Esempio n. 1
0
func get(agent string, oids snmpgo.Oids) {
	// create a SNMP Object for each the agent
	snmp, err := snmpgo.NewSNMP(snmpgo.Arguments{
		Version:   snmpgo.V2c,
		Address:   agent,
		Retries:   1,
		Community: "public",
	})
	if err != nil {
		fmt.Printf("[%s] : construct error - %s\n", agent, err)
		return
	}

	if err = snmp.Open(); err != nil {
		fmt.Printf("[%s] : open error - %s\n", agent, err)
		return
	}
	defer snmp.Close()

	pdu, err := snmp.GetRequest(oids)
	if err != nil {
		fmt.Printf("[%s] : get error - %s\n", agent, err)
		return
	}

	if pdu.ErrorStatus() != snmpgo.NoError {
		fmt.Printf("[%s] : error status - %s at %d\n",
			agent, pdu.ErrorStatus(), pdu.ErrorIndex())
	}

	fmt.Printf("[%s] : %s\n", agent, pdu.VariableBindings())
}
Esempio n. 2
0
func main() {
	snmpArgs, cmdArgs := parseArgs()
	if l := len(cmdArgs); l < 3 {
		usage("required AGENT and UPTIME and TRAP-OID", 2)
	} else if l%3 != 0 {
		usage(fmt.Sprintf("%s: missing TYPE/VALUE for variable", cmdArgs[l/3*3]), 2)
	}

	VariableBindings, err := buildVarBinds(cmdArgs)
	if err != nil {
		usage(err.Error(), 2)
	}

	snmp, err := snmpgo.NewSNMP(*snmpArgs)
	if err != nil {
		usage(err.Error(), 2)
	}
	if err = snmp.Open(); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	defer snmp.Close()

	if inform {
		err = snmp.InformRequest(VariableBindings)
	} else {
		err = snmp.V2Trap(VariableBindings)
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}
Esempio n. 3
0
func main() {
	snmp, err := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:       snmpgo.V3,
		Address:       "127.0.0.1:161",
		Retries:       1,
		UserName:      "******",
		SecurityLevel: snmpgo.AuthPriv,
		AuthPassword:  "******",
		AuthProtocol:  snmpgo.Sha,
		PrivPassword:  "******",
		PrivProtocol:  snmpgo.Aes,
	})
	if err != nil {
		// Failed to create snmpgo.SNMP object
		fmt.Println(err)
		return
	}

	oids, err := snmpgo.NewOids([]string{
		"1.3.6.1.2.1.1.1.0",
		"1.3.6.1.2.1.1.2.0",
		"1.3.6.1.2.1.1.3.0",
	})
	if err != nil {
		// Failed to parse Oids
		fmt.Println(err)
		return
	}

	if err = snmp.Open(); err != nil {
		// Failed to open connection
		fmt.Println(err)
		return
	}
	defer snmp.Close()

	pdu, err := snmp.GetRequest(oids)
	if err != nil {
		// Failed to request
		fmt.Println(err)
		return
	}
	if pdu.ErrorStatus() != snmpgo.NoError {
		// Received an error from the agent
		fmt.Println(pdu.ErrorStatus(), pdu.ErrorIndex())
	}

	// get VarBind list
	fmt.Println(pdu.VarBinds())

	// select a VarBind
	fmt.Println(pdu.VarBinds().MatchOid(oids[0]))
}
Esempio n. 4
0
func TestMessageProcessingV1(t *testing.T) {
	snmp, _ := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:   snmpgo.V2c,
		Community: "public",
	})
	mp := snmpgo.NewMessageProcessing(snmpgo.V2c)
	pdu := snmpgo.NewPdu(snmpgo.V2c, snmpgo.GetRequest)

	msg, err := mp.PrepareOutgoingMessage(snmp, pdu)
	if err != nil {
		t.Errorf("PrepareOutgoingMessage() - has error %v", err)
	}
	if len(msg.PduBytes()) == 0 {
		t.Error("PrepareOutgoingMessage() - pdu bytes")
	}
	if pdu.RequestId() == 0 {
		t.Error("PrepareOutgoingMessage() - request id")
	}
	requestId := pdu.RequestId()

