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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 shift;
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_field_section_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_field_t;
typedef struct {
ngx_uint_t state;
ngx_http_v3_parse_field_t field;
} ngx_http_v3_parse_field_rep_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_field_section_prefix_t prefix;
ngx_http_v3_parse_field_rep_t field_rep;
} ngx_http_v3_parse_headers_t;
typedef struct {
ngx_uint_t state;
ngx_http_v3_parse_field_t field;
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_http_v3_parse_varlen_int_t vlint;
union {
ngx_http_v3_parse_encoder_t encoder;
ngx_http_v3_parse_decoder_t decoder;
ngx_http_v3_parse_control_t control;
} u;
} ngx_http_v3_parse_uni_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_data_t;
/*
* Parse functions return codes:
* NGX_DONE - parsing done
* NGX_OK - sub-element done
* NGX_AGAIN - more data expected
* NGX_BUSY - waiting for external event
* NGX_ERROR - internal error
* NGX_HTTP_V3_ERROR_XXX - HTTP/3 or QPACK error
*/
ngx_int_t ngx_http_v3_parse_headers(ngx_connection_t *c,
ngx_http_v3_parse_headers_t *st, ngx_buf_t *b);
ngx_int_t ngx_http_v3_parse_data(ngx_connection_t *c,
ngx_http_v3_parse_data_t *st, ngx_buf_t *b);
ngx_int_t ngx_http_v3_parse_uni(ngx_connection_t *c,
ngx_http_v3_parse_uni_t *st, ngx_buf_t *b);
#endif /* _NGX_HTTP_V3_PARSE_H_INCLUDED_ */
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