feature: use canboatjs version for "Software Version Code" and add su…

…pport for 126998 (#270)

lib/candevice.js

@@ -20,6 +20,13 @@ const _ = require('lodash')
 const Uint64LE = require('int64-buffer').Uint64LE
 const { defaultTransmitPGNs, getIndustryCode, getManufacturerCode, getDeviceClassCode } = require('./codes')
 const { toPgn } = require('./toPgn')
+let packageJson
+
+try
+{
+  packageJson = require('../' + 'package.json')
+} catch (ex) {
+}
 
 const deviceTransmitPGNs = [ 60928, 59904, 126996, 126464 ]
 
@@ -51,6 +58,8 @@ class CanDevice extends EventEmitter {
       this.addressClaim["Unique Number"] = options.uniqueNumber || Math.floor(Math.random() * Math.floor(2097151))
     }
 
+    let version = packageJson ? packageJson.version : "1.0"
+
     if ( options.productInfo ) {
       this.productInfo = options.productInfo
       this.productInfo.pgn = 126996
@@ -62,14 +71,25 @@ class CanDevice extends EventEmitter {
         "NMEA 2000 Version": 1300,
         "Product Code": 667,   // Just made up..
         "Model ID": "Signal K",
-        "Software Version Code": "1.0",
-        "Model Version": "canbusjs",
+        "Model Version": "canboatjs",
         "Model Serial Code": options.uniqueNumber ? options.uniqueNumber.toString() : "000001",
         "Certification Level": 0,
         "Load Equivalency": 1
       }
     }
 
+    this.productInfo["Software Version Code"] = version
+
+    if ( options.serverVersion && options.serverUrl ) {
+      this.configurationInfo = {
+        pgn: 126998,
+        dst: 255,
+        "Installation Description #1": options.serverUrl,
+        "Installation Description #2": options.serverDescription,
+        "Manufacturer Information": options.serverVersion
+      }
+    } 
+
     this.canbus = canbus
     this.options = _.isUndefined(options) ? {} : options
 
@@ -144,6 +164,9 @@ function handleISORequest(device, n2kMsg) {
   case 126996:  // Product Information request
     sendProductInformation(device)
     break;
+  case 126998:  // Config Information request
+    sendConfigInformation(device)
+    break;
   case 60928:   // ISO address claim request
     sendPGN(device, device.addressClaim)
     break;
@@ -292,6 +315,13 @@ function sendProductInformation(device) {
   sendPGN(device, device.productInfo)
 }
 
+function sendConfigInformation(device) {
+  if ( device.configurationInfo ) {
+    debug("Sending config info..")
+    sendPGN(device, device.configurationInfo)
+  }
+}
+
 function sendNAKAcknowledgement(device, src, requestedPGN) {
   const acknowledgement = {
     pgn: 59392,