Split network_interfaces.h off of net_utils.h.

net/base/net_util_win.cc

Index: net/base/net_util_win.cc
diff --git a/net/base/net_util_win.cc b/net/base/net_util_win.cc
deleted file mode 100644
index 0889917830123e2411be2e086d9821f8e68f53f1..0000000000000000000000000000000000000000
--- a/net/base/net_util_win.cc
+++ /dev/null
@@ -1,335 +0,0 @@
-// 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/base/net_util.h"
-
-#include <iphlpapi.h>
-#include <wlanapi.h>
-
-#include <algorithm>
-
-#include "base/files/file_path.h"
-#include "base/lazy_instance.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/sys_string_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/thread_restrictions.h"
-#include "base/win/scoped_handle.h"
-#include "base/win/windows_version.h"
-#include "net/base/escape.h"
-#include "net/base/ip_endpoint.h"
-#include "net/base/net_errors.h"
-#include "net/base/net_util_win.h"
-#include "url/gurl.h"
-
-namespace net {
-
-namespace {
-
-// Converts Windows defined types to NetworkInterfaceType.
-NetworkChangeNotifier::ConnectionType GetNetworkInterfaceType(DWORD ifType) {
-  // Bail out for pre-Vista versions of Windows which are documented to give
-  // inaccurate results like returning Ethernet for WiFi.
-  // http://msdn.microsoft.com/en-us/library/windows/desktop/aa366058.aspx
-  if (base::win::GetVersion() < base::win::VERSION_VISTA)
-    return NetworkChangeNotifier::CONNECTION_UNKNOWN;
-
-  NetworkChangeNotifier::ConnectionType type =
-      NetworkChangeNotifier::CONNECTION_UNKNOWN;
-  if (ifType == IF_TYPE_ETHERNET_CSMACD) {
-    type = NetworkChangeNotifier::CONNECTION_ETHERNET;
-  } else if (ifType == IF_TYPE_IEEE80211) {
-    type = NetworkChangeNotifier::CONNECTION_WIFI;
-  }
-  // TODO(mallinath) - Cellular?
-  return type;
-}
-
-}  // namespace
-
-namespace internal {
-
-base::LazyInstance<WlanApi>::Leaky lazy_wlanapi =
-  LAZY_INSTANCE_INITIALIZER;
-
-WlanApi& WlanApi::GetInstance() {
-  return lazy_wlanapi.Get();
-}
-
-WlanApi::WlanApi() : initialized(false) {
-  // Use an absolute path to load the DLL to avoid DLL preloading attacks.
-  static const wchar_t* const kDLL = L"%WINDIR%\\system32\\wlanapi.dll";
-  wchar_t path[MAX_PATH] = {0};
-  ExpandEnvironmentStrings(kDLL, path, arraysize(path));
-  module = ::LoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
-  if (!module)
-    return;
-
-  open_handle_func = reinterpret_cast<WlanOpenHandleFunc>(
-      ::GetProcAddress(module, "WlanOpenHandle"));
-  enum_interfaces_func = reinterpret_cast<WlanEnumInterfacesFunc>(
-      ::GetProcAddress(module, "WlanEnumInterfaces"));
-  query_interface_func = reinterpret_cast<WlanQueryInterfaceFunc>(
-      ::GetProcAddress(module, "WlanQueryInterface"));
-  set_interface_func = reinterpret_cast<WlanSetInterfaceFunc>(
-      ::GetProcAddress(module, "WlanSetInterface"));
-  free_memory_func = reinterpret_cast<WlanFreeMemoryFunc>(
-      ::GetProcAddress(module, "WlanFreeMemory"));
-  close_handle_func = reinterpret_cast<WlanCloseHandleFunc>(
-      ::GetProcAddress(module, "WlanCloseHandle"));
-  initialized = open_handle_func && enum_interfaces_func &&
-      query_interface_func && set_interface_func &&
-      free_memory_func && close_handle_func;
-}
-
-bool GetNetworkListImpl(NetworkInterfaceList* networks,
-                        int policy,
-                        bool is_xp,
-                        const IP_ADAPTER_ADDRESSES* adapters) {
-  for (const IP_ADAPTER_ADDRESSES* adapter = adapters; adapter != NULL;
-       adapter = adapter->Next) {
-    // Ignore the loopback device.
-    if (adapter->IfType == IF_TYPE_SOFTWARE_LOOPBACK) {
-      continue;
-    }
-
-    if (adapter->OperStatus != IfOperStatusUp) {
-      continue;
-    }
-
-    // Ignore any HOST side vmware adapters with a description like:
-    // VMware Virtual Ethernet Adapter for VMnet1
-    // but don't ignore any GUEST side adapters with a description like:
-    // VMware Accelerated AMD PCNet Adapter #2
-    if ((policy & EXCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES) &&
-        strstr(adapter->AdapterName, "VMnet") != NULL) {
-      continue;
-    }
-
-    for (IP_ADAPTER_UNICAST_ADDRESS* address = adapter->FirstUnicastAddress;
-         address; address = address->Next) {
-      int family = address->Address.lpSockaddr->sa_family;
-      if (family == AF_INET || family == AF_INET6) {
-        IPEndPoint endpoint;
-        if (endpoint.FromSockAddr(address->Address.lpSockaddr,
-                                  address->Address.iSockaddrLength)) {
-          // XP has no OnLinkPrefixLength field.
