public static void Main(string[] args)
{
// Load API
try
{
initialized = Program.InitializeNMAPI();
}
catch (BadImageFormatException)
{
Console.WriteLine("There was an error loading the NMAPI.\n\nPlease ensure you have the correct version installed for your platform.");
}
catch (DllNotFoundException)
{
Console.WriteLine("There was an error loading the NMAPI DLL.\n\nPlease ensure you have Network Monitor 3.3 installed or try rebooting.");
}
CommandLineArguments commandReader = new CommandLineArguments();
if (commandReader.ParseCommandLineArguments(args))
{
if (commandReader.IsNoArguments)
{
Console.WriteLine(CommandLineArguments.GetUsage("ExpertExample"));
}
else if (commandReader.IsRequestingHelp)
{
Console.WriteLine(CommandLineArguments.GetUsage("ExpertExample"));
}
else if (initialized)
{
Console.WriteLine("Running Test Application with Arguments:");
Console.WriteLine("\tCapture File: " + commandReader.CaptureFileName);
Console.WriteLine("\tDisplay Filter: " + commandReader.DisplayFilter);
Console.WriteLine("\tConversation Filter: " + commandReader.ConversationFilter);
Console.WriteLine("\tSelected Frames: " + commandReader.SelectedFramesString);
Console.WriteLine();
bool loadedparserengine = false;
// Configure Parser Engine
uint errno;
IntPtr hNplParser = IntPtr.Zero;
IntPtr hFrameParserConfig = IntPtr.Zero;
uint conversationFilterId = 0;
uint displayFilterId = 0;
IntPtr hFrameParser = IntPtr.Zero;
// Only load the parsing engine if we have to
if (!string.IsNullOrEmpty(commandReader.ConversationFilter) || !string.IsNullOrEmpty(commandReader.DisplayFilter))
{
Console.WriteLine("Loading Parser Engine...");
// Passing in null for the path will use the default configuration as specified in the Netmon UI
errno = NetmonAPI.NmLoadNplParser(null, NmNplParserLoadingOption.NmAppendRegisteredNplSets, pErrorCallBack, IntPtr.Zero, out hNplParser);
if (errno == ERROR_SUCCESS)
{
// Configure Frame Parser
errno = NetmonAPI.NmCreateFrameParserConfiguration(hNplParser, pErrorCallBack, IntPtr.Zero, out hFrameParserConfig);
if (errno == ERROR_SUCCESS)
{
// Enable Conversations
errno = NetmonAPI.NmConfigConversation(hFrameParserConfig, NmConversationConfigOption.None, true);
if (errno == ERROR_SUCCESS)
{
// Add Filters
if (!string.IsNullOrEmpty(commandReader.ConversationFilter))
{
Console.WriteLine("Adding Conversation Filter...");
errno = NetmonAPI.NmAddFilter(hFrameParserConfig, commandReader.ConversationFilter, out conversationFilterId);
}
if (errno == ERROR_SUCCESS)
{
if (!string.IsNullOrEmpty(commandReader.DisplayFilter))
{
Console.WriteLine("Adding Display Filter...");
errno = NetmonAPI.NmAddFilter(hFrameParserConfig, commandReader.DisplayFilter, out displayFilterId);
}
if (errno == ERROR_SUCCESS)
{
errno = NetmonAPI.NmCreateFrameParser(hFrameParserConfig, out hFrameParser, NmFrameParserOptimizeOption.ParserOptimizeNone);
if (errno == ERROR_SUCCESS)
{
Console.WriteLine("Parser Engine Loaded Successfully!");
Console.WriteLine();
loadedparserengine = true;
}
else
{
Console.WriteLine("Parser Creation Error Number = " + errno);
}
}
else
{
Console.WriteLine("Display Filter Creation Error Number = " + errno);
}
}
else
{
Console.WriteLine("Conversation Filter Creation Error Number = " + errno);
}
}
else
{
Console.WriteLine("Conversation Error Number = " + errno);
}
if (!loadedparserengine)
{
NetmonAPI.NmCloseHandle(hFrameParserConfig);
}
}
else
{
Console.WriteLine("Parser Configuration Error Number = " + errno);
}
if (!loadedparserengine)
{
NetmonAPI.NmCloseHandle(hNplParser);
}
}
else
{
Console.WriteLine("Error Loading NMAPI Parsing Engine Error Number = " + errno);
}
}
// Wait for confirmation
Console.WriteLine("Press any key to continue");
Console.ReadKey(true);
// Let's open the capture file
// Open Capture File
IntPtr captureFile = IntPtr.Zero;
errno = NetmonAPI.NmOpenCaptureFile(commandReader.CaptureFileName, out captureFile);
if (errno == ERROR_SUCCESS)
{
// Retrieve the number of frames in this capture file
uint frameCount;
errno = NetmonAPI.NmGetFrameCount(captureFile, out frameCount);
if (errno == ERROR_SUCCESS)
{
// Loop through capture file
for (uint ulFrameNumber = 0; ulFrameNumber < frameCount; ulFrameNumber++)
{
// Get the Raw Frame data
IntPtr hRawFrame = IntPtr.Zero;
errno = NetmonAPI.NmGetFrame(captureFile, ulFrameNumber, out hRawFrame);
if (errno != ERROR_SUCCESS)
