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annotate src/http/v3/ngx_http_v3.h @ 9294:ea0eef2dd12c default tip

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Resolver: allowed responses with AD bit set.
author Kirill A. Korinsky <kirill@korins.ky>
date Sun, 16 Jun 2024 04:17:27 +0300
parents 4939fd04737f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #ifndef _NGX_HTTP_V3_H_INCLUDED_
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9 #define _NGX_HTTP_V3_H_INCLUDED_
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_http.h>
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16 #include <ngx_http_v3_parse.h>
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17 #include <ngx_http_v3_encode.h>
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18 #include <ngx_http_v3_uni.h>
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19 #include <ngx_http_v3_table.h>
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20
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21
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22 #define NGX_HTTP_V3_ALPN_PROTO "\x02h3"
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23 #define NGX_HTTP_V3_HQ_ALPN_PROTO "\x0Ahq-interop"
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24 #define NGX_HTTP_V3_HQ_PROTO "hq-interop"
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26 #define NGX_HTTP_V3_VARLEN_INT_LEN 4
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27 #define NGX_HTTP_V3_PREFIX_INT_LEN 11
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28
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29 #define NGX_HTTP_V3_STREAM_CONTROL 0x00
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30 #define NGX_HTTP_V3_STREAM_PUSH 0x01
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31 #define NGX_HTTP_V3_STREAM_ENCODER 0x02
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32 #define NGX_HTTP_V3_STREAM_DECODER 0x03
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33
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34 #define NGX_HTTP_V3_FRAME_DATA 0x00
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35 #define NGX_HTTP_V3_FRAME_HEADERS 0x01
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36 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03
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37 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04
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38 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05
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39 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07
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40 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d
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41
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42 #define NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY 0x01
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43 #define NGX_HTTP_V3_PARAM_MAX_FIELD_SECTION_SIZE 0x06
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44 #define NGX_HTTP_V3_PARAM_BLOCKED_STREAMS 0x07
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45
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46 #define NGX_HTTP_V3_MAX_TABLE_CAPACITY 4096
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47
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48 #define NGX_HTTP_V3_STREAM_CLIENT_CONTROL 0
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49 #define NGX_HTTP_V3_STREAM_SERVER_CONTROL 1
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50 #define NGX_HTTP_V3_STREAM_CLIENT_ENCODER 2
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51 #define NGX_HTTP_V3_STREAM_SERVER_ENCODER 3
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52 #define NGX_HTTP_V3_STREAM_CLIENT_DECODER 4
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53 #define NGX_HTTP_V3_STREAM_SERVER_DECODER 5
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54 #define NGX_HTTP_V3_MAX_KNOWN_STREAM 6
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55 #define NGX_HTTP_V3_MAX_UNI_STREAMS 3
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56
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57 /* HTTP/3 errors */
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58 #define NGX_HTTP_V3_ERR_NO_ERROR 0x100
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59 #define NGX_HTTP_V3_ERR_GENERAL_PROTOCOL_ERROR 0x101
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60 #define NGX_HTTP_V3_ERR_INTERNAL_ERROR 0x102
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61 #define NGX_HTTP_V3_ERR_STREAM_CREATION_ERROR 0x103
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62 #define NGX_HTTP_V3_ERR_CLOSED_CRITICAL_STREAM 0x104
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63 #define NGX_HTTP_V3_ERR_FRAME_UNEXPECTED 0x105
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64 #define NGX_HTTP_V3_ERR_FRAME_ERROR 0x106
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65 #define NGX_HTTP_V3_ERR_EXCESSIVE_LOAD 0x107
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66 #define NGX_HTTP_V3_ERR_ID_ERROR 0x108
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67 #define NGX_HTTP_V3_ERR_SETTINGS_ERROR 0x109
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68 #define NGX_HTTP_V3_ERR_MISSING_SETTINGS 0x10a
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69 #define NGX_HTTP_V3_ERR_REQUEST_REJECTED 0x10b
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70 #define NGX_HTTP_V3_ERR_REQUEST_CANCELLED 0x10c
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71 #define NGX_HTTP_V3_ERR_REQUEST_INCOMPLETE 0x10d
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72 #define NGX_HTTP_V3_ERR_CONNECT_ERROR 0x10f
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73 #define NGX_HTTP_V3_ERR_VERSION_FALLBACK 0x110
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74
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75 /* QPACK errors */
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76 #define NGX_HTTP_V3_ERR_DECOMPRESSION_FAILED 0x200
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77 #define NGX_HTTP_V3_ERR_ENCODER_STREAM_ERROR 0x201
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78 #define NGX_HTTP_V3_ERR_DECODER_STREAM_ERROR 0x202
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79
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80
