public Scope(ISnmpPdu pdu)
{
if (pdu == null)
{
throw new ArgumentNullException("pdu");
}
Pdu = pdu;
}
public void TestResponseV1()
{
ISnmpMessage message = MessageFactory.ParseMessages(Properties.Resources.getresponse, new UserRegistry())[0];
Assert.Equal(SnmpType.ResponsePdu, message.TypeCode());
ISnmpPdu pdu = message.Pdu();
Assert.Equal(SnmpType.ResponsePdu, pdu.TypeCode);
ResponsePdu response = (ResponsePdu)pdu;
Assert.Equal(Integer32.Zero, response.ErrorStatus);
Assert.Equal(0, response.ErrorIndex.ToInt32());
Assert.Equal(1, response.Variables.Count);
Variable v = response.Variables[0];
Assert.Equal(new uint[] { 1, 3, 6, 1, 2, 1, 1, 6, 0 }, v.Id.ToNumerical());
Assert.Equal("Shanghai", v.Data.ToString());
}
private IEnumerable <DataUnit> ExtractMessageData(ISnmpPdu pdu)
{
var operation = DetectOperation(pdu.TypeCode);
foreach (var item in pdu.Variables)
{
var oid = string.Join(".", item.Id.ToNumerical());
DataType type = item.DetectDataType();
DataUnit data = new DataUnit(oid, type, operation);
if (operation == Operation.Set)
{
data.Value = item.Data.ToString();
}
yield return(data);
}
}
public TrapV1Message(VersionCode version, IPAddress agent, OctetString community, ObjectIdentifier enterprise, GenericCode generic, int specific, uint time, IList <Variable> variables)
{
if (variables == null)
{
throw new ArgumentNullException("variables");
}
if (enterprise == null)
{
throw new ArgumentNullException("enterprise");
}
if (community == null)
{
throw new ArgumentNullException("community");
}
if (agent == null)
{
throw new ArgumentNullException("agent");
}
Version = version;
AgentAddress = agent;
Community = community;
Enterprise = enterprise;
Generic = generic;
Specific = specific;
TimeStamp = time;
TrapV1Pdu pdu = new TrapV1Pdu(
Enterprise,
new IP(AgentAddress),
new Integer32((int)Generic),
new Integer32(Specific),
new TimeTicks(TimeStamp),
variables);
_pdu = pdu;
Parameters = SecurityParameters.Create(Community);
_bytes = SnmpMessageExtension.PackMessage(Version, Community, pdu).ToBytes();
}
public TrapV1Message(
VersionCode version, IPAddress agent, OctetString community, ObjectIdentifier enterprise, GenericCode generic, int specific, uint time,
IList <Variable> variables)
{
if (variables == null)
{
throw new ArgumentNullException("variables");
}
if (enterprise == null)
{
throw new ArgumentNullException("enterprise");
}
if (community == null)
{
throw new ArgumentNullException("community");
}
if (agent == null)
{
throw new ArgumentNullException("agent");
}
if (version != VersionCode.V1)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "TRAP v1 is not supported in this SNMP version: {0}", version), "version");
}
Version = version;
AgentAddress = agent;
Community = community;
Enterprise = enterprise;
Generic = generic;
Specific = specific;
TimeStamp = time;
var pdu = new TrapV1Pdu(Enterprise, new IP(AgentAddress.GetAddressBytes()), new Integer32((int)Generic), new Integer32(Specific),
new TimeTicks(TimeStamp), variables);
_pdu = pdu;
Parameters = SecurityParameters.Create(Community);
}
public Scope(OctetString contextEngineId, OctetString contextName, ISnmpPdu pdu)
{
if (contextEngineId == null)
{
throw new ArgumentNullException(nameof(contextEngineId));
}
if (contextName == null)
{
throw new ArgumentNullException(nameof(contextName));
}
if (pdu == null)
{
throw new ArgumentNullException(nameof(pdu));
}
ContextEngineId = contextEngineId;
ContextName = contextName;
Pdu = pdu;
}
public Scope(OctetString contextEngineId, OctetString contextName, ISnmpPdu pdu)
{
if (contextEngineId == null)
{
throw new ArgumentNullException("contextEngineId");
}
if (contextName == null)
{
throw new ArgumentNullException("contextName");
}
if (pdu == null)
{
throw new ArgumentNullException("pdu");
}
ContextEngineId = contextEngineId;
ContextName = contextName;
Pdu = pdu;
}
/// <summary>
/// Creates a <see cref="TrapV1Message"/> instance with a message body.
