pepper_network_manager.cc revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "remoting/client/plugin/pepper_network_manager.h"
6
7#include "base/bind.h"
8#include "base/location.h"
9#include "base/single_thread_task_runner.h"
10#include "base/thread_task_runner_handle.h"
11#include "ppapi/cpp/module.h"
12#include "ppapi/cpp/private/network_list_private.h"
13#include "ppapi/cpp/private/net_address_private.h"
14
15namespace remoting {
16
17PepperNetworkManager::PepperNetworkManager(const pp::InstanceHandle& instance)
18    : monitor_(instance, &PepperNetworkManager::OnNetworkListCallbackHandler,
19               this),
20      start_count_(0),
21      network_list_received_(false),
22      weak_factory_(this) {
23}
24
25PepperNetworkManager::~PepperNetworkManager() {
26  DCHECK(!start_count_);
27}
28
29void PepperNetworkManager::StartUpdating() {
30  if (network_list_received_) {
31    // Post a task to avoid reentrancy.
32    base::ThreadTaskRunnerHandle::Get()->PostTask(
33        FROM_HERE, base::Bind(&PepperNetworkManager::SendNetworksChangedSignal,
34                              weak_factory_.GetWeakPtr()));
35  }
36  ++start_count_;
37}
38
39void PepperNetworkManager::StopUpdating() {
40  DCHECK_GT(start_count_, 0);
41  --start_count_;
42}
43
44// static
45void PepperNetworkManager::OnNetworkListCallbackHandler(
46    void* user_data,
47    PP_Resource list_resource) {
48  PepperNetworkManager* object = static_cast<PepperNetworkManager*>(user_data);
49  pp::NetworkListPrivate list(pp::PASS_REF, list_resource);
50  object->OnNetworkList(list);
51}
52
53void PepperNetworkManager::OnNetworkList(const pp::NetworkListPrivate& list) {
54  network_list_received_ = true;
55
56  std::vector<talk_base::Network*> networks;
57  size_t count = list.GetCount();
58  for (size_t i = 0; i < count; i++) {
59    std::vector<PP_NetAddress_Private> addresses;
60    list.GetIpAddresses(i, &addresses);
61
62    if (addresses.size() == 0)
63      continue;
64
65    char address_bytes[sizeof(in6_addr)];
66    if (!pp::NetAddressPrivate::GetAddress(
67            addresses[0], &address_bytes, sizeof(address_bytes))) {
68      LOG(ERROR) << "Failed to get address for network interface.";
69      continue;
70    }
71
72    int prefix_length;
73
74    // TODO(sergeyu): Copy all addresses, not only the first one.
75    talk_base::IPAddress address;
76    switch (pp::NetAddressPrivate::GetFamily(addresses[0])) {
77      case PP_NETADDRESSFAMILY_PRIVATE_IPV4: {
78        in_addr* address_ipv4 = reinterpret_cast<in_addr*>(address_bytes);
79        address = talk_base::IPAddress(*address_ipv4);
80        prefix_length = sizeof(in_addr) * 8;
81        break;
82      }
83
84      case PP_NETADDRESSFAMILY_PRIVATE_IPV6: {
85        in6_addr* address_ipv6 = reinterpret_cast<in6_addr*>(address_bytes);
86        address = talk_base::IPAddress(*address_ipv6);
87        prefix_length = sizeof(in6_addr) * 8;
88        break;
89      }
90
91      default:
92        LOG(WARNING) << "Skipping address with unknown family: "
93                     << pp::NetAddressPrivate::GetFamily(addresses[0]);
94        continue;
95    }
96
97    talk_base::Network* network = new talk_base::Network(
98        list.GetName(i), list.GetDisplayName(i), address, prefix_length);
99    network->AddIP(address);
100    networks.push_back(network);
101  }
102
103  bool changed = false;
104  MergeNetworkList(networks, &changed);
105  if (changed)
106    SignalNetworksChanged();
107}
108
109void PepperNetworkManager::SendNetworksChangedSignal() {
110  SignalNetworksChanged();
111}
112
113}  // namespace remoting
114