henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2009 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_BASE_FAKENETWORK_H_ |
| 12 | #define WEBRTC_BASE_FAKENETWORK_H_ |
| 13 | |
| 14 | #include <string> |
| 15 | #include <vector> |
| 16 | |
| 17 | #include "webrtc/base/network.h" |
| 18 | #include "webrtc/base/messagehandler.h" |
| 19 | #include "webrtc/base/socketaddress.h" |
| 20 | #include "webrtc/base/stringencode.h" |
| 21 | #include "webrtc/base/thread.h" |
| 22 | |
| 23 | namespace rtc { |
| 24 | |
| 25 | const int kFakeIPv4NetworkPrefixLength = 24; |
| 26 | const int kFakeIPv6NetworkPrefixLength = 64; |
| 27 | |
| 28 | // Fake network manager that allows us to manually specify the IPs to use. |
| 29 | class FakeNetworkManager : public NetworkManagerBase, |
| 30 | public MessageHandler { |
| 31 | public: |
| 32 | FakeNetworkManager() |
| 33 | : thread_(Thread::Current()), |
| 34 | next_index_(0), |
| 35 | started_(false), |
| 36 | sent_first_update_(false) { |
| 37 | } |
| 38 | |
| 39 | typedef std::vector<SocketAddress> IfaceList; |
| 40 | |
| 41 | void AddInterface(const SocketAddress& iface) { |
| 42 | // ensure a unique name for the interface |
| 43 | SocketAddress address("test" + rtc::ToString(next_index_++), 0); |
| 44 | address.SetResolvedIP(iface.ipaddr()); |
| 45 | ifaces_.push_back(address); |
| 46 | DoUpdateNetworks(); |
| 47 | } |
| 48 | |
| 49 | void RemoveInterface(const SocketAddress& iface) { |
| 50 | for (IfaceList::iterator it = ifaces_.begin(); |
| 51 | it != ifaces_.end(); ++it) { |
| 52 | if (it->EqualIPs(iface)) { |
| 53 | ifaces_.erase(it); |
| 54 | break; |
| 55 | } |
| 56 | } |
| 57 | DoUpdateNetworks(); |
| 58 | } |
| 59 | |
| 60 | virtual void StartUpdating() { |
| 61 | if (started_) { |
| 62 | if (sent_first_update_) |
| 63 | SignalNetworksChanged(); |
| 64 | return; |
| 65 | } |
| 66 | |
| 67 | started_ = true; |
| 68 | sent_first_update_ = false; |
| 69 | thread_->Post(this); |
| 70 | } |
| 71 | |
| 72 | virtual void StopUpdating() { |
| 73 | started_ = false; |
| 74 | } |
| 75 | |
| 76 | // MessageHandler interface. |
| 77 | virtual void OnMessage(Message* msg) { |
| 78 | DoUpdateNetworks(); |
| 79 | } |
| 80 | |
| 81 | private: |
| 82 | void DoUpdateNetworks() { |
| 83 | if (!started_) |
| 84 | return; |
| 85 | std::vector<Network*> networks; |
| 86 | for (IfaceList::iterator it = ifaces_.begin(); |
| 87 | it != ifaces_.end(); ++it) { |
| 88 | int prefix_length = 0; |
| 89 | if (it->ipaddr().family() == AF_INET) { |
| 90 | prefix_length = kFakeIPv4NetworkPrefixLength; |
| 91 | } else if (it->ipaddr().family() == AF_INET6) { |
| 92 | prefix_length = kFakeIPv6NetworkPrefixLength; |
| 93 | } |
| 94 | IPAddress prefix = TruncateIP(it->ipaddr(), prefix_length); |
| 95 | scoped_ptr<Network> net(new Network(it->hostname(), |
| 96 | it->hostname(), |
| 97 | prefix, |
| 98 | prefix_length)); |
| 99 | net->AddIP(it->ipaddr()); |
| 100 | networks.push_back(net.release()); |
| 101 | } |
| 102 | bool changed; |
| 103 | MergeNetworkList(networks, &changed); |
| 104 | if (changed || !sent_first_update_) { |
| 105 | SignalNetworksChanged(); |
| 106 | sent_first_update_ = true; |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | Thread* thread_; |
| 111 | IfaceList ifaces_; |
| 112 | int next_index_; |
| 113 | bool started_; |
| 114 | bool sent_first_update_; |
| 115 | }; |
| 116 | |
| 117 | } // namespace rtc |
| 118 | |
| 119 | #endif // WEBRTC_BASE_FAKENETWORK_H_ |