/// </summary>
/// <param name="body">Message body</param>
public TrapV1Message(IPAddress senderIp, Sequence body)
{
if (body == null)
{
throw new ArgumentNullException("body");
}
if (body.Length != 3)
{
throw new ArgumentException("wrong message body");
}
Community = (OctetString)body[1];
Version = (VersionCode)((Integer32)body[0]).ToInt32();
// IMPORTANT: comment this check out if you need to support
if (Version != VersionCode.V1)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "TRAP v1 is not supported in this SNMP version: {0}", Version), "body");
}
_pdu = (ISnmpPdu)body[2];
if (_pdu.TypeCode != SnmpType.TrapV1Pdu)
{
throw new ArgumentException("wrong message type");
}
var trapPdu = (TrapV1Pdu)_pdu;
Enterprise = trapPdu.Enterprise;
AgentAddress = senderIp != null?senderIp:trapPdu.AgentAddress.ToIPAddress();
Generic = trapPdu.Generic;
Specific = trapPdu.Specific;
TimeStamp = trapPdu.TimeStamp.ToUInt32();
Parameters = SecurityParameters.Create(Community);
_bytes = SnmpMessageExtension.PackMessage(Version, Community, _pdu).ToBytes();
}
public void TestResponseVersion3_2()
{
var engine = CreateEngine();
engine.Listener.ClearBindings();
var serverEndPoint = new IPEndPoint(IPAddress.Loopback, Port.NextId);
engine.Listener.AddBinding(serverEndPoint);
engine.Start();
try
{
IAuthenticationProvider auth = new MD5AuthenticationProvider(new OctetString("authenticationauthentication"));
IPrivacyProvider priv = new DefaultPrivacyProvider(auth);
var timeout = 3000;
Discovery discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
ReportMessage report = discovery.GetResponse(timeout, serverEndPoint);
var expected = Messenger.NextRequestId;
GetRequestMessage request = new GetRequestMessage(VersionCode.V3, Messenger.NextMessageId, expected, new OctetString("authen"), OctetString.Empty, new List <Variable> {
new Variable(new ObjectIdentifier("1.3.6.1.2.1.1.1.0"))
}, priv, Messenger.MaxMessageSize, report);
ISnmpMessage reply = request.GetResponse(timeout, serverEndPoint);
ISnmpPdu snmpPdu = reply.Pdu();
Assert.Equal(SnmpType.ResponsePdu, snmpPdu.TypeCode);
Assert.Equal(expected, reply.RequestId());
Assert.Equal(ErrorCode.NoError, snmpPdu.ErrorStatus.ToErrorCode());
}
finally
{
if (SnmpMessageExtension.IsRunningOnWindows)
{
engine.Stop();
}
}
}
/// <summary>
/// Creates a <see cref="TrapV1Message"/> instance with a message body.
/// </summary>
/// <param name="body">Message body</param>
public TrapV1Message(Sequence body)
{
if (body == null)
{
throw new ArgumentNullException(nameof(body));
}
if (body.Length != 3)
{
throw new ArgumentException("Invalid message body.", nameof(body));
}
Community = (OctetString)body[1];
Version = (VersionCode)((Integer32)body[0]).ToInt32();
// IMPORTANT: comment this check out if you need to support
if (Version != VersionCode.V1)
{
throw new ArgumentException($"TRAP v1 is not supported in this SNMP version: {Version}.", nameof(body));
}
_pdu = (ISnmpPdu)body[2];
if (_pdu.TypeCode != SnmpType.TrapV1Pdu)
{
throw new ArgumentException("Invalid message type.", nameof(body));
}
TrapV1Pdu trapPdu = (TrapV1Pdu)_pdu;
Enterprise = trapPdu.Enterprise;
AgentAddress = new IPAddress(trapPdu.AgentAddress.GetRaw());
Generic = trapPdu.Generic;
Specific = trapPdu.Specific;
TimeStamp = trapPdu.TimeStamp.ToUInt32();
Parameters = SecurityParameters.Create(Community);
_container = body;
}
public TrapV1Message(VersionCode version, IPAddress agent, OctetString community, ObjectIdentifier enterprise, GenericCode generic, int specific, uint time, IList<Variable> variables)
{
if (variables == null)
{
throw new ArgumentNullException("variables");
}
if (enterprise == null)
{
throw new ArgumentNullException("enterprise");
}
if (community == null)
{
throw new ArgumentNullException("community");
}
if (agent == null)
{
throw new ArgumentNullException("agent");
}
if (version != VersionCode.V1)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "TRAP v1 is not supported in this SNMP version: {0}", version), "version");
}
Version = version;
AgentAddress = agent;
Community = community;
Enterprise = enterprise;
Generic = generic;
Specific = specific;
TimeStamp = time;
var pdu = new TrapV1Pdu(
Enterprise,
new IP(AgentAddress),
new Integer32((int)Generic),
new Integer32(Specific),
new TimeTicks(TimeStamp),
variables);
_pdu = pdu;
Parameters = SecurityParameters.Create(Community);
}
/// <summary>
/// Creates a <see cref="TrapV1Message"/> instance with a message body.
