Mercurial > hg > nginx-quic
annotate src/http/v3/ngx_http_v3_module.c @ 8133:1d4417e4f2d0 quic
QUIC: fixed measuring ACK Delay against 0-RTT packets.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Tue, 06 Oct 2020 18:08:55 +0100 |
parents | 0596fe1aee16 |
children | ae2e68f206f9 |
rev | line source |
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7681 | 1 |
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 | |
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13 static ngx_int_t ngx_http_variable_http3(ngx_http_request_t *r, |
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14 ngx_http_variable_value_t *v, uintptr_t data); |
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15 static ngx_int_t ngx_http_v3_add_variables(ngx_conf_t *cf); |
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16 static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf); |
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17 static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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18 void *child); |
8015 | 19 static void *ngx_http_v3_create_loc_conf(ngx_conf_t *cf); |
20 static char *ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent, | |
21 void *child); | |
22 static char *ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
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23 |
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24 |
7681 | 25 static ngx_command_t ngx_http_v3_commands[] = { |
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26 |
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27 { ngx_string("http3_max_field_size"), |
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28 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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29 ngx_conf_set_size_slot, |
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30 NGX_HTTP_SRV_CONF_OFFSET, |
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31 offsetof(ngx_http_v3_srv_conf_t, max_field_size), |
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32 NULL }, |
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33 |
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34 { ngx_string("http3_max_table_capacity"), |
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35 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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36 ngx_conf_set_size_slot, |
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37 NGX_HTTP_SRV_CONF_OFFSET, |
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38 offsetof(ngx_http_v3_srv_conf_t, max_table_capacity), |
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39 NULL }, |
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40 |
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41 { ngx_string("http3_max_blocked_streams"), |
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42 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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43 ngx_conf_set_num_slot, |
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44 NGX_HTTP_SRV_CONF_OFFSET, |
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45 offsetof(ngx_http_v3_srv_conf_t, max_blocked_streams), |
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46 NULL }, |
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47 |
8015 | 48 { ngx_string("http3_max_concurrent_pushes"), |
49 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
50 ngx_conf_set_num_slot, | |
51 NGX_HTTP_SRV_CONF_OFFSET, | |
52 offsetof(ngx_http_v3_srv_conf_t, max_concurrent_pushes), | |
53 NULL }, | |
54 | |
55 { ngx_string("http3_push"), | |
56 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
57 ngx_http_v3_push, | |
58 NGX_HTTP_LOC_CONF_OFFSET, | |
59 0, | |
60 NULL }, | |
61 | |
62 { ngx_string("http3_push_preload"), | |
63 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
64 ngx_conf_set_flag_slot, | |
65 NGX_HTTP_LOC_CONF_OFFSET, | |
66 offsetof(ngx_http_v3_loc_conf_t, push_preload), | |
67 NULL }, | |
68 | |
7681 | 69 ngx_null_command |
70 }; | |
71 | |
72 | |
73 static ngx_http_module_t ngx_http_v3_module_ctx = { | |
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74 ngx_http_v3_add_variables, /* preconfiguration */ |
7681 | 75 NULL, /* postconfiguration */ |
76 | |
77 NULL, /* create main configuration */ | |
78 NULL, /* init main configuration */ | |
79 | |
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80 ngx_http_v3_create_srv_conf, /* create server configuration */ |
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81 ngx_http_v3_merge_srv_conf, /* merge server configuration */ |
7681 | 82 |
8015 | 83 ngx_http_v3_create_loc_conf, /* create location configuration */ |
84 ngx_http_v3_merge_loc_conf /* merge location configuration */ | |
7681 | 85 }; |
86 | |
87 | |
88 ngx_module_t ngx_http_v3_module = { | |
89 NGX_MODULE_V1, | |
90 &ngx_http_v3_module_ctx, /* module context */ | |
91 ngx_http_v3_commands, /* module directives */ | |
92 NGX_HTTP_MODULE, /* module type */ | |
93 NULL, /* init master */ | |
94 NULL, /* init module */ | |
95 NULL, /* init process */ | |
96 NULL, /* init thread */ | |
97 NULL, /* exit thread */ | |
98 NULL, /* exit process */ | |
99 NULL, /* exit master */ | |
100 NGX_MODULE_V1_PADDING | |
101 }; | |
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102 |
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103 |
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104 static ngx_http_variable_t ngx_http_v3_vars[] = { |
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105 |
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106 { ngx_string("http3"), NULL, ngx_http_variable_http3, 0, 0, 0 }, |
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107 |
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108 ngx_http_null_variable |
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109 }; |
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110 |
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111 |
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112 static ngx_int_t |
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113 ngx_http_variable_http3(ngx_http_request_t *r, |
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114 ngx_http_variable_value_t *v, uintptr_t data) |
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115 { |
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116 v->valid = 1; |
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117 v->no_cacheable = 1; |
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118 v->not_found = 0; |
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119 |
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120 v->data = ngx_pnalloc(r->pool, sizeof("h3-xx") - 1); |
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121 if (v->data == NULL) { |
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122 return NGX_ERROR; |
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123 } |
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124 |
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125 v->len = ngx_sprintf(v->data, "h3-%d", NGX_QUIC_DRAFT_VERSION) - v->data; |
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126 |
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127 return NGX_OK; |
