henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2004 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 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 11 | #include "rtc_base/network.h" |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 12 | |
| 13 | #if defined(WEBRTC_POSIX) |
| 14 | // linux/if.h can't be included at the same time as the posix sys/if.h, and |
| 15 | // it's transitively required by linux/route.h, so include that version on |
| 16 | // linux instead of the standard posix one. |
| 17 | #if defined(WEBRTC_LINUX) |
| 18 | #include <linux/if.h> |
| 19 | #include <linux/route.h> |
| 20 | #elif !defined(__native_client__) |
| 21 | #include <net/if.h> |
| 22 | #endif |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 23 | #endif // WEBRTC_POSIX |
| 24 | |
| 25 | #if defined(WEBRTC_WIN) |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 26 | #include "rtc_base/win32.h" |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 27 | #include <Iphlpapi.h> |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 28 | #elif !defined(__native_client__) |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 29 | #include "rtc_base/ifaddrs_converter.h" |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 30 | #endif |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | |
| 34 | #include <algorithm> |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 35 | #include <memory> |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 36 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 37 | #include "rtc_base/checks.h" |
| 38 | #include "rtc_base/logging.h" |
| 39 | #include "rtc_base/networkmonitor.h" |
| 40 | #include "rtc_base/socket.h" // includes something that makes windows happy |
| 41 | #include "rtc_base/stream.h" |
| 42 | #include "rtc_base/stringencode.h" |
| 43 | #include "rtc_base/thread.h" |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 44 | |
| 45 | namespace rtc { |
| 46 | namespace { |
| 47 | |
Peter Boström | 0c4e06b | 2015-10-07 12:23:21 +0200 | [diff] [blame] | 48 | const uint32_t kUpdateNetworksMessage = 1; |
| 49 | const uint32_t kSignalNetworksMessage = 2; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 50 | |
| 51 | // Fetch list of networks every two seconds. |
| 52 | const int kNetworksUpdateIntervalMs = 2000; |
| 53 | |
| 54 | const int kHighestNetworkPreference = 127; |
| 55 | |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 56 | typedef struct { |
| 57 | Network* net; |
guoweis@webrtc.org | fa60398 | 2014-09-09 23:42:40 +0000 | [diff] [blame] | 58 | std::vector<InterfaceAddress> ips; |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 59 | } AddressList; |
| 60 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 61 | bool CompareNetworks(const Network* a, const Network* b) { |
| 62 | if (a->prefix_length() == b->prefix_length()) { |
| 63 | if (a->name() == b->name()) { |
| 64 | return a->prefix() < b->prefix(); |
| 65 | } |
| 66 | } |
| 67 | return a->name() < b->name(); |
| 68 | } |
| 69 | |
| 70 | bool SortNetworks(const Network* a, const Network* b) { |
| 71 | // Network types will be preferred above everything else while sorting |
| 72 | // Networks. |
| 73 | |
| 74 | // Networks are sorted first by type. |
| 75 | if (a->type() != b->type()) { |
| 76 | return a->type() < b->type(); |
| 77 | } |
| 78 | |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 79 | IPAddress ip_a = a->GetBestIP(); |
| 80 | IPAddress ip_b = b->GetBestIP(); |
| 81 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 82 | // After type, networks are sorted by IP address precedence values |
| 83 | // from RFC 3484-bis |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 84 | if (IPAddressPrecedence(ip_a) != IPAddressPrecedence(ip_b)) { |
| 85 | return IPAddressPrecedence(ip_a) > IPAddressPrecedence(ip_b); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | // TODO(mallinath) - Add VPN and Link speed conditions while sorting. |
| 89 | |
| 90 | // Networks are sorted last by key. |
deadbeef | 3427f53 | 2017-07-26 16:09:33 -0700 | [diff] [blame] | 91 | return a->key() < b->key(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | std::string AdapterTypeToString(AdapterType type) { |
| 95 | switch (type) { |
| 96 | case ADAPTER_TYPE_UNKNOWN: |
| 97 | return "Unknown"; |
| 98 | case ADAPTER_TYPE_ETHERNET: |
| 99 | return "Ethernet"; |
| 100 | case ADAPTER_TYPE_WIFI: |
| 101 | return "Wifi"; |
| 102 | case ADAPTER_TYPE_CELLULAR: |
| 103 | return "Cellular"; |
| 104 | case ADAPTER_TYPE_VPN: |
| 105 | return "VPN"; |
phoglund@webrtc.org | 006521d | 2015-02-12 09:23:59 +0000 | [diff] [blame] | 106 | case ADAPTER_TYPE_LOOPBACK: |
| 107 | return "Loopback"; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 108 | default: |
nisse | eb4ca4e | 2017-01-12 02:24:27 -0800 | [diff] [blame] | 109 | RTC_NOTREACHED() << "Invalid type " << type; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 110 | return std::string(); |
| 111 | } |
| 112 | } |
| 113 | |
thakis | 06689a1 | 2015-12-30 15:05:30 -0800 | [diff] [blame] | 114 | #if !defined(__native_client__) |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 115 | bool IsIgnoredIPv6(const InterfaceAddress& ip) { |
guoweis@webrtc.org | b91d0f5 | 2015-03-17 14:43:20 +0000 | [diff] [blame] | 116 | if (ip.family() != AF_INET6) { |
| 117 | return false; |
| 118 | } |
| 119 | |
| 120 | // Link-local addresses require scope id to be bound successfully. |
| 121 | // However, our IPAddress structure doesn't carry that so the |
| 122 | // information is lost and causes binding failure. |
| 123 | if (IPIsLinkLocal(ip)) { |
| 124 | return true; |
| 125 | } |
| 126 | |
| 127 | // Any MAC based IPv6 should be avoided to prevent the MAC tracking. |
| 128 | if (IPIsMacBased(ip)) { |
| 129 | return true; |
| 130 | } |
| 131 | |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 132 | // Ignore deprecated IPv6. |
| 133 | if (ip.ipv6_flags() & IPV6_ADDRESS_FLAG_DEPRECATED) { |
| 134 | return true; |
| 135 | } |
| 136 | |
guoweis@webrtc.org | b91d0f5 | 2015-03-17 14:43:20 +0000 | [diff] [blame] | 137 | return false; |
| 138 | } |
thakis | 06689a1 | 2015-12-30 15:05:30 -0800 | [diff] [blame] | 139 | #endif // !defined(__native_client__) |
guoweis@webrtc.org | b91d0f5 | 2015-03-17 14:43:20 +0000 | [diff] [blame] | 140 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 141 | } // namespace |
| 142 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 143 | // These addresses are used as the targets to find out the default local address |
