10f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 20f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 30f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// found in the LICENSE file. 40f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 50f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/quic_crypto_client_config.h" 60f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 75f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "base/metrics/histogram.h" 8116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#include "base/metrics/sparse_histogram.h" 90f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "base/stl_util.h" 10effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "base/strings/string_util.h" 110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/cert_compressor.h" 12effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "net/quic/crypto/chacha20_poly1305_encrypter.h" 130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/channel_id.h" 140f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/common_cert_set.h" 150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/crypto_framer.h" 160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/crypto_utils.h" 170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/curve25519_key_exchange.h" 180f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/key_exchange.h" 190f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/p256_key_exchange.h" 200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/proof_verifier.h" 210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/crypto/quic_encrypter.h" 220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "net/quic/quic_utils.h" 230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)using base::StringPiece; 25effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochusing std::find; 26a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)using std::make_pair; 270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)using std::map; 280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)using std::string; 290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)using std::vector; 300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)namespace net { 320f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 335f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)namespace { 345f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 355f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)enum ServerConfigState { 365f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // WARNING: Do not change the numerical values of any of server config state. 375f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // Do not remove deprecated server config states - just comment them as 385f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // deprecated. 395f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_EMPTY = 0, 405f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_INVALID = 1, 415f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_CORRUPTED = 2, 425f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_EXPIRED = 3, 435f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_INVALID_EXPIRY = 4, 445f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 455f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // NOTE: Add new server config states only immediately above this line. Make 465f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // sure to update the QuicServerConfigState enum in 475f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // tools/metrics/histograms/histograms.xml accordingly. 485f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) SERVER_CONFIG_COUNT 495f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)}; 505f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 515f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)void RecordServerConfigState(ServerConfigState server_config_state) { 525f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) UMA_HISTOGRAM_ENUMERATION("Net.QuicClientHelloServerConfigState", 535f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) server_config_state, SERVER_CONFIG_COUNT); 545f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 555f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 565f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} // namespace 575f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 58effb81e5f8246d0db0270817048dc992db66e9fbBen MurdochQuicCryptoClientConfig::QuicCryptoClientConfig() 59effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch : disable_ecdsa_(false) {} 600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::~QuicCryptoClientConfig() { 620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) STLDeleteValues(&cached_states_); 630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState::CachedState() 660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) : server_config_valid_(false), 670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) generation_counter_(0) {} 680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState::~CachedState() {} 700f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)bool QuicCryptoClientConfig::CachedState::IsComplete(QuicWallTime now) const { 725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (server_config_.empty()) { 735f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RecordServerConfigState(SERVER_CONFIG_EMPTY); 745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return false; 755f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 775f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (!server_config_valid_) { 785f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RecordServerConfigState(SERVER_CONFIG_INVALID); 790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return false; 800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CryptoHandshakeMessage* scfg = GetServerConfig(); 830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!scfg) { 840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Should be impossible short of cache corruption. 850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(false); 865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RecordServerConfigState(SERVER_CONFIG_CORRUPTED); 870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return false; 880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) uint64 expiry_seconds; 915f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (scfg->GetUint64(kEXPY, &expiry_seconds) != QUIC_NO_ERROR) { 925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RecordServerConfigState(SERVER_CONFIG_INVALID_EXPIRY); 935f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return false; 945f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 955f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (now.ToUNIXSeconds() >= expiry_seconds) { 965f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) UMA_HISTOGRAM_CUSTOM_TIMES( 975f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) "Net.QuicClientHelloServerConfig.InvalidDuration", 985f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) base::TimeDelta::FromSeconds(now.ToUNIXSeconds() - expiry_seconds), 995f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) base::TimeDelta::FromMinutes(1), base::TimeDelta::FromDays(20), 50); 1005f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) RecordServerConfigState(SERVER_CONFIG_EXPIRED); 1010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return false; 1020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1030f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1040f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return true; 1050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 1060f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool QuicCryptoClientConfig::CachedState::IsEmpty() const { 108a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return server_config_.empty(); 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 110a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const CryptoHandshakeMessage* 1120f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState::GetServerConfig() const { 1130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (server_config_.empty()) { 1140f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return NULL; 1150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!scfg_.get()) { 1180f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scfg_.reset(CryptoFramer::ParseMessage(server_config_)); 1190f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(scfg_.get()); 1200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return scfg_.get(); 1220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 1230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicErrorCode QuicCryptoClientConfig::CachedState::SetServerConfig( 1250f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece server_config, QuicWallTime now, string* error_details) { 1260f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const bool matches_existing = server_config == server_config_; 1270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Even if the new server config matches the existing one, we still wish to 1290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // reject it if it has expired. 