Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_module.c @ 8297:0b95c2041887 quic
HTTP/3: http3 variable.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Sat, 28 Mar 2020 18:41:31 +0300 |
parents | 8e54a17dabee |
children | 0f9e9786b90d |
rev | line source |
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2 /* | |
3 * Copyright (C) Nginx, Inc. | |
4 * Copyright (C) Roman Arutyunyan | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
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 |
8215 | 99 ngx_null_command |
100 }; | |
101 | |
102 | |
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103 static ngx_int_t ngx_http_variable_quic(ngx_http_request_t *r, |
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104 ngx_http_variable_value_t *v, uintptr_t data); |
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105 static ngx_int_t ngx_http_variable_http3(ngx_http_request_t *r, |
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106 ngx_http_variable_value_t *v, uintptr_t data); |
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107 static ngx_int_t ngx_http_v3_add_variables(ngx_conf_t *cf); |
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108 static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf); |
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109 static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, |
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110 void *parent, void *child); |
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111 |
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112 |
8215 | 113 static ngx_http_module_t ngx_http_v3_module_ctx = { |
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114 ngx_http_v3_add_variables, /* preconfiguration */ |
8215 | 115 NULL, /* postconfiguration */ |
116 | |
117 NULL, /* create main configuration */ | |
118 NULL, /* init main configuration */ | |
119 | |
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120 ngx_http_v3_create_srv_conf, /* create server configuration */ |
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121 ngx_http_v3_merge_srv_conf, /* merge server configuration */ |
8215 | 122 |
123 NULL, /* create location configuration */ | |
124 NULL /* merge location configuration */ | |
125 }; | |
126 | |
127 | |
128 ngx_module_t ngx_http_v3_module = { | |
129 NGX_MODULE_V1, | |
130 &ngx_http_v3_module_ctx, /* module context */ | |
131 ngx_http_v3_commands, /* module directives */ | |
132 NGX_HTTP_MODULE, /* module type */ | |
133 NULL, /* init master */ | |
134 NULL, /* init module */ | |
135 NULL, /* init process */ | |
136 NULL, /* init thread */ | |
137 NULL, /* exit thread */ | |
138 NULL, /* exit process */ | |
139 NULL, /* exit master */ | |
140 NGX_MODULE_V1_PADDING | |
141 }; | |
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142 |
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143 |
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144 static ngx_http_variable_t ngx_http_v3_vars[] = { |
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145 { ngx_string("quic"), NULL, ngx_http_variable_quic, |
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146 0, 0, 0 }, |
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147 |
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148 { ngx_string("http3"), NULL, ngx_http_variable_http3, |
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149 0, 0, 0 }, |
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150 |
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151 ngx_http_null_variable |
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152 }; |
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153 |
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154 |
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155 static ngx_int_t |
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156 ngx_http_variable_quic(ngx_http_request_t *r, |
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157 ngx_http_variable_value_t *v, uintptr_t data) |
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158 { |
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159 if (r->connection->qs) { |
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160 |
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161 v->len = 4; |
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162 v->valid = 1; |
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163 v->no_cacheable = 1; |
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164 v->not_found = 0; |
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165 v->data = (u_char *) "quic"; |
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166 return NGX_OK; |
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167 } |
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168 |
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169 v->not_found = 1; |
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170 |
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171 return NGX_OK; |
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172 } |
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173 |
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174 |
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|
175 static ngx_int_t |
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176 ngx_http_variable_http3(ngx_http_request_t *r, |
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177 ngx_http_variable_value_t *v, uintptr_t data) |
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178 { |
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179 v->valid = 1; |
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180 v->no_cacheable = 1; |
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181 v->not_found = 0; |
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182 |
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183 v->data = ngx_pnalloc(r->pool, sizeof("h3-xx") - 1); |
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184 if (v->data == NULL) { |
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185 return NGX_ERROR; |
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186 } |
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187 |
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|
188 v->len = ngx_sprintf(v->data, "h3-%d", NGX_QUIC_DRAFT_VERSION) - v->data; |
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189 |
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190 return NGX_OK; |
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|
191 } |
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|
192 |
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193 |
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194 static ngx_int_t |
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195 ngx_http_v3_add_variables(ngx_conf_t *cf) |
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196 { |
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197 ngx_http_variable_t *var, *v; |
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198 |
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199 for (v = ngx_http_v3_vars; v->name.len; v++) { |
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200 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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201 if (var == NULL) { |
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202 return NGX_ERROR; |
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203 } |
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|
204 |
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|
205 var->get_handler = v->get_handler; |
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206 var->data = v->data; |
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|
207 } |
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|
208 |
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209 return NGX_OK; |
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|
210 } |
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|
211 |
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|
