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annotate src/http/v3/ngx_http_v3.h @ 9052:2e51cf3ffd90 quic

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QUIC: defer stream removal until all its data is acked. Previously, stream was kept alive until all its data is sent. This resulted in disabling retransmission of final part of stream when QUIC connection was closed right after closing stream connection.
author Roman Arutyunyan <arut@nginx.com>
date Mon, 22 Aug 2022 15:33:23 +0400
parents efbcdb9b37dc
children 6546c2ae1c7b
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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25 #define NGX_HTTP_V3_VARLEN_INT_LEN 4
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26 #define NGX_HTTP_V3_PREFIX_INT_LEN 11
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27
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28 #define NGX_HTTP_V3_STREAM_CONTROL 0x00
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29 #define NGX_HTTP_V3_STREAM_PUSH 0x01
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30 #define NGX_HTTP_V3_STREAM_ENCODER 0x02
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31 #define NGX_HTTP_V3_STREAM_DECODER 0x03
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32
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33 #define NGX_HTTP_V3_FRAME_DATA 0x00
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34 #define NGX_HTTP_V3_FRAME_HEADERS 0x01
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35 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03
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36 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04
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37 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05
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38 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07
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39 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d
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40
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41 #define NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY 0x01
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42 #define NGX_HTTP_V3_PARAM_MAX_FIELD_SECTION_SIZE 0x06
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43 #define NGX_HTTP_V3_PARAM_BLOCKED_STREAMS 0x07
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44
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45 #define NGX_HTTP_V3_MAX_TABLE_CAPACITY 4096
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46
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47 #define NGX_HTTP_V3_STREAM_CLIENT_CONTROL 0
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48 #define NGX_HTTP_V3_STREAM_SERVER_CONTROL 1
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49 #define NGX_HTTP_V3_STREAM_CLIENT_ENCODER 2
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50 #define NGX_HTTP_V3_STREAM_SERVER_ENCODER 3
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51 #define NGX_HTTP_V3_STREAM_CLIENT_DECODER 4
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52 #define NGX_HTTP_V3_STREAM_SERVER_DECODER 5
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53 #define NGX_HTTP_V3_MAX_KNOWN_STREAM 6
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54 #define NGX_HTTP_V3_MAX_UNI_STREAMS 3
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55
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56 /* HTTP/3 errors */
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57 #define NGX_HTTP_V3_ERR_NO_ERROR 0x100
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58 #define NGX_HTTP_V3_ERR_GENERAL_PROTOCOL_ERROR 0x101
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59 #define NGX_HTTP_V3_ERR_INTERNAL_ERROR 0x102
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60 #define NGX_HTTP_V3_ERR_STREAM_CREATION_ERROR 0x103
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61 #define NGX_HTTP_V3_ERR_CLOSED_CRITICAL_STREAM 0x104
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62 #define NGX_HTTP_V3_ERR_FRAME_UNEXPECTED 0x105
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63 #define NGX_HTTP_V3_ERR_FRAME_ERROR 0x106
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64 #define NGX_HTTP_V3_ERR_EXCESSIVE_LOAD 0x107
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65 #define NGX_HTTP_V3_ERR_ID_ERROR 0x108
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66 #define NGX_HTTP_V3_ERR_SETTINGS_ERROR 0x109
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67 #define NGX_HTTP_V3_ERR_MISSING_SETTINGS 0x10a
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68 #define NGX_HTTP_V3_ERR_REQUEST_REJECTED 0x10b
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69 #define NGX_HTTP_V3_ERR_REQUEST_CANCELLED 0x10c
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70 #define NGX_HTTP_V3_ERR_REQUEST_INCOMPLETE 0x10d
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71 #define NGX_HTTP_V3_ERR_CONNECT_ERROR 0x10f
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72 #define NGX_HTTP_V3_ERR_VERSION_FALLBACK 0x110
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73
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74 /* QPACK errors */
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75 #define NGX_HTTP_V3_ERR_DECOMPRESSION_FAILED 0x200
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76 #define NGX_HTTP_V3_ERR_ENCODER_STREAM_ERROR 0x201
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77 #define NGX_HTTP_V3_ERR_DECODER_STREAM_ERROR 0x202
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80 #define ngx_http_quic_get_connection(c) \
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81 ((ngx_http_connection_t *) ((c)->quic ? (c)->quic->parent->data \
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82 : (c)->data))
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83
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84 #define ngx_http_v3_get_session(c) ngx_http_quic_get_connection(c)->v3_session
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85
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86 #define ngx_http_v3_get_module_loc_conf(c, module) \
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87 ngx_http_get_module_loc_conf(ngx_http_quic_get_connection(c)->conf_ctx, \
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88 module)
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89
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90 #define ngx_http_v3_get_module_srv_conf(c, module) \
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91 ngx_http_get_module_srv_conf(ngx_http_quic_get_connection(c)->conf_ctx, \
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92 module)
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94 #define ngx_http_v3_finalize_connection(c, code, reason) \
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95 ngx_quic_finalize_connection((c)->quic ? (c)->quic->parent : (c), \
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96 code, reason)
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98 #define ngx_http_v3_shutdown_connection(c, code, reason) \
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99 ngx_quic_shutdown_connection((c)->quic ? (c)->quic->parent : (c), \
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100 code, reason)
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101
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103 typedef struct {
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104 size_t max_table_capacity;
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105 ngx_uint_t max_blocked_streams;
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106 ngx_uint_t max_concurrent_pushes;
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107 ngx_uint_t max_concurrent_streams;
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108 #if (NGX_HTTP_V3_HQ)
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109 ngx_flag_t hq;
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110 #endif
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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 typedef struct {
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116 ngx_flag_t push_preload;
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117 ngx_flag_t push;
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118 ngx_array_t *pushes;
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119 } ngx_http_v3_loc_conf_t;
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120
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121
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122 struct ngx_http_v3_parse_s {
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123 size_t header_limit;
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124 ngx_http_v3_parse_headers_t headers;
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125 ngx_http_v3_parse_data_t body;
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126 ngx_array_t *cookies;
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127 };
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128
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129
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130 struct ngx_http_v3_session_s {
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131 ngx_http_v3_dynamic_table_t table;
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132
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133 ngx_event_t keepalive;
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134 ngx_uint_t nrequests;
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135
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136 ngx_queue_t blocked;
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137 ngx_uint_t nblocked;
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138
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139 ngx_queue_t pushing;
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140 ngx_uint_t npushing;
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141 uint64_t next_push_id;
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142 uint64_t max_push_id;
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143 uint64_t goaway_push_id;
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144
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145 off_t total_bytes;
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146 off_t payload_bytes;
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147
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148 ngx_uint_t goaway; /* unsigned goaway:1; */
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149
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150 ngx_connection_t *known_streams[NGX_HTTP_V3_MAX_KNOWN_STREAM];
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151 };
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152
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153
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parents: 8653
diff changeset
154 void ngx_http_v3_init(ngx_connection_t *c);
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155 void ngx_http_v3_reset_connection(ngx_connection_t *c);
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156 ngx_int_t ngx_http_v3_init_session(ngx_connection_t *c);
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157 ngx_int_t ngx_http_v3_check_flood(ngx_connection_t *c);
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158
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159 ngx_int_t ngx_http_v3_read_request_body(ngx_http_request_t *r);
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160 ngx_int_t ngx_http_v3_read_unbuffered_request_body(ngx_http_request_t *r);
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161
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162
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163 extern ngx_module_t ngx_http_v3_module;
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164
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165
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166 #endif /* _NGX_HTTP_V3_H_INCLUDED_ */