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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/quic/quic_protocol.h" | |
| 6 | |
| 7 #include "base/stl_util.h" | |
| 8 #include "net/quic/quic_utils.h" | |
| 9 | |
| 10 using base::StringPiece; | |
| 11 using std::map; | |
| 12 using std::numeric_limits; | |
| 13 using std::ostream; | |
| 14 using std::string; | |
| 15 | |
| 16 namespace net { | |
| 17 | |
| 18 size_t GetPacketHeaderSize(const QuicPacketHeader& header) { | |
| 19 return GetPacketHeaderSize(header.public_header.connection_id_length, | |
| 20 header.public_header.version_flag, | |
| 21 header.public_header.sequence_number_length, | |
| 22 header.is_in_fec_group); | |
| 23 } | |
| 24 | |
| 25 size_t GetPacketHeaderSize(QuicConnectionIdLength connection_id_length, | |
| 26 bool include_version, | |
| 27 QuicSequenceNumberLength sequence_number_length, | |
| 28 InFecGroup is_in_fec_group) { | |
| 29 return kPublicFlagsSize + connection_id_length + | |
| 30 (include_version ? kQuicVersionSize : 0) + sequence_number_length + | |
| 31 kPrivateFlagsSize + (is_in_fec_group == IN_FEC_GROUP ? kFecGroupSize : 0); | |
| 32 } | |
| 33 | |
| 34 size_t GetStartOfFecProtectedData( | |
| 35 QuicConnectionIdLength connection_id_length, | |
| 36 bool include_version, | |
| 37 QuicSequenceNumberLength sequence_number_length) { | |
| 38 return GetPacketHeaderSize(connection_id_length, | |
| 39 include_version, | |
| 40 sequence_number_length, | |
| 41 IN_FEC_GROUP); | |
| 42 } | |
| 43 | |
| 44 size_t GetStartOfEncryptedData( | |
| 45 QuicConnectionIdLength connection_id_length, | |
| 46 bool include_version, | |
| 47 QuicSequenceNumberLength sequence_number_length) { | |
| 48 // Don't include the fec size, since encryption starts before private flags. | |
| 49 return GetPacketHeaderSize(connection_id_length, | |
| 50 include_version, | |
| 51 sequence_number_length, | |
| 52 NOT_IN_FEC_GROUP) - kPrivateFlagsSize; | |
| 53 } | |
| 54 | |
| 55 QuicPacketPublicHeader::QuicPacketPublicHeader() | |
| 56 : connection_id(0), | |
| 57 connection_id_length(PACKET_8BYTE_CONNECTION_ID), | |
| 58 reset_flag(false), | |
| 59 version_flag(false), | |
| 60 sequence_number_length(PACKET_6BYTE_SEQUENCE_NUMBER) { | |
| 61 } | |
| 62 | |
| 63 QuicPacketPublicHeader::QuicPacketPublicHeader( | |
| 64 const QuicPacketPublicHeader& other) | |
| 65 : connection_id(other.connection_id), | |
| 66 connection_id_length(other.connection_id_length), | |
| 67 reset_flag(other.reset_flag), | |
| 68 version_flag(other.version_flag), | |
| 69 sequence_number_length(other.sequence_number_length), | |
| 70 versions(other.versions) { | |
| 71 } | |
| 72 | |
| 73 QuicPacketPublicHeader::~QuicPacketPublicHeader() {} | |
| 74 | |
| 75 QuicPacketHeader::QuicPacketHeader() | |
| 76 : fec_flag(false), | |
| 77 entropy_flag(false), | |
| 78 entropy_hash(0), | |
| 79 packet_sequence_number(0), | |
| 80 is_in_fec_group(NOT_IN_FEC_GROUP), | |
| 81 fec_group(0) { | |
| 82 } | |
| 83 | |
| 84 QuicPacketHeader::QuicPacketHeader(const QuicPacketPublicHeader& header) | |
| 85 : public_header(header), | |
| 86 fec_flag(false), | |
