public void TestException()
 {
     var provider = new DESPrivacyProvider(new OctetString("longlongago"), new MD5AuthenticationProvider(new OctetString("verylonglongago")));
     Assert.Throws<ArgumentNullException>(() => new DESPrivacyProvider(null, null));
     Assert.Throws<ArgumentNullException>(() => new DESPrivacyProvider(OctetString.Empty, null));
     Assert.Throws<ArgumentNullException>(() => provider.Encrypt(null, null));
     Assert.Throws<ArgumentNullException>(() => provider.Encrypt(OctetString.Empty, null));
     Assert.Throws<ArgumentException>(() => provider.Encrypt(new Null(), SecurityParameters.Create(OctetString.Empty)));
      
     Assert.Throws<ArgumentNullException>(() => provider.Decrypt(null, null));
     Assert.Throws<ArgumentNullException>(() => provider.Decrypt(OctetString.Empty, null));
     Assert.Throws<ArgumentException>(() => provider.Decrypt(new Null(), SecurityParameters.Create(OctetString.Empty)));
 }
        public void TestDecrypt2()
        {
            byte[] encrypted = ByteTool.Convert("04 38 A4 F9 78 15 2B 14 45 F7 4F C5 B2 1C 82 72 9A 0B D9 EE C1 17 3E E1 26 0D 8B D4 7B 0F D7 35 06 1B E2 14 0D 4A 9B CA BF EF 18 6B 53 B9 FA 70 95 D0 15 38 C5 77 96 85 61 40");
            var privacy = new DESPrivacyProvider(new OctetString("privacyphrase"), new MD5AuthenticationProvider(new OctetString("authentication")));
            var parameters = new SecurityParameters(
                new OctetString(ByteTool.Convert("80001F8880E9630000D61FF449")),
                Integer32.Zero,
                Integer32.Zero,
                new OctetString("lextm"),
                OctetString.Empty,
                new OctetString(ByteTool.Convert("0000000069D39B2A")));
            var data = privacy.Decrypt(DataFactory.CreateSnmpData(encrypted),
                                         parameters);
            Assert.AreEqual(SnmpType.Sequence, data.TypeCode);

            byte[] net =
                ByteTool.Convert(
                    "04 38 A4 F9 78 15 2B 14 45 F7 4F C5 B2 1C 82 72 9A 0B D9 EE C1 17 3E E1 26 0D 8B D4 7B 0F D7 35 06 1B E2 14 0D 4A 9B CA BF EF 18 6B 53 B9 FA 70 95 D0 5D AF 04 5A 68 B5 DA 73");
            var netData = privacy.Decrypt(DataFactory.CreateSnmpData(net), parameters);
            Assert.AreEqual(SnmpType.Sequence, netData.TypeCode);

            Assert.AreEqual(ByteTool.Convert(netData.ToBytes()), ByteTool.Convert(data.ToBytes()));
        }
    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"));
        DESPrivacyProvider priv = new DESPrivacyProvider(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")));
        ISnmpData data = priv.Encrypt(scope.GetData(VersionCode.V3), parameters);
        Assert.AreEqual(SnmpType.OctetString, data.TypeCode);
        Assert.AreEqual(expected, data.ToBytes());
    }
Ejemplo n.º 4
0
        public static void Main(string[] args)
        {
            string      community      = "public";
            bool        showHelp       = false;
            bool        showVersion    = false;
            VersionCode version        = VersionCode.V2; // GET BULK is available in SNMP v2 and above.
            int         timeout        = 1000;
            int         retry          = 0;
            Levels      level          = Levels.Reportable;
            string      user           = string.Empty;
            string      contextName    = string.Empty;
            string      authentication = string.Empty;
            string      authPhrase     = string.Empty;
            string      privacy        = string.Empty;
            string      privPhrase     = string.Empty;
            int         maxRepetitions = 10;
            int         nonRepeaters   = 0;
            bool        dump           = false;

