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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/quic/quic_crypto_client_stream.h" | |
| 6 | |
| 7 #include "base/metrics/histogram.h" | |
| 8 #include "base/profiler/scoped_tracker.h" | |
| 9 #include "net/quic/crypto/crypto_protocol.h" | |
| 10 #include "net/quic/crypto/crypto_utils.h" | |
| 11 #include "net/quic/crypto/null_encrypter.h" | |
| 12 #include "net/quic/quic_client_session_base.h" | |
| 13 #include "net/quic/quic_protocol.h" | |
| 14 #include "net/quic/quic_session.h" | |
| 15 | |
| 16 using std::string; | |
| 17 | |
| 18 namespace net { | |
| 19 | |
| 20 QuicCryptoClientStream::ChannelIDSourceCallbackImpl:: | |
| 21 ChannelIDSourceCallbackImpl(QuicCryptoClientStream* stream) | |
| 22 : stream_(stream) {} | |
| 23 | |
| 24 QuicCryptoClientStream::ChannelIDSourceCallbackImpl:: | |
| 25 ~ChannelIDSourceCallbackImpl() {} | |
| 26 | |
| 27 void QuicCryptoClientStream::ChannelIDSourceCallbackImpl::Run( | |
| 28 scoped_ptr<ChannelIDKey>* channel_id_key) { | |
| 29 if (stream_ == nullptr) { | |
| 30 return; | |
| 31 } | |
| 32 | |
| 33 stream_->channel_id_key_.reset(channel_id_key->release()); | |
| 34 stream_->channel_id_source_callback_run_ = true; | |
| 35 stream_->channel_id_source_callback_ = nullptr; | |
| 36 stream_->DoHandshakeLoop(nullptr); | |
| 37 | |
| 38 // The ChannelIDSource owns this object and will delete it when this method | |
| 39 // returns. | |
| 40 } | |
| 41 | |
| 42 void QuicCryptoClientStream::ChannelIDSourceCallbackImpl::Cancel() { | |
| 43 stream_ = nullptr; | |
| 44 } | |
| 45 | |
| 46 QuicCryptoClientStream::ProofVerifierCallbackImpl::ProofVerifierCallbackImpl( | |
| 47 QuicCryptoClientStream* stream) | |
| 48 : stream_(stream) {} | |
| 49 | |
| 50 QuicCryptoClientStream::ProofVerifierCallbackImpl:: | |
| 51 ~ProofVerifierCallbackImpl() {} | |
| 52 | |
| 53 void QuicCryptoClientStream::ProofVerifierCallbackImpl::Run( | |
| 54 bool ok, | |
| 55 const string& error_details, | |
| 56 scoped_ptr<ProofVerifyDetails>* details) { | |
| 57 if (stream_ == nullptr) { | |
| 58 return; | |
| 59 } | |
| 60 | |
| 61 stream_->verify_ok_ = ok; | |
| 62 stream_->verify_error_details_ = error_details; | |
| 63 stream_->verify_details_.reset(details->release()); | |
| 64 stream_->proof_verify_callback_ = nullptr; | |
| 65 stream_->DoHandshakeLoop(nullptr); | |
| 66 | |
| 67 // The ProofVerifier owns this object and will delete it when this method | |
| 68 // returns. | |
| 69 } | |
| 70 | |
| 71 void QuicCryptoClientStream::ProofVerifierCallbackImpl::Cancel() { | |
| 72 stream_ = nullptr; | |
| 73 } | |
| 74 | |
| 75 QuicCryptoClientStream::QuicCryptoClientStream( | |
| 76 const QuicServerId& server_id, | |
| 77 QuicClientSessionBase* session, | |
| 78 ProofVerifyContext* verify_context, | |
| 79 QuicCryptoClientConfig* crypto_config) | |
| 80 : QuicCryptoStream(session), | |
| 81 next_state_(STATE_IDLE), | |
| 82 num_client_hellos_(0), | |
| 83 crypto_config_(crypto_config), | |
| 84 server_id_(server_id), | |
| 85 generation_counter_(0), | |
| 86 channel_id_sent_(false), | |
| 87 channel_id_source_callback_run_(false), | |
| 88 channel_id_source_callback_(nullptr), | |
| 89 verify_context_(verify_context), | |
| 90 proof_verify_callback_(nullptr) { | |
| 91 DCHECK(!session->connection()->is_server()); | |
| 92 } | |
| 93 | |