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81 #define ngx_http_v3_get_session(c) \
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82 ((ngx_http_v3_session_t *) ((c)->quic ? (c)->quic->parent->data \
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83 : (c)->data))
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84
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85 #define ngx_http_quic_get_connection(c) \
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86 (ngx_http_v3_get_session(c)->http_connection)
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87
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88 #define ngx_http_v3_get_module_loc_conf(c, module) \
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89 ngx_http_get_module_loc_conf(ngx_http_quic_get_connection(c)->conf_ctx, \
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90 module)
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91
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92 #define ngx_http_v3_get_module_srv_conf(c, module) \
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93 ngx_http_get_module_srv_conf(ngx_http_quic_get_connection(c)->conf_ctx, \
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94 module)
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95
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96 #define ngx_http_v3_finalize_connection(c, code, reason) \
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97 ngx_quic_finalize_connection((c)->quic ? (c)->quic->parent : (c), \
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98 code, reason)
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99
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100 #define ngx_http_v3_shutdown_connection(c, code, reason) \
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101 ngx_quic_shutdown_connection((c)->quic ? (c)->quic->parent : (c), \
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102 code, reason)
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103
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104
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105 typedef struct {
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106 ngx_flag_t enable;
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107 ngx_flag_t enable_hq;
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108 size_t max_table_capacity;
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109 ngx_uint_t max_blocked_streams;
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110 ngx_uint_t max_concurrent_streams;
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111 ngx_quic_conf_t quic;
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112 } ngx_http_v3_srv_conf_t;
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113
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114
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115 struct ngx_http_v3_parse_s {
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116 size_t header_limit;
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117 ngx_http_v3_parse_headers_t headers;
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118 ngx_http_v3_parse_data_t body;
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119 ngx_array_t *cookies;
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120 };
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121
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122
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123 struct ngx_http_v3_session_s {
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124 ngx_http_connection_t *http_connection;
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125
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126 ngx_http_v3_dynamic_table_t table;
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127
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128 ngx_event_t keepalive;
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129 ngx_uint_t nrequests;
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130
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131 ngx_queue_t blocked;
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132 ngx_uint_t nblocked;
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133
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134 uint64_t next_request_id;
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135
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136 off_t total_bytes;
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137 off_t payload_bytes;
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138
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139 unsigned goaway:1;
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140 unsigned hq:1;
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141
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142 ngx_connection_t *known_streams[NGX_HTTP_V3_MAX_KNOWN_STREAM];
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143 };
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144
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145
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146 void ngx_http_v3_init_stream(ngx_connection_t *c);
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147 void ngx_http_v3_reset_stream(ngx_connection_t *c);
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148 ngx_int_t ngx_http_v3_init_session(ngx_connection_t *c);
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149 ngx_int_t ngx_http_v3_check_flood(ngx_connection_t *c);
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150 ngx_int_t ngx_http_v3_init(ngx_connection_t *c);
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151 void ngx_http_v3_shutdown(ngx_connection_t *c);
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152
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153 ngx_int_t ngx_http_v3_read_request_body(ngx_http_request_t *r);
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154 ngx_int_t ngx_http_v3_read_unbuffered_request_body(ngx_http_request_t *r);
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155
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156
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157 extern ngx_module_t ngx_http_v3_module;
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158
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159
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160 #endif /* _NGX_HTTP_V3_H_INCLUDED_ */