            OptionSet p = new OptionSet()
                          .Add("c:", "Community name, (default is public)", delegate(string v) { if (v != null)
                                                                                                 {
                                                                                                     community = v;
                                                                                                 }
                               })
                          .Add("l:", "Security level, (default is noAuthNoPriv)", delegate(string v)
            {
                if (v.ToUpperInvariant() == "NOAUTHNOPRIV")
                {
                    level = Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHNOPRIV")
                {
                    level = Levels.Authentication | Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHPRIV")
                {
                    level = Levels.Authentication | Levels.Privacy | Levels.Reportable;
                }
                else
                {
                    throw new ArgumentException("no such security mode: " + v);
                }
            })
                          .Add("Cn:", "Non-repeaters (default is 0)", delegate(string v) { nonRepeaters = int.Parse(v); })
                          .Add("Cr:", "Max-repetitions (default is 10)", delegate(string v) { maxRepetitions = int.Parse(v); })
                          .Add("a:", "Authentication method (MD5 or SHA)", delegate(string v) { authentication = v; })
                          .Add("A:", "Authentication passphrase", delegate(string v) { authPhrase = v; })
                          .Add("x:", "Privacy method", delegate(string v) { privacy = v; })
                          .Add("X:", "Privacy passphrase", delegate(string v) { privPhrase = v; })
                          .Add("u:", "Security name", delegate(string v) { user = v; })
                          .Add("C:", "Context name", delegate(string v) { contextName = v; })
                          .Add("h|?|help", "Print this help information.", delegate(string v) { showHelp = v != null; })
                          .Add("V", "Display version number of this application.", delegate(string v) { showVersion = v != null; })
                          .Add("d", "Display message dump", delegate(string v) { dump = true; })
                          .Add("t:", "Timeout value (unit is second).", delegate(string v) { timeout = int.Parse(v) * 1000; })
                          .Add("r:", "Retry count (default is 0)", delegate(string v) { retry = int.Parse(v); })
                          .Add("v:", "SNMP version (2 and 3 are currently supported)", delegate(string v)
            {
                switch (int.Parse(v))
                {
                case 2:
                    version = VersionCode.V2;
                    break;

                case 3:
                    version = VersionCode.V3;
                    break;

                default:
                    throw new ArgumentException("no such version: " + v);
                }
            });

            if (args.Length == 0)
            {
                ShowHelp(p);
                return;
            }

            List <string> extra;

            try
            {
                extra = p.Parse(args);
            }
            catch (OptionException ex)
            {
                Console.WriteLine(ex.Message);
                return;
            }

            if (showHelp)
            {
                ShowHelp(p);
                return;
            }

            if (extra.Count < 2)
            {
                Console.WriteLine("invalid variable number: " + extra.Count);
                return;
            }

            if (showVersion)
            {
                Console.WriteLine(Assembly.GetEntryAssembly().GetCustomAttribute <AssemblyVersionAttribute>().Version);
                return;
            }

            IPAddress ip;
            bool      parsed = IPAddress.TryParse(extra[0], out ip);

            if (!parsed)
            {
                var addresses = Dns.GetHostAddressesAsync(extra[0]);
                addresses.Wait();
                foreach (IPAddress address in
                         addresses.Result.Where(address => address.AddressFamily == AddressFamily.InterNetwork))
                {
                    ip = address;
                    break;
                }

                if (ip == null)
                {
                    Console.WriteLine("invalid host or wrong IP address found: " + extra[0]);
                    return;
                }
            }

            try
            {
                List <Variable> vList = new List <Variable>();
                for (int i = 1; i < extra.Count; i++)
                {
                    Variable test = new Variable(new ObjectIdentifier(extra[i]));
                    vList.Add(test);
                }

                IPEndPoint receiver = new IPEndPoint(ip, 161);
                if (version != VersionCode.V3)
                {
                    GetBulkRequestMessage message = new GetBulkRequestMessage(0,
                                                                              version,
                                                                              new OctetString(community),
                                                                              nonRepeaters,
                                                                              maxRepetitions,
                                                                              vList);
                    ISnmpMessage response = message.GetResponse(timeout, receiver);
                    if (response.Pdu().ErrorStatus.ToInt32() != 0) // != ErrorCode.NoError
                    {
                        throw ErrorException.Create(
                                  "error in response",
                                  receiver.Address,
                                  response);
                    }

                    foreach (Variable variable in response.Pdu().Variables)
                    {
                        Console.WriteLine(variable);
                    }

                    return;
                }

                if (string.IsNullOrEmpty(user))
                {
                    Console.WriteLine("User name need to be specified for v3.");
                    return;
                }

