system/core/nexus/VpnController.cpp

   1 /*
   2  * Copyright (C) 2008 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <stdio.h>
  18 #include <string.h>
  19 #include <stdlib.h>
  20 #include <errno.h>
  21 #include <sys/socket.h>
  22 #include <netinet/in.h>
  23 #include <arpa/inet.h>
  24
  25 #include "PropertyManager.h"
  26 #include "VpnController.h"
  27
  28 VpnController::VpnController(PropertyManager *propmngr,
  29                              IControllerHandler *handlers) :
  30                Controller("vpn", propmngr, handlers) {
  31     mEnabled = false;
  32
  33     mStaticProperties.propEnabled = new VpnEnabledProperty(this);
  34     mDynamicProperties.propGateway = new IPV4AddressPropertyHelper("Gateway",
  35                                                                    false,
  36                                                                    &mGateway);
  37 }
  38
  39 int VpnController::start() {
  40     mPropMngr->attachProperty("vpn", mStaticProperties.propEnabled);
  41     return 0;
  42 }
  43
  44 int VpnController::stop() {
  45     mPropMngr->detachProperty("vpn", mStaticProperties.propEnabled);
  46     return 0;
  47 }
  48
  49 VpnController::VpnIntegerProperty::VpnIntegerProperty(VpnController *c,
  50                                                       const char *name,
  51                                                       bool ro,
  52                                                       int elements) :
  53                 IntegerProperty(name, ro, elements) {
  54     mVc = c;
  55 }
  56
  57 VpnController::VpnStringProperty::VpnStringProperty(VpnController *c,
  58                                                     const char *name,
  59                                                     bool ro, int elements) :
  60                 StringProperty(name, ro, elements) {
  61     mVc = c;
  62 }
  63
  64 VpnController::VpnIPV4AddressProperty::VpnIPV4AddressProperty(VpnController *c,
  65                                                               const char *name,
  66                                                               bool ro, int elements) :
  67                 IPV4AddressProperty(name, ro, elements) {
  68     mVc = c;
  69 }
  70
  71 VpnController::VpnEnabledProperty::VpnEnabledProperty(VpnController *c) :
  72                 VpnIntegerProperty(c, "Enabled", false, 1) {
  73 }
  74 int VpnController::VpnEnabledProperty::get(int idx, int *buffer) {
  75     *buffer = mVc->mEnabled;
  76     return 0;
  77 }
  78 int VpnController::VpnEnabledProperty::set(int idx, int value) {
  79     int rc;
  80     if (!value) {
  81         mVc->mPropMngr->detachProperty("vpn", mVc->mDynamicProperties.propGateway);
  82         rc = mVc->disable();
  83     } else {
  84         rc = mVc->enable();
  85         if (!rc) {
  86             mVc->mPropMngr->attachProperty("vpn", mVc->mDynamicProperties.propGateway);
  87         }
  88     }
  89     if (!rc)
  90         mVc->mEnabled = value;
  91     return rc;
  92 }