Imported Upstream version 1.0.0upstream/1.0.0

15 files changed, 4729 insertions, 0 deletions

diff --git a/node.d/Makefile.am b/node.d/Makefile.am
new file mode 100644
index 000000000..ae7eeac52
--- /dev/null
+++ b/node.d/Makefile.am
@@ -0,0 +1,26 @@
+MAINTAINERCLEANFILES= $(srcdir)/Makefile.in
+
+dist_node_SCRIPTS = \
+	README.md \
+	named.node.js \
+	sma_webbox.node.js \
+	snmp.node.js \
+	$(NULL)
+
+nodemodulesdir=$(nodedir)/node_modules
+dist_nodemodules_DATA = \
+	node_modules/netdata.js \
+	node_modules/extend.js \
+	node_modules/pixl-xml.js \
+	node_modules/net-snmp.js \
+	node_modules/asn1.js \
+	$(NULL)
+
+nodemodulesberdir=$(nodedir)/node_modules/ber
+dist_nodemodulesber_DATA = \
+	node_modules/ber/index.js \
+	node_modules/ber/errors.js \
+	node_modules/ber/reader.js \
+	node_modules/ber/types.js \
+	node_modules/ber/writer.js \
+	$(NULL)
diff --git a/node.d/README.md b/node.d/README.md
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/node.d/README.md
diff --git a/node.d/named.node.js b/node.d/named.node.js
new file mode 100755
index 000000000..c2b15eae7
--- /dev/null
+++ b/node.d/named.node.js
@@ -0,0 +1,586 @@
+'use strict';
+
+// collect statistics from bind (named) v9.10+
+//
+// bind statistics documentation at:
+// http://jpmens.net/2013/03/18/json-in-bind-9-s-statistics-server/
+// https://ftp.isc.org/isc/bind/9.10.3/doc/arm/Bv9ARM.ch06.html#statistics
+
+// example configuration in /etc/netdata/named.conf
+// the module supports auto-detection if bind is running in localhost
+
+/*
+{
+	"enable_autodetect": true,
+	"update_every": 5,
+	"servers": [
+		{
+			"name": "bind1",
+			"url": "http://127.0.0.1:8888/json/v1/server",
+			"update_every": 1
+		},
+		{
+			"name": "bind2",
+			"url": "http://10.0.0.1:8888/xml/v3/server",
+			"update_every": 2
+		}
+	]
+}
+*/
+
+// the following is the bind named.conf configuration required
+
+/*
+statistics-channels {
+        inet 127.0.0.1 port 8888 allow { 127.0.0.1; };
+};
+*/
+
+var url = require('url');
+var http = require('http');
+var XML = require('pixl-xml');
+var netdata = require('netdata');
+
+if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
+
+var named = {
+	name: __filename,
+	enable_autodetect: true,
+	update_every: 1,
+	base_priority: 60000,
+	charts: {},
+
+	chartFromMembersCreate: function(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
+		var chart = {
+			id: id,											// the unique id of the chart
+			name: '',										// the unique name of the chart
+			title: service.name + ' ' + title_suffix,		// the title of the chart
+			units: units,									// the units of the chart dimensions
+			family: family,									// the family of the chart
+			context: context,								// the context of the chart
+			type: type,										// the type of the chart
+			priority: priority,								// the priority relative to others in the same family
+			update_every: service.update_every, 			// the expected update frequency of the chart
+			dimensions: {}
+		}
+
+		var found = 0;
+		for(var x in obj) {
+			if(typeof(obj[x]) !== 'undefined' && obj[x] !== 0) {
+				found++;
+				chart.dimensions[x] = {
+					id: x,					// the unique id of the dimension
+					name: x,				// the name of the dimension
+					algorithm: algorithm,	// the id of the netdata algorithm
+					multiplier: multiplier,	// the multiplier
+					divisor: divisor,		// the divisor
+					hidden: false			// is hidden (boolean)
+				}
+			}
+		}
+
+		if(found === false)
+			return null;
+
+		chart = service.chart(id, chart);
+		this.charts[id] = chart;
+		return chart;
+	},
+
+	chartFromMembers: function(service, obj, id_suffix, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
+		var id = 'named_' + service.name + '.' + id_suffix;
+		var chart = this.charts[id];
+
+		if(typeof chart === 'undefined') {
+			chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
+			if(chart === null) return false;
+		}
+		else {
+			// check if we need to re-generate the chart
+			for(var x in obj) {
+				if(typeof(chart.dimensions[x]) === 'undefined') {
+					chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
+					if(chart === null) return false;
+					break;
+				}
+			}
+		}
+
+		var found = 0;
+		service.begin(chart);
+		for(var x in obj) {
+			if(typeof(chart.dimensions[x]) !== 'undefined') {
+				found++;
+				service.set(x, obj[x]);
+			}
+		}
+		service.end();
+
+		if(found > 0) return true;
+		return false;
+	},
+
+	// an index to map values to different charts
+	lookups: {
+		nsstats: {},
+		resolver_stats: {},
+		numfetch: {}
+	},
+
+	// transform the XML response of bind
+	// to the JSON response of bind
+	xml2js: function(service, data_xml) {
+		var d = XML.parse(data_xml);
+		if(d === null) return null;
+
+		var data = {};
+		var len = d.server.counters.length;
+		while(len--) {
+			var a = d.server.counters[len];
+			if(typeof a.counter === 'undefined') continue;
+			if(a.type === 'opcode') a.type = 'opcodes';
+			else if(a.type === 'qtype') a.type = 'qtypes';
+			else if(a.type === 'nsstat') a.type = 'nsstats';
+			var aa = data[a.type] = {};
+			var alen = 0
+			var alen2 = a.counter.length;
+			while(alen < alen2) {
+				aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
+				alen++;
+			}
+		}
+
+		data.views = {};
+		var vlen = d.views.view.length;
+		while(vlen--) {
+			var vname = d.views.view[vlen].name;
+			data.views[vname] = { resolver: {} };
+			var len = d.views.view[vlen].counters.length;
+			while(len--) {
+				var a = d.views.view[vlen].counters[len];
+				if(typeof a.counter === 'undefined') continue;
+				if(a.type === 'resstats') a.type = 'stats';
+				else if(a.type === 'resqtype') a.type = 'qtypes';
+				else if(a.type === 'adbstat') a.type = 'adb';
+				var aa = data.views[vname].resolver[a.type] = {};
+				var alen = 0;
+				var alen2 = a.counter.length;
+				while(alen < alen2) {
+					aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
+					alen++;
+				}
+			}
+		}
+
+		return data;
+	},
+
+	processResponse: function(service, data) {
+		if(data !== null) {
+			var r;
+
+			// parse XML or JSON
+			// pepending on the URL given
+			if(service.request.path.match(/^\/xml/) !== null)
+				r = named.xml2js(service, data);
+			else
+				r = JSON.parse(data);
+
+			if(typeof r === 'undefined' || r === null) {
+				netdata.serviceError(service, "Cannot parse these data: " + data);
+				return;
+			}
+
+			if(service.added !== true)
+				service.commit();
+
+			if(typeof r.nsstats !== 'undefined') {
+				// we split the nsstats object to several others
+				var global_requests = {}, global_requests_enable = false;
+				var global_failures = {}, global_failures_enable = false;
+				var global_failures_detail = {}, global_failures_detail_enable = false;
+				var global_updates = {}, global_updates_enable = false;
+				var protocol_queries = {}, protocol_queries_enable = false;
+				var global_queries = {}, global_queries_enable = false;
+				var global_queries_success = {}, global_queries_success_enable = false;
+				var default_enable = false;
+				var RecursClients = 0;
+
+				// RecursClients is an absolute value
+				if(typeof r.nsstats['RecursClients'] !== 'undefined') {
+					RecursClients = r.nsstats['RecursClients'];
+					delete r.nsstats['RecursClients'];
+				}
+
+				for( var x in r.nsstats ) {
+					// we maintain an index of the values found
+					// mapping them to objects splitted
+
+					var look = named.lookups.nsstats[x];
+					if(typeof look === 'undefined') {
+						// a new value, not found in the index
+						// index it:
+						if(x === 'Requestv4') {
+							named.lookups.nsstats[x] = {
+								name: 'IPv4',
+								type: 'global_requests'
+							};
+						}
+						else if(x === 'Requestv6') {
+							named.lookups.nsstats[x] = {
+								name: 'IPv6',
+								type: 'global_requests'
+							};
+						}
+						else if(x === 'QryFailure') {
+							named.lookups.nsstats[x] = {
+								name: 'failures',
+								type: 'global_failures'
+							};
+						}
+						else if(x === 'QryUDP') {
+							named.lookups.nsstats[x] = {
+								name: 'UDP',
+								type: 'protocol_queries'
+							};
+						}
+						else if(x === 'QryTCP') {
+							named.lookups.nsstats[x] = {
+								name: 'TCP',
+								type: 'protocol_queries'
+							};
+						}
+						else if(x === 'QrySuccess') {
+							named.lookups.nsstats[x] = {
+								name: 'queries',
+								type: 'global_queries_success'
+							};
+						}
+						else if(x.match(/QryRej$/) !== null) {
+							named.lookups.nsstats[x] = {
+								name: x,
+								type: 'global_failures_detail'
+							};
+						}
+						else if(x.match(/^Qry/) !== null) {
+							named.lookups.nsstats[x] = {
+								name: x,
+								type: 'global_queries'
+							};
+						}
+						else if(x.match(/^Update/) !== null) {
+							named.lookups.nsstats[x] = {
+								name: x,
+								type: 'global_updates'
+							};
+						}
+						else {
+							// values not mapped, will remain
+							// in the default map
+							named.lookups.nsstats[x] = {
+								name: x,
+								type: 'default'
+							};
+						}
+
+						look = named.lookups.nsstats[x];
+						// netdata.error('lookup nsstats value: ' + x + ' >>> ' + named.lookups.nsstats[x].type);
+					}
+
+					switch(look.type) {
+						case 'global_requests': global_requests[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_requests_enable = true; break;
+						case 'global_queries': global_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_enable = true; break;
+						case 'global_queries_success': global_queries_success[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_success_enable = true; break;
+						case 'global_updates': global_updates[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_updates_enable = true; break;
+						case 'protocol_queries': protocol_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; protocol_queries_enable = true; break;
+						case 'global_failures': global_failures[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_enable = true; break;
+						case 'global_failures_detail': global_failures_detail[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_detail_enable = true; break;
+						default: default_enable = true; break;
+					}
+				}
+
+				if(global_requests_enable == true)
+					service.module.chartFromMembers(service, global_requests, 'received_requests', 'Bind, Global Received Requests by IP version', 'requests/s', 'requests', 'named.requests', netdata.chartTypes.stacked, named.base_priority + 1, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_queries_success_enable == true)
+					service.module.chartFromMembers(service, global_queries_success, 'global_queries_success', 'Bind, Global Successful Queries', 'queries/s', 'queries', 'named.queries.succcess', netdata.chartTypes.line, named.base_priority + 2, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(protocol_queries_enable == true)
+					service.module.chartFromMembers(service, protocol_queries, 'protocols_queries', 'Bind, Global Queries by IP Protocol', 'queries/s', 'queries', 'named.protocol.queries', netdata.chartTypes.stacked, named.base_priority + 3, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_queries_enable == true)
+					service.module.chartFromMembers(service, global_queries, 'global_queries', 'Bind, Global Queries Analysis', 'queries/s', 'queries', 'named.global.queries', netdata.chartTypes.stacked, named.base_priority + 4, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_updates_enable == true)
+					service.module.chartFromMembers(service, global_updates, 'received_updates', 'Bind, Global Received Updates', 'updates/s', 'updates', 'named.global.updates', netdata.chartTypes.stacked, named.base_priority + 5, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_failures_enable == true)
+					service.module.chartFromMembers(service, global_failures, 'query_failures', 'Bind, Global Query Failures', 'failures/s', 'failures', 'named.global.failures', netdata.chartTypes.line, named.base_priority + 6, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_failures_detail_enable == true)
+					service.module.chartFromMembers(service, global_failures_detail, 'query_failures_detail', 'Bind, Global Query Failures Analysis', 'failures/s', 'failures', 'named.global.failures.detail', netdata.chartTypes.stacked, named.base_priority + 7, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(default_enable === true)
+					service.module.chartFromMembers(service, r.nsstats, 'nsstats', 'Bind, Other Global Server Statistics', 'operations/s', 'other', 'named.nsstats', netdata.chartTypes.line, named.base_priority + 8, netdata.chartAlgorithms.incremental, 1, 1);
+
+				// RecursClients chart
+				{
+					var id = 'named_' + service.name + '.recursive_clients';
+					var chart = named.charts[id];
+
+					if(typeof chart === 'undefined') {
+						chart = {
+							id: id,											// the unique id of the chart
+							name: '',										// the unique name of the chart
+							title: service.name + ' Bind, Current Recursive Clients',		// the title of the chart
+							units: 'clients',								// the units of the chart dimensions
+							family: 'clients',								// the family of the chart
+							context: 'named.recursive.clients',				// the context of the chart
+							type: netdata.chartTypes.line,					// the type of the chart
+							priority: named.base_priority + 1,				// the priority relative to others in the same family
+							update_every: service.update_every,				// the expected update frequency of the chart
+							dimensions: {
+								'clients': {
+									id: 'clients',								// the unique id of the dimension
+									name: '',									// the name of the dimension
+									algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+									multiplier: 1,								// the multiplier
+									divisor: 1,									// the divisor
+									hidden: false								// is hidden (boolean)
+								}
+							}
+						};
+
+						chart = service.chart(id, chart);
+						named.charts[id] = chart;
+					}
+
+					service.begin(chart);
+					service.set('clients', RecursClients);
+					service.end();
+				}
+			}
+
+			if(typeof r.opcodes !== 'undefined')
+				service.module.chartFromMembers(service, r.opcodes, 'in_opcodes', 'Bind, Global Incoming Requests by OpCode', 'requests/s', 'requests', 'named.in.opcodes', netdata.chartTypes.stacked, named.base_priority + 9, netdata.chartAlgorithms.incremental, 1, 1);
+
+			if(typeof r.qtypes !== 'undefined')
+				service.module.chartFromMembers(service, r.qtypes, 'in_qtypes', 'Bind, Global Incoming Requests by Query Type', 'requests/s', 'requests', 'named.in.qtypes', netdata.chartTypes.stacked, named.base_priority + 10, netdata.chartAlgorithms.incremental, 1, 1);
+
+			if(typeof r.sockstats !== 'undefined')
+				service.module.chartFromMembers(service, r.sockstats, 'in_sockstats', 'Bind, Global Socket Statistics', 'operations/s', 'sockets', 'named.in.sockstats', netdata.chartTypes.line, named.base_priority + 11, netdata.chartAlgorithms.incremental, 1, 1);
+
+			if(typeof r.views !== 'undefined') {
+				for( var x in r.views ) {
+					var resolver = r.views[x].resolver;
+
+					if(typeof resolver !== 'undefined') {
+						if(typeof resolver.stats !== 'undefined') {
+							var NumFetch = 0;
+							var key = service.name + '.' + x;
+							var default_enable = false;
+							var rtt = {}, rtt_enable = false;
+
+							// NumFetch is an absolute value
+							if(typeof resolver.stats['NumFetch'] !== 'undefined') {
+								named.lookups.numfetch[key] = true;
+								NumFetch = resolver.stats['NumFetch'];
+								delete resolver.stats['NumFetch'];
+							}
+							if(typeof resolver.stats['BucketSize'] !== 'undefined') {
+								delete resolver.stats['BucketSize'];
+							}
+
+							// split the QryRTT* from the main chart
+							for( var y in resolver.stats ) {
+								// we maintain an index of the values found
+								// mapping them to objects splitted
+
+								var look = named.lookups.resolver_stats[y];
+								if(typeof look === 'undefined') {
+									if(y.match(/^QryRTT/) !== null) {
+										named.lookups.resolver_stats[y] = {
+											name: y,
+											type: 'rtt'
+										};
+									}
+									else {
+										named.lookups.resolver_stats[y] = {
+											name: y,
+											type: 'default'
+										};
+									}
+
+									look = named.lookups.resolver_stats[y];
+									// netdata.error('lookup resolver stats value: ' + y + ' >>> ' + look.type);
+								}
+
+								switch(look.type) {
+									case 'rtt': rtt[look.name] = resolver.stats[y]; delete resolver.stats[y]; rtt_enable = true; break;
+									default: default_enable = true; break;
+								}
+							}
+
+							if(rtt_enable)
+								service.module.chartFromMembers(service, rtt, 'view_resolver_rtt_' + x, 'Bind, ' + x + ' View, Resolver Round Trip Timings', 'queries/s', 'view_' + x, 'named.resolver.rtt', netdata.chartTypes.stacked, named.base_priority + 12, netdata.chartAlgorithms.incremental, 1, 1);