                IAuthenticationProvider auth = (level & Levels.Authentication) == Levels.Authentication
                                                   ? GetAuthenticationProviderByName(authentication, authPhrase)
                                                   : DefaultAuthenticationProvider.Instance;

                IPrivacyProvider priv;
                if ((level & Levels.Privacy) == Levels.Privacy)
                {
                    if (DESPrivacyProvider.IsSupported)
                    {
                        priv = new DESPrivacyProvider(new OctetString(privPhrase), auth);
                    }
                    else
                    {
                        Console.WriteLine("DES (ECB) is not supported by .NET Core.");
                        return;
                    }
                }
                else
                {
                    priv = new DefaultPrivacyProvider(auth);
                }

                Discovery     discovery = Messenger.GetNextDiscovery(SnmpType.GetBulkRequestPdu);
                ReportMessage report    = discovery.GetResponse(timeout, receiver);

                GetBulkRequestMessage request = new GetBulkRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(user), new OctetString(string.IsNullOrWhiteSpace(contextName) ? string.Empty : contextName), nonRepeaters, maxRepetitions, vList, priv, Messenger.MaxMessageSize, report);
                ISnmpMessage          reply   = request.GetResponse(timeout, receiver);
                if (dump)
                {
                    Console.WriteLine("Request message bytes:");
                    Console.WriteLine(ByteTool.Convert(request.ToBytes()));
                    Console.WriteLine("Response message bytes:");
                    Console.WriteLine(ByteTool.Convert(reply.ToBytes()));
                }

                if (reply is ReportMessage)
                {
                    if (reply.Pdu().Variables.Count == 0)
                    {
                        Console.WriteLine("wrong report message received");
                        return;
                    }

                    var id = reply.Pdu().Variables[0].Id;
                    if (id != Messenger.NotInTimeWindow)
                    {
                        var error = id.GetErrorMessage();
                        Console.WriteLine(error);
                        return;
                    }

                    // according to RFC 3414, send a second request to sync time.
                    request = new GetBulkRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(user), new OctetString(string.IsNullOrWhiteSpace(contextName) ? string.Empty : contextName), nonRepeaters, maxRepetitions, vList, priv, Messenger.MaxMessageSize, reply);
                    reply   = request.GetResponse(timeout, receiver);
                }
                else if (reply.Pdu().ErrorStatus.ToInt32() != 0) // != ErrorCode.NoError
                {
                    throw ErrorException.Create(
                              "error in response",
                              receiver.Address,
                              reply);
                }

                foreach (Variable v in reply.Pdu().Variables)
                {
                    Console.WriteLine(v);
                }
            }
            catch (SnmpException ex)
            {
                Console.WriteLine(ex);
            }
            catch (SocketException ex)
            {
                Console.WriteLine(ex);
            }
        }
Ejemplo n.º 5
0
        public SNMTPconnector(
            string authPwd,
            string privPwd,
            string userName,
            string senderIp,
            string receiverIp,
            string receiverPort,
            string version,
            string encoding)
        {
            myVersion = version;

            switch (encoding)
            {
            case "UTF7":
                Encoding = Encoding.UTF7;
                break;

            case "BigEndianUnicode":
                Encoding = Encoding.BigEndianUnicode;
                break;

            case "Unicode":
                Encoding = Encoding.Unicode;
                break;

            case "ASCII":
                Encoding = Encoding.ASCII;
                break;

            case "UTF8":
                Encoding = Encoding.UTF8;
                break;

            case "UTF32":
                Encoding = Encoding.UTF32;
                break;

            default:
                Encoding = Encoding.Default;
                break;
            }

            try
            {
                IpRequestPORT = System.Convert.ToInt32(receiverPort);
            }
            catch (Exception)
            {
                IpRequestPORT = 161;
            }


            ErrorString = "";

