quic_protocol.h revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9
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" 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "net/base/ip_endpoint.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_export.h" 24f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "net/quic/iovector.h" 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/quic/quic_bandwidth.h" 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/quic/quic_time.h" 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)using ::operator<<; 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)class QuicAckNotifier; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class QuicPacket; 34868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)struct QuicPacketHeader; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 36a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)typedef uint64 QuicConnectionId; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32 QuicStreamId; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicStreamOffset; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint64 QuicPacketSequenceNumber; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketSequenceNumber QuicFecGroupNumber; 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint64 QuicPublicResetNonceProof; 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef uint8 QuicPacketEntropyHash; 43b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicHeaderId; 44b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// QuicTag is the type of a tag in the wire protocol. 45b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef uint32 QuicTag; 46b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)typedef std::vector<QuicTag> QuicTagVector; 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)typedef std::map<QuicTag, std::string> QuicTagValueMap; 485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(rtenneti): Didn't use SpdyPriority because SpdyPriority is uint8 and 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// QuicPriority is uint32. Use SpdyPriority when we change the QUIC_VERSION. 50424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)typedef uint32 QuicPriority; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(rch): Consider Quic specific names for these constants. 530f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Default and initial maximum size in bytes of a QUIC packet. 540f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const QuicByteCount kDefaultMaxPacketSize = 1200; 550f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// The maximum packet size of any QUIC packet, based on ethernet's max size, 56a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// minus the IP and UDP headers. IPv6 has a 40 byte header, UPD adds an 57a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// additional 8 bytes. This is a total overhead of 48 bytes. Ethernet's 58a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// max packet size is 1500 bytes, 1500 - 48 = 1452. 59a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)const QuicByteCount kMaxPacketSize = 1452; 600f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 610f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Maximum size of the initial congestion window in packets. 620f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)const size_t kDefaultInitialWindow = 10; 63a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)const size_t kMaxInitialWindow = 100; 640f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 65f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Maximum size of the congestion window, in packets, for TCP congestion control 66f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// algorithms. 67f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)const size_t kMaxTcpCongestionWindow = 200; 68f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 690f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Don't allow a client to suggest an RTT longer than 15 seconds. 70f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)const size_t kMaxInitialRoundTripTimeUs = 15 * kNumMicrosPerSecond; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Maximum number of open streams per connection. 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const size_t kDefaultMaxStreamsPerConnection = 100; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for public flags in the packet header. 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicFlagsSize = 1; 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for version number in the packet header. 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kQuicVersionSize = 4; 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for private flags in the packet header. 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPrivateFlagsSize = 1; 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for FEC group in the packet header. 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kFecGroupSize = 1; 835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(wtc): remove this when we drop support for QUIC_VERSION_13. 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Number of bytes reserved for the nonce proof in public reset packet. 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kPublicResetNonceSize = 8; 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Signifies that the QuicPacket will contain version of the protocol. 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const bool kIncludeVersion = true; 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Index of the first byte in a QUIC packet which is used in hash calculation. 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kStartOfHashData = 0; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Limit on the delta between stream IDs. 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kMaxStreamIdDelta = 100; 95b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)// Limit on the delta between header IDs. 96b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)const QuicHeaderId kMaxHeaderIdDelta = 100; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Reserved ID for the crypto stream. 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const QuicStreamId kCryptoStreamId = 1; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Reserved ID for the headers stream. 1025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)const QuicStreamId kHeadersStreamId = 3; 1035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 10490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// This is the default network timeout a for connection till the crypto 10590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// handshake succeeds and the negotiated timeout from the handshake is received. 106868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultInitialTimeoutSecs = 120; // 2 mins. 10790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)const int64 kDefaultTimeoutSecs = 60 * 10; // 10 minutes. 108868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)const int64 kDefaultMaxTimeForCryptoHandshakeSecs = 5; // 5 secs. 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1101e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// We define an unsigned 16-bit floating point value, inspired by IEEE floats 1111e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// (http://en.wikipedia.org/wiki/Half_precision_floating-point_format), 1121e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// with 5-bit exponent (bias 1), 11-bit mantissa (effective 12 with hidden 1131e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// bit) and denormals, but without signs, transfinites or fractions. Wire format 1141e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// 16 bits (little-endian byte order) are split into exponent (high 5) and 1151e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// mantissa (low 11) and decoded as: 1161e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// uint64 value; 1171e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// if (exponent == 0) value = mantissa; 1181e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// else value = (mantissa | 1 << 11) << (exponent - 1) 1191e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)const int kUFloat16ExponentBits = 5; 1201e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)const int kUFloat16MaxExponent = (1 << kUFloat16ExponentBits) - 2; // 30 1211e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)const int kUFloat16MantissaBits = 16 - kUFloat16ExponentBits; // 11 1221e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)const int kUFloat16MantissaEffectiveBits = kUFloat16MantissaBits + 1; // 12 1231e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)const uint64 kUFloat16MaxValue = // 0x3FFC0000000 1241e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) ((GG_UINT64_C(1) << kUFloat16MantissaEffectiveBits) - 1) << 1251e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) kUFloat16MaxExponent; 1261e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 12768043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles)enum TransmissionType { 128b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NOT_RETRANSMISSION, 12968043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) NACK_RETRANSMISSION, 13068043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) RTO_RETRANSMISSION, 1315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) TLP_RETRANSMISSION, 132c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 133c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 134a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)enum RetransmissionType { 135a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) INITIAL_ENCRYPTION_ONLY, 136a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) ALL_PACKETS 137a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)}; 138a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 139c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum HasRetransmittableData { 140b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) NO_RETRANSMITTABLE_DATA, 141b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) HAS_RETRANSMITTABLE_DATA, 142c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 143c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 144a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)enum IsHandshake { 145a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) NOT_HANDSHAKE, 146a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) IS_HANDSHAKE 147a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)}; 148a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum QuicFrameType { 1505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Regular frame types. The values set here cannot change without the 1515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // introduction of a new QUIC version. 