+
+							if(default_enable)
+								service.module.chartFromMembers(service, resolver.stats, 'view_resolver_stats_' + x, 'Bind, ' + x + ' View, Resolver Statistics', 'operations/s', 'view_' + x, 'named.resolver.stats', netdata.chartTypes.line, named.base_priority + 13, netdata.chartAlgorithms.incremental, 1, 1);
+
+							// NumFetch chart
+							if(typeof named.lookups.numfetch[key] !== 'undefined') {
+								var id = 'named_' + service.name + '.view_resolver_numfetch_' + x;
+								var chart = named.charts[id];
+
+								if(typeof chart === 'undefined') {
+									chart = {
+										id: id,											// the unique id of the chart
+										name: '',										// the unique name of the chart
+										title: service.name + ' Bind, ' + x + ' View, Resolver Active Queries',		// the title of the chart
+										units: 'queries',								// the units of the chart dimensions
+										family: 'view_' + x,							// the family of the chart
+										context: 'named.resolver.active.queries',		// the context of the chart
+										type: netdata.chartTypes.line,					// the type of the chart
+										priority: named.base_priority + 1001,			// the priority relative to others in the same family
+										update_every: service.update_every,				// the expected update frequency of the chart
+										dimensions: {
+											'queries': {
+												id: 'queries',								// the unique id of the dimension
+												name: '',									// the name of the dimension
+												algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+												multiplier: 1,								// the multiplier
+												divisor: 1,									// the divisor
+												hidden: false								// is hidden (boolean)
+											}
+										}
+									};
+
+									chart = service.chart(id, chart);
+									named.charts[id] = chart;
+								}
+
+								service.begin(chart);
+								service.set('queries', NumFetch);
+								service.end();
+							}
+						}
+					}
+
+					if(typeof resolver.qtypes !== 'undefined')
+						service.module.chartFromMembers(service, resolver.qtypes, 'view_resolver_qtypes_' + x, 'Bind, ' + x + ' View, Requests by Query Type', 'requests/s', 'view_' + x, 'named.resolver.qtypes', netdata.chartTypes.stacked, named.base_priority + 14, netdata.chartAlgorithms.incremental, 1, 1);
+
+					//if(typeof resolver.cache !== 'undefined')
+					//	service.module.chartFromMembers(service, resolver.cache, 'view_resolver_cache_' + x, 'Bind, ' + x + ' View, Cache Entries', 'entries', 'view_' + x, 'named.resolver.cache', netdata.chartTypes.stacked, named.base_priority + 15, netdata.chartAlgorithms.absolute, 1, 1);
+
+					if(typeof resolver.cachestats['CacheHits'] !== 'undefined' && resolver.cachestats['CacheHits'] > 0) {
+						var id = 'named_' + service.name + '.view_resolver_cachehits_' + x;
+						var chart = named.charts[id];
+
+						if(typeof chart === 'undefined') {
+							chart = {
+								id: id,											// the unique id of the chart
+								name: '',										// the unique name of the chart
+								title: service.name + ' Bind, ' + x + ' View, Resolver Cache Hits',		// the title of the chart
+								units: 'operations/s',							// the units of the chart dimensions
+								family: 'view_' + x,							// the family of the chart
+								context: 'named.resolver.cache.hits',			// the context of the chart
+								type: netdata.chartTypes.area,					// the type of the chart
+								priority: named.base_priority + 1100,			// the priority relative to others in the same family
+								update_every: service.update_every,				// the expected update frequency of the chart
+								dimensions: {
+									'CacheHits': {
+										id: 'CacheHits',							// the unique id of the dimension
+										name: 'hits',								// the name of the dimension
+										algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
+										multiplier: 1,								// the multiplier
+										divisor: 1,									// the divisor
+										hidden: false								// is hidden (boolean)
+									},
+									'CacheMisses': {
+										id: 'CacheMisses',							// the unique id of the dimension
+										name: 'misses',								// the name of the dimension
+										algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
+										multiplier: -1,								// the multiplier
+										divisor: 1,									// the divisor
+										hidden: false								// is hidden (boolean)
+									}
+								}
+							};
+
+							chart = service.chart(id, chart);
+							named.charts[id] = chart;
+						}
+
+						service.begin(chart);
+						service.set('CacheHits', resolver.cachestats['CacheHits']);
+						service.set('CacheMisses', resolver.cachestats['CacheMisses']);
+						service.end();
+					}
+
+					// this is wrong, it contains many types of info:
+					// 1. CacheHits, CacheMisses - incremental (added above)
+					// 2. QueryHits, QueryMisses - incremental
+					// 3. DeleteLRU, DeleteTTL - incremental
+					// 4. CacheNodes, CacheBuckets - absolute
+					// 5. TreeMemTotal, TreeMemInUse - absolute
+					// 6. HeapMemMax, HeapMemTotal, HeapMemInUse - absolute
+					//if(typeof resolver.cachestats !== 'undefined')
+					//	service.module.chartFromMembers(service, resolver.cachestats, 'view_resolver_cachestats_' + x, 'Bind, ' + x + ' View, Cache Statistics', 'requests/s', 'view_' + x, 'named.resolver.cache.stats', netdata.chartTypes.line, named.base_priority + 1001, netdata.chartAlgorithms.incremental, 1, 1);
+
+					//if(typeof resolver.adb !== 'undefined')
+					//	service.module.chartFromMembers(service, resolver.adb, 'view_resolver_adb_' + x, 'Bind, ' + x + ' View, ADB Statistics', 'entries', 'view_' + x, 'named.resolver.adb', netdata.chartTypes.line, named.base_priority + 1002, netdata.chartAlgorithms.absolute, 1, 1);
+				}
+			}
+		}
+	},
+
+	// module.serviceExecute()
+	// this function is called only from this module
+	// its purpose is to prepare the request and call
+	// netdata.serviceExecute()
+	serviceExecute: function(name, a_url, update_every) {
+		if(netdata.options.DEBUG === true) netdata.debug(this.name + ': ' + name + ': url: ' + a_url + ', update_every: ' + update_every);
+		var service = netdata.service({
+			name: name,
+			request: netdata.requestFromURL(a_url),
+			update_every: update_every,
+			module: this
+		});
+
+		service.execute(this.processResponse);
+	},
+
+	configure: function(config) {
+		var added = 0;
+
+		if(this.enable_autodetect === true) {
+			this.serviceExecute('local', 'http://localhost:8888/json/v1/server', this.update_every);
+			added++;
+		}
+		
+		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;
+
+				this.serviceExecute(config.servers[len].name, config.servers[len].url, config.servers[len].update_every);
+				added++;
+			}
+		}
+
+		return added;
+	},
+
+	// module.update()
+	// this is called repeatidly to collect data, by calling
+	// netdata.serviceExecute()
+	update: function(service, callback) {
+		service.execute(function(serv, data) {
+			service.module.processResponse(serv, data);
+			callback();
+		});
+	},
+};
+
+module.exports = named;
diff --git a/node.d/node_modules/asn1.js b/node.d/node_modules/asn1.js
new file mode 100644
index 000000000..d1766e7a6
--- /dev/null
+++ b/node.d/node_modules/asn1.js
@@ -0,0 +1,20 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+// If you have no idea what ASN.1 or BER is, see this:
+// ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc
+
+var Ber = require('./ber/index');
+
+
+
+///--- Exported API
+
+module.exports = {
+
+  Ber: Ber,
+
+  BerReader: Ber.Reader,
+
+  BerWriter: Ber.Writer
+
+};
diff --git a/node.d/node_modules/ber/errors.js b/node.d/node_modules/ber/errors.js
new file mode 100644
index 000000000..ff21d4fab
--- /dev/null
+++ b/node.d/node_modules/ber/errors.js
@@ -0,0 +1,13 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+
+module.exports = {
+
+  newInvalidAsn1Error: function(msg) {
+    var e = new Error();
+    e.name = 'InvalidAsn1Error';
+    e.message = msg || '';
+    return e;
+  }
+
+};
diff --git a/node.d/node_modules/ber/index.js b/node.d/node_modules/ber/index.js
new file mode 100644
index 000000000..4fb90aea9
--- /dev/null
+++ b/node.d/node_modules/ber/index.js
@@ -0,0 +1,27 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+var errors = require('./errors');
+var types = require('./types');
+
+var Reader = require('./reader');
+var Writer = require('./writer');
+
+
+///--- Exports
+
+module.exports = {
+
+  Reader: Reader,
+
+  Writer: Writer
+
+};
+
+for (var t in types) {
+  if (types.hasOwnProperty(t))
+    module.exports[t] = types[t];
+}
+for (var e in errors) {
+  if (errors.hasOwnProperty(e))
+    module.exports[e] = errors[e];
+}
diff --git a/node.d/node_modules/ber/reader.js b/node.d/node_modules/ber/reader.js
new file mode 100644
index 000000000..0a00e98e3
--- /dev/null
+++ b/node.d/node_modules/ber/reader.js
@@ -0,0 +1,261 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+var assert = require('assert');
+
+var ASN1 = require('./types');
+var errors = require('./errors');
+
+
+///--- Globals
+
+var newInvalidAsn1Error = errors.newInvalidAsn1Error;
+
+
+
+///--- API
+
+function Reader(data) {
+  if (!data || !Buffer.isBuffer(data))
+    throw new TypeError('data must be a node Buffer');
+
+  this._buf = data;
+  this._size = data.length;
+
+  // These hold the "current" state
+  this._len = 0;
+  this._offset = 0;
+}
+
+Object.defineProperty(Reader.prototype, 'length', {
+  enumerable: true,
+  get: function () { return (this._len); }
+});
+
+Object.defineProperty(Reader.prototype, 'offset', {
+  enumerable: true,
+  get: function () { return (this._offset); }
+});
+
+Object.defineProperty(Reader.prototype, 'remain', {
+  get: function () { return (this._size - this._offset); }
+});
+
+Object.defineProperty(Reader.prototype, 'buffer', {
+  get: function () { return (this._buf.slice(this._offset)); }
+});
+
+
+/**
+ * Reads a single byte and advances offset; you can pass in `true` to make this
+ * a "peek" operation (i.e., get the byte, but don't advance the offset).
+ *
+ * @param {Boolean} peek true means don't move offset.
+ * @return {Number} the next byte, null if not enough data.
+ */
+Reader.prototype.readByte = function(peek) {
+  if (this._size - this._offset < 1)
+    return null;
+
+  var b = this._buf[this._offset] & 0xff;
+
+  if (!peek)
+    this._offset += 1;
+
+  return b;
+};
+
+
+Reader.prototype.peek = function() {
+  return this.readByte(true);
+};
+
+
+/**
+ * Reads a (potentially) variable length off the BER buffer.  This call is
+ * not really meant to be called directly, as callers have to manipulate
+ * the internal buffer afterwards.
+ *
+ * As a result of this call, you can call `Reader.length`, until the
+ * next thing called that does a readLength.
+ *
+ * @return {Number} the amount of offset to advance the buffer.
+ * @throws {InvalidAsn1Error} on bad ASN.1
+ */
+Reader.prototype.readLength = function(offset) {
+  if (offset === undefined)
+    offset = this._offset;
+
+  if (offset >= this._size)
+    return null;
+
+  var lenB = this._buf[offset++] & 0xff;
+  if (lenB === null)
+    return null;
+
+  if ((lenB & 0x80) == 0x80) {
+    lenB &= 0x7f;
+
+    if (lenB == 0)
+      throw newInvalidAsn1Error('Indefinite length not supported');
+
+    if (lenB > 4)
+      throw newInvalidAsn1Error('encoding too long');
+
+    if (this._size - offset < lenB)
+      return null;
+
+    this._len = 0;
+    for (var i = 0; i < lenB; i++)
+      this._len = (this._len << 8) + (this._buf[offset++] & 0xff);
+
+  } else {
+    // Wasn't a variable length
+    this._len = lenB;
+  }
+
+  return offset;
+};
+
+
+/**
+ * Parses the next sequence in this BER buffer.
+ *
+ * To get the length of the sequence, call `Reader.length`.
+ *
+ * @return {Number} the sequence's tag.
+ */
+Reader.prototype.readSequence = function(tag) {
+  var seq = this.peek();
+  if (seq === null)
+    return null;
+  if (tag !== undefined && tag !== seq)
+    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
+                              ': got 0x' + seq.toString(16));
+
+  var o = this.readLength(this._offset + 1); // stored in `length`
+  if (o === null)
+    return null;
+
+  this._offset = o;
+  return seq;
+};
+
+
+Reader.prototype.readInt = function() {
+  return this._readTag(ASN1.Integer);
+};
+
+
+Reader.prototype.readBoolean = function() {
+  return (this._readTag(ASN1.Boolean) === 0 ? false : true);
+};
+
+
+Reader.prototype.readEnumeration = function() {
+  return this._readTag(ASN1.Enumeration);
+};
+
+
+Reader.prototype.readString = function(tag, retbuf) {
+  if (!tag)
+    tag = ASN1.OctetString;
+
+  var b = this.peek();
+  if (b === null)
+    return null;
+
+  if (b !== tag)
+    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
+                              ': got 0x' + b.toString(16));
+
+  var o = this.readLength(this._offset + 1); // stored in `length`
+
+  if (o === null)
+    return null;
+
+  if (this.length > this._size - o)
+    return null;
+
+  this._offset = o;
+
+  if (this.length === 0)
+    return retbuf ? new Buffer(0) : '';
+
+  var str = this._buf.slice(this._offset, this._offset + this.length);
+  this._offset += this.length;
+
+  return retbuf ? str : str.toString('utf8');
+};
+
+Reader.prototype.readOID = function(tag) {
+  if (!tag)
+    tag = ASN1.OID;
+
+  var b = this.readString(tag, true);
+  if (b === null)
+    return null;
+
+  var values = [];
+  var value = 0;
+
+  for (var i = 0; i < b.length; i++) {
+    var byte = b[i] & 0xff;
+
+    value <<= 7;
+    value += byte & 0x7f;
+    if ((byte & 0x80) == 0) {
+      values.push(value);
+      value = 0;
+    }
+  }
+
+  value = values.shift();
+  values.unshift(value % 40);
+  values.unshift((value / 40) >> 0);
+
+  return values.join('.');
+};
+
+
+Reader.prototype._readTag = function(tag) {
+  assert.ok(tag !== undefined);
+
+  var b = this.peek();
+
+  if (b === null)
+    return null;
+
+  if (b !== tag)
+    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
+                              ': got 0x' + b.toString(16));
+
+  var o = this.readLength(this._offset + 1); // stored in `length`
+  if (o === null)
+    return null;
+
+  if (this.length > 4)
+    throw newInvalidAsn1Error('Integer too long: ' + this.length);
+
+  if (this.length > this._size - o)
+    return null;
+  this._offset = o;
+
+  var fb = this._buf[this._offset];
+  var value = 0;
+
+  for (var i = 0; i < this.length; i++) {
+    value <<= 8;
+    value |= (this._buf[this._offset++] & 0xff);
+  }
+
+  if ((fb & 0x80) == 0x80 && i !== 4)
+    value -= (1 << (i * 8));
+
+  return value >> 0;
+};
+
+
+
+///--- Exported API
+
+module.exports = Reader;
diff --git a/node.d/node_modules/ber/types.js b/node.d/node_modules/ber/types.js
new file mode 100644
index 000000000..8aea00013
--- /dev/null
+++ b/node.d/node_modules/ber/types.js
@@ -0,0 +1,36 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+
+module.exports = {
+  EOC: 0,
+  Boolean: 1,
+  Integer: 2,
+  BitString: 3,
+  OctetString: 4,
+  Null: 5,
+  OID: 6,
+  ObjectDescriptor: 7,
+  External: 8,
+  Real: 9, // float
+  Enumeration: 10,
+  PDV: 11,
+  Utf8String: 12,
+  RelativeOID: 13,
+  Sequence: 16,
+  Set: 17,
+  NumericString: 18,
+  PrintableString: 19,
+  T61String: 20,
+  VideotexString: 21,
+  IA5String: 22,
+  UTCTime: 23,
+  GeneralizedTime: 24,
+  GraphicString: 25,
+  VisibleString: 26,
+  GeneralString: 28,
+  UniversalString: 29,
+  CharacterString: 30,
+  BMPString: 31,
+  Constructor: 32,
+  Context: 128
+};
diff --git a/node.d/node_modules/ber/writer.js b/node.d/node_modules/ber/writer.js
new file mode 100644
index 000000000..d9d99af68
--- /dev/null
+++ b/node.d/node_modules/ber/writer.js
@@ -0,0 +1,316 @@
+// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
+
+var assert = require('assert');
+var ASN1 = require('./types');
+var errors = require('./errors');
+
+
+///--- Globals
+
+var newInvalidAsn1Error = errors.newInvalidAsn1Error;
+
+var DEFAULT_OPTS = {
+  size: 1024,
+  growthFactor: 8
+};
+
+
+///--- Helpers
+
+function merge(from, to) {
+  assert.ok(from);
+  assert.equal(typeof(from), 'object');
+  assert.ok(to);
+  assert.equal(typeof(to), 'object');
+
+  var keys = Object.getOwnPropertyNames(from);
+  keys.forEach(function(key) {
+    if (to[key])
+      return;
+
+    var value = Object.getOwnPropertyDescriptor(from, key);
+    Object.defineProperty(to, key, value);
+  });
+
+  return to;
+}
+
+
+
+///--- API
+
+function Writer(options) {
+  options = merge(DEFAULT_OPTS, options || {});
+
+  this._buf = new Buffer(options.size || 1024);
+  this._size = this._buf.length;
+  this._offset = 0;
+  this._options = options;
+
+  // A list of offsets in the buffer where we need to insert
+  // sequence tag/len pairs.