| 94 QuicCryptoClientStream::~QuicCryptoClientStream() { | |
| 95 if (channel_id_source_callback_) { | |
| 96 channel_id_source_callback_->Cancel(); | |
| 97 } | |
| 98 if (proof_verify_callback_) { | |
| 99 proof_verify_callback_->Cancel(); | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 void QuicCryptoClientStream::OnHandshakeMessage( | |
| 104 const CryptoHandshakeMessage& message) { | |
| 105 QuicCryptoStream::OnHandshakeMessage(message); | |
| 106 | |
| 107 if (message.tag() == kSCUP) { | |
| 108 if (!handshake_confirmed()) { | |
| 109 CloseConnection(QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE); | |
| 110 return; | |
| 111 } | |
| 112 | |
| 113 // |message| is an update from the server, so we treat it differently from a | |
| 114 // handshake message. | |
| 115 HandleServerConfigUpdateMessage(message); | |
| 116 return; | |
| 117 } | |
| 118 | |
| 119 // Do not process handshake messages after the handshake is confirmed. | |
| 120 if (handshake_confirmed()) { | |
| 121 CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE); | |
| 122 return; | |
| 123 } | |
| 124 | |
| 125 DoHandshakeLoop(&message); | |
| 126 } | |
| 127 | |
| 128 void QuicCryptoClientStream::CryptoConnect() { | |
| 129 next_state_ = STATE_INITIALIZE; | |
| 130 DoHandshakeLoop(nullptr); | |
| 131 } | |
| 132 | |
| 133 int QuicCryptoClientStream::num_sent_client_hellos() const { | |
| 134 return num_client_hellos_; | |
| 135 } | |
| 136 | |
| 137 bool QuicCryptoClientStream::WasChannelIDSent() const { | |
| 138 return channel_id_sent_; | |
| 139 } | |
| 140 | |
| 141 bool QuicCryptoClientStream::WasChannelIDSourceCallbackRun() const { | |
| 142 return channel_id_source_callback_run_; | |
| 143 } | |
| 144 | |
| 145 void QuicCryptoClientStream::HandleServerConfigUpdateMessage( | |
| 146 const CryptoHandshakeMessage& server_config_update) { | |
| 147 DCHECK(server_config_update.tag() == kSCUP); | |
| 148 string error_details; | |
| 149 QuicCryptoClientConfig::CachedState* cached = | |
| 150 crypto_config_->LookupOrCreate(server_id_); | |
| 151 QuicErrorCode error = crypto_config_->ProcessServerConfigUpdate( | |
| 152 server_config_update, | |
| 153 session()->connection()->clock()->WallNow(), | |
| 154 cached, | |
| 155 &crypto_negotiated_params_, | |
| 156 &error_details); | |
| 157 | |
| 158 if (error != QUIC_NO_ERROR) { | |
| 159 CloseConnectionWithDetails( | |
| 160 error, "Server config update invalid: " + error_details); | |
| 161 return; | |
| 162 } | |
| 163 | |
| 164 DCHECK(handshake_confirmed()); | |
| 165 if (proof_verify_callback_) { | |
| 166 proof_verify_callback_->Cancel(); | |
| 167 } | |
| 168 next_state_ = STATE_INITIALIZE_SCUP; | |
| 169 DoHandshakeLoop(nullptr); | |
| 170 } | |
| 171 | |
| 172 // kMaxClientHellos is the maximum number of times that we'll send a client | |
| 173 // hello. The value 3 accounts for: | |
| 174 // * One failure due to an incorrect or missing source-address token. | |
| 175 // * One failure due the server's certificate chain being unavailible and the | |
| 176 // server being unwilling to send it without a valid source-address token. | |
| 177 static const int kMaxClientHellos = 3; | |
| 178 | |
| 179 void QuicCryptoClientStream::DoHandshakeLoop( | |
| 180 const CryptoHandshakeMessage* in) { | |
| 181 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 182 tracked_objects::ScopedTracker tracking_profile( | |