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PADDING_FRAME = 0, 1535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) RST_STREAM_FRAME = 1, 1545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) CONNECTION_CLOSE_FRAME = 2, 1555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GOAWAY_FRAME = 3, 1565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) WINDOW_UPDATE_FRAME = 4, 1575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) BLOCKED_FRAME = 5, 158a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) STOP_WAITING_FRAME = 6, 1595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // STREAM, ACK, and CONGESTION_FEEDBACK frames are special frames. They are 1615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // encoded differently on the wire and their values do not need to be stable. 16258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) STREAM_FRAME, 16358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ACK_FRAME, 16458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) CONGESTION_FEEDBACK_FRAME, 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NUM_FRAME_TYPES 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 168a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)enum QuicConnectionIdLength { 169a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_0BYTE_CONNECTION_ID = 0, 170a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_1BYTE_CONNECTION_ID = 1, 171a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_4BYTE_CONNECTION_ID = 4, 172a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_8BYTE_CONNECTION_ID = 8 173868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 174868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 175868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum InFecGroup { 176868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) NOT_IN_FEC_GROUP, 177868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) IN_FEC_GROUP, 178868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 179868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 180868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum QuicSequenceNumberLength { 181868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_1BYTE_SEQUENCE_NUMBER = 1, 182868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_2BYTE_SEQUENCE_NUMBER = 2, 183868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_4BYTE_SEQUENCE_NUMBER = 4, 184868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_6BYTE_SEQUENCE_NUMBER = 6 185868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 186868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1870f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)// Used to indicate a QuicSequenceNumberLength using two flag bits. 1880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)enum QuicSequenceNumberLengthFlags { 1890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_FLAGS_1BYTE_SEQUENCE = 0, // 00 1900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_FLAGS_2BYTE_SEQUENCE = 1, // 01 1910f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_FLAGS_4BYTE_SEQUENCE = 1 << 1, // 10 1920f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_FLAGS_6BYTE_SEQUENCE = 1 << 1 | 1, // 11 1930f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)}; 1940f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 1957dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The public flags are specified in one byte. 1962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPublicFlags { 1972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PUBLIC_FLAGS_NONE = 0, 1987dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 1997dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does the packet header contains version info? 2007dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_VERSION = 1 << 0, 2017dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2027dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Is this packet a public reset packet? 2037dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_RST = 1 << 1, 2047dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 205a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // Bits 2 and 3 specify the length of the ConnectionId as follows: 2067dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----00--: 0 bytes 2077dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----01--: 1 byte 2087dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----10--: 4 bytes 2097dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // ----11--: 8 bytes 210a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_PUBLIC_FLAGS_0BYTE_CONNECTION_ID = 0, 211a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_CONNECTION_ID = 1 << 2, 212a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_CONNECTION_ID = 1 << 3, 213a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) PACKET_PUBLIC_FLAGS_8BYTE_CONNECTION_ID = 1 << 3 | 1 << 2, 2147dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2157dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bits 4 and 5 describe the packet sequence number length as follows: 2167dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --00----: 1 byte 2177dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --01----: 2 bytes 2187dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --10----: 4 bytes 2197dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // --11----: 6 bytes 2200f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_PUBLIC_FLAGS_1BYTE_SEQUENCE = PACKET_FLAGS_1BYTE_SEQUENCE << 4, 2210f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_PUBLIC_FLAGS_2BYTE_SEQUENCE = PACKET_FLAGS_2BYTE_SEQUENCE << 4, 2220f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_PUBLIC_FLAGS_4BYTE_SEQUENCE = PACKET_FLAGS_4BYTE_SEQUENCE << 4, 2230f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) PACKET_PUBLIC_FLAGS_6BYTE_SEQUENCE = PACKET_FLAGS_6BYTE_SEQUENCE << 4, 2247dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2257dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 6 and 7 are not currently used): 00111111 2267dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PUBLIC_FLAGS_MAX = (1 << 6) - 1 2272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2297dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// The private flags are specified in one byte. 2302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicPacketPrivateFlags { 2312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PACKET_PRIVATE_FLAGS_NONE = 0, 2327dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2337dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 0: Does this packet contain an entropy bit? 234868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PACKET_PRIVATE_FLAGS_ENTROPY = 1 << 0, 2357dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2367dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 1: Payload is part of an FEC group? 2377dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC_GROUP = 1 << 1, 2387dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2397dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Bit 2: Payload is FEC as opposed to frames? 2407dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_FEC = 1 << 2, 2417dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // All bits set (bits 3-7 are not currently used): 00000111 2437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch PACKET_PRIVATE_FLAGS_MAX = (1 << 3) - 1 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 246558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// The available versions of QUIC. Guaranteed that the integer value of the enum 247558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// will match the version number. 248558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// When adding a new version to this enum you should add it to 249ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// kSupportedQuicVersions (if appropriate), and also add a new case to the 250ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and 251ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch// QuicVersionToString. 252558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochenum QuicVersion { 253558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // Special case to indicate unknown/unsupported QUIC version. 