+  this._seq = [];
+}
+
+Object.defineProperty(Writer.prototype, 'buffer', {
+  get: function () {
+    if (this._seq.length)
+      throw new InvalidAsn1Error(this._seq.length + ' unended sequence(s)');
+
+    return (this._buf.slice(0, this._offset));
+  }
+});
+
+Writer.prototype.writeByte = function(b) {
+  if (typeof(b) !== 'number')
+    throw new TypeError('argument must be a Number');
+
+  this._ensure(1);
+  this._buf[this._offset++] = b;
+};
+
+
+Writer.prototype.writeInt = function(i, tag) {
+  if (typeof(i) !== 'number')
+    throw new TypeError('argument must be a Number');
+  if (typeof(tag) !== 'number')
+    tag = ASN1.Integer;
+
+  var sz = 4;
+
+  while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000 >> 0)) &&
+         (sz > 1)) {
+    sz--;
+    i <<= 8;
+  }
+
+  if (sz > 4)
+    throw new InvalidAsn1Error('BER ints cannot be > 0xffffffff');
+
+  this._ensure(2 + sz);
+  this._buf[this._offset++] = tag;
+  this._buf[this._offset++] = sz;
+
+  while (sz-- > 0) {
+    this._buf[this._offset++] = ((i & 0xff000000) >>> 24);
+    i <<= 8;
+  }
+
+};
+
+
+Writer.prototype.writeNull = function() {
+  this.writeByte(ASN1.Null);
+  this.writeByte(0x00);
+};
+
+
+Writer.prototype.writeEnumeration = function(i, tag) {
+  if (typeof(i) !== 'number')
+    throw new TypeError('argument must be a Number');
+  if (typeof(tag) !== 'number')
+    tag = ASN1.Enumeration;
+
+  return this.writeInt(i, tag);
+};
+
+
+Writer.prototype.writeBoolean = function(b, tag) {
+  if (typeof(b) !== 'boolean')
+    throw new TypeError('argument must be a Boolean');
+  if (typeof(tag) !== 'number')
+    tag = ASN1.Boolean;
+
+  this._ensure(3);
+  this._buf[this._offset++] = tag;
+  this._buf[this._offset++] = 0x01;
+  this._buf[this._offset++] = b ? 0xff : 0x00;
+};
+
+
+Writer.prototype.writeString = function(s, tag) {
+  if (typeof(s) !== 'string')
+    throw new TypeError('argument must be a string (was: ' + typeof(s) + ')');
+  if (typeof(tag) !== 'number')
+    tag = ASN1.OctetString;
+
+  var len = Buffer.byteLength(s);
+  this.writeByte(tag);
+  this.writeLength(len);
+  if (len) {
+    this._ensure(len);
+    this._buf.write(s, this._offset);
+    this._offset += len;
+  }
+};
+
+
+Writer.prototype.writeBuffer = function(buf, tag) {
+  if (typeof(tag) !== 'number')
+    throw new TypeError('tag must be a number');
+  if (!Buffer.isBuffer(buf))
+    throw new TypeError('argument must be a buffer');
+
+  this.writeByte(tag);
+  this.writeLength(buf.length);
+  this._ensure(buf.length);
+  buf.copy(this._buf, this._offset, 0, buf.length);
+  this._offset += buf.length;
+};
+
+
+Writer.prototype.writeStringArray = function(strings) {
+  if ((!strings instanceof Array))
+    throw new TypeError('argument must be an Array[String]');
+
+  var self = this;
+  strings.forEach(function(s) {
+    self.writeString(s);
+  });
+};
+
+// This is really to solve DER cases, but whatever for now
+Writer.prototype.writeOID = function(s, tag) {
+  if (typeof(s) !== 'string')
+    throw new TypeError('argument must be a string');
+  if (typeof(tag) !== 'number')
+    tag = ASN1.OID;
+
+  if (!/^([0-9]+\.){3,}[0-9]+$/.test(s))
+    throw new Error('argument is not a valid OID string');
+
+  function encodeOctet(bytes, octet) {
+    if (octet < 128) {
+        bytes.push(octet);
+    } else if (octet < 16384) {
+        bytes.push((octet >>> 7) | 0x80);
+        bytes.push(octet & 0x7F);
+    } else if (octet < 2097152) {
+      bytes.push((octet >>> 14) | 0x80);
+      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
+      bytes.push(octet & 0x7F);
+    } else if (octet < 268435456) {
+      bytes.push((octet >>> 21) | 0x80);
+      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
+      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
+      bytes.push(octet & 0x7F);
+    } else {
+      bytes.push(((octet >>> 28) | 0x80) & 0xFF);
+      bytes.push(((octet >>> 21) | 0x80) & 0xFF);
+      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
+      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
+      bytes.push(octet & 0x7F);
+    }
+  }
+
+  var tmp = s.split('.');
+  var bytes = [];
+  bytes.push(parseInt(tmp[0], 10) * 40 + parseInt(tmp[1], 10));
+  tmp.slice(2).forEach(function(b) {
+    encodeOctet(bytes, parseInt(b, 10));
+  });
+
+  var self = this;
+  this._ensure(2 + bytes.length);
+  this.writeByte(tag);
+  this.writeLength(bytes.length);
+  bytes.forEach(function(b) {
+    self.writeByte(b);
+  });
+};
+
+
+Writer.prototype.writeLength = function(len) {
+  if (typeof(len) !== 'number')
+    throw new TypeError('argument must be a Number');
+
+  this._ensure(4);
+
+  if (len <= 0x7f) {
+    this._buf[this._offset++] = len;
+  } else if (len <= 0xff) {
+    this._buf[this._offset++] = 0x81;
+    this._buf[this._offset++] = len;
+  } else if (len <= 0xffff) {
+    this._buf[this._offset++] = 0x82;
+    this._buf[this._offset++] = len >> 8;
+    this._buf[this._offset++] = len;
+  } else if (len <= 0xffffff) {
+    this._buf[this._offset++] = 0x83;
+    this._buf[this._offset++] = len >> 16;
+    this._buf[this._offset++] = len >> 8;
+    this._buf[this._offset++] = len;
+  } else {
+    throw new InvalidAsn1ERror('Length too long (> 4 bytes)');
+  }
+};
+
+Writer.prototype.startSequence = function(tag) {
+  if (typeof(tag) !== 'number')
+    tag = ASN1.Sequence | ASN1.Constructor;
+
+  this.writeByte(tag);
+  this._seq.push(this._offset);
+  this._ensure(3);
+  this._offset += 3;
+};
+
+
+Writer.prototype.endSequence = function() {
+  var seq = this._seq.pop();
+  var start = seq + 3;
+  var len = this._offset - start;
+
+  if (len <= 0x7f) {
+    this._shift(start, len, -2);
+    this._buf[seq] = len;
+  } else if (len <= 0xff) {
+    this._shift(start, len, -1);
+    this._buf[seq] = 0x81;
+    this._buf[seq + 1] = len;
+  } else if (len <= 0xffff) {
+    this._buf[seq] = 0x82;
+    this._buf[seq + 1] = len >> 8;
+    this._buf[seq + 2] = len;
+  } else if (len <= 0xffffff) {
+    this._shift(start, len, 1);
+    this._buf[seq] = 0x83;
+    this._buf[seq + 1] = len >> 16;
+    this._buf[seq + 2] = len >> 8;
+    this._buf[seq + 3] = len;
+  } else {
+    throw new InvalidAsn1Error('Sequence too long');
+  }
+};
+
+
+Writer.prototype._shift = function(start, len, shift) {
+  assert.ok(start !== undefined);
+  assert.ok(len !== undefined);
+  assert.ok(shift);
+
+  this._buf.copy(this._buf, start + shift, start, start + len);
+  this._offset += shift;
+};
+
+Writer.prototype._ensure = function(len) {
+  assert.ok(len);
+
+  if (this._size - this._offset < len) {
+    var sz = this._size * this._options.growthFactor;
+    if (sz - this._offset < len)
+      sz += len;
+
+    var buf = new Buffer(sz);
+
+    this._buf.copy(buf, 0, 0, this._offset);
+    this._buf = buf;
+    this._size = sz;
+  }
+};
+
+
+
+///--- Exported API
+
+module.exports = Writer;
diff --git a/node.d/node_modules/extend.js b/node.d/node_modules/extend.js
new file mode 100644
index 000000000..0fdd8be22
--- /dev/null
+++ b/node.d/node_modules/extend.js
@@ -0,0 +1,87 @@
+// https://github.com/justmoon/node-extend
+
+'use strict';
+
+var hasOwn = Object.prototype.hasOwnProperty;
+var toStr = Object.prototype.toString;
+
+var isArray = function isArray(arr) {
+	if (typeof Array.isArray === 'function') {
+		return Array.isArray(arr);
+	}
+
+	return toStr.call(arr) === '[object Array]';
+};
+
+var isPlainObject = function isPlainObject(obj) {
+	if (!obj || toStr.call(obj) !== '[object Object]') {
+		return false;
+	}
+
+	var hasOwnConstructor = hasOwn.call(obj, 'constructor');
+	var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf');
+	// Not own constructor property must be Object
+	if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) {
+		return false;
+	}
+
+	// Own properties are enumerated firstly, so to speed up,
+	// if last one is own, then all properties are own.
+	var key;
+	for (key in obj) { /**/ }
+
+	return typeof key === 'undefined' || hasOwn.call(obj, key);
+};
+
+module.exports = function extend() {
+	var options, name, src, copy, copyIsArray, clone;
+	var target = arguments[0];
+	var i = 1;
+	var length = arguments.length;
+	var deep = false;
+
+	// Handle a deep copy situation
+	if (typeof target === 'boolean') {
+		deep = target;
+		target = arguments[1] || {};
+		// skip the boolean and the target
+		i = 2;
+	} else if ((typeof target !== 'object' && typeof target !== 'function') || target == null) {
+		target = {};
+	}
+
+	for (; i < length; ++i) {
+		options = arguments[i];
+		// Only deal with non-null/undefined values
+		if (options != null) {
+			// Extend the base object
+			for (name in options) {
+				src = target[name];
+				copy = options[name];
+
+				// Prevent never-ending loop
+				if (target !== copy) {
+					// Recurse if we're merging plain objects or arrays
+					if (deep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) {
+						if (copyIsArray) {
+							copyIsArray = false;
+							clone = src && isArray(src) ? src : [];
+						} else {
+							clone = src && isPlainObject(src) ? src : {};
+						}
+
+						// Never move original objects, clone them
+						target[name] = extend(deep, clone, copy);
+
+					// Don't bring in undefined values
+					} else if (typeof copy !== 'undefined') {
+						target[name] = copy;
+					}
+				}
+			}
+		}
+	}
+
+	// Return the modified object
+	return target;
+};
diff --git a/node.d/node_modules/net-snmp.js b/node.d/node_modules/net-snmp.js
new file mode 100644
index 000000000..6fbd4e721
--- /dev/null
+++ b/node.d/node_modules/net-snmp.js
@@ -0,0 +1,1466 @@
+
+// Copyright 2013 Stephen Vickers <stephen.vickers.sv@gmail.com>
+
+var ber = require ("asn1").Ber;
+var dgram = require ("dgram");
+var events = require ("events");
+var util = require ("util");
+
+/*****************************************************************************
+ ** Constants
+ **/
+
+function _expandConstantObject (object) {
+	var keys = [];
+	for (key in object)
+		keys.push (key);
+	for (var i = 0; i < keys.length; i++)
+		object[object[keys[i]]] = parseInt (keys[i]);
+}
+
+var ErrorStatus = {
+	0: "NoError",
+	1: "TooBig",
+	2: "NoSuchName",
+	3: "BadValue",
+	4: "ReadOnly",
+	5: "GeneralError",
+	6: "NoAccess",
+	7: "WrongType",
+	8: "WrongLength",
+	9: "WrongEncoding",
+	10: "WrongValue",
+	11: "NoCreation",
+	12: "InconsistentValue",
+	13: "ResourceUnavailable",
+	14: "CommitFailed",
+	15: "UndoFailed",
+	16: "AuthorizationError",
+	17: "NotWritable",
+	18: "InconsistentName"
+};
+
+_expandConstantObject (ErrorStatus);
+
+var ObjectType = {
+	1: "Boolean",
+	2: "Integer",
+	4: "OctetString",
+	5: "Null",
+	6: "OID",
+	64: "IpAddress",
+	65: "Counter",
+	66: "Gauge",
+	67: "TimeTicks",
+	68: "Opaque",
+	70: "Counter64",
+	128: "NoSuchObject",
+	129: "NoSuchInstance",
+	130: "EndOfMibView"
+};
+
+_expandConstantObject (ObjectType);
+
+ObjectType.Integer32 = ObjectType.Integer;
+ObjectType.Counter32 = ObjectType.Counter;
+ObjectType.Gauge32 = ObjectType.Gauge;
+ObjectType.Unsigned32 = ObjectType.Gauge32;
+
+var PduType = {
+	160: "GetRequest",
+	161: "GetNextRequest",
+	162: "GetResponse",
+	163: "SetRequest",
+	164: "Trap",
+	165: "GetBulkRequest",
+	166: "InformRequest",
+	167: "TrapV2",
+	168: "Report"
+};
+
+_expandConstantObject (PduType);
+
+var TrapType = {
+	0: "ColdStart",
+	1: "WarmStart",
+	2: "LinkDown",
+	3: "LinkUp",
+	4: "AuthenticationFailure",
+	5: "EgpNeighborLoss",
+	6: "EnterpriseSpecific"
+};
+
+_expandConstantObject (TrapType);
+
+var Version1 = 0;
+var Version2c = 1;
+
+/*****************************************************************************
+ ** Exception class definitions
+ **/
+
+function ResponseInvalidError (message) {
+	this.name = "ResponseInvalidError";
+	this.message = message;
+	Error.captureStackTrace(this, ResponseInvalidError);
+}
+util.inherits (ResponseInvalidError, Error);
+
+function RequestInvalidError (message) {
+	this.name = "RequestInvalidError";
+	this.message = message;
+	Error.captureStackTrace(this, RequestInvalidError);
+}
+util.inherits (RequestInvalidError, Error);
+
+function RequestFailedError (message, status) {
+	this.name = "RequestFailedError";
+	this.message = message;
+	this.status = status;
+	Error.captureStackTrace(this, RequestFailedError);
+}
+util.inherits (RequestFailedError, Error);
+
+function RequestTimedOutError (message) {
+	this.name = "RequestTimedOutError";
+	this.message = message;
+	Error.captureStackTrace(this, RequestTimedOutError);
+}
+util.inherits (RequestTimedOutError, Error);
+
+/*****************************************************************************
+ ** OID and varbind helper functions
+ **/
+
+function isVarbindError (varbind) {
+	if (varbind.type == ObjectType.NoSuchObject
+			|| varbind.type == ObjectType.NoSuchInstance
+			|| varbind.type == ObjectType.EndOfMibView)
+		return true;
+	else
+		return false;
+}
+
+function varbindError (varbind) {
+	return (ObjectType[varbind.type] || "NotAnError") + ": " + varbind.oid;
+}
+
+function oidFollowsOid (oidString, nextString) {
+	var oid = {str: oidString, len: oidString.length, idx: 0};
+	var next = {str: nextString, len: nextString.length, idx: 0};
+	var dotCharCode = ".".charCodeAt (0);
+
+	function getNumber (item) {
+		var n = 0;
+		if (item.idx >= item.len)
+			return null;
+		while (item.idx < item.len) {
+			var charCode = item.str.charCodeAt (item.idx++);
+			if (charCode == dotCharCode)
+				return n;
+			n = (n ? (n * 10) : n) + (charCode - 48);
+		}
+		return n;
+	}
+
+	while (1) {
+		var oidNumber = getNumber (oid);
+		var nextNumber = getNumber (next);
+
+		if (oidNumber !== null) {
+			if (nextNumber !== null) {
+				if (nextNumber > oidNumber) {
+					return true;
+				} else if (nextNumber < oidNumber) {
+					return false;
+				}
+			} else {
+				return true;
+			}
+		} else {
+			return true;
+		}
+	}
+}
+
+function oidInSubtree (oidString, nextString) {
+	var oid = oidString.split (".");
+	var next = nextString.split (".");
+
+	if (oid.length > next.length)
+		return false;
+
+	for (var i = 0; i < oid.length; i++) {
+		if (next[i] != oid[i])
+			return false;
+	}
+
+	return true;
+}
+
+/**
+ ** Some SNMP agents produce integers on the wire such as 00 ff ff ff ff.
+ ** The ASN.1 BER parser we use throws an error when parsing this, which we
+ ** believe is correct.  So, we decided not to bother the "asn1" developer(s)
+ ** with this, instead opting to work around it here.
+ **
+ ** If an integer is 5 bytes in length we check if the first byte is 0, and if so
+ ** simply drop it and parse it like it was a 4 byte integer, otherwise throw
+ ** an error since the integer is too large.