            Auth  = new SHA1AuthenticationProvider(new OctetString(authPwd, Encoding));
            Priv  = new DESPrivacyProvider(new OctetString(privPwd, Encoding), Auth);
            UName = new OctetString(userName, Encoding);

            try
            {
                IpRequestSender = IPAddress.Parse(senderIp);
            }
            catch (Exception ex)
            {
                ErrorString = String.Format("{0}\r\n{1}", ErrorString, ex.ToString());
            }

            try
            {
                IpRequestManager = IPAddress.Parse(receiverIp);
            }
            catch (Exception ex)
            {
                ErrorString = String.Format("{0}\r\n{1}", ErrorString, ex.ToString());
            }

            switch (version)
            {
            case "V1":
                VersionCode = VersionCode.V1;
                break;

            case "V2":
                VersionCode = VersionCode.V2;
                break;

            case "V3":
                VersionCode = VersionCode.V3;
                break;
            }
        }
Ejemplo n.º 6
0
        static void Main(string[] args)
        {
            string      community      = "public";
            bool        showHelp       = false;
            bool        showVersion    = false;
            VersionCode version        = VersionCode.V1;
            int         timeout        = 1000;
            int         retry          = 0;
            Levels      level          = Levels.Reportable;
            string      user           = string.Empty;
            string      authentication = string.Empty;
            string      authPhrase     = string.Empty;
            string      privacy        = string.Empty;
            string      privPhrase     = string.Empty;
            bool        dump           = false;

            OptionSet p = new OptionSet()
                          .Add("c:", "Community name, (default is public)", delegate(string v) { if (v != null)
                                                                                                 {
                                                                                                     community = v;
                                                                                                 }
                               })
                          .Add("l:", "Security level, (default is noAuthNoPriv)", delegate(string v)
            {
                if (v.ToUpperInvariant() == "NOAUTHNOPRIV")
                {
                    level = Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHNOPRIV")
                {
                    level = Levels.Authentication | Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHPRIV")
                {
                    level = Levels.Authentication | Levels.Privacy | Levels.Reportable;
                }
                else
                {
                    throw new ArgumentException("no such security mode: " + v);
                }
            })
                          .Add("a:", "Authentication method (MD5 or SHA)", delegate(string v) { authentication = v; })
                          .Add("A:", "Authentication passphrase", delegate(string v) { authPhrase = v; })
                          .Add("x:", "Privacy method", delegate(string v) { privacy = v; })
                          .Add("X:", "Privacy passphrase", delegate(string v) { privPhrase = v; })
                          .Add("u:", "Security name", delegate(string v) { user = v; })
                          .Add("h|?|help", "Print this help information.", delegate(string v) { showHelp = v != null; })
                          .Add("V", "Display version number of this application.", delegate(string v) { showVersion = v != null; })
                          .Add("d", "Display message dump", delegate(string v) { dump = true; })
                          .Add("t:", "Timeout value (unit is second).", delegate(string v) { timeout = int.Parse(v) * 1000; })
                          .Add("r:", "Retry count (default is 0)", delegate(string v) { retry = int.Parse(v); })
                          .Add("v:", "SNMP version (1, 2, and 3 are currently supported)", delegate(string v)
            {
                switch (int.Parse(v))
                {
                case 1:
                    version = VersionCode.V1;
                    break;

                case 2:
                    version = VersionCode.V2;
                    break;

                case 3:
                    version = VersionCode.V3;
                    break;

                default:
                    throw new ArgumentException("no such version: " + v);
                }
            });

            if (args.Length == 0)
            {
                ShowHelp(p);
                return;
            }

            List <string> extra;

            try
            {
                extra = p.Parse(args);
            }
            catch (OptionException ex)
            {
                Console.WriteLine(ex.Message);
                return;
            }

            if (showHelp)
            {
                ShowHelp(p);
                return;
            }

            if ((extra.Count - 1) % 3 != 0)
            {
                Console.WriteLine("invalid variable number: " + extra.Count);
                return;
            }

            if (showVersion)
            {
                Console.WriteLine(System.Reflection.Assembly.GetExecutingAssembly().GetName().Version);
                return;
            }

