| author | Tomas Zeman <tzeman@volny.cz> |
| Thu, 28 Mar 2013 21:55:07 +0100 | |
| changeset 5 | 2db4f3d512bb |
| parent 3 | edd377ebd4ca |
| permissions | -rw-r--r-- |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
Tomas Zeman <tzeman@volny.cz>
parents:
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snmp = require('snmp-native')
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
Tomas Zeman <tzeman@volny.cz>
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snmpTypes = require('snmp-native/lib/asn1ber').types
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
Tomas Zeman <tzeman@volny.cz>
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bf13852dc3ab
example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
Tomas Zeman <tzeman@volny.cz>
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typeStr = {}
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Integer] = 'Integer' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.OctetString] = 'OctetString' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Null] = 'Null' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.ObjectIdentifier] = 'ObjectIdentifier' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Sequence] = 'Sequence' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.IpAddress] = 'IpAddress' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Counter] = 'Counter' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Gauge] = 'Gauge' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.TimeTicks] = 'TimeTicks' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Opaque] = 'Opaque' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.NsapAddress] = 'NsapAddress' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.Counter64] = 'Counter64' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.NoSuchObject] = 'NoSuchObject' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.NoSuchInstance] = 'NoSuchInstance' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.EndOfMibView] = 'EndOfMibView' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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typeStr[snmpTypes.PDUBase] = 'PDUBase' |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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### |
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Converts TimeTicks value to easy-to-use structure. |
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### |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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convertTimeTicks = (v) -> |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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intDiv = (a, b) -> Math.floor(a / b) |
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msec = v % 100 |
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v = intDiv(v, 100) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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secs = v % 60 |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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v = intDiv(v, 60) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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mins = v % 60 |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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v = intDiv(v, 60) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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hours = v % 24 |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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days = intDiv(v, 24) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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days: days |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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hours: hours |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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mins: mins |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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secs: secs |
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msecs: msec |
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### |
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Processes SNMP result value. |
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### |
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processVarBind = (vb) -> |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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rv = |
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oid: "." + vb.oid.reduce (x,y) -> x+"."+y |
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value: vb.value |
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type: vb.type |
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typeStr: typeStr[vb.type] ? 'Unknown' |
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if (rv.type == snmpTypes.TimeTicks) |
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rv.timeTicks = convertTimeTicks(vb.value) |
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rv |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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### |
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Creates SNMP session and retrieves values for the supplied OIDs. |
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### |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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snmpget = (opts, cb) -> |
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example.coffee: abortOnError; pass opts to snmp.Session
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sess = new snmp.Session(opts) |
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res = [] |
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snmpgetOne = (i) -> |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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if (i < opts.oids.length) |
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oid = opts.oids[i] |
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example.coffee: abortOnError; pass opts to snmp.Session
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sess.get({oid: oid}, (err, vbs) ->
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if (err) |
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res.push { error: err, oid: oid }
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example.coffee: abortOnError; pass opts to snmp.Session
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if (opts.abortOnError) |
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i = opts.oids.length |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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else |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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res.push vbs.map(processVarBind)... |
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snmpgetOne ++i |
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) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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else |
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sess.close() |
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cb(res) |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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snmpgetOne 0 |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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# Example OIDs (some intentionally wrong). |
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example.coffee: simplest snmpget for list of oids (avoid getAll - bulk get not implemented by all devs)
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oids = [ |
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example.coffee: abortOnError; pass opts to snmp.Session
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'.1.3.6.1.2.1.1.1', |
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'.1.3.6.1.2.1.1.1.0', |
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'.1.3.6.1.2.1.1.2.0', |
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'.1.3.6.1.2.1.1.3.0', |
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'.1.3.6.1.4.1.9.2.1.57.0', |
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'.1.3.6.1.4.1.9.2.1.58.0', |
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'.1.3.6.1.4.1.9.9.48.1.1.1.5.1', |
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'.1.3.6.1.4.1.9.9.48.1.1.1.6.1', |
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'.1.3.6.1.4.1.9.9.13.1.3.1.3.1' |
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] |
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opts = |
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host: process.env.HOST ? "localhost" |
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community: process.env.COMMUNITY ? "public" |
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oids: oids |
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example.coffee: abortOnError; pass opts to snmp.Session
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abortOnError: true |
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parents:
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### |
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Do the work |
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### |
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snmpget(opts, (res) -> console.log res) |