'use strict';
-
+// netdata snmp module
// This program will connect to one or more SNMP Agents
+//
-// example configuration in /etc/netdata/snmp.conf
+// example configuration in /etc/netdata/node.d/snmp.conf
/*
{
- "enable_autodetect": false,
- "update_every": 5,
- "max_request_size": 50,
- "servers": [
- {
- "hostname": "10.11.12.8",
- "community": "public",
- "update_every": 10,
- "max_request_size": 50,
- "options": { "timeout": 10000 },
- "charts": {
- "snmp_switch.bandwidth_port1": {
- "title": "Switch Bandwidth for port 1",
- "units": "kilobits/s",
- "type": "area",
- "priority": 1,
- "dimensions": {
- "in": {
- "oid": ".1.3.6.1.2.1.2.2.1.10.1",
- "algorithm": "incremental",
- "multiplier": 8,
- "divisor": 1024
- },
- "out": {
- "oid": ".1.3.6.1.2.1.2.2.1.16.1",
- "algorithm": "incremental",
- "multiplier": -8,
- "divisor": 1024
- }
- }
- },
- "snmp_switch.bandwidth_port2": {
- "title": "Switch Bandwidth for port 2",
- "units": "kilobits/s",
- "type": "area",
- "priority": 1,
- "dimensions": {
- "in": {
- "oid": ".1.3.6.1.2.1.2.2.1.10.2",
- "algorithm": "incremental",
- "multiplier": 8,
- "divisor": 1024
- },
- "out": {
- "oid": ".1.3.6.1.2.1.2.2.1.16.2",
- "algorithm": "incremental",
- "multiplier": -8,
- "divisor": 1024
- }
- }
- }
- }
- }
- ]
+ "enable_autodetect": false,
+ "update_every": 5,
+ "max_request_size": 50,
+ "servers": [
+ {
+ "hostname": "10.11.12.8",
+ "community": "public",
+ "update_every": 10,
+ "max_request_size": 50,
+ "options": { "timeout": 10000 },
+ "charts": {
+ "snmp_switch.bandwidth_port1": {
+ "title": "Switch Bandwidth for port 1",
+ "units": "kilobits/s",
+ "type": "area",
+ "priority": 1,
+ "dimensions": {
+ "in": {
+ "oid": ".1.3.6.1.2.1.2.2.1.10.1",
+ "algorithm": "incremental",
+ "multiplier": 8,
+ "divisor": 1024,
+ "offset": 0
+ },
+ "out": {
+ "oid": ".1.3.6.1.2.1.2.2.1.16.1",
+ "algorithm": "incremental",
+ "multiplier": -8,
+ "divisor": 1024,
+ "offset": 0
+ }
+ }
+ },
+ "snmp_switch.bandwidth_port2": {
+ "title": "Switch Bandwidth for port 2",
+ "units": "kilobits/s",
+ "type": "area",
+ "priority": 1,
+ "dimensions": {
+ "in": {
+ "oid": ".1.3.6.1.2.1.2.2.1.10.2",
+ "algorithm": "incremental",
+ "multiplier": 8,
+ "divisor": 1024,
+ "offset": 0
+ },
+ "out": {
+ "oid": ".1.3.6.1.2.1.2.2.1.16.2",
+ "algorithm": "incremental",
+ "multiplier": -8,
+ "divisor": 1024,
+ "offset": 0
+ }
+ }
+ }
+ }
+ }
+ ]
}
*/
// so that 24 charts will be created.