            IPAddress ip;
            bool      parsed = IPAddress.TryParse(extra[0], out ip);

            if (!parsed)
            {
                foreach (IPAddress address in
                         Dns.GetHostAddresses(extra[0]).Where(address => address.AddressFamily == AddressFamily.InterNetwork))
                {
                    ip = address;
                    break;
                }

                if (ip == null)
                {
                    Console.WriteLine("invalid host or wrong IP address found: " + extra[0]);
                    return;
                }
            }

            try
            {
                List <Variable> vList = new List <Variable>();
                for (int i = 1; i < extra.Count; i = i + 3)
                {
                    string type = extra[i + 1];
                    if (type.Length != 1)
                    {
                        Console.WriteLine("invalid type string: " + type);
                        return;
                    }

                    ISnmpData data;

                    switch (type[0])
                    {
                    case 'i':
                        data = new Integer32(int.Parse(extra[i + 2]));
                        break;

                    case 'u':
                        data = new Gauge32(uint.Parse(extra[i + 2]));
                        break;

                    case 't':
                        data = new TimeTicks(uint.Parse(extra[i + 2]));
                        break;

                    case 'a':
                        data = new IP(IPAddress.Parse(extra[i + 2]));
                        break;

                    case 'o':
                        data = new ObjectIdentifier(extra[i + 2]);
                        break;

                    case 'x':
                        data = new OctetString(ByteTool.Convert(extra[i + 2]));
                        break;

                    case 's':
                        data = new OctetString(extra[i + 2]);
                        break;

                    case 'd':
                        data = new OctetString(ByteTool.ConvertDecimal(extra[i + 2]));
                        break;

                    case 'n':
                        data = new Null();
                        break;

                    default:
                        Console.WriteLine("unknown type string: " + type[0]);
                        return;
                    }

                    Variable test = new Variable(new ObjectIdentifier(extra[i]), data);
                    vList.Add(test);
                }

                IPEndPoint receiver = new IPEndPoint(ip, 161);
                if (version != VersionCode.V3)
                {
                    foreach (Variable variable in
                             Messenger.Set(version, receiver, new OctetString(community), vList, timeout))
                    {
                        Console.WriteLine(variable);
                    }

                    return;
                }

                if (string.IsNullOrEmpty(user))
                {
                    Console.WriteLine("User name need to be specified for v3.");
                    return;
                }

                IAuthenticationProvider auth = (level & Levels.Authentication) == Levels.Authentication
                                                   ? GetAuthenticationProviderByName(authentication, authPhrase)
                                                   : DefaultAuthenticationProvider.Instance;

                IPrivacyProvider priv;
                if ((level & Levels.Privacy) == Levels.Privacy)
                {
                    priv = new DESPrivacyProvider(new OctetString(privPhrase), auth);
                }
                else
                {
                    priv = new DefaultPrivacyProvider(auth);
                }

                Discovery     discovery = Messenger.GetNextDiscovery(SnmpType.SetRequestPdu);
                ReportMessage report    = discovery.GetResponse(timeout, receiver);

                SetRequestMessage request = new SetRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(user), vList, priv, Messenger.MaxMessageSize, report);
                ISnmpMessage      reply   = request.GetResponse(timeout, receiver);
                if (dump)
                {
                    Console.WriteLine("Request message bytes:");
                    Console.WriteLine(ByteTool.Convert(request.ToBytes()));
                    Console.WriteLine("Response message bytes:");
                    Console.WriteLine(ByteTool.Convert(reply.ToBytes()));
                }

                if (reply is ReportMessage)
                {
                    if (reply.Pdu().Variables.Count == 0)
                    {
                        Console.WriteLine("wrong report message received");
                        return;
                    }

                    var id = reply.Pdu().Variables[0].Id;
                    if (id != Messenger.NotInTimeWindow)
                    {
                        var error = id.GetErrorMessage();
                        Console.WriteLine(error);
                        return;
                    }

