quic_protocol.h revision b2df76ea8fec9e32f6f3718986dba0d95315b29c
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef NET_QUIC_QUIC_PROTOCOL_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define NET_QUIC_QUIC_PROTOCOL_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <stddef.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <limits> 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <map> 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <ostream> 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <set> 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <string> 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <utility> 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <vector> 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/hash_tables.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/strings/string_piece.h" 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/int128.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_export.h" 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/quic/quic_bandwidth.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/quic/quic_time.h" 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)using ::operator<<; 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class QuicPacket; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicGuid; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32 QuicStreamId; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicStreamOffset; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicPacketSequenceNumber; 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketSequenceNumber QuicFecGroupNumber; 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint64 QuicPublicResetNonceProof; 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint8 QuicPacketEntropyHash; 39b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicHeaderId; 40b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// QuicTag is the type of a tag in the wire protocol. 41b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicTag; 42b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef std::vector<QuicTag> QuicTagVector; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): Consider Quic specific names for these constants. 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Maximum size in bytes of a QUIC packet. 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const QuicByteCount kMaxPacketSize = 1200; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Maximum number of open streams per connection. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const size_t kDefaultMaxStreamsPerConnection = 100; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for guid in the packet header. 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kQuicGuidSize = 8; 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for public flags in the packet header. 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicFlagsSize = 1; 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for version number in the packet header. 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kQuicVersionSize = 4; 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for sequence number in the packet header. 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kSequenceNumberSize = 6; 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for private flags in the packet header. 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPrivateFlagsSize = 1; 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for FEC group in the packet header. 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kFecGroupSize = 1; 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for the nonce proof in public reset packet. 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicResetNonceSize = 8; 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Signifies that the QuicPacket will contain version of the protocol. 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const bool kIncludeVersion = true; 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Size in bytes of the data or fec packet header. 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(bool include_version); 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Size in bytes of the public reset packet. 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPublicResetPacketSize(); 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Index of the first byte in a QUIC packet of FEC protected data. 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfFecProtectedData(bool include_version); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Index of the first byte in a QUIC packet of encrypted data. 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfEncryptedData(bool include_version); 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Returns true if |version| is a supported protocol version. 79b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)NET_EXPORT_PRIVATE bool IsSupportedVersion(QuicTag version); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Index of the first byte in a QUIC packet which is used in hash calculation. 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kStartOfHashData = 0; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Limit on the delta between stream IDs. 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kMaxStreamIdDelta = 100; 86b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// Limit on the delta between header IDs. 87b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicHeaderId kMaxHeaderIdDelta = 100; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Reserved ID for the crypto stream. 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): ensure that this is not usable by any other streams. 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kCryptoStreamId = 1; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Value which indicates this packet is not FEC protected. 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const uint8 kNoFecOffset = 0xFF; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int64 kDefaultTimeoutUs = 600000000; // 10 minutes. 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum Retransmission { 99b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NOT_RETRANSMISSION, 100b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) IS_RETRANSMISSION, 101c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 102c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 103c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum HasRetransmittableData { 104b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NO_RETRANSMITTABLE_DATA, 105b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) HAS_RETRANSMITTABLE_DATA, 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum QuicFrameType { 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PADDING_FRAME = 0, 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) STREAM_FRAME, 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ACK_FRAME, 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CONGESTION_FEEDBACK_FRAME, 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RST_STREAM_FRAME, 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CONNECTION_CLOSE_FRAME, 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GOAWAY_FRAME, 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NUM_FRAME_TYPES 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPublicFlags { 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_NONE = 0, 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_VERSION = 1 << 0, // Packet header contains version info. 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_RST = 1 << 1, // Packet is a public reset packet. 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_MAX = (1 << 2) - 1 // All bits set. 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPrivateFlags { 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_NONE = 0, 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_FEC = 1 << 0, // Payload is FEC as opposed to frames. 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_ENTROPY = 1 << 1, 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_FEC_ENTROPY = 1 << 2, 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_MAX = (1 << 3) - 1 // All bits set. 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 134c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicRstStreamErrorCode { 135c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_NO_ERROR = 0, 1362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was some server error which halted stream processing. 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_SERVER_ERROR_PROCESSING_STREAM, 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got two fin or reset offsets which did not match. 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_MULTIPLE_TERMINATION_OFFSETS, 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got bad payload and can not respond to it at the protocol level. 