/*
{
- "enable_autodetect": false,
- "update_every": 10,
- "max_request_size": 50,
- "servers": [
- {
- "hostname": "10.11.12.8",
- "community": "public",
- "update_every": 10,
- "max_request_size": 50,
- "options": { "timeout": 20000 },
- "charts": {
- "snmp_switch.bandwidth_port": {
- "title": "Switch Bandwidth for port ",
- "units": "kilobits/s",
- "type": "area",
- "priority": 1,
- "multiply_range": [ 1, 24 ],
- "dimensions": {
- "in": {
- "oid": ".1.3.6.1.2.1.2.2.1.10.",
- "algorithm": "incremental",
- "multiplier": 8,
- "divisor": 1024
- },
- "out": {
- "oid": ".1.3.6.1.2.1.2.2.1.16.",
- "algorithm": "incremental",
- "multiplier": -8,
- "divisor": 1024
- }
- }
- }
- }
- }
- ]
+ "enable_autodetect": false,
+ "update_every": 10,
+ "max_request_size": 50,
+ "servers": [
+ {
+ "hostname": "10.11.12.8",
+ "community": "public",
+ "update_every": 10,
+ "max_request_size": 50,
+ "options": { "timeout": 20000 },
+ "charts": {
+ "snmp_switch.bandwidth_port": {
+ "title": "Switch Bandwidth for port ",
+ "units": "kilobits/s",
+ "type": "area",
+ "priority": 1,
+ "multiply_range": [ 1, 24 ],
+ "dimensions": {
+ "in": {
+ "oid": ".1.3.6.1.2.1.2.2.1.10.",
+ "algorithm": "incremental",
+ "multiplier": 8,
+ "divisor": 1024,
+ "offset": 0
+ },
+ "out": {
+ "oid": ".1.3.6.1.2.1.2.2.1.16.",
+ "algorithm": "incremental",
+ "multiplier": -8,
+ "divisor": 1024,
+ "offset": 0
+ }
+ }
+ }
+ }
+ }
+ ]
}
*/
var extend = require('extend');
var netdata = require('netdata');
-if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
+if(netdata.options.DEBUG === true) netdata.debug('loaded', __filename, ' plugin');
netdata.processors.snmp = {
- name: 'snmp',
-
- fixoid: function(oid) {
- if(typeof oid !== 'string')
- return oid;
-
- if(oid.charAt(0) === '.')
- return oid.substring(1, oid.length);
-
- return oid;
- },
-
- prepare: function(service) {
- if(typeof service.snmp_oids === 'undefined' || service.snmp_oids === null || service.snmp_oids.length === 0) {
- // this is the first time we see this service
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': preparing ' + this.name + ' OIDs');
-
- // build an index of all OIDs
- service.snmp_oids_index = {};
- for(var c in service.request.charts) {
- // for each chart
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': indexing ' + this.name + ' chart: ' + c);
-
- if(typeof service.request.charts[c].titleoid !== 'undefined') {
- service.snmp_oids_index[this.fixoid(service.request.charts[c].titleoid)] = {
- type: 'title',
- link: service.request.charts[c]
- };
- }
-
- for(var d in service.request.charts[c].dimensions) {
- // for each dimension in the chart
-
- var oid = this.fixoid(service.request.charts[c].dimensions[d].oid);
- var oidname = this.fixoid(service.request.charts[c].dimensions[d].oidname);
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': indexing ' + this.name + ' chart: ' + c + ', dimension: ' + d + ', OID: ' + oid + ", OID name: " + oidname);
-
- // link it to the point we need to set the value to
- service.snmp_oids_index[oid] = {
- type: 'value',
- link: service.request.charts[c].dimensions[d]
- };
-
- if(typeof oidname !== 'undefined')
- service.snmp_oids_index[oidname] = {
- type: 'name',
- link: service.request.charts[c].dimensions[d]
- };
-
- // and set the value to null
- service.request.charts[c].dimensions[d].value = null;
- }
- }
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': indexed ' + this.name + ' OIDs: ' + netdata.stringify(service.snmp_oids_index));
-
- // now create the array of OIDs needed by net-snmp
- service.snmp_oids = new Array();
- for(var o in service.snmp_oids_index)
- service.snmp_oids.push(o);
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': final list of ' + this.name + ' OIDs: ' + netdata.stringify(service.snmp_oids));
-
- service.snmp_oids_cleaned = 0;
- }
- else if(service.snmp_oids_cleaned === 0) {
- service.snmp_oids_cleaned = 1;
-
- // the second time, keep only values
- service.snmp_oids = new Array();
- for(var o in service.snmp_oids_index)
- if(service.snmp_oids_index[o].type === 'value')
- service.snmp_oids.push(o);
- }
- },
-
- getdata: function(service, index, ok, failed, callback) {
- var that = this;
-
- if(index >= service.snmp_oids.length) {
- callback((ok > 0)?{ ok: ok, failed: failed }:null);
- return;
- }
-
- var slice;
