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// Copyright 2014 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 "components/metrics/net/wifi_access_point_info_provider_chromeos.h"
#include <stdint.h>
#include "base/bind.h"
#include "base/location.h"
#include "base/strings/string_number_conversions.h"
#include "chromeos/network/network_configuration_handler.h"
#include "chromeos/network/network_handler.h"
#include "chromeos/network/network_state.h"
#include "chromeos/network/network_state_handler.h"
#include "chromeos/network/shill_property_util.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
using chromeos::NetworkHandler;
namespace metrics {
WifiAccessPointInfoProviderChromeos::WifiAccessPointInfoProviderChromeos() {
NetworkHandler::Get()->network_state_handler()->AddObserver(this, FROM_HERE);
// Update initial connection state.
DefaultNetworkChanged(
NetworkHandler::Get()->network_state_handler()->DefaultNetwork());
}
WifiAccessPointInfoProviderChromeos::~WifiAccessPointInfoProviderChromeos() {
NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
FROM_HERE);
}
bool WifiAccessPointInfoProviderChromeos::GetInfo(WifiAccessPointInfo* info) {
// Wifi access point information is not provided if the BSSID is empty.
// This assumes the BSSID is never empty when access point information exists.
if (wifi_access_point_info_.bssid.empty())
return false;
*info = wifi_access_point_info_;
return true;
}
void WifiAccessPointInfoProviderChromeos::DefaultNetworkChanged(
const chromeos::NetworkState* default_network) {
// Reset access point info to prevent reporting of out-dated data.
wifi_access_point_info_ = WifiAccessPointInfo();
// Skip non-wifi connections
if (!default_network || default_network->type() != shill::kTypeWifi)
return;
// Retrieve access point info for wifi connection.
NetworkHandler::Get()->network_configuration_handler()->GetShillProperties(
default_network->path(),
base::Bind(&WifiAccessPointInfoProviderChromeos::ParseInfo, AsWeakPtr()),
chromeos::network_handler::ErrorCallback());
}
void WifiAccessPointInfoProviderChromeos::ParseInfo(
const std::string &service_path,
const base::DictionaryValue& properties) {
// Skip services that contain "_nomap" in the SSID.
std::string ssid = chromeos::shill_property_util::GetSSIDFromProperties(
properties, false /* verbose_logging */, nullptr);
if (ssid.find("_nomap", 0) != std::string::npos)
return;
std::string bssid;
if (!properties.GetStringWithoutPathExpansion(shill::kWifiBSsid, &bssid) ||
bssid.empty())
return;
// Filter out BSSID with local bit set in the first byte.
uint32_t first_octet;
if (!base::HexStringToUInt(bssid.substr(0, 2), &first_octet))
NOTREACHED();
if (first_octet & 0x2)
return;
wifi_access_point_info_.bssid = bssid;
// Parse security info.
std::string security;
properties.GetStringWithoutPathExpansion(
shill::kSecurityProperty, &security);
wifi_access_point_info_.security = WIFI_SECURITY_UNKNOWN;
if (security == shill::kSecurityWpa)
wifi_access_point_info_.security = WIFI_SECURITY_WPA;
else if (security == shill::kSecurityWep)
wifi_access_point_info_.security = WIFI_SECURITY_WEP;
else if (security == shill::kSecurityRsn)
wifi_access_point_info_.security = WIFI_SECURITY_RSN;
else if (security == shill::kSecurity8021x)
wifi_access_point_info_.security = WIFI_SECURITY_802_1X;
else if (security == shill::kSecurityPsk)
wifi_access_point_info_.security = WIFI_SECURITY_PSK;
else if (security == shill::kSecurityNone)
wifi_access_point_info_.security = WIFI_SECURITY_NONE;
properties.GetStringWithoutPathExpansion(
shill::kWifiBSsid, &wifi_access_point_info_.bssid);
const base::DictionaryValue* vendor_dict = NULL;
if (!properties.GetDictionaryWithoutPathExpansion(
shill::kWifiVendorInformationProperty,
&vendor_dict))
return;
vendor_dict->GetStringWithoutPathExpansion(
shill::kVendorWPSModelNumberProperty,
&wifi_access_point_info_.model_number);
vendor_dict->GetStringWithoutPathExpansion(
shill::kVendorWPSModelNameProperty,
&wifi_access_point_info_.model_name);
vendor_dict->GetStringWithoutPathExpansion(
shill::kVendorWPSDeviceNameProperty,
&wifi_access_point_info_.device_name);
vendor_dict->GetStringWithoutPathExpansion(shill::kVendorOUIListProperty,
&wifi_access_point_info_.oui_list);
}
} // namespace metrics
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