| 87 entropy_flag(false), | |
| 88 entropy_hash(0), | |
| 89 packet_sequence_number(0), | |
| 90 is_in_fec_group(NOT_IN_FEC_GROUP), | |
| 91 fec_group(0) { | |
| 92 } | |
| 93 | |
| 94 QuicPublicResetPacket::QuicPublicResetPacket() | |
| 95 : nonce_proof(0), | |
| 96 rejected_sequence_number(0) {} | |
| 97 | |
| 98 QuicPublicResetPacket::QuicPublicResetPacket( | |
| 99 const QuicPacketPublicHeader& header) | |
| 100 : public_header(header), | |
| 101 nonce_proof(0), | |
| 102 rejected_sequence_number(0) {} | |
| 103 | |
| 104 QuicStreamFrame::QuicStreamFrame() | |
| 105 : stream_id(0), | |
| 106 fin(false), | |
| 107 offset(0), | |
| 108 notifier(nullptr) {} | |
| 109 | |
| 110 QuicStreamFrame::QuicStreamFrame(const QuicStreamFrame& frame) | |
| 111 : stream_id(frame.stream_id), | |
| 112 fin(frame.fin), | |
| 113 offset(frame.offset), | |
| 114 data(frame.data), | |
| 115 notifier(frame.notifier) { | |
| 116 } | |
| 117 | |
| 118 QuicStreamFrame::QuicStreamFrame(QuicStreamId stream_id, | |
| 119 bool fin, | |
| 120 QuicStreamOffset offset, | |
| 121 IOVector data) | |
| 122 : stream_id(stream_id), | |
| 123 fin(fin), | |
| 124 offset(offset), | |
| 125 data(data), | |
| 126 notifier(nullptr) {} | |
| 127 | |
| 128 string* QuicStreamFrame::GetDataAsString() const { | |
| 129 string* data_string = new string(); | |
| 130 data_string->reserve(data.TotalBufferSize()); | |
| 131 for (size_t i = 0; i < data.Size(); ++i) { | |
| 132 data_string->append(static_cast<char*>(data.iovec()[i].iov_base), | |
| 133 data.iovec()[i].iov_len); | |
| 134 } | |
| 135 DCHECK_EQ(data_string->size(), data.TotalBufferSize()); | |
| 136 return data_string; | |
| 137 } | |
| 138 | |
| 139 uint32 MakeQuicTag(char a, char b, char c, char d) { | |
| 140 return static_cast<uint32>(a) | | |
| 141 static_cast<uint32>(b) << 8 | | |
| 142 static_cast<uint32>(c) << 16 | | |
| 143 static_cast<uint32>(d) << 24; | |
| 144 } | |
| 145 | |
| 146 bool ContainsQuicTag(const QuicTagVector& tag_vector, QuicTag tag) { | |
| 147 return std::find(tag_vector.begin(), tag_vector.end(), tag) | |
| 148 != tag_vector.end(); | |
| 149 } | |
| 150 | |
| 151 QuicVersionVector QuicSupportedVersions() { | |
| 152 QuicVersionVector supported_versions; | |
| 153 for (size_t i = 0; i < arraysize(kSupportedQuicVersions); ++i) { | |
| 154 supported_versions.push_back(kSupportedQuicVersions[i]); | |
| 155 } | |
| 156 return supported_versions; | |
| 157 } | |
| 158 | |
| 159 QuicTag QuicVersionToQuicTag(const QuicVersion version) { | |
| 160 switch (version) { | |
| 161 case QUIC_VERSION_23: | |
| 162 return MakeQuicTag('Q', '0', '2', '3'); | |
| 163 case QUIC_VERSION_24: | |
| 164 return MakeQuicTag('Q', '0', '2', '4'); | |
| 165 default: | |
| 166 // This shold be an ERROR because we should never attempt to convert an | |
| 167 // invalid QuicVersion to be written to the wire. | |
| 168 LOG(ERROR) << "Unsupported QuicVersion: " << version; | |
| 169 return 0; | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 QuicVersion QuicTagToQuicVersion(const QuicTag version_tag) { | |
| 174 for (size_t i = 0; i < arraysize(kSupportedQuicVersions); ++i) { | |
