Mercurial > hg > nginx-quic
view src/http/v3/ngx_http_v3_parse.h @ 7870:e169cce912c7 quic
Avoid retransmitting of packets with discarded keys.
Sections 4.10.1 and 4.10.2 of quic transport describe discarding of initial
and handshake keys. Since the keys are discarded, we no longer need
to retransmit packets and corresponding queues should be emptied.
This patch removes previously added workaround that did not require
acknowledgement for initial packets, resulting in avoiding retransmission,
which is wrong because a packet could be lost and we have to retransmit it.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Mon, 18 May 2020 13:54:53 +0300 |
parents | 5649079a41f4 |
children | b0e81f49d7c0 |
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/* * Copyright (C) Roman Arutyunyan * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_V3_PARSE_H_INCLUDED_ #define _NGX_HTTP_V3_PARSE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> typedef struct { ngx_uint_t state; uint64_t value; } ngx_http_v3_parse_varlen_int_t; typedef struct { ngx_uint_t state; ngx_uint_t mask; uint64_t value; } ngx_http_v3_parse_prefix_int_t; typedef struct { ngx_uint_t state; uint64_t id; ngx_http_v3_parse_varlen_int_t vlint; } ngx_http_v3_parse_settings_t; typedef struct { ngx_uint_t state; ngx_uint_t insert_count; ngx_uint_t delta_base; ngx_uint_t sign; ngx_uint_t base; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_header_block_prefix_t; typedef struct { ngx_uint_t state; ngx_uint_t length; ngx_uint_t huffman; ngx_str_t value; u_char *last; u_char huffstate; } ngx_http_v3_parse_literal_t; typedef struct { ngx_uint_t state; ngx_uint_t index; ngx_uint_t base; ngx_uint_t dynamic; ngx_str_t name; ngx_str_t value; ngx_http_v3_parse_prefix_int_t pint; ngx_http_v3_parse_literal_t literal; } ngx_http_v3_parse_header_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_header_t header; } ngx_http_v3_parse_header_rep_t; typedef struct { ngx_uint_t state; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; ngx_http_v3_parse_header_block_prefix_t prefix; ngx_http_v3_parse_header_rep_t header_rep; } ngx_http_v3_parse_headers_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_header_t header; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_encoder_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_decoder_t; typedef struct { ngx_uint_t state; ngx_uint_t type; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; ngx_http_v3_parse_settings_t settings; } ngx_http_v3_parse_control_t; typedef struct { ngx_uint_t state; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; } ngx_http_v3_parse_data_t; ngx_int_t ngx_http_v3_parse_varlen_int(ngx_connection_t *c, ngx_http_v3_parse_varlen_int_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_prefix_int(ngx_connection_t *c, ngx_http_v3_parse_prefix_int_t *st, ngx_uint_t prefix, u_char ch); ngx_int_t ngx_http_v3_parse_headers(ngx_connection_t *c, ngx_http_v3_parse_headers_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_block_prefix(ngx_connection_t *c, ngx_http_v3_parse_header_block_prefix_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_rep(ngx_connection_t *c, ngx_http_v3_parse_header_rep_t *st, ngx_uint_t base, u_char ch); ngx_int_t ngx_http_v3_parse_literal(ngx_connection_t *c, ngx_http_v3_parse_literal_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_ri(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_lri(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_l(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_pbi(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_lpbi(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_control(ngx_connection_t *c, void *data, u_char ch); ngx_int_t ngx_http_v3_parse_settings(ngx_connection_t *c, ngx_http_v3_parse_settings_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_encoder(ngx_connection_t *c, void *data, u_char ch); ngx_int_t ngx_http_v3_parse_header_inr(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_header_iwnr(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, u_char ch); ngx_int_t ngx_http_v3_parse_decoder(ngx_connection_t *c, void *data, u_char ch); ngx_int_t ngx_http_v3_parse_data(ngx_connection_t *c, ngx_http_v3_parse_data_t *st, u_char ch); #endif /* _NGX_HTTP_V3_PARSE_H_INCLUDED_ */