+ **/
+
+function readInt (buffer) {
+	return readUint (buffer, true);
+}
+
+function readUint (buffer, isSigned) {
+	buffer.readByte ();
+	var length = buffer.readByte ();
+
+	if (length > 5) {
+		 throw new RangeError ("Integer too long '" + length + "'");
+	} else if (length == 5) {
+		if (buffer.readByte () !== 0)
+			throw new RangeError ("Integer too long '" + length + "'");
+		length = 4;
+	}
+
+	value = 0, signedBitSet = false;
+	
+	for (var i = 0; i < length; i++) {
+		value *= 256;
+		value += buffer.readByte ();
+
+		if (isSigned && i <= 0) {
+			if ((value & 0x80) == 0x80)
+				signedBitSet = true;
+		}
+	}
+	
+	if (signedBitSet)
+		value -= (1 << (i * 8));
+
+	return value;
+}
+
+function readUint64 (buffer) {
+	var value = buffer.readString (ObjectType.Counter64, true);
+
+	if (value.length > 8)
+		throw new RequestInvalidError ("64 bit unsigned integer too long '"
+				+ value.length + "'")
+
+	return value;
+}
+
+function readVarbinds (buffer, varbinds) {
+	buffer.readSequence ();
+
+	while (1) {
+		buffer.readSequence ();
+		var oid = buffer.readOID ();
+		var type = buffer.peek ();
+
+		if (type == null)
+			break;
+
+		var value;
+
+		if (type == ObjectType.Boolean) {
+			value = buffer.readBoolean ();
+		} else if (type == ObjectType.Integer) {
+			value = readInt (buffer);
+		} else if (type == ObjectType.OctetString) {
+			value = buffer.readString (null, true);
+		} else if (type == ObjectType.Null) {
+			buffer.readByte ();
+			buffer.readByte ();
+			value = null;
+		} else if (type == ObjectType.OID) {
+			value = buffer.readOID ();
+		} else if (type == ObjectType.IpAddress) {
+			var bytes = buffer.readString (ObjectType.IpAddress, true);
+			if (bytes.length != 4)
+				throw new ResponseInvalidError ("Length '" + bytes.length
+						+ "' of IP address '" + bytes.toString ("hex")
+						+ "' is not 4");
+			value = bytes[0] + "." + bytes[1] + "." + bytes[2] + "." + bytes[3];
+		} else if (type == ObjectType.Counter) {
+			value = readUint (buffer);
+		} else if (type == ObjectType.Gauge) {
+			value = readUint (buffer);
+		} else if (type == ObjectType.TimeTicks) {
+			value = readUint (buffer);
+		} else if (type == ObjectType.Opaque) {
+			value = buffer.readString (ObjectType.Opaque, true);
+		} else if (type == ObjectType.Counter64) {
+			value = readUint64 (buffer);
+		} else if (type == ObjectType.NoSuchObject) {
+			buffer.readByte ();
+			buffer.readByte ();
+			value = null;
+		} else if (type == ObjectType.NoSuchInstance) {
+			buffer.readByte ();
+			buffer.readByte ();
+			value = null;
+		} else if (type == ObjectType.EndOfMibView) {
+			buffer.readByte ();
+			buffer.readByte ();
+			value = null;
+		} else {
+			throw new ResponseInvalidError ("Unknown type '" + type
+					+ "' in response");
+		}
+
+		varbinds.push ({
+			oid: oid,
+			type: type,
+			value: value
+		});
+	}
+}
+
+function writeUint (buffer, type, value) {
+	var b = new Buffer (4);
+	b.writeUInt32BE (value, 0);
+	buffer.writeBuffer (b, type);
+}
+
+function writeUint64 (buffer, value) {
+	if (value.length > 8)
+		throw new RequestInvalidError ("64 bit unsigned integer too long '"
+				+ value.length + "'")
+	buffer.writeBuffer (value, ObjectType.Counter64);
+}
+
+function writeVarbinds (buffer, varbinds) {
+	buffer.startSequence ();
+	for (var i = 0; i < varbinds.length; i++) {
+		buffer.startSequence ();
+		buffer.writeOID (varbinds[i].oid);
+
+		if (varbinds[i].type && varbinds[i].hasOwnProperty("value")) {
+			var type = varbinds[i].type;
+			var value = varbinds[i].value;
+
+			if (type == ObjectType.Boolean) {
+				buffer.writeBoolean (value ? true : false);
+			} else if (type == ObjectType.Integer) { // also Integer32
+				buffer.writeInt (value);
+			} else if (type == ObjectType.OctetString) {
+				if (typeof value == "string")
+					buffer.writeString (value);
+				else
+					buffer.writeBuffer (value, ObjectType.OctetString);
+			} else if (type == ObjectType.Null) {
+				buffer.writeNull ();
+			} else if (type == ObjectType.OID) {
+				buffer.writeOID (value);
+			} else if (type == ObjectType.IpAddress) {
+				var bytes = value.split (".");
+				if (bytes.length != 4)
+					throw new RequestInvalidError ("Invalid IP address '"
+							+ value + "'");
+				buffer.writeBuffer (new Buffer (bytes), 64);
+			} else if (type == ObjectType.Counter) { // also Counter32
+				writeUint (buffer, ObjectType.Counter, value);
+			} else if (type == ObjectType.Gauge) { // also Gauge32 & Unsigned32
+				writeUint (buffer, ObjectType.Gauge, value);
+			} else if (type == ObjectType.TimeTicks) {
+				writeUint (buffer, ObjectType.TimeTicks, value);
+			} else if (type == ObjectType.Opaque) {
+				buffer.writeBuffer (value, ObjectType.Opaque);
+			} else if (type == ObjectType.Counter64) {
+				writeUint64 (buffer, value);
+			} else {
+				throw new RequestInvalidError ("Unknown type '" + type
+						+ "' in request");
+			}
+		} else {
+			buffer.writeNull ();
+		}
+
+		buffer.endSequence ();
+	};
+	buffer.endSequence ();
+}
+
+/*****************************************************************************
+ ** PDU class definitions
+ **/
+
+var SimplePdu = function (id, varbinds, options) {
+	this.id = id;
+	this.varbinds = varbinds;
+	this.options = options || {};
+};
+
+SimplePdu.prototype.toBuffer = function (buffer) {
+	buffer.startSequence (this.type);
+
+	buffer.writeInt (this.id);
+	buffer.writeInt ((this.type == PduType.GetBulkRequest)
+			? (this.options.nonRepeaters || 0)
+			: 0);
+	buffer.writeInt ((this.type == PduType.GetBulkRequest)
+			? (this.options.maxRepetitions || 0)
+			: 0);
+
+	writeVarbinds (buffer, this.varbinds);
+
+	buffer.endSequence ();
+};
+
+var GetBulkRequestPdu = function () {
+	this.type = PduType.GetBulkRequest;
+	GetBulkRequestPdu.super_.apply (this, arguments);
+};
+
+util.inherits (GetBulkRequestPdu, SimplePdu);
+
+var GetNextRequestPdu = function () {
+	this.type = PduType.GetNextRequest;
+	GetNextRequestPdu.super_.apply (this, arguments);
+};
+
+util.inherits (GetNextRequestPdu, SimplePdu);
+
+var GetResponsePdu = function (buffer) {
+	this.type = PduType.GetResponse;
+
+	buffer.readSequence (this.type);
+
+	this.id = buffer.readInt ();
+
+	this.errorStatus = buffer.readInt ();
+	this.errorIndex = buffer.readInt ();
+
+	this.varbinds = [];
+
+	readVarbinds (buffer, this.varbinds);
+};
+
+var GetRequestPdu = function () {
+	this.type = PduType.GetRequest;
+	GetRequestPdu.super_.apply (this, arguments);
+};
+
+util.inherits (GetRequestPdu, SimplePdu);
+
+var InformRequestPdu = function () {
+	this.type = PduType.InformRequest;
+	InformRequestPdu.super_.apply (this, arguments);
+};
+
+util.inherits (InformRequestPdu, SimplePdu);
+
+var SetRequestPdu = function () {
+	this.type = PduType.SetRequest;
+	SetRequestPdu.super_.apply (this, arguments);
+};
+
+util.inherits (SetRequestPdu, SimplePdu);
+
+var TrapPdu = function (typeOrOid, varbinds, options) {
+	this.type = PduType.Trap;
+
+	this.agentAddr = options.agentAddr || "127.0.0.1";
+	this.upTime = options.upTime;
+
+	if (typeof typeOrOid == "string") {
+		this.generic = TrapType.EnterpriseSpecific;
+		this.specific = parseInt (typeOrOid.match (/\.(\d+)$/)[1]);
+		this.enterprise = typeOrOid.replace (/\.(\d+)$/, "");
+	} else {
+		this.generic = typeOrOid;
+		this.specific = 0;
+		this.enterprise = "1.3.6.1.4.1";
+	}
+
+	this.varbinds = varbinds;
+};
+
+TrapPdu.prototype.toBuffer = function (buffer) {
+	buffer.startSequence (this.type);
+
+	buffer.writeOID (this.enterprise);
+	buffer.writeBuffer (new Buffer (this.agentAddr.split (".")),
+			ObjectType.IpAddress);
+	buffer.writeInt (this.generic);
+	buffer.writeInt (this.specific);
+	writeUint (buffer, ObjectType.TimeTicks,
+			this.upTime || Math.floor (process.uptime () * 100));
+
+	writeVarbinds (buffer, this.varbinds);
+
+	buffer.endSequence ();
+};
+
+var TrapV2Pdu = function () {
+	this.type = PduType.TrapV2;
+	TrapV2Pdu.super_.apply (this, arguments);
+};
+
+util.inherits (TrapV2Pdu, SimplePdu);
+
+/*****************************************************************************
+ ** Message class definitions
+ **/
+
+var RequestMessage = function (version, community, pdu) {
+	this.version = version;
+	this.community = community;
+	this.pdu = pdu;
+};
+
+RequestMessage.prototype.toBuffer = function () {
+	if (this.buffer)
+		return this.buffer;
+
+	var writer = new ber.Writer ();
+
+	writer.startSequence ();
+
+	writer.writeInt (this.version);
+	writer.writeString (this.community);
+
+	this.pdu.toBuffer (writer);
+
+	writer.endSequence ();
+
+	this.buffer = writer.buffer;
+
+	return this.buffer;
+};
+
+var ResponseMessage = function (buffer) {
+	var reader = new ber.Reader (buffer);
+
+	reader.readSequence ();
+
+	this.version = reader.readInt ();
+	this.community = reader.readString ();
+
+	var type = reader.peek ();
+
+	if (type == PduType.GetResponse) {
+		this.pdu = new GetResponsePdu (reader);
+	} else {
+		throw new ResponseInvalidError ("Unknown PDU type '" + type
+				+ "' in response");
+	}
+}
+
+/*****************************************************************************
+ ** Session class definition
+ **/
+
+var Session = function (target, community, options) {
+	this.target = target || "127.0.0.1";
+	this.community = community || "public";
+
+	this.version = (options && options.version)
+			? options.version
+			: Version1;
+
+	this.transport = (options && options.transport)
+			? options.transport
+			: "udp4";
+	this.port = (options && options.port )
+			? options.port
+			: 161;
+	this.trapPort = (options && options.trapPort )
+			? options.trapPort
+			: 162;
+
+	this.retries = (options && (options.retries || options.retries == 0))
+			? options.retries
+			: 1;
+	this.timeout = (options && options.timeout)
+			? options.timeout
+			: 5000;
+
+	this.sourceAddress = (options && options.sourceAddress )
+			? options.sourceAddress
+			: undefined;
+	this.sourcePort = (options && options.sourcePort )
+			? parseInt(options.sourcePort)
+			: undefined;
+
+	this.reqs = {};
+	this.reqCount = 0;
+
+	this.dgram = dgram.createSocket (this.transport);
+	this.dgram.unref();
+	
+	var me = this;
+	this.dgram.on ("message", me.onMsg.bind (me));
+	this.dgram.on ("close", me.onClose.bind (me));
+	this.dgram.on ("error", me.onError.bind (me));
+
+	if (this.sourceAddress || this.sourcePort)
+		req.dgram.bind (this.sourcePort, this.sourceAddress);
+};
+
+util.inherits (Session, events.EventEmitter);
+
+Session.prototype.close = function () {
+	this.dgram.close ();
+	return this;
+}
+
+Session.prototype.cancelRequests = function (error) {
+	for (id in this.reqs) {
+		var req = this.reqs[id];
+		this.unregisterRequest (req.id);
+		req.responseCb (error);
+	}
+}
+
+function _generateId () {
+	return Math.floor (Math.random () + Math.random () * 10000000)
+}
+
+Session.prototype.get = function (oids, responseCb) {
+	function feedCb (req, message) {
+		var pdu = message.pdu;
+		var varbinds = [];
+
+		if (req.message.pdu.varbinds.length != pdu.varbinds.length) {
+			req.responseCb (new ResponseInvalidError ("Requested OIDs do not "
+					+ "match response OIDs"));
+		} else {
+			for (var i = 0; i < req.message.pdu.varbinds.length; i++) {
+				if (req.message.pdu.varbinds[i].oid != pdu.varbinds[i].oid) {
+					req.responseCb (new ResponseInvalidError ("OID '"
+							+ req.message.pdu.varbinds[i].oid
+							+ "' in request at positiion '" + i + "' does not "
+							+ "match OID '" + pdu.varbinds[i].oid + "' in response "
+							+ "at position '" + i + "'"));
+					return;
+				} else {
+					varbinds.push (pdu.varbinds[i]);
+				}
+			}
+
+			req.responseCb (null, varbinds);
+		}
+	};
+
+	var pduVarbinds = [];
+
+	for (var i = 0; i < oids.length; i++) {
+		var varbind = {
+			oid: oids[i]
+		};
+		pduVarbinds.push (varbind);
+	}
+
+	this.simpleGet (GetRequestPdu, feedCb, pduVarbinds, responseCb);
+
+	return this;
+};
+
+Session.prototype.getBulk = function () {
+	var oids, nonRepeaters, maxRepetitions, responseCb;
+
+	if (arguments.length >= 4) {
+		oids = arguments[0];
+		nonRepeaters = arguments[1];
+		maxRepetitions = arguments[2];
+		responseCb = arguments[3];
+	} else if (arguments.length >= 3) {
+		oids = arguments[0];
+		nonRepeaters = arguments[1];
+		maxRepetitions = 10;
+		responseCb = arguments[2];
+	} else {
+		oids = arguments[0];
+		nonRepeaters = 0;
+		maxRepetitions = 10;
+		responseCb = arguments[1];
+	}
+
+	function feedCb (req, message) {
+		var pdu = message.pdu;
+		var varbinds = [];
+		var i = 0;
+
+		// first walk through and grab non-repeaters
+		if (pdu.varbinds.length < nonRepeaters) {
+			req.responseCb (new ResponseInvalidError ("Varbind count in "
+					+ "response '" + pdu.varbinds.length + "' is less than "
+					+ "non-repeaters '" + nonRepeaters + "' in request"));
+		} else {
+			for ( ; i < nonRepeaters; i++) {
+				if (isVarbindError (pdu.varbinds[i])) {
+					varbinds.push (pdu.varbinds[i]);
+				} else if (! oidFollowsOid (req.message.pdu.varbinds[i].oid,
+						pdu.varbinds[i].oid)) {
+					req.responseCb (new ResponseInvalidError ("OID '"
+							+ req.message.pdu.varbinds[i].oid + "' in request at "
+							+ "positiion '" + i + "' does not precede "
+							+ "OID '" + pdu.varbinds[i].oid + "' in response "
+							+ "at position '" + i + "'"));
+					return;
+				} else {
+					varbinds.push (pdu.varbinds[i]);
+				}
+			}
+		}
+
+		var repeaters = req.message.pdu.varbinds.length - nonRepeaters;
+
+		// secondly walk through and grab repeaters
+		if (pdu.varbinds.length % (repeaters)) {
+			req.responseCb (new ResponseInvalidError ("Varbind count in "
+					+ "response '" + pdu.varbinds.length + "' is not a "
+					+ "multiple of repeaters '" + repeaters
+					+ "' plus non-repeaters '" + nonRepeaters + "' in request"));
+		} else {
+			while (i < pdu.varbinds.length) {
+				for (var j = 0; j < repeaters; j++, i++) {
+					var reqIndex = nonRepeaters + j;
+					var respIndex = i;
+
+					if (isVarbindError (pdu.varbinds[respIndex])) {
+						if (! varbinds[reqIndex])
+							varbinds[reqIndex] = [];
+						varbinds[reqIndex].push (pdu.varbinds[respIndex]);
+					} else if (! oidFollowsOid (
+							req.message.pdu.varbinds[reqIndex].oid,
+							pdu.varbinds[respIndex].oid)) {
+						req.responseCb (new ResponseInvalidError ("OID '"
+								+ req.message.pdu.varbinds[reqIndex].oid
+								+ "' in request at positiion '" + (reqIndex)
+								+ "' does not precede OID '"
+								+ pdu.varbinds[respIndex].oid
+								+ "' in response at position '" + (respIndex) + "'"));
+						return;
+					} else {
+						if (! varbinds[reqIndex])
+							varbinds[reqIndex] = [];
+						varbinds[reqIndex].push (pdu.varbinds[respIndex]);
+					}
+				}
+			}
+		}
+
+		req.responseCb (null, varbinds);
+	};
+
+	var pduVarbinds = [];
+
+	for (var i = 0; i < oids.length; i++) {
+		var varbind = {
+			oid: oids[i]
+		};
+		pduVarbinds.push (varbind);
+	}
+
+	var options = {
+		nonRepeaters: nonRepeaters,
+		maxRepetitions: maxRepetitions
+	};
+
+	this.simpleGet (GetBulkRequestPdu, feedCb, pduVarbinds, responseCb,
+			options);
+
+	return this;
+};
+
+Session.prototype.getNext = function (oids, responseCb) {
+	function feedCb (req, message) {
+		var pdu = message.pdu;
+		var varbinds = [];
+
+		if (req.message.pdu.varbinds.length != pdu.varbinds.length) {
+			req.responseCb (new ResponseInvalidError ("Requested OIDs do not "
+					+ "match response OIDs"));
+		} else {
+			for (var i = 0; i < req.message.pdu.varbinds.length; i++) {
+				if (isVarbindError (pdu.varbinds[i])) {
+					varbinds.push (pdu.varbinds[i]);
+				} else if (! oidFollowsOid (req.message.pdu.varbinds[i].oid,
+						pdu.varbinds[i].oid)) {
+					req.responseCb (new ResponseInvalidError ("OID '"
+							+ req.message.pdu.varbinds[i].oid + "' in request at "
+							+ "positiion '" + i + "' does not precede "
+							+ "OID '" + pdu.varbinds[i].oid + "' in response "
