quic_protocol.h revision 558790d6acca3451cf3a6b497803a5f07d0bec58
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) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class QuicPacket; 31868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)struct QuicPacketHeader; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicGuid; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32 QuicStreamId; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicStreamOffset; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicPacketSequenceNumber; 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketSequenceNumber QuicFecGroupNumber; 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint64 QuicPublicResetNonceProof; 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint8 QuicPacketEntropyHash; 40b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicHeaderId; 41b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// QuicTag is the type of a tag in the wire protocol. 42b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicTag; 43b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef std::vector<QuicTag> QuicTagVector; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): Consider Quic specific names for these constants. 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Maximum size in bytes of a QUIC packet. 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const QuicByteCount kMaxPacketSize = 1200; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Maximum number of open streams per connection. 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const size_t kDefaultMaxStreamsPerConnection = 100; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for public flags in the packet header. 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicFlagsSize = 1; 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for version number in the packet header. 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kQuicVersionSize = 4; 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for private flags in the packet header. 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPrivateFlagsSize = 1; 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for FEC group in the packet header. 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kFecGroupSize = 1; 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for the nonce proof in public reset packet. 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicResetNonceSize = 8; 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Signifies that the QuicPacket will contain version of the protocol. 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const bool kIncludeVersion = true; 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Index of the first byte in a QUIC packet which is used in hash calculation. 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kStartOfHashData = 0; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Limit on the delta between stream IDs. 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kMaxStreamIdDelta = 100; 71b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// Limit on the delta between header IDs. 72b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicHeaderId kMaxHeaderIdDelta = 100; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Reserved ID for the crypto stream. 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): ensure that this is not usable by any other streams. 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kCryptoStreamId = 1; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// This is the default network timeout a for connection till the crypto 7990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// handshake succeeds and the negotiated timeout from the handshake is received. 80868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultInitialTimeoutSecs = 120; // 2 mins. 8190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)const int64 kDefaultTimeoutSecs = 60 * 10; // 10 minutes. 82868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultMaxTimeForCryptoHandshakeSecs = 5; // 5 secs. 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 84c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum Retransmission { 85b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NOT_RETRANSMISSION, 86b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) IS_RETRANSMISSION, 87c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 88c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 89c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum HasRetransmittableData { 90b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NO_RETRANSMITTABLE_DATA, 91b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) HAS_RETRANSMITTABLE_DATA, 92c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 93c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum QuicFrameType { 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PADDING_FRAME = 0, 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) STREAM_FRAME, 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ACK_FRAME, 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CONGESTION_FEEDBACK_FRAME, 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RST_STREAM_FRAME, 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CONNECTION_CLOSE_FRAME, 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GOAWAY_FRAME, 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NUM_FRAME_TYPES 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum QuicGuidLength { 106868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_0BYTE_GUID = 0, 107868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_1BYTE_GUID = 1, 108868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_4BYTE_GUID = 4, 109868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_8BYTE_GUID = 8 110868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 111868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 112868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum InFecGroup { 113868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) NOT_IN_FEC_GROUP, 114868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) IN_FEC_GROUP, 115868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 116868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 117868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum QuicSequenceNumberLength { 118868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_1BYTE_SEQUENCE_NUMBER = 1, 119868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_2BYTE_SEQUENCE_NUMBER = 2, 120868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_4BYTE_SEQUENCE_NUMBER = 4, 121868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_6BYTE_SEQUENCE_NUMBER = 6 122868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 123868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1247dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The public flags are specified in one byte. 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPublicFlags { 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_NONE = 0, 1277dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1287dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does the packet header contains version info? 1297dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_VERSION = 1 << 0, 1307dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1317dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Is this packet a public reset packet? 1327dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_RST = 1 << 1, 1337dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1347dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bits 2 and 3 specify the length of the GUID as follows: 1357dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----00--: 0 bytes 1367dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----01--: 1 byte 1377dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----10--: 4 bytes 1387dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----11--: 8 bytes 13990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_0BYTE_GUID = 0, 14090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_GUID = 1 << 2, 14190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_GUID = 1 << 3, 14290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PACKET_PUBLIC_FLAGS_8BYTE_GUID = 1 << 3 | 1 << 2, 1437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1447dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bits 4 and 5 describe the packet sequence number length as follows: 1457dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --00----: 1 byte 1467dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --01----: 2 bytes 1477dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --10----: 4 bytes 1487dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --11----: 6 bytes 149868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_SEQUENCE = 0, 150868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_2BYTE_SEQUENCE = 1 << 4, 151868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_SEQUENCE = 1 << 5, 152868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PUBLIC_FLAGS_6BYTE_SEQUENCE = 1 << 5 | 1 << 4, 1537dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1547dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 6 and 7 are not currently used): 00111111 1557dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_MAX = (1 << 6) - 1 1562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1587dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The private flags are specified in one byte. 1592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPrivateFlags { 1602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_NONE = 0, 1617dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1627dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does this packet contain an entropy bit? 163868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PRIVATE_FLAGS_ENTROPY = 1 << 0, 1647dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1657dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Payload is part of an FEC group? 