public void PrintString()
{
Console.WriteLine("Loading the sample capture file");
var dev = new SharpPcap.LibPcap.CaptureFileReaderDevice(NUnitSetupClass.CaptureDirectory + "arp_request_response.pcap");
dev.Open();
Console.WriteLine("Reading packet data");
dev.GetNextPacket();
var rawPacket = dev.GetNextPacket();
dev.Close();
Console.WriteLine("Printing human readable string");
Console.WriteLine(rawPacket.ToString());
}
public unsafe void BenchmarkICaptureDeviceUnsafe()
{
int packetsRead = 0;
var startTime = DateTime.Now;
while(packetsRead < packetsToRead)
{
ICaptureDevice captureDevice = new SharpPcap.LibPcap.CaptureFileReaderDevice("../../capture_files/10k_packets.pcap");
captureDevice.Open();
RawCapture rawCapture = null;
do
{
rawCapture = captureDevice.GetNextPacket();
packetsRead++;
}
while(rawCapture != null);
captureDevice.Close();
}
var endTime = DateTime.Now;
var rate = new Rate(startTime, endTime, packetsRead, "packets captured");
Console.WriteLine("{0}", rate.ToString());
}
public unsafe void BenchmarkICaptureDeviceUnsafe()
{
int packetsRead = 0;
var startTime = DateTime.Now;
while (packetsRead < packetsToRead)
{
ICaptureDevice captureDevice = new SharpPcap.LibPcap.CaptureFileReaderDevice(TestHelper.GetFile("10k_packets.pcap"));
captureDevice.Open();
RawCapture rawCapture = null;
do
{
rawCapture = captureDevice.GetNextPacket();
packetsRead++;
}while (rawCapture != null);
captureDevice.Close();
}
var endTime = DateTime.Now;
var rate = new Rate(startTime, endTime, packetsRead, "packets captured");
Console.WriteLine("{0}", rate.ToString());
}
public void BenchmarkICaptureDevice()
{
int packetsRead = 0;
var startTime = DateTime.Now;
while (packetsRead < packetsToRead)
{
ICaptureDevice captureDevice = new SharpPcap.LibPcap.CaptureFileReaderDevice(TestHelper.GetFile("10k_packets.pcap"));
captureDevice.Open();
RawCapture rawCapture = null;
do
{
rawCapture = captureDevice.GetNextPacket();
// Parse the packet using PacketDotNet
if (rawCapture != null)
{
Packet.ParsePacket(rawCapture.LinkLayerType, rawCapture.Data);
}
packetsRead++;
}while (rawCapture != null);
captureDevice.Close();
}
var endTime = DateTime.Now;
var rate = new Rate(startTime, endTime, packetsRead, "packets parsed");
Console.WriteLine("{0}", rate.ToString());
}
void openfile(string capFile)
{
try
{
this.device.StopCapture();
this.device.Close();
}
catch (Exception)
{
;
}
this.packets = new ArrayList();
this.dataGridView1.Rows.Clear();
SharpPcap.LibPcap.CaptureFileReaderDevice captureFileReader = new SharpPcap.LibPcap.CaptureFileReaderDevice(capFile);
SharpPcap.RawCapture pPacket;
int indx = 0;
// Go through all packets in the file
while ((pPacket = captureFileReader.GetNextPacket()) != null)
{
try
{
packet temp = new packet(pPacket);
temp.index = indx;
indx++;
this.packets.Add(temp);
// if (filter_check(temp))
// {
if (this.dataGridView1.InvokeRequired)
{
this.dataGridView1.BeginInvoke(new setDataGridViewDelegate(setDataGridView), new object[] { temp });
}
else
{
int index = this.dataGridView1.Rows.Add();
this.dataGridView1.Rows[index].DefaultCellStyle.BackColor = Color.FromName(temp.color);
this.dataGridView1.Rows[index].Cells[0].Value = temp.time;
this.dataGridView1.Rows[index].Cells[1].Value = temp.srcIp;
this.dataGridView1.Rows[index].Cells[2].Value = temp.destIp;
this.dataGridView1.Rows[index].Cells[3].Value = temp.protocol;
this.dataGridView1.Rows[index].Cells[4].Value = temp.info;
this.dataGridView1.Rows[index].Cells[5].Value = temp.index;
this.dataGridView1.FirstDisplayedScrollingRowIndex = this.dataGridView1.Rows.Count - 1;
}
// }
}
catch (Exception)
{
;
}
}
//this.is_saved = true;
captureFileReader.Close();
MessageBox.Show("读取完毕");
}
public void BenchmarkICaptureDevice()
{
int packetsRead = 0;
var startTime = DateTime.Now;
while(packetsRead < packetsToRead)
{
ICaptureDevice captureDevice = new SharpPcap.LibPcap.CaptureFileReaderDevice("../../capture_files/10k_packets.pcap");
captureDevice.Open();
RawCapture rawCapture = null;