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128 } |
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129 |
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130 |
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131 static ngx_int_t |
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132 ngx_http_v3_add_variables(ngx_conf_t *cf) |
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133 { |
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134 ngx_http_variable_t *var, *v; |
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135 |
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136 for (v = ngx_http_v3_vars; v->name.len; v++) { |
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137 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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138 if (var == NULL) { |
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139 return NGX_ERROR; |
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140 } |
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141 |
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142 var->get_handler = v->get_handler; |
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143 var->data = v->data; |
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144 } |
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145 |
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146 return NGX_OK; |
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147 } |
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148 |
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149 |
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150 static void * |
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151 ngx_http_v3_create_srv_conf(ngx_conf_t *cf) |
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152 { |
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153 ngx_http_v3_srv_conf_t *h3scf; |
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154 |
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155 h3scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t)); |
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156 if (h3scf == NULL) { |
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157 return NULL; |
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158 } |
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159 |
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160 h3scf->max_field_size = NGX_CONF_UNSET_SIZE; |
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161 h3scf->max_table_capacity = NGX_CONF_UNSET_SIZE; |
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162 h3scf->max_blocked_streams = NGX_CONF_UNSET_UINT; |
8015 | 163 h3scf->max_concurrent_pushes = NGX_CONF_UNSET_UINT; |
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164 |
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165 return h3scf; |
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166 } |
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167 |
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168 |
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169 static char * |
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170 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
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171 { |
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172 ngx_http_v3_srv_conf_t *prev = parent; |
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173 ngx_http_v3_srv_conf_t *conf = child; |
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174 |
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175 ngx_conf_merge_size_value(conf->max_field_size, |
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176 prev->max_field_size, |
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177 NGX_HTTP_V3_DEFAULT_MAX_FIELD_SIZE); |
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178 |
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179 ngx_conf_merge_size_value(conf->max_table_capacity, |
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180 prev->max_table_capacity, |
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181 NGX_HTTP_V3_DEFAULT_MAX_TABLE_CAPACITY); |
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182 |
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183 ngx_conf_merge_uint_value(conf->max_blocked_streams, |
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184 prev->max_blocked_streams, |
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185 NGX_HTTP_V3_DEFAULT_MAX_BLOCKED_STREAMS); |
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186 |
8015 | 187 ngx_conf_merge_uint_value(conf->max_concurrent_pushes, |
188 prev->max_concurrent_pushes, | |
189 NGX_HTTP_V3_DEFAULT_MAX_CONCURRENT_PUSHES); | |
190 | |
191 return NGX_CONF_OK; | |
192 } | |
193 | |
194 | |
195 static void * | |
196 ngx_http_v3_create_loc_conf(ngx_conf_t *cf) | |
197 { | |
198 ngx_http_v3_loc_conf_t *h3lcf; | |
199 | |
200 h3lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_loc_conf_t)); | |
201 if (h3lcf == NULL) { | |
202 return NULL; | |
203 } | |
204 | |
205 /* | |
206 * set by ngx_pcalloc(): | |
207 * | |
208 * h3lcf->pushes = NULL; | |
209 */ | |
210 | |
211 h3lcf->push_preload = NGX_CONF_UNSET; | |
212 h3lcf->push = NGX_CONF_UNSET; | |
213 | |
214 return h3lcf; | |
215 } | |
216 | |
217 | |
218 static char * | |
219 ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
220 { | |
221 ngx_http_v3_loc_conf_t *prev = parent; | |
222 ngx_http_v3_loc_conf_t *conf = child; | |
223 | |
224 ngx_conf_merge_value(conf->push, prev->push, 1); | |
225 | |
226 if (conf->push && conf->pushes == NULL) { | |
227 conf->pushes = prev->pushes; | |
228 } | |
229 | |
230 ngx_conf_merge_value(conf->push_preload, prev->push_preload, 0); | |
231 | |
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232 return NGX_CONF_OK; |
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233 } |
8015 | 234 |
235 | |
236 static char * | |
237 ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
238 { | |
239 ngx_http_v3_loc_conf_t *h3lcf = conf; | |
240 | |
241 ngx_str_t *value; | |
242 ngx_http_complex_value_t *cv; | |
243 ngx_http_compile_complex_value_t ccv; | |
244 | |
245 value = cf->args->elts; | |
246 | |
247 if (ngx_strcmp(value[1].data, "off") == 0) { | |
248 | |
249 if (h3lcf->pushes) { | |
250 return "\"off\" parameter cannot be used with URI"; | |
251 } | |
252 | |
253 if (h3lcf->push == 0) { | |
254 return "is duplicate"; | |
255 } | |
256 | |
257 h3lcf->push = 0; | |
258 return NGX_CONF_OK; | |
259 } | |
260 | |
261 if (h3lcf->push == 0) { | |
262 return "URI cannot be used with \"off\" parameter"; | |
263 } | |
264 | |
265 h3lcf->push = 1; | |
266 | |
267 if (h3lcf->pushes == NULL) { | |
268 h3lcf->pushes = ngx_array_create(cf->pool, 1, | |
269 sizeof(ngx_http_complex_value_t)); | |
270 if (h3lcf->pushes == NULL) { | |
271 return NGX_CONF_ERROR; | |
272 } | |
273 } | |
274 | |
275 cv = ngx_array_push(h3lcf->pushes); | |
276 if (cv == NULL) { | |
277 return NGX_CONF_ERROR; | |
278 } | |
279 | |
280 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
281 | |
282 ccv.cf = cf; | |
283 ccv.value = &value[1]; | |
284 ccv.complex_value = cv; | |
285 | |
286 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
287 return NGX_CONF_ERROR; | |
288 } | |
289 | |
290 return NGX_CONF_OK; | |
291 } |