Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_module.c @ 9158:ad3d34ddfdcc
QUIC: "handshake_timeout" configuration parameter.
Previously QUIC did not have such parameter and handshake duration was
controlled by HTTP/3. However that required creating and storing HTTP/3
session on first client datagram. Apparently there's no convenient way to
store the session object until QUIC handshake is complete. In the followup
patches session creation will be postponed to init() callback.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Wed, 13 Sep 2023 17:59:37 +0400 |
parents | f742b1b46901 |
children |
rev | line source |
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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_v3_variable(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); |
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19 static char *ngx_http_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd, |
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20 void *conf); |
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21 |
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22 |
8215 | 23 static ngx_command_t ngx_http_v3_commands[] = { |
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24 |
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25 { ngx_string("http3"), |
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26 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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27 ngx_conf_set_flag_slot, |
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28 NGX_HTTP_SRV_CONF_OFFSET, |
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29 offsetof(ngx_http_v3_srv_conf_t, enable), |
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30 NULL }, |
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31 |
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32 { ngx_string("http3_hq"), |
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33 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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34 ngx_conf_set_flag_slot, |
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35 NGX_HTTP_SRV_CONF_OFFSET, |
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36 offsetof(ngx_http_v3_srv_conf_t, enable_hq), |
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37 NULL }, |
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38 |
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39 { ngx_string("http3_max_concurrent_streams"), |
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40 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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41 ngx_conf_set_num_slot, |
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42 NGX_HTTP_SRV_CONF_OFFSET, |
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43 offsetof(ngx_http_v3_srv_conf_t, max_concurrent_streams), |
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44 NULL }, |
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45 |
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46 { ngx_string("http3_stream_buffer_size"), |
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47 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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48 ngx_conf_set_size_slot, |
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49 NGX_HTTP_SRV_CONF_OFFSET, |
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50 offsetof(ngx_http_v3_srv_conf_t, quic.stream_buffer_size), |
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51 NULL }, |
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52 |
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53 { ngx_string("quic_retry"), |
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54 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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55 ngx_conf_set_flag_slot, |
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56 NGX_HTTP_SRV_CONF_OFFSET, |
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57 offsetof(ngx_http_v3_srv_conf_t, quic.retry), |
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58 NULL }, |
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59 |
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60 { ngx_string("quic_gso"), |
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61 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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62 ngx_conf_set_flag_slot, |
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63 NGX_HTTP_SRV_CONF_OFFSET, |
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64 offsetof(ngx_http_v3_srv_conf_t, quic.gso_enabled), |
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65 NULL }, |
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66 |
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67 { ngx_string("quic_host_key"), |
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68 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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69 ngx_http_quic_host_key, |
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70 NGX_HTTP_SRV_CONF_OFFSET, |
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71 0, |
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72 NULL }, |
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73 |
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74 { ngx_string("quic_active_connection_id_limit"), |
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75 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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76 ngx_conf_set_num_slot, |
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77 NGX_HTTP_SRV_CONF_OFFSET, |
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78 offsetof(ngx_http_v3_srv_conf_t, quic.active_connection_id_limit), |
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79 NULL }, |
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80 |
8215 | 81 ngx_null_command |
82 }; | |
83 | |
84 | |
85 static ngx_http_module_t ngx_http_v3_module_ctx = { | |
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86 ngx_http_v3_add_variables, /* preconfiguration */ |
8215 | 87 NULL, /* postconfiguration */ |
88 | |
89 NULL, /* create main configuration */ | |
90 NULL, /* init main configuration */ | |
91 | |
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92 ngx_http_v3_create_srv_conf, /* create server configuration */ |
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93 ngx_http_v3_merge_srv_conf, /* merge server configuration */ |
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95 NULL, /* create location configuration */ |
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96 NULL /* merge location configuration */ |
8215 | 97 }; |
98 | |
99 | |
100 ngx_module_t ngx_http_v3_module = { | |
101 NGX_MODULE_V1, | |
102 &ngx_http_v3_module_ctx, /* module context */ | |
