public static string ConvertPacketToTreeString(IEnumerable ps)
{
using (TextWriter writer = new StringWriter())
{
int count = 0;
foreach (object o in ps)
{
LogPacket p = o as LogPacket;
DataFrame f = o as DataFrame;
if (p != null)
{
writer.WriteLine(GetHeader(p));
WriteNodeToTreeString(writer, "", p.Frame.Root);
}
else if (f != null)
{
writer.WriteLine("Packet {0}", count);
WriteNodeToTreeString(writer, "", f.Root);
}
count++;
}
return(writer.ToString());
}
}
public static string ConvertPacketToString(IEnumerable ps)
{
using (TextWriter writer = new StringWriter())
{
int count = 0;
foreach (object o in ps)
{
LogPacket p = o as LogPacket;
DataFrame f = o as DataFrame;
if (p != null)
{
writer.Write(ConvertPacketToString(p));
}
else if (f != null)
{
writer.WriteLine("Packet {0}", count);
writer.Write(ConvertPacketToString(f));
}
count++;
}
return(writer.ToString());
}
}
public static string ConvertPacketToString(LogPacket p)
{
using (TextWriter writer = new StringWriter())
{
writer.WriteLine(GetHeader(p));
writer.WriteLine(ConvertPacketToString(p.Frame));
return(writer.ToString());
}
}
public static string ConvertPacketToTreeString(LogPacket p)
{
using (TextWriter writer = new StringWriter())
{
writer.WriteLine(GetHeader(p));
WriteNodeToTreeString(writer, "", p.Frame.Root);
return(writer.ToString());
}
}
/// <summary>
/// Add a packet to the buffer to write
/// </summary>
/// <param name="packet">The packet to write</param>
public void AddPacket(LogPacket packet)
{
lock (_packets)
{
_packets[_currPos++] = packet;
if (_currPos == MAX_PACKETS)
{
Flush();
}
}
}
/// <summary>
/// Convert a packet to a hex string format
/// </summary>
/// <param name="p">The packet to convert</param>
/// <returns>The converted string</returns>
public static string ConvertBinaryPacketToString(LogPacket p)
{
using (TextWriter writer = new StringWriter())
{
writer.WriteLine(GetHeader(p));
writer.WriteLine(GeneralUtils.BuildHexDump(16, p.Frame.ToArray()));
writer.WriteLine();
return(writer.ToString());
}
}
private static void ConvertPacketsToHtml(TextWriter textWriter, IEnumerable ps, bool forcebin)
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
settings.OmitXmlDeclaration = true;
using (XmlWriter writer = XmlWriter.Create(textWriter, settings))
{
int count = 0;
writer.WriteStartElement("html");
writer.WriteStartElement("head");
writer.WriteElementString("title", "Packet Log");
writer.WriteEndElement();
writer.WriteStartElement("body");
foreach (object o in ps)
{
LogPacket p = o as LogPacket;
DataFrame f = o as DataFrame;
ColorValue c = ColorValue.White;
if (p != null)
{
writer.WriteElementString("h2", String.Format("Time {0} - Tag '{1}' - Network '{2}'",
p.Timestamp.ToString(), p.Tag, p.Network));
f = p.Frame;
c = p.Color;
}
else
{
writer.WriteElementString("h2", String.Format("Packet {0}", count));
}
count++;
if (f.IsBasic || forcebin)
{
WriteBinaryPacketAsHtml(writer, f, c);
}
else if (f.IsDataString)
{
WriteTextPacketAsHtml(writer, f, c);
}
else
{
WriteTreePacketAsHtml(writer, f, c);
}
}
writer.WriteEndElement();
writer.WriteEndElement();
}
}
private static LogPacket ReadPacket(DateTime packetTime, Guid netId, byte[] data)
{
MemoryStream stm = new MemoryStream(data);
DataReader reader = new DataReader(stm);
LogPacket ret = null;
try
{
EthernetPacket eth = ReadEthernetPacket(reader);
if (eth.PacketType == EthernetPacket.ETHERNET_TYPE_IPv4)
{
IpPacket ip = ReadIpv4Packet(reader);
if (ip.IpType == IpPacket.IP_TYPE_TCP)
{
TcpPacket tcp = ReadTcpPacket(reader, ip.DataLength);
if (tcp.Data.Length > 0)
{
ret = new LogPacket("TCP", netId, Guid.NewGuid(), String.Format("{0}:{1} => {2}:{3}",
ip.SrcAddress, tcp.SrcPort, ip.DestAddress, tcp.DestPort), new DataFrame(tcp.Data),
new ColorValue(0xFF, 0xFF, 0xFF, 0xFF), packetTime);
}
}
else if (ip.IpType == IpPacket.IP_TYPE_UDP)
{
UdpPacket udp = ReadUdpPacket(reader);
ret = new LogPacket("UDP", netId, Guid.NewGuid(), String.Format("{0}:{1} => {2}:{3}",
ip.SrcAddress, udp.SrcPort, ip.DestAddress, udp.DestPort), new DataFrame(udp.Data),
new ColorValue(0xFF, 0xFF, 0xFF, 0xFF), packetTime);
}
else
{
// Do nothing
}
}
}
catch (EndOfStreamException)
{
ret = null;
}
catch (ArgumentException)
{
}
return(ret);
}
/// <summary>
/// Reads the packets from file.