	_, err = mp.PrepareDataElements(snmp, msg, []byte{0x00, 0x00})
	if err == nil {
		t.Error("PrepareDataElements() - message unmarshal error")
	}

	b, _ := msg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - pdu type check")
	}

	pdu = snmpgo.NewPdu(snmpgo.V2c, snmpgo.GetResponse)
	rmsg := snmpgo.ToMessageV1(snmpgo.NewMessage(snmpgo.V1, pdu))
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - version check")
	}

	pdu.SetRequestId(requestId)
	pduBytes, _ := pdu.Marshal()
	rmsg = snmpgo.ToMessageV1(snmpgo.NewMessage(snmpgo.V2c, pdu))
	rmsg.Community = []byte("public")
	rmsg.SetPduBytes(pduBytes)
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err != nil {
		t.Errorf("PrepareDataElements() - has error %v", err)
	}
}
Esempio n. 5
0
func main() {
	// `snmpgo.SNMP.Open` function execute the EngineID Discovery when you use V3.
	// Specify the Agent's EngineID to `snmpgo.SNMPArguments.SecurityEngineId` parameter,
	// if you want to suppress this behavior.
	snmp, err := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:          snmpgo.V3,
		Address:          "127.0.0.1:162",
		Retries:          1,
		UserName:         "******",
		SecurityLevel:    snmpgo.AuthPriv,
		AuthPassword:     "******",
		AuthProtocol:     snmpgo.Sha,
		PrivPassword:     "******",
		PrivProtocol:     snmpgo.Aes,
		SecurityEngineId: "8000000004736e6d70676f",
	})
	if err != nil {
		// Failed to create snmpgo.SNMP object
		fmt.Println(err)
		return
	}

	// Build VarBind list
	var varBinds snmpgo.VarBinds
	varBinds = append(varBinds, snmpgo.NewVarBind(snmpgo.OidSysUpTime, snmpgo.NewTimeTicks(1000)))

	oid, _ := snmpgo.NewOid("1.3.6.1.6.3.1.1.5.3")
	varBinds = append(varBinds, snmpgo.NewVarBind(snmpgo.OidSnmpTrap, oid))

	oid, _ = snmpgo.NewOid("1.3.6.1.2.1.2.2.1.1.2")
	varBinds = append(varBinds, snmpgo.NewVarBind(oid, snmpgo.NewInteger(2)))

	oid, _ = snmpgo.NewOid("1.3.6.1.2.1.31.1.1.1.1.2")
	varBinds = append(varBinds, snmpgo.NewVarBind(oid, snmpgo.NewOctetString([]byte("eth0"))))

	if err = snmp.Open(); err != nil {
		// Failed to open connection
		fmt.Println(err)
		return
	}
	defer snmp.Close()

	if err = snmp.V2Trap(varBinds); err != nil {
		// Failed to request
		fmt.Println(err)
		return
	}
}
Esempio n. 6
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func main() {
	snmp, err := snmpgo.NewSNMP(snmpgo.Arguments{
		Version:   snmpgo.V2c,
		Address:   "127.0.0.1:161",
		Retries:   1,
		Community: "public",
	})
	if err != nil {
		// Failed to create snmpgo.SNMP object
		fmt.Println(err)
		return
	}

	oids, err := snmpgo.NewOids([]string{
		"1.3.6.1.2.1.1.1.0",
		"1.3.6.1.2.1.1.2.0",
		"1.3.6.1.2.1.1.3.0",
	})
	if err != nil {
		// Failed to parse Oids
		fmt.Println(err)
		return
	}

	if err = snmp.Open(); err != nil {
		// Failed to open connection
		fmt.Println(err)
		return
	}
	defer snmp.Close()

	pdu, err := snmp.GetRequest(oids)
	if err != nil {
		// Failed to request
		fmt.Println(err)
		return
	}
	if pdu.ErrorStatus() != snmpgo.NoError {
		// Received an error from the agent
		fmt.Println(pdu.ErrorStatus(), pdu.ErrorIndex())
	}