103 ngx_http_v3_commands, /* module directives */ | |
104 NGX_HTTP_MODULE, /* module type */ | |
105 NULL, /* init master */ | |
106 NULL, /* init module */ | |
107 NULL, /* init process */ | |
108 NULL, /* init thread */ | |
109 NULL, /* exit thread */ | |
110 NULL, /* exit process */ | |
111 NULL, /* exit master */ | |
112 NGX_MODULE_V1_PADDING | |
113 }; | |
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114 |
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115 |
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116 static ngx_http_variable_t ngx_http_v3_vars[] = { |
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117 |
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118 { ngx_string("http3"), NULL, ngx_http_v3_variable, 0, 0, 0 }, |
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119 |
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120 ngx_http_null_variable |
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121 }; |
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122 |
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123 static ngx_str_t ngx_http_quic_salt = ngx_string("ngx_quic"); |
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124 |
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125 |
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126 static ngx_int_t |
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127 ngx_http_v3_variable(ngx_http_request_t *r, |
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128 ngx_http_variable_value_t *v, uintptr_t data) |
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129 { |
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130 ngx_http_v3_session_t *h3c; |
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131 |
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132 if (r->connection->quic) { |
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133 h3c = ngx_http_v3_get_session(r->connection); |
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134 |
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135 if (h3c->hq) { |
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136 v->len = sizeof("hq") - 1; |
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137 v->valid = 1; |
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138 v->no_cacheable = 0; |
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139 v->not_found = 0; |
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140 v->data = (u_char *) "hq"; |
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141 |
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142 return NGX_OK; |
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143 } |
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144 |
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145 v->len = sizeof("h3") - 1; |
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146 v->valid = 1; |
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147 v->no_cacheable = 0; |
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148 v->not_found = 0; |
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149 v->data = (u_char *) "h3"; |
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150 |
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151 return NGX_OK; |
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152 } |
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153 |
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154 *v = ngx_http_variable_null_value; |
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155 |
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156 return NGX_OK; |
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157 } |
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158 |
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159 |
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160 static ngx_int_t |
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161 ngx_http_v3_add_variables(ngx_conf_t *cf) |
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162 { |
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163 ngx_http_variable_t *var, *v; |
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164 |
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165 for (v = ngx_http_v3_vars; v->name.len; v++) { |
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166 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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167 if (var == NULL) { |
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168 return NGX_ERROR; |
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169 } |
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170 |
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171 var->get_handler = v->get_handler; |
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172 var->data = v->data; |
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173 } |
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174 |
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175 return NGX_OK; |
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176 } |
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177 |
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178 |
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179 static void * |
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180 ngx_http_v3_create_srv_conf(ngx_conf_t *cf) |
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181 { |
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182 ngx_http_v3_srv_conf_t *h3scf; |
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183 |
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184 h3scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t)); |
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185 if (h3scf == NULL) { |
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186 return NULL; |
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187 } |
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188 |
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189 /* |
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190 * set by ngx_pcalloc(): |
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191 * |
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192 * h3scf->quic.host_key = { 0, NULL } |
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193 * h3scf->quic.stream_reject_code_uni = 0; |
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194 * h3scf->quic.disable_active_migration = 0; |
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195 * h3scf->quic.idle_timeout = 0; |
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196 * h3scf->max_blocked_streams = 0; |
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197 */ |
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198 |
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199 h3scf->enable = NGX_CONF_UNSET; |
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200 h3scf->enable_hq = NGX_CONF_UNSET; |