| 175 if (version_tag == QuicVersionToQuicTag(kSupportedQuicVersions[i])) { | |
| 176 return kSupportedQuicVersions[i]; | |
| 177 } | |
| 178 } | |
| 179 // Reading from the client so this should not be considered an ERROR. | |
| 180 DVLOG(1) << "Unsupported QuicTag version: " | |
| 181 << QuicUtils::TagToString(version_tag); | |
| 182 return QUIC_VERSION_UNSUPPORTED; | |
| 183 } | |
| 184 | |
| 185 #define RETURN_STRING_LITERAL(x) \ | |
| 186 case x: \ | |
| 187 return #x | |
| 188 | |
| 189 string QuicVersionToString(const QuicVersion version) { | |
| 190 switch (version) { | |
| 191 RETURN_STRING_LITERAL(QUIC_VERSION_23); | |
| 192 RETURN_STRING_LITERAL(QUIC_VERSION_24); | |
| 193 default: | |
| 194 return "QUIC_VERSION_UNSUPPORTED"; | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 string QuicVersionVectorToString(const QuicVersionVector& versions) { | |
| 199 string result = ""; | |
| 200 for (size_t i = 0; i < versions.size(); ++i) { | |
| 201 if (i != 0) { | |
| 202 result.append(","); | |
| 203 } | |
| 204 result.append(QuicVersionToString(versions[i])); | |
| 205 } | |
| 206 return result; | |
| 207 } | |
| 208 | |
| 209 ostream& operator<<(ostream& os, const QuicPacketHeader& header) { | |
| 210 os << "{ connection_id: " << header.public_header.connection_id | |
| 211 << ", connection_id_length:" << header.public_header.connection_id_length | |
| 212 << ", sequence_number_length:" | |
| 213 << header.public_header.sequence_number_length | |
| 214 << ", reset_flag: " << header.public_header.reset_flag | |
| 215 << ", version_flag: " << header.public_header.version_flag; | |
| 216 if (header.public_header.version_flag) { | |
| 217 os << " version: "; | |
| 218 for (size_t i = 0; i < header.public_header.versions.size(); ++i) { | |
| 219 os << header.public_header.versions[0] << " "; | |
| 220 } | |
| 221 } | |
| 222 os << ", fec_flag: " << header.fec_flag | |
| 223 << ", entropy_flag: " << header.entropy_flag | |
| 224 << ", entropy hash: " << static_cast<int>(header.entropy_hash) | |
| 225 << ", sequence_number: " << header.packet_sequence_number | |
| 226 << ", is_in_fec_group:" << header.is_in_fec_group | |
| 227 << ", fec_group: " << header.fec_group<< "}\n"; | |
| 228 return os; | |
| 229 } | |
| 230 | |
| 231 bool IsAwaitingPacket(const QuicAckFrame& ack_frame, | |
| 232 QuicPacketSequenceNumber sequence_number) { | |
| 233 return sequence_number > ack_frame.largest_observed || | |
| 234 ContainsKey(ack_frame.missing_packets, sequence_number); | |
| 235 } | |
| 236 | |
| 237 void InsertMissingPacketsBetween(QuicAckFrame* ack_frame, | |
| 238 QuicPacketSequenceNumber lower, | |
| 239 QuicPacketSequenceNumber higher) { | |
| 240 for (QuicPacketSequenceNumber i = lower; i < higher; ++i) { | |
| 241 ack_frame->missing_packets.insert(i); | |
| 242 } | |
| 243 } | |
| 244 | |
| 245 QuicStopWaitingFrame::QuicStopWaitingFrame() | |
| 246 : entropy_hash(0), | |
| 247 least_unacked(0) { | |
| 248 } | |
| 249 | |
| 250 QuicStopWaitingFrame::~QuicStopWaitingFrame() {} | |
| 251 | |
| 252 QuicAckFrame::QuicAckFrame() | |
| 253 : entropy_hash(0), | |