| 183 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 184 "422516 QuicCryptoClientStream::DoHandshakeLoop")); | |
| 185 | |
| 186 QuicCryptoClientConfig::CachedState* cached = | |
| 187 crypto_config_->LookupOrCreate(server_id_); | |
| 188 | |
| 189 QuicAsyncStatus rv = QUIC_SUCCESS; | |
| 190 do { | |
| 191 CHECK_NE(STATE_NONE, next_state_); | |
| 192 const State state = next_state_; | |
| 193 next_state_ = STATE_IDLE; | |
| 194 rv = QUIC_SUCCESS; | |
| 195 switch (state) { | |
| 196 case STATE_INITIALIZE: | |
| 197 DoInitialize(cached); | |
| 198 break; | |
| 199 case STATE_SEND_CHLO: | |
| 200 DoSendCHLO(in, cached); | |
| 201 return; // return waiting to hear from server. | |
| 202 case STATE_RECV_REJ: | |
| 203 DoReceiveREJ(in, cached); | |
| 204 break; | |
| 205 case STATE_VERIFY_PROOF: | |
| 206 rv = DoVerifyProof(cached); | |
| 207 break; | |
| 208 case STATE_VERIFY_PROOF_COMPLETE: | |
| 209 DoVerifyProofComplete(cached); | |
| 210 break; | |
| 211 case STATE_GET_CHANNEL_ID: | |
| 212 rv = DoGetChannelID(cached); | |
| 213 break; | |
| 214 case STATE_GET_CHANNEL_ID_COMPLETE: | |
| 215 DoGetChannelIDComplete(); | |
| 216 break; | |
| 217 case STATE_RECV_SHLO: | |
| 218 DoReceiveSHLO(in, cached); | |
| 219 break; | |
| 220 case STATE_IDLE: | |
| 221 // This means that the peer sent us a message that we weren't expecting. | |
| 222 CloseConnection(QUIC_INVALID_CRYPTO_MESSAGE_TYPE); | |
| 223 return; | |
| 224 case STATE_INITIALIZE_SCUP: | |
| 225 DoInitializeServerConfigUpdate(cached); | |
| 226 break; | |
| 227 case STATE_NONE: | |
| 228 NOTREACHED(); | |
| 229 return; // We are done. | |
| 230 } | |
| 231 } while (rv != QUIC_PENDING && next_state_ != STATE_NONE); | |
| 232 } | |
| 233 | |
| 234 void QuicCryptoClientStream::DoInitialize( | |
| 235 QuicCryptoClientConfig::CachedState* cached) { | |
| 236 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 237 tracked_objects::ScopedTracker tracking_profile( | |
| 238 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 239 "422516 QuicCryptoClientStream::DoInitialize")); | |
| 240 | |
| 241 if (!cached->IsEmpty() && !cached->signature().empty() && | |
| 242 server_id_.is_https()) { | |
| 243 // Note that we verify the proof even if the cached proof is valid. | |
| 244 // This allows us to respond to CA trust changes or certificate | |
| 245 // expiration because it may have been a while since we last verified | |
| 246 // the proof. | |
| 247 DCHECK(crypto_config_->proof_verifier()); | |
| 248 // If the cached state needs to be verified, do it now. | |
| 249 next_state_ = STATE_VERIFY_PROOF; | |
| 250 } else { | |
| 251 next_state_ = STATE_GET_CHANNEL_ID; | |
| 252 } | |
| 253 } | |
| 254 | |
| 255 void QuicCryptoClientStream::DoSendCHLO( | |
| 256 const CryptoHandshakeMessage* in, | |
| 257 QuicCryptoClientConfig::CachedState* cached) { | |
| 258 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 259 tracked_objects::ScopedTracker tracking_profile1( | |
| 260 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 261 "422516 QuicCryptoClientStream::DoSendCHLO1")); | |
| 262 | |
| 263 // Send the client hello in plaintext. | |
| 264 session()->connection()->SetDefaultEncryptionLevel(ENCRYPTION_NONE); | |
| 265 if (num_client_hellos_ > kMaxClientHellos) { | |
| 266 CloseConnection(QUIC_CRYPTO_TOO_MANY_REJECTS); | |
| 267 return; | |