1667dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC_GROUP = 1 << 1, 1677dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1687dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 2: Payload is FEC as opposed to frames? 1697dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC = 1 << 2, 1707dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1717dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 3-7 are not currently used): 00000111 1727dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_MAX = (1 << 3) - 1 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// The available versions of QUIC. Guaranteed that the integer value of the enum 176558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// will match the version number. 177558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// When adding a new version to this enum you should add it to 178558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// kSupportedVersions (if appropriate), and also add a new case to the helper 179558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// methods QuicVersionToQuicTag, and QuicTagToQuicVersion. 180558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochenum QuicVersion { 181558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // Special case to indicate unknown/unsupported QUIC version. 182558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QUIC_VERSION_UNSUPPORTED = 0, 183558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 184558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QUIC_VERSION_6 = 6, // Current version. 185558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch}; 186558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 187558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This vector contains QUIC versions which we currently support. 188558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This should be ordered such that the highest supported version is the first 189558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// element, with subsequent elements in descending order (versions can be 190558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// skipped as necessary). 191558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochstatic const QuicVersion kSupportedQuicVersions[] = {QUIC_VERSION_6}; 192558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 193558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochtypedef std::vector<QuicVersion> QuicVersionVector; 194558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 195558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Upper limit on versions we support. 196558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicVersionMax(); 197558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 198558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// QuicTag is written to and read from the wire, but we prefer to use 199558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the more readable QuicVersion at other levels. 200558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a QuicTag. Returns 0 201558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// if QuicVersion is unsupported. 202558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag QuicVersionToQuicTag(const QuicVersion version); 203558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 204558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns appropriate QuicVersion from a QuicTag. 205558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns QUIC_VERSION_UNSUPPORTED if version_tag cannot be understood. 206558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicTagToQuicVersion(const QuicTag version_tag); 207558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 208558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a string. 209558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns strings corresponding to enum names (e.g. QUIC_VERSION_6). 210558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE std::string QuicVersionToString(const QuicVersion version); 211558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 212558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns comma separated list of string representations of QuicVersion enum 213558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// values in the supplied QuicVersionArray. 214558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE std::string QuicVersionArrayToString( 215558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch const QuicVersion versions[], int num_versions); 216558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 217558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Version and Crypto tags are written to the wire with a big-endian 218558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// representation of the name of the tag. For example 219558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the client hello tag (CHLO) will be written as the 220558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// following 4 bytes: 'C' 'H' 'L' 'O'. Since it is 221558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// stored in memory as a little endian uint32, we need 222558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// to reverse the order of the bytes. 223558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 224558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag returns a value given the four bytes. For example: 225558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag('C', 'H', 'L', 'O'); 226558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag MakeQuicTag(char a, char b, char c, char d); 227558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 228868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Size in bytes of the data or fec packet header. 229868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(QuicPacketHeader header); 230868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 231868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize( 232868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 233868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 234868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 235868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group); 236868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 237868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Size in bytes of the public reset packet. 238868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPublicResetPacketSize(); 239868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 240868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of FEC protected data. 241868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfFecProtectedData( 242868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 243868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 244868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 245868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of encrypted data. 246868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfEncryptedData( 247868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 248868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 249868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 250868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 251c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicRstStreamErrorCode { 252c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_NO_ERROR = 0, 2532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was some server error which halted stream processing. 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_SERVER_ERROR_PROCESSING_STREAM, 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got two fin or reset offsets which did not match. 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_MULTIPLE_TERMINATION_OFFSETS, 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got bad payload and can not respond to it at the protocol level. 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_BAD_APPLICATION_PAYLOAD, 260c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Stream closed due to connection error. No reset frame is sent when this 261c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // happens. 