-          size_t prefix_length = is_xp ? 0 : address->OnLinkPrefixLength;
-          if (is_xp) {
-            // Prior to Windows Vista the FirstPrefix pointed to the list with
-            // single prefix for each IP address assigned to the adapter.
-            // Order of FirstPrefix does not match order of FirstUnicastAddress,
-            // so we need to find corresponding prefix.
-            for (IP_ADAPTER_PREFIX* prefix = adapter->FirstPrefix; prefix;
-                 prefix = prefix->Next) {
-              int prefix_family = prefix->Address.lpSockaddr->sa_family;
-              IPEndPoint network_endpoint;
-              if (prefix_family == family &&
-                  network_endpoint.FromSockAddr(prefix->Address.lpSockaddr,
-                      prefix->Address.iSockaddrLength) &&
-                  IPNumberMatchesPrefix(endpoint.address(),
-                                        network_endpoint.address(),
-                                        prefix->PrefixLength)) {
-                prefix_length =
-                    std::max<size_t>(prefix_length, prefix->PrefixLength);
-              }
-            }
-          }
-
-          // If the duplicate address detection (DAD) state is not changed to
-          // Preferred, skip this address.
-          if (address->DadState != IpDadStatePreferred) {
-            continue;
-          }
-
-          uint32 index =
-              (family == AF_INET) ? adapter->IfIndex : adapter->Ipv6IfIndex;
-
-          // From http://technet.microsoft.com/en-us/ff568768(v=vs.60).aspx, the
-          // way to identify a temporary IPv6 Address is to check if
-          // PrefixOrigin is equal to IpPrefixOriginRouterAdvertisement and
-          // SuffixOrigin equal to IpSuffixOriginRandom.
-          int ip_address_attributes = IP_ADDRESS_ATTRIBUTE_NONE;
-          if (family == AF_INET6) {
-            if (address->PrefixOrigin == IpPrefixOriginRouterAdvertisement &&
-                address->SuffixOrigin == IpSuffixOriginRandom) {
-              ip_address_attributes |= IP_ADDRESS_ATTRIBUTE_TEMPORARY;
-            }
-            if (address->PreferredLifetime == 0) {
-              ip_address_attributes |= IP_ADDRESS_ATTRIBUTE_DEPRECATED;
-            }
-          }
-          networks->push_back(NetworkInterface(
-              adapter->AdapterName,
-              base::SysWideToNativeMB(adapter->FriendlyName), index,
-              GetNetworkInterfaceType(adapter->IfType), endpoint.address(),
-              prefix_length, ip_address_attributes));
-        }
-      }
-    }
-  }
-  return true;
-}
-
-}  // namespace internal
-
-bool GetNetworkList(NetworkInterfaceList* networks, int policy) {
-  bool is_xp = base::win::GetVersion() < base::win::VERSION_VISTA;
-  ULONG len = 0;
-  ULONG flags = is_xp ? GAA_FLAG_INCLUDE_PREFIX : 0;
-  // GetAdaptersAddresses() may require IO operations.
-  base::ThreadRestrictions::AssertIOAllowed();
-  ULONG result = GetAdaptersAddresses(AF_UNSPEC, flags, NULL, NULL, &len);
-  if (result != ERROR_BUFFER_OVERFLOW) {
-    // There are 0 networks.
-    return true;
-  }
-  scoped_ptr<char[]> buf(new char[len]);
-  IP_ADAPTER_ADDRESSES* adapters =
-      reinterpret_cast<IP_ADAPTER_ADDRESSES*>(buf.get());
-  result = GetAdaptersAddresses(AF_UNSPEC, flags, NULL, adapters, &len);
-  if (result != NO_ERROR) {
-    LOG(ERROR) << "GetAdaptersAddresses failed: " << result;
-    return false;
-  }
-
-  return internal::GetNetworkListImpl(networks, policy, is_xp, adapters);
-}
-
-WifiPHYLayerProtocol GetWifiPHYLayerProtocol() {
-  const internal::WlanApi& wlanapi = internal::WlanApi::GetInstance();
-  if (!wlanapi.initialized)
-    return WIFI_PHY_LAYER_PROTOCOL_NONE;
-
-  internal::WlanHandle client;
-  DWORD cur_version = 0;
-  const DWORD kMaxClientVersion = 2;
-  {
-    // TODO(rtenneti): Remove ScopedTracker below once crbug.com/422516 is
-    // fixed.