254558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QUIC_VERSION_UNSUPPORTED = 0, 255558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 2565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QUIC_VERSION_13 = 13, 257a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_VERSION_15 = 15, 258a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_VERSION_16 = 16, // Current version. 259558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch}; 260558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 261558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This vector contains QUIC versions which we currently support. 262558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This should be ordered such that the highest supported version is the first 263558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// element, with subsequent elements in descending order (versions can be 264558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// skipped as necessary). 265f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// 266f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// IMPORTANT: if you are addding to this list, follow the instructions at 267f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// http://sites/quic/adding-and-removing-versions 268a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)static const QuicVersion kSupportedQuicVersions[] = {QUIC_VERSION_16, 269a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_VERSION_15, 270a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_VERSION_13}; 271558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 272558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochtypedef std::vector<QuicVersion> QuicVersionVector; 273558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 2741e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// Returns a vector of QUIC versions in kSupportedQuicVersions. 2751e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)NET_EXPORT_PRIVATE QuicVersionVector QuicSupportedVersions(); 276c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch 277558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// QuicTag is written to and read from the wire, but we prefer to use 278558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the more readable QuicVersion at other levels. 279558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a QuicTag. Returns 0 280558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// if QuicVersion is unsupported. 281558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag QuicVersionToQuicTag(const QuicVersion version); 282558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 283558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns appropriate QuicVersion from a QuicTag. 284558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns QUIC_VERSION_UNSUPPORTED if version_tag cannot be understood. 285558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicVersion QuicTagToQuicVersion(const QuicTag version_tag); 286558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 287558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Helper function which translates from a QuicVersion to a string. 288558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns strings corresponding to enum names (e.g. QUIC_VERSION_6). 289558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE std::string QuicVersionToString(const QuicVersion version); 290558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 291558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Returns comma separated list of string representations of QuicVersion enum 2921e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// values in the supplied |versions| vector. 2931e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)NET_EXPORT_PRIVATE std::string QuicVersionVectorToString( 2941e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const QuicVersionVector& versions); 295558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 296558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// Version and Crypto tags are written to the wire with a big-endian 297558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// representation of the name of the tag. For example 298558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// the client hello tag (CHLO) will be written as the 299558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// following 4 bytes: 'C' 'H' 'L' 'O'. Since it is 300558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// stored in memory as a little endian uint32, we need 301558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// to reverse the order of the bytes. 302558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 303558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag returns a value given the four bytes. For example: 304558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// MakeQuicTag('C', 'H', 'L', 'O'); 305558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochNET_EXPORT_PRIVATE QuicTag MakeQuicTag(char a, char b, char c, char d); 306558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 307868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Size in bytes of the data or fec packet header. 3085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(const QuicPacketHeader& header); 309868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 310868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetPacketHeaderSize( 311a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 312868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 313868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 314868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group); 315868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 316868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of FEC protected data. 317868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfFecProtectedData( 318a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 319868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 320868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 321868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Index of the first byte in a QUIC packet of encrypted data. 322868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)NET_EXPORT_PRIVATE size_t GetStartOfEncryptedData( 323a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 324868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool include_version, 325868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length); 326868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 327c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicRstStreamErrorCode { 328c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_NO_ERROR = 0, 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 330d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // There was some error which halted stream processing. 331d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) QUIC_ERROR_PROCESSING_STREAM, 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got two fin or reset offsets which did not match. 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_MULTIPLE_TERMINATION_OFFSETS, 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We got bad payload and can not respond to it at the protocol level. 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QUIC_BAD_APPLICATION_PAYLOAD, 336c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Stream closed due to connection error. No reset frame is sent when this 337c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // happens. 338c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_CONNECTION_ERROR, 339c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // GoAway frame sent. No more stream can be created. 340c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_PEER_GOING_AWAY, 341424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // The stream has been cancelled. 342424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) QUIC_STREAM_CANCELLED, 343c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 344c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 345c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_STREAM_LAST_ERROR, 346c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3483551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// These values must remain stable as they are uploaded to UMA histograms. 3493551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// To add a new error code, use the current value of QUIC_LAST_ERROR and 3503551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// increment QUIC_LAST_ERROR. 351c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum QuicErrorCode { 352c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QUIC_NO_ERROR = 0, 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 354c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Connection has reached an invalid state. 3553551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INTERNAL_ERROR = 1, 356c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There were data frames after the a fin or reset. 3573551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_STREAM_DATA_AFTER_TERMINATION = 2, 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Control frame is malformed. 3593551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_PACKET_HEADER = 3, 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Frame data is malformed. 3613551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_FRAME_DATA = 4, 3623551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // The packet contained no payload. 