Index: content/browser/geolocation/wifi_data_provider_common_win.cc |
diff --git a/content/browser/geolocation/wifi_data_provider_common_win.cc b/content/browser/geolocation/wifi_data_provider_common_win.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..77ff286062a2268281fd93aa86176047447bfa83 |
--- /dev/null |
+++ b/content/browser/geolocation/wifi_data_provider_common_win.cc |
@@ -0,0 +1,57 @@ |
+// Copyright (c) 2010 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 "content/browser/geolocation/wifi_data_provider_common_win.h" |
+ |
+#include <assert.h> |
+#include <stdint.h> |
+ |
+#include "base/strings/utf_string_conversions.h" |
+#include "content/browser/geolocation/wifi_data_provider_common.h" |
+ |
+namespace content { |
+ |
+bool ConvertToAccessPointData(const NDIS_WLAN_BSSID& data, |
+ AccessPointData *access_point_data) { |
+ // Currently we get only MAC address, signal strength and SSID. |
+ // TODO(steveblock): Work out how to get age, channel and signal-to-noise. |
+ DCHECK(access_point_data); |
+ access_point_data->mac_address = MacAddressAsString16(data.MacAddress); |
+ access_point_data->radio_signal_strength = data.Rssi; |
+ // Note that _NDIS_802_11_SSID::Ssid::Ssid is not null-terminated. |
+ base::UTF8ToUTF16(reinterpret_cast<const char*>(data.Ssid.Ssid), |
+ data.Ssid.SsidLength, |
+ &access_point_data->ssid); |
+ return true; |
+} |
+ |
+int GetDataFromBssIdList(const NDIS_802_11_BSSID_LIST& bss_id_list, |
+ int list_size, |
+ WifiData::AccessPointDataSet* data) { |
+ // Walk through the BSS IDs. |
+ int found = 0; |
+ const uint8_t* iterator = |
+ reinterpret_cast<const uint8_t*>(&bss_id_list.Bssid[0]); |
+ const uint8_t* end_of_buffer = |
+ reinterpret_cast<const uint8_t*>(&bss_id_list) + list_size; |
+ for (int i = 0; i < static_cast<int>(bss_id_list.NumberOfItems); ++i) { |
+ const NDIS_WLAN_BSSID *bss_id = |
+ reinterpret_cast<const NDIS_WLAN_BSSID*>(iterator); |
+ // Check that the length of this BSS ID is reasonable. |
+ if (bss_id->Length < sizeof(NDIS_WLAN_BSSID) || |
+ iterator + bss_id->Length > end_of_buffer) { |
+ break; |
+ } |
+ AccessPointData access_point_data; |
+ if (ConvertToAccessPointData(*bss_id, &access_point_data)) { |
+ data->insert(access_point_data); |
+ ++found; |
+ } |
+ // Move to the next BSS ID. |
+ iterator += bss_id->Length; |
+ } |
+ return found; |
+} |
+ |
+} // namespace content |