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)
}
}
func TestMessageV1(t *testing.T) {
pdu := snmpgo.NewPdu(snmpgo.V2c, snmpgo.GetRequest)
msg := snmpgo.ToMessageV1(snmpgo.NewMessage(snmpgo.V2c, pdu))
b, _ := pdu.Marshal()
msg.SetPduBytes(b)
msg.Community = []byte("MyCommunity")
expBuf := []byte{
0x30, 0x1d, 0x02, 0x01, 0x01, 0x04, 0x0b, 0x4d, 0x79, 0x43, 0x6f,
0x6d, 0x6d, 0x75, 0x6e, 0x69, 0x74, 0x79, 0xa0, 0x0b, 0x02, 0x01,
0x00, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x30, 0x00,
}
buf, err := msg.Marshal()
if err != nil {
t.Fatal("Marshal() : %v", err)
}
if !bytes.Equal(expBuf, buf) {
t.Errorf("Marshal() - expected [%s], actual [%s]",
snmpgo.ToHexStr(expBuf, " "), snmpgo.ToHexStr(buf, " "))
}
expStr := `{"Version": "2c", "Community": "MyCommunity", ` +
`"Pdu": {"Type": "GetRequest", "RequestId": "0", "ErrorStatus": ` +
`"NoError", "ErrorIndex": "0", "VarBinds": []}}`
m := snmpgo.NewMessage(snmpgo.V2c, pdu)
rest, err := m.Unmarshal(buf)
if len(rest) != 0 || err != nil {
t.Errorf("Unmarshal() - len[%d] err[%v]", len(rest), err)
}
if expStr != m.String() {
t.Errorf("Unmarshal() - expected [%s], actual [%s]", expStr, m.String())
}
}
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)
}
}