3633551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_MISSING_PAYLOAD = 48, 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FEC data is malformed. 3653551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_FEC_DATA = 5, 3663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // STREAM frame data is malformed. 3673551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_STREAM_DATA = 46, 3683551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // RST_STREAM frame data is malformed. 3693551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_RST_STREAM_DATA = 6, 3703551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // CONNECTION_CLOSE frame data is malformed. 3713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CONNECTION_CLOSE_DATA = 7, 3723551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // GOAWAY frame data is malformed. 3733551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_GOAWAY_DATA = 8, 3745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // WINDOW_UPDATE frame data is malformed. 3755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QUIC_INVALID_WINDOW_UPDATE_DATA = 57, 3765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // BLOCKED frame data is malformed. 3775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QUIC_INVALID_BLOCKED_DATA = 58, 378a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // STOP_WAITING frame data is malformed. 379a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_INVALID_STOP_WAITING_DATA = 60, 3803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // ACK frame data is malformed. 3813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_ACK_DATA = 9, 3823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // CONGESTION_FEEDBACK frame data is malformed. 3833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CONGESTION_FEEDBACK_DATA = 47, 3842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Version negotiation packet is malformed. 3853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_VERSION_NEGOTIATION_PACKET = 10, 38690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Public RST packet is malformed. 3873551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_PUBLIC_RST_PACKET = 11, 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error decrypting. 3893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_DECRYPTION_FAILURE = 12, 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There was an error encrypting. 3913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_ENCRYPTION_FAILURE = 13, 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The packet exceeded kMaxPacketSize. 3933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_TOO_LARGE = 14, 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Data was sent for a stream which did not exist. 3953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_FOR_NONEXISTENT_STREAM = 15, 3962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The peer is going away. May be a client or server. 3973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PEER_GOING_AWAY = 16, 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A stream ID was invalid. 3993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_STREAM_ID = 17, 400d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // A priority was invalid. 401d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) QUIC_INVALID_PRIORITY = 49, 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Too many streams already open. 4033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_TOO_MANY_OPEN_STREAMS = 18, 4042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Received public reset for this connection. 4053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PUBLIC_RESET = 19, 406b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // Invalid protocol version. 4073551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_VERSION = 20, 408a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 409a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // deprecated: QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED = 21 410a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 411b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The Header ID for a stream was too far from the previous. 4123551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_HEADER_ID = 22, 41390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Negotiable parameter received during handshake had invalid value. 4143551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_NEGOTIATED_VALUE = 23, 41590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error decompressing data. 4163551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_DECOMPRESSION_FAILURE = 24, 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We hit our prenegotiated (or default) timeout 4183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CONNECTION_TIMED_OUT = 25, 41990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // There was an error encountered migrating addresses 4203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_ERROR_MIGRATING_ADDRESS = 26, 42158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // There was an error while writing to the socket. 4223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PACKET_WRITE_ERROR = 27, 42358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // There was an error while reading from the socket. 42458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QUIC_PACKET_READ_ERROR = 51, 425d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // We received a STREAM_FRAME with no data and no fin flag set. 426d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) QUIC_INVALID_STREAM_FRAME = 50, 4275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // We received invalid data on the headers stream. 4285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QUIC_INVALID_HEADERS_STREAM_DATA = 56, 4295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // The peer violated the flow control protocol. 4305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QUIC_FLOW_CONTROL_ERROR = 59, 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Crypto errors. 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 43490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Hanshake failed. 4353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_HANDSHAKE_FAILED = 28, 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained out of order tags. 4373551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TAGS_OUT_OF_ORDER = 29, 4382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Handshake message contained too many entries. 4393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_ENTRIES = 30, 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handshake message contained an invalid value length. 4413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_INVALID_VALUE_LENGTH = 31, 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A crypto message was received after the handshake was complete. 4433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE = 32, 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal message tag. 4453551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_TYPE = 33, 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with an illegal parameter. 4473551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER = 34, 4484e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // An invalid channel id signature was supplied. 4494e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) QUIC_INVALID_CHANNEL_ID_SIGNATURE = 52, 4502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a mandatory parameter missing. 4513551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND = 35, 4522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received with a parameter that has no overlap 4532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // with the local parameter. 4543551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP = 36, 4552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // A crypto message was received that contained a parameter with too few 4562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // values. 4573551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND = 37, 458c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // An internal error occured in crypto processing. 4593551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_INTERNAL_ERROR = 38, 460c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto handshake message specified an unsupported version. 4613551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_VERSION_NOT_SUPPORTED = 39, 462c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // There was no intersection between the crypto primitives supported by the 463c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // peer and ourselves. 4643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_NO_SUPPORT = 40, 465c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The server rejected our client hello messages too many times. 4663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_TOO_MANY_REJECTS = 41, 467c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The client rejected the server's certificate chain or signature. 4683551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_PROOF_INVALID = 42, 469c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // A crypto message was received with a duplicate tag. 4703551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_DUPLICATE_TAG = 43, 471b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // A crypto message was received with the wrong encryption level (i.e. it 472b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // should have been encrypted but was not.) 4733551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT = 44, 474b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) // The server config for a server has expired. 