| 268 } | |
| 269 num_client_hellos_++; | |
| 270 | |
| 271 CryptoHandshakeMessage out; | |
| 272 if (!cached->IsComplete(session()->connection()->clock()->WallNow())) { | |
| 273 crypto_config_->FillInchoateClientHello( | |
| 274 server_id_, | |
| 275 session()->connection()->supported_versions().front(), | |
| 276 cached, &crypto_negotiated_params_, &out); | |
| 277 // Pad the inchoate client hello to fill up a packet. | |
| 278 const QuicByteCount kFramingOverhead = 50; // A rough estimate. | |
| 279 const QuicByteCount max_packet_size = | |
| 280 session()->connection()->max_packet_length(); | |
| 281 if (max_packet_size <= kFramingOverhead) { | |
| 282 DLOG(DFATAL) << "max_packet_length (" << max_packet_size | |
| 283 << ") has no room for framing overhead."; | |
| 284 CloseConnection(QUIC_INTERNAL_ERROR); | |
| 285 return; | |
| 286 } | |
| 287 if (kClientHelloMinimumSize > max_packet_size - kFramingOverhead) { | |
| 288 DLOG(DFATAL) << "Client hello won't fit in a single packet."; | |
| 289 CloseConnection(QUIC_INTERNAL_ERROR); | |
| 290 return; | |
| 291 } | |
| 292 out.set_minimum_size( | |
| 293 static_cast<size_t>(max_packet_size - kFramingOverhead)); | |
| 294 next_state_ = STATE_RECV_REJ; | |
| 295 SendHandshakeMessage(out); | |
| 296 return; | |
| 297 } | |
| 298 | |
| 299 session()->config()->ToHandshakeMessage(&out); | |
| 300 string error_details; | |
| 301 QuicErrorCode error = crypto_config_->FillClientHello( | |
| 302 server_id_, | |
| 303 session()->connection()->connection_id(), | |
| 304 session()->connection()->supported_versions().front(), | |
| 305 cached, | |
| 306 session()->connection()->clock()->WallNow(), | |
| 307 session()->connection()->random_generator(), | |
| 308 channel_id_key_.get(), | |
| 309 &crypto_negotiated_params_, | |
| 310 &out, | |
| 311 &error_details); | |
| 312 | |
| 313 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 314 tracked_objects::ScopedTracker tracking_profile2( | |
| 315 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 316 "422516 QuicCryptoClientStream::DoSendCHLO2")); | |
| 317 | |
| 318 if (error != QUIC_NO_ERROR) { | |
| 319 // Flush the cached config so that, if it's bad, the server has a | |
| 320 // chance to send us another in the future. | |
| 321 cached->InvalidateServerConfig(); | |
| 322 CloseConnectionWithDetails(error, error_details); | |
| 323 return; | |
| 324 } | |
| 325 channel_id_sent_ = (channel_id_key_.get() != nullptr); | |
| 326 if (cached->proof_verify_details()) { | |
| 327 client_session()->OnProofVerifyDetailsAvailable( | |
| 328 *cached->proof_verify_details()); | |
| 329 } | |
| 330 next_state_ = STATE_RECV_SHLO; | |
| 331 SendHandshakeMessage(out); | |
| 332 // Be prepared to decrypt with the new server write key. | |
| 333 session()->connection()->SetAlternativeDecrypter( | |
| 334 crypto_negotiated_params_.initial_crypters.decrypter.release(), | |
| 335 ENCRYPTION_INITIAL, | |
| 336 true /* latch once used */); | |
| 337 // Send subsequent packets under encryption on the assumption that the | |
| 338 // server will accept the handshake. | |
| 339 session()->connection()->SetEncrypter( | |
| 340 ENCRYPTION_INITIAL, | |
| 341 crypto_negotiated_params_.initial_crypters.encrypter.release()); | |
| 342 session()->connection()->SetDefaultEncryptionLevel( | |
| 343 ENCRYPTION_INITIAL); | |
| 344 if (!encryption_established_) { | |