                    // according to RFC 3414, send a second request to sync time.
                    request = new SetRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(user), vList, priv, Messenger.MaxMessageSize, reply);
                    reply   = request.GetResponse(timeout, receiver);
                }
                else if (reply.Pdu().ErrorStatus.ToInt32() != 0) // != ErrorCode.NoError
                {
                    throw ErrorException.Create(
                              "error in response",
                              receiver.Address,
                              reply);
                }

                foreach (Variable v in reply.Pdu().Variables)
                {
                    Console.WriteLine(v);
                }
            }
            catch (SnmpException ex)
            {
                Console.WriteLine(ex);
            }
            catch (SocketException ex)
            {
                Console.WriteLine(ex);
            }
        }
Ejemplo n.º 7
0
        public static void Main(string[] args)
        {
            string      community      = "public";
            bool        showHelp       = false;
            bool        showVersion    = false;
            VersionCode version        = VersionCode.V1;
            int         timeout        = 1000;
            int         retry          = 0;
            int         maxRepetitions = 10;
            Levels      level          = Levels.Reportable;
            string      user           = string.Empty;
            string      authentication = string.Empty;
            string      authPhrase     = string.Empty;
            string      privacy        = string.Empty;
            string      privPhrase     = string.Empty;
            WalkMode    mode           = WalkMode.WithinSubtree;
            bool        dump           = false;

            OptionSet p = new OptionSet()
                          .Add("c:", "Community name, (default is public)", delegate(string v) { if (v != null)
                                                                                                 {
                                                                                                     community = v;
                                                                                                 }
                               })
                          .Add("l:", "Security level, (default is noAuthNoPriv)", delegate(string v)
            {
                if (v.ToUpperInvariant() == "NOAUTHNOPRIV")
                {
                    level = Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHNOPRIV")
                {
                    level = Levels.Authentication | Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHPRIV")
                {
                    level = Levels.Authentication | Levels.Privacy | Levels.Reportable;
                }
                else
                {
                    throw new ArgumentException("no such security mode: " + v);
                }
            })
                          .Add("a:", "Authentication method (MD5 or SHA)", delegate(string v) { authentication = v; })
                          .Add("A:", "Authentication passphrase", delegate(string v) { authPhrase = v; })
                          .Add("x:", "Privacy method", delegate(string v) { privacy = v; })
                          .Add("X:", "Privacy passphrase", delegate(string v) { privPhrase = v; })
                          .Add("u:", "Security name", delegate(string v) { user = v; })
                          .Add("h|?|help", "Print this help information.", delegate(string v) { showHelp = v != null; })
                          .Add("V", "Display version number of this application.", delegate(string v) { showVersion = v != null; })
                          .Add("d", "Display message dump", delegate(string v) { dump = true; })
                          .Add("t:", "Timeout value (unit is second).", delegate(string v) { timeout = int.Parse(v) * 1000; })
                          .Add("r:", "Retry count (default is 0)", delegate(string v) { retry = int.Parse(v); })
                          .Add("v|version:", "SNMP version (1, 2, and 3 are currently supported)", delegate(string v)
            {
                switch (int.Parse(v))
                {
                case 1:
                    version = VersionCode.V1;
                    break;

                case 2:
                    version = VersionCode.V2;
                    break;

                case 3:
                    version = VersionCode.V3;
                    break;

                default:
                    throw new ArgumentException("no such version: " + v);
                }
            })
                          .Add("m|mode:", "WALK mode (subtree, all are supported)", delegate(string v)
            {
                if (v == "subtree")
                {
                    mode = WalkMode.WithinSubtree;
                }
                else if (v == "all")
                {
                    mode = WalkMode.Default;
                }
                else
                {
                    throw new ArgumentException("unknown argument: " + v);
                }
            })
                          .Add("Cr:", "Max-repetitions (default is 10)", delegate(string v) { maxRepetitions = int.Parse(v); });

            if (args.Length == 0)
            {
                ShowHelp(p);
                return;
            }

            List <string> extra;

            try
            {
                extra = p.Parse(args);
            }
            catch (OptionException ex)
            {
                Console.WriteLine(ex.Message);
                return;
            }

            if (showHelp)
            {
                ShowHelp(p);
                return;
            }

            if (extra.Count < 1 || extra.Count > 2)
            {
                Console.WriteLine("invalid variable number: " + extra.Count);
                return;
            }

            if (showVersion)
            {
                Console.WriteLine(System.Reflection.Assembly.GetExecutingAssembly().GetName().Version);
                return;
            }

