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annotate src/http/v3/ngx_http_v3_module.c @ 8247:e9891e8ee975 quic

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Configurable transport parameters. - integer parameters can be configured using the following directives: quic_max_idle_timeout quic_max_ack_delay quic_max_packet_size quic_initial_max_data quic_initial_max_stream_data_bidi_local quic_initial_max_stream_data_bidi_remote quic_initial_max_stream_data_uni quic_initial_max_streams_bidi quic_initial_max_streams_uni quic_ack_delay_exponent quic_active_migration quic_active_connection_id_limit - only following parameters are actually sent: active_connection_id_limit initial_max_streams_uni initial_max_streams_bidi initial_max_stream_data_bidi_local initial_max_stream_data_bidi_remote initial_max_stream_data_uni (other parameters are to be added into ngx_quic_create_transport_params() function as needed, should be easy now) - draft 24 and draft 27 are now supported (at compile-time using quic_version macro)
author Vladimir Homutov <vl@nginx.com>
date Fri, 20 Mar 2020 13:47:44 +0300
parents 38c0898b6df7
children abb7c1a4c9d5
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 * Copyright (C) Roman Arutyunyan
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 static ngx_command_t ngx_http_v3_commands[] = {
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14
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15 { ngx_string("quic_max_idle_timeout"),
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16 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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17 ngx_conf_set_msec_slot,
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18 NGX_HTTP_SRV_CONF_OFFSET,
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19 offsetof(ngx_http_v3_srv_conf_t, quic.max_idle_timeout),
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20 NULL },
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21
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22 { ngx_string("quic_max_ack_delay"),
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23 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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24 ngx_conf_set_msec_slot,
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25 NGX_HTTP_SRV_CONF_OFFSET,
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26 offsetof(ngx_http_v3_srv_conf_t, quic.max_ack_delay),
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27 NULL },
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28
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29 { ngx_string("quic_max_packet_size"),
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30 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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31 ngx_conf_set_num_slot,
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32 NGX_HTTP_SRV_CONF_OFFSET,
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33 offsetof(ngx_http_v3_srv_conf_t, quic.max_packet_size),
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34 NULL },
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35
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36 { ngx_string("quic_initial_max_data"),
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37 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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38 ngx_conf_set_num_slot,
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39 NGX_HTTP_SRV_CONF_OFFSET,
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40 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_data),
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41 NULL },
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42
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43 { ngx_string("quic_initial_max_stream_data_bidi_local"),
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44 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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45 ngx_conf_set_num_slot,
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46 NGX_HTTP_SRV_CONF_OFFSET,
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47 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_stream_data_bidi_local),
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48 NULL },
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49
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50 { ngx_string("quic_initial_max_stream_data_bidi_remote"),
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51 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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52 ngx_conf_set_num_slot,
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53 NGX_HTTP_SRV_CONF_OFFSET,
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54 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_stream_data_bidi_remote),
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55 NULL },
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56
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57 { ngx_string("quic_initial_max_stream_data_uni"),
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58 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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59 ngx_conf_set_num_slot,
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60 NGX_HTTP_SRV_CONF_OFFSET,
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61 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_stream_data_uni),
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62 NULL },
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63
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64 { ngx_string("quic_initial_max_streams_bidi"),
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65 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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66 ngx_conf_set_num_slot,
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67 NGX_HTTP_SRV_CONF_OFFSET,
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68 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_streams_bidi),
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69 NULL },
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70
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71 { ngx_string("quic_initial_max_streams_uni"),
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72 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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73 ngx_conf_set_num_slot,
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74 NGX_HTTP_SRV_CONF_OFFSET,
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75 offsetof(ngx_http_v3_srv_conf_t, quic.initial_max_streams_uni),
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76 NULL },
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77
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78 { ngx_string("quic_ack_delay_exponent"),
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79 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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80 ngx_conf_set_num_slot,
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81 NGX_HTTP_SRV_CONF_OFFSET,
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82 offsetof(ngx_http_v3_srv_conf_t, quic.ack_delay_exponent),
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83 NULL },
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84
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85 { ngx_string("quic_active_migration"),
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86 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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87 ngx_conf_set_num_slot,
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88 NGX_HTTP_SRV_CONF_OFFSET,
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89 offsetof(ngx_http_v3_srv_conf_t, quic.disable_active_migration),
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90 NULL },
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91
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92 { ngx_string("quic_active_connection_id_limit"),
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93 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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94 ngx_conf_set_num_slot,
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95 NGX_HTTP_SRV_CONF_OFFSET,
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96 offsetof(ngx_http_v3_srv_conf_t, quic.active_connection_id_limit),
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97 NULL },
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98
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99 ngx_null_command
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100 };
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101
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102
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103 static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf);
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104 static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf,
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105 void *parent, void *child);
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106
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107
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108 static ngx_http_module_t ngx_http_v3_module_ctx = {
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109 NULL, /* preconfiguration */
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110 NULL, /* postconfiguration */
