// authNoPriv
private 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 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));
}
else
{
return(new AESPrivacyProvider(new OctetString(priv), authenticationProvider));
}
}
public void Setv3Async(IPAddress ipAddress, string oid, SNMPv3Security security, string username, SNMPv3AuthenticationProvider authProvider, string auth, SNMPv3PrivacyProvider privProvider, string priv, string data, SNMPOptions options)
{
Task.Run(() =>
{
try
{
IPEndPoint ipEndpoint = new IPEndPoint(ipAddress, options.Port);
// Discovery
Discovery discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
ReportMessage report = discovery.GetResponse(options.Timeout, ipEndpoint);
IPrivacyProvider privacy;
if (security == SNMPv3Security.authPriv)
{
privacy = GetPrivacy(authProvider, auth, privProvider, priv);
}
else if (security == SNMPv3Security.authNoPriv)
{
privacy = GetPrivacy(authProvider, auth);
}
else // noAuthNoPriv
{
privacy = GetPrivacy();
}
SetRequestMessage request = new SetRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(username), new List <Variable> {
new Variable(new ObjectIdentifier(oid), new OctetString(data))
}, privacy, Messenger.MaxMessageSize, report);
ISnmpMessage reply = request.GetResponse(options.Timeout, ipEndpoint);
OnComplete();
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException)
{
OnTimeout();
}
catch (ErrorException)
{
OnError();
}
});
}
public void Walkv3Async(IPAddress ipAddress, string oid, SNMPv3Security security, string username, SNMPv3AuthenticationProvider authProvider, string auth, SNMPv3PrivacyProvider privProvider, string priv, WalkMode walkMode, SNMPOptions options)
{
Task.Run(() =>
{
try
{
IPEndPoint ipEndpoint = new IPEndPoint(ipAddress, options.Port);
// Discovery
Discovery discovery = Messenger.GetNextDiscovery(SnmpType.GetRequestPdu);
ReportMessage report = discovery.GetResponse(options.Timeout, ipEndpoint);
IPrivacyProvider privacy;
if (security == SNMPv3Security.authPriv)
{
privacy = GetPrivacy(authProvider, auth, privProvider, priv);
}
else if (security == SNMPv3Security.authNoPriv)
{
privacy = GetPrivacy(authProvider, auth);
}
else // noAuthNoPriv
{
privacy = GetPrivacy();
}
List <Variable> results = new List <Variable>();
Messenger.BulkWalk(VersionCode.V3, ipEndpoint, new OctetString(username), new ObjectIdentifier(oid), results, options.Timeout, 10, walkMode, privacy, report);
foreach (Variable result in results)
{
OnReceived(new SNMPReceivedArgs(result.Id, result.Data));
}
OnComplete();
}
catch (Lextm.SharpSnmpLib.Messaging.TimeoutException)
{
OnTimeout();
}
catch (ErrorException)
{
OnError();
}
});
}