1300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scoped_ptr<CryptoHandshakeMessage> new_scfg_storage; 1310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CryptoHandshakeMessage* new_scfg; 1320f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1330f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!matches_existing) { 1340f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) new_scfg_storage.reset(CryptoFramer::ParseMessage(server_config)); 1350f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) new_scfg = new_scfg_storage.get(); 1360f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } else { 1370f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) new_scfg = GetServerConfig(); 1380f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1390f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1400f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!new_scfg) { 1410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "SCFG invalid"; 1420f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 1430f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1450f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) uint64 expiry_seconds; 1460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (new_scfg->GetUint64(kEXPY, &expiry_seconds) != QUIC_NO_ERROR) { 1470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "SCFG missing EXPY"; 1480f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 1490f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1500f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1510f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (now.ToUNIXSeconds() >= expiry_seconds) { 1520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "SCFG has expired"; 1530f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_SERVER_CONFIG_EXPIRED; 1540f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1550f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1560f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!matches_existing) { 1570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_ = server_config.as_string(); 1580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) SetProofInvalid(); 1590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scfg_.reset(new_scfg_storage.release()); 1600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_NO_ERROR; 1620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 1630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::InvalidateServerConfig() { 1650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_.clear(); 1660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scfg_.reset(); 1670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) SetProofInvalid(); 1680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 1690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1700f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::SetProof(const vector<string>& certs, 1710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece signature) { 1720f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) bool has_changed = 1730f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) signature != server_config_sig_ || certs_.size() != certs.size(); 1740f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1750f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!has_changed) { 1760f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) for (size_t i = 0; i < certs_.size(); i++) { 1770f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (certs_[i] != certs[i]) { 1780f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) has_changed = true; 1790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) break; 1800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!has_changed) { 1850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return; 1860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 1870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // If the proof has changed then it needs to be revalidated. 1890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) SetProofInvalid(); 1900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) certs_ = certs; 1910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_sig_ = signature.as_string(); 1920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 1930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1945c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liuvoid QuicCryptoClientConfig::CachedState::Clear() { 1955c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu server_config_.clear(); 1965c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu source_address_token_.clear(); 1975c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu certs_.clear(); 1985c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu server_config_sig_.clear(); 1995c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu server_config_valid_ = false; 2005c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu proof_verify_details_.reset(); 2015c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu scfg_.reset(); 2025c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu ++generation_counter_; 2035c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu} 2045c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu 2050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::ClearProof() { 2060f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) SetProofInvalid(); 2070f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) certs_.clear(); 2080f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_sig_.clear(); 2090f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2100f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::SetProofValid() { 2120f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_valid_ = true; 2130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2140f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::SetProofInvalid() { 2160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_valid_ = false; 2170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) ++generation_counter_; 2180f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2190f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 220a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool QuicCryptoClientConfig::CachedState::Initialize( 221a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) StringPiece server_config, 222a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) StringPiece source_address_token, 223a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const vector<string>& certs, 224a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) StringPiece signature, 225a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicWallTime now) { 226a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) DCHECK(server_config_.empty()); 227a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 228a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (server_config.empty()) { 229a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 230a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 231a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 232a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) string error_details; 233a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicErrorCode error = SetServerConfig(server_config, now, 234a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) &error_details); 235a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (error != QUIC_NO_ERROR) { 236a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) DVLOG(1) << "SetServerConfig failed with " << error_details; 