quic_protocol.h revision 58537e28ecd584eab876aee8be7156509866d23a
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" 187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "base/containers/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) 3058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)class QuicAckNotifier; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class QuicPacket; 32868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)struct QuicPacketHeader; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicGuid; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32 QuicStreamId; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicStreamOffset; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicPacketSequenceNumber; 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketSequenceNumber QuicFecGroupNumber; 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint64 QuicPublicResetNonceProof; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint8 QuicPacketEntropyHash; 41b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicHeaderId; 42b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// QuicTag is the type of a tag in the wire protocol. 43b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicTag; 44b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef std::vector<QuicTag> QuicTagVector; 45424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)typedef uint32 QuicPriority; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): Consider Quic specific names for these constants. 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Maximum size in bytes of a QUIC packet. 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const QuicByteCount kMaxPacketSize = 1200; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Maximum number of open streams per connection. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const size_t kDefaultMaxStreamsPerConnection = 100; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for public flags in the packet header. 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicFlagsSize = 1; 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for version number in the packet header. 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kQuicVersionSize = 4; 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for private flags in the packet header. 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPrivateFlagsSize = 1; 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for FEC group in the packet header. 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kFecGroupSize = 1; 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for the nonce proof in public reset packet. 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicResetNonceSize = 8; 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Signifies that the QuicPacket will contain version of the protocol. 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const bool kIncludeVersion = true; 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Index of the first byte in a QUIC packet which is used in hash calculation. 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kStartOfHashData = 0; 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Limit on the delta between stream IDs. 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kMaxStreamIdDelta = 100; 73b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// Limit on the delta between header IDs. 74b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicHeaderId kMaxHeaderIdDelta = 100; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Reserved ID for the crypto stream. 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): ensure that this is not usable by any other streams. 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kCryptoStreamId = 1; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// This is the default network timeout a for connection till the crypto 8190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// handshake succeeds and the negotiated timeout from the handshake is received. 82868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultInitialTimeoutSecs = 120; // 2 mins. 8390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)const int64 kDefaultTimeoutSecs = 60 * 10; // 10 minutes. 84868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultMaxTimeForCryptoHandshakeSecs = 5; // 5 secs. 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 86c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum Retransmission { 87b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NOT_RETRANSMISSION, 88b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) IS_RETRANSMISSION, 89c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 90c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 91c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum HasRetransmittableData { 92b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NO_RETRANSMITTABLE_DATA, 93b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) HAS_RETRANSMITTABLE_DATA, 94c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 96a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)enum IsHandshake { 97a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) NOT_HANDSHAKE, 98a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) IS_HANDSHAKE 99a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)}; 100a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum QuicFrameType { 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PADDING_FRAME = 0, 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RST_STREAM_FRAME, 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CONNECTION_CLOSE_FRAME, 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GOAWAY_FRAME, 10658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) STREAM_FRAME, 10758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ACK_FRAME, 10858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) CONGESTION_FEEDBACK_FRAME, 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NUM_FRAME_TYPES 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 112868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum QuicGuidLength { 113868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_0BYTE_GUID = 0, 114868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_1BYTE_GUID = 1, 115868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_4BYTE_GUID = 4, 116868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_8BYTE_GUID = 8 117868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 118868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 119868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum InFecGroup { 120868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) NOT_IN_FEC_GROUP, 121868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) IN_FEC_GROUP, 122868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 123868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 124868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum QuicSequenceNumberLength { 125868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_1BYTE_SEQUENCE_NUMBER = 1, 126868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_2BYTE_SEQUENCE_NUMBER = 2, 127868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_4BYTE_SEQUENCE_NUMBER = 4, 128868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_6BYTE_SEQUENCE_NUMBER = 6 129868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 130868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1317dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The public flags are specified in one byte. 1322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPublicFlags { 1332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_NONE = 0, 1347dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1357dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does the packet header contains version info? 1367dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_VERSION = 1 << 0, 1377dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1387dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Is this packet a public reset packet? 1397dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_RST = 1 << 1, 1407dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1417dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bits 2 and 3 specify the length of the GUID as follows: 1427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----00--: 0 bytes 1437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----01--: 1 byte 1447dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----10--: 4 bytes 1457dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----11--: 8 bytes 14690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_0BYTE_GUID = 0, 14790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_GUID = 1 << 2, 14890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_GUID = 1 << 3, 14990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_8BYTE_GUID = 1 << 3 | 1 << 2, 1507dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1517dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bits 4 and 5 describe the packet sequence number length as follows: 1527dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --00----: 1 byte 1537dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --01----: 2 bytes 1547dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --10----: 4 bytes 1557dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --11----: 6 bytes 156868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_SEQUENCE = 0, 157868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_2BYTE_SEQUENCE = 1 << 4, 158868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_SEQUENCE = 1 << 5, 159868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_6BYTE_SEQUENCE = 1 << 5 | 1 << 4, 1607dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1617dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 6 and 7 are not currently used): 00111111 1627dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_MAX = (1 << 6) - 1 1632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1657dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The private flags are specified in one byte. 