+							+ "at position '" + i + "'"));
+					return;
+				} else {
+					varbinds.push (pdu.varbinds[i]);
+				}
+			}
+
+			req.responseCb (null, varbinds);
+		}
+	};
+
+	var pduVarbinds = [];
+
+	for (var i = 0; i < oids.length; i++) {
+		var varbind = {
+			oid: oids[i]
+		};
+		pduVarbinds.push (varbind);
+	}
+
+	this.simpleGet (GetNextRequestPdu, feedCb, pduVarbinds, responseCb);
+
+	return this;
+};
+
+Session.prototype.inform = function () {
+	var typeOrOid = arguments[0];;
+	var varbinds, options = {}, responseCb;
+
+	/**
+	 ** Support the following signatures:
+	 ** 
+	 **    typeOrOid, varbinds, options, callback
+	 **    typeOrOid, varbinds, callback
+	 **    typeOrOid, options, callback
+	 **    typeOrOid, callback
+	 **/
+	if (arguments.length >= 4) {
+		varbinds = arguments[1];
+		options = arguments[2];
+		responseCb = arguments[3];
+	} else if (arguments.length >= 3) {
+		if (arguments[1].constructor != Array) {
+			varbinds = [];
+			options = arguments[1];
+			responseCb = arguments[2];
+		} else {
+			varbinds = arguments[1];
+			responseCb = arguments[2];
+		}
+	} else {
+		varbinds = [];
+		responseCb = arguments[1];
+	}
+
+	function feedCb (req, message) {
+		var pdu = message.pdu;
+		var varbinds = [];
+
+		if (req.message.pdu.varbinds.length != pdu.varbinds.length) {
+			req.responseCb (new ResponseInvalidError ("Inform OIDs do not "
+					+ "match response OIDs"));
+		} else {
+			for (var i = 0; i < req.message.pdu.varbinds.length; i++) {
+				if (req.message.pdu.varbinds[i].oid != pdu.varbinds[i].oid) {
+					req.responseCb (new ResponseInvalidError ("OID '"
+							+ req.message.pdu.varbinds[i].oid
+							+ "' in inform at positiion '" + i + "' does not "
+							+ "match OID '" + pdu.varbinds[i].oid + "' in response "
+							+ "at position '" + i + "'"));
+					return;
+				} else {
+					varbinds.push (pdu.varbinds[i]);
+				}
+			}
+
+			req.responseCb (null, varbinds);
+		}
+	};
+
+	if (typeof typeOrOid != "string")
+		typeOrOid = "1.3.6.1.6.3.1.1.5." + (typeOrOid + 1);
+
+	var pduVarbinds = [
+		{
+			oid: "1.3.6.1.2.1.1.3.0",
+			type: ObjectType.TimeTicks,
+			value: options.upTime || Math.floor (process.uptime () * 100)
+		},
+		{
+			oid: "1.3.6.1.6.3.1.1.4.1.0",
+			type: ObjectType.OID,
+			value: typeOrOid
+		}
+	];
+
+	for (var i = 0; i < varbinds.length; i++) {
+		var varbind = {
+			oid: varbinds[i].oid,
+			type: varbinds[i].type,
+			value: varbinds[i].value
+		};
+		pduVarbinds.push (varbind);
+	}
+	
+	options.port = this.trapPort;
+
+	this.simpleGet (InformRequestPdu, feedCb, pduVarbinds, responseCb, options);
+
+	return this;
+};
+
+Session.prototype.onClose = function () {
+	this.cancelRequests (new Error ("Socket forcibly closed"));
+	this.emit ("close");
+};
+
+Session.prototype.onError = function (error) {
+	this.emit (error);
+};
+
+Session.prototype.onMsg = function (buffer, remote) {
+	try {
+		var message = new ResponseMessage (buffer);
+
+		var req = this.unregisterRequest (message.pdu.id);
+		if (! req)
+			return;
+
+		try {
+			if (message.version != req.message.version) {
+				req.responseCb (new ResponseInvalidError ("Version in request '"
+						+ req.message.version + "' does not match version in "
+						+ "response '" + message.version));
+			} else if (message.community != req.message.community) {
+				req.responseCb (new ResponseInvalidError ("Community '"
+						+ req.message.community + "' in request does not match "
+						+ "community '" + message.community + "' in response"));
+			} else if (message.pdu.type == PduType.GetResponse) {
+				req.onResponse (req, message);
+			} else {
+				req.responseCb (new ResponseInvalidError ("Unknown PDU type '"
+						+ message.pdu.type + "' in response"));
+			}
+		} catch (error) {
+			req.responseCb (error);
+		}
+	} catch (error) {
+		this.emit("error", error);
+	}
+};
+
+Session.prototype.onSimpleGetResponse = function (req, message) {
+	var pdu = message.pdu;
+
+	if (pdu.errorStatus > 0) {
+		var statusString = ErrorStatus[pdu.errorStatus]
+				|| ErrorStatus.GeneralError;
+		var statusCode = ErrorStatus[statusString]
+				|| ErrorStatus[ErrorStatus.GeneralError];
+
+		if (pdu.errorIndex <= 0 || pdu.errorIndex > pdu.varbinds.length) {
+			req.responseCb (new RequestFailedError (statusString, statusCode));
+		} else {
+			var oid = pdu.varbinds[pdu.errorIndex - 1].oid;
+			var error = new RequestFailedError (statusString + ": " + oid,
+					statusCode);
+			req.responseCb (error);
+		}
+	} else {
+		req.feedCb (req, message);
+	}
+};
+
+Session.prototype.registerRequest = function (req) {
+	if (! this.reqs[req.id]) {
+		this.reqs[req.id] = req;
+		if (this.reqCount <= 0)
+			this.dgram.ref();
+		this.reqCount++;
+	}
+	var me = this;
+	req.timer = setTimeout (function () {
+		if (req.retries-- > 0) {
+			me.send (req);
+		} else {
+			me.unregisterRequest (req.id);
+			req.responseCb (new RequestTimedOutError (
+					"Request timed out"));
+		}
+	}, req.timeout);
+};
+
+Session.prototype.send = function (req, noWait) {
+	try {
+		var me = this;
+		
+		var buffer = req.message.toBuffer ();
+
+		this.dgram.send (buffer, 0, buffer.length, req.port, this.target,
+				function (error, bytes) {
+			if (error) {
+				req.responseCb (error);
+			} else {
+				if (noWait) {
+					req.responseCb (null);
+				} else {
+					me.registerRequest (req);
+				}
+			}
+		});
+	} catch (error) {
+		req.responseCb (error);
+	}
+	
+	return this;
+};
+
+Session.prototype.set = function (varbinds, responseCb) {
+	function feedCb (req, message) {
+		var pdu = message.pdu;
+		var varbinds = [];
+
+		if (req.message.pdu.varbinds.length != pdu.varbinds.length) {
+			req.responseCb (new ResponseInvalidError ("Requested OIDs do not "
+					+ "match response OIDs"));
+		} else {
+			for (var i = 0; i < req.message.pdu.varbinds.length; i++) {
+				if (req.message.pdu.varbinds[i].oid != pdu.varbinds[i].oid) {
+					req.responseCb (new ResponseInvalidError ("OID '"
+							+ req.message.pdu.varbinds[i].oid
+							+ "' in request at positiion '" + i + "' does not "
+							+ "match OID '" + pdu.varbinds[i].oid + "' in response "
+							+ "at position '" + i + "'"));
+					return;
+				} else {
+					varbinds.push (pdu.varbinds[i]);
+				}
+			}
+
+			req.responseCb (null, varbinds);
+		}
+	};
+
+	var pduVarbinds = [];
+
+	for (var i = 0; i < varbinds.length; i++) {
+		var varbind = {
+			oid: varbinds[i].oid,
+			type: varbinds[i].type,
+			value: varbinds[i].value
+		};
+		pduVarbinds.push (varbind);
+	}
+
+	this.simpleGet (SetRequestPdu, feedCb, pduVarbinds, responseCb);
+
+	return this;
+};
+
+Session.prototype.simpleGet = function (pduClass, feedCb, varbinds,
+		responseCb, options) {
+	var req = {}
+
+	try {
+		var id = _generateId ();
+		var pdu = new pduClass (id, varbinds, options);
+		var message = new RequestMessage (this.version, this.community, pdu);
+
+		req = {
+			id: id,
+			message: message,
+			responseCb: responseCb,
+			retries: this.retries,
+			timeout: this.timeout,
+			onResponse: this.onSimpleGetResponse,
+			feedCb: feedCb,
+			port: (options && options.port) ? options.port : this.port
+		};
+
+		this.send (req);
+	} catch (error) {
+		if (req.responseCb)
+			req.responseCb (error);
+	}
+};
+
+function subtreeCb (req, varbinds) {
+	var done = 0;
+
+	for (var i = varbinds.length; i > 0; i--) {
+		if (! oidInSubtree (req.baseOid, varbinds[i - 1].oid)) {
+			done = 1;
+			varbinds.pop ();
+		}
+	}
+
+	if (varbinds.length > 0)
+		req.feedCb (varbinds);
+
+	if (done)
+		return true;
+}
+
+Session.prototype.subtree  = function () {
+	var me = this;
+	var oid = arguments[0];
+	var maxRepetitions, feedCb, doneCb;
+
+	if (arguments.length < 4) {
+		maxRepetitions = 20;
+		feedCb = arguments[1];
+		doneCb = arguments[2];
+	} else {
+		maxRepetitions = arguments[1];
+		feedCb = arguments[2];
+		doneCb = arguments[3];
+	}
+
+	var req = {
+		feedCb: feedCb,
+		doneCb: doneCb,
+		maxRepetitions: maxRepetitions,
+		baseOid: oid
+	};
+
+	this.walk (oid, maxRepetitions, subtreeCb.bind (me, req), doneCb);
+
+	return this;
+}
+
+function tableColumnsResponseCb (req, error) {
+	if (error) {
+		req.responseCb (error);
+	} else if (req.error) {
+		req.responseCb (req.error);
+	} else {
+		if (req.columns.length > 0) {
+			var column = req.columns.pop ();
+			var me = this;
+			this.subtree (req.rowOid + column, req.maxRepetitions,
+					tableColumnsFeedCb.bind (me, req),
+					tableColumnsResponseCb.bind (me, req));
+		} else {
+			req.responseCb (null, req.table);
+		}
+	}
+}
+
+function tableColumnsFeedCb (req, varbinds) {
+	for (var i = 0; i < varbinds.length; i++) {
+		if (isVarbindError (varbinds[i])) {
+			req.error = new RequestFailedError (varbindError (varbind[i]));
+			return true;
+		}
+
+		var oid = varbinds[i].oid.replace (req.rowOid, "")
+		if (oid && oid != varbinds[i].oid) {
+			var match = oid.match (/^(\d+)\.(.+)$/);
+			if (match && match[1] > 0) {
+				if (! req.table[match[2]])
+					req.table[match[2]] = {};
+				req.table[match[2]][match[1]] = varbinds[i].value;
+			}
+		}
+	}
+}
+
+Session.prototype.tableColumns = function () {
+	var me = this;
+
+	var oid = arguments[0];
+	var columns = arguments[1];
+	var maxRepetitions, responseCb;
+
+	if (arguments.length < 4) {
+		responseCb = arguments[2];
+		maxRepetitions = 20;
+	} else {
+		maxRepetitions = arguments[2];
+		responseCb = arguments[3];
+	}
+
+	var req = {
+		responseCb: responseCb,
+		maxRepetitions: maxRepetitions,
+		baseOid: oid,
+		rowOid: oid + ".1.",
+		columns: columns.slice(0),
+		table: {}
+	};
+
+	if (req.columns.length > 0) {
+		var column = req.columns.pop ();
+		this.subtree (req.rowOid + column, maxRepetitions,
+				tableColumnsFeedCb.bind (me, req),
+				tableColumnsResponseCb.bind (me, req));
+	}
+
+	return this;
+}
+
+function tableResponseCb (req, error) {
+	if (error)
+		req.responseCb (error);
+	else if (req.error)
+		req.responseCb (req.error);
+	else
+		req.responseCb (null, req.table);
+}
+
+function tableFeedCb (req, varbinds) {
+	for (var i = 0; i < varbinds.length; i++) {
+		if (isVarbindError (varbinds[i])) {
+			req.error = new RequestFailedError (varbindError (varbind[i]));
+			return true;
+		}
+
+		var oid = varbinds[i].oid.replace (req.rowOid, "")
+		if (oid && oid != varbinds[i].oid) {
+			var match = oid.match (/^(\d+)\.(.+)$/);
+			if (match && match[1] > 0) {
+				if (! req.table[match[2]])
+					req.table[match[2]] = {};
+				req.table[match[2]][match[1]] = varbinds[i].value;
+			}
+		}
+	}
+}
+
+Session.prototype.table = function () {
+	var me = this;
+
+	var oid = arguments[0];
+	var maxRepetitions, responseCb;
+
+	if (arguments.length < 3) {
+		responseCb = arguments[1];
+		maxRepetitions = 20;
+	} else {
+		maxRepetitions = arguments[1];
+		responseCb = arguments[2];
+	}
+
+	var req = {
+		responseCb: responseCb,
+		maxRepetitions: maxRepetitions,
+		baseOid: oid,
+		rowOid: oid + ".1.",
+		table: {}
+	};
+
+	this.subtree (oid, maxRepetitions, tableFeedCb.bind (me, req),
+			tableResponseCb.bind (me, req));
+
+	return this;
+}
+
+Session.prototype.trap = function () {
+	var req = {};
+
+	try {
+		var typeOrOid = arguments[0];
+		var varbinds, options = {}, responseCb;
+
+		/**
+		 ** Support the following signatures:
+		 ** 
+		 **    typeOrOid, varbinds, options, callback
+		 **    typeOrOid, varbinds, agentAddr, callback
+		 **    typeOrOid, varbinds, callback
+		 **    typeOrOid, agentAddr, callback
+		 **    typeOrOid, options, callback
+		 **    typeOrOid, callback
+		 **/
+		if (arguments.length >= 4) {
+			varbinds = arguments[1];
+			if (typeof arguments[2] == "string") {
+				options.agentAddr = arguments[2];
+			} else if (arguments[2].constructor != Array) {
+				options = arguments[2];
+			}
+			responseCb = arguments[3];
+		} else if (arguments.length >= 3) {
+			if (typeof arguments[1] == "string") {
+				varbinds = [];
+				options.agentAddr = arguments[1];
+			} else if (arguments[1].constructor != Array) {
+				varbinds = [];
+				options = arguments[1];
+			} else {
+				varbinds = arguments[1];
+				agentAddr = null;
+			}
+			responseCb = arguments[2];
+		} else {
+			varbinds = [];
+			responseCb = arguments[1];
+		}
+
+		var pdu, pduVarbinds = [];
+
+		for (var i = 0; i < varbinds.length; i++) {
+			var varbind = {
+				oid: varbinds[i].oid,
+				type: varbinds[i].type,
+				value: varbinds[i].value
+			};
+			pduVarbinds.push (varbind);
+		}
+		
+		var id = _generateId ();
+
+		if (this.version == Version2c) {
+			if (typeof typeOrOid != "string")
+				typeOrOid = "1.3.6.1.6.3.1.1.5." + (typeOrOid + 1);
+
+			pduVarbinds.unshift (
+				{
+					oid: "1.3.6.1.2.1.1.3.0",
+					type: ObjectType.TimeTicks,
+					value: options.upTime || Math.floor (process.uptime () * 100)
+				},
+				{
+					oid: "1.3.6.1.6.3.1.1.4.1.0",
+					type: ObjectType.OID,
+					value: typeOrOid
+				}
+			);
+
+			pdu = new TrapV2Pdu (id, pduVarbinds, options);
+		} else {
+			pdu = new TrapPdu (typeOrOid, pduVarbinds, options);
+		}
+
+		var message = new RequestMessage (this.version, this.community, pdu);
+
+		req = {
+			id: id,
+			message: message,
+			responseCb: responseCb,
+			port: this.trapPort
+		};
+
+		this.send (req, true);
+	} catch (error) {
+		if (req.responseCb)
+			req.responseCb (error);
+	}
+
+	return this;
+};
+
+Session.prototype.unregisterRequest = function (id) {
+	var req = this.reqs[id];
+	if (req) {
+		delete this.reqs[id];
+		clearTimeout (req.timer);
+		delete req.timer;
+		this.reqCount--;
+		if (this.reqCount <= 0)
+			this.dgram.unref();
+		return req;
+	} else {
+		return null;
+	}
+};
+
+function walkCb (req, error, varbinds) {
+	var done = 0;
+	var oid;
+
+	if (error) {
+		if (error instanceof RequestFailedError) {
+			if (error.status != ErrorStatus.NoSuchName) {
+				req.doneCb (error);
+				return;
+			} else {
+				// signal the version 1 walk code below that it should stop
+				done = 1;
+			}
+		} else {
+			req.doneCb (error);
+			return;
+		}
+	}
+
+	if (this.version == Version2c) {
+		for (var i = varbinds[0].length; i > 0; i--) {
+			if (varbinds[0][i - 1].type == ObjectType.EndOfMibView) {
+				varbinds[0].pop ();
+				done = 1;
+			}
+		}
+		if (req.feedCb (varbinds[0]))
+			done = 1;
+		if (! done)
+			oid = varbinds[0][varbinds[0].length - 1].oid;
+	} else {
+		if (! done) {
+			if (req.feedCb (varbinds)) {
+				done = 1;
+			} else {
+				oid = varbinds[0].oid;
+			}
+		}
+	}
+
+	if (done)
+		req.doneCb (null);
+	else
+		this.walk (oid, req.maxRepetitions, req.feedCb, req.doneCb,
+				req.baseOid);
+}
+
+Session.prototype.walk  = function () {
+	var me = this;
+	var oid = arguments[0];
+	var maxRepetitions, feedCb, doneCb, baseOid;
+
+	if (arguments.length < 4) {
+		maxRepetitions = 20;
+		feedCb = arguments[1];
+		doneCb = arguments[2];
+	} else {
+		maxRepetitions = arguments[1];
+		feedCb = arguments[2];
+		doneCb = arguments[3];
+	}
+
+	var req = {
+		maxRepetitions: maxRepetitions,
+		feedCb: feedCb,
+		doneCb: doneCb
+	};
+
+	if (this.version == Version2c)
+		this.getBulk ([oid], 0, maxRepetitions,
+				walkCb.bind (me, req));
+	else
+		this.getNext ([oid], walkCb.bind (me, req));
+
+	return this;
+}
+
+/*****************************************************************************
+ ** Exports
+ **/
+
+exports.Session = Session;
+
+exports.createSession = function (target, community, version, options) {
+	return new Session (target, community, version, options);
+};
+
+exports.isVarbindError = isVarbindError;
+exports.varbindError = varbindError;
+
+exports.Version1 = Version1;
+exports.Version2c = Version2c;
+
+exports.ErrorStatus = ErrorStatus;
+exports.TrapType = TrapType;
+exports.ObjectType = ObjectType;
+
+exports.ResponseInvalidError = ResponseInvalidError;
+exports.RequestInvalidError = RequestInvalidError;
+exports.RequestFailedError = RequestFailedError;
+exports.RequestTimedOutError = RequestTimedOutError;
+
+/**
+ ** We've added this for testing.
