Reland 1531763006

webrtc/base/network.cc

Index: webrtc/base/network.cc
diff --git a/webrtc/base/network.cc b/webrtc/base/network.cc
index 2dcfa1762375f96654e9be8130ebdd2a38c319ac..4469518a03568c45617747ff9869becaf33ac343 100644
--- a/webrtc/base/network.cc
+++ b/webrtc/base/network.cc
@@ -24,23 +24,13 @@
 #elif !defined(__native_client__)
 #include <net/if.h>
 #endif
-#include <sys/socket.h>
-#include <sys/utsname.h>
-#include <sys/ioctl.h>
-#include <unistd.h>
-#include <errno.h>
-
-#if defined(WEBRTC_ANDROID)
-#include "webrtc/base/ifaddrs-android.h"
-#elif !defined(__native_client__)
-#include <ifaddrs.h>
-#endif
-
 #endif  // WEBRTC_POSIX
 
 #if defined(WEBRTC_WIN)
 #include "webrtc/base/win32.h"
 #include <Iphlpapi.h>
+#elif !defined(__native_client__)
+#include "webrtc/base/ifaddrs_converter.h"
 #endif
 
 #include <stdio.h>
@@ -129,7 +119,7 @@ std::string AdapterTypeToString(AdapterType type) {
   }
 }
 
-bool IsIgnoredIPv6(const IPAddress& ip) {
+bool IsIgnoredIPv6(const InterfaceAddress& ip) {
   if (ip.family() != AF_INET6) {
     return false;
   }
@@ -146,6 +136,11 @@ bool IsIgnoredIPv6(const IPAddress& ip) {
     return true;
   }
 
+  // Ignore deprecated IPv6.
+  if (ip.ipv6_flags() & IPV6_ADDRESS_FLAG_DEPRECATED) {
+    return true;
+  }
+
   return false;
 }
 
@@ -393,49 +388,47 @@ bool BasicNetworkManager::CreateNetworks(bool include_ignored,
 
 #elif defined(WEBRTC_POSIX)
 void BasicNetworkManager::ConvertIfAddrs(struct ifaddrs* interfaces,
+                                         IfAddrsConverter* ifaddrs_converter,
                                          bool include_ignored,
                                          NetworkList* networks) const {
   NetworkMap current_networks;
+
   for (struct ifaddrs* cursor = interfaces;
        cursor != NULL; cursor = cursor->ifa_next) {
     IPAddress prefix;
     IPAddress mask;
-    IPAddress ip;
+    InterfaceAddress ip;
     int scope_id = 0;
 
     // Some interfaces may not have address assigned.
-    if (!cursor->ifa_addr || !cursor->ifa_netmask)
+    if (!cursor->ifa_addr || !cursor->ifa_netmask) {
       continue;
+    }
+    // Skip ones which are down.
+    if (!(cursor->ifa_flags & IFF_RUNNING)) {
+      continue;
+    }
+    // Skip unknown family.
+    if (cursor->ifa_addr->sa_family != AF_INET &&
+        cursor->ifa_addr->sa_family != AF_INET6) {
+      continue;
+    }
+    // Skip IPv6 if not enabled.
+    if (cursor->ifa_addr->sa_family == AF_INET6 && !ipv6_enabled()) {
+      continue;
+    }
+    // Convert to InterfaceAddress.
+    if (!ifaddrs_converter->ConvertIfAddrsToIPAddress(cursor, &ip, &mask)) {
+      continue;
+    }
 
-    switch (cursor->ifa_addr->sa_family) {
-      case AF_INET: {
-        ip = IPAddress(
-            reinterpret_cast<sockaddr_in*>(cursor->ifa_addr)->sin_addr);
-        mask = IPAddress(
-            reinterpret_cast<sockaddr_in*>(cursor->ifa_netmask)->sin_addr);
-        break;
-      }
-      case AF_INET6: {
-        if (ipv6_enabled()) {
-          ip = IPAddress(
-              reinterpret_cast<sockaddr_in6*>(cursor->ifa_addr)->sin6_addr);
-
-          if (IsIgnoredIPv6(ip)) {
-            continue;
-          }
-
-          mask = IPAddress(
-              reinterpret_cast<sockaddr_in6*>(cursor->ifa_netmask)->sin6_addr);
-          scope_id =
-              reinterpret_cast<sockaddr_in6*>(cursor->ifa_addr)->sin6_scope_id;
-          break;
-        } else {
-          continue;
-        }
-      }
-      default: {
+    // Special case for IPv6 address.
+    if (cursor->ifa_addr->sa_family == AF_INET6) {
+      if (IsIgnoredIPv6(ip)) {
         continue;
       }
+      scope_id =
+          reinterpret_cast<sockaddr_in6*>(cursor->ifa_addr)->sin6_scope_id;
     }
 
     int prefix_length = CountIPMaskBits(mask);
@@ -481,7 +474,9 @@ bool BasicNetworkManager::CreateNetworks(bool include_ignored,
     return false;
   }
 
-  ConvertIfAddrs(interfaces, include_ignored, networks);
+  rtc::scoped_ptr<IfAddrsConverter> ifaddrs_converter(CreateIfAddrsConverter());
+  ConvertIfAddrs(interfaces, ifaddrs_converter.get(), include_ignored,
+                 networks);
 
   freeifaddrs(interfaces);
   return true;