| 254 largest_observed(0), | |
| 255 delta_time_largest_observed(QuicTime::Delta::Infinite()), | |
| 256 is_truncated(false) {} | |
| 257 | |
| 258 QuicAckFrame::~QuicAckFrame() {} | |
| 259 | |
| 260 QuicRstStreamErrorCode AdjustErrorForVersion( | |
| 261 QuicRstStreamErrorCode error_code, | |
| 262 QuicVersion version) { | |
| 263 return error_code; | |
| 264 } | |
| 265 | |
| 266 QuicRstStreamFrame::QuicRstStreamFrame() | |
| 267 : stream_id(0), | |
| 268 error_code(QUIC_STREAM_NO_ERROR) { | |
| 269 } | |
| 270 | |
| 271 QuicRstStreamFrame::QuicRstStreamFrame(QuicStreamId stream_id, | |
| 272 QuicRstStreamErrorCode error_code, | |
| 273 QuicStreamOffset bytes_written) | |
| 274 : stream_id(stream_id), | |
| 275 error_code(error_code), | |
| 276 byte_offset(bytes_written) { | |
| 277 DCHECK_LE(error_code, numeric_limits<uint8>::max()); | |
| 278 } | |
| 279 | |
| 280 QuicConnectionCloseFrame::QuicConnectionCloseFrame() | |
| 281 : error_code(QUIC_NO_ERROR) { | |
| 282 } | |
| 283 | |
| 284 QuicFrame::QuicFrame() {} | |
| 285 | |
| 286 QuicFrame::QuicFrame(QuicPaddingFrame* padding_frame) | |
| 287 : type(PADDING_FRAME), | |
| 288 padding_frame(padding_frame) { | |
| 289 } | |
| 290 | |
| 291 QuicFrame::QuicFrame(QuicStreamFrame* stream_frame) | |
| 292 : type(STREAM_FRAME), | |
| 293 stream_frame(stream_frame) { | |
| 294 } | |
| 295 | |
| 296 QuicFrame::QuicFrame(QuicAckFrame* frame) | |
| 297 : type(ACK_FRAME), | |
| 298 ack_frame(frame) { | |
| 299 } | |
| 300 | |
| 301 QuicFrame::QuicFrame(QuicStopWaitingFrame* frame) | |
| 302 : type(STOP_WAITING_FRAME), | |
| 303 stop_waiting_frame(frame) { | |
| 304 } | |
| 305 | |
| 306 QuicFrame::QuicFrame(QuicPingFrame* frame) | |
| 307 : type(PING_FRAME), | |
| 308 ping_frame(frame) { | |
| 309 } | |
| 310 | |
| 311 QuicFrame::QuicFrame(QuicRstStreamFrame* frame) | |
| 312 : type(RST_STREAM_FRAME), | |
| 313 rst_stream_frame(frame) { | |
| 314 } | |
| 315 | |
| 316 QuicFrame::QuicFrame(QuicConnectionCloseFrame* frame) | |
| 317 : type(CONNECTION_CLOSE_FRAME), | |
| 318 connection_close_frame(frame) { | |
| 319 } | |
| 320 | |
| 321 QuicFrame::QuicFrame(QuicGoAwayFrame* frame) | |
| 322 : type(GOAWAY_FRAME), | |
| 323 goaway_frame(frame) { | |
| 324 } | |
| 325 | |
| 326 QuicFrame::QuicFrame(QuicWindowUpdateFrame* frame) | |
| 327 : type(WINDOW_UPDATE_FRAME), | |
| 328 window_update_frame(frame) { | |
| 329 } | |
| 330 | |
| 331 QuicFrame::QuicFrame(QuicBlockedFrame* frame) | |
| 332 : type(BLOCKED_FRAME), | |
| 333 blocked_frame(frame) { | |
| 334 } | |
| 335 | |
| 336 QuicFecData::QuicFecData() : fec_group(0) {} | |
| 337 | |
| 338 ostream& operator<<(ostream& os, const QuicStopWaitingFrame& sent_info) { | |
| 339 os << "entropy_hash: " << static_cast<int>(sent_info.entropy_hash) | |
| 340 << " least_unacked: " << sent_info.least_unacked; | |
| 341 return os; | |
| 342 } | |
| 343 | |
| 344 ostream& operator<<(ostream& os, const QuicAckFrame& ack_frame) { | |
| 345 os << "entropy_hash: " << static_cast<int>(ack_frame.entropy_hash) | |
| 346 << " largest_observed: " << ack_frame.largest_observed | |
| 347 << " delta_time_largest_observed: " | |