+ **/
+exports.ObjectParser = {
+	readInt: readInt,
+	readUint: readUint
+};
diff --git a/node.d/node_modules/netdata.js b/node.d/node_modules/netdata.js
new file mode 100755
index 000000000..9834534ee
--- /dev/null
+++ b/node.d/node_modules/netdata.js
@@ -0,0 +1,612 @@
+'use strict';
+
+var url = require('url');
+var http = require('http');
+var util = require('util');
+
+/*
+var netdata = require('netdata');
+
+var example_chart = {
+	id: 'id',						// the unique id of the chart
+	name: 'name',					// the name of the chart
+	title: 'title',					// the title of the chart
+	units: 'units',					// the units of the chart dimensions
+	family: 'family',				// the family of the chart
+	context: 'context',				// the context of the chart
+	type: netdata.chartTypes.line,	// the type of the chart
+	priority: 0,					// the priority relative to others in the same family
+	update_every: 1,				// the expected update frequency of the chart
+	dimensions: {
+		'dim1': {
+			id: 'dim1',				// the unique id of the dimension
+			name: 'name',			// the name of the dimension
+			algorithm: netdata.chartAlgorithms.absolute,	// the id of the netdata algorithm
+			multiplier: 1,			// the multiplier
+			divisor: 1,				// the divisor
+			hidden: false,			// is hidden (boolean)
+		},
+		'dim2': {
+			id: 'dim2',				// the unique id of the dimension
+			name: 'name',			// the name of the dimension
+			algorithm: 'absolute',	// the id of the netdata algorithm
+			multiplier: 1,			// the multiplier
+			divisor: 1,				// the divisor
+			hidden: false,			// is hidden (boolean)
+		}
+		// add as many dimensions as needed
+	}
+};
+*/
+
+var netdata = {
+	options: {
+		filename: __filename,
+		DEBUG: false,
+		update_every: 1,
+	},
+
+	chartAlgorithms: {
+		incremental: 'incremental',
+		absolute: 'absolute',
+		percentage_of_absolute_row: 'percentage-of-absolute-row',
+		percentage_of_incremental_row: 'percentage-of-incremental-row'
+	},
+
+	chartTypes: {
+		line: 'line',
+		area: 'area',
+		stacked: 'stacked'
+	},
+
+	services: new Array(),
+	modules_configuring: 0,
+	charts: {},
+
+
+	processors: {
+		http: {
+			name: 'http',
+
+			process: function(service, callback) {
+				if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': making ' + this.name + ' request: ' + netdata.stringify(service.request));
+
+				var req = http.request(service.request, function(response) {
+					if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': got server response...');
+
+					var end = false;
+					var data = '';
+					response.setEncoding('utf8');
+
+					if(response.statusCode !== 200) {
+						if(end === false) {
+							service.error('Got HTTP code ' + response.statusCode + ', failed to get data.');
+							end = true;
+							callback(null);
+						}
+					}
+
+					response.on('data', function(chunk) {
+						if(end === false) data += chunk;
+					});
+
+					response.on('error', function() {
+						if(end === false) {
+							service.error(': Read error, failed to get data.');
+							end = true;
+							callback(null);
+						}
+					});
+
+					response.on('end', function() {
+						if(end === false) {
+							if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': read completed.');
+							end = true;
+							callback(data);
+						}
+					});
+				});
+
+				req.on('error', function(e) {
+					service.error('Failed to make request: ' + netdata.stringify(service.request) + ', message: ' + e.message);
+					callback(null);
+				});
+
+				// write data to request body
+				if(typeof service.postData !== 'undefined' && service.request.method === 'POST') {
+					if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': posting data: ' + service.postData);
+					req.write(service.postData);
+				}
+
+				req.end();
+			}
+		}
+	},
+
+	stringify: function(obj) {
+		return util.inspect(obj, {depth: 10});
+	},
+
+	// show debug info, if debug is enabled
+	debug: function(msg) {
+		if(this.options.DEBUG === true) {
+			var now = new Date();
+			console.error(now.toString() + ': ' + netdata.options.filename + ': DEBUG: ' + ((typeof(msg) === 'object')?netdata.stringify(msg):msg).toString());
+		}
+	},
+
+	// log an error
+	error: function(msg) {
+		var now = new Date();
+		console.error(now.toString() + ': ' + netdata.options.filename + ': ERROR: ' + ((typeof(msg) === 'object')?netdata.stringify(msg):msg).toString());
+	},
+
+	// send data to netdata
+	send: function(msg) {
+		console.log(msg.toString());
+	},
+
+	service: function(service) {
+		if(typeof service === 'undefined')
+			service = {};
+
+		var now = new Date().getTime();
+
+		service._current_chart = null;	// the current chart we work on
+		service._queue = '';			// data to be sent to netdata
+
+		service.error_reported = false;	// error log flood control
+
+		service.added = false;			// added to netdata.services
+		service.enabled = true;
+		service.updates = 0;
+		service.running = false;
+		service.started = 0;
+		service.ended = 0;
+
+		if(typeof service.module === 'undefined') {
+			service.module = { name: 'not-defined-module' };
+			service.error('Attempted to create service without a module.');
+			service.enabled = false;
+		}
+
+		if(typeof service.name === 'undefined') {
+			service.name = 'unnamed@' + service.module.name + '/' + now;
+		}
+
+		if(typeof service.processor === 'undefined')
+			service.processor = netdata.processors.http;
+
+		if(typeof service.update_every === 'undefined')
+			service.update_every = service.module.update_every;
+
+		if(typeof service.update_every === 'undefined')
+			service.update_every = netdata.options.update_every;
+
+		if(service.update_every < netdata.options.update_every)
+			service.update_every = netdata.options.update_every;
+
+		// align the runs
+		service.next_run = now - (now % (service.update_every * 1000));
+
+		service.commit = function() {
+			if(this.added !== true) {
+				this.added = true;
+				
+				var now = new Date().getTime();
+				while( this.next_run < now )
+					this.next_run += (this.update_every * 1000);
+
+				netdata.services.push(this);
+				if(netdata.options.DEBUG === true) netdata.debug(this.module.name + ': ' + this.name + ': service committed.');
+			}
+		};
+
+		service.execute = function(callback) {
+			if(service.enabled === false) {
+				callback(null);
+				return;
+			}
+
+			this.module.active++;
+			this.running = true;
+			this.started = new Date().getTime();
+			this.updates++;
+
+			if(netdata.options.DEBUG === true)
+				netdata.debug(this.module.name + ': ' + this.name + ': making ' + this.processor.name + ' request: ' + netdata.stringify(this));
+
+			this.processor.process(this, function(response) {
+				service.ended = new Date().getTime();
+				service.duration = service.ended - service.started;
+
+				if(typeof response === 'undefined')
+					response = null;
+
+				if(response !== null)
+					service.errorClear();
+
+				if(netdata.options.DEBUG === true)
+					netdata.debug(service.module.name + ': ' + service.name + ': processing ' + service.processor.name + ' response (received in ' + (service.ended - service.started).toString() + ' ms)');
+
+				callback(service, response);
+
+				service.running = false;
+				service.module.active--;
+				if(service.module.active < 0) {
+					service.module.active = 0;
+					if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': active module counter below zero.');
+				}
+
+				if(service.module.active === 0) {
+					// check if we run under configure
+					if(service.module.configure_callback !== null) {
+						if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': configuration finish callback called from processResponse().');
+						var ccallback = service.module.configure_callback;
+						service.module.configure_callback = null;
+						ccallback();
+					}
+				}
+			});
+		};
+
+		service.update = function() {
+			if(netdata.options.DEBUG === true) netdata.debug(this.module.name + ': ' + this.name + ': starting data collection...');
+
+			this.module.update(this, function() {
+				if(netdata.options.DEBUG === true) netdata.debug(service.module.name + ': ' + service.name + ': data collection ended in ' + service.duration.toString() + ' ms.');
+			});
+		};
+
+		service.error = function(message) {
+			if(this.error_reported === false) {
+				netdata.error(this.module.name + ': ' + this.name + ': ' + message);
+				this.error_reported = true;
+			}
+			else if(netdata.options.DEBUG === true)
+				netdata.debug(this.module.name + ': ' + this.name + ': ' + message);
+		};
+
+		service.errorClear = function() {
+			this.error_reported = false;
+		};
+
+		service.queue = function(txt) {
+			this._queue += txt + '\n';
+		};
+
+		service._send_chart_to_netdata = function(chart) {
+			// internal function to send a chart to netdata
+			this.queue('CHART "' + chart.id + '" "' + chart.name + '" "' + chart.title + '" "' + chart.units + '" "' + chart.family + '" "' + chart.context + '" "' + chart.type + '" ' + chart.priority.toString() + ' ' + chart.update_every.toString());
+			
+			for(var dim in chart.dimensions) {
+				var d = chart.dimensions[dim];
+
+				this.queue('DIMENSION "' + d.id + '" "' + d.name + '" "' + d.algorithm + '" ' + d.multiplier.toString() + ' ' + d.divisor.toString() + ' ' + ((d.hidden === true)?'hidden':'').toString());
+				d._created = true;
+				d._updated = false;
+			}
+
+			chart._created = true;
+			chart._updated = false;
+		};
+
+		// begin data collection for a chart
+		service.begin = function(chart) {
+			if(this._current_chart !== null && this._current_chart !== chart) {
+				this.error('Called begin() for chart ' + chart.id + ' while chart ' + this._current_chart.id + ' is still open. Closing it.');
+				this.end();
+			}
+
+			if(typeof(chart.id) === 'undefined' || netdata.charts[chart.id] != chart) {
+				this.error('Called begin() for chart ' + chart.id + ' that is not mine. Where did you find it? Ignoring it.');
+				return false;
+			}
+
+			if(netdata.options.DEBUG === true) netdata.debug('setting current chart to ' + chart.id);
+			this._current_chart = chart;
+			this._current_chart._began = true;
+
+			if(this._current_chart._dimensions_count !== 0) {
+				if(this._current_chart._created === false || this._current_chart._updated === true)
+					this._send_chart_to_netdata(this._current_chart);
+
+				var now = this.ended;
+				this.queue('BEGIN ' + this._current_chart.id + ' ' + ((this._current_chart._last_updated > 0)?((now - this._current_chart._last_updated) * 1000):'').toString());
+			}
+			// else this.error('Called begin() for chart ' + chart.id + ' which is empty.');
+
+			this._current_chart._last_updated = now;
+			this._current_chart._began = true;
+			this._current_chart._counter++;
+
+			return true;
+		};
+
+		// set a collected value for a chart
+		// we do most things on the first value we attempt to set
+		service.set = function(dimension, value) {
+			if(this._current_chart === null) {
+				this.error('Called set(' + dimension + ', ' + value + ') without an open chart.');
+				return false;
+			}
+
+			if(typeof(this._current_chart.dimensions[dimension]) === 'undefined') {
+				this.error('Called set(' + dimension + ', ' + value + ') but dimension "' + dimension + '" does not exist in chart "' + this._current_chart.id + '".');
+				return false;
+			}
+
+			if(typeof value === 'undefined' || value === null)
+				return false;
+
+			if(this._current_chart._dimensions_count !== 0)
+				this.queue('SET ' + dimension + ' = ' + value);
+
+			return true;
+		};
+
+		// end data collection for the current chart - after calling begin()
+		service.end = function() {
+			if(this._current_chart !== null && this._current_chart._began === false) {
+				this.error('Called end() without an open chart.');
+				return false;
+			}
+
+			if(this._current_chart._dimensions_count !== 0) {
+				this.queue('END');
+				netdata.send(this._queue);
+			}
+
+			this._queue = '';
+			this._current_chart._began = false;
+			if(netdata.options.DEBUG === true) netdata.debug('sent chart ' + this._current_chart.id);
+			this._current_chart = null;
+			return true;
+		};
+
+		// discard the collected values for the current chart - after calling begin()
+		service.flush = function() {
+			if(this._current_chart === null || this._current_chart._began === false) {
+				this.error('Called flush() without an open chart.');
+				return false;
+			}
+
+			this._queue = '';
+			this._current_chart._began = false;
+			this._current_chart = null;
+			return true;
+		};
+
+		// create a netdata chart
+		service.chart = function(id, chart) {
+			if(typeof(netdata.charts[id]) === 'undefined') {
+				netdata.charts[id] = {
+					_created: false,
+					_updated: true,
+					_began: false,
+					_counter: 0,
+					_last_updated: 0,
+					_dimensions_count: 0,
+					id: id,
+					name: id,
+					title: 'untitled chart',
+					units: 'a unit',
+					family: '',
+					context: '',
+					type: netdata.chartTypes.line,
+					priority: 50000,
+					update_every: netdata.options.update_every,
+					dimensions: {}
+				};
+			}
+
+			var c = netdata.charts[id];
+
+			if(typeof(chart.name) !== 'undefined' && chart.name !== c.name) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its name');
+				c.name = chart.name;
+				c._updated = true;
+			}
+
+			if(typeof(chart.title) !== 'undefined' && chart.title !== c.title) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its title');
+				c.title = chart.title;
+				c._updated = true;
+			}
+
+			if(typeof(chart.units) !== 'undefined' && chart.units !== c.units) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its units');
+				c.units = chart.units;
+				c._updated = true;
+			}
+
+			if(typeof(chart.family) !== 'undefined' && chart.family !== c.family) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its family');
+				c.family = chart.family;
+				c._updated = true;
+			}
+
+			if(typeof(chart.context) !== 'undefined' && chart.context !== c.context) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its context');
+				c.context = chart.context;
+				c._updated = true;
+			}
+
+			if(typeof(chart.type) !== 'undefined' && chart.type !== c.type) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its type');
+				c.type = chart.type;
+				c._updated = true;
+			}
+
+			if(typeof(chart.priority) !== 'undefined' && chart.priority !== c.priority) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its priority');
+				c.priority = chart.priority;
+				c._updated = true;
+			}
+
+			if(typeof(chart.update_every) !== 'undefined' && chart.update_every !== c.update_every) {
+				if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' updated its update_every from ' + c.update_every + ' to ' + chart.update_every);
+				c.update_every = chart.update_every;
+				c._updated = true;
+			}
+
+			if(typeof(chart.dimensions) !== 'undefined') {
+				for(var x in chart.dimensions) {
+					if(typeof(c.dimensions[x]) === 'undefined') {