	// get VariableBinding list
	fmt.Println(pdu.VariableBindings())

	// select a VariableBinding
	fmt.Println(pdu.VariableBindings().MatchOid(oids[0]))
}
Esempio n. 7
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func main() {
	snmp, err := snmpgo.NewSNMP(snmpgo.Arguments{
		Version:   snmpgo.V2c,
		Address:   "127.0.0.1:162",
		Retries:   1,
		Community: "public",
	})
	if err != nil {
		// Failed to create snmpgo.SNMP object
		fmt.Println(err)
		return
	}

	// Build VariableBinding list
	var VariableBindings snmpgo.VariableBindings
	VariableBindings = append(VariableBindings, snmpgo.NewVarBind(snmpgo.OidSysUpTime, snmpgo.NewTimeTicks(1000)))

	oid, _ := snmpgo.ParseOidFromString("1.3.6.1.6.3.1.1.5.3")
	VariableBindings = append(VariableBindings, snmpgo.NewVarBind(snmpgo.OidSnmpTrap, oid))

	oid, _ = snmpgo.ParseOidFromString("1.3.6.1.2.1.2.2.1.1.2")
	VariableBindings = append(VariableBindings, snmpgo.NewVarBind(oid, snmpgo.NewInteger(2)))

	oid, _ = snmpgo.ParseOidFromString("1.3.6.1.2.1.31.1.1.1.1.2")
	VariableBindings = append(VariableBindings, snmpgo.NewVarBind(oid, snmpgo.NewOctetString([]byte("eth0"))))

	if err = snmp.Open(); err != nil {
		// Failed to open connection
		fmt.Println(err)
		return
	}
	defer snmp.Close()

	if err = snmp.V2Trap(VariableBindings); err != nil {
		// Failed to request
		fmt.Println(err)
		return
	}
}
Esempio n. 8
0
func main() {
	snmpArgs, cmdArgs := parseArgs()
	if len(cmdArgs) < 2 {
		usage("required AGENT and OID", 2)
	}

	oids, err := snmpgo.NewOids(cmdArgs[1:])
	if err != nil {
		usage(err.Error(), 2)
	}

	snmp, err := snmpgo.NewSNMP(*snmpArgs)
	if err != nil {
		usage(err.Error(), 2)
	}

	if err = snmp.Open(); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	defer snmp.Close()

	pdu, err := snmp.GetBulkWalk(oids, nonRepeaters, maxRepetitions)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}

	if pdu.ErrorStatus() != snmpgo.NoError {
		fmt.Fprintln(os.Stderr, pdu.ErrorStatus(), pdu.ErrorIndex())
		os.Exit(1)
	}

	for _, val := range pdu.VariableBindings() {
		fmt.Printf("%s = %s: %s\n", val.Oid, val.Variable.Type(), val.Variable)
	}
}
Esempio n. 9
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func TestSNMP(t *testing.T) {
	snmp, _ := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:       snmpgo.V3,
		UserName:      "******",
		SecurityLevel: snmpgo.AuthPriv,
		AuthPassword:  "******",
		AuthProtocol:  snmpgo.Md5,
		PrivPassword:  "******",
		PrivProtocol:  snmpgo.Des,
	})

	pdu := snmpgo.NewPdu(snmpgo.V3, snmpgo.Report)
	err := snmpgo.SnmpCheckPdu(snmp, pdu)
	if err != nil {
		t.Errorf("checkPdu() - has error %v", err)
	}

	oids, _ := snmpgo.NewOids([]string{"1.3.6.1.6.3.11.2.1.1.0"})
	pdu = snmpgo.NewPduWithOids(snmpgo.V3, snmpgo.Report, oids)
	err = snmpgo.SnmpCheckPdu(snmp, pdu)
	if err == nil {
		t.Error("checkPdu() - report oid")
	}
}
Esempio n. 10
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func TestCommunity(t *testing.T) {
	expCom := "public"
	snmp, _ := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:   snmpgo.V2c,
		Community: expCom,
	})
	sec := snmpgo.NewCommunity()
	pdu := snmpgo.NewPdu(snmpgo.V2c, snmpgo.GetRequest)
	smsg := snmpgo.ToMessageV1(snmpgo.NewMessage(snmpgo.V2c, pdu))