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPrivateFlags { 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_NONE = 0, 1687dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1697dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does this packet contain an entropy bit? 170868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PRIVATE_FLAGS_ENTROPY = 1 << 0, 1717dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1727dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Payload is part of an FEC group? 1737dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC_GROUP = 1 << 1, 1747dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1757dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 2: Payload is FEC as opposed to frames? 1767dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC = 1 << 2, 1777dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1787dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 3-7 are not currently used): 00000111 1797dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_MAX = (1 << 3) - 1 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 182558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// The available versions of QUIC. Guaranteed that the integer value of the enum 183558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// will match the version number. 184558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// When adding a new version to this enum you should add it to 185ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// kSupportedQuicVersions (if appropriate), and also add a new case to the 186ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and 187ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// QuicVersionToString. 188558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochenum QuicVersion { 189558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // Special case to indicate unknown/unsupported QUIC version. 190558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QUIC_VERSION_UNSUPPORTED = 0, 191558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 192ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch QUIC_VERSION_7 = 7, 193424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) QUIC_VERSION_8 = 8, 19458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QUIC_VERSION_9 = 9, 19558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QUIC_VERSION_10 = 10, // Current version. 196558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch}; 197558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 198558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This vector contains QUIC versions which we currently support. 199558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This should be ordered such that the highest supported version is the first 200558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// element, with subsequent elements in descending order (versions can be 201558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// skipped as necessary). 2022385ea399aae016c0806a4f9ef3c9cfe3d2a39dfBen Murdochstatic const QuicVersion kSupportedQuicVersions[] = 20358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) {QUIC_VERSION_10, QUIC_VERSION_9}; 204558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 205558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochtypedef std::vector<QuicVersion> QuicVersionVector; 206558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 207558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Upper limit on versions we support. 208558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicVersionMax(); 209558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 210c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch// Lower limit on versions we support. 211c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicVersionMin(); 212c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch 213558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// QuicTag is written to and read from the wire, but we prefer to use 214558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the more readable QuicVersion at other levels. 215558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a QuicTag. Returns 0 216558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// if QuicVersion is unsupported. 217558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag QuicVersionToQuicTag(const QuicVersion version); 218558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 219558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns appropriate QuicVersion from a QuicTag. 220558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns QUIC_VERSION_UNSUPPORTED if version_tag cannot be understood. 221558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicTagToQuicVersion(const QuicTag version_tag); 222558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 223424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)// Returns the appropriate QuicTag for a properly formed version string 224424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)// (e.g. Q008). 225424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)NET_EXPORT_PRIVATE QuicTag StringToQuicTag(std::string version); 226424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 227558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a string. 228558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns strings corresponding to enum names (e.g. QUIC_VERSION_6). 229558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE std::string QuicVersionToString(const QuicVersion version); 230558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 231558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns comma separated list of string representations of QuicVersion enum 232558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// values in the supplied QuicVersionArray. 233558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE std::string QuicVersionArrayToString( 234558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch const QuicVersion versions[], int num_versions); 235558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 236558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Version and Crypto tags are written to the wire with a big-endian 237558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// representation of the name of the tag. For example 238558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the client hello tag (CHLO) will be written as the 239558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// following 4 bytes: 'C' 'H' 'L' 'O'. Since it is 240558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// stored in memory as a little endian uint32, we need 241558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// to reverse the order of the bytes. 242558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 243558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag returns a value given the four bytes. For example: 244558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag('C', 'H', 'L', 'O'); 245558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag MakeQuicTag(char a, char b, char c, char d); 246558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 247868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Size in bytes of the data or fec packet header. 248868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(QuicPacketHeader header); 249868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 250868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize( 251868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 252868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 253868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 254868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group); 255868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 256868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Size in bytes of the public reset packet. 257868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPublicResetPacketSize(); 258868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 259868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of FEC protected data. 260868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfFecProtectedData( 261868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 262868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 263868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 264868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of encrypted data. 265868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfEncryptedData( 266868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 267868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 268868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 269868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 270c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicRstStreamErrorCode { 271c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_NO_ERROR = 0, 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was some server error which halted stream processing. 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_SERVER_ERROR_PROCESSING_STREAM, 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got two fin or reset offsets which did not match. 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_MULTIPLE_TERMINATION_OFFSETS, 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got bad payload and can not respond to it at the protocol level. 