+						c._dimensions_count++;
+
+						c.dimensions[x] = {
+							_created: false,
+							_updated: false,
+							id: x,					// the unique id of the dimension
+							name: x,				// the name of the dimension
+							algorithm: netdata.chartAlgorithms.absolute,	// the id of the netdata algorithm
+							multiplier: 1,			// the multiplier
+							divisor: 1,				// the divisor
+							hidden: false,			// is hidden (boolean)
+						};
+
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ' created dimension ' + x);
+						c._updated = true;
+					}
+
+					var dim = chart.dimensions[x];
+					var d = c.dimensions[x];
+
+					if(typeof(dim.name) !== 'undefined' && d.name !== dim.name) {
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ', dimension ' + x + ' updated its name');
+						d.name = dim.name;
+						d._updated = true;
+					}
+
+					if(typeof(dim.algorithm) !== 'undefined' && d.algorithm !== dim.algorithm) {
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ', dimension ' + x + ' updated its algorithm from ' + d.algorithm + ' to ' + dim.algorithm);
+						d.algorithm = dim.algorithm;
+						d._updated = true;
+					}
+
+					if(typeof(dim.multiplier) !== 'undefined' && d.multiplier !== dim.multiplier) {
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ', dimension ' + x + ' updated its multiplier');
+						d.multiplier = dim.multiplier;
+						d._updated = true;
+					}
+
+					if(typeof(dim.divisor) !== 'undefined' && d.divisor !== dim.divisor) {
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ', dimension ' + x + ' updated its divisor');
+						d.divisor = dim.divisor;
+						d._updated = true;
+					}
+
+					if(typeof(dim.hidden) !== 'undefined' && d.hidden !== dim.hidden) {
+						if(netdata.options.DEBUG === true) netdata.debug('chart ' + id + ', dimension ' + x + ' updated its hidden status');
+						d.hidden = dim.hidden;
+						d._updated = true;
+					}
+
+					if(d._updated) c._updated = true;
+				}
+			}
+
+			//if(netdata.options.DEBUG === true) netdata.debug(netdata.charts);
+			return netdata.charts[id];
+		};
+
+		return service;
+	},
+
+	runAllServices: function() {
+		if(netdata.options.DEBUG === true) netdata.debug('runAllServices()');
+
+		var now = new Date().getTime();
+		var len = netdata.services.length;
+		while(len--) {
+			var service = netdata.services[len];
+
+			if(service.enabled === false || service.running === true) continue;
+			if(now <= service.next_run) continue;
+
+			service.update();
+
+			now = new Date().getTime();
+			while(service.next_run < now)
+				service.next_run += (service.update_every * 1000);
+		}
+
+		// 1/10th of update_every in pause
+		setTimeout(netdata.runAllServices, netdata.options.update_every * 100);
+	},
+
+	start: function() {
+		if(netdata.options.DEBUG === true) this.debug('started, services: ' + netdata.stringify(this.services));
+
+		if(this.services.length === 0) {
+			this.disableNodePlugin();
+			process.exit(1);
+		}
+		else this.runAllServices();
+	},
+
+	// disable the whole node.js plugin
+	disableNodePlugin: function() {
+		this.send('DISABLE');
+		process.exit(1);
+	},
+
+	requestFromParams: function(protocol, hostname, port, path, method) {
+		return {
+			protocol: protocol,
+			hostname: hostname,
+			port: port,
+			path: path,
+			//family: 4,
+			method: method,
+			headers: {
+				'Content-Type': 'application/x-www-form-urlencoded',
+				'Connection': 'keep-alive'
+			},
+			agent: new http.Agent({
+				keepAlive: true,
+				keepAliveMsecs: netdata.options.update_every * 1000,
+				maxSockets: 2, // it must be 2 to work
+				maxFreeSockets: 1
+			})
+		};
+	},
+
+	requestFromURL: function(a_url) {
+		var u = url.parse(a_url);
+		return netdata.requestFromParams(u.protocol, u.hostname, u.port, u.path, 'GET');
+	},
+
+	configure: function(module, config, callback) {
+		if(netdata.options.DEBUG === true) this.debug(module.name + ': configuring (update_every: ' + this.options.update_every + ')...');
+
+		module.active = 0;
+		module.update_every = this.options.update_every;
+
+		if(typeof config.update_every !== 'undefined')
+			module.update_every = config.update_every;
+
+		module.enable_autodetect = (config.enable_autodetect)?true:false;
+
+		if(typeof(callback) === 'function')
+			module.configure_callback = callback;
+		else
+			module.configure_callback = null;
+
+		var added = module.configure(config);
+
+		if(netdata.options.DEBUG === true) this.debug(module.name + ': configured, reporting ' + added + ' eligible services.');
+
+		if(module.configure_callback !== null && added === 0) {
+			if(netdata.options.DEBUG === true) this.debug(module.name + ': configuration finish callback called from configure().');
+			module.configure_callback = null;
+			callback();
+		}
+
+		return added;
+	}
+};
+
+if(netdata.options.DEBUG === true) netdata.debug('loaded netdata from: ' + __filename);
+module.exports = netdata;
diff --git a/node.d/node_modules/pixl-xml.js b/node.d/node_modules/pixl-xml.js
new file mode 100644
index 000000000..481acbaeb
--- /dev/null
+++ b/node.d/node_modules/pixl-xml.js
@@ -0,0 +1,606 @@
+/*
+	JavaScript XML Library
+	Plus a bunch of object utility functions
+	
+	Usage:
+		var XML = require('pixl-xml');
+		var myxmlstring = '<?xml version="1.0"?><Document>' + 
+			'<Simple>Hello</Simple>' + 
+			'<Node Key="Value">Content</Node>' + 
+			'</Document>';
+		
+		var tree = XML.parse( myxmlstring, { preserveAttributes: true });
+		console.log( tree );
+		
+		tree.Simple = "Hello2";
+		tree.Node._Attribs.Key = "Value2";
+		tree.Node._Data = "Content2";
+		tree.New = "I added this";
+		
+		console.log( XML.stringify( tree, 'Document' ) );
+	
+	Copyright (c) 2004 - 2015 Joseph Huckaby
+	Released under the MIT License
+	This version is for Node.JS, converted in 2012.
+*/
+
+var fs = require('fs');
+
+var indent_string = "\t";
+var xml_header = '<?xml version="1.0"?>';
+var sort_args = null;
+var re_valid_tag_name  = /^\w[\w\-\:]*$/;
+
+var XML = exports.XML = function XML(args) {
+	// class constructor for XML parser class
+	// pass in args hash or text to parse
+	if (!args) args = '';
+	if (isa_hash(args)) {
+		for (var key in args) this[key] = args[key];
+	}
+	else this.text = args || '';
+	
+	// stringify buffers
+	if (this.text instanceof Buffer) {
+		this.text = this.text.toString();
+	}
+	
+	if (!this.text.match(/^\s*</)) {
+		// try as file path
+		var file = this.text;
+		this.text = fs.readFileSync(file, { encoding: 'utf8' });
+		if (!this.text) throw new Error("File not found: " + file);
+	}
+	
+	this.tree = {};
+	this.errors = [];
+	this.piNodeList = [];
+	this.dtdNodeList = [];
+	this.documentNodeName = '';
+	
+	if (this.lowerCase) {
+		this.attribsKey = this.attribsKey.toLowerCase();
+		this.dataKey = this.dataKey.toLowerCase();
+	}
+	
+	this.patTag.lastIndex = 0;
+	if (this.text) this.parse();
+}
+
+XML.prototype.preserveAttributes = false;
+XML.prototype.lowerCase = false;
+
+XML.prototype.patTag = /([^<]*?)<([^>]+)>/g;
+XML.prototype.patSpecialTag = /^\s*([\!\?])/;
+XML.prototype.patPITag = /^\s*\?/;
+XML.prototype.patCommentTag = /^\s*\!--/;
+XML.prototype.patDTDTag = /^\s*\!DOCTYPE/;
+XML.prototype.patCDATATag = /^\s*\!\s*\[\s*CDATA/;
+XML.prototype.patStandardTag = /^\s*(\/?)([\w\-\:\.]+)\s*(.*)$/;
+XML.prototype.patSelfClosing = /\/\s*$/;
+XML.prototype.patAttrib = new RegExp("([\\w\\-\\:\\.]+)\\s*=\\s*([\\\"\\'])([^\\2]*?)\\2", "g");
+XML.prototype.patPINode = /^\s*\?\s*([\w\-\:]+)\s*(.*)$/;
+XML.prototype.patEndComment = /--$/;
+XML.prototype.patNextClose = /([^>]*?)>/g;
+XML.prototype.patExternalDTDNode = new RegExp("^\\s*\\!DOCTYPE\\s+([\\w\\-\\:]+)\\s+(SYSTEM|PUBLIC)\\s+\\\"([^\\\"]+)\\\"");
+XML.prototype.patInlineDTDNode = /^\s*\!DOCTYPE\s+([\w\-\:]+)\s+\[/;
+XML.prototype.patEndDTD = /\]$/;
+XML.prototype.patDTDNode = /^\s*\!DOCTYPE\s+([\w\-\:]+)\s+\[(.*)\]/;
+XML.prototype.patEndCDATA = /\]\]$/;
+XML.prototype.patCDATANode = /^\s*\!\s*\[\s*CDATA\s*\[([^]*)\]\]/;
+
+XML.prototype.attribsKey = '_Attribs';
+XML.prototype.dataKey = '_Data';
+
+XML.prototype.parse = function(branch, name) {
+	// parse text into XML tree, recurse for nested nodes
+	if (!branch) branch = this.tree;
+	if (!name) name = null;
+	var foundClosing = false;
+	var matches = null;
+	
+	// match each tag, plus preceding text
+	while ( matches = this.patTag.exec(this.text) ) {
+		var before = matches[1];
+		var tag = matches[2];
+		
+		// text leading up to tag = content of parent node
+		if (before.match(/\S/)) {
+			if (typeof(branch[this.dataKey]) != 'undefined') branch[this.dataKey] += ' '; else branch[this.dataKey] = '';
+			branch[this.dataKey] += trim(decode_entities(before));
+		}
+		
+		// parse based on tag type
+		if (tag.match(this.patSpecialTag)) {
+			// special tag
+			if (tag.match(this.patPITag)) tag = this.parsePINode(tag);
+			else if (tag.match(this.patCommentTag)) tag = this.parseCommentNode(tag);
+			else if (tag.match(this.patDTDTag)) tag = this.parseDTDNode(tag);
+			else if (tag.match(this.patCDATATag)) {
+				tag = this.parseCDATANode(tag);
+				if (typeof(branch[this.dataKey]) != 'undefined') branch[this.dataKey] += ' '; else branch[this.dataKey] = '';
+				branch[this.dataKey] += trim(decode_entities(tag));
+			} // cdata
+			else {
+				this.throwParseError( "Malformed special tag", tag );
+				break;
+			} // error
+			
+			if (tag == null) break;
+			continue;
+		} // special tag
+		else {
+			// Tag is standard, so parse name and attributes (if any)
+			var matches = tag.match(this.patStandardTag);
+			if (!matches) {
+				this.throwParseError( "Malformed tag", tag );
+				break;
+			}
+			
+			var closing = matches[1];
+			var nodeName = this.lowerCase ? matches[2].toLowerCase() : matches[2];
+			var attribsRaw = matches[3];
+			
+			// If this is a closing tag, make sure it matches its opening tag
+			if (closing) {
+				if (nodeName == (name || '')) {
+					foundClosing = 1;
+					break;
+				}
+				else {
+					this.throwParseError( "Mismatched closing tag (expected </" + name + ">)", tag );
+					break;
+				}
+			} // closing tag
+			else {
+				// Not a closing tag, so parse attributes into hash.  If tag
+				// is self-closing, no recursive parsing is needed.
+				var selfClosing = !!attribsRaw.match(this.patSelfClosing);
+				var leaf = {};
+				var attribs = leaf;
+				
+				// preserve attributes means they go into a sub-hash named "_Attribs"
+				// the XML composer honors this for restoring the tree back into XML
+				if (this.preserveAttributes) {
+					leaf[this.attribsKey] = {};
+					attribs = leaf[this.attribsKey];
+				}
+				
+				// parse attributes
+				this.patAttrib.lastIndex = 0;
+				while ( matches = this.patAttrib.exec(attribsRaw) ) {
+					var key = this.lowerCase ? matches[1].toLowerCase() : matches[1];
+					attribs[ key ] = decode_entities( matches[3] );
+				} // foreach attrib
+				
+				// if no attribs found, but we created the _Attribs subhash, clean it up now
+				if (this.preserveAttributes && !num_keys(attribs)) {
+					delete leaf[this.attribsKey];
+				}
+				
+				// Recurse for nested nodes
+				if (!selfClosing) {
+					this.parse( leaf, nodeName );
+					if (this.error()) break;
+				}
+				
+				// Compress into simple node if text only
+				var num_leaf_keys = num_keys(leaf);
+				if ((typeof(leaf[this.dataKey]) != 'undefined') && (num_leaf_keys == 1)) {
+					leaf = leaf[this.dataKey];
+				}
+				else if (!num_leaf_keys) {
+					leaf = '';
+				}
+				
+				// Add leaf to parent branch
+				if (typeof(branch[nodeName]) != 'undefined') {
+					if (isa_array(branch[nodeName])) {
+						branch[nodeName].push( leaf );
+					}
+					else {
+						var temp = branch[nodeName];
+						branch[nodeName] = [ temp, leaf ];
+					}
+				}
+				else {
+					branch[nodeName] = leaf;
+				}
+				
+				if (this.error() || (branch == this.tree)) break;
+			} // not closing
+		} // standard tag
+	} // main reg exp
+	
+	// Make sure we found the closing tag
+	if (name && !foundClosing) {
+		this.throwParseError( "Missing closing tag (expected </" + name + ">)", name );
+	}
+	
+	// If we are the master node, finish parsing and setup our doc node
+	if (branch == this.tree) {
+		if (typeof(this.tree[this.dataKey]) != 'undefined') delete this.tree[this.dataKey];
+		
+		if (num_keys(this.tree) > 1) {
+			this.throwParseError( 'Only one top-level node is allowed in document', first_key(this.tree) );
+			return;
+		}
+
+		this.documentNodeName = first_key(this.tree);
+		if (this.documentNodeName) {
+			this.tree = this.tree[this.documentNodeName];
+		}
+	}
+};
+
+XML.prototype.throwParseError = function(key, tag) {
+	// log error and locate current line number in source XML document
+	var parsedSource = this.text.substring(0, this.patTag.lastIndex);
+	var eolMatch = parsedSource.match(/\n/g);
+	var lineNum = (eolMatch ? eolMatch.length : 0) + 1;
+	lineNum -= tag.match(/\n/) ? tag.match(/\n/g).length : 0;
+	
+	this.errors.push({ 
+		type: 'Parse',
+		key: key,
+		text: '<' + tag + '>',
+		line: lineNum
+	});
+	
+	// Throw actual error (must wrap parse in try/catch)
+	throw new Error( this.getLastError() );
+};
+
+XML.prototype.error = function() {
+	// return number of errors
+	return this.errors.length;
+};
+
+XML.prototype.getError = function(error) {
+	// get formatted error
+	var text = '';
+	if (!error) return '';
+
+	text = (error.type || 'General') + ' Error';
+	if (error.code) text += ' ' + error.code;
+	text += ': ' + error.key;
+	
+	if (error.line) text += ' on line ' + error.line;
+	if (error.text) text += ': ' + error.text;
+
+	return text;
+};
+
+XML.prototype.getLastError = function() {
+	// Get most recently thrown error in plain text format
+	if (!this.error()) return '';
+	return this.getError( this.errors[this.errors.length - 1] );
+};
+
+XML.prototype.parsePINode = function(tag) {
+	// Parse Processor Instruction Node, e.g. <?xml version="1.0"?>
+	if (!tag.match(this.patPINode)) {
+		this.throwParseError( "Malformed processor instruction", tag );
+		return null;
+	}
+	
+	this.piNodeList.push( tag );
+	return tag;
+};
+
+XML.prototype.parseCommentNode = function(tag) {
+	// Parse Comment Node, e.g. <!-- hello -->
+	var matches = null;
+	this.patNextClose.lastIndex = this.patTag.lastIndex;
+	
+	while (!tag.match(this.patEndComment)) {
+		if (matches = this.patNextClose.exec(this.text)) {
+			tag += '>' + matches[1];
+		}
+		else {
+			this.throwParseError( "Unclosed comment tag", tag );
+			return null;
+		}
+	}
+	
+	this.patTag.lastIndex = this.patNextClose.lastIndex;
+	return tag;
+};
+
+XML.prototype.parseDTDNode = function(tag) {
+	// Parse Document Type Descriptor Node, e.g. <!DOCTYPE ... >
+	var matches = null;
+	
+	if (tag.match(this.patExternalDTDNode)) {
+		// tag is external, and thus self-closing
+		this.dtdNodeList.push( tag );
+	}
+	else if (tag.match(this.patInlineDTDNode)) {
+		// Tag is inline, so check for nested nodes.