            IPAddress ip;
            bool      parsed = IPAddress.TryParse(extra[0], out ip);

            if (!parsed)
            {
                foreach (IPAddress address in
                         Dns.GetHostAddresses(extra[0]).Where(address => address.AddressFamily == AddressFamily.InterNetwork))
                {
                    ip = address;
                    break;
                }

                if (ip == null)
                {
                    Console.WriteLine("invalid host or wrong IP address found: " + extra[0]);
                    return;
                }
            }

            try
            {
                ObjectIdentifier test     = extra.Count == 1 ? new ObjectIdentifier("1.3.6.1.2.1") : new ObjectIdentifier(extra[1]);
                IList <Variable> result   = new List <Variable>();
                IPEndPoint       receiver = new IPEndPoint(ip, 161);
                if (version == VersionCode.V1)
                {
                    Messenger.Walk(version, receiver, new OctetString(community), test, result, timeout, mode);
                }
                else if (version == VersionCode.V2)
                {
                    Messenger.BulkWalk(version, receiver, new OctetString(community), test, result, timeout, maxRepetitions, mode, null, null);
                }
                else
                {
                    if (string.IsNullOrEmpty(user))
                    {
                        Console.WriteLine("User name need to be specified for v3.");
                        return;
                    }

                    IAuthenticationProvider auth = (level & Levels.Authentication) == Levels.Authentication
                        ? GetAuthenticationProviderByName(authentication, authPhrase)
                        : DefaultAuthenticationProvider.Instance;
                    IPrivacyProvider priv;
                    if ((level & Levels.Privacy) == Levels.Privacy)
                    {
                        priv = new DESPrivacyProvider(new OctetString(privPhrase), auth);
                    }
                    else
                    {
                        priv = new DefaultPrivacyProvider(auth);
                    }

                    Discovery     discovery = Messenger.GetNextDiscovery(SnmpType.GetBulkRequestPdu);
                    ReportMessage report    = discovery.GetResponse(timeout, receiver);
                    Messenger.BulkWalk(version, receiver, new OctetString(user), test, result, timeout, maxRepetitions, mode, priv, report);
                }

                foreach (Variable variable in result)
                {
                    Console.WriteLine(variable);
                }
            }
            catch (SnmpException ex)
            {
                Console.WriteLine(ex);
            }
            catch (SocketException ex)
            {
                Console.WriteLine(ex);
            }
        }
Ejemplo n.º 8
0
        public static void Main(string[] args)
        {
            string      community      = "public";
            bool        showHelp       = false;
            bool        showVersion    = false;
            VersionCode version        = VersionCode.V1;
            int         timeout        = 1000;
            int         retry          = 0;
            Levels      level          = Levels.Reportable;
            string      user           = string.Empty;
            string      authentication = string.Empty;
            string      authPhrase     = string.Empty;
            string      privacy        = string.Empty;
            string      privPhrase     = string.Empty;

            OptionSet p = new OptionSet()
                          .Add("c:", "-c for community name, (default is public)", delegate(string v) { if (v != null)
                                                                                                        {
                                                                                                            community = v;
                                                                                                        }
                               })
                          .Add("l:", "-l for security level, (default is noAuthNoPriv)", delegate(string v)
            {
                if (v.ToUpperInvariant() == "NOAUTHNOPRIV")
                {
                    level = Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHNOPRIV")
                {
                    level = Levels.Authentication | Levels.Reportable;
                }
                else if (v.ToUpperInvariant() == "AUTHPRIV")
                {
                    level = Levels.Authentication | Levels.Privacy | Levels.Reportable;
                }
                else
                {
                    throw new ArgumentException("no such security mode: " + v);
                }
            })
                          .Add("a:", "-a for authentication method (MD5 or SHA)", delegate(string v) { authentication = v; })
                          .Add("A:", "-A for authentication passphrase", delegate(string v) { authPhrase = v; })
                          .Add("x:", "-x for privacy method", delegate(string v) { privacy = v; })
                          .Add("X:", "-X for privacy passphrase", delegate(string v) { privPhrase = v; })
                          .Add("u:", "-u for security name", delegate(string v) { user = v; })
                          .Add("h|?|help", "-h, -?, -help for help.", delegate(string v) { showHelp = v != null; })
                          .Add("V", "-V to display version number of this application.", delegate(string v) { showVersion = v != null; })
                          .Add("t:", "-t for timeout value (unit is second).", delegate(string v) { timeout = int.Parse(v) * 1000; })
                          .Add("r:", "-r for retry count (default is 0)", delegate(string v) { retry = int.Parse(v); })
                          .Add("v:", "-v for SNMP version (1, 2, and 3 are currently supported)", delegate(string v)
            {
                switch (int.Parse(v))
                {
                case 1:
                    version = VersionCode.V1;
                    break;