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_BAD_APPLICATION_PAYLOAD, 143c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Stream closed due to connection error. No reset frame is sent when this 144c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // happens. 145c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_CONNECTION_ERROR, 146c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // GoAway frame sent. No more stream can be created. 147c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_PEER_GOING_AWAY, 148c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 149c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 150c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_LAST_ERROR, 151c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 153c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicErrorCode { 154c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_NO_ERROR = 0, 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 156c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Connection has reached an invalid state. 157c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_INTERNAL_ERROR, 158c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There were data frames after the a fin or reset. 159c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_DATA_AFTER_TERMINATION, 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Control frame is malformed. 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_PACKET_HEADER, 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Frame data is malformed. 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_FRAME_DATA, 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FEC data is malformed. 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_FEC_DATA, 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stream rst data is malformed 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_RST_STREAM_DATA, 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Connection close data is malformed. 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_CONNECTION_CLOSE_DATA, 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // GoAway data is malformed. 1712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_GOAWAY_DATA, 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ack data is malformed. 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_ACK_DATA, 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Version negotiation packet is malformed. 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_VERSION_NEGOTIATION_PACKET, 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error decrypting. 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_DECRYPTION_FAILURE, 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error encrypting. 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_ENCRYPTION_FAILURE, 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The packet exceeded kMaxPacketSize. 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_PACKET_TOO_LARGE, 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Data was sent for a stream which did not exist. 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_PACKET_FOR_NONEXISTENT_STREAM, 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The peer is going away. May be a client or server. 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_PEER_GOING_AWAY, 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A stream ID was invalid. 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_STREAM_ID, 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Too many streams already open. 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_TOO_MANY_OPEN_STREAMS, 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Received public reset for this connection. 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_PUBLIC_RESET, 192b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Invalid protocol version. 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_VERSION, 194b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Stream reset before headers decompressed. 195b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED, 196b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The Header ID for a stream was too far from the previous. 197b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_INVALID_HEADER_ID, 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We hit our prenegotiated (or default) timeout 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CONNECTION_TIMED_OUT, 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Crypto errors. 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained out of order tags. 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_TAGS_OUT_OF_ORDER, 2062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Handshake message contained too many entries. 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_ENTRIES, 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained an invalid value length. 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_INVALID_VALUE_LENGTH, 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A crypto message was received after the handshake was complete. 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, 2122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal message tag. 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_TYPE, 2142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal parameter. 2152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER, 2162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a mandatory parameter missing. 2172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND, 2182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a parameter that has no overlap 2192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // with the local parameter. 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP, 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received that contained a parameter with too few 2222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // values. 2232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND, 224c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // An internal error occured in crypto processing. 225c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_INTERNAL_ERROR, 226c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto handshake message specified an unsupported version. 227c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_VERSION_NOT_SUPPORTED, 228c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There was no intersection between the crypto primitives supported by the 229c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // peer and ourselves. 230c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_NO_SUPPORT, 231c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The server rejected our client hello messages too many times. 232c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_TOO_MANY_REJECTS, 233c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The client rejected the server's certificate chain or signature. 234c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_PROOF_INVALID, 235c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto message was received with a duplicate tag. 236c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_DUPLICATE_TAG, 237b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // A crypto message was received with the wrong encryption level (i.e. it 238b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // should have been encrypted but was not.) 239b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT, 240b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The server config for a server has expired. 241b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_CRYPTO_SERVER_CONFIG_EXPIRED, 242c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 243c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 244c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_LAST_ERROR, 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Version and Crypto tags are written to the wire with a big-endian 2482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// representation of the name of the tag. For example 2492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// the client hello tag (CHLO) will be written as the 2502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// following 4 bytes: 'C' 'H' 'L' 'O'. Since it is 2512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// stored in memory as a little endian uint32, we need 2522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// to reverse the order of the bytes. 253c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// 254c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// The TAG macro is used in header files to ensure that we don't create static 255c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// initialisers. In normal code, the MakeQuicTag function should be used. 256c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#define TAG(a, b, c, d) ((d << 24) + (c << 16) + (b << 8) + a) 257b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicTag kUnsupportedVersion = -1; 258b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// Each time the wire format changes, this need needs to be incremented. 