-    tracked_objects::ScopedTracker tracking_profile(
-        FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 OpenHandle()"));
-    DWORD result = wlanapi.OpenHandle(kMaxClientVersion, &cur_version, &client);
-    if (result != ERROR_SUCCESS)
-      return WIFI_PHY_LAYER_PROTOCOL_NONE;
-  }
-
-  WLAN_INTERFACE_INFO_LIST* interface_list_ptr = NULL;
-  DWORD result =
-      wlanapi.enum_interfaces_func(client.Get(), NULL, &interface_list_ptr);
-  if (result != ERROR_SUCCESS)
-    return WIFI_PHY_LAYER_PROTOCOL_NONE;
-  scoped_ptr<WLAN_INTERFACE_INFO_LIST, internal::WlanApiDeleter> interface_list(
-      interface_list_ptr);
-
-  // Assume at most one connected wifi interface.
-  WLAN_INTERFACE_INFO* info = NULL;
-  for (unsigned i = 0; i < interface_list->dwNumberOfItems; ++i) {
-    if (interface_list->InterfaceInfo[i].isState ==
-        wlan_interface_state_connected) {
-      info = &interface_list->InterfaceInfo[i];
-      break;
-    }
-  }
-
-  if (info == NULL)
-    return WIFI_PHY_LAYER_PROTOCOL_NONE;
-
-  WLAN_CONNECTION_ATTRIBUTES* conn_info_ptr;
-  DWORD conn_info_size = 0;
-  WLAN_OPCODE_VALUE_TYPE op_code;
-  result = wlanapi.query_interface_func(
-      client.Get(), &info->InterfaceGuid, wlan_intf_opcode_current_connection,
-      NULL, &conn_info_size, reinterpret_cast<VOID**>(&conn_info_ptr),
-      &op_code);
-  if (result != ERROR_SUCCESS)
-    return WIFI_PHY_LAYER_PROTOCOL_UNKNOWN;
-  scoped_ptr<WLAN_CONNECTION_ATTRIBUTES, internal::WlanApiDeleter> conn_info(
-      conn_info_ptr);
-
-  switch (conn_info->wlanAssociationAttributes.dot11PhyType) {
-    case dot11_phy_type_fhss:
-      return WIFI_PHY_LAYER_PROTOCOL_ANCIENT;
-    case dot11_phy_type_dsss:
-      return WIFI_PHY_LAYER_PROTOCOL_B;
-    case dot11_phy_type_irbaseband:
-      return WIFI_PHY_LAYER_PROTOCOL_ANCIENT;
-    case dot11_phy_type_ofdm:
-      return WIFI_PHY_LAYER_PROTOCOL_A;
-    case dot11_phy_type_hrdsss:
-      return WIFI_PHY_LAYER_PROTOCOL_B;
-    case dot11_phy_type_erp:
-      return WIFI_PHY_LAYER_PROTOCOL_G;
-    case dot11_phy_type_ht:
-      return WIFI_PHY_LAYER_PROTOCOL_N;
-    default:
-      return WIFI_PHY_LAYER_PROTOCOL_UNKNOWN;
-  }
-}
-
-// Note: There is no need to explicitly set the options back
-// as the OS will automatically set them back when the WlanHandle
-// is closed.
-class WifiOptionSetter : public ScopedWifiOptions {
- public:
-  WifiOptionSetter(int options) {
-    const internal::WlanApi& wlanapi = internal::WlanApi::GetInstance();
-    if (!wlanapi.initialized)
-      return;
-
-    DWORD cur_version = 0;
-    const DWORD kMaxClientVersion = 2;
-    DWORD result = wlanapi.OpenHandle(
-        kMaxClientVersion, &cur_version, &client_);
-    if (result != ERROR_SUCCESS)
-      return;
-
-    WLAN_INTERFACE_INFO_LIST* interface_list_ptr = NULL;
-    result = wlanapi.enum_interfaces_func(client_.Get(), NULL,
-                                          &interface_list_ptr);
-    if (result != ERROR_SUCCESS)
-      return;
-    scoped_ptr<WLAN_INTERFACE_INFO_LIST, internal::WlanApiDeleter>
-        interface_list(interface_list_ptr);
-
-    for (unsigned i = 0; i < interface_list->dwNumberOfItems; ++i) {
-      WLAN_INTERFACE_INFO* info = &interface_list->InterfaceInfo[i];
-      if (options & WIFI_OPTIONS_DISABLE_SCAN) {
-        BOOL data = false;
-        wlanapi.set_interface_func(client_.Get(),
-                                   &info->InterfaceGuid,
-                                   wlan_intf_opcode_background_scan_enabled,
-                                   sizeof(data),
-                                   &data,
-                                   NULL);
-      }
-      if (options & WIFI_OPTIONS_MEDIA_STREAMING_MODE) {
-        BOOL data = true;
-        wlanapi.set_interface_func(client_.Get(),
-                                   &info->InterfaceGuid,
-                                   wlan_intf_opcode_media_streaming_mode,
-                                   sizeof(data),
-                                   &data,
-                                   NULL);
-      }
-    }
-  }
-
- private:
-  internal::WlanHandle client_;
-};
-
-scoped_ptr<ScopedWifiOptions> SetWifiOptions(int options) {
-  return scoped_ptr<ScopedWifiOptions>(new WifiOptionSetter(options));
-}
-
-std::string GetWifiSSID() {
-  NOTIMPLEMENTED();
-  return "";
-}
-
-}  // namespace net