static void ARPScan(ScanOptions options)
{
Dictionary <IPAddress, List <ArpEntry> > results = new Dictionary <IPAddress, List <ArpEntry> >();
IEnumerable <string> targets;
if (options.FromFile)
{
List <string> targetList = new List <string>();
foreach (string filename in options.StringSeq)
{
using (System.IO.TextReader r = System.IO.File.OpenText(filename))
{
string s = String.Empty;
while ((s = r.ReadLine()) != null)
{
string[] separators = options.separator == "" ?
new string[] { System.Globalization.CultureInfo.CurrentUICulture.TextInfo.ListSeparator } :
new string[] { options.separator };
string[] lineElts = s.Split(separators, StringSplitOptions.RemoveEmptyEntries);
if (lineElts.Length == 1) //IP only
{
targetList.Add(lineElts[0]);
}
else if (lineElts.Length == 2) //Target name,IP
{
targetList.Add(lineElts[1]);
}
}
}
}
targets = targetList;
}
else
{
targets = options.StringSeq;
}
foreach (string target in targets)
{
Dictionary <IPAddress, List <ArpEntry> > scanresult = ScanTarget(target, options);
results = results.Union(scanresult).ToDictionary(k => k.Key, v => v.Value);
}
if (options.OutputFileName != "")
{
OutputToCSV(results, options);
}
else
{
foreach (IPAddress ipaddr in results.Keys)
{
foreach (ArpEntry entry in results[ipaddr])
{
Console.WriteLine("On {0}, IP {1} : MAC {2}", ipaddr, entry.ipEntry.AddressList[0], entry.physAddress);
}
}
Console.ReadLine();
}
}
static void ARPScan(ScanOptions options)
{
Dictionary<IPAddress, List<ArpEntry>> results = new Dictionary<IPAddress, List<ArpEntry>>();
IEnumerable<string> targets;
if (options.FromFile)
{
List<string> targetList = new List<string>();
foreach (string filename in options.StringSeq)
{
using (System.IO.TextReader r = System.IO.File.OpenText(filename))
{
string s = String.Empty;
while ((s = r.ReadLine()) != null)
{
string[] separators = options.separator == "" ?
new string[] { System.Globalization.CultureInfo.CurrentUICulture.TextInfo.ListSeparator } :
new string[] { options.separator };
string[] lineElts = s.Split(separators, StringSplitOptions.RemoveEmptyEntries);
if(lineElts.Length == 1) //IP only
{
targetList.Add(lineElts[0]);
}
else if (lineElts.Length == 2) //Target name,IP
{
targetList.Add(lineElts[1]);
}
}
}
}
targets = targetList;
}
else
{
targets = options.StringSeq;
}
foreach (string target in targets)
{
Dictionary<IPAddress, List<ArpEntry>> scanresult = ScanTarget(target, options);
results = results.Union(scanresult).ToDictionary(k => k.Key, v => v.Value);
}
if (options.OutputFileName != "")
{
OutputToCSV(results, options);
}
else
{
foreach (IPAddress ipaddr in results.Keys)
{
foreach (ArpEntry entry in results[ipaddr])
Console.WriteLine("On {0}, IP {1} : MAC {2}", ipaddr, entry.ipEntry.AddressList[0], entry.physAddress);
}
Console.ReadLine();
}
}
private static void OutputToCSV(Dictionary <IPAddress, List <ArpEntry> > results, ScanOptions options)
{
string dir = Path.GetDirectoryName(options.OutputFileName);
if (dir != "" && !Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
string separator = string.IsNullOrEmpty(options.separator) ?
System.Globalization.CultureInfo.CurrentUICulture.TextInfo.ListSeparator :
options.separator;
using (var sw = new StreamWriter(options.OutputFileName))
{
foreach (IPAddress ipaddr in results.Keys)
{
foreach (ArpEntry entry in results[ipaddr])
{
sw.WriteLine(String.Join(separator, new object[] { ipaddr, entry.ipEntry.AddressList[0], entry.physAddress }));
}
}
}
}
static List <ArpEntry> ScanTarget(IPAddress ip, ScanOptions options)
{
List <ArpEntry> results = new List <ArpEntry>();
OctetString community = new OctetString(options.Community);
List <Variable> ARPTypeResult = new List <Variable>();
List <Variable> ARPIPResult = new List <Variable>();
List <Variable> ARPPhysAddrResult = new List <Variable>();
try
{
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.4"),
ARPTypeResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.2"),
ARPPhysAddrResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.3"),
ARPIPResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException te)
{
Console.WriteLine("Request to {0} timed out, skipping... : {1}", ip, te);
return(results);
}
foreach (Variable v in ARPTypeResult)
{
if (v.Data.Equals(new Integer32(4)) && options.ProcessStaticARPEntries == false)
{
continue;
}
else if (v.Data.Equals(new Integer32(3)) && options.ProcessDynamicARPEntries == false)