259b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// At some point, we will actually freeze the wire format and make an official 260b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// version number, but this works for now. 261b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicTag kQuicVersion1 = TAG('Q', '0', '0', '1'); 262c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#undef TAG 263c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 264c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// MakeQuicTag returns a value given the four bytes. For example: 265c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// MakeQuicTag('C', 'H', 'L', 'O'); 266c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)uint32 NET_EXPORT_PRIVATE MakeQuicTag(char a, char b, char c, char d); 2672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketPublicHeader { 2692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader(); 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPacketPublicHeader(const QuicPacketPublicHeader& other); 2712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicPacketPublicHeader(); 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader& operator=(const QuicPacketPublicHeader& other); 2742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Universal header. All QuicPacket headers will have a guid and public flags. 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicGuid guid; 2772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool reset_flag; 2782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool version_flag; 279b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QuicTagVector versions; 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Header for Data or FEC packets. 283c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketHeader { 284c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicPacketHeader(); 285c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) explicit QuicPacketHeader(const QuicPacketPublicHeader& header); 2862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 2882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicPacketHeader& s); 2892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 2912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fec_flag; 2922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fec_entropy_flag; 2932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool entropy_flag; 2942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber packet_sequence_number; 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 299c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPublicResetPacket { 3002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetPacket() {} 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPublicResetPacket(const QuicPacketPublicHeader& header) 3022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public_header(header) {} 3032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 3042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber rejected_sequence_number; 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetNonceProof nonce_proof; 3062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 3072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicVersionNegotiationState { 3092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) START_NEGOTIATION = 0, 3102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SENT_NEGOTIATION_PACKET, 3112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NEGOTIATED_VERSION 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketPublicHeader QuicVersionNegotiationPacket; 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A padding frame contains no payload. 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPaddingFrame { 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicStreamFrame { 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(); 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(QuicStreamId stream_id, 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin, 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset, 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data); 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin; 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset; // Location of this data in the stream. 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data; 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(ianswett): Re-evaluate the trade-offs of hash_set vs set when framing 3342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// is finalized. 3352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::set<QuicPacketSequenceNumber> SequenceNumberSet; 3362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(pwestin): Add a way to enforce the max size of this map. 3372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::map<QuicPacketSequenceNumber, QuicTime> TimeMap; 3382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE ReceivedPacketInfo { 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReceivedPacketInfo(); 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~ReceivedPacketInfo(); 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const ReceivedPacketInfo& s); 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to largest observed not including missing 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packets. 3472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 3482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The highest packet sequence number we've observed from the peer. 3502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // 3512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // In general, this should be the largest packet number we've received. In 3522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the case of truncated acks, we may have to advertise a lower "upper bound" 3532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // than largest received, to avoid implicitly acking missing packets that 3542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // don't fit in the missing packet list due to size limitations. In this 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // case, largest_observed may be a packet which is also in the missing packets 3562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // list. 3572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber largest_observed; 3582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Time elapsed since largest_observed was received until this Ack frame was 3602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // sent. 3612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime::Delta delta_time_largest_observed; 3622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(satyamshekhar): Can be optimized using an interval set like data 3642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // structure. 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The set of packets which we're expecting and have not received. 3662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SequenceNumberSet missing_packets; 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// True if the sequence number is greater than largest_observed or is listed 3702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// as missing. 3712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Always returns false for sequence numbers less than least_unacked. 3722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool NET_EXPORT_PRIVATE IsAwaitingPacket( 3732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ReceivedPacketInfo& received_info, 3742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number); 3752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Inserts missing packets between [lower, higher). 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NET_EXPORT_PRIVATE InsertMissingPacketsBetween( 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo* received_info, 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber lower, 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber higher); 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE SentPacketInfo { 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SentPacketInfo(); 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~SentPacketInfo(); 3852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const SentPacketInfo& s); 3872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to, but not including, the least unacked 3892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packet. 3902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The lowest packet we've sent which is unacked, and we expect an ack for. 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber least_unacked; 3932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 3942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicAckFrame { 3962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame() {} 3972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Testing convenience method to construct a QuicAckFrame with all packets 3982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from least_unacked to largest_observed acked. 