/// <summary>
/// to new a Smb request packet in type of the Command in SmbHeader.
/// </summary>
/// <param name="messageBytes">bytes contains packet</param>
/// <returns>
/// the new request packet.
/// the null means that the utility don't know how to create the request.
/// </returns>
protected virtual SmbPacket CreateSmbRequestPacket(byte[] messageBytes)
{
SmbPacket smbRequest = null;
using (MemoryStream stream = new MemoryStream(messageBytes, true))
{
using (Channel channel = new Channel(null, stream))
{
//read smb header and new SmbPacket
if (messageBytes.Length >= CifsMessageUtils.PACKET_MINIMUM_LENGTH)
{
SmbHeader smbHeader = channel.Read <SmbHeader>();
smbRequest = CifsMessageUtils.CreateSmbRequestPacket(smbHeader, channel);
}
}
}
return(smbRequest);
}
/// <summary>
/// to read the andx packet from the channel
/// </summary>
/// <param name="channel">the channel started with the SmbParameters of the andx.</param>
/// <returns>the size in bytes of the SmbParameters, SmbData and andx if existed of the andx.</returns>
internal int ReadAndxFromChannel(Channel channel)
{
int consumedLen = 0;
if (this.AndxCommand != SmbCommand.SMB_COM_NO_ANDX_COMMAND)
{
SmbHeader andxHeader = this.SmbHeader;
andxHeader.Protocol = CifsMessageUtils.SMB_PROTOCOL_ANDXPACKET;
andxHeader.Command = this.AndxCommand;
this.andxPacket = CifsMessageUtils.CreateSmbRequestPacket(andxHeader, channel);
this.andxPacket.SmbHeader = andxHeader;
consumedLen += this.andxPacket.ReadParametersFromChannel(channel);
consumedLen += this.andxPacket.ReadDataFromChannel(channel);
SmbBatchedRequestPacket batchedRequest = this.andxPacket as SmbBatchedRequestPacket;
if (batchedRequest != null)
{
consumedLen += batchedRequest.ReadAndxFromChannel(channel);
}
}
return(consumedLen);
}