- if(service.snmp_oids.length <= service.request.max_request_size) {
- slice = service.snmp_oids;
- index = service.snmp_oids.length;
- }
- else if(service.snmp_oids.length - index <= service.request.max_request_size) {
- slice = service.snmp_oids.slice(index, service.snmp_oids.length);
- index = service.snmp_oids.length;
- }
- else {
- slice = service.snmp_oids.slice(index, index + service.request.max_request_size);
- index += service.request.max_request_size;
- }
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': making ' + slice.length + ' entries request, max is: ' + service.request.max_request_size);
-
- service.snmp_session.get(slice, function(error, varbinds) {
- if(error) {
- service.error('Received error = ' + netdata.stringify(error) + ' varbinds = ' + netdata.stringify(varbinds));
-
- // make all values null
- var len = slice.length;
- while(len--)
- service.snmp_oids_index[slice[len]].value = null;
- }
- else {
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': got valid ' + service.module.name + ' response: ' + netdata.stringify(varbinds));
-
- for(var i = 0; i < varbinds.length; i++) {
- var value = null;
-
- if(net_snmp.isVarbindError(varbinds[i])) {
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': failed ' + service.module.name + ' get for OIDs ' + varbinds[i].oid);
-
- service.error('OID ' + varbinds[i].oid + ' gave error: ' + snmp.varbindError(varbinds[i]));
- value = null;
- failed++;
- }
- else {
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + " = " + varbinds[i].value);
-
- value = varbinds[i].value;
- 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; break;
- case 'value': service.snmp_oids_index[varbinds[i].oid].link.value = value; break;
- }
- }
- }
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': finished ' + service.module.name + ' with ' + ok + ' successful and ' + failed + ' failed values');
- }
- that.getdata(service, index, ok, failed, callback);
- });
- },
-
- process: function(service, callback) {
- this.prepare(service);
-
- if(service.snmp_oids.length === 0) {
- // no OIDs found for this service
-
- if(netdata.options.DEBUG === true)
- service.error('no OIDs to process.');
-
- callback(null);
- return;
- }
-
- if(typeof service.snmp_session === 'undefined' || service.snmp_session === null) {
- // no SNMP session has been created for this service
- // the SNMP session is just the initialization of NET-SNMP
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': opening ' + this.name + ' session on ' + service.request.hostname + ' community ' + service.request.community + ' options ' + netdata.stringify(service.request.options));
-
- // create the SNMP session
- service.snmp_session = net_snmp.createSession (service.request.hostname, service.request.community, service.request.options);
-
- if(netdata.options.DEBUG === true)
- netdata.debug(service.module.name + ': ' + service.name + ': got ' + this.name + ' session: ' + netdata.stringify(service.snmp_session));
-
- // if we later need traps, this is how to do it:
- //service.snmp_session.trap(net_snmp.TrapType.LinkDown, function(error) {
- // if(error) console.error('trap error: ' + netdata.stringify(error));
- //});
- }
-
- // do it, get the SNMP values for the sessions we need
- this.getdata(service, 0, 0, 0, callback);
- }
+ name: 'snmp',
+
+ fixoid: function(oid) {
+ if(typeof oid !== 'string')
+ return oid;
+
+ if(oid.charAt(0) === '.')
+ return oid.substring(1, oid.length);
+
+ return oid;
+ },
+
+ prepare: function(service) {
+ var __DEBUG = netdata.options.DEBUG;
+
+ if(typeof service.snmp_oids === 'undefined' || service.snmp_oids === null || service.snmp_oids.length === 0) {
+ // this is the first time we see this service
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': preparing ' + this.name + ' OIDs');
+
+ // build an index of all OIDs
+ service.snmp_oids_index = {};
+ var chart_keys = Object.keys(service.request.charts);
+ var chart_keys_len = chart_keys.length;
+ while(chart_keys_len--) {
+ var c = chart_keys[chart_keys_len];
+ var chart = service.request.charts[c];
+
+ // for each chart
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': indexing ' + this.name + ' chart: ' + c);
+
+ if(typeof chart.titleoid !== 'undefined') {
+ service.snmp_oids_index[this.fixoid(chart.titleoid)] = {
+ type: 'title',
+ link: chart