| 345 encryption_established_ = true; | |
| 346 session()->OnCryptoHandshakeEvent( | |
| 347 QuicSession::ENCRYPTION_FIRST_ESTABLISHED); | |
| 348 } else { | |
| 349 session()->OnCryptoHandshakeEvent( | |
| 350 QuicSession::ENCRYPTION_REESTABLISHED); | |
| 351 } | |
| 352 } | |
| 353 | |
| 354 void QuicCryptoClientStream::DoReceiveREJ( | |
| 355 const CryptoHandshakeMessage* in, | |
| 356 QuicCryptoClientConfig::CachedState* cached) { | |
| 357 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 358 tracked_objects::ScopedTracker tracking_profile( | |
| 359 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 360 "422516 QuicCryptoClientStream::DoReceiveREJ")); | |
| 361 | |
| 362 // We sent a dummy CHLO because we didn't have enough information to | |
| 363 // perform a handshake, or we sent a full hello that the server | |
| 364 // rejected. Here we hope to have a REJ that contains the information | |
| 365 // that we need. | |
| 366 if (in->tag() != kREJ) { | |
| 367 next_state_ = STATE_NONE; | |
| 368 CloseConnectionWithDetails(QUIC_INVALID_CRYPTO_MESSAGE_TYPE, | |
| 369 "Expected REJ"); | |
| 370 return; | |
| 371 } | |
| 372 string error_details; | |
| 373 QuicErrorCode error = crypto_config_->ProcessRejection( | |
| 374 *in, session()->connection()->clock()->WallNow(), cached, | |
| 375 server_id_.is_https(), &crypto_negotiated_params_, &error_details); | |
| 376 if (error != QUIC_NO_ERROR) { | |
| 377 next_state_ = STATE_NONE; | |
| 378 CloseConnectionWithDetails(error, error_details); | |
| 379 return; | |
| 380 } | |
| 381 if (!cached->proof_valid()) { | |
| 382 if (!server_id_.is_https()) { | |
| 383 // We don't check the certificates for insecure QUIC connections. | |
| 384 SetCachedProofValid(cached); | |
| 385 } else if (!cached->signature().empty()) { | |
| 386 // Note that we only verify the proof if the cached proof is not | |
| 387 // valid. If the cached proof is valid here, someone else must have | |
| 388 // just added the server config to the cache and verified the proof, | |
| 389 // so we can assume no CA trust changes or certificate expiration | |
| 390 // has happened since then. | |
| 391 next_state_ = STATE_VERIFY_PROOF; | |
| 392 return; | |
| 393 } | |
| 394 } | |
| 395 next_state_ = STATE_GET_CHANNEL_ID; | |
| 396 } | |
| 397 | |
| 398 QuicAsyncStatus QuicCryptoClientStream::DoVerifyProof( | |
| 399 QuicCryptoClientConfig::CachedState* cached) { | |
| 400 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 401 tracked_objects::ScopedTracker tracking_profile( | |
| 402 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 403 "422516 QuicCryptoClientStream::DoVerifyProof")); | |
| 404 | |
| 405 ProofVerifier* verifier = crypto_config_->proof_verifier(); | |
| 406 DCHECK(verifier); | |
| 407 next_state_ = STATE_VERIFY_PROOF_COMPLETE; | |
| 408 generation_counter_ = cached->generation_counter(); | |
| 409 | |
| 410 ProofVerifierCallbackImpl* proof_verify_callback = | |
| 411 new ProofVerifierCallbackImpl(this); | |
| 412 | |
| 413 verify_ok_ = false; | |
| 414 | |
| 415 QuicAsyncStatus status = verifier->VerifyProof( | |
| 416 server_id_.host(), | |
| 417 cached->server_config(), | |
| 418 cached->certs(), | |
| 419 cached->signature(), | |
| 420 verify_context_.get(), | |
| 421 &verify_error_details_, | |
| 422 &verify_details_, | |
| 423 proof_verify_callback); | |
