func main() {
// Default is a pointer to a GoSNMP struct that contains sensible defaults
// eg port 161, community public, etc
g.Default.Target = "192.168.1.10"
err := g.Default.Connect()
if err != nil {
log.Fatalf("Connect() err: %v", err)
}
defer g.Default.Conn.Close()
oids := []string{"1.3.6.1.2.1.1.4.0", "1.3.6.1.2.1.1.7.0"}
result, err2 := g.Default.Get(oids) // Get() accepts up to g.MAX_OIDS
if err2 != nil {
log.Fatalf("Get() err: %v", err2)
}
for i, variable := range result.Variables {
fmt.Printf("%d: oid: %s ", i, variable.Name)
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case g.OctetString:
fmt.Printf("string: %s\n", variable.Value.(string))
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
fmt.Printf("number: %d\n", g.ToBigInt(variable.Value))
}
}
}
func printValue(pdu gosnmp.SnmpPDU) error {
fmt.Printf("%s = ", pdu.Name)
switch pdu.Type {
case gosnmp.OctetString:
fmt.Printf("STRING: %s\n", pdu.Value.(string))
default:
fmt.Printf("TYPE %d: %d\n", pdu.Type, gosnmp.ToBigInt(pdu.Value))
}
return nil
}
func printValue(pdu gosnmp.SnmpPDU) error {
fmt.Printf("%s = ", pdu.Name)
dec := mahonia.NewDecoder("gbk")
switch pdu.Type {
case gosnmp.OctetString:
b := pdu.Value.([]byte)
_, date, _ := dec.Translate(b, true)
fmt.Printf("STRING: %s\n", string(date))
case gosnmp.TimeTicks:
b := gosnmp.ToBigInt(pdu.Value)
t, _ := strconv.Atoi(fmt.Sprintf("%d", b))
str_time := time.Unix(int64(t), 0).Format("Mon Jan 2 15:04:05.000 2006 +0800")
fmt.Printf("TimeTicks: %d %s\n", b, str_time)
case gosnmp.IPAddress:
b := pdu.Value.(string)
fmt.Printf("IpAddress: %s\n", string(b))
default:
fmt.Printf("TYPE %d: %d\n", pdu.Type, gosnmp.ToBigInt(pdu.Value))
}
return nil
}
func getData(h host, oids []string, c chan bool) {
fmt.Printf("This is getData, polling device %s. Oids are:\n", h.Addr)
//spew.Dump(oids)
var result []g.SnmpPDU
result = make([]g.SnmpPDU, 1)
g.Default.Target = h.Addr
g.Default.Version = 0x1
g.Default.Timeout = time.Duration(2) * time.Second
fmt.Printf("DEBUG: community is %s\n", g.Default.Community)
fmt.Printf("DEBUG: version is %v\n", g.Default.Version)
err := g.Default.Connect()
if err != nil {
log.Fatalf("gosnmp.Connect err: %v", err)
fmt.Printf("gosnmp.Connect err: %v", err)
}
runtime.Gosched()
defer g.Default.Conn.Close()
for _, o := range oids {
fmt.Printf("About to BulkWalkAll %s on host %s\n", o, h.Addr)
result, err = g.Default.BulkWalkAll(o)
if err != nil {
log.Fatalf("gosnmp.BulkWalkAll failed: %v", err)
fmt.Printf("gosnmp.BulkWalkAll failed: %v", err)
} else {
//fmt.Printf("Results for oid ", o)
//spew.Dump(result)
for _, r := range result {
v := g.ToBigInt(r.Value)
fmt.Println("oid ", r.Name, ", value ", v)
ndxs := strings.Split(r.Name[len(o)+1:], ",")
ndxCount := 0
tags := map[string]string{
"host": h.Name,
"site": h.Site,
"name": oSlice[o].Name,
}
for i := range ndxs {
tagName = fmt.Sprintf("ndx%d", ndxCount)
ndxCount++
tags[tagname] = i
}
fields := map[string]interface{}{
"value": v,
}
}
}
//runtime.Gosched()
//c <- true
}
}
func main() {
// get Target and Port from environment
envTarget := "192.168.1.105"
envPort := "161"
if len(envTarget) <= 0 {
log.Fatalf("environment variable not set: GOSNMP_TARGET")
}
if len(envPort) <= 0 {
log.Fatalf("environment variable not set: GOSNMP_PORT")
}
port, _ := strconv.ParseUint(envPort, 10, 16)
// Build our own GoSNMP struct, rather than using g.Default.