262c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_CONNECTION_ERROR, 263c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // GoAway frame sent. No more stream can be created. 264c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_PEER_GOING_AWAY, 265c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 266c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 267c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_LAST_ERROR, 268c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 270c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicErrorCode { 271c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_NO_ERROR = 0, 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 273c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Connection has reached an invalid state. 274c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_INTERNAL_ERROR, 275c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There were data frames after the a fin or reset. 276c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_DATA_AFTER_TERMINATION, 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Control frame is malformed. 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_PACKET_HEADER, 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Frame data is malformed. 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_FRAME_DATA, 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FEC data is malformed. 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_FEC_DATA, 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stream rst data is malformed 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_RST_STREAM_DATA, 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Connection close data is malformed. 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_CONNECTION_CLOSE_DATA, 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // GoAway data is malformed. 2882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_GOAWAY_DATA, 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ack data is malformed. 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_ACK_DATA, 2912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Version negotiation packet is malformed. 2922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_VERSION_NEGOTIATION_PACKET, 29390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Public RST packet is malformed. 29490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_INVALID_PUBLIC_RST_PACKET, 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error decrypting. 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_DECRYPTION_FAILURE, 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error encrypting. 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_ENCRYPTION_FAILURE, 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The packet exceeded kMaxPacketSize. 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_PACKET_TOO_LARGE, 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Data was sent for a stream which did not exist. 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_PACKET_FOR_NONEXISTENT_STREAM, 3032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The peer is going away. May be a client or server. 3042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_PEER_GOING_AWAY, 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A stream ID was invalid. 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_STREAM_ID, 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Too many streams already open. 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_TOO_MANY_OPEN_STREAMS, 3092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Received public reset for this connection. 3102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_PUBLIC_RESET, 311b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Invalid protocol version. 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_VERSION, 313b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Stream reset before headers decompressed. 314b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED, 315b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The Header ID for a stream was too far from the previous. 316b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_INVALID_HEADER_ID, 31790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Negotiable parameter received during handshake had invalid value. 31890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_INVALID_NEGOTIATED_VALUE, 31990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error decompressing data. 32090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_DECOMPRESSION_FAILURE, 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We hit our prenegotiated (or default) timeout 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CONNECTION_TIMED_OUT, 32390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error encountered migrating addresses 32490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_ERROR_MIGRATING_ADDRESS, 32590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error while writing the packet. 32690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_PACKET_WRITE_ERROR, 32790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Crypto errors. 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 33190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Hanshake failed. 33290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QUIC_HANDSHAKE_FAILED, 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained out of order tags. 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_TAGS_OUT_OF_ORDER, 3352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Handshake message contained too many entries. 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_ENTRIES, 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained an invalid value length. 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_INVALID_VALUE_LENGTH, 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A crypto message was received after the handshake was complete. 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, 3412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal message tag. 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_TYPE, 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal parameter. 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER, 3452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a mandatory parameter missing. 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND, 3472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a parameter that has no overlap 3482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // with the local parameter. 3492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP, 3502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received that contained a parameter with too few 3512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // values. 3522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND, 353c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // An internal error occured in crypto processing. 354c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_INTERNAL_ERROR, 355c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto handshake message specified an unsupported version. 356c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_VERSION_NOT_SUPPORTED, 357c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There was no intersection between the crypto primitives supported by the 358c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // peer and ourselves. 359c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_NO_SUPPORT, 360c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The server rejected our client hello messages too many times. 361c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_TOO_MANY_REJECTS, 362c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The client rejected the server's certificate chain or signature. 363c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_PROOF_INVALID, 364c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto message was received with a duplicate tag. 365c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_CRYPTO_DUPLICATE_TAG, 366b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // A crypto message was received with the wrong encryption level (i.e. it 367b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // should have been encrypted but was not.) 368b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT, 369b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The server config for a server has expired. 370b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QUIC_CRYPTO_SERVER_CONFIG_EXPIRED, 371c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 372c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 373c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_LAST_ERROR, 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketPublicHeader { 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader(); 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPacketPublicHeader(const QuicPacketPublicHeader& other); 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicPacketPublicHeader(); 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader& operator=(const QuicPacketPublicHeader& other); 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Universal header. All QuicPacket headers will have a guid and public flags. 