// authNoPriv
private static IPrivacyProvider GetPrivacy(SNMPV3AuthenticationProvider authProvider, string auth)
{
IAuthenticationProvider authenticationProvider;
if (authProvider == SNMPV3AuthenticationProvider.MD5)
{
authenticationProvider = new MD5AuthenticationProvider(new OctetString(auth));
}
else
{
authenticationProvider = new SHA1AuthenticationProvider(new OctetString(auth));
}
return(new DefaultPrivacyProvider(authenticationProvider));
}
// authPriv
private static IPrivacyProvider GetPrivacy(SNMPV3AuthenticationProvider authProvider, string auth, SNMPV3PrivacyProvider privProvider, string priv)
{
IAuthenticationProvider authenticationProvider;
if (authProvider == SNMPV3AuthenticationProvider.MD5)
{
authenticationProvider = new MD5AuthenticationProvider(new OctetString(auth));
}
else
{
authenticationProvider = new SHA1AuthenticationProvider(new OctetString(auth));
}
if (privProvider == SNMPV3PrivacyProvider.DES)
{
return(new DESPrivacyProvider(new OctetString(priv), authenticationProvider));
}
return(new AESPrivacyProvider(new OctetString(priv), authenticationProvider));
}
public void WalkV3Async(IPAddress ipAddress, string oid, SNMPV3Security security, string username, SNMPV3AuthenticationProvider authProvider, SecureString auth, SNMPV3PrivacyProvider privProvider, SecureString priv, WalkMode walkMode)
{
Task.Run(() =>
{
try
{
var ipEndpoint = new IPEndPoint(ipAddress, Port);
// Discovery
var discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
var report = discovery.GetResponse(Timeout, ipEndpoint);
IPrivacyProvider privacy;
switch (security)
{
case SNMPV3Security.AuthPriv:
privacy = GetPrivacy(authProvider, SecureStringHelper.ConvertToString(auth), privProvider, SecureStringHelper.ConvertToString(priv));
break;
// noAuthNoPriv
case SNMPV3Security.AuthNoPriv:
privacy = GetPrivacy(authProvider, SecureStringHelper.ConvertToString(auth));
break;
default:
privacy = GetPrivacy();
break;
}
var results = new List <Variable>();
Messenger.BulkWalk(VersionCode.V3, ipEndpoint, new OctetString(username), OctetString.Empty, new ObjectIdentifier(oid), results, Timeout, 10, walkMode, privacy, report);
foreach (var result in results)
{
OnReceived(new SNMPReceivedArgs(result.Id, result.Data));
}
OnComplete();
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException)
{
OnTimeoutReached();
}
catch (ErrorException)
{
OnError();
}
});
}
public void SetV3Async(IPAddress ipAddress, string oid, SNMPV3Security security, string username, SNMPV3AuthenticationProvider authProvider, SecureString auth, SNMPV3PrivacyProvider privProvider, SecureString priv, string data)
{
Task.Run(() =>
{
try
{
var ipEndpoint = new IPEndPoint(ipAddress, Port);
// Discovery
var discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
var report = discovery.GetResponse(Timeout, ipEndpoint);
IPrivacyProvider privacy;
switch (security)
{
case SNMPV3Security.AuthPriv:
privacy = GetPrivacy(authProvider, SecureStringHelper.ConvertToString(auth), privProvider, SecureStringHelper.ConvertToString(priv));
break;
// noAuthNoPriv
case SNMPV3Security.AuthNoPriv:
privacy = GetPrivacy(authProvider, SecureStringHelper.ConvertToString(auth));
break;
default:
privacy = GetPrivacy();
break;
}
var request = new SetRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(username), OctetString.Empty, new List <Variable> {
new Variable(new ObjectIdentifier(oid), new OctetString(data))
}, privacy, Messenger.MaxMessageSize, report);
var reply = request.GetResponse(Timeout, ipEndpoint);
OnComplete();
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException)
{
OnTimeoutReached();
}
catch (ErrorException)
{
OnError();
}
});
}
public void Getv3Async(IPAddress ipAddress, string oid, SNMPV3Security security, string username, SNMPV3AuthenticationProvider authProvider, string auth, SNMPV3PrivacyProvider privProvider, string priv, SNMPOptions options)
{
Task.Run(() =>
{
try
{
var ipEndpoint = new IPEndPoint(ipAddress, options.Port);
// Discovery
var discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
var report = discovery.GetResponse(options.Timeout, ipEndpoint);
IPrivacyProvider privacy;
switch (security)
{
case SNMPV3Security.AuthPriv:
privacy = GetPrivacy(authProvider, auth, privProvider, priv);
break;
// noAuthNoPriv
case SNMPV3Security.AuthNoPriv:
privacy = GetPrivacy(authProvider, auth);
break;
default:
privacy = GetPrivacy();
break;
}
var request = new GetRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(username), new List <Variable> {
new Variable(new ObjectIdentifier(oid))
}, privacy, Messenger.MaxMessageSize, report);
var reply = request.GetResponse(options.Timeout, ipEndpoint);
var result = reply.Pdu().Variables[0];
OnReceived(new SNMPReceivedArgs(result.Id, result.Data));
OnComplete();
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException)
{
OnTimeout();
}
catch (ErrorException)
{
OnError();
}
});
}
