/// <summary>
/// Encrypts the specified scope.
/// </summary>
/// <param name="data">The scope data.</param>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
public ISnmpData Encrypt(ISnmpData data, SecurityParameters parameters)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
var pkey = AuthenticationProvider.PasswordToKey(_phrase.GetRaw(), parameters.EngineId.GetRaw());
var bytes = data.ToBytes();
var reminder = bytes.Length % 8;
var count = reminder == 0 ? 0 : 8 - reminder;
using (var stream = new MemoryStream())
{
stream.Write(bytes, 0, bytes.Length);
for (var i = 0; i < count; i++)
{
stream.WriteByte(1);
}
bytes = stream.ToArray();
}
var encrypted = Encrypt(bytes, pkey, parameters.EngineBoots.ToInt32(), parameters.EngineTime.ToInt32(), parameters.PrivacyParameters.GetRaw());
return(new OctetString(encrypted));
}
public void TestEncrypt2()
{
byte[] expected = ByteTool.Convert("04 30 4B 4F 10 3B 73 E1 E4 BD 91 32 1B CB 41" +
"1B A1 C1 D1 1D 2D B7 84 16 CA 41 BF B3 62 83 C4" +
"29 C5 A4 BC 32 DA 2E C7 65 A5 3D 71 06 3C 5B 56" +
"FB 04 A4");
OctetString engineId = new OctetString(ByteTool.Convert("80 00 1F 88 80 E9 63 00 00 D6 1F F4 49"));
IPrivacyProvider priv;
if (DESPrivacyProvider.IsSupported)
{
priv = new DESPrivacyProvider(new OctetString("passtest"), new MD5AuthenticationProvider(new OctetString("testpass")));
}
else
{
return;
}
Scope scope = new Scope(engineId, OctetString.Empty, new GetRequestPdu(0x3A25, new List <Variable> {
new Variable(new ObjectIdentifier("1.3.6.1.2.1.1.3.0"))
}));
SecurityParameters parameters = new SecurityParameters(engineId, new Integer32(0x14), new Integer32(0x35), new OctetString("lexmark"), new OctetString(new byte[12]), new OctetString(ByteTool.Convert("00 00 00 01 44 2C A3 B5")));
ISnmpData data = priv.Encrypt(scope.GetData(VersionCode.V3), parameters);
Assert.Equal(SnmpType.OctetString, data.TypeCode);
Assert.Equal(ByteTool.Convert(expected), ByteTool.Convert(data.ToBytes()));
}
public void TestEncrypt2()
{
byte[] expected =
ByteTool.Convert(
"04 30 9D 13 04 9C 7E D9 84 8B 33 C3 26 5C 1F 91 30 27 D3 56 B0 FD 81 36 50 3A EF 80 1C B9 25 D6 38 84 A7 07 45 FE E8 D7 01 83 A1 CE 04 79 9D 5F 9E 2F");
OctetString engineId = new OctetString(ByteTool.Convert("80 00 1F 88 80 E9 63 00 00 D6 1F F4 49"));
var priv = new TripleDESPrivacyProvider(new OctetString("passtest"),
new MD5AuthenticationProvider(new OctetString("testpass")));
Scope scope = new Scope(engineId, OctetString.Empty,
new GetRequestPdu(0x3A25,
new List <Variable> {
new Variable(new ObjectIdentifier("1.3.6.1.2.1.1.3.0"))
}));
SecurityParameters parameters = new SecurityParameters(engineId, new Integer32(0x14), new Integer32(0x35),
new OctetString("lexmark"), new OctetString(new byte[12]),
new OctetString(ByteTool.Convert("00 00 00 01 44 2C A3 B5")));
var original = scope.GetData(VersionCode.V3);
ISnmpData data = priv.Encrypt(original, parameters);
Assert.Equal(SnmpType.OctetString, data.TypeCode);
//Assert.Equal(ByteTool.Convert(expected), ByteTool.Convert(data.ToBytes()));
ISnmpData decrypted = priv.Decrypt(data, parameters);
Assert.Equal(ByteTool.Convert(original.ToBytes()), ByteTool.Convert(decrypted.ToBytes()));
}
/// <summary>
/// Encrypts the specified scope.
/// </summary>
/// <param name="data">The scope data.</param>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
public ISnmpData Encrypt(ISnmpData data, SecurityParameters parameters)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (data.TypeCode != SnmpType.Sequence && !(data is ISnmpPdu))
{
throw new ArgumentException("Invalid data type.", nameof(data));
}
var key = PasswordToKey(_phrase.GetRaw(), parameters.EngineId.GetRaw());
var bytes = data.ToBytes();
var reminder = bytes.Length % 8;
var count = reminder == 0 ? 0 : 8 - reminder;
using (var stream = new MemoryStream())
{
stream.Write(bytes, 0, bytes.Length);
for (var i = 0; i < count; i++)
{
stream.WriteByte(1);
}
bytes = stream.ToArray();
}
var encrypted = Encrypt(bytes, key, parameters.EngineBoots.ToInt32(), parameters.EngineTime.ToInt32(),
parameters.PrivacyParameters.GetRaw());
return(new OctetString(encrypted));
}
/// <summary>
/// Encrypts the specified scope.
/// </summary>
/// <param name="data">The scope data.</param>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
public ISnmpData Encrypt(ISnmpData data, SecurityParameters parameters)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (data.TypeCode != SnmpType.Sequence && !(data is ISnmpPdu))
{
throw new ArgumentException("unencrypted data is expected.", "data");
}
byte[] pkey = AuthenticationProvider.PasswordToKey(_phrase.GetRaw(), parameters.EngineId.GetRaw());
byte[] bytes = data.ToBytes();
int reminder = bytes.Length % 8;
int count = reminder == 0 ? 0 : 8 - reminder;
using (MemoryStream stream = new MemoryStream())
{
stream.Write(bytes, 0, bytes.Length);
for (int i = 0; i < count; i++)
{
stream.WriteByte(1);
}
bytes = stream.ToArray();
}
byte[] encrypted = Encrypt(bytes, pkey, parameters.PrivacyParameters.GetRaw());
return(new OctetString(encrypted));
}
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);
}
/// <summary>
/// Encrypts the specified scope.
/// </summary>
/// <param name="data">The scope data.</param>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
public ISnmpData Encrypt(ISnmpData data, SecurityParameters parameters)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (data.TypeCode != SnmpType.Sequence && !(data is ISnmpPdu))
{
throw new ArgumentException("unencrypted data is expected.", "data");
}
var pkey = AuthenticationProvider.PasswordToKey(_phrase.GetRaw(), parameters.EngineId.GetRaw());
var bytes = data.ToBytes();
var reminder = bytes.Length % 8;
var count = reminder == 0 ? 0 : 8 - reminder;
using (var stream = new MemoryStream())
{
stream.Write(bytes, 0, bytes.Length);
for (var i = 0; i < count; i++)
{
stream.WriteByte(1);
}
bytes = stream.ToArray();
}
var encrypted = Encrypt(bytes, pkey, parameters.PrivacyParameters.GetRaw());
return new OctetString(encrypted);
}
