| OLD | NEW |
| (Empty) |
| 1 // Copyright (c) 2010 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 "chrome/browser/geolocation/wifi_data_provider_common_win.h" | |
| 6 | |
| 7 #include <assert.h> | |
| 8 | |
| 9 #include "base/utf_string_conversions.h" | |
| 10 #include "chrome/browser/geolocation/device_data_provider.h" | |
| 11 #include "chrome/browser/geolocation/wifi_data_provider_common.h" | |
| 12 | |
| 13 bool ConvertToAccessPointData(const NDIS_WLAN_BSSID& data, | |
| 14 AccessPointData *access_point_data) { | |
| 15 // Currently we get only MAC address, signal strength and SSID. | |
| 16 // TODO(steveblock): Work out how to get age, channel and signal-to-noise. | |
| 17 DCHECK(access_point_data); | |
| 18 access_point_data->mac_address = MacAddressAsString16(data.MacAddress); | |
| 19 access_point_data->radio_signal_strength = data.Rssi; | |
| 20 // Note that _NDIS_802_11_SSID::Ssid::Ssid is not null-terminated. | |
| 21 UTF8ToUTF16(reinterpret_cast<const char*>(data.Ssid.Ssid), | |
| 22 data.Ssid.SsidLength, | |
| 23 &access_point_data->ssid); | |
| 24 return true; | |
| 25 } | |
| 26 | |
| 27 int GetDataFromBssIdList(const NDIS_802_11_BSSID_LIST& bss_id_list, | |
| 28 int list_size, | |
| 29 WifiData::AccessPointDataSet* data) { | |
| 30 // Walk through the BSS IDs. | |
| 31 int found = 0; | |
| 32 const uint8 *iterator = reinterpret_cast<const uint8*>(&bss_id_list.Bssid[0]); | |
| 33 const uint8 *end_of_buffer = | |
| 34 reinterpret_cast<const uint8*>(&bss_id_list) + list_size; | |
| 35 for (int i = 0; i < static_cast<int>(bss_id_list.NumberOfItems); ++i) { | |
| 36 const NDIS_WLAN_BSSID *bss_id = | |
| 37 reinterpret_cast<const NDIS_WLAN_BSSID*>(iterator); | |
| 38 // Check that the length of this BSS ID is reasonable. | |
| 39 if (bss_id->Length < sizeof(NDIS_WLAN_BSSID) || | |
| 40 iterator + bss_id->Length > end_of_buffer) { | |
| 41 break; | |
| 42 } | |
| 43 AccessPointData access_point_data; | |
| 44 if (ConvertToAccessPointData(*bss_id, &access_point_data)) { | |
| 45 data->insert(access_point_data); | |
| 46 ++found; | |
| 47 } | |
| 48 // Move to the next BSS ID. | |
| 49 iterator += bss_id->Length; | |
| 50 } | |
| 51 return found; | |
| 52 } | |
| OLD | NEW |