| 348 << ack_frame.delta_time_largest_observed.ToMicroseconds() | |
| 349 << " missing_packets: [ "; | |
| 350 for (SequenceNumberSet::const_iterator it = ack_frame.missing_packets.begin(); | |
| 351 it != ack_frame.missing_packets.end(); ++it) { | |
| 352 os << *it << " "; | |
| 353 } | |
| 354 os << " ] is_truncated: " << ack_frame.is_truncated; | |
| 355 os << " revived_packets: [ "; | |
| 356 for (SequenceNumberSet::const_iterator it = ack_frame.revived_packets.begin(); | |
| 357 it != ack_frame.revived_packets.end(); ++it) { | |
| 358 os << *it << " "; | |
| 359 } | |
| 360 os << " ] received_packets: [ "; | |
| 361 for (PacketTimeList::const_iterator it = | |
| 362 ack_frame.received_packet_times.begin(); | |
| 363 it != ack_frame.received_packet_times.end(); ++it) { | |
| 364 os << it->first << " at " << it->second.ToDebuggingValue() << " "; | |
| 365 } | |
| 366 os << " ]"; | |
| 367 return os; | |
| 368 } | |
| 369 | |
| 370 ostream& operator<<(ostream& os, const QuicFrame& frame) { | |
| 371 switch (frame.type) { | |
| 372 case PADDING_FRAME: { | |
| 373 os << "type { PADDING_FRAME } "; | |
| 374 break; | |
| 375 } | |
| 376 case RST_STREAM_FRAME: { | |
| 377 os << "type { " << RST_STREAM_FRAME << " } " << *(frame.rst_stream_frame); | |
| 378 break; | |
| 379 } | |
| 380 case CONNECTION_CLOSE_FRAME: { | |
| 381 os << "type { CONNECTION_CLOSE_FRAME } " | |
| 382 << *(frame.connection_close_frame); | |
| 383 break; | |
| 384 } | |
| 385 case GOAWAY_FRAME: { | |
| 386 os << "type { GOAWAY_FRAME } " << *(frame.goaway_frame); | |
| 387 break; | |
| 388 } | |
| 389 case WINDOW_UPDATE_FRAME: { | |
| 390 os << "type { WINDOW_UPDATE_FRAME } " << *(frame.window_update_frame); | |
| 391 break; | |
| 392 } | |
| 393 case BLOCKED_FRAME: { | |
| 394 os << "type { BLOCKED_FRAME } " << *(frame.blocked_frame); | |
| 395 break; | |
| 396 } | |
| 397 case STREAM_FRAME: { | |
| 398 os << "type { STREAM_FRAME } " << *(frame.stream_frame); | |
| 399 break; | |
| 400 } | |
| 401 case ACK_FRAME: { | |
| 402 os << "type { ACK_FRAME } " << *(frame.ack_frame); | |
| 403 break; | |
| 404 } | |
| 405 case STOP_WAITING_FRAME: { | |
| 406 os << "type { STOP_WAITING_FRAME } " << *(frame.stop_waiting_frame); | |
| 407 break; | |
| 408 } | |
| 409 case PING_FRAME: { | |
| 410 os << "type { PING_FRAME } "; | |
| 411 break; | |
| 412 } | |
| 413 default: { | |
| 414 LOG(ERROR) << "Unknown frame type: " << frame.type; | |
| 415 break; | |
| 416 } | |
| 417 } | |
| 418 return os; | |
| 419 } | |
| 420 | |
| 421 ostream& operator<<(ostream& os, const QuicRstStreamFrame& rst_frame) { | |
| 422 os << "stream_id { " << rst_frame.stream_id << " } " | |
| 423 << "error_code { " << rst_frame.error_code << " } " | |
| 424 << "error_details { " << rst_frame.error_details << " }\n"; | |
| 425 return os; | |
| 426 } | |
| 427 | |
| 428 ostream& operator<<(ostream& os, | |
| 429 const QuicConnectionCloseFrame& connection_close_frame) { | |
| 430 os << "error_code { " << connection_close_frame.error_code << " } " | |
| 431 << "error_details { " << connection_close_frame.error_details << " }\n"; | |