3992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame(QuicPacketSequenceNumber largest_observed, 4002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime largest_observed_receive_time, 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber least_unacked); 4022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicAckFrame& s); 4052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SentPacketInfo sent_info; 4072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo received_info; 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Defines for all types of congestion feedback that will be negotiated in QUIC, 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// kTCP MUST be supported by all QUIC implementations to guarentee 100% 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// compatibility. 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum CongestionFeedbackType { 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kTCP, // Used to mimic TCP. 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kInterArrival, // Use additional inter arrival information. 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kFixRate, // Provided for testing. 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageTCP { 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 4212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicByteCount receive_window; 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageInterArrival { 4252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival(); 4262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~CongestionFeedbackMessageInterArrival(); 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 4282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The set of received packets since the last feedback was sent, along with 4292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // their arrival times. 4302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TimeMap received_packet_times; 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageFixRate { 4342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate(); 4352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicBandwidth bitrate; 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicCongestionFeedbackFrame { 4392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame(); 4402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicCongestionFeedbackFrame(); 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicCongestionFeedbackFrame& c); 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackType type; 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This should really be a union, but since the inter arrival struct 4472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // is non-trivial, C++ prohibits it. 4482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageTCP tcp; 4492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival inter_arrival; 4502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate fix_rate; 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicRstStreamFrame { 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame() {} 455c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamFrame(QuicStreamId stream_id, QuicRstStreamErrorCode error_code) 4562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : stream_id(stream_id), error_code(error_code) { 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_LE(error_code, std::numeric_limits<uint8>::max()); 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 461c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamErrorCode error_code; 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicConnectionCloseFrame { 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicErrorCode error_code; 4675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 4682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame ack_frame; 4692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicGoAwayFrame { 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame() {} 4732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame(QuicErrorCode error_code, 4742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id, 4752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& reason); 4762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicErrorCode error_code; 4782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id; 4792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string reason_phrase; 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 482c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// EncryptionLevel enumerates the stages of encryption that a QUIC connection 483c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// progresses through. When retransmitting a packet, the encryption level needs 484c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to be specified so that it is retransmitted at a level which the peer can 485c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// understand. 486c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum EncryptionLevel { 487c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_NONE = 0, 488c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_INITIAL = 1, 489c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_FORWARD_SECURE = 2, 490c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 491c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NUM_ENCRYPTION_LEVELS, 492c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 493c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFrame { 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrame() {} 4962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicPaddingFrame* padding_frame) 4972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(PADDING_FRAME), 4982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) padding_frame(padding_frame) { 4992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicStreamFrame* stream_frame) 5012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(STREAM_FRAME), 5022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) stream_frame(stream_frame) { 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicAckFrame* frame) 5052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(ACK_FRAME), 5062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ack_frame(frame) { 5072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicCongestionFeedbackFrame* frame) 5092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(CONGESTION_FEEDBACK_FRAME), 5102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) congestion_feedback_frame(frame) { 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicRstStreamFrame* frame) 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(RST_STREAM_FRAME), 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rst_stream_frame(frame) { 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicConnectionCloseFrame* frame) 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(CONNECTION_CLOSE_FRAME), 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) connection_close_frame(frame) { 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicGoAwayFrame* frame) 5212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(GOAWAY_FRAME), 5222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_frame(frame) { 5232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrameType type; 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) union { 5272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPaddingFrame* padding_frame; 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame* stream_frame; 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicAckFrame* ack_frame; 5302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame* congestion_feedback_frame; 5315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame* rst_stream_frame; 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicConnectionCloseFrame* connection_close_frame; 5332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame* goaway_frame; 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef std::vector<QuicFrame> QuicFrames; 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFecData { 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecData(); 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool operator==(const QuicFecData& other) const; 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The FEC group number is also the sequence number of the first 5452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // FEC protected packet. The last protected packet's sequence number will 5462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // be one less than the sequence number of the FEC packet. 