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicGuid guid; 385868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length; 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool reset_flag; 3872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool version_flag; 388868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length; 389558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QuicVersionVector versions; 3902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 3912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Header for Data or FEC packets. 393c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketHeader { 394c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicPacketHeader(); 395c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) explicit QuicPacketHeader(const QuicPacketPublicHeader& header); 3962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 3982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicPacketHeader& s); 3992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fec_flag; 4022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool entropy_flag; 4032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber packet_sequence_number; 405868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group; 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 409c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPublicResetPacket { 4102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetPacket() {} 4112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPublicResetPacket(const QuicPacketPublicHeader& header) 4122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public_header(header) {} 4132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 4142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber rejected_sequence_number; 4152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetNonceProof nonce_proof; 4162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicVersionNegotiationState { 4192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) START_NEGOTIATION = 0, 4202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SENT_NEGOTIATION_PACKET, 4212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NEGOTIATED_VERSION 4222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketPublicHeader QuicVersionNegotiationPacket; 4252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A padding frame contains no payload. 4272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPaddingFrame { 4282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicStreamFrame { 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(); 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(QuicStreamId stream_id, 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin, 4342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset, 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data); 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin; 4392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset; // Location of this data in the stream. 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece data; 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(ianswett): Re-evaluate the trade-offs of hash_set vs set when framing 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// is finalized. 4452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::set<QuicPacketSequenceNumber> SequenceNumberSet; 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(pwestin): Add a way to enforce the max size of this map. 4472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::map<QuicPacketSequenceNumber, QuicTime> TimeMap; 4482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE ReceivedPacketInfo { 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReceivedPacketInfo(); 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~ReceivedPacketInfo(); 4522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const ReceivedPacketInfo& s); 4542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to largest observed not including missing 4562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packets. 4572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 4582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The highest packet sequence number we've observed from the peer. 4602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // 4612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // In general, this should be the largest packet number we've received. In 4622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the case of truncated acks, we may have to advertise a lower "upper bound" 4632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // than largest received, to avoid implicitly acking missing packets that 4642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // don't fit in the missing packet list due to size limitations. In this 4652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // case, largest_observed may be a packet which is also in the missing packets 4662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // list. 4672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber largest_observed; 4682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Time elapsed since largest_observed was received until this Ack frame was 4702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // sent. 4712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime::Delta delta_time_largest_observed; 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(satyamshekhar): Can be optimized using an interval set like data 4742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // structure. 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The set of packets which we're expecting and have not received. 4762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SequenceNumberSet missing_packets; 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// True if the sequence number is greater than largest_observed or is listed 4802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// as missing. 4812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Always returns false for sequence numbers less than least_unacked. 4822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool NET_EXPORT_PRIVATE IsAwaitingPacket( 4832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ReceivedPacketInfo& received_info, 4842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number); 4852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Inserts missing packets between [lower, higher). 4872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NET_EXPORT_PRIVATE InsertMissingPacketsBetween( 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo* received_info, 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber lower, 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber higher); 4912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE SentPacketInfo { 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SentPacketInfo(); 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~SentPacketInfo(); 4952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 4962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const SentPacketInfo& s); 4972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to, but not including, the least unacked 4992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packet. 5002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The lowest packet we've sent which is unacked, and we expect an ack for. 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber least_unacked; 5032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicAckFrame { 5062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame() {} 5072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Testing convenience method to construct a QuicAckFrame with all packets 5082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from least_unacked to largest_observed acked. 5092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame(QuicPacketSequenceNumber largest_observed, 5102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime largest_observed_receive_time, 5112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber least_unacked); 5122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicAckFrame& s); 5152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SentPacketInfo sent_info; 5172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo received_info; 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Defines for all types of congestion feedback that will be negotiated in QUIC, 5217dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// kTCP MUST be supported by all QUIC implementations to guarantee 100% 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// compatibility. 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum CongestionFeedbackType { 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kTCP, // Used to mimic TCP. 