212 |
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213 |
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214 static void * |
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215 ngx_http_v3_create_srv_conf(ngx_conf_t *cf) |
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216 { |
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|
217 ngx_http_v3_srv_conf_t *v3cf; |
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218 |
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219 v3cf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t)); |
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220 if (v3cf == NULL) { |
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|
221 return NULL; |
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|
222 } |
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|
223 |
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|
224 /* |
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225 * set by ngx_pcalloc(): |
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226 * v3cf->quic.original_connection_id = 0; |
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227 * v3cf->quic.stateless_reset_token = { 0 } |
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228 * conf->quic.preferred_address = NULL |
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229 */ |
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|
230 |
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231 v3cf->quic.max_idle_timeout = NGX_CONF_UNSET_MSEC; |
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232 v3cf->quic.max_ack_delay = NGX_CONF_UNSET_MSEC; |
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233 |
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234 v3cf->quic.max_packet_size = NGX_CONF_UNSET_UINT; |
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235 v3cf->quic.initial_max_data = NGX_CONF_UNSET_UINT; |
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236 v3cf->quic.initial_max_stream_data_bidi_local = NGX_CONF_UNSET_UINT; |
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237 v3cf->quic.initial_max_stream_data_bidi_remote = NGX_CONF_UNSET_UINT; |
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238 v3cf->quic.initial_max_stream_data_uni = NGX_CONF_UNSET_UINT; |
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239 v3cf->quic.initial_max_streams_bidi = NGX_CONF_UNSET_UINT; |
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240 v3cf->quic.initial_max_streams_uni = NGX_CONF_UNSET_UINT; |
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241 v3cf->quic.ack_delay_exponent = NGX_CONF_UNSET_UINT; |
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|
242 v3cf->quic.disable_active_migration = NGX_CONF_UNSET_UINT; |
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|
243 v3cf->quic.active_connection_id_limit = NGX_CONF_UNSET_UINT; |
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244 |
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|
245 return v3cf; |
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|
246 } |
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|
247 |
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|
248 |
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|
249 static char * |
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250 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
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251 { |
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252 ngx_http_v3_srv_conf_t *prev = parent; |
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253 ngx_http_v3_srv_conf_t *conf = child; |
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254 |
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|
255 ngx_conf_merge_msec_value(conf->quic.max_idle_timeout, |
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|
256 prev->quic.max_idle_timeout, 60000); |
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257 |
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258 // > 2 ^ 14 is invalid |
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|
259 ngx_conf_merge_msec_value(conf->quic.max_ack_delay, |
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|
260 prev->quic.max_ack_delay, |
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Limit output QUIC packets with client max_packet_size.
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|
261 NGX_QUIC_DEFAULT_MAX_ACK_DELAY); |
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|
262 |
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|
263 // < 1200 is invalid |
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|
264 ngx_conf_merge_uint_value(conf->quic.max_packet_size, |
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|
265 prev->quic.max_packet_size, |
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|
266 NGX_QUIC_DEFAULT_MAX_PACKET_SIZE); |
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267 |
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268 ngx_conf_merge_uint_value(conf->quic.initial_max_data, |
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269 prev->quic.initial_max_data, 10000000); |
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270 |
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271 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_bidi_local, |
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272 prev->quic.initial_max_stream_data_bidi_local, |
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273 255); |
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274 |
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275 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_bidi_remote, |
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276 prev->quic.initial_max_stream_data_bidi_remote, |
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277 255); |
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278 |
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279 ngx_conf_merge_uint_value(conf->quic.initial_max_stream_data_uni, |
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280 prev->quic.initial_max_stream_data_uni, 255); |
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281 |
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282 ngx_conf_merge_uint_value(conf->quic.initial_max_streams_bidi, |
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283 prev->quic.initial_max_streams_bidi, 16); |
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284 |
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285 ngx_conf_merge_uint_value(conf->quic.initial_max_streams_uni, |
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286 prev->quic.initial_max_streams_uni, 16); |
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287 |
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288 // > 20 is invalid |
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289 ngx_conf_merge_uint_value(conf->quic.ack_delay_exponent, |
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290 prev->quic.ack_delay_exponent, |
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291 NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT); |
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292 |
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293 ngx_conf_merge_uint_value(conf->quic.disable_active_migration, |
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294 prev->quic.disable_active_migration, 1); |
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295 |
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296 // < 2 is invalid |
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297 ngx_conf_merge_uint_value(conf->quic.active_connection_id_limit, |
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298 prev->quic.active_connection_id_limit, 2); |
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299 |
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300 return NGX_CONF_OK; |
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301 } |
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302 |