protected bool Equals(Oid other)
{
return string.Equals(_oid, other._oid)
&& string.Equals(_name, other._name)
&& string.Equals(_fullName, other._fullName)
&& Equals(_childOids, other._childOids)
&& string.Equals(_description, other._description);
}
public IEnumerable<SnmpResult> Walk(SnmpVersion version, string octetString, Oid oid, WalkingMode walkMode, IPAddress ipAddress = null, string hostname = null, string userLoginV3 = null, string passwordV3 = null)
{
if (ipAddress != null)
{
return WalkOperation(version, ipAddress, octetString, oid, walkMode);
}
else if (!string.IsNullOrEmpty(hostname))
{
return WalkOperation(version, GetIpAddressFromHostName(hostname), octetString, oid, walkMode);
}
return null;
}
public IEnumerable<SnmpResult> GetBulk(SnmpVersion version, int maxBulkRepetiotions, string octetString, Oid oid, IPAddress ipAddress = null, string hostname = null, string userLoginV3 = null, string passwordV3 = null)
{
if (ipAddress != null)
{
return GetBulkOperation(version, ipAddress, maxBulkRepetiotions, octetString, oid);
}
else if (!string.IsNullOrEmpty(hostname))
{
return GetBulkOperation(version, GetIpAddressFromHostName(hostname), maxBulkRepetiotions, octetString, oid);
}
return null;
}
private static void Initialize()
{
var confPath = Path.Combine(CurrentDir, ConfDir);
var codesPath = Path.Combine(CurrentDir, ConfDir, CodesDir);
if (!Directory.Exists(confPath) && !Directory.Exists(codesPath)) return;
var dirInfo = new DirectoryInfo(confPath);
_commoInfos = dirInfo.GetFiles("*.xml").Where(file => file.Name.Contains(OidFileIdentifier)).ToList();
var codesDirInfo = new DirectoryInfo(codesPath);
_codesInfo = codesDirInfo.GetFiles("*.xml").Where(file => file.Name.Contains(CodesFileIdentifier)).ToList();
if (!_commoInfos.Any() || !_commoInfos.All(file => file.Name.Contains(ConfMain))) return;
foreach (var file in _commoInfos)
{
var xml = XDocument.Load(file.OpenRead());
if (xml.Root == null) continue;
var rootNode = xml.Root;
if (!ValidateOidFile(rootNode)) continue;
var subNode = (XElement)rootNode.FirstNode;
if (string.IsNullOrEmpty(subNode.FirstAttribute.Name.LocalName) || subNode.FirstAttribute.Name.LocalName != OidAttr) continue;
var rootOid = new Oid(subNode.FirstAttribute.Value, subNode.Name.LocalName, subNode.Name.LocalName);
var oids = subNode.Elements();
var childOids = oids.Select(oid => new Oid(oid.FirstAttribute.Value, oid.Name.LocalName, string.Concat(rootOid.Name, ".", oid.Name.LocalName))).ToList();
rootOid.ChildOids = InitializeCodes(childOids);
ConfOids.Add(rootOid);
}
var brandNameInfos = dirInfo.GetFiles("*.xml").Where(file => file.Name.Contains(DeviceModelFileName)).ToList();
var bnInfo = DeserializeCodes(brandNameInfos.First());
foreach (var code in bnInfo.Code)
{
BrandHashtable.Add(code.Decimal, code.Name);
}
}
private IEnumerable<SnmpResult> WalkOperation(SnmpVersion version, IPAddress ipAddress, string octetString, Oid oid, WalkingMode walkMode)
{
_log.Info("SnmpEngine.WalkOperation(): Started");
List<SnmpResult> result;
try
{
if (_timeOut == 0)
{
_timeOut = SnmpHelper.DefaultTimeOut;
}
if (string.IsNullOrEmpty(octetString))
{
octetString = SnmpHelper.DefaultOctetString;
}
result = oid.HasChildOids ? Walk(version, ipAddress, octetString, oid, walkMode).ToList() : WalkSingle(version, ipAddress, octetString, oid, walkMode).ToList();
}
catch (Exception e)
{
if (e is TimeoutException)
{
_log.Error("SnmpEngine.WalkOperation():Timeout Exception caught:", e);
throw new SnmpTimeOutException(e.Message, _timeOut);
}
else if (e is ArgumentOutOfRangeException)
{
_log.Error("SnmpEngine.WalkOperation():Argument Out Of Range Exception caught:", e);
throw new SnmpEngineConvertorException((ArgumentOutOfRangeException)e);
}
else
