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      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 }
     93