Make QuicDispatcher to queue packets for new connections while waiting for CHLOs. Flag protected by…

net/quic/test_tools/crypto_test_utils.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/quic/test_tools/crypto_test_utils.h"
 
 #include <openssl/bn.h>
 #include <openssl/ec.h>
 #include <openssl/ecdsa.h>
 #include <openssl/evp.h>
 #include <openssl/obj_mac.h>
 #include <openssl/sha.h>
 
 #include <memory>
 
 #include "base/strings/string_util.h"
 #include "crypto/openssl_util.h"
 #include "crypto/scoped_openssl_types.h"
 #include "crypto/secure_hash.h"
 #include "net/quic/core/crypto/channel_id.h"
 #include "net/quic/core/crypto/common_cert_set.h"
 #include "net/quic/core/crypto/crypto_handshake.h"
+#include "net/quic/core/crypto/crypto_server_config_protobuf.h"
 #include "net/quic/core/crypto/quic_crypto_server_config.h"
 #include "net/quic/core/crypto/quic_decrypter.h"
 #include "net/quic/core/crypto/quic_encrypter.h"
 #include "net/quic/core/crypto/quic_random.h"
 #include "net/quic/core/quic_clock.h"
 #include "net/quic/core/quic_crypto_client_stream.h"
 #include "net/quic/core/quic_crypto_server_stream.h"
 #include "net/quic/core/quic_crypto_stream.h"
 #include "net/quic/core/quic_server_id.h"
 #include "net/quic/core/quic_utils.h"
@@ skipping 859 matching lines @@
   QuicConnectionPeer::SwapCrypters(dest_conn, framer.framer());
 
   ASSERT_EQ(0u, crypto_framer.InputBytesRemaining());
 
   for (const CryptoHandshakeMessage& message : crypto_visitor.messages()) {
     dest_stream->OnHandshakeMessage(message);
   }
   QuicConnectionPeer::SetCurrentPacket(dest_conn, StringPiece(nullptr, 0));
 }
 
+CryptoHandshakeMessage CryptoTestUtils::GenerateDefaultInchoateCHLO(
+    const QuicClock* clock,
+    QuicVersion version,
+    QuicCryptoServerConfig* crypto_config) {
+  // clang-format off
+  return CryptoTestUtils::Message(
+      "CHLO",
+      "PDMD", "X509",
+      "AEAD", "AESG",
+      "KEXS", "C255",
+      "PUBS", CryptoTestUtils::GenerateClientPublicValuesHex().c_str(),
+      "NONC", CryptoTestUtils::GenerateClientNonceHex(clock,
+                                                      crypto_config).c_str(),
+      "VER\0", QuicUtils::TagToString(
+          QuicVersionToQuicTag(version)).c_str(),
+      "$padding", static_cast<int>(kClientHelloMinimumSize),
+      nullptr);
+  // clang-format on
+}
+
+string CryptoTestUtils::GenerateClientNonceHex(
+    const QuicClock* clock,
+    QuicCryptoServerConfig* crypto_config) {
+  net::QuicCryptoServerConfig::ConfigOptions old_config_options;
+  net::QuicCryptoServerConfig::ConfigOptions new_config_options;
+  old_config_options.id = "old-config-id";
+  delete crypto_config->AddDefaultConfig(net::QuicRandom::GetInstance(), clock,
+                                         old_config_options);
+  std::unique_ptr<QuicServerConfigProtobuf> primary_config(
+      crypto_config->GenerateConfig(net::QuicRandom::GetInstance(), clock,
+                                    new_config_options));
+  primary_config->set_primary_time(clock->WallNow().ToUNIXSeconds());
+  std::unique_ptr<net::CryptoHandshakeMessage> msg(
+      crypto_config->AddConfig(primary_config.get(), clock->WallNow()));
+  StringPiece orbit;
+  CHECK(msg->GetStringPiece(net::kORBT, &orbit));
+  string nonce;
+  net::CryptoUtils::GenerateNonce(
+      clock->WallNow(), net::QuicRandom::GetInstance(),
+      StringPiece(reinterpret_cast<const char*>(orbit.data()),
+                  sizeof(orbit.size())),
+      &nonce);
+  return ("#" + net::QuicUtils::HexEncode(nonce));
+}
+
+string CryptoTestUtils::GenerateClientPublicValuesHex() {
+  char public_value[32];
+  memset(public_value, 42, sizeof(public_value));
+  return ("#" + net::QuicUtils::HexEncode(public_value, sizeof(public_value)));
+}
+
 // static
 void CryptoTestUtils::GenerateFullCHLO(
     const CryptoHandshakeMessage& inchoate_chlo,
     QuicCryptoServerConfig* crypto_config,
     IPAddress server_ip,
     IPEndPoint client_addr,
     QuicVersion version,
     const QuicClock* clock,
     QuicCryptoProof* proof,
     QuicCompressedCertsCache* compressed_certs_cache,
     CryptoHandshakeMessage* out) {
   // Pass a inchoate CHLO.
   crypto_config->ValidateClientHello(
       inchoate_chlo, client_addr.address(), server_ip, version, clock, proof,
       new FullChloGenerator(crypto_config, server_ip, client_addr, clock, proof,
                             compressed_certs_cache, out));
 }
 
 }  // namespace test
 }  // namespace net