| 424 | |
| 425 switch (status) { | |
| 426 case QUIC_PENDING: | |
| 427 proof_verify_callback_ = proof_verify_callback; | |
| 428 DVLOG(1) << "Doing VerifyProof"; | |
| 429 break; | |
| 430 case QUIC_FAILURE: | |
| 431 delete proof_verify_callback; | |
| 432 break; | |
| 433 case QUIC_SUCCESS: | |
| 434 delete proof_verify_callback; | |
| 435 verify_ok_ = true; | |
| 436 break; | |
| 437 } | |
| 438 return status; | |
| 439 } | |
| 440 | |
| 441 void QuicCryptoClientStream::DoVerifyProofComplete( | |
| 442 QuicCryptoClientConfig::CachedState* cached) { | |
| 443 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 444 tracked_objects::ScopedTracker tracking_profile( | |
| 445 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 446 "422516 QuicCryptoClientStream::DoVerifyProofComplete")); | |
| 447 | |
| 448 if (!verify_ok_) { | |
| 449 next_state_ = STATE_NONE; | |
| 450 if (verify_details_.get()) { | |
| 451 client_session()->OnProofVerifyDetailsAvailable(*verify_details_); | |
| 452 } | |
| 453 UMA_HISTOGRAM_BOOLEAN("Net.QuicVerifyProofFailed.HandshakeConfirmed", | |
| 454 handshake_confirmed()); | |
| 455 CloseConnectionWithDetails( | |
| 456 QUIC_PROOF_INVALID, "Proof invalid: " + verify_error_details_); | |
| 457 return; | |
| 458 } | |
| 459 | |
| 460 // Check if generation_counter has changed between STATE_VERIFY_PROOF and | |
| 461 // STATE_VERIFY_PROOF_COMPLETE state changes. | |
| 462 if (generation_counter_ != cached->generation_counter()) { | |
| 463 next_state_ = STATE_VERIFY_PROOF; | |
| 464 } else { | |
| 465 SetCachedProofValid(cached); | |
| 466 cached->SetProofVerifyDetails(verify_details_.release()); | |
| 467 if (!handshake_confirmed()) { | |
| 468 next_state_ = STATE_GET_CHANNEL_ID; | |
| 469 } else { | |
| 470 next_state_ = STATE_NONE; | |
| 471 } | |
| 472 } | |
| 473 } | |
| 474 | |
| 475 QuicAsyncStatus QuicCryptoClientStream::DoGetChannelID( | |
| 476 QuicCryptoClientConfig::CachedState* cached) { | |
| 477 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 478 tracked_objects::ScopedTracker tracking_profile( | |
| 479 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 480 "422516 QuicCryptoClientStream::DoGetChannelID")); | |
| 481 | |
| 482 next_state_ = STATE_GET_CHANNEL_ID_COMPLETE; | |
| 483 channel_id_key_.reset(); | |
| 484 if (!RequiresChannelID(cached)) { | |
| 485 next_state_ = STATE_SEND_CHLO; | |
| 486 return QUIC_SUCCESS; | |
| 487 } | |
| 488 | |
| 489 ChannelIDSourceCallbackImpl* channel_id_source_callback = | |
| 490 new ChannelIDSourceCallbackImpl(this); | |
| 491 QuicAsyncStatus status = | |
| 492 crypto_config_->channel_id_source()->GetChannelIDKey( | |
| 493 server_id_.host(), &channel_id_key_, | |
| 494 channel_id_source_callback); | |
| 495 | |
| 496 switch (status) { | |
| 497 case QUIC_PENDING: | |
| 498 channel_id_source_callback_ = channel_id_source_callback; | |
| 499 DVLOG(1) << "Looking up channel ID"; | |
| 500 break; | |
| 501 case QUIC_FAILURE: | |
| 502 next_state_ = STATE_NONE; | |
| 503 delete channel_id_source_callback; | |
| 504 CloseConnectionWithDetails(QUIC_INVALID_CHANNEL_ID_SIGNATURE, | |
| 505 "Channel ID lookup failed"); | |
| 506 break; | |
| 507 case QUIC_SUCCESS: | |
| 508 delete channel_id_source_callback; | |
| 509 break; | |
| 510 } | |
| 511 return status; | |
| 512 } | |
| 513 | |
| 514 void QuicCryptoClientStream::DoGetChannelIDComplete() { | |