237a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 238a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 239a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 240a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) signature.CopyToString(&server_config_sig_); 241a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) source_address_token.CopyToString(&source_address_token_); 242a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) certs_ = certs; 243a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 244a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 245a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 2460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const string& QuicCryptoClientConfig::CachedState::server_config() const { 2470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return server_config_; 2480f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2490f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2500f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const string& 2510f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState::source_address_token() const { 2520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return source_address_token_; 2530f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2540f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2550f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const vector<string>& QuicCryptoClientConfig::CachedState::certs() const { 2560f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return certs_; 2570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const string& QuicCryptoClientConfig::CachedState::signature() const { 2600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return server_config_sig_; 2610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)bool QuicCryptoClientConfig::CachedState::proof_valid() const { 2640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return server_config_valid_; 2650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)uint64 QuicCryptoClientConfig::CachedState::generation_counter() const { 2680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return generation_counter_; 2690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2700f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const ProofVerifyDetails* 2720f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState::proof_verify_details() const { 2730f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return proof_verify_details_.get(); 2740f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2750f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2760f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::set_source_address_token( 2770f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece token) { 2780f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) source_address_token_ = token.as_string(); 2790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::SetProofVerifyDetails( 2820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) ProofVerifyDetails* details) { 2830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) proof_verify_details_.reset(details); 2840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 2850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 2860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::CachedState::InitializeFrom( 2870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicCryptoClientConfig::CachedState& other) { 2880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(server_config_.empty()); 2890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(!server_config_valid_); 2900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_ = other.server_config_; 2910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) source_address_token_ = other.source_address_token_; 2920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) certs_ = other.certs_; 2930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_sig_ = other.server_config_sig_; 2940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) server_config_valid_ = other.server_config_valid_; 2955f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (other.proof_verify_details_.get() != NULL) { 2965f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) proof_verify_details_.reset(other.proof_verify_details_->Clone()); 2975f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 298a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ++generation_counter_; 2990f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 3000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::SetDefaults() { 3020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Key exchange methods. 3030f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) kexs.resize(2); 3040f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) kexs[0] = kC255; 3050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) kexs[1] = kP256; 3060f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 307effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // Authenticated encryption algorithms. Prefer ChaCha20 by default. 308effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead.clear(); 309effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (ChaCha20Poly1305Encrypter::IsSupported()) { 310effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead.push_back(kCC12); 311effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 312effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead.push_back(kAESG); 313effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 314effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch disable_ecdsa_ = false; 3150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 3160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicCryptoClientConfig::CachedState* QuicCryptoClientConfig::LookupOrCreate( 318e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& server_id) { 319e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch CachedStateMap::const_iterator it = cached_states_.find(server_id); 3200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (it != cached_states_.end()) { 3210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return it->second; 3220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 323a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 324a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) CachedState* cached = new CachedState; 325e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch cached_states_.insert(make_pair(server_id, cached)); 326e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch PopulateFromCanonicalConfig(server_id, cached); 327a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return cached; 3280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 3290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3300529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochvoid QuicCryptoClientConfig::ClearCachedStates() { 3310529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch for (CachedStateMap::const_iterator it = cached_states_.begin(); 3320529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch it != cached_states_.end(); ++it) { 3335c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu it->second->Clear(); 3340529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch } 3350529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 3360529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 3370f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::FillInchoateClientHello( 338e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& server_id, 339f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const QuicVersion preferred_version, 3400f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CachedState* cached, 3410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicCryptoNegotiatedParameters* out_params, 3420f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CryptoHandshakeMessage* out) const { 3430f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->set_tag(kCHLO); 3440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->set_minimum_size(kClientHelloMinimumSize); 3450f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Server name indication. We only send SNI if it's a valid domain name, as 3470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // per the spec. 348e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (CryptoUtils::IsValidSNI(server_id.host())) { 