/// <summary>
/// Initializes a new instance of the <see cref="DhcpMessageEventArgs"/> class.
/// </summary>
/// <param name="channel">Socket channel request is recived on.</param>
/// <param name="data">Raw data received from socket.</param>
public DhcpMessageEventArgs(SocketChannel channel, SocketBuffer data)
{
if (channel == null) throw new ArgumentNullException("channel");
this.Channel = channel;
if (data == null) throw new ArgumentNullException("data");
this.ChannelBuffer = data;
try
{
// Parse the dhcp message
this.RequestMessage = new DhcpMessage(data.Buffer);
// get message options
MessageOptions options = new MessageOptions();
options.MessageType = this.RequestMessage.GetOptionData(DhcpOption.DhcpMessageType);
// get message type option
options.ClientId = this.RequestMessage.GetOptionData(DhcpOption.ClientId);
if (options.ClientId == null)
{
// if the client id is not provided use the client hardware address from the message
options.ClientId = this.RequestMessage.ClientHardwareAddress.ToArray();
}
// get host name option
options.HostName = this.RequestMessage.GetOptionData(DhcpOption.Hostname);
// get address request option
options.AddressRequest = this.RequestMessage.GetOptionData(DhcpOption.AddressRequest);
//get server identifier option
options.ServerIdentifier = this.RequestMessage.GetOptionData(DhcpOption.ServerIdentifier);
// get paramerter list opiton
options.ParameterList = this.RequestMessage.GetOptionData(DhcpOption.ParameterList);
// set the response options object
this.RequestOptions = options;
// set the response binding object
ResponseBinding = new BindingLease(
ByteUtility.GetString(this.RequestOptions.ClientId),
this.RequestMessage.ClientHardwareAddress,
this.RequestMessage.ClientAddress,
this.RequestOptions.HostName,
DateTime.MinValue,
this.RequestMessage.SessionId,
LeaseState.Unassigned);
// log that the packet was successfully parsed
Logger.WriteDebug(this, "PACKET with message id " +
this.RequestMessage.SessionId.ToHexString("0x") + " successfully parsed from client endpoint " +
this.Channel.RemoteEndpoint.ToString());
Logger.WriteDebug(this.RequestMessage.ToString());
}
catch (Exception ex)
{
Logger.WriteError(this, "Error parsing message:" + ex.Message.ToString(), ex);
return;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DhcpMessageEventArgs"/> class.
/// </summary>
/// <param name="channel">Socket channel request is recived on.</param>
/// <param name="data">Raw data received from socket.</param>
public DhcpMessageEventArgs(SocketChannel channel, SocketBuffer data)
{
if (channel == null)
{
throw new ArgumentNullException("channel");
}
this.Channel = channel;
if (data == null)
{
throw new ArgumentNullException("data");
}
this.ChannelBuffer = data;
try
{
// Parse the dhcp message
this.RequestMessage = new DhcpMessage(data.Buffer);
// get message options
MessageOptions options = new MessageOptions();
options.MessageType = this.RequestMessage.GetOptionData(DhcpOption.DhcpMessageType);
// get message type option
options.ClientId = this.RequestMessage.GetOptionData(DhcpOption.ClientId);
if (options.ClientId == null)
{
// if the client id is not provided use the client hardware address from the message
options.ClientId = this.RequestMessage.ClientHardwareAddress.ToArray();
}
// get host name option
options.HostName = this.RequestMessage.GetOptionData(DhcpOption.Hostname);
// get address request option
options.AddressRequest = this.RequestMessage.GetOptionData(DhcpOption.AddressRequest);
//get server identifier option
options.ServerIdentifier = this.RequestMessage.GetOptionData(DhcpOption.ServerIdentifier);
// get paramerter list opiton
options.ParameterList = this.RequestMessage.GetOptionData(DhcpOption.ParameterList);
// set the response options object
this.RequestOptions = options;
// set the response binding object
ResponseBinding = new BindingLease(
ByteUtility.GetString(this.RequestOptions.ClientId),
this.RequestMessage.ClientHardwareAddress,
this.RequestMessage.ClientAddress,
this.RequestOptions.HostName,
DateTime.MinValue,
this.RequestMessage.SessionId,
LeaseState.Unassigned);
// log that the packet was successfully parsed
Logger.WriteDebug(this, "PACKET with message id " +
this.RequestMessage.SessionId.ToHexString("0x") + " successfully parsed from client endpoint " +
this.Channel.RemoteEndpoint.ToString());
Logger.WriteDebug(this.RequestMessage.ToString());
}
catch (Exception ex)
{
Logger.WriteError(this, "Error parsing message:" + ex.Message.ToString(), ex);
return;
}
}
