How to use the net-snmp.ObjectType function in net-snmp
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netdata / netdata / collectors / node.d.plugin / snmp / snmp.node.js View on Github 
service.error('OID ' + varbinds[i].oid + ' gave error: ' + net_snmp.varbindError(varbinds[i]));
value = null;
failed++;
}
else {
// test fom Counter64
// varbinds[i].type = net_snmp.ObjectType.Counter64;
// varbinds[i].value = new Buffer([0x34, 0x49, 0x2e, 0xdc, 0xd1]);
switch(varbinds[i].type) {
case net_snmp.ObjectType.OctetString:
if (service.snmp_oids_index[varbinds[i].oid].type !== 'title' && service.snmp_oids_index[varbinds[i].oid].type !== 'name') {
// parse floating point values, exposed as strings
value = parseFloat(varbinds[i].value) * 1000;
if (__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as float in string)");
}
else {
// just use the string
value = varbinds[i].value;
if (__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as string)");
}
break;
case net_snmp.ObjectType.Counter64:
// copy the buffer
value = '0x' + varbinds[i].value.toString('hex');
if(__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as buffer)");
break;
case net_snmp.ObjectType.Integer:
case net_snmp.ObjectType.Counter:if (__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as string)");
}
break;
case net_snmp.ObjectType.Counter64:
// copy the buffer
value = '0x' + varbinds[i].value.toString('hex');
if(__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as buffer)");
break;
case net_snmp.ObjectType.Integer:
case net_snmp.ObjectType.Counter:
case net_snmp.ObjectType.Gauge:
default:
value = varbinds[i].value;
if(__DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + ", ObjectType " + net_snmp.ObjectType[varbinds[i].type] + " (" + netdata.stringify(varbinds[i].type) + "), typeof(" + typeof(varbinds[i].value) + "), in JSON: " + netdata.stringify(varbinds[i].value) + ", value = " + value.toString() + " (parsed as number)");
break;
}
ok++;
}
if(value !== null) {
switch(service.snmp_oids_index[varbinds[i].oid].type) {
case 'title': service.snmp_oids_index[varbinds[i].oid].link.title += ' ' + value; break;
case 'name' : service.snmp_oids_index[varbinds[i].oid].link.name = value.toString().replace(/\W/g, '_'); break;
case 'value': service.snmp_oids_index[varbinds[i].oid].link.value = value; break;
}
}
}
if(__DEBUG === true)getSession(host, community, node.version, node.timeout).get(oids.split(","), function (error, varbinds) {
if (error) {
node.error(error.toString(), msg);
}
else {
for (var i = 0; i < varbinds.length; i++) {
if (snmp.isVarbindError(varbinds[i])) {
node.error(snmp.varbindError(varbinds[i]), msg);
}
else {
if (varbinds[i].type == 4) { varbinds[i].value = varbinds[i].value.toString(); }
varbinds[i].tstr = snmp.ObjectType[varbinds[i].type];
//node.log(varbinds[i].oid + "|" + varbinds[i].tstr + "|" + varbinds[i].value);
}
}
msg.oid = oids;
msg.payload = varbinds;
node.send(msg);
}
});
}net-snmp
JavaScript implementation of the Simple Network Management Protocol (SNMP)