/// </summary>
/// <returns>The packets from file.</returns>
/// <param name="filename">The filename</param>
public static IEnumerable <LogPacket> ReadPacketsFromFile(string filename)
{
using (var stream = File.OpenRead(filename))
{
List <LogPacket> packets = new List <LogPacket>();
try
{
while (true)
{
packets.Add(LogPacket.ReadFromStream(stream));
}
}
catch (EndOfStreamException)
{
}
return(packets);
}
}
/// <summary>
/// Flush the current buffer to the stream
/// </summary>
public void Flush()
{
lock (_packets)
{
if (_currPos > 0)
{
LogPacket[] arr = _packets;
if (_currPos < MAX_PACKETS)
{
arr = new LogPacket[_currPos];
Array.Copy(_packets, 0, arr, 0, _currPos);
}
GeneralUtils.SerializeLogPackets(arr, _stm);
Array.Clear(_packets, 0, _packets.Length);
_currPos = 0;
}
}
}
public static List <LogPacket> EnumerableToPackets(IEnumerable ps)
{
List <LogPacket> packets = new List <LogPacket>();
foreach (object o in ps)
{
LogPacket p = o as LogPacket;
if (p == null)
{
DataFrame f = o as DataFrame;
if (f == null)
{
continue;
}
p = new LogPacket("Unknown", Guid.Empty, "Unknown", f, ColorValue.White);
}
packets.Add(p);
}
return(packets);
}
public static void SavePackets(string filename, IEnumerable ps)
{
List <LogPacket> packets = new List <LogPacket>();
foreach (object o in ps)
{
LogPacket p = o as LogPacket;
if (p == null)
{
DataFrame f = o as DataFrame;
if (f == null)
{
continue;
}
p = new LogPacket("Unknown", Guid.Empty, "Unknown", f, ColorValue.White);
}
packets.Add(p);
}
using (FileStream stm = File.Open(filename, FileMode.Create))
{
GeneralUtils.SerializeLogPackets(packets.ToArray(), stm);
}
}
public static string ConvertPacketsToHtml(LogPacket p)
{
return(ConvertPacketsToHtml(new LogPacket[] { p }));
}
/// <summary>
/// Load a list of packets from a PCAP (really basic mode)
/// </summary>
/// <param name="fileName">The file to read from</param>l
/// <param name="raw">Whether to import the raw data or parse for TCP/UDP data</param>
/// <returns>The array of LogPackets</returns>
public static LogPacket[] Load(string fileName, bool raw)
{
List <LogPacket> packets = new List <LogPacket>();
using (Stream stm = File.OpenRead(fileName))
{
DataReader reader = new DataReader(stm);
bool littleEndian = true;
uint magic = reader.ReadUInt32(littleEndian);
if (magic == 0xa1b2c3d4)
{
// OK
}
else if (magic == 0xd4c3b2a1)
{
littleEndian = false;
}
else
{
throw new ArgumentException(Resources.PcapReader_InvalidMagic);
}
reader.ReadUInt16(littleEndian); // Major
reader.ReadUInt16(littleEndian); // Minor
reader.ReadInt32(littleEndian); // Zone
reader.ReadUInt32(littleEndian); // Sig figures
reader.ReadUInt32(littleEndian); // Snap length
uint netType = reader.ReadUInt32(littleEndian);
if (!raw && netType != 1)
{
throw new ArgumentException(Resources.PcapReader_OnlyEthernet);
}
try
{
Guid netId = Guid.NewGuid();
while (reader.DataLeft > 0)
{
int secs = reader.ReadInt32(littleEndian);
int usecs = reader.ReadInt32(littleEndian);
DateTime captureTime = GeneralUtils.FromUnixTime(secs).AddMilliseconds(usecs / 10);
int caplen = reader.ReadInt32(littleEndian);
int origlen = reader.ReadInt32(littleEndian);
byte[] data = reader.ReadBytes(caplen);
if (raw)
{
packets.Add(new LogPacket("PCAP Raw", netId, Guid.NewGuid(), "Unknown",
new DataFrame(data), new ColorValue(0xFF, 0xFF, 0xFF, 0xFF),
captureTime));
}
else
{
LogPacket p = ReadPacket(captureTime, netId, data);
if (p != null)
{
packets.Add(p);
}
}
}
}
catch (EndOfStreamException)
{
}
}
return(packets.ToArray());
}
/// <summary>
/// Dump a text packet to stdout
/// </summary>
/// <param name="packet">The packet to dump</param>
public static void DumpTextPacket(LogPacket packet)
{
Console.Out.WriteLine(ConvertTextPacketToString(packet));
}
private static string GetHeader(LogPacket p)
{
return(String.Format("Time {0} - Tag '{1}' - Network '{2}'",
p.Timestamp.ToString(), p.Tag, p.Network));
}
public static string ConvertPacketToTreeString(LogPacket p)
{
return(ConvertPacketToTreeString(new LogPacket[] { p }));
}
