net/base/network_interfaces_posix.cc

   1 // Copyright (c) 2011 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 "net/base/net_util.h"
   6
   7 #include <set>
   8 #include <sys/types.h>
   9
  10 #include "base/memory/scoped_ptr.h"
  11
  12 #if !defined(OS_NACL)
  13 #include "net/base/network_interfaces_posix.h"
  14 #include <net/if.h>
  15 #include <netinet/in.h>
  16 #endif  // !defined(OS_NACL)
  17
  18 namespace net {
  19
  20 #if !defined(OS_NACL)
  21 namespace internal {
  22
  23 // The application layer can pass |policy| defined in net_util.h to
  24 // request filtering out certain type of interfaces.
  25 bool ShouldIgnoreInterface(const std::string& name, int policy) {
  26   // Filter out VMware interfaces, typically named vmnet1 and vmnet8,
  27   // which might not be useful for use cases like WebRTC.
  28   if ((policy & EXCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES) &&
  29       ((name.find("vmnet") != std::string::npos) ||
  30        (name.find("vnic") != std::string::npos))) {
  31     return true;
  32   }
  33
  34   return false;
  35 }
  36
  37 // Check if the address is unspecified (i.e. made of zeroes) or loopback.
  38 bool IsLoopbackOrUnspecifiedAddress(const sockaddr* addr) {
  39   if (addr->sa_family == AF_INET6) {
  40     const struct sockaddr_in6* addr_in6 =
  41         reinterpret_cast<const struct sockaddr_in6*>(addr);
  42     const struct in6_addr* sin6_addr = &addr_in6->sin6_addr;
  43     if (IN6_IS_ADDR_LOOPBACK(sin6_addr) || IN6_IS_ADDR_UNSPECIFIED(sin6_addr)) {
  44       return true;
  45     }
  46   } else if (addr->sa_family == AF_INET) {
  47     const struct sockaddr_in* addr_in =
  48         reinterpret_cast<const struct sockaddr_in*>(addr);
  49     if (addr_in->sin_addr.s_addr == INADDR_LOOPBACK ||
  50         addr_in->sin_addr.s_addr == 0) {
  51       return true;
  52     }
  53   } else {
  54     // Skip non-IP addresses.
  55     return true;
  56   }
  57   return false;
  58 }
  59
  60 }  // namespace internal
  61 #else   // OS_NACL
  62 bool GetNetworkList(NetworkInterfaceList* networks, int policy) {
  63   NOTIMPLEMENTED();
  64   return false;
  65 }
  66
  67 std::string GetWifiSSID() {
  68   NOTIMPLEMENTED();
  69   return "";
  70 }
  71 #endif  // OS_NACL
  72
  73 WifiPHYLayerProtocol GetWifiPHYLayerProtocol() {
  74   return WIFI_PHY_LAYER_PROTOCOL_UNKNOWN;
  75 }
  76
  77 scoped_ptr<ScopedWifiOptions> SetWifiOptions(int options) {
  78   return scoped_ptr<ScopedWifiOptions>();
  79 }
  80
  81
  82 }  // namespace net