Metric & meta-metric for CECPQ1 handshake latency.

net/socket/ssl_client_socket.cc

 // 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/socket/ssl_client_socket.h"
 
+#include "base/feature_list.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_util.h"
+#include "build/build_config.h"
 #include "crypto/ec_private_key.h"
 #include "net/base/net_errors.h"
 #include "net/socket/ssl_client_socket_impl.h"
 #include "net/ssl/channel_id_service.h"
 #include "net/ssl/ssl_config_service.h"
 
 namespace net {
 
+namespace {
+#if !defined(OS_NACL)
+const base::Feature kPostQuantumExperiment{"SSLPostQuantumExperiment",
+                                           base::FEATURE_DISABLED_BY_DEFAULT};
+#endif
+}  // namespace
+
 SSLClientSocket::SSLClientSocket()
     : signed_cert_timestamps_received_(false),
       stapled_ocsp_response_received_(false) {}
 
 // static
 NextProto SSLClientSocket::NextProtoFromString(base::StringPiece proto_string) {
   if (proto_string == "http1.1" || proto_string == "http/1.1") {
     return kProtoHTTP11;
   } else if (proto_string == "h2") {
     return kProtoHTTP2;
@@ skipping 45 matching lines @@
 }
 
 bool SSLClientSocket::IgnoreCertError(int error, int load_flags) {
   if (error == OK)
     return true;
   return (load_flags & LOAD_IGNORE_ALL_CERT_ERRORS) &&
          IsCertificateError(error);
 }
 
 // static
+bool SSLClientSocket::IsPostQuantumExperimentEnabled() {
+#if !defined(OS_NACL)
+  return base::FeatureList::IsEnabled(kPostQuantumExperiment);
+#else
+  return false;
+#endif
+}
+
+// static
 std::vector<uint8_t> SSLClientSocket::SerializeNextProtos(
     const NextProtoVector& next_protos) {
   std::vector<uint8_t> wire_protos;
   for (const NextProto next_proto : next_protos) {
     const std::string proto = NextProtoToString(next_proto);
     if (proto.size() > 255) {
       LOG(WARNING) << "Ignoring overlong NPN/ALPN protocol: " << proto;
       continue;
     }
     if (proto.size() == 0) {
       LOG(WARNING) << "Ignoring empty NPN/ALPN protocol";
       continue;
     }
     wire_protos.push_back(proto.size());
     for (const char ch : proto) {
       wire_protos.push_back(static_cast<uint8_t>(ch));
     }
   }
 
   return wire_protos;
 }
 
 }  // namespace net