349e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch out->SetStringPiece(kSNI, server_id.host()); 3500f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 351f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) out->SetValue(kVER, QuicVersionToQuicTag(preferred_version)); 3520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 35346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) if (!user_agent_id_.empty()) { 35446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) out->SetStringPiece(kUAID, user_agent_id_); 35546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) } 35646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) 3570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!cached->source_address_token().empty()) { 3580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kSourceAddressTokenTag, cached->source_address_token()); 3590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 361e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (server_id.is_https()) { 362effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (disable_ecdsa_) { 3630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetTaglist(kPDMD, kX59R, 0); 3640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } else { 3650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetTaglist(kPDMD, kX509, 0); 3660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (common_cert_sets) { 3700f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kCCS, common_cert_sets->GetCommonHashes()); 3710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3720f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3730f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const vector<string>& certs = cached->certs(); 3740f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // We save |certs| in the QuicCryptoNegotiatedParameters so that, if the 3750f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // client config is being used for multiple connections, another connection 3760f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // doesn't update the cached certificates and cause us to be unable to 3770f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // process the server's compressed certificate chain. 3780f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->cached_certs = certs; 3790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!certs.empty()) { 3800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) vector<uint64> hashes; 3810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hashes.reserve(certs.size()); 3820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) for (vector<string>::const_iterator i = certs.begin(); 3830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) i != certs.end(); ++i) { 3840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hashes.push_back(QuicUtils::FNV1a_64_Hash(i->data(), i->size())); 3850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetVector(kCCRT, hashes); 3870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 3880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 3890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 3900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicErrorCode QuicCryptoClientConfig::FillClientHello( 391e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& server_id, 392a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionId connection_id, 393f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const QuicVersion preferred_version, 3940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CachedState* cached, 3950f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicWallTime now, 3960f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicRandom* rand, 397f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const ChannelIDKey* channel_id_key, 3980f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicCryptoNegotiatedParameters* out_params, 3990f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CryptoHandshakeMessage* out, 4000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string* error_details) const { 4010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(error_details != NULL); 4020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 403e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch FillInchoateClientHello(server_id, preferred_version, cached, 404f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) out_params, out); 4050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4060f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CryptoHandshakeMessage* scfg = cached->GetServerConfig(); 4070f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!scfg) { 4080f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // This should never happen as our caller should have checked 4090f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // cached->IsComplete() before calling this function. 4100f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Handshake not ready"; 4110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_INTERNAL_ERROR; 4120f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4140f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece scid; 4150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!scfg->GetStringPiece(kSCID, &scid)) { 4160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "SCFG missing SCID"; 4170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 4180f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4190f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kSCID, scid); 4200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicTag* their_aeads; 4220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicTag* their_key_exchanges; 4230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) size_t num_their_aeads, num_their_key_exchanges; 4240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (scfg->GetTaglist(kAEAD, &their_aeads, 4250f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) &num_their_aeads) != QUIC_NO_ERROR || 4260f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scfg->GetTaglist(kKEXS, &their_key_exchanges, 4270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) &num_their_key_exchanges) != QUIC_NO_ERROR) { 4280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Missing AEAD or KEXS"; 4290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 4300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 432effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // AEAD: the work loads on the client and server are symmetric. Since the 433effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // client is more likely to be CPU-constrained, break the tie by favoring 434effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // the client's preference. 435effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // Key exchange: the client does more work than the server, so favor the 436effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // client's preference. 4370f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) size_t key_exchange_index; 4380f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!QuicUtils::FindMutualTag( 439effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead, their_aeads, num_their_aeads, QuicUtils::LOCAL_PRIORITY, 4400f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) &out_params->aead, NULL) || 4410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) !QuicUtils::FindMutualTag( 4420f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) kexs, their_key_exchanges, num_their_key_exchanges, 443effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch QuicUtils::LOCAL_PRIORITY, &out_params->key_exchange, 4440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) &key_exchange_index)) { 4450f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Unsupported AEAD or KEXS"; 4460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_NO_SUPPORT; 4470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4480f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetTaglist(kAEAD, out_params->aead, 0); 4490f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetTaglist(kKEXS, out_params->key_exchange, 0); 4500f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4510f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece public_value; 4520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (scfg->GetNthValue24(kPUBS, key_exchange_index, &public_value) != 4530f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QUIC_NO_ERROR) { 