VirtualNetwork.cpp revision 89dad013e4dd98434b0409a84567f38782894029 
1/*
2 * Copyright (C) 2014 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 "VirtualNetwork.h"
18
19#include "RouteController.h"
20
21#define LOG_TAG "Netd"
22#include "log/log.h"
23
24VirtualNetwork::VirtualNetwork(unsigned netId): Network(netId) {
25}
26
27VirtualNetwork::~VirtualNetwork() {
28}
29
30int VirtualNetwork::addInterface(const std::string& interface) {
31    if (hasInterface(interface)) {
32        return 0;
33    }
34    if (int ret = RouteController::addInterfaceToVpn(mNetId, interface.c_str(), mUidRanges)) {
35        ALOGE("failed to add interface %s to VPN netId %u", interface.c_str(), mNetId);
36        return ret;
37    }
38    mInterfaces.insert(interface);
39    return 0;
40}
41
42int VirtualNetwork::removeInterface(const std::string& interface) {
43    if (!hasInterface(interface)) {
44        return 0;
45    }
46    if (int ret = RouteController::removeInterfaceFromVpn(mNetId, interface.c_str(), mUidRanges)) {
47        ALOGE("failed to remove interface %s from VPN netId %u", interface.c_str(), mNetId);
48        return ret;
49    }
50    mInterfaces.erase(interface);
51    return 0;
52}
53
54Network::Type VirtualNetwork::getType() const {
55    return VIRTUAL;
56}
57
58int VirtualNetwork::addUsers(const UidRanges& uidRanges) {
59    for (const std::string& interface : mInterfaces) {
60        if (int ret = RouteController::addUsersToVpn(mNetId, interface.c_str(), uidRanges)) {
61            ALOGE("failed to add users on interface %s of netId %u", interface.c_str(), mNetId);
62            return ret;
63        }
64    }
65    mUidRanges.add(uidRanges);
66    return 0;
67}
68
69int VirtualNetwork::removeUsers(const UidRanges& uidRanges) {
70    for (const std::string& interface : mInterfaces) {
71        if (int ret = RouteController::removeUsersFromVpn(mNetId, interface.c_str(), uidRanges)) {
72            ALOGE("failed to remove users on interface %s of netId %u", interface.c_str(), mNetId);
73            return ret;
74        }
75    }
76    mUidRanges.remove(uidRanges);
77    return 0;
78}
79