	err := sec.GenerateRequestMessage(snmp, smsg)
	if err != nil {
		t.Errorf("GenerateRequestMessage() - has error %v", err)
	}
	if !bytes.Equal(smsg.Community, []byte(expCom)) {
		t.Errorf("GenerateRequestMessage() - expected [%s], actual [%s]", expCom, smsg.Community)
	}
	if len(smsg.PduBytes()) == 0 {
		t.Error("GenerateRequestMessage() - pdu marshal")
	}

	pdu = snmpgo.NewPdu(snmpgo.V2c, snmpgo.GetResponse)
	rmsg := snmpgo.ToMessageV1(snmpgo.NewMessage(snmpgo.V2c, pdu))

	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - community check")
	}

	rmsg.Community = []byte(expCom)
	rmsg.SetPduBytes(smsg.PduBytes())
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err != nil {
		t.Errorf("ProcessIncomingMessage() - has error %v", err)
	}
}
Esempio n. 11
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func TestMessageProcessingV3(t *testing.T) {
	snmp, _ := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:       snmpgo.V3,
		UserName:      "******",
		SecurityLevel: snmpgo.AuthPriv,
		AuthPassword:  "******",
		AuthProtocol:  snmpgo.Md5,
		PrivPassword:  "******",
		PrivProtocol:  snmpgo.Des,
	})
	mp := snmpgo.NewMessageProcessing(snmpgo.V3)
	usm := snmpgo.ToUsm(mp.Security())
	usm.AuthKey = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
	usm.PrivKey = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
	pdu := snmpgo.NewPdu(snmpgo.V3, snmpgo.GetRequest)

	msg, err := mp.PrepareOutgoingMessage(snmp, pdu)
	if err != nil {
		t.Errorf("PrepareOutgoingMessage() - has error %v", err)
	}
	if len(msg.PduBytes()) == 0 {
		t.Error("PrepareOutgoingMessage() - pdu bytes")
	}
	if pdu.RequestId() == 0 {
		t.Error("PrepareOutgoingMessage() - request id")
	}
	msgv3 := snmpgo.ToMessageV3(msg)
	if msgv3.MessageId == 0 {
		t.Error("PrepareOutgoingMessage() - message id")
	}
	if !msgv3.Reportable() || !msgv3.Authentication() || !msgv3.Privacy() {
		t.Error("PrepareOutgoingMessage() - security flag")
	}
	msgv3.SetAuthentication(false)
	msgv3.SetPrivacy(false)
	msgv3.AuthEngineId = []byte{0, 0, 0, 0, 0}
	requestId := pdu.RequestId()
	messageId := msgv3.MessageId

	_, err = mp.PrepareDataElements(snmp, msg, []byte{0x00, 0x00})
	if err == nil {
		t.Error("PrepareDataElements() - message unmarshal error")
	}

	b, _ := msg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - pdu type check")
	}

	pdu = snmpgo.NewPdu(snmpgo.V3, snmpgo.GetResponse)
	rmsg := snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - message id check")
	}

	rmsg = snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	rmsg.AuthEngineId = []byte{0, 0, 0, 0, 0}
	rmsg.MessageId = messageId
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - security model check")
	}

	pdu.(*snmpgo.ScopedPdu).ContextEngineId = rmsg.AuthEngineId
	pduBytes, _ := pdu.Marshal()
	rmsg.SetPduBytes(pduBytes)
	rmsg.SecurityModel = 3
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err == nil {
		t.Error("PrepareDataElements() - request id check")
	}