| 515 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 516 tracked_objects::ScopedTracker tracking_profile( | |
| 517 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 518 "422516 QuicCryptoClientStream::DoGetChannelIDComplete")); | |
| 519 | |
| 520 if (!channel_id_key_.get()) { | |
| 521 next_state_ = STATE_NONE; | |
| 522 CloseConnectionWithDetails(QUIC_INVALID_CHANNEL_ID_SIGNATURE, | |
| 523 "Channel ID lookup failed"); | |
| 524 return; | |
| 525 } | |
| 526 next_state_ = STATE_SEND_CHLO; | |
| 527 } | |
| 528 | |
| 529 void QuicCryptoClientStream::DoReceiveSHLO( | |
| 530 const CryptoHandshakeMessage* in, | |
| 531 QuicCryptoClientConfig::CachedState* cached) { | |
| 532 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 533 tracked_objects::ScopedTracker tracking_profile( | |
| 534 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 535 "422516 QuicCryptoClientStream::DoReceiveSHLO")); | |
| 536 | |
| 537 next_state_ = STATE_NONE; | |
| 538 // We sent a CHLO that we expected to be accepted and now we're hoping | |
| 539 // for a SHLO from the server to confirm that. | |
| 540 if (in->tag() == kREJ) { | |
| 541 // alternative_decrypter will be nullptr if the original alternative | |
| 542 // decrypter latched and became the primary decrypter. That happens | |
| 543 // if we received a message encrypted with the INITIAL key. | |
| 544 if (session()->connection()->alternative_decrypter() == nullptr) { | |
| 545 // The rejection was sent encrypted! | |
| 546 CloseConnectionWithDetails(QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT, | |
| 547 "encrypted REJ message"); | |
| 548 return; | |
| 549 } | |
| 550 next_state_ = STATE_RECV_REJ; | |
| 551 return; | |
| 552 } | |
| 553 | |
| 554 if (in->tag() != kSHLO) { | |
| 555 CloseConnectionWithDetails(QUIC_INVALID_CRYPTO_MESSAGE_TYPE, | |
| 556 "Expected SHLO or REJ"); | |
| 557 return; | |
| 558 } | |
| 559 | |
| 560 // alternative_decrypter will be nullptr if the original alternative | |
| 561 // decrypter latched and became the primary decrypter. That happens | |
| 562 // if we received a message encrypted with the INITIAL key. | |
| 563 if (session()->connection()->alternative_decrypter() != nullptr) { | |
| 564 // The server hello was sent without encryption. | |
| 565 CloseConnectionWithDetails(QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT, | |
| 566 "unencrypted SHLO message"); | |
| 567 return; | |
| 568 } | |
| 569 | |
| 570 string error_details; | |
| 571 QuicErrorCode error = crypto_config_->ProcessServerHello( | |
| 572 *in, session()->connection()->connection_id(), | |
| 573 session()->connection()->server_supported_versions(), | |
| 574 cached, &crypto_negotiated_params_, &error_details); | |
| 575 | |
| 576 if (error != QUIC_NO_ERROR) { | |
| 577 CloseConnectionWithDetails(error, "Server hello invalid: " + error_details); | |
| 578 return; | |
| 579 } | |
| 580 error = session()->config()->ProcessPeerHello(*in, SERVER, &error_details); | |
| 581 if (error != QUIC_NO_ERROR) { | |
| 582 CloseConnectionWithDetails(error, "Server hello invalid: " + error_details); | |
| 583 return; | |
| 584 } | |
| 585 session()->OnConfigNegotiated(); | |
| 586 | |
| 587 CrypterPair* crypters = &crypto_negotiated_params_.forward_secure_crypters; | |
| 588 // TODO(agl): we don't currently latch this decrypter because the idea | |