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111
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112 NULL, /* create main configuration */
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113 NULL, /* init main configuration */
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114
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115 ngx_http_v3_create_srv_conf, /* create server configuration */
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116 ngx_http_v3_merge_srv_conf, /* merge server configuration */
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117
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118 NULL, /* create location configuration */
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119 NULL /* merge location configuration */
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120 };
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121
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122
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123 ngx_module_t ngx_http_v3_module = {
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124 NGX_MODULE_V1,
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125 &ngx_http_v3_module_ctx, /* module context */
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126 ngx_http_v3_commands, /* module directives */
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127 NGX_HTTP_MODULE, /* module type */
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128 NULL, /* init master */
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129 NULL, /* init module */
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130 NULL, /* init process */
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131 NULL, /* init thread */
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132 NULL, /* exit thread */
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133 NULL, /* exit process */
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134 NULL, /* exit master */
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135 NGX_MODULE_V1_PADDING
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136 };
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137
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138
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139 static void *
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140 ngx_http_v3_create_srv_conf(ngx_conf_t *cf)
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141 {
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142 ngx_http_v3_srv_conf_t *v3cf;
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143
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144 v3cf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t));
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145 if (v3cf == NULL) {
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146 return NULL;
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147 }
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148
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149 /*
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150 * set by ngx_pcalloc():
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151 * v3cf->quic.original_connection_id = 0;
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152 * v3cf->quic.stateless_reset_token = { 0 }
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153 * conf->quic.preferred_address = NULL
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154 */
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155
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156 v3cf->quic.max_idle_timeout = NGX_CONF_UNSET_MSEC;
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157 v3cf->quic.max_ack_delay = NGX_CONF_UNSET_MSEC;
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158
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159 v3cf->quic.max_packet_size = NGX_CONF_UNSET_UINT;
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160 v3cf->quic.initial_max_data = NGX_CONF_UNSET_UINT;
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161 v3cf->quic.initial_max_stream_data_bidi_local = NGX_CONF_UNSET_UINT;
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162 v3cf->quic.initial_max_stream_data_bidi_remote = NGX_CONF_UNSET_UINT;
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163 v3cf->quic.initial_max_stream_data_uni = NGX_CONF_UNSET_UINT;
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164 v3cf->quic.initial_max_streams_bidi = NGX_CONF_UNSET_UINT;
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165 v3cf->quic.initial_max_streams_uni = NGX_CONF_UNSET_UINT;
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166 v3cf->quic.ack_delay_exponent = NGX_CONF_UNSET_UINT;
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167 v3cf->quic.disable_active_migration = NGX_CONF_UNSET_UINT;
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168 v3cf->quic.active_connection_id_limit = NGX_CONF_UNSET_UINT;
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169
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170 return v3cf;
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171 }
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172
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173
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174 static char *
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175 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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176 {
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177 ngx_http_v3_srv_conf_t *prev = parent;
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178 ngx_http_v3_srv_conf_t *conf = child;
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179
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180 ngx_conf_merge_msec_value(conf->quic.max_idle_timeout,
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181 prev->quic.max_idle_timeout, 10000);
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182
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183 // > 2 ^ 14 is invalid
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184 ngx_conf_merge_msec_value(conf->quic.max_ack_delay,
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185 prev->quic.max_ack_delay, 25);
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186
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187 // < 1200 is invalid
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188 ngx_conf_merge_uint_value(conf->quic.max_packet_size,
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189 prev->quic.max_packet_size, 65527);
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190
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191 ngx_conf_merge_uint_value(conf->quic.initial_max_data,
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192 prev->quic.initial_max_data, 10000000);
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193
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194 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_bidi_local,
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195 prev->quic.initial_max_stream_data_bidi_local,
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196 255);
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197
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198 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_bidi_remote,
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199 prev->quic.initial_max_stream_data_bidi_remote,
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200 255);
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201
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202 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_uni,
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203 prev->quic.initial_max_stream_data_uni, 255);
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204
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205 ngx_conf_merge_uint_value(conf->quic.initial_max_streams_bidi,
e9891e8ee975 Configurable transport parameters.
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206 prev->quic.initial_max_streams_bidi, 16);
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207
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208 ngx_conf_merge_uint_value(conf->quic.initial_max_streams_uni,
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209 prev->quic.initial_max_streams_uni, 16);
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210
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211 // > 20 is invalid
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212 ngx_conf_merge_uint_value(conf->quic.ack_delay_exponent,
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213 prev->quic.ack_delay_exponent, 3);
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214
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215 ngx_conf_merge_uint_value(conf->quic.disable_active_migration,
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diff changeset
216 prev->quic.disable_active_migration, 1);
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217
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218 // < 2 is invalid
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219 ngx_conf_merge_uint_value(conf->quic.active_connection_id_limit,
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diff changeset
220 prev->quic.active_connection_id_limit, 2);
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221
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222 return NGX_CONF_OK;
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223 }
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224