| 432 return os; | |
| 433 } | |
| 434 | |
| 435 ostream& operator<<(ostream& os, const QuicGoAwayFrame& goaway_frame) { | |
| 436 os << "error_code { " << goaway_frame.error_code << " } " | |
| 437 << "last_good_stream_id { " << goaway_frame.last_good_stream_id << " } " | |
| 438 << "reason_phrase { " << goaway_frame.reason_phrase << " }\n"; | |
| 439 return os; | |
| 440 } | |
| 441 | |
| 442 ostream& operator<<(ostream& os, | |
| 443 const QuicWindowUpdateFrame& window_update_frame) { | |
| 444 os << "stream_id { " << window_update_frame.stream_id << " } " | |
| 445 << "byte_offset { " << window_update_frame.byte_offset << " }\n"; | |
| 446 return os; | |
| 447 } | |
| 448 | |
| 449 ostream& operator<<(ostream& os, const QuicBlockedFrame& blocked_frame) { | |
| 450 os << "stream_id { " << blocked_frame.stream_id << " }\n"; | |
| 451 return os; | |
| 452 } | |
| 453 | |
| 454 ostream& operator<<(ostream& os, const QuicStreamFrame& stream_frame) { | |
| 455 os << "stream_id { " << stream_frame.stream_id << " } " | |
| 456 << "fin { " << stream_frame.fin << " } " | |
| 457 << "offset { " << stream_frame.offset << " } " | |
| 458 << "data { " | |
| 459 << QuicUtils::StringToHexASCIIDump(*(stream_frame.GetDataAsString())) | |
| 460 << " }\n"; | |
| 461 return os; | |
| 462 } | |
| 463 | |
| 464 QuicGoAwayFrame::QuicGoAwayFrame() | |
| 465 : error_code(QUIC_NO_ERROR), | |
| 466 last_good_stream_id(0) { | |
| 467 } | |
| 468 | |
| 469 QuicGoAwayFrame::QuicGoAwayFrame(QuicErrorCode error_code, | |
| 470 QuicStreamId last_good_stream_id, | |
| 471 const string& reason) | |
| 472 : error_code(error_code), | |
| 473 last_good_stream_id(last_good_stream_id), | |
| 474 reason_phrase(reason) { | |
| 475 DCHECK_LE(error_code, numeric_limits<uint8>::max()); | |
| 476 } | |
| 477 | |
| 478 QuicData::QuicData(const char* buffer, | |
| 479 size_t length) | |
| 480 : buffer_(buffer), | |
| 481 length_(length), | |
| 482 owns_buffer_(false) { | |
| 483 } | |
| 484 | |
| 485 QuicData::QuicData(char* buffer, | |
| 486 size_t length, | |
| 487 bool owns_buffer) | |
| 488 : buffer_(buffer), | |
| 489 length_(length), | |
| 490 owns_buffer_(owns_buffer) { | |
| 491 } | |
| 492 | |
| 493 QuicData::~QuicData() { | |
| 494 if (owns_buffer_) { | |
| 495 delete [] const_cast<char*>(buffer_); | |
| 496 } | |
| 497 } | |
| 498 | |
| 499 QuicWindowUpdateFrame::QuicWindowUpdateFrame(QuicStreamId stream_id, | |
| 500 QuicStreamOffset byte_offset) | |
| 501 : stream_id(stream_id), | |
| 502 byte_offset(byte_offset) {} | |
| 503 | |
| 504 QuicBlockedFrame::QuicBlockedFrame(QuicStreamId stream_id) | |
| 505 : stream_id(stream_id) {} | |
| 506 | |
| 507 QuicPacket::QuicPacket(char* buffer, | |
| 508 size_t length, | |
| 509 bool owns_buffer, | |
| 510 QuicConnectionIdLength connection_id_length, | |
| 511 bool includes_version, | |
| 512 QuicSequenceNumberLength sequence_number_length) | |
| 513 : QuicData(buffer, length, owns_buffer), | |
| 514 buffer_(buffer), | |
| 515 connection_id_length_(connection_id_length), | |
| 516 includes_version_(includes_version), | |
| 517 sequence_number_length_(sequence_number_length) { | |