	pdu.SetRequestId(requestId)
	pduBytes, _ = pdu.Marshal()
	rmsg.SetPduBytes(pduBytes)
	b, _ = rmsg.Marshal()
	_, err = mp.PrepareDataElements(snmp, msg, b)
	if err != nil {
		t.Errorf("PrepareDataElements() - has error %v", err)
	}
}
Esempio n. 12
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func main() {
	snmpArgs, cmdArgs := parseArgs()
	if l := len(cmdArgs); l < 1 {
		usage("required AGENT", 2)
	} else {
		if l > 1 {
			if num, err := strconv.Atoi(cmdArgs[1]); err != nil || num < 1 {
				usage(fmt.Sprintf("Illegal delay, value `%s`", cmdArgs[1]), 2)
			} else {
				delay = time.Duration(num) * time.Second
			}
		}
		if l > 2 {
			if num, err := strconv.Atoi(cmdArgs[2]); err != nil || num < 1 {
				usage(fmt.Sprintf("Illegal iterations, value `%s`", cmdArgs[2]), 2)
			} else {
				iterations = num
			}
		}
	}

	snmp, err := snmpgo.NewSNMP(*snmpArgs)
	if err != nil {
		usage(err.Error(), 2)
	}

	if err = snmp.Open(); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	defer snmp.Close()

	info, err := getIfInfo(snmp)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}

	if !noHeader {
		printHeader(info)
	}

	start := time.Now()
	for i := 0; ; i++ {
		if err := getIfTraffic(snmp, info); err != nil {
			fmt.Fprintln(os.Stderr, err)
			os.Exit(1)
		}

		printTraffic(info)

		if iterations > 0 && i >= iterations {
			break
		}

		start = start.Add(delay)
		if d := start.Sub(info.Time); d > 0 {
			time.Sleep(d)
		}
	}
}
Esempio n. 13
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func TestUsm(t *testing.T) {
	expUser := []byte("myUser")
	expEngId := []byte{0x80, 0x00, 0x00, 0x00, 0x01}
	expCtxId := []byte{0x80, 0x00, 0x00, 0x00, 0x05}
	expCtxName := "myName"
	snmp, _ := snmpgo.NewSNMP(snmpgo.SNMPArguments{
		Version:         snmpgo.V3,
		UserName:        string(expUser),
		SecurityLevel:   snmpgo.AuthPriv,
		AuthPassword:    "******",
		AuthProtocol:    snmpgo.Md5,
		PrivPassword:    "******",
		PrivProtocol:    snmpgo.Des,
		ContextEngineId: hex.EncodeToString(expCtxId),
		ContextName:     expCtxName,
	})
	sec := snmpgo.NewUsm()
	pdu := snmpgo.NewPdu(snmpgo.V3, snmpgo.GetRequest)
	spdu := pdu.(*snmpgo.ScopedPdu)
	smsg := snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	smsg.SetAuthentication(false)
	smsg.SetPrivacy(false)

	// Discovery
	err := sec.GenerateRequestMessage(snmp, smsg)
	if err != nil {
		t.Errorf("GenerateRequestMessage() - has error %v", err)
	}
	if !bytes.Equal(spdu.ContextEngineId, expCtxId) {
		t.Errorf("GenerateRequestMessage() - expected [%s], actual [%s]",
			expCtxId, spdu.ContextEngineId)
	}
	if string(spdu.ContextName) != expCtxName {
		t.Errorf("GenerateRequestMessage() - expected [%s], actual [%s]",
			expCtxName, string(spdu.ContextName))
	}
	if len(smsg.PduBytes()) == 0 {
		t.Error("GenerateRequestMessage() - pdu marshal")
	}

	pdu = snmpgo.NewPdu(snmpgo.V3, snmpgo.Report)
	rmsg := snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	rmsg.SetPduBytes(smsg.PduBytes())
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - engineId check")
	}

	rmsg.AuthEngineId = expEngId
	rmsg.AuthEngineBoots = -1
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - boots check")
	}

	rmsg.AuthEngineBoots = 1
	rmsg.AuthEngineTime = -1
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - time check")
	}

	rmsg.AuthEngineTime = 1
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err != nil {
		t.Errorf("ProcessIncomingMessage() - has error %v", err)
	}
	if !bytes.Equal(sec.AuthEngineId, expEngId) {
		t.Errorf("ProcessIncomingMessage() - expected [%s], actual [%s]",
			sec.AuthEngineId, expEngId)
	}
	if len(sec.AuthKey) == 0 {
		t.Error("ProcessIncomingMessage() - authKey")
	}
	if len(sec.PrivKey) == 0 {
		t.Error("ProcessIncomingMessage() - privKey")
	}