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_BAD_APPLICATION_PAYLOAD, 279c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Stream closed due to connection error. No reset frame is sent when this 280c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // happens. 281c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_CONNECTION_ERROR, 282c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // GoAway frame sent. No more stream can be created. 283c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_PEER_GOING_AWAY, 284424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // The stream has been cancelled. 285424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) QUIC_STREAM_CANCELLED, 286c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 287c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 288c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_LAST_ERROR, 289c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// These values must remain stable as they are uploaded to UMA histograms. 2923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// To add a new error code, use the current value of QUIC_LAST_ERROR and 2933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// increment QUIC_LAST_ERROR. 294c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicErrorCode { 295c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_NO_ERROR = 0, 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 297c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Connection has reached an invalid state. 2983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INTERNAL_ERROR = 1, 299c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There were data frames after the a fin or reset. 3003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_STREAM_DATA_AFTER_TERMINATION = 2, 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Control frame is malformed. 3023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_PACKET_HEADER = 3, 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Frame data is malformed. 3043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_FRAME_DATA = 4, 3053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // The packet contained no payload. 3063551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_MISSING_PAYLOAD = 48, 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FEC data is malformed. 3083551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_FEC_DATA = 5, 3093551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // STREAM frame data is malformed. 3103551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_STREAM_DATA = 46, 3113551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // RST_STREAM frame data is malformed. 3123551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_RST_STREAM_DATA = 6, 3133551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // CONNECTION_CLOSE frame data is malformed. 3143551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CONNECTION_CLOSE_DATA = 7, 3153551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // GOAWAY frame data is malformed. 3163551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_GOAWAY_DATA = 8, 3173551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // ACK frame data is malformed. 3183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_ACK_DATA = 9, 3193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // CONGESTION_FEEDBACK frame data is malformed. 3203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CONGESTION_FEEDBACK_DATA = 47, 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Version negotiation packet is malformed. 3223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_VERSION_NEGOTIATION_PACKET = 10, 32390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Public RST packet is malformed. 3243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_PUBLIC_RST_PACKET = 11, 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error decrypting. 3263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_DECRYPTION_FAILURE = 12, 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error encrypting. 3283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_ENCRYPTION_FAILURE = 13, 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The packet exceeded kMaxPacketSize. 3303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_TOO_LARGE = 14, 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Data was sent for a stream which did not exist. 3323551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_FOR_NONEXISTENT_STREAM = 15, 3332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The peer is going away. May be a client or server. 3343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PEER_GOING_AWAY = 16, 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A stream ID was invalid. 3363551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_STREAM_ID = 17, 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Too many streams already open. 3383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_TOO_MANY_OPEN_STREAMS = 18, 3392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Received public reset for this connection. 3403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PUBLIC_RESET = 19, 341b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Invalid protocol version. 3423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_VERSION = 20, 343b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Stream reset before headers decompressed. 3443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED = 21, 345b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The Header ID for a stream was too far from the previous. 3463551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_HEADER_ID = 22, 34790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Negotiable parameter received during handshake had invalid value. 3483551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_NEGOTIATED_VALUE = 23, 34990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error decompressing data. 3503551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_DECOMPRESSION_FAILURE = 24, 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We hit our prenegotiated (or default) timeout 3523551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CONNECTION_TIMED_OUT = 25, 35390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error encountered migrating addresses 3543551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_ERROR_MIGRATING_ADDRESS = 26, 35558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // There was an error while writing to the socket. 3563551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_WRITE_ERROR = 27, 35758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // There was an error while reading from the socket. 35858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QUIC_PACKET_READ_ERROR = 51, 35990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Crypto errors. 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 36390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Hanshake failed. 3643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_HANDSHAKE_FAILED = 28, 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained out of order tags. 3663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TAGS_OUT_OF_ORDER = 29, 3672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Handshake message contained too many entries. 3683551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_ENTRIES = 30, 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained an invalid value length. 3703551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_INVALID_VALUE_LENGTH = 31, 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A crypto message was received after the handshake was complete. 3723551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE = 32, 3732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal message tag. 3743551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_TYPE = 33, 3752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal parameter. 3763551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER = 34, 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a mandatory parameter missing. 3783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND = 35, 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a parameter that has no overlap 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // with the local parameter. 3813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP = 36, 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received that contained a parameter with too few 3832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // values. 3843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND = 37, 385c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // An internal error occured in crypto processing. 3863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_INTERNAL_ERROR = 38, 387c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto handshake message specified an unsupported version. 3883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_VERSION_NOT_SUPPORTED = 39, 389c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There was no intersection between the crypto primitives supported by the 390c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // peer and ourselves. 3913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_NO_SUPPORT = 40, 392c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The server rejected our client hello messages too many times. 3933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_REJECTS = 41, 394c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The client rejected the server's certificate chain or signature. 