4540f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Missing public value"; 4550f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 4560f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece orbit; 4590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!scfg->GetStringPiece(kORBT, &orbit) || orbit.size() != kOrbitSize) { 4600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "SCFG missing OBIT"; 4610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND; 4620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CryptoUtils::GenerateNonce(now, rand, orbit, &out_params->client_nonce); 4650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kNONC, out_params->client_nonce); 4660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!out_params->server_nonce.empty()) { 4670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kServerNonceTag, out_params->server_nonce); 4680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4700f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) switch (out_params->key_exchange) { 4710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) case kC255: 4720f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->client_key_exchange.reset(Curve25519KeyExchange::New( 4730f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) Curve25519KeyExchange::NewPrivateKey(rand))); 4740f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) break; 4750f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) case kP256: 4760f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->client_key_exchange.reset(P256KeyExchange::New( 4770f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) P256KeyExchange::NewPrivateKey())); 4780f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) break; 4790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) default: 4800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(false); 4810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Configured to support an unknown key exchange"; 4820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_INTERNAL_ERROR; 4830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!out_params->client_key_exchange->CalculateSharedKey( 4860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) public_value, &out_params->initial_premaster_secret)) { 4870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Key exchange failure"; 4880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 4890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 4900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kPUBS, out_params->client_key_exchange->public_value()); 4910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 492f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) if (channel_id_key) { 4930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // In order to calculate the encryption key for the CETV block we need to 4940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // serialise the client hello as it currently is (i.e. without the CETV 4950f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // block). For this, the client hello is serialized without padding. 4960f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const size_t orig_min_size = out->minimum_size(); 4970f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->set_minimum_size(0); 4980f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 4990f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CryptoHandshakeMessage cetv; 5000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cetv.set_tag(kCETV); 5010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string hkdf_input; 5030f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicData& client_hello_serialized = out->GetSerialized(); 5040f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(QuicCryptoConfig::kCETVLabel, 5050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) strlen(QuicCryptoConfig::kCETVLabel) + 1); 506a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) hkdf_input.append(reinterpret_cast<char*>(&connection_id), 507a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) sizeof(connection_id)); 5080f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(client_hello_serialized.data(), 5090f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) client_hello_serialized.length()); 5100f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(cached->server_config()); 5110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 512cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) string key = channel_id_key->SerializeKey(); 513cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) string signature; 514cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!channel_id_key->Sign(hkdf_input, &signature)) { 5150f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Channel ID signature failed"; 5160f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CHANNEL_ID_SIGNATURE; 5170f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5180f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5190f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cetv.SetStringPiece(kCIDK, key); 5200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cetv.SetStringPiece(kCIDS, signature); 5210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CrypterPair crypters; 5230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!CryptoUtils::DeriveKeys(out_params->initial_premaster_secret, 5240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->aead, out_params->client_nonce, 5250f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->server_nonce, hkdf_input, 5265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) CryptoUtils::CLIENT, &crypters, 5275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) NULL /* subkey secret */)) { 5280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Symmetric key setup failed"; 5290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED; 5300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5320f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicData& cetv_plaintext = cetv.GetSerialized(); 5330f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) scoped_ptr<QuicData> cetv_ciphertext(crypters.encrypter->EncryptPacket( 5340f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 0 /* sequence number */, 5350f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece() /* associated data */, 5360f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cetv_plaintext.AsStringPiece())); 5370f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!cetv_ciphertext.get()) { 5380f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Packet encryption failed"; 5390f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_ENCRYPTION_FAILURE; 5400f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5420f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->SetStringPiece(kCETV, cetv_ciphertext->AsStringPiece()); 5430f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->MarkDirty(); 5440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5450f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out->set_minimum_size(orig_min_size); 5460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 548f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) // Derive the symmetric keys and set up the encrypters and decrypters. 