| 144 | // on a multi-homed endpoint. They are actually DNS servers. |
| 145 | const char kPublicIPv4Host[] = "8.8.8.8"; |
| 146 | const char kPublicIPv6Host[] = "2001:4860:4860::8888"; |
| 147 | const int kPublicPort = 53; // DNS port. |
| 148 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 149 | std::string MakeNetworkKey(const std::string& name, const IPAddress& prefix, |
| 150 | int prefix_length) { |
| 151 | std::ostringstream ost; |
| 152 | ost << name << "%" << prefix.ToString() << "/" << prefix_length; |
| 153 | return ost.str(); |
| 154 | } |
| 155 | |
| 156 | NetworkManager::NetworkManager() { |
| 157 | } |
| 158 | |
| 159 | NetworkManager::~NetworkManager() { |
| 160 | } |
| 161 | |
Guo-wei Shieh | 86cb923 | 2015-08-19 10:57:53 -0700 | [diff] [blame] | 162 | NetworkManager::EnumerationPermission NetworkManager::enumeration_permission() |
| 163 | const { |
guoweis | ea1012b | 2015-08-21 09:06:28 -0700 | [diff] [blame] | 164 | return ENUMERATION_ALLOWED; |
Guo-wei Shieh | 86cb923 | 2015-08-19 10:57:53 -0700 | [diff] [blame] | 165 | } |
| 166 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 167 | bool NetworkManager::GetDefaultLocalAddress(int family, IPAddress* addr) const { |
| 168 | return false; |
| 169 | } |
| 170 | |
guoweis@webrtc.org | 2444d96 | 2015-01-30 00:09:28 +0000 | [diff] [blame] | 171 | NetworkManagerBase::NetworkManagerBase() |
guoweis | ea1012b | 2015-08-21 09:06:28 -0700 | [diff] [blame] | 172 | : enumeration_permission_(NetworkManager::ENUMERATION_ALLOWED), |
Guo-wei Shieh | 47872ec | 2015-08-19 10:32:46 -0700 | [diff] [blame] | 173 | ipv6_enabled_(true) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | NetworkManagerBase::~NetworkManagerBase() { |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 177 | for (const auto& kv : networks_map_) { |
| 178 | delete kv.second; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 179 | } |
| 180 | } |
| 181 | |
Guo-wei Shieh | 47872ec | 2015-08-19 10:32:46 -0700 | [diff] [blame] | 182 | NetworkManager::EnumerationPermission |
| 183 | NetworkManagerBase::enumeration_permission() const { |
| 184 | return enumeration_permission_; |
| 185 | } |
| 186 | |
guoweis@webrtc.org | f358aea | 2015-02-18 18:44:01 +0000 | [diff] [blame] | 187 | void NetworkManagerBase::GetAnyAddressNetworks(NetworkList* networks) { |
| 188 | if (!ipv4_any_address_network_) { |
| 189 | const rtc::IPAddress ipv4_any_address(INADDR_ANY); |
| 190 | ipv4_any_address_network_.reset( |
| 191 | new rtc::Network("any", "any", ipv4_any_address, 0)); |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 192 | ipv4_any_address_network_->set_default_local_address_provider(this); |
guoweis@webrtc.org | f358aea | 2015-02-18 18:44:01 +0000 | [diff] [blame] | 193 | ipv4_any_address_network_->AddIP(ipv4_any_address); |
| 194 | } |
| 195 | networks->push_back(ipv4_any_address_network_.get()); |
| 196 | |
| 197 | if (ipv6_enabled()) { |
| 198 | if (!ipv6_any_address_network_) { |
| 199 | const rtc::IPAddress ipv6_any_address(in6addr_any); |
| 200 | ipv6_any_address_network_.reset( |
| 201 | new rtc::Network("any", "any", ipv6_any_address, 0)); |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 202 | ipv6_any_address_network_->set_default_local_address_provider(this); |
guoweis@webrtc.org | f358aea | 2015-02-18 18:44:01 +0000 | [diff] [blame] | 203 | ipv6_any_address_network_->AddIP(ipv6_any_address); |
| 204 | } |
| 205 | networks->push_back(ipv6_any_address_network_.get()); |
| 206 | } |
| 207 | } |
| 208 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 209 | void NetworkManagerBase::GetNetworks(NetworkList* result) const { |
guoweis@webrtc.org | 2444d96 | 2015-01-30 00:09:28 +0000 | [diff] [blame] | 210 | result->clear(); |
deadbeef | 3427f53 | 2017-07-26 16:09:33 -0700 | [diff] [blame] | 211 | result->insert(result->begin(), networks_.begin(), networks_.end()); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | void NetworkManagerBase::MergeNetworkList(const NetworkList& new_networks, |
| 215 | bool* changed) { |
guoweis@webrtc.org | a094cac | 2015-01-28 19:34:05 +0000 | [diff] [blame] | 216 | NetworkManager::Stats stats; |
| 217 | MergeNetworkList(new_networks, changed, &stats); |
| 218 | } |
| 219 | |
| 220 | void NetworkManagerBase::MergeNetworkList(const NetworkList& new_networks, |
| 221 | bool* changed, |
| 222 | NetworkManager::Stats* stats) { |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 223 | *changed = false; |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 224 | // AddressList in this map will track IP addresses for all Networks |
| 225 | // with the same key. |
| 226 | std::map<std::string, AddressList> consolidated_address_list; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 227 | NetworkList list(new_networks); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 228 | std::sort(list.begin(), list.end(), CompareNetworks); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 229 | // First, build a set of network-keys to the ipaddresses. |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 230 | for (Network* network : list) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 231 | bool might_add_to_merged_list = false; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 232 | std::string key = MakeNetworkKey(network->name(), |
| 233 | network->prefix(), |
| 234 | network->prefix_length()); |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 235 | if (consolidated_address_list.find(key) == |
| 236 | consolidated_address_list.end()) { |
| 237 | AddressList addrlist; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 238 | addrlist.net = network; |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 239 | consolidated_address_list[key] = addrlist; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 240 | might_add_to_merged_list = true; |
| 241 | } |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 242 | const std::vector<InterfaceAddress>& addresses = network->GetIPs(); |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 243 | AddressList& current_list = consolidated_address_list[key]; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 244 | for (const InterfaceAddress& address : addresses) { |
| 245 | current_list.ips.push_back(address); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 246 | } |
| 247 | if (!might_add_to_merged_list) { |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 248 | delete network; |
