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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/quic/network_connection.h"
#include "net/base/network_interfaces.h"
namespace net {
NetworkConnection::NetworkConnection()
: connection_type_(NetworkChangeNotifier::CONNECTION_UNKNOWN),
connection_description_(nullptr) {}
const char* NetworkConnection::GetDescription() {
NetworkChangeNotifier::ConnectionType type =
NetworkChangeNotifier::GetConnectionType();
if (connection_description_ != nullptr && type == connection_type_)
return connection_description_;
DVLOG(1) << "Updating NetworkConnection's Cached Data";
connection_description_ = NetworkChangeNotifier::ConnectionTypeToString(type);
connection_type_ = type;
if (connection_type_ == NetworkChangeNotifier::CONNECTION_UNKNOWN ||
connection_type_ == NetworkChangeNotifier::CONNECTION_WIFI) {
// This function only seems usefully defined on Windows currently.
WifiPHYLayerProtocol wifi_type = GetWifiPHYLayerProtocol();
switch (wifi_type) {
case WIFI_PHY_LAYER_PROTOCOL_NONE:
// No wifi support or no associated AP.
break;
case WIFI_PHY_LAYER_PROTOCOL_ANCIENT:
// An obsolete modes introduced by the original 802.11, e.g. IR, FHSS.
connection_description_ = "CONNECTION_WIFI_ANCIENT";
break;
case WIFI_PHY_LAYER_PROTOCOL_A:
// 802.11a, OFDM-based rates.
connection_description_ = "CONNECTION_WIFI_802.11a";
break;
case WIFI_PHY_LAYER_PROTOCOL_B:
// 802.11b, DSSS or HR DSSS.
connection_description_ = "CONNECTION_WIFI_802.11b";
break;
case WIFI_PHY_LAYER_PROTOCOL_G:
// 802.11g, same rates as 802.11a but compatible with 802.11b.
connection_description_ = "CONNECTION_WIFI_802.11g";
break;
case WIFI_PHY_LAYER_PROTOCOL_N:
// 802.11n, HT rates.
connection_description_ = "CONNECTION_WIFI_802.11n";
break;
case WIFI_PHY_LAYER_PROTOCOL_UNKNOWN:
// Unclassified mode or failure to identify.
break;
}
}
return connection_description_;
}
void NetworkConnection::Clear() {
connection_type_ = NetworkChangeNotifier::CONNECTION_UNKNOWN;
connection_description_ = nullptr;
}
void NetworkConnection::OnIPAddressChanged() {
Clear();
}
void NetworkConnection::OnConnectionTypeChanged(
NetworkChangeNotifier::ConnectionType type) {
Clear();
}
} // namespace net
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