do
{
rawCapture = captureDevice.GetNextPacket();
// Parse the packet using PacketDotNet
if(rawCapture != null)
Packet.ParsePacket(rawCapture.LinkLayerType, rawCapture.Data);
packetsRead++;
}
while(rawCapture != null);
captureDevice.Close();
}
var endTime = DateTime.Now;
var rate = new Rate(startTime, endTime, packetsRead, "packets parsed");
Console.WriteLine("{0}", rate.ToString());
}
//
//open file
//
private void open_Click(object sender, EventArgs e)
{
System.Windows.Forms.OpenFileDialog openfile = new OpenFileDialog();
openfile.InitialDirectory = Environment.CurrentDirectory;
openfile.Filter = "pcap files (*.pcap)|*.pcap";
openfile.CheckFileExists = true;
openfile.RestoreDirectory = true;
if (openfile.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string name = openfile.FileName;
listView1.Items.Clear();
this.packets = new ArrayList();
SharpPcap.LibPcap.CaptureFileReaderDevice reader = new SharpPcap.LibPcap.CaptureFileReaderDevice(name);
RawCapture rawp;
try
{
rawp = reader.GetNextPacket();
while (rawp != null)
{
packet temp = new packet(rawp);
packets.Add(temp);
temp.index = (listView1.Items.Count + 1);
ListViewItem item = new ListViewItem(new string[] { temp.index.ToString(), temp.time, temp.source, temp.destination, temp.protocol, temp.information });
item.BackColor = Color.FromName(temp.color);
listView1.Items.Add(item);
rawp = reader.GetNextPacket();
}
MessageBox.Show("success!");
}
catch (Exception)
{
MessageBox.Show("fail!");
}
}
}
private void button5_Click(object sender, EventArgs e)
{
if (this.is_saved == true || MessageBox.Show("不保存并读取文件？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
{
try
{
this.device.StopCapture();
this.device.Close();
}
catch (Exception)
{
;
}
string capFile = "";
OpenFileDialog ofd = new OpenFileDialog();
ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Templates);
ofd.Filter = "PCAP(*.pcap)|*.pcap";
ofd.ValidateNames = true;
ofd.CheckFileExists = true;
ofd.CheckPathExists = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
this.packets = new ArrayList();
this.dataGridView1.Rows.Clear();
capFile = ofd.FileName;
SharpPcap.LibPcap.CaptureFileReaderDevice captureFileReader = new SharpPcap.LibPcap.CaptureFileReaderDevice(capFile);
SharpPcap.RawCapture pPacket;
// Go through all packets in the file
while ((pPacket = captureFileReader.GetNextPacket()) != null)
{
try
{
packet temp = new packet(pPacket);
this.packets.Add(temp);
if (filter_check(temp))
{
if (this.dataGridView1.InvokeRequired)
{
this.dataGridView1.BeginInvoke(new setDataGridViewDelegate(setDataGridView), new object[] { temp, this.packets.Count - 1 });
}
else
{
int index = this.dataGridView1.Rows.Add();
this.dataGridView1.Rows[index].DefaultCellStyle.BackColor = Color.FromName(temp.color);
this.dataGridView1.Rows[index].Cells[0].Value = temp.time;
this.dataGridView1.Rows[index].Cells[1].Value = temp.srcIp;
this.dataGridView1.Rows[index].Cells[2].Value = temp.destIp;
this.dataGridView1.Rows[index].Cells[3].Value = temp.protocol;
this.dataGridView1.Rows[index].Cells[4].Value = temp.info;
this.dataGridView1.Rows[index].Cells[5].Value = packets.Count - 1;
this.dataGridView1.FirstDisplayedScrollingRowIndex = this.dataGridView1.Rows.Count - 1;
}
}
}
catch (Exception)
{
;
}
}
this.is_saved = true;
captureFileReader.Close();
MessageBox.Show("读取完毕");
}
}
}
private static Packet GetNextPacket()
{
if (_currentFapi != null)
{
Log.DebugFormat("currentFAPI.PacketIndexes.Count {0}," +
"currentPacketIndex {1}",
_currentFapi.PacketIndexes.Count,
_currentPacketIndex);
}
else
{
Log.Debug("currentFAPI is null");
}
// do we need to open a file up or are we done with the current file?
if ((_packetFileName == null) ||
(_currentFapi == null) ||
(_currentFapi.PacketIndexes.Count == _currentPacketIndex))
{
Log.Debug("opening a new file up");
// close the open device if there was one
if (_captureFileReader != null)
{
_captureFileReader.Close();
_captureFileReader = null;
}
// do we have any more files to process?