guoweis@webrtc.org | a094cac | 2015-01-28 19:34:05 +0000 | [diff] [blame] | 249 | } else { |
| 250 | if (current_list.ips[0].family() == AF_INET) { |
| 251 | stats->ipv4_network_count++; |
| 252 | } else { |
nisse | ede5da4 | 2017-01-12 05:15:36 -0800 | [diff] [blame] | 253 | RTC_DCHECK(current_list.ips[0].family() == AF_INET6); |
guoweis@webrtc.org | a094cac | 2015-01-28 19:34:05 +0000 | [diff] [blame] | 254 | stats->ipv6_network_count++; |
| 255 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 256 | } |
| 257 | } |
| 258 | |
| 259 | // Next, look for existing network objects to re-use. |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 260 | // Result of Network merge. Element in this list should have unique key. |
| 261 | NetworkList merged_list; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 262 | for (const auto& kv : consolidated_address_list) { |
| 263 | const std::string& key = kv.first; |
| 264 | Network* net = kv.second.net; |
| 265 | auto existing = networks_map_.find(key); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 266 | if (existing == networks_map_.end()) { |
| 267 | // This network is new. Place it in the network map. |
| 268 | merged_list.push_back(net); |
| 269 | networks_map_[key] = net; |
honghaiz | a0c44ea | 2016-03-23 16:07:48 -0700 | [diff] [blame] | 270 | net->set_id(next_available_network_id_++); |
guoweis@webrtc.org | 4bbd3c8 | 2014-09-09 13:54:45 +0000 | [diff] [blame] | 271 | // Also, we might have accumulated IPAddresses from the first |
| 272 | // step, set it here. |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 273 | net->SetIPs(kv.second.ips, true); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 274 | *changed = true; |
| 275 | } else { |
| 276 | // This network exists in the map already. Reset its IP addresses. |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 277 | Network* existing_net = existing->second; |
| 278 | *changed = existing_net->SetIPs(kv.second.ips, *changed); |
| 279 | merged_list.push_back(existing_net); |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 280 | if (net->type() != ADAPTER_TYPE_UNKNOWN && |
| 281 | net->type() != existing_net->type()) { |
| 282 | existing_net->set_type(net->type()); |
| 283 | *changed = true; |
| 284 | } |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 285 | // If the existing network was not active, networks have changed. |
| 286 | if (!existing_net->active()) { |
| 287 | *changed = true; |
| 288 | } |
nisse | ede5da4 | 2017-01-12 05:15:36 -0800 | [diff] [blame] | 289 | RTC_DCHECK(net->active()); |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 290 | if (existing_net != net) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 291 | delete net; |
| 292 | } |
| 293 | } |
| 294 | } |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 295 | // It may still happen that the merged list is a subset of |networks_|. |
| 296 | // To detect this change, we compare their sizes. |
| 297 | if (merged_list.size() != networks_.size()) { |
| 298 | *changed = true; |
| 299 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 300 | |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 301 | // If the network list changes, we re-assign |networks_| to the merged list |
| 302 | // and re-sort it. |
guoweis@webrtc.org | a094cac | 2015-01-28 19:34:05 +0000 | [diff] [blame] | 303 | if (*changed) { |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 304 | networks_ = merged_list; |
| 305 | // Reset the active states of all networks. |
| 306 | for (const auto& kv : networks_map_) { |
honghaiz | e3c6c82 | 2016-02-17 13:00:28 -0800 | [diff] [blame] | 307 | Network* network = kv.second; |
| 308 | // If |network| is in the newly generated |networks_|, it is active. |
| 309 | bool found = std::find(networks_.begin(), networks_.end(), network) != |
| 310 | networks_.end(); |
| 311 | network->set_active(found); |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 312 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 313 | std::sort(networks_.begin(), networks_.end(), SortNetworks); |
| 314 | // Now network interfaces are sorted, we should set the preference value |
| 315 | // for each of the interfaces we are planning to use. |
| 316 | // Preference order of network interfaces might have changed from previous |
| 317 | // sorting due to addition of higher preference network interface. |
| 318 | // Since we have already sorted the network interfaces based on our |
| 319 | // requirements, we will just assign a preference value starting with 127, |
| 320 | // in decreasing order. |
| 321 | int pref = kHighestNetworkPreference; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 322 | for (Network* network : networks_) { |
| 323 | network->set_preference(pref); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 324 | if (pref > 0) { |
| 325 | --pref; |
| 326 | } else { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 327 | RTC_LOG(LS_ERROR) << "Too many network interfaces to handle!"; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 328 | break; |
| 329 | } |
| 330 | } |
| 331 | } |
| 332 | } |
| 333 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 334 | void NetworkManagerBase::set_default_local_addresses(const IPAddress& ipv4, |
| 335 | const IPAddress& ipv6) { |
| 336 | if (ipv4.family() == AF_INET) { |
| 337 | default_local_ipv4_address_ = ipv4; |
| 338 | } |
| 339 | if (ipv6.family() == AF_INET6) { |
| 340 | default_local_ipv6_address_ = ipv6; |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | bool NetworkManagerBase::GetDefaultLocalAddress(int family, |
| 345 | IPAddress* ipaddr) const { |
Guo-wei Shieh | a34c39e | 2015-11-25 13:12:26 -0800 | [diff] [blame] | 346 | if (family == AF_INET && !default_local_ipv4_address_.IsNil()) { |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 347 | *ipaddr = default_local_ipv4_address_; |
| 348 | return true; |
Guo-wei Shieh | a34c39e | 2015-11-25 13:12:26 -0800 | [diff] [blame] | 349 | } else if (family == AF_INET6 && !default_local_ipv6_address_.IsNil()) { |
honghaiz | af83fe6 | 2016-04-18 14:50:44 -0700 | [diff] [blame] | 350 | Network* ipv6_network = GetNetworkFromAddress(default_local_ipv6_address_); |
| 351 | if (ipv6_network) { |
| 352 | // If the default ipv6 network's BestIP is different than |
| 353 | // default_local_ipv6_address_, use it instead. |
| 354 | // This is to prevent potential IP address leakage. See WebRTC bug 5376. |
| 355 | *ipaddr = ipv6_network->GetBestIP(); |
| 356 | } else { |
| 357 | *ipaddr = default_local_ipv6_address_; |