+		this.patNextClose.lastIndex = this.patTag.lastIndex;
+		
+		while (!tag.match(this.patEndDTD)) {
+			if (matches = this.patNextClose.exec(this.text)) {
+				tag += '>' + matches[1];
+			}
+			else {
+				this.throwParseError( "Unclosed DTD tag", tag );
+				return null;
+			}
+		}
+		
+		this.patTag.lastIndex = this.patNextClose.lastIndex;
+		
+		// Make sure complete tag is well-formed, and push onto DTD stack.
+		if (tag.match(this.patDTDNode)) {
+			this.dtdNodeList.push( tag );
+		}
+		else {
+			this.throwParseError( "Malformed DTD tag", tag );
+			return null;
+		}
+	}
+	else {
+		this.throwParseError( "Malformed DTD tag", tag );
+		return null;
+	}
+	
+	return tag;
+};
+
+XML.prototype.parseCDATANode = function(tag) {
+	// Parse CDATA Node, e.g. <![CDATA[Brooks & Shields]]>
+	var matches = null;
+	this.patNextClose.lastIndex = this.patTag.lastIndex;
+	
+	while (!tag.match(this.patEndCDATA)) {
+		if (matches = this.patNextClose.exec(this.text)) {
+			tag += '>' + matches[1];
+		}
+		else {
+			this.throwParseError( "Unclosed CDATA tag", tag );
+			return null;
+		}
+	}
+	
+	this.patTag.lastIndex = this.patNextClose.lastIndex;
+	
+	if (matches = tag.match(this.patCDATANode)) {
+		return matches[1];
+	}
+	else {
+		this.throwParseError( "Malformed CDATA tag", tag );
+		return null;
+	}
+};
+
+XML.prototype.getTree = function() {
+	// get reference to parsed XML tree
+	return this.tree;
+};
+
+XML.prototype.compose = function() {
+	// compose tree back into XML
+	var raw = compose_xml( this.tree, this.documentNodeName );
+	var body = raw.substring( raw.indexOf("\n") + 1, raw.length );
+	var xml = '';
+	
+	if (this.piNodeList.length) {
+		for (var idx = 0, len = this.piNodeList.length; idx < len; idx++) {
+			xml += '<' + this.piNodeList[idx] + '>' + "\n";
+		}
+	}
+	else {
+		xml += xml_header + "\n";
+	}
+	
+	if (this.dtdNodeList.length) {
+		for (var idx = 0, len = this.dtdNodeList.length; idx < len; idx++) {
+			xml += '<' + this.dtdNodeList[idx] + '>' + "\n";
+		}
+	}
+	
+	xml += body;
+	return xml;
+};
+
+//
+// Static Utility Functions:
+//
+
+var parse_xml = exports.parse = function parse_xml(text, opts) {
+	// turn text into XML tree quickly
+	if (!opts) opts = {};
+	opts.text = text;
+	var parser = new XML(opts);
+	return parser.error() ? parser.getLastError() : parser.getTree();
+};
+
+var trim = exports.trim = function trim(text) {
+	// strip whitespace from beginning and end of string
+	if (text == null) return '';
+	
+	if (text && text.replace) {
+		text = text.replace(/^\s+/, "");
+		text = text.replace(/\s+$/, "");
+	}
+	
+	return text;
+};
+
+var encode_entities = exports.encodeEntities = function encode_entities(text) {
+	// Simple entitize exports.for = function for composing XML
+	if (text == null) return '';
+	
+	if (text && text.replace) {
+		text = text.replace(/\&/g, "&amp;"); // MUST BE FIRST
+		text = text.replace(/</g, "&lt;");
+		text = text.replace(/>/g, "&gt;");
+	}
+	
+	return text;
+};
+
+var encode_attrib_entities = exports.encodeAttribEntities = function encode_attrib_entities(text) {
+	// Simple entitize exports.for = function for composing XML attributes
+	if (text == null) return '';
+	
+	if (text && text.replace) {
+		text = text.replace(/\&/g, "&amp;"); // MUST BE FIRST
+		text = text.replace(/</g, "&lt;");
+		text = text.replace(/>/g, "&gt;");
+		text = text.replace(/\"/g, "&quot;");
+		text = text.replace(/\'/g, "&apos;");
+	}
+	
+	return text;
+};
+
+var decode_entities = exports.decodeEntities = function decode_entities(text) {
+	// Decode XML entities into raw ASCII
+	if (text == null) return '';
+	
+	if (text && text.replace && text.match(/\&/)) {
+		text = text.replace(/\&lt\;/g, "<");
+		text = text.replace(/\&gt\;/g, ">");
+		text = text.replace(/\&quot\;/g, '"');
+		text = text.replace(/\&apos\;/g, "'");
+		text = text.replace(/\&amp\;/g, "&"); // MUST BE LAST
+	}
+	
+	return text;
+};
+
+var compose_xml = exports.stringify = function compose_xml(node, name, indent) {
+	// Compose node into XML including attributes
+	// Recurse for child nodes
+	var xml = "";
+	
+	// If this is the root node, set the indent to 0
+	// and setup the XML header (PI node)
+	if (!indent) {
+		indent = 0;
+		xml = xml_header + "\n";
+		
+		if (!name) {
+			// no name provided, assume content is wrapped in it
+			name = first_key(node);
+			node = node[name];
+		}
+	}
+	
+	// Setup the indent text
+	var indent_text = "";
+	for (var k = 0; k < indent; k++) indent_text += indent_string;
+
+	if ((typeof(node) == 'object') && (node != null)) {
+		// node is object -- now see if it is an array or hash
+		if (!node.length) { // what about zero-length array?
+			// node is hash
+			xml += indent_text + "<" + name;
+
+			var num_keys = 0;
+			var has_attribs = 0;
+			for (var key in node) num_keys++; // there must be a better way...
+
+			if (node["_Attribs"]) {
+				has_attribs = 1;
+				var sorted_keys = hash_keys_to_array(node["_Attribs"]).sort();
+				for (var idx = 0, len = sorted_keys.length; idx < len; idx++) {
+					var key = sorted_keys[idx];
+					xml += " " + key + "=\"" + encode_attrib_entities(node["_Attribs"][key]) + "\"";
+				}
+			} // has attribs
+
+			if (num_keys > has_attribs) {
+				// has child elements
+				xml += ">";
+
+				if (node["_Data"]) {
+					// simple text child node
+					xml += encode_entities(node["_Data"]) + "</" + name + ">\n";
+				} // just text
+				else {
+					xml += "\n";
+					
+					var sorted_keys = hash_keys_to_array(node).sort();
+					for (var idx = 0, len = sorted_keys.length; idx < len; idx++) {
+						var key = sorted_keys[idx];					
+						if ((key != "_Attribs") && key.match(re_valid_tag_name)) {
+							// recurse for node, with incremented indent value
+							xml += compose_xml( node[key], key, indent + 1 );
+						} // not _Attribs key
+					} // foreach key
+
+					xml += indent_text + "</" + name + ">\n";
+				} // real children
+			}
+			else {
+				// no child elements, so self-close
+				xml += "/>\n";
+			}
+		} // standard node
+		else {
+			// node is array
+			for (var idx = 0; idx < node.length; idx++) {
+				// recurse for node in array with same indent
+				xml += compose_xml( node[idx], name, indent );
+			}
+		} // array of nodes
+	} // complex node
+	else {
+		// node is simple string
+		xml += indent_text + "<" + name + ">" + encode_entities(node) + "</" + name + ">\n";
+	} // simple text node
+
+	return xml;
+};
+
+var always_array = exports.alwaysArray = function always_array(obj, key) {
+	// if object is not array, return array containing object
+	// if key is passed, work like XMLalwaysarray() instead
+	if (key) {
+		if ((typeof(obj[key]) != 'object') || (typeof(obj[key].length) == 'undefined')) {
+			var temp = obj[key];
+			delete obj[key];
+			obj[key] = new Array();
+			obj[key][0] = temp;
+		}
+		return null;
+	}
+	else {
+		if ((typeof(obj) != 'object') || (typeof(obj.length) == 'undefined')) { return [ obj ]; }
+		else return obj;
+	}
+};
+
+var hash_keys_to_array = exports.hashKeysToArray = function hash_keys_to_array(hash) {
+	// convert hash keys to array (discard values)
+	var array = [];
+	for (var key in hash) array.push(key);
+	return array;
+};
+
+var isa_hash = exports.isaHash = function isa_hash(arg) {
+	// determine if arg is a hash
+	return( !!arg && (typeof(arg) == 'object') && (typeof(arg.length) == 'undefined') );
+};
+
+var isa_array = exports.isaArray = function isa_array(arg) {
+	// determine if arg is an array or is array-like
+	if (typeof(arg) == 'array') return true;
+	return( !!arg && (typeof(arg) == 'object') && (typeof(arg.length) != 'undefined') );
+};
+
+var first_key = exports.firstKey = function first_key(hash) {
+	// return first key from hash (unordered)
+	for (var key in hash) return key;
+	return null; // no keys in hash
+};
+
+var num_keys = exports.numKeys = function num_keys(hash) {
+	// count the number of keys in a hash
+	var count = 0;
+	for (var a in hash) count++;
+	return count;
+};
diff --git a/node.d/sma_webbox.node.js b/node.d/sma_webbox.node.js
new file mode 100755
index 000000000..5ed1c55a7
--- /dev/null
+++ b/node.d/sma_webbox.node.js
@@ -0,0 +1,237 @@
+'use strict';
+
+// This program will connect to one or more SMA Sunny Webboxes
+// to get the Solar Power Generated (current, today, total).
+
+// example configuration in /etc/netdata/sma_webbox.conf
+/*
+{
+	"enable_autodetect": false,
+	"update_every": 5,
+	"servers": [
+		{
+			"name": "plant1",
+			"hostname": "10.0.1.1",
+			"update_every": 10
+		},
+		{
+			"name": "plant2",
+			"hostname": "10.0.2.1",
+			"update_every": 15
+		}
+	]
+}
+*/
+
+var url = require('url');
+var http = require('http');
+var netdata = require('netdata');
+
+if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
+
+var webbox = {
+	name: __filename,
+	enable_autodetect: true,
+	update_every: 1,
+	base_priority: 60000,
+	charts: {},
+
+	processResponse: function(service, data) {
+		if(data !== null) {
+			var r = JSON.parse(data);
+
+			var d = {
+				'GriPwr': {
+					unit: null,
+					value: null
+				},
+				'GriEgyTdy': {
+					unit: null,
+					value: null
+				},
+				'GriEgyTot': {
+					unit: null,
+					value: null
+				}
+			};
+
+			// parse the webbox response
+			// and put it in our d object
+			var found = 0;
+			var len = r.result.overview.length;
+			while(len--) {
+				var e = r.result.overview[len];
+				if(typeof(d[e.meta]) !== 'undefined') {
+					found++;
+					d[e.meta].value = e.value;
+					d[e.meta].unit = e.unit;
+				}
+			}
+
+			// add the service
+			if(found > 0 && service.added !== true)
+				service.commit();
+
+			// Grid Current Power Chart
+			if(d['GriPwr'].value !== null) {
+				var id = 'sma_webbox_' + service.name + '.current';
+				var chart = webbox.charts[id];
+
+				if(typeof chart === 'undefined') {
+					chart = {
+						id: id,											// the unique id of the chart
+						name: '',										// the unique name of the chart
+						title: service.name + ' Current Grid Power',	// the title of the chart
+						units: d['GriPwr'].unit,						// the units of the chart dimensions
+						family: 'now',									// the family of the chart
+						context: 'sma_webbox.grid.power',				// the context of the chart
+						type: netdata.chartTypes.area,					// the type of the chart
+						priority: webbox.base_priority + 1,				// the priority relative to others in the same family
+						update_every: service.update_every,				// the expected update frequency of the chart
+						dimensions: {
+							'GriPwr': {
+								id: 'GriPwr',								// the unique id of the dimension
+								name: 'power',								// the name of the dimension
+								algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+								multiplier: 1,								// the multiplier
+								divisor: 1,									// the divisor
+								hidden: false								// is hidden (boolean)
+							}
+						}
+					};
+
+					chart = service.chart(id, chart);
+					webbox.charts[id] = chart;
+				}
+
+				service.begin(chart);
+				service.set('GriPwr', Math.round(d['GriPwr'].value));
+				service.end();
+			}
+
+			if(d['GriEgyTdy'].value !== null) {
+				var id = 'sma_webbox_' + service.name + '.today';
+				var chart = webbox.charts[id];
+
+				if(typeof chart === 'undefined') {
+					chart = {
+						id: id,											// the unique id of the chart
+						name: '',										// the unique name of the chart
+						title: service.name + ' Today Grid Power',		// the title of the chart
+						units: d['GriEgyTdy'].unit,						// the units of the chart dimensions
+						family: 'today',								// the family of the chart
+						context: 'sma_webbox.grid.power.today',			// the context of the chart
+						type: netdata.chartTypes.area,					// the type of the chart
+						priority: webbox.base_priority + 2,				// the priority relative to others in the same family
+						update_every: service.update_every,				// the expected update frequency of the chart
+						dimensions: {
+							'GriEgyTdy': {
+								id: 'GriEgyTdy',								// the unique id of the dimension
+								name: 'power',								// the name of the dimension
+								algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+								multiplier: 1,								// the multiplier
+								divisor: 1000,								// the divisor
+								hidden: false								// is hidden (boolean)
+							}
+						}
+					};
+
+					chart = service.chart(id, chart);
+					webbox.charts[id] = chart;
+				}
+
+				service.begin(chart);
+				service.set('GriEgyTdy', Math.round(d['GriEgyTdy'].value * 1000));
+				service.end();
+			}
+
+			if(d['GriEgyTot'].value !== null) {
+				var id = 'sma_webbox_' + service.name + '.total';
+				var chart = webbox.charts[id];
+
+				if(typeof chart === 'undefined') {
+					chart = {
+						id: id,											// the unique id of the chart
+						name: '',										// the unique name of the chart
+						title: service.name + ' Total Grid Power',		// the title of the chart
+						units: d['GriEgyTot'].unit,						// the units of the chart dimensions
+						family: 'total',								// the family of the chart
+						context: 'sma_webbox.grid.power.total',			// the context of the chart
+						type: netdata.chartTypes.area,					// the type of the chart
+						priority: webbox.base_priority + 3,				// the priority relative to others in the same family
+						update_every: service.update_every,				// the expected update frequency of the chart
+						dimensions: {
+							'GriEgyTot': {
+								id: 'GriEgyTot',								// the unique id of the dimension
+								name: 'power',								// the name of the dimension
+								algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+								multiplier: 1,								// the multiplier
+								divisor: 1000,								// the divisor
+								hidden: false								// is hidden (boolean)
+							}
+						}
+					};
+
+					chart = service.chart(id, chart);
+					webbox.charts[id] = chart;
+				}
+
+				service.begin(chart);
+				service.set('GriEgyTot', Math.round(d['GriEgyTot'].value * 1000));
+				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(name, hostname, update_every) {
+		if(netdata.options.DEBUG === true) netdata.debug(this.name + ': ' + name + ': hostname: ' + hostname + ', update_every: ' + update_every);
+
+		var service = netdata.service({
+			name: name,
+			request: netdata.requestFromURL('http://' + hostname + '/rpc'),
+			update_every: update_every,
+			module: this
+		});
+		service.postData = 'RPC={"proc":"GetPlantOverview","format":"JSON","version":"1.0","id":"1"}';
+		service.request.method = 'POST';
+		service.request.headers['Content-Length'] = service.postData.length;
+
+		service.execute(this.processResponse);
+	},
+
+	configure: function(config) {
+		var added = 0;
+
+		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(config.servers[len].update_every < 5)
+					config.servers[len].update_every = 5;
+
+				this.serviceExecute(config.servers[len].name, config.servers[len].hostname, config.servers[len].update_every);
+				added++;
+			}
+		}
+
+		return added;
+	},
+
+	// module.update()
+	// this is called repeatidly to collect data, by calling
+	// netdata.serviceExecute()
+	update: function(service, callback) {
+		service.execute(function(serv, data) {
+			service.module.processResponse(serv, data);
+			callback();
+		});
+	},
+};
+
+module.exports = webbox;
diff --git a/node.d/snmp.node.js b/node.d/snmp.node.js
new file mode 100755
index 000000000..21615f623
--- /dev/null
+++ b/node.d/snmp.node.js
@@ -0,0 +1,436 @@
+'use strict';
+
+// This program will connect to one or more SNMP Agents
+
+// example configuration in /etc/netdata/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
+						}
+					}
+				}
+			}
+		}
+	]
+}
+*/
+
+// You can also give ranges of charts like the following.
+// This will append 1-24 to id, title, oid (on each dimension)
+// 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
+						}
+					}
+				}
+			}
+		}
+	]
+}
+*/
+
+var net_snmp = require('net-snmp');
+var extend = require('extend');
+var netdata = require('netdata');
+
+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);
+	}
+};
+
+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();
+		});
+	},
+};
+
+module.exports = snmp;