if (_fileAndPacketIndex >= FilePacketIndexes.Count)
{
Log.DebugFormat("totalPacketsReturned {0}, expectedTotalPackets {1}",
_totalPacketsReturned,
ExpectedTotalPackets);
Assert.AreEqual(ExpectedTotalPackets,
_totalPacketsReturned,
"expectedTotalPackets does not match totalPacketsReturned");
return(null);
}
_currentFapi = FilePacketIndexes[_fileAndPacketIndex];
_currentPacketIndex = 0;
_packetFileName = _currentFapi.Filename;
// opening a new file, we are at the first index into the new file
_indexIntoPacketFile = 0;
try
{
Log.DebugFormat("Opening {0}", _currentFapi.Filename);
_captureFileReader = new SharpPcap.LibPcap.CaptureFileReaderDevice(_currentFapi.Filename);
_captureFileReader.Open();
_fileAndPacketIndex++;
}
catch (Exception e)
{
Log.Error("caught exception", e);
throw;
}
}
Packet p;
do
{
Log.DebugFormat("currentPacketIndex {0}", _currentPacketIndex);
Log.DebugFormat("indexIntoPacketFile {0}, currentFAPI.PacketIndexes[currentPacketIndex] {1}",
_indexIntoPacketFile,
_currentFapi.PacketIndexes[_currentPacketIndex]);
Log.Debug("retrieving packet");
// read the next packet
var packet = _captureFileReader.GetNextPacket();
Assert.IsNotNull(packet, "Expected a valid packet but it was null");
p = Packet.ParsePacket(packet.LinkLayerType, packet.Data);
_currentPacketDescription = _currentFapi.PacketDescription[_currentPacketIndex];
// advance our index into the current packet file
_indexIntoPacketFile++;
}while ((_indexIntoPacketFile - 1) != _currentFapi.PacketIndexes[_currentPacketIndex]);
// does the current index match the index of the packet we want?
// and because we got a packet we advance our index into the FileAndPacketIndex class
_currentPacketIndex++;
Log.Debug("returning packet");
_totalPacketsReturned++;
return(p);
}
private void ui_populate_packet_view()
{
// There's a race condition here, but imo not worth changing the architecture to fix yet.
if (cFileUtilities.get_size(_backend_file) == _backend_size)
{
return;
}
_backend_size = cFileUtilities.get_size(_backend_file);
ICaptureDevice pcap_device = null;
bool has_temp_file_open = false;
string temp_file = "";
_packet_bytes.Clear();
try
{
temp_file = cFileUtilities.get_temp_copy(_backend_file);
has_temp_file_open = true;
pcap_device = new SharpPcap.LibPcap.CaptureFileReaderDevice(temp_file);
pcap_device.Open();
RawCapture capture;
int current_packet = 0;
while ((capture = pcap_device.GetNextPacket()) != null)
{
var eth_packet = PacketDotNet.Packet.ParsePacket(capture.LinkLayerType, capture.Data);
PacketDotNet.IPPacket ip_packet = eth_packet.Extract <PacketDotNet.IPPacket>();
if (_stream_type == "tcp")
{
PacketDotNet.TcpPacket tcp_packet = eth_packet.Extract <PacketDotNet.TcpPacket>();
_packet_bytes.Add(tcp_packet.PayloadData.ToList());
object packet_view_item = new
{
PacketNumber = current_packet.ToString(),
Source = ip_packet.SourceAddress.ToString() + ":" + tcp_packet.SourcePort.ToString(),
Destination = ip_packet.DestinationAddress.ToString() + ":" + tcp_packet.DestinationPort.ToString(),
PayloadLength = tcp_packet.PayloadData.Length.ToString(),
};
if (packet_stream_view.Items.Contains(packet_view_item) == false)
{
packet_stream_view.Items.Add(packet_view_item);
}
}
else
{
PacketDotNet.UdpPacket udp_packet = eth_packet.Extract <PacketDotNet.UdpPacket>();
_packet_bytes.Add(udp_packet.PayloadData.ToList());
object packet_view_item = new
{
PacketNumber = current_packet.ToString(),
Source = ip_packet.SourceAddress.ToString() + ":" + udp_packet.SourcePort.ToString(),
Destination = ip_packet.DestinationAddress.ToString() + ":" + udp_packet.DestinationPort.ToString(),
PayloadLength = udp_packet.PayloadData.Length.ToString(),
};
if (packet_stream_view.Items.Contains(packet_view_item) == false)
{
packet_stream_view.Items.Add(packet_view_item);
}
}
current_packet++;
}
}
catch (Exception e)
{
if (has_temp_file_open == true)
{
cFileUtilities.remove_temp_copy(temp_file);
has_temp_file_open = false;
}
MessageBox.Show("Error: " + e.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
if (pcap_device != null)
{
pcap_device.Close();
}
if (has_temp_file_open == true)
{
cFileUtilities.remove_temp_copy(temp_file);
has_temp_file_open = false;
}
}