{
_log.Error("SnmpEngine.WalkOperation():Exception caught:", e);
throw new SnmpEngineException(e.Message);
}
}
finally
{
_log.Info("SnmpEngine.WalkOperation(): Finished");
}
return result;
}
private IEnumerable<SnmpResult> GetOperation(SnmpVersion version, IPAddress ipAddress, string octetString, Oid oid)
{
_log.Info("SnmpEngine.GetOperation(): Started");
var variables = new List<Variable>
{
new Variable(new ObjectIdentifier(oid.Value))
};
try
{
if (_timeOut == 0)
{
_timeOut = SnmpHelper.DefaultTimeOut;
}
if (string.IsNullOrEmpty(octetString))
{
octetString = SnmpHelper.DefaultOctetString;
}
Messenger.Get(_converter.ToVersionCodeConverter(version), new IPEndPoint(ipAddress, SnmpHelper.SnmpServerPort), new OctetString(octetString), variables, _timeOut);
}
catch (Exception e)
{
if (e is TimeoutException)
{
_log.Error("SnmpEngine.GetOperation():Timeout Exception caught:", e);
throw new SnmpTimeOutException(e.Message, _timeOut);
}
else if (e is ArgumentOutOfRangeException)
{
_log.Error("SnmpEngine.GetOperation():Argument Out Of Range Exception caught:", e);
throw new SnmpEngineConvertorException((ArgumentOutOfRangeException)e);
}
else
{
_log.Error("SnmpEngine.GetOperation():Exception caught:", e);
throw new SnmpEngineException(e.Message);
}
}
finally
{
_log.Info("SnmpEngine.GetOperation(): Finished");
}
return variables.Select(var => new SnmpResult(new Oid(var.Id.ToString()), var.Data, _converter.ToSnmpDataType(var.Data.TypeCode)));
}
private IEnumerable<SnmpResult> GetNextOperation(SnmpVersion version, IPAddress ipAddress, string octetString, Oid oid)
{
_log.Info("SnmpEngine.GetNextOperation() : Started oid: " + oid.Value);
List<SnmpResult> results;
var variable = new List<Variable>
{
new Variable(new ObjectIdentifier(oid.Value))
};
try
{
var getNextRequest = new GetNextRequestMessage(0, _converter.ToVersionCodeConverter(version), new OctetString(octetString), variable);
var responce = getNextRequest.GetResponse(SnmpHelper.DefaultTimeOut, new IPEndPoint(ipAddress, SnmpHelper.SnmpServerPort));
if (responce.Pdu().ErrorStatus.ToInt32() != 0)
{
throw new SnmpEngineException("SnmpEngine.GetNextOperation() error status = 0; oid = " + oid.Value);
}
results = responce.Pdu().Variables.Select(var => new SnmpResult(new Oid(var.Id.ToString()), var.Data, _converter.ToSnmpDataType(var.Data.TypeCode))).ToList();
}
catch (Exception e)
{
if (e is TimeoutException)
{
_log.Error("SnmpEngine.GetOperation():Timeout Exception caught:", e);
throw new SnmpTimeOutException(e.Message, _timeOut);
}
else if (e is ArgumentOutOfRangeException)
{
_log.Error("SnmpEngine.GetOperation():Argument Out Of Range Exception caught:", e);
throw new SnmpEngineConvertorException((ArgumentOutOfRangeException)e);
}
else
{
_log.Error("SnmpEngine.GetOperation():Exception caught:", e);
throw new SnmpEngineException(e.Message);
}
}
finally
{
_log.Info("SnmpEngine.GetNextOperation(): Finished");
}
return results;
}
private List<SnmpResult> WalkWithAdditionalCodes(SnmpVersion version, IPAddress ipAddress, string octetString, Oid oid, WalkingMode walkMode)
{
_log.Info("SnmpEngine.WalkWithAdditionalCodes(): Started oid: " + oid.Value);
var list = new List<Variable>();
var results = new List<SnmpResult>();
var codesTable = XmlLoader.InitAdditionalCodes(oid);
var codes = (Codes)codesTable[oid.Name];
if (codes != null)
{
foreach (var code in codes.Code)
{
try
{
Messenger.Walk(_converter.ToVersionCodeConverter(version),
new IPEndPoint(ipAddress, SnmpHelper.SnmpServerPort), new OctetString(octetString),
new ObjectIdentifier(string.Concat(oid.Value, ".", code.Decimal)), list, _timeOut,
_converter.ToWalkModeConverter(walkMode));
}
catch (Exception e)
{
_log.Error("SnmpEngine.WalkWithAdditionalCodes(): Exception caught:", e);