{
Console.WriteLine("Error Retrieving Frame #" + (ulFrameNumber + 1) + " from file");
continue;
}
// Need to parse once to get similar results to the UI
if (loadedparserengine)
{
// Parse Frame
IntPtr phParsedFrame;
IntPtr phInsertedRawFrame;
errno = NetmonAPI.NmParseFrame(hFrameParser, hRawFrame, ulFrameNumber, NmFrameParsingOption.FieldDisplayStringRequired | NmFrameParsingOption.FieldFullNameRequired | NmFrameParsingOption.DataTypeNameRequired, out phParsedFrame, out phInsertedRawFrame);
if (errno == ERROR_SUCCESS)
{
// Check against Filters
if (!string.IsNullOrEmpty(commandReader.ConversationFilter))
{
bool passed;
errno = NetmonAPI.NmEvaluateFilter(phParsedFrame, conversationFilterId, out passed);
if (errno == ERROR_SUCCESS)
{
if (passed)
{
if (!string.IsNullOrEmpty(commandReader.DisplayFilter))
{
bool passed2;
errno = NetmonAPI.NmEvaluateFilter(phParsedFrame, displayFilterId, out passed2);
if (errno == ERROR_SUCCESS)
{
if (passed2)
{
PrintParsedFrameInformation(phParsedFrame, ulFrameNumber, commandReader);
}
}
}
else
{
PrintParsedFrameInformation(phParsedFrame, ulFrameNumber, commandReader);
}
}
}
}
else if (!string.IsNullOrEmpty(commandReader.DisplayFilter))
{
bool passed;
errno = NetmonAPI.NmEvaluateFilter(phParsedFrame, displayFilterId, out passed);
if (errno == ERROR_SUCCESS)
{
if (passed)
{
PrintParsedFrameInformation(phParsedFrame, ulFrameNumber, commandReader);
}
}
}
else
{
PrintParsedFrameInformation(phParsedFrame, ulFrameNumber, commandReader);
}
NetmonAPI.NmCloseHandle(phInsertedRawFrame);
NetmonAPI.NmCloseHandle(phParsedFrame);
}
else
{
Console.WriteLine("Error Parsing Frame #" + (ulFrameNumber + 1) + " from file");
}
}
else
{
// Just print what I just deleted...
uint pulLength;
errno = NetmonAPI.NmGetRawFrameLength(hRawFrame, out pulLength);
if (errno == ERROR_SUCCESS)
{
if (commandReader.IsSelected(ulFrameNumber))
{
Console.WriteLine("Frame #" + (ulFrameNumber + 1) + " (Selected) Frame Length(bytes): " + pulLength);
}
else
{
Console.WriteLine("Frame #" + (ulFrameNumber + 1) + " Frame Length(bytes): " + pulLength);
}
}
else
{
Console.WriteLine("Error Getting Frame Length for Frame #" + (ulFrameNumber + 1));
}
}
NetmonAPI.NmCloseHandle(hRawFrame);
}
}
else
{
Console.WriteLine("Error Retrieving Capture File Length");
}
// Close Capture File to Cleanup
NetmonAPI.NmCloseHandle(captureFile);
}
else
{
Console.WriteLine("Could not open capture file: " + commandReader.CaptureFileName);
Console.WriteLine(CommandLineArguments.GetUsage("ExpertExample"));
}
if (loadedparserengine)
{
NetmonAPI.NmCloseHandle(hFrameParser);
NetmonAPI.NmCloseHandle(hFrameParserConfig);
NetmonAPI.NmCloseHandle(hNplParser);
}
}
}
else
{
Console.WriteLine(commandReader.LastErrorMessage);
Console.WriteLine(CommandLineArguments.GetUsage("ExpertExample"));
}
// Pause so we can see the results when launched from Network Monitor
Console.WriteLine();
Console.WriteLine("Press any key to continue");
Console.ReadKey();
if (initialized)
{
CloseNMAPI();
}
}
/// <summary>
/// Callback function for capture.
/// </summary>
/// <param name="hCapEngine"></param>
/// <param name="adapterIndex"></param>
/// <param name="callerContext"></param>
/// <param name="hRawFrame"></param>
private void CaptureCallBack(IntPtr hCapEngine, uint adapterIndex, IntPtr callerContext, IntPtr hRawFrame)
{
if (callerContext != IntPtr.Zero)
{
uint errno;
unsafe
{
uint frameLen = 0;
errno = NetmonAPI.NmGetRawFrameLength(hRawFrame, out frameLen);
if (errno != 0)
{
return;
}
byte[] frameBuf = new byte[CapturedFrameSize];
fixed(byte *pBuf = frameBuf)
{
if (frameLen >= CapturedFrameSize)
{
NM_TIME pTime = new NM_TIME();
//Get the TimeStamp of the frame for building the new shortened frame
errno = NetmonAPI.NmGetFrameTimeStampEx(hRawFrame, ref pTime);
if (errno != 0)
{
return;
}
uint captureSize = 0;
//use NmGetPartiaRawlFrame() to get the wanted length of the raw frame,
errno = NetmonAPI.NmGetPartialRawFrame(
hRawFrame,
0, //offset
CapturedFrameSize,
pBuf,
out captureSize
);
if (errno != 0)
{
return;
}
IntPtr hPartialRawFrame;
errno = NetmonAPI.NmBuildRawFrameFromBufferEx(
(IntPtr)pBuf,
CapturedFrameSize,
0, //media type, optional
ref pTime,
out hPartialRawFrame
);
if (errno != 0)
{
return;
}
NetmonAPI.NmAddFrame(callerContext, hPartialRawFrame);
}
else
{
NetmonAPI.NmAddFrame(callerContext, hRawFrame);
}
}
}
}
}