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kInterArrival, // Use additional inter arrival information. 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kFixRate, // Provided for testing. 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageTCP { 5305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 5312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicByteCount receive_window; 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageInterArrival { 5352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival(); 5362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~CongestionFeedbackMessageInterArrival(); 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16 accumulated_number_of_lost_packets; 5382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The set of received packets since the last feedback was sent, along with 5392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // their arrival times. 5402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TimeMap received_packet_times; 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageFixRate { 5442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate(); 5452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicBandwidth bitrate; 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicCongestionFeedbackFrame { 5492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame(); 5502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicCongestionFeedbackFrame(); 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicCongestionFeedbackFrame& c); 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackType type; 5562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This should really be a union, but since the inter arrival struct 5572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // is non-trivial, C++ prohibits it. 5582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageTCP tcp; 5592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival inter_arrival; 5602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate fix_rate; 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicRstStreamFrame { 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame() {} 565c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamFrame(QuicStreamId stream_id, QuicRstStreamErrorCode error_code) 5662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : stream_id(stream_id), error_code(error_code) { 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_LE(error_code, std::numeric_limits<uint8>::max()); 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 571c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamErrorCode error_code; 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicConnectionCloseFrame { 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicErrorCode error_code; 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 5782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame ack_frame; 5792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicGoAwayFrame { 5822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame() {} 5832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame(QuicErrorCode error_code, 5842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id, 5852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& reason); 5862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicErrorCode error_code; 5882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id; 5892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string reason_phrase; 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 592c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// EncryptionLevel enumerates the stages of encryption that a QUIC connection 593c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// progresses through. When retransmitting a packet, the encryption level needs 594c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to be specified so that it is retransmitted at a level which the peer can 595c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// understand. 596c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum EncryptionLevel { 597c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_NONE = 0, 598c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_INITIAL = 1, 599c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_FORWARD_SECURE = 2, 600c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 601c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NUM_ENCRYPTION_LEVELS, 602c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 603c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFrame { 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrame() {} 6062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicPaddingFrame* padding_frame) 6072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(PADDING_FRAME), 6082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) padding_frame(padding_frame) { 6092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicStreamFrame* stream_frame) 6112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(STREAM_FRAME), 6122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) stream_frame(stream_frame) { 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicAckFrame* frame) 6152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(ACK_FRAME), 6162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ack_frame(frame) { 6172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicCongestionFeedbackFrame* frame) 6192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(CONGESTION_FEEDBACK_FRAME), 6202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) congestion_feedback_frame(frame) { 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicRstStreamFrame* frame) 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(RST_STREAM_FRAME), 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rst_stream_frame(frame) { 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit QuicFrame(QuicConnectionCloseFrame* frame) 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : type(CONNECTION_CLOSE_FRAME), 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) connection_close_frame(frame) { 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicFrame(QuicGoAwayFrame* frame) 6312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : type(GOAWAY_FRAME), 6322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_frame(frame) { 6332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrameType type; 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) union { 6372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPaddingFrame* padding_frame; 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame* stream_frame; 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicAckFrame* ack_frame; 6402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame* congestion_feedback_frame; 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame* rst_stream_frame; 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicConnectionCloseFrame* connection_close_frame; 6432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame* goaway_frame; 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef std::vector<QuicFrame> QuicFrames; 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFecData { 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecData(); 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The FEC group number is also the sequence number of the first 6532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // FEC protected packet. The last protected packet's sequence number will 6542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // be one less than the sequence number of the FEC packet. 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece redundancy; 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketData { 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string data; 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicData { 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(const char* buffer, size_t length) 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 6682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(false) {} 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicData(char* buffer, size_t length, bool owns_buffer) 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : buffer_(buffer), 6725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length_(length), 6732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owns_buffer_(owns_buffer) {} 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~QuicData(); 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece AsStringPiece() const { 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::StringPiece(data(), length()); 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* data() const { return buffer_; } 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length() const { return length_; } 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* buffer_; 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length_; 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool owns_buffer_; 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicData); 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicPacket : public QuicData { 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 694868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewDataPacket( 695868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 696868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 697868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 698868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 699868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 700868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 701868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, guid_length, 702868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, false); 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewFecPacket( 706868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 707868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 708868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 709868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 710868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 711868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 712868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, guid_length, 713868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, true); 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece FecProtectedData() const; 7172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece AssociatedData() const; 7182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece BeforePlaintext() const; 7192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece Plaintext() const; 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet() const { return is_fec_packet_; } 7222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version() const { return includes_version_; } 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* mutable_data() { return buffer_; } 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 7282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket(char* buffer, 7292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 7302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 731868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicGuidLength guid_length, 7322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version, 733868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 7342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet) 7352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer), 7362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) buffer_(buffer), 7372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_fec_packet_(is_fec_packet), 738868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) guid_length_(guid_length), 739868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version_(includes_version), 740868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) sequence_number_length_(sequence_number_length) {} 7412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer_; 7432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool is_fec_packet_; 744868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const QuicGuidLength guid_length_; 7452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool includes_version_; 746868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const QuicSequenceNumberLength sequence_number_length_; 7475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicPacket); 7495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicEncryptedPacket : public QuicData { 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 7535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(const char* buffer, size_t length) 7542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length) {} 7555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicEncryptedPacket(char* buffer, size_t length, bool owns_buffer) 7572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : QuicData(buffer, length, owns_buffer) {} 7585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 7602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member (in the base class QuicData) causes this object to have padding 7612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // bytes, which causes the default gtest object printer to read 7622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // uninitialize memory. So we need to teach gtest how to print this object. 7632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicEncryptedPacket& s); 7655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 7675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicEncryptedPacket); 7685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NET_EXPORT_PRIVATE RetransmittableFrames { 7712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 7722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames(); 7732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~RetransmittableFrames(); 7742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Allocates a local copy of the referenced StringPiece has QuicStreamFrame 7762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // use it. 7772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of |stream_frame|. 7782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddStreamFrame(QuicStreamFrame* stream_frame); 7792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of the frame inside |frame|. 7802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddNonStreamFrame(const QuicFrame& frame); 7812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrames& frames() const { return frames_; } 7822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 783c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void set_encryption_level(EncryptionLevel level); 784c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level() const { 785c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return encryption_level_; 786c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 787c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 7882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 7892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicFrames frames_; 790c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level_; 7912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Data referenced by the StringPiece of a QuicStreamFrame. 7922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string*> stream_data_; 7932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RetransmittableFrames); 7952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 7962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE SerializedPacket { 7982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SerializedPacket(QuicPacketSequenceNumber sequence_number, 7992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet, 8002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash, 8012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames) 8022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : sequence_number(sequence_number), 8032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) packet(packet), 8042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) entropy_hash(entropy_hash), 8052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) retransmittable_frames(retransmittable_frames) {} 8062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number; 8082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet; 8092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 8102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames; 8112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 8122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A struct for functions which consume data payloads and fins. 8142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// The first member of the pair indicates bytes consumed. 8152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// The second member of the pair indicates if an incoming fin was consumed. 8162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct QuicConsumedData { 8172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicConsumedData(size_t bytes_consumed, bool fin_consumed) 8182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : bytes_consumed(bytes_consumed), 8192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) fin_consumed(fin_consumed) {} 8202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 8222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member causes this object to have padding bytes, which causes the 8232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // default gtest object printer to read uninitialize memory. So we need 8242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // to teach gtest how to print this object. 8252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 8262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicConsumedData& s); 8272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t bytes_consumed; 8292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fin_consumed; 8302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 8312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 8335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // NET_QUIC_QUIC_PROTOCOL_H_ 835