549f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) // Set the following members of out_params: 550f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) // out_params->hkdf_input_suffix 551f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) // out_params->initial_crypters 5520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->hkdf_input_suffix.clear(); 553a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) out_params->hkdf_input_suffix.append(reinterpret_cast<char*>(&connection_id), 554a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) sizeof(connection_id)); 5550f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const QuicData& client_hello_serialized = out->GetSerialized(); 5560f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->hkdf_input_suffix.append(client_hello_serialized.data(), 5570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) client_hello_serialized.length()); 5580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->hkdf_input_suffix.append(cached->server_config()); 5590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string hkdf_input; 5610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const size_t label_len = strlen(QuicCryptoConfig::kInitialLabel) + 1; 5620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.reserve(label_len + out_params->hkdf_input_suffix.size()); 5630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(QuicCryptoConfig::kInitialLabel, label_len); 5640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(out_params->hkdf_input_suffix); 5650f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!CryptoUtils::DeriveKeys( 5670f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->initial_premaster_secret, out_params->aead, 5680f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->client_nonce, out_params->server_nonce, hkdf_input, 5695f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) CryptoUtils::CLIENT, &out_params->initial_crypters, 5705f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) NULL /* subkey secret */)) { 5710f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Symmetric key setup failed"; 5720f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED; 5730f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5740f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5750f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_NO_ERROR; 5760f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 5770f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 578116680a4aac90f2aa7413d9095a592090648e557Ben MurdochQuicErrorCode QuicCryptoClientConfig::CacheNewServerConfig( 579116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const CryptoHandshakeMessage& message, 5800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicWallTime now, 581116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const vector<string>& cached_certs, 5820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CachedState* cached, 5830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string* error_details) { 5840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(error_details != NULL); 5850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece scfg; 587116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!message.GetStringPiece(kSCFG, &scfg)) { 5880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Missing SCFG"; 5890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND; 5900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicErrorCode error = cached->SetServerConfig(scfg, now, error_details); 5930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (error != QUIC_NO_ERROR) { 5940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return error; 5950f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 5960f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 5970f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece token; 598116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (message.GetStringPiece(kSourceAddressTokenTag, &token)) { 5990f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cached->set_source_address_token(token); 6000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 6010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece proof, cert_bytes; 603116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch bool has_proof = message.GetStringPiece(kPROF, &proof); 604116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch bool has_cert = message.GetStringPiece(kCertificateTag, &cert_bytes); 6050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (has_proof && has_cert) { 6060f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) vector<string> certs; 607116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!CertCompressor::DecompressChain(cert_bytes, cached_certs, 6080f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) common_cert_sets, &certs)) { 6090f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Certificate data invalid"; 6100f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 6110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 6120f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cached->SetProof(certs, proof); 6140f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } else { 6156e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) if (proof_verifier() != NULL) { 6166e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) // Secure QUIC: clear existing proof as we have been sent a new SCFG 6176e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) // without matching proof/certs. 6186e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) cached->ClearProof(); 6196e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) } 6206e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) 6210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (has_proof && !has_cert) { 6220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Certificate missing"; 6230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 6240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 6250f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6260f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!has_proof && has_cert) { 6270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Proof missing"; 6280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 6290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 6300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 6310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 632116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return QUIC_NO_ERROR; 633116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 634116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 635116680a4aac90f2aa7413d9095a592090648e557Ben MurdochQuicErrorCode QuicCryptoClientConfig::ProcessRejection( 636116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const CryptoHandshakeMessage& rej, 637116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch QuicWallTime now, 638116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch CachedState* cached, 6395f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) bool is_https, 640116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch QuicCryptoNegotiatedParameters* out_params, 641116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch string* error_details) { 642116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(error_details != NULL); 643116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 644116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (rej.tag() != kREJ) { 645116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch *error_details = "Message is not REJ"; 646116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return QUIC_CRYPTO_INTERNAL_ERROR; 647116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 648116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 649116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch QuicErrorCode error = CacheNewServerConfig(rej, now, out_params->cached_certs, 650116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch cached, error_details); 651116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (error != QUIC_NO_ERROR) { 652116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return error; 653116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 654116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 655116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch StringPiece nonce; 656116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (rej.GetStringPiece(kServerNonceTag, &nonce)) { 657116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch out_params->server_nonce = nonce.as_string(); 658116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 659116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 660116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const uint32* reject_reasons; 6616d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) size_t num_reject_reasons; 662116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch COMPILE_ASSERT(sizeof(QuicTag) == sizeof(uint32), header_out_of_sync); 6636d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) if (rej.GetTaglist(kRREJ, &reject_reasons, 6646d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) &num_reject_reasons) == QUIC_NO_ERROR) { 665116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch uint32 packed_error = 0; 6666d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) for (size_t i = 0; i < num_reject_reasons; ++i) { 667116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // HANDSHAKE_OK is 0 and don't report that as error. 