// Do verbose logging of packets.
params := &g.GoSNMP{
Target: envTarget,
Port: uint16(port),
Community: "public",
Version: g.Version2c,
Timeout: time.Duration(2) * time.Second,
Logger: log.New(os.Stdout, "", 0),
}
err := params.Connect()
if err != nil {
log.Fatalf("Connect() err: %v", err)
}
defer params.Conn.Close()
oids := []string{"1.3.6.1.2.1.1.5.0"}
result, err2 := params.Get(oids) // Get() accepts up to g.MAX_OIDS
if err2 != nil {
log.Fatalf("Get() err: %v", err2)
}
for i, variable := range result.Variables {
fmt.Printf("%d: oid: %s ", i, variable.Name)
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case g.OctetString:
fmt.Printf("string: %s\n", string(variable.Value.([]byte)))
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
fmt.Printf("default: %v\n", g.ToBigInt(variable.Value))
}
}
}
func printValue(pdu gosnmp.SnmpPDU) error {
fmt.Printf("%s = ", pdu.Name)
dec := mahonia.NewDecoder("gbk")
switch pdu.Type {
case gosnmp.OctetString:
b := pdu.Value.([]byte)
_, date, _ := dec.Translate(b, true)
fmt.Printf("STRING: %s\n", string(date))
case gosnmp.IPAddress:
b := pdu.Value.(string)
fmt.Printf("IpAddress: %s\n", string(b))
default:
fmt.Printf("TYPE %d: %d\n", pdu.Type, gosnmp.ToBigInt(pdu.Value))
}
return nil
}
func pduToSample(indexOids []int, pdu *gosnmp.SnmpPDU, metric *Metric, oidToPdu map[string]gosnmp.SnmpPDU) prometheus.Metric {
// The part of the OID that is the indexes.
labels := indexesToLabels(indexOids, metric, oidToPdu)
labelnames := make([]string, 0, len(labels))
labelvalues := make([]string, 0, len(labels))
for k, v := range labels {
labelnames = append(labelnames, k)
labelvalues = append(labelvalues, v)
}
return prometheus.MustNewConstMetric(prometheus.NewDesc(metric.Name, "", labelnames, nil),
prometheus.UntypedValue,
float64(gosnmp.ToBigInt(pdu.Value).Int64()),
labelvalues...,
)
}
func main() {
// build our own GoSNMP struct, rather than using g.Default
params := &g.GoSNMP{
Target: "192.168.91.20",
Port: 161,
Version: g.Version3,
Timeout: time.Duration(30) * time.Second,
SecurityModel: g.UserSecurityModel,
MsgFlags: g.AuthPriv,
SecurityParameters: &g.UsmSecurityParameters{UserName: "******",
AuthenticationProtocol: g.SHA,
AuthenticationPassphrase: "password",
PrivacyProtocol: g.DES,
PrivacyPassphrase: "password",
},
}
err := params.Connect()
if err != nil {
log.Fatalf("Connect() err: %v", err)
}
defer params.Conn.Close()
oids := []string{"1.3.6.1.2.1.1.4.0", "1.3.6.1.2.1.1.7.0"}
result, err2 := params.Get(oids) // Get() accepts up to g.MAX_OIDS
if err2 != nil {
log.Fatalf("Get() err: %v", err2)
}
for i, variable := range result.Variables {
fmt.Printf("%d: oid: %s ", i, variable.Name)
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case g.OctetString:
fmt.Printf("string: %s\n", string(variable.Value.([]byte)))
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
fmt.Printf("number: %d\n", g.ToBigInt(variable.Value))
}
}
}
func getTable(target *gosnmp.GoSNMP, oid string) {
results, err := gosnmp.Default.BulkWalkAll(oid)
if err != nil {
log.Fatalf("Get() err: %v", err)
}
for _, variable := range results {
fmt.Printf("oid: %s ", variable.Name[len(oid)+1:])
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case gosnmp.OctetString:
fmt.Printf("string: %s\n", string(variable.Value.([]byte)))
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
fmt.Printf("number: %d\n", gosnmp.ToBigInt(variable.Value))
}
}
}
func main() {
// build our own GoSNMP struct, rather than using g.Default
params := &g.GoSNMP{
Target: "192.168.1.10",
Port: 161,
Community: "public",
Version: g.Version2c,
Timeout: time.Duration(2) * time.Second,
}
err := params.Connect()
if err != nil {
log.Fatalf("Connect() err: %v", err)
}
defer params.Conn.Close()
oids := []string{"1.3.6.1.2.1.1.4.0", "1.3.6.1.2.1.1.7.0"}
result, err2 := params.Get(oids) // Get() accepts up to g.MAX_OIDS
if err2 != nil {
log.Fatalf("Get() err: %v", err2)
}
for i, variable := range result.Variables {
fmt.Printf("%d: oid: %s ", i, variable.Name)
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case g.OctetString:
fmt.Printf("string: %s\n", string(variable.Value.([]byte)))
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
fmt.Printf("number: %d\n", g.ToBigInt(variable.Value))
}
}
}