src/frontends/android/src/org/strongswan/android/logic/imc/AndroidImc.java

   1 /*
   2  * Copyright (C) 2013 Tobias Brunner
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 package org.strongswan.android.logic.imc;
  17
  18 import org.strongswan.android.logic.imc.attributes.Attribute;
  19 import org.strongswan.android.logic.imc.attributes.AttributeType;
  20 import org.strongswan.android.logic.imc.collectors.Collector;
  21 import org.strongswan.android.logic.imc.collectors.DeviceIdCollector;
  22 import org.strongswan.android.logic.imc.collectors.InstalledPackagesCollector;
  23 import org.strongswan.android.logic.imc.collectors.PortFilterCollector;
  24 import org.strongswan.android.logic.imc.collectors.ProductInformationCollector;
  25 import org.strongswan.android.logic.imc.collectors.SettingsCollector;
  26 import org.strongswan.android.logic.imc.collectors.StringVersionCollector;
  27
  28 import android.content.Context;
  29
  30 public class AndroidImc
  31 {
  32         private final Context mContext;
  33
  34         public AndroidImc(Context context)
  35         {
  36                 mContext = context;
  37         }
  38
  39         /**
  40          * Get a measurement (the binary encoding of the requested attribute) for
  41          * the given vendor specific attribute type.
  42          *
  43          * @param vendor vendor ID
  44          * @param type vendor specific attribute type
  45          * @return encoded attribute, or null if not available or failed
  46          */
  47         public byte[] getMeasurement(int vendor, int type)
  48         {
  49                 return getMeasurement(vendor, type, null);
  50         }
  51
  52         /**
  53          * Get a measurement (the binary encoding of the requested attribute) for
  54          * the given vendor specific attribute type.
  55          *
  56          * @param vendor vendor ID
  57          * @param type vendor specific attribute type
  58          * @param args optional arguments for a measurement
  59          * @return encoded attribute, or null if not available or failed
  60          */
  61         public byte[] getMeasurement(int vendor, int type, String[] args)
  62         {
  63                 AttributeType attributeType = AttributeType.fromValues(vendor, type);
  64                 Collector collector = null;
  65
  66                 switch (attributeType)
  67                 {
  68                         case IETF_PRODUCT_INFORMATION:
  69                                 collector = new ProductInformationCollector();
  70                                 break;
  71                         case IETF_STRING_VERSION:
  72                                 collector = new StringVersionCollector();
  73                                 break;
  74                         case IETF_PORT_FILTER:
  75                                 collector = new PortFilterCollector();
  76                                 break;
  77                         case IETF_INSTALLED_PACKAGES:
  78                                 collector = new InstalledPackagesCollector(mContext);
  79                                 break;
  80                         case ITA_SETTINGS:
  81                                 collector = new SettingsCollector(mContext, args);
  82                                 break;
  83                         case ITA_DEVICE_ID:
  84                                 collector = new DeviceIdCollector(mContext);
  85                                 break;
  86                         default:
  87                                 break;
  88                 }
  89                 if (collector != null)
  90                 {
  91                         Attribute attribute = collector.getMeasurement();
  92                         if (attribute != null)
  93                         {
  94                                 return attribute.getEncoding();
  95                         }
  96                 }
  97                 return null;
  98         }
  99 }