4753551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QUIC_CRYPTO_SERVER_CONFIG_EXPIRED = 45, 4764e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // We failed to setup the symmetric keys for a connection. 4774e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED = 53, 478f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // A handshake message arrived, but we are still validating the 479f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // previous handshake message. 480f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO = 54, 481f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // This connection involved a version negotiation which appears to have been 482f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // tampered with. 483f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) QUIC_VERSION_NEGOTIATION_MISMATCH = 55, 484c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 485c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // No error. Used as bound while iterating. 486a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QUIC_LAST_ERROR = 61, 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketPublicHeader { 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader(); 4912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit QuicPacketPublicHeader(const QuicPacketPublicHeader& other); 4922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicPacketPublicHeader(); 4932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 494a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // Universal header. All QuicPacket headers will have a connection_id and 495a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // public flags. 496a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionId connection_id; 497a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length; 4982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool reset_flag; 4992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool version_flag; 500868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length; 501558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch QuicVersionVector versions; 5022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Header for Data or FEC packets. 505c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPacketHeader { 506c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicPacketHeader(); 507c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) explicit QuicPacketHeader(const QuicPacketPublicHeader& header); 5082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicPacketHeader& s); 5112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 5132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fec_flag; 5142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool entropy_flag; 5152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber packet_sequence_number; 517868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) InFecGroup is_in_fec_group; 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 521c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPublicResetPacket { 5225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicPublicResetPacket(); 5235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicPublicResetPacket(const QuicPacketPublicHeader& header); 5245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketPublicHeader public_header; 5262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPublicResetNonceProof nonce_proof; 5275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicPacketSequenceNumber rejected_sequence_number; 5285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) IPEndPoint client_address; 5292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum QuicVersionNegotiationState { 5322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) START_NEGOTIATION = 0, 533ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // Server-side this implies we've sent a version negotiation packet and are 534ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // waiting on the client to select a compatible version. Client-side this 535ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // implies we've gotten a version negotiation packet, are retransmitting the 536ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // initial packets with a supported version and are waiting for our first 537ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // packet from the server. 538ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch NEGOTIATION_IN_PROGRESS, 539ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // This indicates this endpoint has received a packet from the peer with a 540ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // version this endpoint supports. Version negotiation is complete, and the 541ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch // version number will no longer be sent with future packets. 5422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NEGOTIATED_VERSION 5432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef QuicPacketPublicHeader QuicVersionNegotiationPacket; 5462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A padding frame contains no payload. 5482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicPaddingFrame { 5492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 5502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicStreamFrame { 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(); 553f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) QuicStreamFrame(const QuicStreamFrame& frame); 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame(QuicStreamId stream_id, 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin, 5562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset, 557f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) IOVector data); 558f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 5595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicStreamFrame& s); 5615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 562f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Returns a copy of the IOVector |data| as a heap-allocated string. 563f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Caller must take ownership of the returned string. 564f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) std::string* GetDataAsString() const; 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool fin; 5682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset; // Location of this data in the stream. 569f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) IOVector data; 57058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 57158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // If this is set, then when this packet is ACKed the AckNotifier will be 57258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // informed. 57358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QuicAckNotifier* notifier; 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(ianswett): Re-evaluate the trade-offs of hash_set vs set when framing 5772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// is finalized. 5782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::set<QuicPacketSequenceNumber> SequenceNumberSet; 5792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(pwestin): Add a way to enforce the max size of this map. 5802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef std::map<QuicPacketSequenceNumber, QuicTime> TimeMap; 5812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE ReceivedPacketInfo { 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReceivedPacketInfo(); 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~ReceivedPacketInfo(); 5855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 5872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const ReceivedPacketInfo& s); 5882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to largest observed not including missing 5902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packets. 5912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 5922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The highest packet sequence number we've observed from the peer. 5942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // 5952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // In general, this should be the largest packet number we've received. In 5962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the case of truncated acks, we may have to advertise a lower "upper bound" 5972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // than largest received, to avoid implicitly acking missing packets that 5982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // don't fit in the missing packet list due to size limitations. In this 5992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // case, largest_observed may be a packet which is also in the missing packets 6002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // list. 6012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber largest_observed; 6022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Time elapsed since largest_observed was received until this Ack frame was 6042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // sent. 6052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime::Delta delta_time_largest_observed; 6062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(satyamshekhar): Can be optimized using an interval set like data 6082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // structure. 