public BeaconFrame(PacketDotNet.Ieee80211.BeaconFrame frame, DateTime TimeStamp)
{
this.Frame = frame;
this.Manufacturer = OuiParser.GetOuiByMac(frame.SourceAddress.GetAddressBytes());
this.MacAddress = frame.SourceAddress.GetAddressBytes();
this.TimeStamp = TimeStamp;
foreach (InformationElement element in frame.InformationElements)
{
switch (element.Id)
{
case InformationElement.ElementId.ServiceSetIdentity:
{
SSID = ASCIIEncoding.ASCII.GetString(element.Value);
if (SSID != null && SSID.Length > 0)
{
IsHidden = SSID[0] == 0;
}
break;
}
case InformationElement.ElementId.DsParameterSet:
{
if (element.Value != null && element.Value.Length >= 3)
{
Channel = element.Value[2];
}
break;
}
case InformationElement.ElementId.VendorSpecific:
{
//correct me if I was wrong here...
if (element.Bytes.Length > 5)
{
if (element.Bytes[5] == 4)
{
WPS_Enabled = true;
}
}
break;
}
}
}
if (String.IsNullOrEmpty(SSID))
{
SSID = "";
}
}
/// <summary>
/// Parses the <see cref="PacketDotNet.Utils.ByteArraySegment"/> into a MacFrame.
/// </summary>
/// <returns>
/// The parsed MacFrame or null if it could not be parsed.
/// </returns>
/// <param name='bas'>
/// The bytes of the packet. bas.Offset should point to the first byte in the mac frame.
/// </param>
/// <remarks>If the provided bytes contain the FCS then call <see cref="MacFrame.ParsePacketWithFcs"/> instead. The presence of the
/// FCS is usually determined by configuration of the device used to capture the packets.</remarks>
public static MacFrame ParsePacket(ByteArraySegment bas)
{
if (bas.Length < MacFields.FrameControlLength)
{
//there isn't enough data to even try and work out what type of packet it is
return(null);
}
//this is a bit ugly as we will end up parsing the framecontrol field twice, once here and once
//inside the packet constructor. Could create the framecontrol and pass it to the packet but I think that is equally ugly
FrameControlField frameControl = new FrameControlField(
EndianBitConverter.Big.ToUInt16(bas.Bytes, bas.Offset));
MacFrame macFrame = null;
log.DebugFormat("SubType {0}", frameControl.SubType);
switch (frameControl.SubType)
{
case FrameControlField.FrameSubTypes.ManagementAssociationRequest:
{
macFrame = new AssociationRequestFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementAssociationResponse:
{
macFrame = new AssociationResponseFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementReassociationRequest:
{
macFrame = new ReassociationRequestFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementReassociationResponse:
{
macFrame = new AssociationResponseFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementProbeRequest:
{
macFrame = new ProbeRequestFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementProbeResponse:
{
macFrame = new ProbeResponseFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementReserved0:
break; //TODO
case FrameControlField.FrameSubTypes.ManagementReserved1:
break; //TODO
case FrameControlField.FrameSubTypes.ManagementBeacon:
{
macFrame = new BeaconFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementATIM:
break; //TODO
case FrameControlField.FrameSubTypes.ManagementDisassociation:
{
macFrame = new DisassociationFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementAuthentication:
{
macFrame = new AuthenticationFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementDeauthentication:
{
macFrame = new DeauthenticationFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementAction:
{
macFrame = new ActionFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ManagementReserved3:
break; //TODO
case FrameControlField.FrameSubTypes.ControlBlockAcknowledgmentRequest:
{
macFrame = new BlockAcknowledgmentRequestFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlBlockAcknowledgment:
{
macFrame = new BlockAcknowledgmentFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlPSPoll:
break; //TODO
case FrameControlField.FrameSubTypes.ControlRTS:
{
macFrame = new RtsFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlCTS:
{
macFrame = new CtsFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlACK:
{
macFrame = new AckFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlCFEnd:
{
macFrame = new ContentionFreeEndFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.ControlCFEndCFACK:
break; //TODO
case FrameControlField.FrameSubTypes.Data:
case FrameControlField.FrameSubTypes.DataCFACK:
case FrameControlField.FrameSubTypes.DataCFPoll:
case FrameControlField.FrameSubTypes.DataCFAckCFPoll:
{
macFrame = new DataDataFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.DataNullFunctionNoData:
case FrameControlField.FrameSubTypes.DataCFAckNoData:
case FrameControlField.FrameSubTypes.DataCFPollNoData:
case FrameControlField.FrameSubTypes.DataCFAckCFPollNoData:
{
macFrame = new NullDataFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.QosData:
case FrameControlField.FrameSubTypes.QosDataAndCFAck:
case FrameControlField.FrameSubTypes.QosDataAndCFPoll:
case FrameControlField.FrameSubTypes.QosDataAndCFAckAndCFPoll:
{
macFrame = new QosDataFrame(bas);
break;
}
case FrameControlField.FrameSubTypes.QosNullData:
case FrameControlField.FrameSubTypes.QosCFAck:
case FrameControlField.FrameSubTypes.QosCFPoll:
case FrameControlField.FrameSubTypes.QosCFAckAndCFPoll:
{
macFrame = new QosNullDataFrame(bas);
break;
}
default:
//this is an unsupported (and unknown) packet type
break;
}
return(macFrame);
}
public BeaconFrame(PacketDotNet.Ieee80211.BeaconFrame frame, DateTime TimeStamp)
: this(frame, TimeStamp, 0)
{
}