_log.Error("SnmpEngine.WalkWithAdditionalCodes(): Exception oid: " + string.Concat(oid.Value, ".", code.Decimal));
}
if (list.Any())
{
_log.Info("SnmpEngine.WalkWithAdditionalCodes(): sucess oid: " + string.Concat(oid.Value, ".", code.Decimal));
_log.Info("SnmpEngine.WalkWithAdditionalCodes(): request result oids: " + list.Count);
results.AddRange(list.Select(var => new SnmpResult(new Oid(string.Concat(oid.Value, ".", code.Decimal),
code.Name, string.Concat(oid.FullName, ".", code.Name)),
var.Data, _converter.ToSnmpDataType(var.Data.TypeCode))));
list.Clear();
}
}
}
codesTable.Clear();
_log.Info("SnmpEngine.WalkWithAdditionalCodes(): Finished");
return results;
}
private IEnumerable<SnmpResult> WalkSingle(SnmpVersion version, IPAddress ipAddress, string octetString, Oid oid, WalkingMode walkMode)
{
_log.Info("SnmpEngine.WalkSingle(): Started oid: " + oid.Value);
var list = new List<Variable>();
if (oid.HasAdditionalCodes)
{
return WalkWithAdditionalCodes(version, ipAddress, octetString, oid, walkMode);
}
try
{
Messenger.Walk(
_converter.ToVersionCodeConverter(version),
new IPEndPoint(ipAddress, SnmpHelper.SnmpServerPort),
new OctetString(octetString),
new ObjectIdentifier(oid.Value),
list,
_timeOut,
_converter.ToWalkModeConverter(walkMode));
}
catch (Exception e)
{
_log.Error("SnmpEngine.WalkSingle(): Exception caught: ", e);
_log.Error("SnmpEngine.WalkSingle(): Exception oid: " + oid.Value);
}
_log.Info("SnmpEngine.WalkSingle(): Finished");
return list.Select(var => new SnmpResult(new Oid(var.Id.ToString()), var.Data, _converter.ToSnmpDataType(var.Data.TypeCode)));
}
private IEnumerable<SnmpResult> WalkBulk(SnmpVersion version, IPAddress ipAddress, int maxBulkRepetitions, string octetString, Oid oid, WalkingMode walkMode)
{
_log.Info("SnmpEngine.WalkBulk(): Started oid: " + oid.Value);
var result = new List<SnmpResult>();
foreach (var childOid in oid.ChildOids)
{
result.AddRange(!childOid.HasChildOids ? WalkBulkSingle(version, ipAddress, maxBulkRepetitions, octetString, childOid, walkMode)
: WalkBulk(version, ipAddress, maxBulkRepetitions, octetString, childOid, walkMode));
}
_log.Info("SnmpEngine.WalkBulk(): Finished");
return result;
}
public SnmpResult(Oid oid, object data, SnmpDataType dataType)
{
_oid = oid;
_data = data;
_dataType = dataType;
}
private static Oid InitializeCode(Oid oid, FileInfo file)
{
var childoids = new List<Oid>();
var xml = XDocument.Load(file.OpenRead());
if (xml.Root == null) return oid;
var rootNode = xml.Root;
if (!ValidateCodeFile(rootNode)) return oid;
var codesElements = rootNode.Elements();
foreach (var element in codesElements)
{
var decimalElement = element.Element(DecimalAttr);
string objId = null;
string name = null;
string fullName = null;
string decsr = null;
if (decimalElement != null)
{
var decVal = decimalElement.Value;
objId = CreateOid(oid.Value, decVal);
}
var nameElement = element.Element(NameAttr);
if (nameElement != null)
{
name = nameElement.Value;
fullName = CreateOid(oid.FullName, name);
}
var descriptionElement = element.Element(DescAttr);
if (descriptionElement != null)
{
decsr = descriptionElement.Value;
}
childoids.Add(new Oid(objId, name, fullName) { Description = decsr });
}
if (childoids.Any())
{
oid.ChildOids = InitializeCodes(childoids);
}
return oid;
}
public Hashtable InitAdditionalCodes(Oid oid)
{
if (!_codesInfo.Any(file => file.Name.Contains(oid.Name + Additions))) return null;
var codesTable = new Hashtable();
var value = DeserializeCodes(_codesInfo.First(file => file.Name.Contains(oid.Name + Additions)));
codesTable.Add(oid.Name, value);
return codesTable;
}
private void ChangeSelection(object context)
{
if (context is Oid)
{
_oidCurrent = (Oid)context;
}
}