668116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (reject_reasons[i] == HANDSHAKE_OK || reject_reasons[i] >= 32) { 669116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch continue; 670116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 671116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch HandshakeFailureReason reason = 672116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch static_cast<HandshakeFailureReason>(reject_reasons[i]); 673116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch packed_error |= 1 << (reason - 1); 6746d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) } 675116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DVLOG(1) << "Reasons for rejection: " << packed_error; 6765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (is_https) { 6775f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Net.QuicClientHelloRejectReasons.Secure", 6785f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) packed_error); 6795f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } else { 6805f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Net.QuicClientHelloRejectReasons.Insecure", 6815f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) packed_error); 6825f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) } 6836d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) } 6846d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 6850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_NO_ERROR; 6860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 6870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)QuicErrorCode QuicCryptoClientConfig::ProcessServerHello( 6890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const CryptoHandshakeMessage& server_hello, 690a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionId connection_id, 691f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const QuicVersionVector& negotiated_versions, 6920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CachedState* cached, 6930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicCryptoNegotiatedParameters* out_params, 6940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string* error_details) { 6950f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) DCHECK(error_details != NULL); 6960f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6970f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (server_hello.tag() != kSHLO) { 6980f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Bad tag"; 6990f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_TYPE; 7000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 7010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 702f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const QuicTag* supported_version_tags; 703f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) size_t num_supported_versions; 704a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 705f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (server_hello.GetTaglist(kVER, &supported_version_tags, 706a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) &num_supported_versions) != QUIC_NO_ERROR) { 707a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) *error_details = "server hello missing version list"; 708a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 709a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 710a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!negotiated_versions.empty()) { 711a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool mismatch = num_supported_versions != negotiated_versions.size(); 712a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) for (size_t i = 0; i < num_supported_versions && !mismatch; ++i) { 713a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) mismatch = QuicTagToQuicVersion(supported_version_tags[i]) != 714a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) negotiated_versions[i]; 715a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 716a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // The server sent a list of supported versions, and the connection 717a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // reports that there was a version negotiation during the handshake. 718f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Ensure that these two lists are identical. 719a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (mismatch) { 720a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) *error_details = "Downgrade attack detected"; 721a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return QUIC_VERSION_NEGOTIATION_MISMATCH; 722f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 723f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 724f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 7250f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Learn about updated source address tokens. 7260f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece token; 7270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (server_hello.GetStringPiece(kSourceAddressTokenTag, &token)) { 7280f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cached->set_source_address_token(token); 7290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 7300f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7310f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // TODO(agl): 7320f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // learn about updated SCFGs. 7330f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7340f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) StringPiece public_value; 7350f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!server_hello.GetStringPiece(kPUBS, &public_value)) { 7360f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "server hello missing forward secure public value"; 7370f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 7380f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 7390f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7400f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!out_params->client_key_exchange->CalculateSharedKey( 7410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) public_value, &out_params->forward_secure_premaster_secret)) { 7420f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Key exchange failure"; 7430f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER; 7440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 7450f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7460f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) string hkdf_input; 7470f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) const size_t label_len = strlen(QuicCryptoConfig::kForwardSecureLabel) + 1; 7480f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.reserve(label_len + out_params->hkdf_input_suffix.size()); 7490f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(QuicCryptoConfig::kForwardSecureLabel, label_len); 7500f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) hkdf_input.append(out_params->hkdf_input_suffix); 7510f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7520f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!CryptoUtils::DeriveKeys( 7530f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->forward_secure_premaster_secret, out_params->aead, 7540f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) out_params->client_nonce, out_params->server_nonce, hkdf_input, 7555f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) CryptoUtils::CLIENT, &out_params->forward_secure_crypters, 7565f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) &out_params->subkey_secret)) { 7570f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) *error_details = "Symmetric key setup failed"; 7580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED; 7590f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 7600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return QUIC_NO_ERROR; 7620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 7630f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 764116680a4aac90f2aa7413d9095a592090648e557Ben MurdochQuicErrorCode QuicCryptoClientConfig::ProcessServerConfigUpdate( 765116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const CryptoHandshakeMessage& server_config_update, 766116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch QuicWallTime now, 767116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch CachedState* cached, 