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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "net/quic/core/quic_connection.h" | 5 #include "net/quic/core/quic_connection.h" |
| 6 | 6 |
| 7 #include <string.h> | 7 #include <string.h> |
| 8 #include <sys/types.h> | 8 #include <sys/types.h> |
| 9 | 9 |
| 10 #include <algorithm> | 10 #include <algorithm> |
| 11 #include <iterator> | 11 #include <iterator> |
| 12 #include <limits> | 12 #include <limits> |
| 13 #include <memory> | 13 #include <memory> |
| 14 #include <set> | 14 #include <set> |
| 15 #include <utility> | 15 #include <utility> |
| 16 | 16 |
| 17 #include "base/format_macros.h" | 17 #include "base/format_macros.h" |
| 18 #include "base/macros.h" | 18 #include "base/macros.h" |
| 19 #include "base/metrics/histogram_macros.h" | 19 #include "base/metrics/histogram_macros.h" |
| 20 #include "base/stl_util.h" | |
| 21 #include "net/base/address_family.h" | 20 #include "net/base/address_family.h" |
| 22 #include "net/base/ip_address.h" | 21 #include "net/base/ip_address.h" |
| 23 #include "net/base/net_errors.h" | 22 #include "net/base/net_errors.h" |
| 24 #include "net/quic/core/crypto/crypto_protocol.h" | 23 #include "net/quic/core/crypto/crypto_protocol.h" |
| 25 #include "net/quic/core/crypto/quic_decrypter.h" | 24 #include "net/quic/core/crypto/quic_decrypter.h" |
| 26 #include "net/quic/core/crypto/quic_encrypter.h" | 25 #include "net/quic/core/crypto/quic_encrypter.h" |
| 27 #include "net/quic/core/proto/cached_network_parameters.pb.h" | 26 #include "net/quic/core/proto/cached_network_parameters.pb.h" |
| 28 #include "net/quic/core/quic_bandwidth.h" | 27 #include "net/quic/core/quic_bandwidth.h" |
| 29 #include "net/quic/core/quic_config.h" | 28 #include "net/quic/core/quic_config.h" |
| 30 #include "net/quic/core/quic_flags.h" | 29 #include "net/quic/core/quic_flags.h" |
| 31 #include "net/quic/core/quic_packet_generator.h" | 30 #include "net/quic/core/quic_packet_generator.h" |
| 32 #include "net/quic/core/quic_pending_retransmission.h" | 31 #include "net/quic/core/quic_pending_retransmission.h" |
| 33 #include "net/quic/core/quic_utils.h" | 32 #include "net/quic/core/quic_utils.h" |
| 34 #include "net/quic/platform/api/quic_bug_tracker.h" | 33 #include "net/quic/platform/api/quic_bug_tracker.h" |
| 35 #include "net/quic/platform/api/quic_logging.h" | 34 #include "net/quic/platform/api/quic_logging.h" |
| 35 #include "net/quic/platform/api/quic_map_util.h" |
| 36 #include "net/quic/platform/api/quic_str_cat.h" | 36 #include "net/quic/platform/api/quic_str_cat.h" |
| 37 #include "net/quic/platform/api/quic_text_utils.h" | 37 #include "net/quic/platform/api/quic_text_utils.h" |
| 38 | 38 |
| 39 using base::StringPiece; | 39 using base::StringPiece; |
| 40 using std::string; | 40 using std::string; |
| 41 | 41 |
| 42 namespace net { | 42 namespace net { |
| 43 | 43 |
| 44 class QuicDecrypter; | 44 class QuicDecrypter; |
| 45 class QuicEncrypter; | 45 class QuicEncrypter; |
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| 386 } | 386 } |
| 387 | 387 |
| 388 bool QuicConnection::SelectMutualVersion( | 388 bool QuicConnection::SelectMutualVersion( |
| 389 const QuicVersionVector& available_versions) { | 389 const QuicVersionVector& available_versions) { |
| 390 // Try to find the highest mutual version by iterating over supported | 390 // Try to find the highest mutual version by iterating over supported |