| 358 | } |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 359 | return true; |
| 360 | } |
| 361 | return false; |
| 362 | } |
| 363 | |
honghaiz | af83fe6 | 2016-04-18 14:50:44 -0700 | [diff] [blame] | 364 | Network* NetworkManagerBase::GetNetworkFromAddress( |
| 365 | const rtc::IPAddress& ip) const { |
| 366 | for (Network* network : networks_) { |
| 367 | const auto& ips = network->GetIPs(); |
| 368 | if (std::find_if(ips.begin(), ips.end(), |
| 369 | [ip](const InterfaceAddress& existing_ip) { |
| 370 | return ip == static_cast<rtc::IPAddress>(existing_ip); |
| 371 | }) != ips.end()) { |
| 372 | return network; |
| 373 | } |
| 374 | } |
| 375 | return nullptr; |
| 376 | } |
| 377 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 378 | BasicNetworkManager::BasicNetworkManager() |
deadbeef | 37f5ecf | 2017-02-27 14:06:41 -0800 | [diff] [blame] | 379 | : thread_(nullptr), |
| 380 | sent_first_update_(false), |
| 381 | start_count_(0), |
| 382 | ignore_non_default_routes_(false) {} |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 383 | |
| 384 | BasicNetworkManager::~BasicNetworkManager() { |
| 385 | } |
| 386 | |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 387 | void BasicNetworkManager::OnNetworksChanged() { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 388 | RTC_LOG(LS_INFO) << "Network change was observed"; |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 389 | UpdateNetworksOnce(); |
| 390 | } |
| 391 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 392 | #if defined(__native_client__) |
| 393 | |
| 394 | bool BasicNetworkManager::CreateNetworks(bool include_ignored, |
| 395 | NetworkList* networks) const { |
nisse | c80e741 | 2017-01-11 05:56:46 -0800 | [diff] [blame] | 396 | RTC_NOTREACHED(); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 397 | RTC_LOG(LS_WARNING) << "BasicNetworkManager doesn't work on NaCl yet"; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 398 | return false; |
| 399 | } |
| 400 | |
| 401 | #elif defined(WEBRTC_POSIX) |
| 402 | void BasicNetworkManager::ConvertIfAddrs(struct ifaddrs* interfaces, |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 403 | IfAddrsConverter* ifaddrs_converter, |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 404 | bool include_ignored, |
| 405 | NetworkList* networks) const { |
| 406 | NetworkMap current_networks; |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 407 | |
deadbeef | 37f5ecf | 2017-02-27 14:06:41 -0800 | [diff] [blame] | 408 | for (struct ifaddrs* cursor = interfaces; cursor != nullptr; |
| 409 | cursor = cursor->ifa_next) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 410 | IPAddress prefix; |
| 411 | IPAddress mask; |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 412 | InterfaceAddress ip; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 413 | int scope_id = 0; |
| 414 | |
| 415 | // Some interfaces may not have address assigned. |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 416 | if (!cursor->ifa_addr || !cursor->ifa_netmask) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 417 | continue; |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 418 | } |
| 419 | // Skip ones which are down. |
| 420 | if (!(cursor->ifa_flags & IFF_RUNNING)) { |
| 421 | continue; |
| 422 | } |
| 423 | // Skip unknown family. |
| 424 | if (cursor->ifa_addr->sa_family != AF_INET && |
| 425 | cursor->ifa_addr->sa_family != AF_INET6) { |
| 426 | continue; |
| 427 | } |
| 428 | // Skip IPv6 if not enabled. |
| 429 | if (cursor->ifa_addr->sa_family == AF_INET6 && !ipv6_enabled()) { |
| 430 | continue; |
| 431 | } |
| 432 | // Convert to InterfaceAddress. |
| 433 | if (!ifaddrs_converter->ConvertIfAddrsToIPAddress(cursor, &ip, &mask)) { |
| 434 | continue; |
| 435 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 436 | |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 437 | // Special case for IPv6 address. |
| 438 | if (cursor->ifa_addr->sa_family == AF_INET6) { |
| 439 | if (IsIgnoredIPv6(ip)) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 440 | continue; |
| 441 | } |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 442 | scope_id = |
| 443 | reinterpret_cast<sockaddr_in6*>(cursor->ifa_addr)->sin6_scope_id; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 444 | } |
| 445 | |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 446 | AdapterType adapter_type = ADAPTER_TYPE_UNKNOWN; |
| 447 | if (cursor->ifa_flags & IFF_LOOPBACK) { |
| 448 | adapter_type = ADAPTER_TYPE_LOOPBACK; |
| 449 | } else { |
| 450 | adapter_type = GetAdapterTypeFromName(cursor->ifa_name); |
| 451 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 452 | int prefix_length = CountIPMaskBits(mask); |
| 453 | prefix = TruncateIP(ip, prefix_length); |
| 454 | std::string key = MakeNetworkKey(std::string(cursor->ifa_name), |
| 455 | prefix, prefix_length); |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 456 | auto iter = current_networks.find(key); |
| 457 | if (iter == current_networks.end()) { |
Noah Richards | 2e266e9 | 2015-04-07 11:51:56 -0700 | [diff] [blame] | 458 | // TODO(phoglund): Need to recognize other types as well. |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 459 | std::unique_ptr<Network> network( |
| 460 | new Network(cursor->ifa_name, cursor->ifa_name, prefix, prefix_length, |
| 461 | adapter_type)); |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 462 | network->set_default_local_address_provider(this); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 463 | network->set_scope_id(scope_id); |
| 464 | network->AddIP(ip); |
phoglund@webrtc.org | 006521d | 2015-02-12 09:23:59 +0000 | [diff] [blame] | 465 | network->set_ignored(IsIgnoredNetwork(*network)); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 466 | if (include_ignored || !network->ignored()) { |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 467 | current_networks[key] = network.get(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 468 | networks->push_back(network.release()); |
| 469 | } |
| 470 | } else { |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 471 | Network* existing_network = iter->second; |
| 472 | existing_network->AddIP(ip); |
| 473 | if (adapter_type != ADAPTER_TYPE_UNKNOWN) { |
| 474 | existing_network->set_type(adapter_type); |
| 475 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 476 | } |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | bool BasicNetworkManager::CreateNetworks(bool include_ignored, |
