Tighten link-local IPv6 routing exclusion check

webrtc/p2p/base/port.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 454 matching lines @@
   return true;
 }
 
 bool Port::IsCompatibleAddress(const rtc::SocketAddress& addr) {
   int family = ip().family();
   // We use single-stack sockets, so families must match.
   if (addr.family() != family) {
     return false;
   }
   // Link-local IPv6 ports can only connect to other link-local IPv6 ports.
-  if (family == AF_INET6 && (IPIsPrivate(ip()) != IPIsPrivate(addr.ipaddr()))) {
+  if (family == AF_INET6 &&
+      (IPIsLinkLocal(ip()) != IPIsLinkLocal(addr.ipaddr()))) {
     return false;
   }
   return true;
 }
 
 bool Port::ParseStunUsername(const StunMessage* stun_msg,
                              std::string* local_ufrag,
                              std::string* remote_ufrag,
                              IceProtocolType* remote_protocol_type) const {
   // The packet must include a username that either begins or ends with our
@@ skipping 1065 matching lines @@
     ASSERT(sent < 0);
     error_ = port_->GetError();
     sent_packets_discarded_++;
   } else {
     send_rate_tracker_.Update(sent);
   }
   return sent;
 }
 
 }  // namespace cricket