                case 2:
                    version = VersionCode.V2;
                    break;

                case 3:
                    version = VersionCode.V3;
                    break;

                default:
                    throw new ArgumentException("no such version: " + v);
                }
            });

            List <string> extra = p.Parse(args);

            if (showHelp)
            {
                ShowHelp();
                return;
            }

            if (showVersion)
            {
                Console.WriteLine(System.Reflection.Assembly.GetExecutingAssembly().GetName().Version);
                return;
            }

            if (extra.Count < 2)
            {
                ShowHelp();
                return;
            }

            IPAddress ip;
            bool      parsed = IPAddress.TryParse(extra[0], out ip);

            if (!parsed)
            {
                foreach (IPAddress address in
                         Dns.GetHostAddresses(extra[0]).Where(address => address.AddressFamily == AddressFamily.InterNetwork))
                {
                    ip = address;
                    break;
                }

                if (ip == null)
                {
                    Console.WriteLine("invalid host or wrong IP address found: " + extra[0]);
                    return;
                }
            }

            try
            {
                List <Variable> vList = new List <Variable>();
                for (int i = 1; i < extra.Count; i++)
                {
                    Variable test = new Variable(new ObjectIdentifier(extra[i]));
                    vList.Add(test);
                }

                IPEndPoint receiver = new IPEndPoint(ip, 161);
                if (version != VersionCode.V3)
                {
                    GetNextRequestMessage message = new GetNextRequestMessage(0,
                                                                              version,
                                                                              new OctetString(community),
                                                                              vList);
                    ISnmpMessage response = message.GetResponse(timeout, receiver);
                    if (response.Pdu().ErrorStatus.ToInt32() != 0) // != ErrorCode.NoError
                    {
                        throw ErrorException.Create(
                                  "error in response",
                                  receiver.Address,
                                  response);
                    }

                    foreach (Variable variable in response.Pdu().Variables)
                    {
                        Console.WriteLine(variable);
                    }

                    return;
                }

                if (string.IsNullOrEmpty(user))
                {
                    Console.WriteLine("User name need to be specified for v3.");
                    return;
                }

                IAuthenticationProvider auth = (level & Levels.Authentication) == Levels.Authentication
                                                   ? GetAuthenticationProviderByName(authentication, authPhrase)
                                                   : DefaultAuthenticationProvider.Instance;

                IPrivacyProvider priv;
                if ((level & Levels.Privacy) == Levels.Privacy)
                {
                    priv = new DESPrivacyProvider(new OctetString(privPhrase), auth);
                }
                else
                {
                    priv = new DefaultPrivacyProvider(auth);
                }

                Discovery     discovery = Messenger.NextDiscovery;
                ReportMessage report    = discovery.GetResponse(timeout, receiver);

                GetNextRequestMessage request = new GetNextRequestMessage(VersionCode.V3, Messenger.NextMessageId, Messenger.NextRequestId, new OctetString(user), vList, priv, Messenger.MaxMessageSize, report);

                ISnmpMessage reply = request.GetResponse(timeout, receiver);
                if (reply.Pdu().ErrorStatus.ToInt32() != 0) // != ErrorCode.NoError
                {
                    throw ErrorException.Create(
                              "error in response",
                              receiver.Address,
                              reply);
                }

                foreach (Variable v in reply.Pdu().Variables)
                {
                    Console.WriteLine(v);
                }
            }
            catch (SnmpException ex)
            {
                Console.WriteLine(ex);
            }
            catch (SocketException ex)
            {
                Console.WriteLine(ex);
            }
        }