3953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PROOF_INVALID = 42, 396c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto message was received with a duplicate tag. 3973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_DUPLICATE_TAG = 43, 398b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // A crypto message was received with the wrong encryption level (i.e. it 399b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // should have been encrypted but was not.) 4003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT = 44, 401b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The server config for a server has expired. 4023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_SERVER_CONFIG_EXPIRED = 45, 403c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 404c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 40558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QUIC_LAST_ERROR = 52, 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketPublicHeader { 4092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader(); 4102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPacketPublicHeader(const QuicPacketPublicHeader& other); 4112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicPacketPublicHeader(); 4122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Universal header. All QuicPacket headers will have a guid and public flags. 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicGuid guid; 415868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length; 4162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool reset_flag; 4172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool version_flag; 418868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length; 419558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QuicVersionVector versions; 4202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Header for Data or FEC packets. 423c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketHeader { 424c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicPacketHeader(); 425c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) explicit QuicPacketHeader(const QuicPacketPublicHeader& header); 4262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicPacketHeader& s); 4292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 4312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fec_flag; 4322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool entropy_flag; 4332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber packet_sequence_number; 435868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group; 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 439c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPublicResetPacket { 4402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetPacket() {} 4412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPublicResetPacket(const QuicPacketPublicHeader& header) 4422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public_header(header) {} 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber rejected_sequence_number; 4452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetNonceProof nonce_proof; 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicVersionNegotiationState { 4492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) START_NEGOTIATION = 0, 450ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // Server-side this implies we've sent a version negotiation packet and are 451ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // waiting on the client to select a compatible version. Client-side this 452ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // implies we've gotten a version negotiation packet, are retransmitting the 453ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // initial packets with a supported version and are waiting for our first 454ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // packet from the server. 455ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch NEGOTIATION_IN_PROGRESS, 456ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // This indicates this endpoint has received a packet from the peer with a 457ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // version this endpoint supports. Version negotiation is complete, and the 458ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // version number will no longer be sent with future packets. 4592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NEGOTIATED_VERSION 4602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketPublicHeader QuicVersionNegotiationPacket; 4632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A padding frame contains no payload. 4652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPaddingFrame { 4662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicStreamFrame { 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(); 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(QuicStreamId stream_id, 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin, 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset, 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data); 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin; 4772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset; // Location of this data in the stream. 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data; 47958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 48058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // If this is set, then when this packet is ACKed the AckNotifier will be 48158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // informed. 48258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QuicAckNotifier* notifier; 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(ianswett): Re-evaluate the trade-offs of hash_set vs set when framing 4862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// is finalized. 4872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::set<QuicPacketSequenceNumber> SequenceNumberSet; 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(pwestin): Add a way to enforce the max size of this map. 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::map<QuicPacketSequenceNumber, QuicTime> TimeMap; 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE ReceivedPacketInfo { 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReceivedPacketInfo(); 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~ReceivedPacketInfo(); 4942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const ReceivedPacketInfo& s); 4962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to largest observed not including missing 4982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packets. 4992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 5002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The highest packet sequence number we've observed from the peer. 5022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // 5032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // In general, this should be the largest packet number we've received. In 5042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the case of truncated acks, we may have to advertise a lower "upper bound" 5052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // than largest received, to avoid implicitly acking missing packets that 5062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // don't fit in the missing packet list due to size limitations. In this 5072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // case, largest_observed may be a packet which is also in the missing packets 5082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // list. 5092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber largest_observed; 5102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Time elapsed since largest_observed was received until this Ack frame was 5122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // sent. 5132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime::Delta delta_time_largest_observed; 5142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(satyamshekhar): Can be optimized using an interval set like data 5162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // structure. 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The set of packets which we're expecting and have not received. 5182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SequenceNumberSet missing_packets; 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// True if the sequence number is greater than largest_observed or is listed 5222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// as missing. 5232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Always returns false for sequence numbers less than least_unacked. 5242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool NET_EXPORT_PRIVATE IsAwaitingPacket( 5252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ReceivedPacketInfo& received_info, 5262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number); 5272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Inserts missing packets between [lower, higher). 5292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NET_EXPORT_PRIVATE InsertMissingPacketsBetween( 5302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo* received_info, 5312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber lower, 5322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber higher); 5332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE SentPacketInfo { 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SentPacketInfo(); 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~SentPacketInfo(); 5372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const SentPacketInfo& s); 5392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to, but not including, the least unacked 5412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packet. 5422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The lowest packet we've sent which is unacked, and we expect an ack for. 