	// Synchronize
	smsg.SetAuthentication(true)
	smsg.SetPrivacy(true)

	err = sec.GenerateRequestMessage(snmp, smsg)
	if err != nil {
		t.Errorf("GenerateRequestMessage() - has error %v", err)
	}
	if !bytes.Equal(smsg.UserName, expUser) {
		t.Errorf("GenerateRequestMessage() - expected [%s], actual [%s]",
			expUser, smsg.UserName)
	}
	if !bytes.Equal(smsg.AuthEngineId, expEngId) {
		t.Errorf("GenerateRequestMessage() - expected [%s], actual [%s]",
			expEngId, smsg.AuthEngineId)
	}
	if len(smsg.PrivParameter) == 0 {
		t.Error("GenerateRequestMessage() - privParameter")
	}
	if len(smsg.AuthParameter) == 0 {
		t.Error("GenerateRequestMessage() - authParameter")
	}

	pdu = snmpgo.NewPdu(snmpgo.V3, snmpgo.Report)
	rmsg = snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	rmsg.SetAuthentication(true)
	rmsg.SetPrivacy(true)
	rmsg.SetPduBytes(smsg.PduBytes())
	rmsg.AuthEngineId = []byte("foobar")
	rmsg.AuthEngineBoots = smsg.AuthEngineBoots
	rmsg.AuthEngineTime = smsg.AuthEngineTime
	rmsg.PrivParameter = smsg.PrivParameter
	rmsg.AuthParameter = smsg.AuthParameter

	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - userName check")
	}

	rmsg.UserName = expUser
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - authEngine check")
	}

	rmsg.AuthEngineId = expEngId
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err != nil {
		t.Errorf("ProcessIncomingMessage() - has error %v", err)
	}
	if sec.AuthEngineBoots != rmsg.AuthEngineBoots {
		t.Error("ProcessIncomingMessage() - engineBoots")
	}
	if sec.AuthEngineTime != rmsg.AuthEngineTime {
		t.Error("ProcessIncomingMessage() - engineTime")
	}

	// Request
	sec.AuthEngineBoots = 1
	sec.AuthEngineTime = 1

	err = sec.GenerateRequestMessage(snmp, smsg)
	if err != nil {
		t.Errorf("GenerateRequestMessage() - has error %v", err)
	}
	if smsg.AuthEngineBoots != sec.AuthEngineBoots {
		t.Errorf("GenerateRequestMessage() - expected [%d], actual [%d]",
			sec.AuthEngineBoots, smsg.AuthEngineBoots)
	}
	if smsg.AuthEngineTime != sec.AuthEngineTime {
		t.Errorf("GenerateRequestMessage() - expected [%d], actual [%d]",
			sec.AuthEngineTime, smsg.AuthEngineTime)
	}

	pdu = snmpgo.NewPdu(snmpgo.V3, snmpgo.GetResponse)
	spdu = pdu.(*snmpgo.ScopedPdu)
	rmsg = snmpgo.ToMessageV3(snmpgo.NewMessage(snmpgo.V3, pdu))
	rmsg.AuthEngineId = expEngId
	rmsg.AuthEngineBoots = smsg.AuthEngineBoots
	rmsg.AuthEngineTime = smsg.AuthEngineTime
	rmsg.UserName = expUser

	// set PduBytes with GetResponse
	b, _ := spdu.Marshal()
	rmsg.SetPduBytes(b)

	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - contextEngineId check")
	}

	// set PduBytes with ContextEngineId
	spdu.ContextEngineId = expCtxId
	b, _ = spdu.Marshal()
	rmsg.SetPduBytes(b)
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - contextName check")
	}

	// set PduBytes with ContextName
	spdu.ContextName = []byte(expCtxName)
	b, _ = spdu.Marshal()
	rmsg.SetPduBytes(b)
	err = sec.ProcessIncomingMessage(snmp, smsg, rmsg)
	if err == nil {
		t.Error("ProcessIncomingMessage() - response authenticate check")
	}
}