Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_module.c @ 8497:0596fe1aee16 quic
HTTP/3: server pushes.
New directives are added:
- http3_max_concurrent_pushes
- http3_push
- http3_push_preload
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Thu, 23 Jul 2020 13:41:24 +0300 |
| parents | e533a352d118 |
| children | ae2e68f206f9 |
| rev | line source |
|---|---|
| 8215 | 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); |
| 8497 | 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 |
| 8215 | 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 |
| 8497 | 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 | |
| 8215 | 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 */ |
| 8215 | 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 */ |
| 8215 | 82 |
| 8497 | 83 ngx_http_v3_create_loc_conf, /* create location configuration */ |
| 84 ngx_http_v3_merge_loc_conf /* merge location configuration */ | |
| 8215 | 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; |
| 8497 | 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 |
| 8497 | 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 } |
| 8497 | 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 } |