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber least_unacked; 5452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicAckFrame { 5482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame() {} 5492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Testing convenience method to construct a QuicAckFrame with all packets 5502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from least_unacked to largest_observed acked. 5512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame(QuicPacketSequenceNumber largest_observed, 5522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime largest_observed_receive_time, 5532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber least_unacked); 5542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicAckFrame& s); 5572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SentPacketInfo sent_info; 5592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo received_info; 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Defines for all types of congestion feedback that will be negotiated in QUIC, 5637dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// kTCP MUST be supported by all QUIC implementations to guarantee 100% 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// compatibility. 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum CongestionFeedbackType { 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kTCP, // Used to mimic TCP. 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kInterArrival, // Use additional inter arrival information. 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kFixRate, // Provided for testing. 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageTCP { 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 5732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicByteCount receive_window; 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageInterArrival { 5772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival(); 5782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~CongestionFeedbackMessageInterArrival(); 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 5802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The set of received packets since the last feedback was sent, along with 5812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // their arrival times. 5822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TimeMap received_packet_times; 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageFixRate { 5862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate(); 5872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicBandwidth bitrate; 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicCongestionFeedbackFrame { 5912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame(); 5922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicCongestionFeedbackFrame(); 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicCongestionFeedbackFrame& c); 5965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackType type; 5982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This should really be a union, but since the inter arrival struct 5992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // is non-trivial, C++ prohibits it. 6002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageTCP tcp; 6012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival inter_arrival; 6022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate fix_rate; 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicRstStreamFrame { 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame() {} 607c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamFrame(QuicStreamId stream_id, QuicRstStreamErrorCode error_code) 6082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : stream_id(stream_id), error_code(error_code) { 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_LE(error_code, std::numeric_limits<uint8>::max()); 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 613c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamErrorCode error_code; 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicConnectionCloseFrame { 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicErrorCode error_code; 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 6202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame ack_frame; 6212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 6222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicGoAwayFrame { 6242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame() {} 6252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame(QuicErrorCode error_code, 6262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id, 6272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& reason); 6282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicErrorCode error_code; 6302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id; 6312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string reason_phrase; 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 634c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// EncryptionLevel enumerates the stages of encryption that a QUIC connection 635c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// progresses through. When retransmitting a packet, the encryption level needs 636c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to be specified so that it is retransmitted at a level which the peer can 637c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// understand. 638c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum EncryptionLevel { 639c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_NONE = 0, 640c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_INITIAL = 1, 641c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_FORWARD_SECURE = 2, 642c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 643c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NUM_ENCRYPTION_LEVELS, 644c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 645c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFrame { 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrame() {} 6482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicPaddingFrame* padding_frame) 6492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(PADDING_FRAME), 6502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) padding_frame(padding_frame) { 6512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicStreamFrame* stream_frame) 6532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(STREAM_FRAME), 6542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) stream_frame(stream_frame) { 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicAckFrame* frame) 6572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(ACK_FRAME), 6582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ack_frame(frame) { 6592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicCongestionFeedbackFrame* frame) 6612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(CONGESTION_FEEDBACK_FRAME), 6622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) congestion_feedback_frame(frame) { 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicRstStreamFrame* frame) 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(RST_STREAM_FRAME), 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rst_stream_frame(frame) { 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicConnectionCloseFrame* frame) 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(CONNECTION_CLOSE_FRAME), 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) connection_close_frame(frame) { 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicGoAwayFrame* frame) 6732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(GOAWAY_FRAME), 6742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_frame(frame) { 6752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrameType type; 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) union { 6792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPaddingFrame* padding_frame; 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame* stream_frame; 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicAckFrame* ack_frame; 6822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame* congestion_feedback_frame; 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame* rst_stream_frame; 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicConnectionCloseFrame* connection_close_frame; 6852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame* goaway_frame; 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef std::vector<QuicFrame> QuicFrames; 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFecData { 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecData(); 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The FEC group number is also the sequence number of the first 6952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // FEC protected packet. The last protected packet's sequence number will 6962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // be one less than the sequence number of the FEC packet. 