/// </summary>
/// <param name="body">Message body</param>
public TrapV1Message(Sequence body)
{
if (body == null)
{
throw new ArgumentNullException("body");
}
if (body.Length != 3)
{
throw new ArgumentException("wrong message body");
}
Community = (OctetString)body[1];
Version = (VersionCode)((Integer32)body[0]).ToInt32();
// IMPORTANT: comment this check out if you need to support
if (Version != VersionCode.V1)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "TRAP v1 is not supported in this SNMP version: {0}", Version), "body");
}
_pdu = (ISnmpPdu)body[2];
if (_pdu.TypeCode != SnmpType.TrapV1Pdu)
{
throw new ArgumentException("wrong message type");
}
var trapPdu = (TrapV1Pdu)_pdu;
Enterprise = trapPdu.Enterprise;
AgentAddress = trapPdu.AgentAddress.ToIPAddress();
Generic = trapPdu.Generic;
Specific = trapPdu.Specific;
TimeStamp = trapPdu.TimeStamp.ToUInt32();
Parameters = SecurityParameters.Create(Community);
_container = body;
}
public void Handle(ISnmpContext context, ObjectStore store)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (store == null)
{
throw new ArgumentNullException("store");
}
ISnmpPdu pdu = context.Request.Pdu();
IList <Variable> result = new List <Variable>();
int index = 0;
int nonrepeaters = pdu.ErrorStatus.ToInt32();
var variables = pdu.Variables;
for (int i = 0; i < nonrepeaters; i++)
{
Variable v = variables[i];
index++;
try
{
ScalarObject next = store.GetNextObject(v.Id);
result.Add(next == null ? new Variable(v.Id, new EndOfMibView()) : next.Variable);
}
catch (Exception)
{
context.CopyRequest(ErrorCode.GenError, index);
return;
}
}
for (int j = nonrepeaters; j < variables.Count; j++)
{
Variable v = variables[j];
index++;
Variable temp = v;
int repetition = pdu.ErrorIndex.ToInt32();
while (repetition-- > 0)
{
try
{
ScalarObject next = store.GetNextObject(temp.Id);
if (next == null)
{
temp = new Variable(temp.Id, new EndOfMibView());
result.Add(temp);
break;
}
// TODO: how to handle write only object here?
result.Add(next.Variable);
temp = next.Variable;
}
catch (Exception)
{
context.CopyRequest(ErrorCode.GenError, index);
return;
}
}
}
context.GenerateResponse(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="Scope"/> class.
/// </summary>
/// <param name="pdu">The PDU.</param>
public Scope(ISnmpPdu pdu)
{
Pdu = pdu ?? throw new ArgumentNullException(nameof(pdu));
}
/// <summary>
/// Initializes a new instance of the <see cref="Scope"/> class.
/// </summary>
/// <param name="contextEngineId">The context engine ID.</param>
/// <param name="contextName">Name of the context.</param>
/// <param name="pdu">The PDU.</param>
public Scope(OctetString contextEngineId, OctetString contextName, ISnmpPdu pdu)
{
ContextEngineId = contextEngineId ?? throw new ArgumentNullException(nameof(contextEngineId));
ContextName = contextName ?? throw new ArgumentNullException(nameof(contextName));
Pdu = pdu ?? throw new ArgumentNullException(nameof(pdu));
}