| 481 | NetworkList* networks) const { |
| 482 | struct ifaddrs* interfaces; |
| 483 | int error = getifaddrs(&interfaces); |
| 484 | if (error != 0) { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 485 | RTC_LOG_ERR(LERROR) << "getifaddrs failed to gather interface data: " |
| 486 | << error; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 487 | return false; |
| 488 | } |
| 489 | |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 490 | std::unique_ptr<IfAddrsConverter> ifaddrs_converter(CreateIfAddrsConverter()); |
Guo-wei Shieh | 9faf154 | 2015-12-28 14:06:55 -0800 | [diff] [blame] | 491 | ConvertIfAddrs(interfaces, ifaddrs_converter.get(), include_ignored, |
| 492 | networks); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 493 | |
| 494 | freeifaddrs(interfaces); |
| 495 | return true; |
| 496 | } |
| 497 | |
| 498 | #elif defined(WEBRTC_WIN) |
| 499 | |
| 500 | unsigned int GetPrefix(PIP_ADAPTER_PREFIX prefixlist, |
| 501 | const IPAddress& ip, IPAddress* prefix) { |
| 502 | IPAddress current_prefix; |
| 503 | IPAddress best_prefix; |
| 504 | unsigned int best_length = 0; |
| 505 | while (prefixlist) { |
| 506 | // Look for the longest matching prefix in the prefixlist. |
deadbeef | 37f5ecf | 2017-02-27 14:06:41 -0800 | [diff] [blame] | 507 | if (prefixlist->Address.lpSockaddr == nullptr || |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 508 | prefixlist->Address.lpSockaddr->sa_family != ip.family()) { |
| 509 | prefixlist = prefixlist->Next; |
| 510 | continue; |
| 511 | } |
| 512 | switch (prefixlist->Address.lpSockaddr->sa_family) { |
| 513 | case AF_INET: { |
| 514 | sockaddr_in* v4_addr = |
| 515 | reinterpret_cast<sockaddr_in*>(prefixlist->Address.lpSockaddr); |
| 516 | current_prefix = IPAddress(v4_addr->sin_addr); |
| 517 | break; |
| 518 | } |
| 519 | case AF_INET6: { |
| 520 | sockaddr_in6* v6_addr = |
| 521 | reinterpret_cast<sockaddr_in6*>(prefixlist->Address.lpSockaddr); |
| 522 | current_prefix = IPAddress(v6_addr->sin6_addr); |
| 523 | break; |
| 524 | } |
| 525 | default: { |
| 526 | prefixlist = prefixlist->Next; |
| 527 | continue; |
| 528 | } |
| 529 | } |
| 530 | if (TruncateIP(ip, prefixlist->PrefixLength) == current_prefix && |
| 531 | prefixlist->PrefixLength > best_length) { |
| 532 | best_prefix = current_prefix; |
| 533 | best_length = prefixlist->PrefixLength; |
| 534 | } |
| 535 | prefixlist = prefixlist->Next; |
| 536 | } |
| 537 | *prefix = best_prefix; |
| 538 | return best_length; |
| 539 | } |
| 540 | |
| 541 | bool BasicNetworkManager::CreateNetworks(bool include_ignored, |
| 542 | NetworkList* networks) const { |
| 543 | NetworkMap current_networks; |
| 544 | // MSDN recommends a 15KB buffer for the first try at GetAdaptersAddresses. |
| 545 | size_t buffer_size = 16384; |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 546 | std::unique_ptr<char[]> adapter_info(new char[buffer_size]); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 547 | PIP_ADAPTER_ADDRESSES adapter_addrs = |
| 548 | reinterpret_cast<PIP_ADAPTER_ADDRESSES>(adapter_info.get()); |
| 549 | int adapter_flags = (GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_SKIP_ANYCAST | |
| 550 | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_INCLUDE_PREFIX); |
| 551 | int ret = 0; |
| 552 | do { |
| 553 | adapter_info.reset(new char[buffer_size]); |
| 554 | adapter_addrs = reinterpret_cast<PIP_ADAPTER_ADDRESSES>(adapter_info.get()); |
| 555 | ret = GetAdaptersAddresses(AF_UNSPEC, adapter_flags, |
| 556 | 0, adapter_addrs, |
| 557 | reinterpret_cast<PULONG>(&buffer_size)); |
| 558 | } while (ret == ERROR_BUFFER_OVERFLOW); |
| 559 | if (ret != ERROR_SUCCESS) { |
| 560 | return false; |
| 561 | } |
| 562 | int count = 0; |
| 563 | while (adapter_addrs) { |
| 564 | if (adapter_addrs->OperStatus == IfOperStatusUp) { |
| 565 | PIP_ADAPTER_UNICAST_ADDRESS address = adapter_addrs->FirstUnicastAddress; |
| 566 | PIP_ADAPTER_PREFIX prefixlist = adapter_addrs->FirstPrefix; |
| 567 | std::string name; |
| 568 | std::string description; |
tfarina | a41ab93 | 2015-10-30 16:08:48 -0700 | [diff] [blame] | 569 | #if !defined(NDEBUG) |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 570 | name = ToUtf8(adapter_addrs->FriendlyName, |
| 571 | wcslen(adapter_addrs->FriendlyName)); |
| 572 | #endif |
| 573 | description = ToUtf8(adapter_addrs->Description, |
| 574 | wcslen(adapter_addrs->Description)); |
| 575 | for (; address; address = address->Next) { |
tfarina | a41ab93 | 2015-10-30 16:08:48 -0700 | [diff] [blame] | 576 | #if defined(NDEBUG) |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 577 | name = rtc::ToString(count); |
| 578 | #endif |
| 579 | |
| 580 | IPAddress ip; |
| 581 | int scope_id = 0; |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 582 | std::unique_ptr<Network> network; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 583 | switch (address->Address.lpSockaddr->sa_family) { |
| 584 | case AF_INET: { |
| 585 | sockaddr_in* v4_addr = |
| 586 | reinterpret_cast<sockaddr_in*>(address->Address.lpSockaddr); |
| 587 | ip = IPAddress(v4_addr->sin_addr); |
| 588 | break; |
| 589 | } |
| 590 | case AF_INET6: { |
| 591 | if (ipv6_enabled()) { |
| 592 | sockaddr_in6* v6_addr = |
| 593 | reinterpret_cast<sockaddr_in6*>(address->Address.lpSockaddr); |
| 594 | scope_id = v6_addr->sin6_scope_id; |
| 595 | ip = IPAddress(v6_addr->sin6_addr); |
guoweis@webrtc.org | b91d0f5 | 2015-03-17 14:43:20 +0000 | [diff] [blame] | 596 | |
| 597 | if (IsIgnoredIPv6(ip)) { |
| 598 | continue; |
| 599 | } |
| 600 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 601 | break; |
| 602 | } else { |
| 603 | continue; |
| 604 | } |
| 605 | } |
| 606 | default: { |
| 607 | continue; |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | IPAddress prefix; |
| 612 | int prefix_length = GetPrefix(prefixlist, ip, &prefix); |
| 613 | std::string key = MakeNetworkKey(name, prefix, prefix_length); |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 614 | auto existing_network = current_networks.find(key); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 615 | if (existing_network == current_networks.end()) { |
phoglund@webrtc.org | 006521d | 2015-02-12 09:23:59 +0000 | [diff] [blame] | 616 | AdapterType adapter_type = ADAPTER_TYPE_UNKNOWN; |
| 617 | if (adapter_addrs->IfType == IF_TYPE_SOFTWARE_LOOPBACK) { |
| 618 | // TODO(phoglund): Need to recognize other types as well. |
| 619 | adapter_type = ADAPTER_TYPE_LOOPBACK; |
