82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/* Copyright (c) 2017 LiteSpeed Technologies Inc. See LICENSE. */
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/*
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* lsquic_frame_common.h
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*/
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#ifndef LSQUIC_FRAME_COMMON_H
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#define LSQUIC_FRAME_COMMON_H 1
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enum http_frame_type
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{
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HTTP_FRAME_DATA = 0x00,
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HTTP_FRAME_HEADERS = 0x01,
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HTTP_FRAME_PRIORITY = 0x02,
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HTTP_FRAME_RST_STREAM = 0x03,
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HTTP_FRAME_SETTINGS = 0x04,
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HTTP_FRAME_PUSH_PROMISE = 0x05,
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HTTP_FRAME_PING = 0x06,
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HTTP_FRAME_GOAWAY = 0x07,
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HTTP_FRAME_WINDOW_UPDATE = 0x08,
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HTTP_FRAME_CONTINUATION = 0x09,
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N_HTTP_FRAME_TYPES
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};
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enum http_frame_header_flags /* RFC 7540, Section 6.2 */
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{
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HFHF_END_STREAM = 0x01,
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HFHF_END_HEADERS = 0x04,
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HFHF_PADDED = 0x08,
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HFHF_PRIORITY = 0x20,
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};
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struct http_frame_header /* RFC 7540, Section 4.1 */
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{
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unsigned char hfh_length[3];
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unsigned char hfh_type; /* enum http_frame_type */
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unsigned char hfh_flags;
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unsigned char hfh_stream_id[4];
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};
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#define hfh_get_length(hfh) ( ((hfh)->hfh_length[0] << 16) | \
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((hfh)->hfh_length[1] << 8) | \
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(hfh)->hfh_length[2] )
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enum settings_param /* RFC 7540, Section 6.5.2 */
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{
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SETTINGS_HEADER_TABLE_SIZE = 0x0001,
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SETTINGS_ENABLE_PUSH = 0x0002,
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SETTINGS_MAX_CONCURRENT_STREAMS = 0x0003,
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SETTINGS_INITIAL_WINDOW_SIZE = 0x0004,
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SETTINGS_MAX_FRAME_SIZE = 0x0005,
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SETTINGS_MAX_HEADER_LIST_SIZE = 0x0006,
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};
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/* This also doubles as HEADERS frame payload prefix: */
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struct http_prio_frame /* RFC 7540, Section 6.3 */
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{
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unsigned char hpf_stream_id[4]; /* High bit is the exclusive flag */
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unsigned char hpf_weight;
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};
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struct http_push_promise_frame /* RFC 7540, Section 6.6 */
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{
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unsigned char hppf_promised_id[4]; /* High bit is reserved */
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};
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struct lsquic_http2_setting
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{
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uint16_t id;
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uint32_t value;
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};
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const char *
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lsquic_http_setting_id2str (enum settings_param id);
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#endif
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