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece redundancy; 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketData { 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string data; 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicData { 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(const char* buffer, size_t length) 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 5602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(false) {} 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(char* buffer, size_t length, bool owns_buffer) 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 5652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(owns_buffer) {} 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~QuicData(); 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece AsStringPiece() const { 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::StringPiece(data(), length()); 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* data() const { return buffer_; } 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length() const { return length_; } 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* buffer_; 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length_; 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool owns_buffer_; 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicData); 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicPacket : public QuicData { 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 5862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static QuicPacket* NewDataPacket(char* buffer, 5872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 5882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 5892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version) { 5902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, includes_version, false); 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static QuicPacket* NewFecPacket(char* buffer, 5942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 5952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 5962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version) { 5972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, includes_version, true); 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece FecProtectedData() const; 6012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece AssociatedData() const; 6022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece BeforePlaintext() const; 6032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece Plaintext() const; 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet() const { return is_fec_packet_; } 6062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version() const { return includes_version_; } 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* mutable_data() { return buffer_; } 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 6122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket(char* buffer, 6132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 6142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 6152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version, 6162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet) 6172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer), 6182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) buffer_(buffer), 6192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_fec_packet_(is_fec_packet), 6202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) includes_version_(includes_version) {} 6212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer_; 6232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool is_fec_packet_; 6242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool includes_version_; 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicPacket); 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicEncryptedPacket : public QuicData { 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(const char* buffer, size_t length) 6322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length) {} 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(char* buffer, size_t length, bool owns_buffer) 6352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer) {} 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 6382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member (in the base class QuicData) causes this object to have padding 6392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // bytes, which causes the default gtest object printer to read 6402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // uninitialize memory. So we need to teach gtest how to print this object. 6412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 6422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicEncryptedPacket& s); 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicEncryptedPacket); 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NET_EXPORT_PRIVATE RetransmittableFrames { 6492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 6502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames(); 6512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~RetransmittableFrames(); 6522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Allocates a local copy of the referenced StringPiece has QuicStreamFrame 6542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // use it. 6552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of |stream_frame|. 6562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddStreamFrame(QuicStreamFrame* stream_frame); 6572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of the frame inside |frame|. 6582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddNonStreamFrame(const QuicFrame& frame); 6592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrames& frames() const { return frames_; } 6602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 661c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void set_encryption_level(EncryptionLevel level); 662c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level() const { 663c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return encryption_level_; 664c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 665c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 6662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 6672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicFrames frames_; 668c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level_; 6692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Data referenced by the StringPiece of a QuicStreamFrame. 6702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string*> stream_data_; 6712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RetransmittableFrames); 6732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 6742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE SerializedPacket { 6762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SerializedPacket(QuicPacketSequenceNumber sequence_number, 6772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet, 6782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash, 6792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames) 6802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : sequence_number(sequence_number), 6812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) packet(packet), 6822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) entropy_hash(entropy_hash), 6832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) retransmittable_frames(retransmittable_frames) {} 6842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number; 6862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet; 6872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 6882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames; 6892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 6902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A struct for functions which consume data payloads and fins. 6922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// The first member of the pair indicates bytes consumed. 6932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// The second member of the pair indicates if an incoming fin was consumed. 6942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct QuicConsumedData { 6952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicConsumedData(size_t bytes_consumed, bool fin_consumed) 6962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : bytes_consumed(bytes_consumed), 6972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) fin_consumed(fin_consumed) {} 6982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 7002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member causes this object to have padding bytes, which causes the 7012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // default gtest object printer to read uninitialize memory. So we need 7022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // to teach gtest how to print this object. 7032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicConsumedData& s); 7052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t bytes_consumed; 7072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fin_consumed; 7082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 7092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 7115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // NET_QUIC_QUIC_PROTOCOL_H_ 713