| // Copyright (c) 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef QUICHE_QUIC_CORE_HTTP_HTTP_CONSTANTS_H_ |
| #define QUICHE_QUIC_CORE_HTTP_HTTP_CONSTANTS_H_ |
| |
| #include <cstdint> |
| #include <string> |
| |
| #include "absl/strings/string_view.h" |
| #include "quiche/quic/core/quic_types.h" |
| #include "quiche/quic/platform/api/quic_export.h" |
| |
| namespace quic { |
| |
| // Unidirectional stream types. |
| enum : uint64_t { |
| // https://quicwg.org/base-drafts/draft-ietf-quic-http.html#unidirectional-streams |
| kControlStream = 0x00, |
| kServerPushStream = 0x01, |
| // https://quicwg.org/base-drafts/draft-ietf-quic-qpack.html#enc-dec-stream-def |
| kQpackEncoderStream = 0x02, |
| kQpackDecoderStream = 0x03, |
| // https://ietf-wg-webtrans.github.io/draft-ietf-webtrans-http3/draft-ietf-webtrans-http3.html#name-unidirectional-streams |
| kWebTransportUnidirectionalStream = 0x54, |
| }; |
| |
| // This includes control stream, QPACK encoder stream, and QPACK decoder stream. |
| enum : QuicStreamCount { kHttp3StaticUnidirectionalStreamCount = 3 }; |
| |
| // HTTP/3 and QPACK settings identifiers. |
| // https://quicwg.org/base-drafts/draft-ietf-quic-http.html#settings-parameters |
| // https://quicwg.org/base-drafts/draft-ietf-quic-qpack.html#configuration |
| enum Http3AndQpackSettingsIdentifiers : uint64_t { |
| // Same value as spdy::SETTINGS_HEADER_TABLE_SIZE. |
| SETTINGS_QPACK_MAX_TABLE_CAPACITY = 0x01, |
| // Same value as spdy::SETTINGS_MAX_HEADER_LIST_SIZE. |
| SETTINGS_MAX_FIELD_SECTION_SIZE = 0x06, |
| SETTINGS_QPACK_BLOCKED_STREAMS = 0x07, |
| // draft-ietf-masque-h3-datagram-04. |
| SETTINGS_H3_DATAGRAM_DRAFT04 = 0xffd277, |
| // RFC 9297. |
| SETTINGS_H3_DATAGRAM = 0x33, |
| // draft-ietf-webtrans-http3-00 |
| SETTINGS_WEBTRANS_DRAFT00 = 0x2b603742, |
| // draft-ietf-httpbis-h3-websockets |
| SETTINGS_ENABLE_CONNECT_PROTOCOL = 0x08, |
| SETTINGS_ENABLE_METADATA = 0x4d44, |
| }; |
| |
| // Returns HTTP/3 SETTINGS identifier as a string. |
| QUIC_EXPORT std::string H3SettingsToString( |
| Http3AndQpackSettingsIdentifiers identifier); |
| |
| // Default maximum dynamic table capacity, communicated via |
| // SETTINGS_QPACK_MAX_TABLE_CAPACITY. |
| enum : QuicByteCount { |
| kDefaultQpackMaxDynamicTableCapacity = 64 * 1024 // 64 KB |
| }; |
| |
| // Default limit on the size of uncompressed headers, |
| // communicated via SETTINGS_MAX_HEADER_LIST_SIZE. |
| enum : QuicByteCount { |
| kDefaultMaxUncompressedHeaderSize = 16 * 1024 // 16 KB |
| }; |
| |
| // Default limit on number of blocked streams, communicated via |
| // SETTINGS_QPACK_BLOCKED_STREAMS. |
| enum : uint64_t { kDefaultMaximumBlockedStreams = 100 }; |
| |
| ABSL_CONST_INIT QUIC_EXPORT_PRIVATE extern const absl::string_view |
| kUserAgentHeaderName; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_HTTP_HTTP_CONSTANTS_H_ |