| 391 // versions, starting with the highest, and breaking out of the loop once we | 391 // versions, starting with the highest, and breaking out of the loop once we |
| 392 // find a matching version in the provided available_versions vector. | 392 // find a matching version in the provided available_versions vector. |
| 393 const QuicVersionVector& supported_versions = framer_.supported_versions(); | 393 const QuicVersionVector& supported_versions = framer_.supported_versions(); |
| 394 for (size_t i = 0; i < supported_versions.size(); ++i) { | 394 for (size_t i = 0; i < supported_versions.size(); ++i) { |
| 395 const QuicVersion& version = supported_versions[i]; | 395 const QuicVersion& version = supported_versions[i]; |
| 396 if (base::ContainsValue(available_versions, version)) { | 396 if (QuicContainsValue(available_versions, version)) { |
| 397 framer_.set_version(version); | 397 framer_.set_version(version); |
| 398 return true; | 398 return true; |
| 399 } | 399 } |
| 400 } | 400 } |
| 401 | 401 |
| 402 return false; | 402 return false; |
| 403 } | 403 } |
| 404 | 404 |
| 405 void QuicConnection::OnError(QuicFramer* framer) { | 405 void QuicConnection::OnError(QuicFramer* framer) { |
| 406 // Packets that we can not or have not decrypted are dropped. | 406 // Packets that we can not or have not decrypted are dropped. |
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| 504 } | 504 } |
| 505 if (debug_visitor_ != nullptr) { | 505 if (debug_visitor_ != nullptr) { |
| 506 debug_visitor_->OnVersionNegotiationPacket(packet); | 506 debug_visitor_->OnVersionNegotiationPacket(packet); |
| 507 } | 507 } |
| 508 | 508 |
| 509 if (version_negotiation_state_ != START_NEGOTIATION) { | 509 if (version_negotiation_state_ != START_NEGOTIATION) { |
| 510 // Possibly a duplicate version negotiation packet. | 510 // Possibly a duplicate version negotiation packet. |
| 511 return; | 511 return; |
| 512 } | 512 } |
| 513 | 513 |
| 514 if (base::ContainsValue(packet.versions, version())) { | 514 if (QuicContainsValue(packet.versions, version())) { |
| 515 const string error_details = | 515 const string error_details = |
| 516 "Server already supports client's version and should have accepted the " | 516 "Server already supports client's version and should have accepted the " |
| 517 "connection."; | 517 "connection."; |
| 518 QUIC_DLOG(WARNING) << error_details; | 518 QUIC_DLOG(WARNING) << error_details; |
| 519 TearDownLocalConnectionState(QUIC_INVALID_VERSION_NEGOTIATION_PACKET, | 519 TearDownLocalConnectionState(QUIC_INVALID_VERSION_NEGOTIATION_PACKET, |
| 520 error_details, | 520 error_details, |
| 521 ConnectionCloseSource::FROM_SELF); | 521 ConnectionCloseSource::FROM_SELF); |
| 522 return; | 522 return; |
| 523 } | 523 } |
| 524 | 524 |
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| 2446 | 2446 |
| 2447 void QuicConnection::CheckIfApplicationLimited() { | 2447 void QuicConnection::CheckIfApplicationLimited() { |
| 2448 if (queued_packets_.empty() && | 2448 if (queued_packets_.empty() && |
| 2449 !sent_packet_manager_.HasPendingRetransmissions() && | 2449 !sent_packet_manager_.HasPendingRetransmissions() && |
| 2450 !visitor_->WillingAndAbleToWrite()) { | 2450 !visitor_->WillingAndAbleToWrite()) { |
| 2451 sent_packet_manager_.OnApplicationLimited(); | 2451 sent_packet_manager_.OnApplicationLimited(); |
| 2452 } | 2452 } |
| 2453 } | 2453 } |
| 2454 | 2454 |
| 2455 } // namespace net | 2455 } // namespace net |
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