internal static PacketOrByteArraySegment ParseEncapsulatedBytes(ByteArraySegment payload, FlagsRadioTapField flagsField)
{
var payloadPacketOrData = new PacketOrByteArraySegment();
MacFrame frame = null;
if (flagsField != null)
{
bool fcsPresent = ((flagsField.Flags & RadioTapFlags.FcsIncludedInFrame) == RadioTapFlags.FcsIncludedInFrame);
if (fcsPresent)
{
frame = MacFrame.ParsePacketWithFcs(payload);
}
else
{
frame = MacFrame.ParsePacket(payload);
}
}
else
{
frame = MacFrame.ParsePacket(payload);
}
if (frame == null)
{
payloadPacketOrData.TheByteArraySegment = payload;
}
else
{
payloadPacketOrData.ThePacket = frame;
}
return(payloadPacketOrData);
}
public OsiPresentationPacket(ByteArraySegment bas, Packet parent)
{
ParentPacket = parent;
UserData = new TLV(bas);
FullyEncodedData = new TLV(UserData.Value.Bytes, UserData);
PdvList = new TLV[2];
PdvList[0] = new TLV(FullyEncodedData.Value.Bytes, FullyEncodedData);
PresentationContextIdentifier = (ContextIdentifier)(PdvList[0].Value.RawBytes[0]);
PdvList[1] = new TLV(FullyEncodedData.Value.Bytes.EncapsulatedBytes(), FullyEncodedData);
this.header = bas;
this.header.Length = UserData.Bytes.Length - PdvList[1].Bytes.Length;
var payload = PdvList[1].Value.Bytes;
payloadPacketOrData = new PacketOrByteArraySegment();
switch (PresentationContextIdentifier)
{
case ContextIdentifier.Mms:
payloadPacketOrData.ThePacket = new MmsPacket(payload, this);
break;
default:
payloadPacketOrData.TheByteArraySegment = payload;
break;
}
}
public OsiSessionPacket(byte[] rawData, Packet parent)
{
this.ParentPacket = parent;
int offset = 0;
header = new ByteArraySegment(rawData);
PduType = (PduIdentifier)rawData[offset];
if (PduType == PduIdentifier.GiveToken)
{
offset += OsiSessionFileds.PiLength;
Pdu = new OsiSessionPdu();
Spdu = new OsiSessionPdu();
Pdu.Length = (int)rawData[offset];
offset += OsiSessionFileds.PduLiLength;
if (Pdu.Length > 0)
{
Pdu.PI = rawData[offset];
offset += 1;
rawData.CopyTo(Pdu.Value, offset);
}
SpduType = (SpduIdentifier)rawData[offset];
if (SpduType == SpduIdentifier.DataTransfer)
{
offset += OsiSessionFileds.SpiLength;
Spdu.Length = (int)rawData[offset];
offset += OsiSessionFileds.SpduLiLength;
if (SpduLength > 0)
{
Spdu = new OsiSessionPdu();
Spdu.PI = rawData[offset];
offset += 1;
rawData.CopyTo(Spdu.Value, offset);
}
header = new ByteArraySegment(rawData);
header.Length = OsiSessionFileds.PiLength + OsiSessionFileds.PduLiLength + PduLength +
OsiSessionFileds.SpduLiLength + OsiSessionFileds.SpiLength + SpduLength;
var payload = header.EncapsulatedBytes();
payloadPacketOrData = new PacketOrByteArraySegment();
payloadPacketOrData.ThePacket = new OsiPresentationPacket(payload, this);
parent.PayloadPacket = this;
}
}
}
public CotpPacket(ByteArraySegment bas, Packet parent)
{
this.ParentPacket = parent;
header = bas;
header.Length = BigEndianBitConverter.Big.ToInt8(new ByteArraySegment(bas.Bytes, bas.Offset, 1).ActualBytes(), 0) +
CotpFileds.LengthLength;
byte num_eot = header.ActualBytes()[CotpFileds.LengthLength + CotpFileds.PduTypeLength];
this.Type = (TpduType)(BigEndianBitConverter.Big.ToInt8(header.ActualBytes(), 1));
switch (Type)
{
case TpduType.ConnectioinRequest:
break;
case TpduType.ConnectionConfirm:
break;
case TpduType.DataTransfer:
TpduNumber = num_eot & TPDU_NUM_MASK;
LastDataUnit = Convert.ToBoolean(num_eot >> LAST_DU_BIT);
break;
case TpduType.DisconnectionRequest:
break;
case TpduType.ExpectedDataTransfer:
break;
default:
break;
}
var payload = header.EncapsulatedBytes();
payloadPacketOrData = new PacketOrByteArraySegment();
payloadPacketOrData.TheByteArraySegment = payload;
}
/// <summary>
/// Used by the Ieee80211PpiPacket constructor.
/// </summary>
/// <param name="header">
/// A <see cref="ByteArraySegment" />
/// </param>
/// <param name="commonField">
/// The <see cref="PpiCommon" /> object in the PPI packet or null if not available
/// </param>
/// <returns>
/// A <see cref="PacketOrByteArraySegment" />
/// </returns>
internal static PacketOrByteArraySegment ParseEncapsulatedBytes(ByteArraySegment header, PpiCommon commonField)
{
// slice off the payload
var payload = header.EncapsulatedBytes();
var payloadPacketOrData = new PacketOrByteArraySegment();
MacFrame frame = null;
if (commonField != null)
{
var fcsPresent = ((commonField.Flags & PpiCommon.CommonFlags.FcsIncludedInFrame) == PpiCommon.CommonFlags.FcsIncludedInFrame);
if (fcsPresent)
{
frame = MacFrame.ParsePacketWithFcs(payload);
}
else
{
frame = MacFrame.ParsePacket(payload);
}
}
else
{
frame = MacFrame.ParsePacket(payload);
}
if (frame == null)
{
payloadPacketOrData.TheByteArraySegment = payload;
}
else
{
payloadPacketOrData.ThePacket = frame;
}
return(payloadPacketOrData);
}
/// <summary>
/// Used by the Ieee80211PpiPacket constructor.
/// </summary>
/// <param name="header">
/// A <see cref="ByteArraySegment"/>
/// </param>
/// <param name="commonField">
/// The <see cref="PpiCommon"/> object in the PPI packet or null if not available
/// </param>
/// <returns>
/// A <see cref="PacketOrByteArraySegment"/>
/// </returns>
internal static PacketOrByteArraySegment ParseEncapsulatedBytes (ByteArraySegment header, PpiCommon commonField)
{
// slice off the payload
var payload = header.EncapsulatedBytes ();
var payloadPacketOrData = new PacketOrByteArraySegment ();
MacFrame frame = null;
if (commonField != null)
{
bool fcsPresent = ((commonField.Flags & PpiCommon.CommonFlags.FcsIncludedInFrame) == PpiCommon.CommonFlags.FcsIncludedInFrame);
if (fcsPresent)
{
frame = MacFrame.ParsePacketWithFcs (payload);
}
else
{
frame = MacFrame.ParsePacket (payload);
}
}
else
{
frame = MacFrame.ParsePacket (payload);
}
if (frame == null)
{
payloadPacketOrData.TheByteArraySegment = payload;
}
else
{
payloadPacketOrData.ThePacket = frame;
}
return payloadPacketOrData;
}