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece redundancy; 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicData { 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(const char* buffer, size_t length) 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 7062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(false) {} 7075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(char* buffer, size_t length, bool owns_buffer) 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 7112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(owns_buffer) {} 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~QuicData(); 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece AsStringPiece() const { 7165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::StringPiece(data(), length()); 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* data() const { return buffer_; } 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length() const { return length_; } 7215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 7235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* buffer_; 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length_; 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool owns_buffer_; 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicData); 7285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicPacket : public QuicData { 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 732868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewDataPacket( 733868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 734868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 735868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 736868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 737868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 738868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 739868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, guid_length, 740868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, false); 7415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 743868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewFecPacket( 744868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 745868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 746868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 747868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 748868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 749868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 750868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, guid_length, 751868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, true); 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece FecProtectedData() const; 7552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece AssociatedData() const; 7562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece BeforePlaintext() const; 7572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece Plaintext() const; 7585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet() const { return is_fec_packet_; } 7602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* mutable_data() { return buffer_; } 7625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 7642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket(char* buffer, 7652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 7662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 767868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 7682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version, 769868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 7702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet) 7712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer), 7722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) buffer_(buffer), 7732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_fec_packet_(is_fec_packet), 774868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) guid_length_(guid_length), 775868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version_(includes_version), 776868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) sequence_number_length_(sequence_number_length) {} 7772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer_; 7792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool is_fec_packet_; 780868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const QuicGuidLength guid_length_; 7812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool includes_version_; 782868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const QuicSequenceNumberLength sequence_number_length_; 7835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicPacket); 7855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicEncryptedPacket : public QuicData { 7885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 7895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(const char* buffer, size_t length) 7902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length) {} 7915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(char* buffer, size_t length, bool owns_buffer) 7932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer) {} 7945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 7962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member (in the base class QuicData) causes this object to have padding 7972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // bytes, which causes the default gtest object printer to read 7982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // uninitialize memory. So we need to teach gtest how to print this object. 7992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 8002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicEncryptedPacket& s); 8015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 8035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicEncryptedPacket); 8045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 8055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NET_EXPORT_PRIVATE RetransmittableFrames { 8072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 8082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames(); 8092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~RetransmittableFrames(); 8102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Allocates a local copy of the referenced StringPiece has QuicStreamFrame 8122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // use it. 8132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of |stream_frame|. 8142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddStreamFrame(QuicStreamFrame* stream_frame); 8152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of the frame inside |frame|. 8162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddNonStreamFrame(const QuicFrame& frame); 8172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrames& frames() const { return frames_; } 8182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 819c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void set_encryption_level(EncryptionLevel level); 820c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level() const { 821c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return encryption_level_; 822c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 823c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 8242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 8252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicFrames frames_; 826c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level_; 8272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Data referenced by the StringPiece of a QuicStreamFrame. 8282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string*> stream_data_; 8292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RetransmittableFrames); 8312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 8322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE SerializedPacket { 8342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SerializedPacket(QuicPacketSequenceNumber sequence_number, 8353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 8362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet, 8372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash, 83858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) RetransmittableFrames* retransmittable_frames); 83958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ~SerializedPacket(); 8402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number; 8423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length; 8432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet; 8442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 8452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames; 84658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 84758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // If set, these will be called when this packet is ACKed by the peer. 84858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) std::set<QuicAckNotifier*> notifiers; 8492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 8502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A struct for functions which consume data payloads and fins. 8522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct QuicConsumedData { 8532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicConsumedData(size_t bytes_consumed, bool fin_consumed) 8542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : bytes_consumed(bytes_consumed), 8552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) fin_consumed(fin_consumed) {} 8562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 8572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member causes this object to have padding bytes, which causes the 8582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // default gtest object printer to read uninitialize memory. So we need 8592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // to teach gtest how to print this object. 8602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 8612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicConsumedData& s); 8622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 86358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // How many bytes were consumed. 8642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t bytes_consumed; 86558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 86658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // True if an incoming fin was consumed. 8672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fin_consumed; 8682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 8692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 8715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // NET_QUIC_QUIC_PROTOCOL_H_ 873