| 518 } | |
| 519 | |
| 520 QuicEncryptedPacket::QuicEncryptedPacket(const char* buffer, | |
| 521 size_t length) | |
| 522 : QuicData(buffer, length) { | |
| 523 } | |
| 524 | |
| 525 QuicEncryptedPacket::QuicEncryptedPacket(char* buffer, | |
| 526 size_t length, | |
| 527 bool owns_buffer) | |
| 528 : QuicData(buffer, length, owns_buffer) { | |
| 529 } | |
| 530 | |
| 531 StringPiece QuicPacket::FecProtectedData() const { | |
| 532 const size_t start_of_fec = GetStartOfFecProtectedData( | |
| 533 connection_id_length_, includes_version_, sequence_number_length_); | |
| 534 return StringPiece(data() + start_of_fec, length() - start_of_fec); | |
| 535 } | |
| 536 | |
| 537 StringPiece QuicPacket::AssociatedData() const { | |
| 538 return StringPiece( | |
| 539 data() + kStartOfHashData, | |
| 540 GetStartOfEncryptedData( | |
| 541 connection_id_length_, includes_version_, sequence_number_length_) - | |
| 542 kStartOfHashData); | |
| 543 } | |
| 544 | |
| 545 StringPiece QuicPacket::BeforePlaintext() const { | |
| 546 return StringPiece(data(), GetStartOfEncryptedData(connection_id_length_, | |
| 547 includes_version_, | |
| 548 sequence_number_length_)); | |
| 549 } | |
| 550 | |
| 551 StringPiece QuicPacket::Plaintext() const { | |
| 552 const size_t start_of_encrypted_data = | |
| 553 GetStartOfEncryptedData( | |
| 554 connection_id_length_, includes_version_, sequence_number_length_); | |
| 555 return StringPiece(data() + start_of_encrypted_data, | |
| 556 length() - start_of_encrypted_data); | |
| 557 } | |
| 558 | |
| 559 RetransmittableFrames::RetransmittableFrames() | |
| 560 : encryption_level_(NUM_ENCRYPTION_LEVELS), | |
| 561 has_crypto_handshake_(NOT_HANDSHAKE) { | |
| 562 } | |
| 563 | |
| 564 RetransmittableFrames::~RetransmittableFrames() { | |
| 565 for (QuicFrames::iterator it = frames_.begin(); it != frames_.end(); ++it) { | |
| 566 switch (it->type) { | |
| 567 case PADDING_FRAME: | |
| 568 delete it->padding_frame; | |
| 569 break; | |
| 570 case STREAM_FRAME: | |
| 571 delete it->stream_frame; | |
| 572 break; | |
| 573 case ACK_FRAME: | |
| 574 delete it->ack_frame; | |
| 575 break; | |
| 576 case STOP_WAITING_FRAME: | |
| 577 delete it->stop_waiting_frame; | |
| 578 break; | |
| 579 case PING_FRAME: | |
| 580 delete it->ping_frame; | |
| 581 break; | |
| 582 case RST_STREAM_FRAME: | |
| 583 delete it->rst_stream_frame; | |
| 584 break; | |
| 585 case CONNECTION_CLOSE_FRAME: | |
| 586 delete it->connection_close_frame; | |
| 587 break; | |
| 588 case GOAWAY_FRAME: | |
| 589 delete it->goaway_frame; | |
| 590 break; | |
| 591 case WINDOW_UPDATE_FRAME: | |
| 592 delete it->window_update_frame; | |
| 593 break; | |
| 594 case BLOCKED_FRAME: | |
| 595 delete it->blocked_frame; | |
| 596 break; | |
| 597 case NUM_FRAME_TYPES: | |
| 598 DCHECK(false) << "Cannot delete type: " << it->type; | |
| 599 } | |
| 600 } | |
| 601 STLDeleteElements(&stream_data_); | |
| 602 } | |
| 603 | |
| 604 const QuicFrame& RetransmittableFrames::AddStreamFrame( | |
| 605 QuicStreamFrame* stream_frame) { | |
| 606 // Make an owned copy of the stream frame's data. | |