+ };
+ }
+
+ var dim_keys = Object.keys(chart.dimensions);
+ var dim_keys_len = dim_keys.length;
+ while(dim_keys_len--) {
+ var d = dim_keys[dim_keys_len];
+ var dim = chart.dimensions[d];
+
+ // for each dimension in the chart
+
+ var oid = this.fixoid(dim.oid);
+ var oidname = this.fixoid(dim.oidname);
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': indexing ' + this.name + ' chart: ' + c + ', dimension: ' + d + ', OID: ' + oid + ", OID name: " + oidname);
+
+ // link it to the point we need to set the value to
+ service.snmp_oids_index[oid] = {
+ type: 'value',
+ link: dim
+ };
+
+ if(typeof oidname !== 'undefined')
+ service.snmp_oids_index[oidname] = {
+ type: 'name',
+ link: dim
+ };
+
+ // and set the value to null
+ dim.value = null;
+ }
+ }
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': indexed ' + this.name + ' OIDs: ' + netdata.stringify(service.snmp_oids_index));
+
+ // now create the array of OIDs needed by net-snmp
+ service.snmp_oids = Object.keys(service.snmp_oids_index);
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': final list of ' + this.name + ' OIDs: ' + netdata.stringify(service.snmp_oids));
+
+ service.snmp_oids_cleaned = 0;
+ }
+ else if(service.snmp_oids_cleaned === 0) {
+ service.snmp_oids_cleaned = 1;
+
+ // the second time, keep only values
+
+ service.snmp_oids = new Array();
+ var oid_keys = Object.keys(service.snmp_oids_index);
+ var oid_keys_len = oid_keys.length;
+ while(oid_keys_len--) {
+ if (service.snmp_oids_index[oid_keys[oid_keys_len]].type === 'value')
+ service.snmp_oids.push(oid_keys[oid_keys_len]);
+ }
+ }
+ },
+
+ getdata: function(service, index, ok, failed, callback) {
+ var __DEBUG = netdata.options.DEBUG;
+ var that = this;
+
+ if(index >= service.snmp_oids.length) {
+ callback((ok > 0)?{ ok: ok, failed: failed }:null);
+ return;
+ }
+
+ var slice;
+ if(service.snmp_oids.length <= service.request.max_request_size) {
+ slice = service.snmp_oids;
+ index = service.snmp_oids.length;
+ }
+ else if(service.snmp_oids.length - index <= service.request.max_request_size) {
+ slice = service.snmp_oids.slice(index, service.snmp_oids.length);
+ index = service.snmp_oids.length;
+ }
+ else {
+ slice = service.snmp_oids.slice(index, index + service.request.max_request_size);
+ index += service.request.max_request_size;
+ }
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': making ' + slice.length + ' entries request, max is: ' + service.request.max_request_size);
+
+ service.snmp_session.get(slice, function(error, varbinds) {
+ if(error) {
+ service.error('Received error = ' + netdata.stringify(error) + ' varbinds = ' + netdata.stringify(varbinds));
+
+ // make all values null
+ var len = slice.length;
+ while(len--)
+ service.snmp_oids_index[slice[len]].value = null;
+ }
+ else {
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': got valid ' + service.module.name + ' response: ' + netdata.stringify(varbinds));
+
+ var varbinds_len = varbinds.length;
+ for(var i = 0; i < varbinds_len ; i++) {
+ var value = null;
+
+ if(net_snmp.isVarbindError(varbinds[i])) {
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': failed ' + service.module.name + ' get for OIDs ' + varbinds[i].oid);
+
+ service.error('OID ' + varbinds[i].oid + ' gave error: ' + snmp.varbindError(varbinds[i]));
+ value = null;
+ failed++;
+ }
+ else {
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': found ' + service.module.name + ' value of OIDs ' + varbinds[i].oid + " = " + varbinds[i].value);
+
+ if(varbinds[i].type === net_snmp.ObjectType.OctetString && service.snmp_oids_index[varbinds[i].oid].type !== 'title')
+ value = parseFloat(varbinds[i].value) * 1000;
+ else
+ value = varbinds[i].value;
+
+ 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; break;
+ case 'value': service.snmp_oids_index[varbinds[i].oid].link.value = value; break;
+ }
+ }
+ }
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': finished ' + service.module.name + ' with ' + ok + ' successful and ' + failed + ' failed values');
+ }
+ that.getdata(service, index, ok, failed, callback);
+ });
+ },
+
+ process: function(service, callback) {
+ var __DEBUG = netdata.options.DEBUG;
+
+ this.prepare(service);
+
+ if(service.snmp_oids.length === 0) {
+ // no OIDs found for this service
+
+ if(__DEBUG === true)