| 589 // has been floated that the server shouldn't send packets encrypted | |
| 590 // with the FORWARD_SECURE key until it receives a FORWARD_SECURE | |
| 591 // packet from the client. | |
| 592 session()->connection()->SetAlternativeDecrypter( | |
| 593 crypters->decrypter.release(), ENCRYPTION_FORWARD_SECURE, | |
| 594 false /* don't latch */); | |
| 595 session()->connection()->SetEncrypter( | |
| 596 ENCRYPTION_FORWARD_SECURE, crypters->encrypter.release()); | |
| 597 session()->connection()->SetDefaultEncryptionLevel( | |
| 598 ENCRYPTION_FORWARD_SECURE); | |
| 599 | |
| 600 handshake_confirmed_ = true; | |
| 601 session()->OnCryptoHandshakeEvent(QuicSession::HANDSHAKE_CONFIRMED); | |
| 602 session()->connection()->OnHandshakeComplete(); | |
| 603 } | |
| 604 | |
| 605 void QuicCryptoClientStream::DoInitializeServerConfigUpdate( | |
| 606 QuicCryptoClientConfig::CachedState* cached) { | |
| 607 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 608 tracked_objects::ScopedTracker tracking_profile( | |
| 609 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 610 "422516 QuicCryptoClientStream::DoInitializeServerConfigUpdate")); | |
| 611 | |
| 612 bool update_ignored = false; | |
| 613 if (!server_id_.is_https()) { | |
| 614 // We don't check the certificates for insecure QUIC connections. | |
| 615 SetCachedProofValid(cached); | |
| 616 next_state_ = STATE_NONE; | |
| 617 } else if (!cached->IsEmpty() && !cached->signature().empty()) { | |
| 618 // Note that we verify the proof even if the cached proof is valid. | |
| 619 DCHECK(crypto_config_->proof_verifier()); | |
| 620 next_state_ = STATE_VERIFY_PROOF; | |
| 621 } else { | |
| 622 update_ignored = true; | |
| 623 next_state_ = STATE_NONE; | |
| 624 } | |
| 625 UMA_HISTOGRAM_COUNTS("Net.QuicNumServerConfig.UpdateMessagesIgnored", | |
| 626 update_ignored); | |
| 627 } | |
| 628 | |
| 629 void QuicCryptoClientStream::SetCachedProofValid( | |
| 630 QuicCryptoClientConfig::CachedState* cached) { | |
| 631 cached->SetProofValid(); | |
| 632 client_session()->OnProofValid(*cached); | |
| 633 } | |
| 634 | |
| 635 bool QuicCryptoClientStream::RequiresChannelID( | |
| 636 QuicCryptoClientConfig::CachedState* cached) { | |
| 637 if (!server_id_.is_https() || | |
| 638 server_id_.privacy_mode() == PRIVACY_MODE_ENABLED || | |
| 639 !crypto_config_->channel_id_source()) { | |
| 640 return false; | |
| 641 } | |
| 642 const CryptoHandshakeMessage* scfg = cached->GetServerConfig(); | |
| 643 if (!scfg) { // scfg may be null then we send an inchoate CHLO. | |
| 644 return false; | |
| 645 } | |
| 646 const QuicTag* their_proof_demands; | |
| 647 size_t num_their_proof_demands; | |
| 648 if (scfg->GetTaglist(kPDMD, &their_proof_demands, | |
| 649 &num_their_proof_demands) != QUIC_NO_ERROR) { | |
| 650 return false; | |
| 651 } | |
| 652 for (size_t i = 0; i < num_their_proof_demands; i++) { | |
| 653 if (their_proof_demands[i] == kCHID) { | |
| 654 return true; | |
| 655 } | |
| 656 } | |
| 657 return false; | |
| 658 } | |
| 659 | |
| 660 QuicClientSessionBase* QuicCryptoClientStream::client_session() { | |
| 661 return reinterpret_cast<QuicClientSessionBase*>(session()); | |
| 662 } | |
| 663 | |
| 664 } // namespace net | |
| OLD | NEW |
|---|
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Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master