func buildVarBinds(cmdArgs []string) (snmpgo.VariableBindings, error) {
var VariableBindings snmpgo.VariableBindings
uptime := snmpgo.NewTimeTicks(getUptime(cmdArgs[1]))
VariableBindings = append(VariableBindings, snmpgo.NewVarBind(snmpgo.OidSysUpTime, uptime))
oid, err := snmpgo.ParseOidFromString(cmdArgs[2])
if err != nil {
return nil, err
}
VariableBindings = append(VariableBindings, snmpgo.NewVarBind(snmpgo.OidSnmpTrap, oid))
for i := 3; i < len(cmdArgs); i += 3 {
oid, err := snmpgo.ParseOidFromString(cmdArgs[i])
if err != nil {
return nil, err
}
val, err := buildVariable(cmdArgs[i+1], cmdArgs[i+2])
if err != nil {
return nil, err
}
VariableBindings = append(VariableBindings, snmpgo.NewVarBind(oid, val))
}
return VariableBindings, nil
}
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
}
}
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
}
}
func TestVarBinds(t *testing.T) {
var v snmpgo.VarBinds
oid, _ := snmpgo.NewOid("1.3.6.1.2.1.1.1.0")
v = append(v, snmpgo.NewVarBind(oid, snmpgo.NewOctetString([]byte("MyHost"))))
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.2.0")
v = append(v, snmpgo.NewVarBind(oid, snmpgo.NewNull()))
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.3.0")
v = append(v, snmpgo.NewVarBind(oid, snmpgo.NewTimeTicks(uint32(11111))))
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.1.0")
varBind := v.MatchOid(oid)
if varBind == nil || !varBind.Oid.Equal(oid) {
t.Errorf("Failed to MatchOid()")
}
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.1.1")
varBind = v.MatchOid(oid)
if varBind != nil {
t.Errorf("Failed to MatchOid() - no match")
}
varBind = v.MatchOid(nil)
if varBind != nil {
t.Errorf("Failed to MatchOid() - nil")
}
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1")
varBinds := v.MatchBaseOids(oid)
if len(varBinds) != 3 {
t.Errorf("Failed to MatchBaseOids()")
}
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.1.0")
varBinds = v.MatchBaseOids(oid)
if len(varBinds) != 1 || !varBinds[0].Oid.Equal(oid) {
t.Errorf("Failed to MatchBaseOids() - one")
}
oid, _ = snmpgo.NewOid("1.3.6.1.2.1.1.1.1")
varBinds = v.MatchBaseOids(oid)
if len(varBinds) != 0 {
t.Errorf("Failed to MatchBaseOids() - no match")
}
varBinds = v.MatchBaseOids(nil)
if len(varBinds) != 0 {
t.Errorf("Failed to MatchBaseOids() - nil")
}
var w snmpgo.VarBinds
for _, o := range []string{
"1.3.6.1.2.1.1.2.0",
"1.3.6.1.2.1.1.1.0",
"1.3.6.1.2.1.1.3.0",
"1.3.6.1.2.1.1",
"1.3.6.1.2.1.1.1.0",
} {
oid, _ = snmpgo.NewOid(o)
w = append(w, snmpgo.NewVarBind(oid, snmpgo.NewNull()))
}
expOids, _ := snmpgo.NewOids([]string{
"1.3.6.1.2.1.1",
"1.3.6.1.2.1.1.1.0",
"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",
})
w = w.Sort()
if len(expOids) != len(w) {
t.Errorf("Sort() - expected [%d], actual [%d]", len(expOids), len(w))
}
for i, o := range expOids {
if !o.Equal(w[i].Oid) {
t.Errorf("Sort() - expected [%s], actual [%s]", o, w[i].Oid)
}
}
expOids, _ = snmpgo.NewOids([]string{
"1.3.6.1.2.1.1",
"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",
})
w = w.Sort().Uniq()
if len(expOids) != len(w) {
t.Errorf("Uniq() - expected [%d], actual [%d]", len(expOids), len(w))
}
for i, o := range expOids {
if !o.Equal(w[i].Oid) {
t.Errorf("Uniq() - expected [%s], actual [%s]", o, w[i].Oid)
}
}
}