)

func (h *Header) Unmarshal(data []byte) (int, error)