| 620 | } |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 621 | std::unique_ptr<Network> network(new Network( |
| 622 | name, description, prefix, prefix_length, adapter_type)); |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 623 | network->set_default_local_address_provider(this); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 624 | network->set_scope_id(scope_id); |
| 625 | network->AddIP(ip); |
phoglund@webrtc.org | 006521d | 2015-02-12 09:23:59 +0000 | [diff] [blame] | 626 | bool ignored = IsIgnoredNetwork(*network); |
| 627 | network->set_ignored(ignored); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 628 | if (include_ignored || !network->ignored()) { |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 629 | current_networks[key] = network.get(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 630 | networks->push_back(network.release()); |
| 631 | } |
| 632 | } else { |
| 633 | (*existing_network).second->AddIP(ip); |
| 634 | } |
| 635 | } |
| 636 | // Count is per-adapter - all 'Networks' created from the same |
| 637 | // adapter need to have the same name. |
| 638 | ++count; |
| 639 | } |
| 640 | adapter_addrs = adapter_addrs->Next; |
| 641 | } |
| 642 | return true; |
| 643 | } |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 644 | #endif // WEBRTC_WIN |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 645 | |
| 646 | #if defined(WEBRTC_LINUX) |
| 647 | bool IsDefaultRoute(const std::string& network_name) { |
| 648 | FileStream fs; |
deadbeef | 37f5ecf | 2017-02-27 14:06:41 -0800 | [diff] [blame] | 649 | if (!fs.Open("/proc/net/route", "r", nullptr)) { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 650 | RTC_LOG(LS_WARNING) |
| 651 | << "Couldn't read /proc/net/route, skipping default " |
| 652 | << "route check (assuming everything is a default route)."; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 653 | return true; |
| 654 | } else { |
| 655 | std::string line; |
| 656 | while (fs.ReadLine(&line) == SR_SUCCESS) { |
| 657 | char iface_name[256]; |
| 658 | unsigned int iface_ip, iface_gw, iface_mask, iface_flags; |
| 659 | if (sscanf(line.c_str(), |
| 660 | "%255s %8X %8X %4X %*d %*u %*d %8X", |
| 661 | iface_name, &iface_ip, &iface_gw, |
| 662 | &iface_flags, &iface_mask) == 5 && |
| 663 | network_name == iface_name && |
| 664 | iface_mask == 0 && |
| 665 | (iface_flags & (RTF_UP | RTF_HOST)) == RTF_UP) { |
| 666 | return true; |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | return false; |
| 671 | } |
| 672 | #endif |
| 673 | |
| 674 | bool BasicNetworkManager::IsIgnoredNetwork(const Network& network) const { |
| 675 | // Ignore networks on the explicit ignore list. |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 676 | for (const std::string& ignored_name : network_ignore_list_) { |
| 677 | if (network.name() == ignored_name) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 678 | return true; |
| 679 | } |
| 680 | } |
phoglund@webrtc.org | 006521d | 2015-02-12 09:23:59 +0000 | [diff] [blame] | 681 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 682 | #if defined(WEBRTC_POSIX) |
pthatcher@webrtc.org | dfef028 | 2015-01-07 17:20:52 +0000 | [diff] [blame] | 683 | // Filter out VMware/VirtualBox interfaces, typically named vmnet1, |
| 684 | // vmnet8, or vboxnet0. |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 685 | if (strncmp(network.name().c_str(), "vmnet", 5) == 0 || |
pthatcher@webrtc.org | dfef028 | 2015-01-07 17:20:52 +0000 | [diff] [blame] | 686 | strncmp(network.name().c_str(), "vnic", 4) == 0 || |
| 687 | strncmp(network.name().c_str(), "vboxnet", 7) == 0) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 688 | return true; |
| 689 | } |
| 690 | #if defined(WEBRTC_LINUX) |
| 691 | // Make sure this is a default route, if we're ignoring non-defaults. |
| 692 | if (ignore_non_default_routes_ && !IsDefaultRoute(network.name())) { |
| 693 | return true; |
| 694 | } |
| 695 | #endif |
| 696 | #elif defined(WEBRTC_WIN) |
| 697 | // Ignore any HOST side vmware adapters with a description like: |
| 698 | // VMware Virtual Ethernet Adapter for VMnet1 |
| 699 | // but don't ignore any GUEST side adapters with a description like: |
| 700 | // VMware Accelerated AMD PCNet Adapter #2 |
deadbeef | 37f5ecf | 2017-02-27 14:06:41 -0800 | [diff] [blame] | 701 | if (strstr(network.description().c_str(), "VMnet") != nullptr) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 702 | return true; |
| 703 | } |
| 704 | #endif |
| 705 | |
| 706 | // Ignore any networks with a 0.x.y.z IP |
| 707 | if (network.prefix().family() == AF_INET) { |
| 708 | return (network.prefix().v4AddressAsHostOrderInteger() < 0x01000000); |
| 709 | } |
guoweis@webrtc.org | bbce5ef | 2015-03-05 04:38:29 +0000 | [diff] [blame] | 710 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 711 | return false; |
| 712 | } |
| 713 | |
| 714 | void BasicNetworkManager::StartUpdating() { |
| 715 | thread_ = Thread::Current(); |
| 716 | if (start_count_) { |
| 717 | // If network interfaces are already discovered and signal is sent, |
| 718 | // we should trigger network signal immediately for the new clients |
| 719 | // to start allocating ports. |
| 720 | if (sent_first_update_) |
Taylor Brandstetter | 5d97a9a | 2016-06-10 14:17:27 -0700 | [diff] [blame] | 721 | thread_->Post(RTC_FROM_HERE, this, kSignalNetworksMessage); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 722 | } else { |
Taylor Brandstetter | 5d97a9a | 2016-06-10 14:17:27 -0700 | [diff] [blame] | 723 | thread_->Post(RTC_FROM_HERE, this, kUpdateNetworksMessage); |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 724 | StartNetworkMonitor(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 725 | } |
| 726 | ++start_count_; |
| 727 | } |
| 728 | |
| 729 | void BasicNetworkManager::StopUpdating() { |
nisse | ede5da4 | 2017-01-12 05:15:36 -0800 | [diff] [blame] | 730 | RTC_DCHECK(Thread::Current() == thread_); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 731 | if (!start_count_) |
| 732 | return; |
| 733 | |
| 734 | --start_count_; |
| 735 | if (!start_count_) { |
| 736 | thread_->Clear(this); |
| 737 | sent_first_update_ = false; |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 738 | StopNetworkMonitor(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 739 | } |
| 740 | } |
| 741 | |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 742 | void BasicNetworkManager::StartNetworkMonitor() { |
| 743 | NetworkMonitorFactory* factory = NetworkMonitorFactory::GetFactory(); |