| 607 stream_data_.push_back(stream_frame->GetDataAsString()); | |
| 608 // Ensure the stream frame's IOVector points to the owned copy of the data. | |
| 609 stream_frame->data.Clear(); | |
| 610 stream_frame->data.Append(const_cast<char*>(stream_data_.back()->data()), | |
| 611 stream_data_.back()->size()); | |
| 612 frames_.push_back(QuicFrame(stream_frame)); | |
| 613 if (stream_frame->stream_id == kCryptoStreamId) { | |
| 614 has_crypto_handshake_ = IS_HANDSHAKE; | |
| 615 } | |
| 616 return frames_.back(); | |
| 617 } | |
| 618 | |
| 619 const QuicFrame& RetransmittableFrames::AddNonStreamFrame( | |
| 620 const QuicFrame& frame) { | |
| 621 DCHECK_NE(frame.type, STREAM_FRAME); | |
| 622 frames_.push_back(frame); | |
| 623 return frames_.back(); | |
| 624 } | |
| 625 | |
| 626 void RetransmittableFrames::set_encryption_level(EncryptionLevel level) { | |
| 627 encryption_level_ = level; | |
| 628 } | |
| 629 | |
| 630 SerializedPacket::SerializedPacket( | |
| 631 QuicPacketSequenceNumber sequence_number, | |
| 632 QuicSequenceNumberLength sequence_number_length, | |
| 633 QuicEncryptedPacket* packet, | |
| 634 QuicPacketEntropyHash entropy_hash, | |
| 635 RetransmittableFrames* retransmittable_frames) | |
| 636 : sequence_number(sequence_number), | |
| 637 sequence_number_length(sequence_number_length), | |
| 638 packet(packet), | |
| 639 entropy_hash(entropy_hash), | |
| 640 retransmittable_frames(retransmittable_frames), | |
| 641 is_fec_packet(false) { | |
| 642 } | |
| 643 | |
| 644 SerializedPacket::~SerializedPacket() {} | |
| 645 | |
| 646 QuicEncryptedPacket* QuicEncryptedPacket::Clone() const { | |
| 647 char* buffer = new char[this->length()]; | |
| 648 memcpy(buffer, this->data(), this->length()); | |
| 649 return new QuicEncryptedPacket(buffer, this->length(), true); | |
| 650 } | |
| 651 | |
| 652 ostream& operator<<(ostream& os, const QuicEncryptedPacket& s) { | |
| 653 os << s.length() << "-byte data"; | |
| 654 return os; | |
| 655 } | |
| 656 | |
| 657 TransmissionInfo::TransmissionInfo() | |
| 658 : retransmittable_frames(nullptr), | |
| 659 sequence_number_length(PACKET_1BYTE_SEQUENCE_NUMBER), | |
| 660 sent_time(QuicTime::Zero()), | |
| 661 bytes_sent(0), | |
| 662 nack_count(0), | |
| 663 transmission_type(NOT_RETRANSMISSION), | |
| 664 all_transmissions(nullptr), | |
| 665 in_flight(false), | |
| 666 is_unackable(false), | |
| 667 is_fec_packet(false) {} | |
| 668 | |
| 669 TransmissionInfo::TransmissionInfo( | |
| 670 RetransmittableFrames* retransmittable_frames, | |
| 671 QuicSequenceNumberLength sequence_number_length, | |
| 672 TransmissionType transmission_type, | |
| 673 QuicTime sent_time) | |
| 674 : retransmittable_frames(retransmittable_frames), | |
| 675 sequence_number_length(sequence_number_length), | |
| 676 sent_time(sent_time), | |
| 677 bytes_sent(0), | |
| 678 nack_count(0), | |
| 679 transmission_type(transmission_type), | |
| 680 all_transmissions(nullptr), | |
| 681 in_flight(false), | |
| 682 is_unackable(false), | |
| 683 is_fec_packet(false) {} | |
| 684 | |
| 685 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master