+ service.error('no OIDs to process.');
+
+ callback(null);
+ return;
+ }
+
+ if(typeof service.snmp_session === 'undefined' || service.snmp_session === null) {
+ // no SNMP session has been created for this service
+ // the SNMP session is just the initialization of NET-SNMP
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': opening ' + this.name + ' session on ' + service.request.hostname + ' community ' + service.request.community + ' options ' + netdata.stringify(service.request.options));
+
+ // create the SNMP session
+ service.snmp_session = net_snmp.createSession (service.request.hostname, service.request.community, service.request.options);
+
+ if(__DEBUG === true)
+ netdata.debug(service.module.name + ': ' + service.name + ': got ' + this.name + ' session: ' + netdata.stringify(service.snmp_session));
+
+ // if we later need traps, this is how to do it:
+ //service.snmp_session.trap(net_snmp.TrapType.LinkDown, function(error) {
+ // if(error) console.error('trap error: ' + netdata.stringify(error));
+ //});
+ }
+
+ // do it, get the SNMP values for the sessions we need
+ this.getdata(service, 0, 0, 0, callback);
+ }
};
var snmp = {
- name: __filename,
- enable_autodetect: true,
- update_every: 1,
- base_priority: 50000,
-
- charts: {},
-
- processResponse: function(service, data) {
- if(data !== null) {
- if(service.added !== true)
- service.commit();
-
- for(var c in service.request.charts) {
- var chart = snmp.charts[c];
-
- if(typeof chart === 'undefined') {
- chart = service.chart(c, service.request.charts[c]);
- snmp.charts[c] = chart;
- }
-
- service.begin(chart);
-
- for( var d in service.request.charts[c].dimensions )
- if(service.request.charts[c].dimensions[d].value !== null)
- service.set(d, service.request.charts[c].dimensions[d].value);
-
- service.end();
- }
- }
- },
-
- // module.serviceExecute()
- // this function is called only from this module
- // its purpose is to prepare the request and call
- // netdata.serviceExecute()
- serviceExecute: function(conf) {
- if(netdata.options.DEBUG === true)
- netdata.debug(this.name + ': snmp hostname: ' + conf.hostname + ', update_every: ' + conf.update_every);
-
- var service = netdata.service({
- name: conf.hostname,
- request: conf,
- update_every: conf.update_every,
- module: this,
- processor: netdata.processors.snmp
- });
-
- // multiply the charts, if required
- for(var c in service.request.charts) {
- if(netdata.options.DEBUG === true)
- netdata.debug(this.name + ': snmp hostname: ' + conf.hostname + ', examining chart: ' + c);
-
- if(typeof service.request.charts[c].update_every === 'undefined')
- service.request.charts[c].update_every = service.update_every;
-
- if(typeof service.request.charts[c].multiply_range !== 'undefined') {
- var from = service.request.charts[c].multiply_range[0];
- var to = service.request.charts[c].multiply_range[1];
- var prio = service.request.charts[c].priority || 1;
-
- if(prio < snmp.base_priority) prio += snmp.base_priority;
-
- while(from <= to) {
- var id = c + from.toString();
- var chart = extend(true, {}, service.request.charts[c]);
- chart.title += from.toString();
-
- if(typeof chart.titleoid !== 'undefined')
- chart.titleoid += from.toString();
-
- chart.priority = prio++;
- for(var d in chart.dimensions) {
- chart.dimensions[d].oid += from.toString();
-
- if(typeof chart.dimensions[d].oidname !== 'undefined')
- chart.dimensions[d].oidname += from.toString();
- }
- service.request.charts[id] = chart;
- from++;
- }
-
- delete service.request.charts[c];
- }
- else {
- if(service.request.charts[c].priority < snmp.base_priority)
- service.request.charts[c].priority += snmp.base_priority;
- }
- }
-
- service.execute(this.processResponse);
- },
-
- configure: function(config) {
- var added = 0;
-
- if(typeof config.max_request_size === 'undefined')
- config.max_request_size = 50;
-
- if(typeof(config.servers) !== 'undefined') {
- var len = config.servers.length;
- while(len--) {
- if(typeof config.servers[len].update_every === 'undefined')
- config.servers[len].update_every = this.update_every;
-
- if(typeof config.servers[len].max_request_size === 'undefined')
- config.servers[len].max_request_size = config.max_request_size;
-
- this.serviceExecute(config.servers[len]);
- added++;
- }
- }
-
- return added;
- },
-
- // module.update()