| 744 | if (factory == nullptr) { |
| 745 | return; |
| 746 | } |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 747 | if (!network_monitor_) { |
honghaiz | cec0a08 | 2016-01-15 14:49:09 -0800 | [diff] [blame] | 748 | network_monitor_.reset(factory->CreateNetworkMonitor()); |
| 749 | if (!network_monitor_) { |
| 750 | return; |
| 751 | } |
skvlad | 979c268 | 2016-06-10 15:24:13 -0700 | [diff] [blame] | 752 | network_monitor_->SignalNetworksChanged.connect( |
| 753 | this, &BasicNetworkManager::OnNetworksChanged); |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 754 | } |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 755 | network_monitor_->Start(); |
| 756 | } |
| 757 | |
| 758 | void BasicNetworkManager::StopNetworkMonitor() { |
| 759 | if (!network_monitor_) { |
| 760 | return; |
| 761 | } |
| 762 | network_monitor_->Stop(); |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 763 | } |
| 764 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 765 | void BasicNetworkManager::OnMessage(Message* msg) { |
| 766 | switch (msg->message_id) { |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 767 | case kUpdateNetworksMessage: { |
| 768 | UpdateNetworksContinually(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 769 | break; |
| 770 | } |
| 771 | case kSignalNetworksMessage: { |
| 772 | SignalNetworksChanged(); |
| 773 | break; |
| 774 | } |
| 775 | default: |
nisse | c80e741 | 2017-01-11 05:56:46 -0800 | [diff] [blame] | 776 | RTC_NOTREACHED(); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 777 | } |
| 778 | } |
| 779 | |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 780 | AdapterType BasicNetworkManager::GetAdapterTypeFromName( |
| 781 | const char* network_name) const { |
| 782 | // If there is a network_monitor, use it to get the adapter type. |
| 783 | // Otherwise, get the adapter type based on a few name matching rules. |
| 784 | if (network_monitor_) { |
| 785 | AdapterType type = network_monitor_->GetAdapterType(network_name); |
| 786 | if (type != ADAPTER_TYPE_UNKNOWN) { |
| 787 | return type; |
| 788 | } |
| 789 | } |
deadbeef | 4cd599f | 2017-07-27 15:05:29 -0700 | [diff] [blame] | 790 | if (strncmp(network_name, "ipsec", 5) == 0) { |
| 791 | return ADAPTER_TYPE_VPN; |
| 792 | } |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 793 | #if defined(WEBRTC_IOS) |
| 794 | // Cell networks are pdp_ipN on iOS. |
| 795 | if (strncmp(network_name, "pdp_ip", 6) == 0) { |
| 796 | return ADAPTER_TYPE_CELLULAR; |
| 797 | } |
Honghai Zhang | 63ab810 | 2016-05-26 20:30:15 -0700 | [diff] [blame] | 798 | if (strncmp(network_name, "en", 2) == 0) { |
| 799 | // This may not be most accurate because sometimes Ethernet interface |
| 800 | // name also starts with "en" but it is better than showing it as |
| 801 | // "unknown" type. |
| 802 | // TODO(honghaiz): Write a proper IOS network manager. |
| 803 | return ADAPTER_TYPE_WIFI; |
| 804 | } |
Honghai Zhang | 351d77b | 2016-05-20 15:08:29 -0700 | [diff] [blame] | 805 | #elif defined(WEBRTC_ANDROID) |
| 806 | if (strncmp(network_name, "rmnet", 5) == 0 || |
| 807 | strncmp(network_name, "v4-rmnet", 8) == 0) { |
| 808 | return ADAPTER_TYPE_CELLULAR; |
| 809 | } |
| 810 | if (strncmp(network_name, "wlan", 4) == 0) { |
| 811 | return ADAPTER_TYPE_WIFI; |
| 812 | } |
| 813 | #endif |
| 814 | |
| 815 | return ADAPTER_TYPE_UNKNOWN; |
| 816 | } |
| 817 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 818 | IPAddress BasicNetworkManager::QueryDefaultLocalAddress(int family) const { |
nisse | ede5da4 | 2017-01-12 05:15:36 -0800 | [diff] [blame] | 819 | RTC_DCHECK(thread_ == Thread::Current()); |
| 820 | RTC_DCHECK(thread_->socketserver() != nullptr); |
| 821 | RTC_DCHECK(family == AF_INET || family == AF_INET6); |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 822 | |
jbauch | 555604a | 2016-04-26 03:13:22 -0700 | [diff] [blame] | 823 | std::unique_ptr<AsyncSocket> socket( |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 824 | thread_->socketserver()->CreateAsyncSocket(family, SOCK_DGRAM)); |
| 825 | if (!socket) { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 826 | RTC_LOG_ERR(LERROR) << "Socket creation failed"; |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 827 | return IPAddress(); |
| 828 | } |
| 829 | |
guoweis | 56271ed | 2016-01-15 14:45:06 -0800 | [diff] [blame] | 830 | if (socket->Connect(SocketAddress( |
| 831 | family == AF_INET ? kPublicIPv4Host : kPublicIPv6Host, kPublicPort)) < |
| 832 | 0) { |
skvlad | 7502401 | 2016-09-29 12:59:35 -0700 | [diff] [blame] | 833 | if (socket->GetError() != ENETUNREACH |
| 834 | && socket->GetError() != EHOSTUNREACH) { |
| 835 | // Ignore the expected case of "host/net unreachable" - which happens if |
| 836 | // the network is V4- or V6-only. |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 837 | RTC_LOG(LS_INFO) << "Connect failed with " << socket->GetError(); |
skvlad | 7502401 | 2016-09-29 12:59:35 -0700 | [diff] [blame] | 838 | } |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 839 | return IPAddress(); |
| 840 | } |
| 841 | return socket->GetLocalAddress().ipaddr(); |
| 842 | } |
| 843 | |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 844 | void BasicNetworkManager::UpdateNetworksOnce() { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 845 | if (!start_count_) |
| 846 | return; |
| 847 | |
nisse | ede5da4 | 2017-01-12 05:15:36 -0800 | [diff] [blame] | 848 | RTC_DCHECK(Thread::Current() == thread_); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 849 | |
| 850 | NetworkList list; |
| 851 | if (!CreateNetworks(false, &list)) { |
| 852 | SignalError(); |
| 853 | } else { |
| 854 | bool changed; |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 855 | NetworkManager::Stats stats; |
| 856 | MergeNetworkList(list, &changed, &stats); |
| 857 | set_default_local_addresses(QueryDefaultLocalAddress(AF_INET), |
| 858 | QueryDefaultLocalAddress(AF_INET6)); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 859 | if (changed || !sent_first_update_) { |
| 860 | SignalNetworksChanged(); |
| 861 | sent_first_update_ = true; |
| 862 | } |
| 863 | } |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 864 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 865 | |
honghaiz | 023f3ef | 2015-10-19 09:39:32 -0700 | [diff] [blame] | 866 | void BasicNetworkManager::UpdateNetworksContinually() { |
| 867 | UpdateNetworksOnce(); |