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The set of packets which we're expecting and have not received. 6102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SequenceNumberSet missing_packets; 6110f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) 6120f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) // Whether the ack had to be truncated when sent. 6130f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) bool is_truncated; 6145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Packets which have been revived via FEC. 6165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // All of these must also be in missing_packets. 6175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SequenceNumberSet revived_packets; 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// True if the sequence number is greater than largest_observed or is listed 6212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// as missing. 6222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Always returns false for sequence numbers less than least_unacked. 6232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool NET_EXPORT_PRIVATE IsAwaitingPacket( 6242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ReceivedPacketInfo& received_info, 6252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number); 6262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Inserts missing packets between [lower, higher). 6282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NET_EXPORT_PRIVATE InsertMissingPacketsBetween( 6292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo* received_info, 6302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber lower, 6312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber higher); 6322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 633a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicStopWaitingFrame { 634a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicStopWaitingFrame(); 635a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ~QuicStopWaitingFrame(); 6365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 638a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::ostream& os, const QuicStopWaitingFrame& s); 639a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 6402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Entropy hash of all packets up to, but not including, the least unacked 6412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // packet. 6422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The lowest packet we've sent which is unacked, and we expect an ack for. 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicPacketSequenceNumber least_unacked; 6452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 6462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicAckFrame { 6485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicAckFrame(); 6492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Testing convenience method to construct a QuicAckFrame with all packets 6502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from least_unacked to largest_observed acked. 6512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicAckFrame(QuicPacketSequenceNumber largest_observed, 6522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicTime largest_observed_receive_time, 6532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber least_unacked); 6542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 6562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicAckFrame& s); 6572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 658a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicStopWaitingFrame sent_info; 6592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReceivedPacketInfo received_info; 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Defines for all types of congestion feedback that will be negotiated in QUIC, 6637dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// kTCP MUST be supported by all QUIC implementations to guarantee 100% 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// compatibility. 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)enum CongestionFeedbackType { 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kTCP, // Used to mimic TCP. 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kInterArrival, // Use additional inter arrival information. 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kFixRate, // Provided for testing. 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageTCP { 6725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) CongestionFeedbackMessageTCP(); 6735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicByteCount receive_window; 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageInterArrival { 6782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival(); 6792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~CongestionFeedbackMessageInterArrival(); 6805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The set of received packets since the last feedback was sent, along with 6822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // their arrival times. 6832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TimeMap received_packet_times; 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE CongestionFeedbackMessageFixRate { 6872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate(); 6882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicBandwidth bitrate; 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicCongestionFeedbackFrame { 6922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame(); 6932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~QuicCongestionFeedbackFrame(); 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 6962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicCongestionFeedbackFrame& c); 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackType type; 6992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This should really be a union, but since the inter arrival struct 7002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // is non-trivial, C++ prohibits it. 7012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageTCP tcp; 7022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageInterArrival inter_arrival; 7032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CongestionFeedbackMessageFixRate fix_rate; 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicRstStreamFrame { 7075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicRstStreamFrame(); 7085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicRstStreamFrame(QuicStreamId stream_id, 7095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicRstStreamErrorCode error_code, 7105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicStreamOffset bytes_written); 7115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicRstStreamFrame& r); 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id; 716c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamErrorCode error_code; 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 7185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Used to update flow control windows. On termination of a stream, both 7205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // endpoints must inform the peer of the number of bytes they have sent on 7215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // that stream. This can be done through normal termination (data packet with 7225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // FIN) or through a RST. 7235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicStreamOffset byte_offset; 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicConnectionCloseFrame { 7275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicConnectionCloseFrame(); 7285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicConnectionCloseFrame& c); 7315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicErrorCode error_code; 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_details; 7342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 7352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE QuicGoAwayFrame { 7375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicGoAwayFrame(); 7382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame(QuicErrorCode error_code, 7392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id, 7402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& reason); 7412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicGoAwayFrame& g); 7445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicErrorCode error_code; 7462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamId last_good_stream_id; 7472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string reason_phrase; 7485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 7495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Flow control updates per-stream and at the connection levoel. 7515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Based on SPDY's WINDOW_UPDATE frame, but uses an absolute byte offset rather 7525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// than a window delta. 7535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(rjshade): A possible future optimization is to make stream_id and 7545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// byte_offset variable length, similar to stream frames. 