768116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch QuicCryptoNegotiatedParameters* out_params, 769116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch string* error_details) { 770116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(error_details != NULL); 771116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 772116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (server_config_update.tag() != kSCUP) { 773116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch *error_details = "ServerConfigUpdate must have kSCUP tag."; 774116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return QUIC_INVALID_CRYPTO_MESSAGE_TYPE; 775116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 776116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 777116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return CacheNewServerConfig(server_config_update, now, 778116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch out_params->cached_certs, cached, error_details); 779116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 780116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 7810f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)ProofVerifier* QuicCryptoClientConfig::proof_verifier() const { 7820f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return proof_verifier_.get(); 7830f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 7840f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7850f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::SetProofVerifier(ProofVerifier* verifier) { 7860f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) proof_verifier_.reset(verifier); 7870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 7880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 789cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)ChannelIDSource* QuicCryptoClientConfig::channel_id_source() const { 790cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return channel_id_source_.get(); 7910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 7920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 793cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void QuicCryptoClientConfig::SetChannelIDSource(ChannelIDSource* source) { 794cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) channel_id_source_.reset(source); 7950f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 7960f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 7970f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)void QuicCryptoClientConfig::InitializeFrom( 798e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& server_id, 799e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& canonical_server_id, 8000f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QuicCryptoClientConfig* canonical_crypto_config) { 8010f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) CachedState* canonical_cached = 802e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch canonical_crypto_config->LookupOrCreate(canonical_server_id); 8030f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) if (!canonical_cached->proof_valid()) { 8040f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) return; 8050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) } 806e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch CachedState* cached = LookupOrCreate(server_id); 8070f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) cached->InitializeFrom(*canonical_cached); 8080f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} 8090f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 810effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid QuicCryptoClientConfig::AddCanonicalSuffix(const string& suffix) { 811effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch canoncial_suffixes_.push_back(suffix); 812effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 813effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 814effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid QuicCryptoClientConfig::PreferAesGcm() { 815effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch DCHECK(!aead.empty()); 816effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (aead.size() <= 1) { 817effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch return; 818effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 819effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch QuicTagVector::iterator pos = find(aead.begin(), aead.end(), kAESG); 820effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (pos != aead.end()) { 821effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead.erase(pos); 822effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch aead.insert(aead.begin(), kAESG); 823effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 824effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 825effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 826effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid QuicCryptoClientConfig::DisableEcdsa() { 827effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch disable_ecdsa_ = true; 828effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 829effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 830effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid QuicCryptoClientConfig::PopulateFromCanonicalConfig( 831e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& server_id, 832effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch CachedState* server_state) { 833effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch DCHECK(server_state->IsEmpty()); 834c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch size_t i = 0; 835effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch for (; i < canoncial_suffixes_.size(); ++i) { 836e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (EndsWith(server_id.host(), canoncial_suffixes_[i], false)) { 837effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch break; 838effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 839effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 840effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (i == canoncial_suffixes_.size()) 841effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch return; 842effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 843e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch QuicServerId suffix_server_id(canoncial_suffixes_[i], server_id.port(), 844e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch server_id.is_https(), 845e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch server_id.privacy_mode()); 846e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (!ContainsKey(canonical_server_map_, suffix_server_id)) { 847effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // This is the first host we've seen which matches the suffix, so make it 848effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // canonical. 849e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch canonical_server_map_[suffix_server_id] = server_id; 850effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch return; 851effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 852effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 853e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch const QuicServerId& canonical_server_id = 854e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch canonical_server_map_[suffix_server_id]; 855e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch CachedState* canonical_state = cached_states_[canonical_server_id]; 856effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch if (!canonical_state->proof_valid()) { 857effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch return; 858effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch } 859effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 860effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch // Update canonical version to point at the "most recent" entry. 861e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch canonical_server_map_[suffix_server_id] = server_id; 862effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 863effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch server_state->InitializeFrom(*canonical_state); 864effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 865effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 8660f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)} // namespace net 867