Taylor Brandstetter | 5d97a9a | 2016-06-10 14:17:27 -0700 | [diff] [blame] | 868 | thread_->PostDelayed(RTC_FROM_HERE, kNetworksUpdateIntervalMs, this, |
| 869 | kUpdateNetworksMessage); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 870 | } |
| 871 | |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 872 | void BasicNetworkManager::DumpNetworks() { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 873 | NetworkList list; |
honghaiz | db8cf50 | 2015-12-21 13:08:46 -0800 | [diff] [blame] | 874 | GetNetworks(&list); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 875 | RTC_LOG(LS_INFO) << "NetworkManager detected " << list.size() << " networks:"; |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 876 | for (const Network* network : list) { |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 877 | RTC_LOG(LS_INFO) << network->ToString() << ": " << network->description() |
| 878 | << ", active ? " << network->active() |
| 879 | << ((network->ignored()) ? ", Ignored" : ""); |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 880 | } |
| 881 | } |
| 882 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 883 | Network::Network(const std::string& name, |
| 884 | const std::string& desc, |
| 885 | const IPAddress& prefix, |
| 886 | int prefix_length) |
| 887 | : name_(name), |
| 888 | description_(desc), |
| 889 | prefix_(prefix), |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 890 | prefix_length_(prefix_length), |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 891 | key_(MakeNetworkKey(name, prefix, prefix_length)), |
| 892 | scope_id_(0), |
| 893 | ignored_(false), |
| 894 | type_(ADAPTER_TYPE_UNKNOWN), |
| 895 | preference_(0) {} |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 896 | |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 897 | Network::Network(const std::string& name, |
| 898 | const std::string& desc, |
| 899 | const IPAddress& prefix, |
| 900 | int prefix_length, |
| 901 | AdapterType type) |
| 902 | : name_(name), |
| 903 | description_(desc), |
| 904 | prefix_(prefix), |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 905 | prefix_length_(prefix_length), |
Guo-wei Shieh | 9af97f8 | 2015-11-10 14:47:39 -0800 | [diff] [blame] | 906 | key_(MakeNetworkKey(name, prefix, prefix_length)), |
| 907 | scope_id_(0), |
| 908 | ignored_(false), |
| 909 | type_(type), |
| 910 | preference_(0) {} |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 911 | |
Steve Anton | 9de3aac | 2017-10-24 10:08:26 -0700 | [diff] [blame] | 912 | Network::Network(const Network&) = default; |
| 913 | |
kwiberg@webrtc.org | 67186fe | 2015-03-09 22:21:53 +0000 | [diff] [blame] | 914 | Network::~Network() = default; |
| 915 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 916 | // Sets the addresses of this network. Returns true if the address set changed. |
| 917 | // Change detection is short circuited if the changed argument is true. |
guoweis@webrtc.org | fa60398 | 2014-09-09 23:42:40 +0000 | [diff] [blame] | 918 | bool Network::SetIPs(const std::vector<InterfaceAddress>& ips, bool changed) { |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 919 | // Detect changes with a nested loop; n-squared but we expect on the order |
| 920 | // of 2-3 addresses per network. |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 921 | changed = changed || ips.size() != ips_.size(); |
| 922 | if (!changed) { |
| 923 | for (const InterfaceAddress& ip : ips) { |
| 924 | if (std::find(ips_.begin(), ips_.end(), ip) == ips_.end()) { |
| 925 | changed = true; |
| 926 | break; |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 927 | } |
| 928 | } |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 929 | } |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 930 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 931 | ips_ = ips; |
| 932 | return changed; |
| 933 | } |
| 934 | |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 935 | // Select the best IP address to use from this Network. |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 936 | IPAddress Network::GetBestIP() const { |
guoweis@webrtc.org | fa60398 | 2014-09-09 23:42:40 +0000 | [diff] [blame] | 937 | if (ips_.size() == 0) { |
| 938 | return IPAddress(); |
| 939 | } |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 940 | |
| 941 | if (prefix_.family() == AF_INET) { |
| 942 | return static_cast<IPAddress>(ips_.at(0)); |
| 943 | } |
| 944 | |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 945 | InterfaceAddress selected_ip, ula_ip; |
| 946 | |
pthatcher@webrtc.org | 5950b64 | 2014-12-01 23:18:27 +0000 | [diff] [blame] | 947 | for (const InterfaceAddress& ip : ips_) { |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 948 | // Ignore any address which has been deprecated already. |
| 949 | if (ip.ipv6_flags() & IPV6_ADDRESS_FLAG_DEPRECATED) |
| 950 | continue; |
| 951 | |
| 952 | // ULA address should only be returned when we have no other |
| 953 | // global IP. |
| 954 | if (IPIsULA(static_cast<const IPAddress&>(ip))) { |
| 955 | ula_ip = ip; |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 956 | continue; |
| 957 | } |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 958 | selected_ip = ip; |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 959 | |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 960 | // Search could stop once a temporary non-deprecated one is found. |
| 961 | if (ip.ipv6_flags() & IPV6_ADDRESS_FLAG_TEMPORARY) |
| 962 | break; |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 963 | } |
| 964 | |
aluebs@webrtc.org | 07dcf60 | 2015-02-27 18:42:22 +0000 | [diff] [blame] | 965 | // No proper global IPv6 address found, use ULA instead. |
| 966 | if (IPIsUnspec(selected_ip) && !IPIsUnspec(ula_ip)) { |
| 967 | selected_ip = ula_ip; |
| 968 | } |
| 969 | |
| 970 | return static_cast<IPAddress>(selected_ip); |
guoweis@webrtc.org | 369a637 | 2014-09-17 22:37:29 +0000 | [diff] [blame] | 971 | } |
| 972 | |
| 973 | std::string Network::ToString() const { |
| 974 | std::stringstream ss; |
| 975 | // Print out the first space-terminated token of the network desc, plus |
| 976 | // the IP address. |
| 977 | ss << "Net[" << description_.substr(0, description_.find(' ')) |
| 978 | << ":" << prefix_.ToSensitiveString() << "/" << prefix_length_ |
| 979 | << ":" << AdapterTypeToString(type_) << "]"; |
| 980 | return ss.str(); |
guoweis@webrtc.org | fa60398 | 2014-09-09 23:42:40 +0000 | [diff] [blame] | 981 | } |
| 982 | |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 983 | } // namespace rtc |