- // this is called repeatidly to collect data, by calling
- // service.execute()
- update: function(service, callback) {
- service.execute(function(serv, data) {
- service.module.processResponse(serv, data);
- callback();
- });
- },
+ name: __filename,
+ enable_autodetect: true,
+ update_every: 1,
+ base_priority: 50000,
+
+ charts: {},
+
+ processResponse: function(service, data) {
+ if(data !== null) {
+ if(service.added !== true)
+ service.commit();
+
+ var chart_keys = Object.keys(service.request.charts);
+ var chart_keys_len = chart_keys.length;
+ for(var i = 0; i < chart_keys_len; i++) {
+ var c = chart_keys[i];
+
+ var chart = snmp.charts[c];
+ if(typeof chart === 'undefined') {
+ chart = service.chart(c, service.request.charts[c]);
+ snmp.charts[c] = chart;
+ }
+
+ service.begin(chart);
+
+ var dimensions = service.request.charts[c].dimensions;
+ var dim_keys = Object.keys(dimensions);
+ var dim_keys_len = dim_keys.length;
+ for(var j = 0; j < dim_keys_len ; j++) {
+ var d = dim_keys[j];
+
+ if (dimensions[d].value !== null) {
+ if(typeof dimensions[d].offset === 'number')
+ service.set(d, dimensions[d].value + dimensions[d].offset);
+ else
+ service.set(d, dimensions[d].value);
+ }
+ }
+
+ service.end();
+ }
+ }
+ },
+
+ // module.serviceExecute()
+ // this function is called only from this module
+ // its purpose is to prepare the request and call
+ // netdata.serviceExecute()
+ serviceExecute: function(conf) {
+ var __DEBUG = netdata.options.DEBUG;
+
+ if(__DEBUG === true)
+ netdata.debug(this.name + ': snmp hostname: ' + conf.hostname + ', update_every: ' + conf.update_every);
+
+ var service = netdata.service({
+ name: conf.hostname,
+ request: conf,
+ update_every: conf.update_every,
+ module: this,
+ processor: netdata.processors.snmp
+ });
+
+ // multiply the charts, if required
+ var chart_keys = Object.keys(service.request.charts);
+ var chart_keys_len = chart_keys.length;
+ for( var i = 0; i < chart_keys_len ; i++ ) {
+ var c = chart_keys[i];
+ var service_request_chart = service.request.charts[c];
+
+ if(__DEBUG === true)
+ netdata.debug(this.name + ': snmp hostname: ' + conf.hostname + ', examining chart: ' + c);
+
+ if(typeof service_request_chart.update_every === 'undefined')
+ service_request_chart.update_every = service.update_every;
+
+ if(typeof service_request_chart.multiply_range !== 'undefined') {
+ var from = service_request_chart.multiply_range[0];
+ var to = service_request_chart.multiply_range[1];
+ var prio = service_request_chart.priority || 1;
+
+ if(prio < snmp.base_priority) prio += snmp.base_priority;
+
+ while(from <= to) {
+ var id = c + from.toString();
+ var chart = extend(true, {}, service_request_chart);
+ chart.title += from.toString();
+
+ if(typeof chart.titleoid !== 'undefined')
+ chart.titleoid += from.toString();
+
+ chart.priority = prio++;
+
+ var dim_keys = Object.keys(chart.dimensions);
+ var dim_keys_len = dim_keys.length;
+ for(var j = 0; j < dim_keys_len ; j++) {
+ var d = dim_keys[j];
+
+ chart.dimensions[d].oid += from.toString();
+
+ if(typeof chart.dimensions[d].oidname !== 'undefined')
+ chart.dimensions[d].oidname += from.toString();
+ }
+ service.request.charts[id] = chart;
+ from++;
+ }
+
+ delete service.request.charts[c];
+ }
+ else {
+ if(service.request.charts[c].priority < snmp.base_priority)
+ service.request.charts[c].priority += snmp.base_priority;
+ }
+ }
+
+ service.execute(this.processResponse);
+ },
+
+ configure: function(config) {
+ var added = 0;
+
+ if(typeof config.max_request_size === 'undefined')
+ config.max_request_size = 50;
+
+ if(typeof(config.servers) !== 'undefined') {
+ var len = config.servers.length;
+ while(len--) {
+ if(typeof config.servers[len].update_every === 'undefined')
+ config.servers[len].update_every = this.update_every;
+
+ if(typeof config.servers[len].max_request_size === 'undefined')
+ config.servers[len].max_request_size = config.max_request_size;
+
+ this.serviceExecute(config.servers[len]);
+ added++;
+ }
+ }
+
+ return added;
+ },
+
+ // module.update()
+ // this is called repeatidly to collect data, by calling
+ // service.execute()
+ update: function(service, callback) {
+ service.execute(function(serv, data) {
+ service.module.processResponse(serv, data);
+ callback();
+ });
+ }
};
module.exports = snmp;
projects / netdata.git / blobdiff