{
continue;
}
else if (v.Data.Equals(new Integer32(2)) && options.ProcessInvalidARPEntries == false)
{
continue;
}
else if (v.Data.Equals(new Integer32(1)) && options.ProcessOtherARPEntries == false)
{
continue;
}
uint[] numID = v.Id.ToNumerical().ToArray();
numID[9] = 3;
ObjectIdentifier IPID = new ObjectIdentifier(numID);
ISnmpData IPData = ARPIPResult.Where(i => i.Id == IPID).Select(x => x).Single().Data;
numID[9] = 2;
ObjectIdentifier PhysAddrID = new ObjectIdentifier(numID);
ISnmpData PhysAddrData = ARPPhysAddrResult.Where(i => i.Id == PhysAddrID).Select(x => x).Single().Data;
System.Net.NetworkInformation.PhysicalAddress mac = new System.Net.NetworkInformation.PhysicalAddress(PhysAddrData.ToBytes().Skip(2).ToArray());
ArpEntry entry = new ArpEntry(IPAddress.Parse(IPData.ToString()), mac);
results.Add(entry);
}
return(results);
}
private static Dictionary <IPAddress, List <ArpEntry> > ScanTarget(string strIP, ScanOptions options)
{
IPAddress ip;
Dictionary <IPAddress, List <ArpEntry> > results = new Dictionary <IPAddress, List <ArpEntry> >();
try
{
IPAddress[] ips = Dns.GetHostAddresses(strIP);
ip = ips[0];
}
catch (Exception e)
{
Console.WriteLine("Skipping invalid target {0}: {1}", strIP, e.Message);
return(results);
}
results.Add(ip, ScanTarget(ip, options));
return(results);
}
private static void OutputToCSV(Dictionary<IPAddress, List<ArpEntry>> results, ScanOptions options)
{
string dir = Path.GetDirectoryName(options.OutputFileName);
if (dir != "" && !Directory.Exists(dir))
Directory.CreateDirectory(dir);
string separator = string.IsNullOrEmpty(options.separator) ?
System.Globalization.CultureInfo.CurrentUICulture.TextInfo.ListSeparator :
options.separator ;
using (var sw = new StreamWriter(options.OutputFileName))
{
foreach (IPAddress ipaddr in results.Keys)
{
foreach (ArpEntry entry in results[ipaddr])
{
sw.WriteLine(String.Join(separator, new object[] { ipaddr, entry.ipEntry.AddressList[0], entry.physAddress }));
}
}
}
}
static List<ArpEntry> ScanTarget(IPAddress ip, ScanOptions options)
{
List<ArpEntry> results = new List<ArpEntry>();
OctetString community = new OctetString(options.Community);
List<Variable> ARPTypeResult = new List<Variable>();
List<Variable> ARPIPResult = new List<Variable>();
List<Variable> ARPPhysAddrResult = new List<Variable>();
try
{
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.4"),
ARPTypeResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.2"),
ARPPhysAddrResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
Messenger.BulkWalk(VersionCode.V2,
new IPEndPoint(ip, 161),
new OctetString(options.Community),
new ObjectIdentifier("1.3.6.1.2.1.4.22.1.3"),
ARPIPResult,
options.SNMPTimeout,
10,
WalkMode.WithinSubtree,
null,
null);
}
catch(Lextm.SharpSnmpLib.Messaging.TimeoutException te)
{
Console.WriteLine("Request to {0} timed out, skipping... : {1}", ip, te);
return results;
}
foreach (Variable v in ARPTypeResult)
{
if (v.Data.Equals(new Integer32(4)) && options.ProcessStaticARPEntries == false)
continue;
else if (v.Data.Equals(new Integer32(3)) && options.ProcessDynamicARPEntries == false)
continue;
else if (v.Data.Equals(new Integer32(2)) && options.ProcessInvalidARPEntries == false)
continue;
else if (v.Data.Equals(new Integer32(1)) && options.ProcessOtherARPEntries == false)
continue;
uint[] numID = v.Id.ToNumerical().ToArray();
numID[9] = 3;
ObjectIdentifier IPID = new ObjectIdentifier(numID);
ISnmpData IPData = ARPIPResult.Where(i => i.Id == IPID).Select(x => x).Single().Data;
numID[9] = 2;
ObjectIdentifier PhysAddrID = new ObjectIdentifier(numID);
ISnmpData PhysAddrData = ARPPhysAddrResult.Where(i => i.Id == PhysAddrID).Select(x => x).Single().Data;
System.Net.NetworkInformation.PhysicalAddress mac = new System.Net.NetworkInformation.PhysicalAddress(PhysAddrData.ToBytes().Skip(2).ToArray());
ArpEntry entry = new ArpEntry(IPAddress.Parse(IPData.ToString()), mac);
results.Add(entry);
}
return results;
}
private static Dictionary<IPAddress, List<ArpEntry>> ScanTarget(string strIP, ScanOptions options)
{
IPAddress ip;
Dictionary<IPAddress, List<ArpEntry>> results = new Dictionary<IPAddress, List<ArpEntry>>();
try
{
IPAddress[] ips = Dns.GetHostAddresses(strIP);
ip = ips[0];
}
catch (Exception e)
{
Console.WriteLine("Skipping invalid target {0}: {1}", strIP, e.Message);
return results;
}
results.Add(ip, ScanTarget(ip, options));
return results;
}