7555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicWindowUpdateFrame { 7565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicWindowUpdateFrame() {} 7575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicWindowUpdateFrame(QuicStreamId stream_id, QuicStreamOffset byte_offset); 7585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicWindowUpdateFrame& w); 7615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // The stream this frame applies to. 0 is a special case meaning the overall 7635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // connection rather than a specific stream. 7645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicStreamId stream_id; 7655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Byte offset in the stream or connection. The receiver of this frame must 7675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // not send data which would result in this offset being exceeded. 7685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicStreamOffset byte_offset; 7695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 7705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// The BLOCKED frame is used to indicate to the remote endpoint that this 7725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// endpoint believes itself to be flow-control blocked but otherwise ready to 7735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// send data. The BLOCKED frame is purely advisory and optional. 7745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Based on SPDY's BLOCKED frame (undocumented as of 2014-01-28). 7755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicBlockedFrame { 7765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicBlockedFrame() {} 7775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicBlockedFrame(QuicStreamId stream_id); 7785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 7805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicBlockedFrame& b); 7815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // The stream this frame applies to. 0 is a special case meaning the overall 7835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // connection rather than a specific stream. 7845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicStreamId stream_id; 7855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 7865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 787c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// EncryptionLevel enumerates the stages of encryption that a QUIC connection 788c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// progresses through. When retransmitting a packet, the encryption level needs 789c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to be specified so that it is retransmitted at a level which the peer can 790c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// understand. 791c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)enum EncryptionLevel { 792c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_NONE = 0, 793c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_INITIAL = 1, 794c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ENCRYPTION_FORWARD_SECURE = 2, 795c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 796c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NUM_ENCRYPTION_LEVELS, 797c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 798c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 7995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFrame { 8005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicFrame(); 8015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicPaddingFrame* padding_frame); 8025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicStreamFrame* stream_frame); 8035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicAckFrame* frame); 8045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicCongestionFeedbackFrame* frame); 8055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicRstStreamFrame* frame); 8065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicConnectionCloseFrame* frame); 807a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) explicit QuicFrame(QuicStopWaitingFrame* frame); 8085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicGoAwayFrame* frame); 8095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicWindowUpdateFrame* frame); 8105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) explicit QuicFrame(QuicBlockedFrame* frame); 8115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 8125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 8135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::ostream& os, const QuicFrame& frame); 8145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFrameType type; 8165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) union { 8172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPaddingFrame* padding_frame; 8185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamFrame* stream_frame; 8195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicAckFrame* ack_frame; 8202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicCongestionFeedbackFrame* congestion_feedback_frame; 821a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicStopWaitingFrame* stop_waiting_frame; 8225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicRstStreamFrame* rst_stream_frame; 8235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicConnectionCloseFrame* connection_close_frame; 8242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicGoAwayFrame* goaway_frame; 8255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicWindowUpdateFrame* window_update_frame; 8265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicBlockedFrame* blocked_frame; 8275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 8285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 8295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef std::vector<QuicFrame> QuicFrames; 8315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicFecData { 8335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecData(); 8345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The FEC group number is also the sequence number of the first 8362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // FEC protected packet. The last protected packet's sequence number will 8372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // be one less than the sequence number of the FEC packet. 8385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicFecGroupNumber fec_group; 8395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece redundancy; 8405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 8415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicData { 8435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 8445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicData(const char* buffer, size_t length); 8455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicData(char* buffer, size_t length, bool owns_buffer); 8465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~QuicData(); 8475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringPiece AsStringPiece() const { 8495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::StringPiece(data(), length()); 8505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* data() const { return buffer_; } 8535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length() const { return length_; } 8545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 8565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* buffer_; 8575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t length_; 8585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool owns_buffer_; 8595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicData); 8615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 8625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicPacket : public QuicData { 8645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 865868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewDataPacket( 866868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 867868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 868868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 869a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 870868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 871868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 872a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, connection_id_length, 873868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, false); 8745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 876868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) static QuicPacket* NewFecPacket( 877868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) char* buffer, 878868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) size_t length, 879868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool owns_buffer, 880a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 881868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool includes_version, 882868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length) { 883a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return new QuicPacket(buffer, length, owns_buffer, connection_id_length, 884868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) includes_version, sequence_number_length, true); 8855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece FecProtectedData() const; 8882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece AssociatedData() const; 8892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece BeforePlaintext() const; 8902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::StringPiece Plaintext() const; 8915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool is_fec_packet() const { return is_fec_packet_; } 8932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 8945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* mutable_data() { return buffer_; } 8955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 8972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket(char* buffer, 8982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t length, 8992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool owns_buffer, 900a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) QuicConnectionIdLength connection_id_length, 9012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool includes_version, 902868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 9035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool is_fec_packet); 9042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer_; 9062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool is_fec_packet_; 907a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const QuicConnectionIdLength connection_id_length_; 9082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const bool includes_version_; 909868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const QuicSequenceNumberLength sequence_number_length_; 9105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicPacket); 9125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 9135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT_PRIVATE QuicEncryptedPacket : public QuicData { 9155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 9165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicEncryptedPacket(const char* buffer, size_t length); 9175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicEncryptedPacket(char* buffer, size_t length, bool owns_buffer); 9185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 919f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Clones the packet into a new packet which owns the buffer. 920f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) QuicEncryptedPacket* Clone() const; 921f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 9222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 9232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member (in the base class QuicData) causes this object to have padding 9242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // bytes, which causes the default gtest object printer to read 9252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // uninitialize memory. So we need to teach gtest how to print this object. 9262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 9272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicEncryptedPacket& s); 9285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 9305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(QuicEncryptedPacket); 9315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 9325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NET_EXPORT_PRIVATE RetransmittableFrames { 9342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 9352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames(); 9362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ~RetransmittableFrames(); 9372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Allocates a local copy of the referenced StringPiece has QuicStreamFrame 9392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // use it. 9402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of |stream_frame|. 9412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddStreamFrame(QuicStreamFrame* stream_frame); 9422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Takes ownership of the frame inside |frame|. 9432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrame& AddNonStreamFrame(const QuicFrame& frame); 9442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicFrames& frames() const { return frames_; } 9452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) IsHandshake HasCryptoHandshake() const; 9475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 948c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void set_encryption_level(EncryptionLevel level); 949c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level() const { 950c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return encryption_level_; 951c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 952c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 9542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicFrames frames_; 955c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) EncryptionLevel encryption_level_; 9562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Data referenced by the StringPiece of a QuicStreamFrame. 9572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string*> stream_data_; 9582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RetransmittableFrames); 9602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 9612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct NET_EXPORT_PRIVATE SerializedPacket { 9632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SerializedPacket(QuicPacketSequenceNumber sequence_number, 9643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length, 9652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet, 9662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash, 96758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) RetransmittableFrames* retransmittable_frames); 96858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ~SerializedPacket(); 9692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketSequenceNumber sequence_number; 9713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) QuicSequenceNumberLength sequence_number_length; 9722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacket* packet; 9732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicPacketEntropyHash entropy_hash; 9742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RetransmittableFrames* retransmittable_frames; 97558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 97658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // If set, these will be called when this packet is ACKed by the peer. 97758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) std::set<QuicAckNotifier*> notifiers; 9782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 9792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A struct for functions which consume data payloads and fins. 9815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)struct NET_EXPORT_PRIVATE QuicConsumedData { 9825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) QuicConsumedData(size_t bytes_consumed, bool fin_consumed); 9835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 9842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // By default, gtest prints the raw bytes of an object. The bool data 9852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // member causes this object to have padding bytes, which causes the 9862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // default gtest object printer to read uninitialize memory. So we need 9872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // to teach gtest how to print this object. 9882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NET_EXPORT_PRIVATE friend std::ostream& operator<<( 9892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::ostream& os, const QuicConsumedData& s); 9902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 99158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // How many bytes were consumed. 9922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t bytes_consumed; 99358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 99458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // True if an incoming fin was consumed. 9952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fin_consumed; 9962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 9972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9984e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)enum WriteStatus { 9994e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) WRITE_STATUS_OK, 10004e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) WRITE_STATUS_BLOCKED, 10014e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) WRITE_STATUS_ERROR, 10024e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)}; 10034e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 10044e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)// A struct used to return the result of write calls including either the number 10054e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)// of bytes written or the error code, depending upon the status. 10064e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)struct NET_EXPORT_PRIVATE WriteResult { 10075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) WriteResult(WriteStatus status, int bytes_written_or_error_code); 10084e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 10094e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) WriteStatus status; 10104e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) union { 10114e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) int bytes_written; // only valid when status is OK 10124e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) int error_code; // only valid when status is ERROR 10134e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) }; 10144e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)}; 10154e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 10165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 10175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // NET_QUIC_QUIC_PROTOCOL_H_ 1019