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201 h3scf->max_table_capacity = NGX_HTTP_V3_MAX_TABLE_CAPACITY; |
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202 h3scf->max_concurrent_streams = NGX_CONF_UNSET_UINT; |
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203 |
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204 h3scf->quic.stream_buffer_size = NGX_CONF_UNSET_SIZE; |
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205 h3scf->quic.max_concurrent_streams_bidi = NGX_CONF_UNSET_UINT; |
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206 h3scf->quic.max_concurrent_streams_uni = NGX_HTTP_V3_MAX_UNI_STREAMS; |
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207 h3scf->quic.retry = NGX_CONF_UNSET; |
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208 h3scf->quic.gso_enabled = NGX_CONF_UNSET; |
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209 h3scf->quic.stream_close_code = NGX_HTTP_V3_ERR_NO_ERROR; |
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210 h3scf->quic.stream_reject_code_bidi = NGX_HTTP_V3_ERR_REQUEST_REJECTED; |
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211 h3scf->quic.active_connection_id_limit = NGX_CONF_UNSET_UINT; |
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212 |
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213 h3scf->quic.init = ngx_http_v3_init; |
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214 h3scf->quic.shutdown = ngx_http_v3_shutdown; |
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215 |
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216 return h3scf; |
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217 } |
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218 |
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219 |
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220 static char * |
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221 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
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222 { |
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223 ngx_http_v3_srv_conf_t *prev = parent; |
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224 ngx_http_v3_srv_conf_t *conf = child; |
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225 |
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226 ngx_http_ssl_srv_conf_t *sscf; |
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227 ngx_http_core_srv_conf_t *cscf; |
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228 |
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229 ngx_conf_merge_value(conf->enable, prev->enable, 1); |
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230 |
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231 ngx_conf_merge_value(conf->enable_hq, prev->enable_hq, 0); |
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232 |
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233 ngx_conf_merge_uint_value(conf->max_concurrent_streams, |
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234 prev->max_concurrent_streams, 128); |
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235 |
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236 conf->max_blocked_streams = conf->max_concurrent_streams; |
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237 |
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238 ngx_conf_merge_size_value(conf->quic.stream_buffer_size, |
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239 prev->quic.stream_buffer_size, |
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240 65536); |
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241 |
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242 conf->quic.max_concurrent_streams_bidi = conf->max_concurrent_streams; |
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243 |
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244 ngx_conf_merge_value(conf->quic.retry, prev->quic.retry, 0); |
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245 ngx_conf_merge_value(conf->quic.gso_enabled, prev->quic.gso_enabled, 0); |
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246 |
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247 ngx_conf_merge_str_value(conf->quic.host_key, prev->quic.host_key, ""); |
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248 |
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249 ngx_conf_merge_uint_value(conf->quic.active_connection_id_limit, |
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250 prev->quic.active_connection_id_limit, |
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251 2); |
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252 |
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253 if (conf->quic.host_key.len == 0) { |
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254 |
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255 conf->quic.host_key.len = NGX_QUIC_DEFAULT_HOST_KEY_LEN; |
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256 conf->quic.host_key.data = ngx_palloc(cf->pool, |
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257 conf->quic.host_key.len); |
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258 if (conf->quic.host_key.data == NULL) { |
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259 return NGX_CONF_ERROR; |
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260 } |
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261 |
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262 if (RAND_bytes(conf->quic.host_key.data, NGX_QUIC_DEFAULT_HOST_KEY_LEN) |
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263 <= 0) |
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264 { |
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265 return NGX_CONF_ERROR; |
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266 } |
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267 } |
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268 |
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269 if (ngx_quic_derive_key(cf->log, "av_token_key", |
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270 &conf->quic.host_key, &ngx_http_quic_salt, |
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271 conf->quic.av_token_key, NGX_QUIC_AV_KEY_LEN) |
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272 != NGX_OK) |
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273 { |
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274 return NGX_CONF_ERROR; |
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275 } |
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276 |
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277 if (ngx_quic_derive_key(cf->log, "sr_token_key", |
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278 &conf->quic.host_key, &ngx_http_quic_salt, |
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279 conf->quic.sr_token_key, NGX_QUIC_SR_KEY_LEN) |
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280 != NGX_OK) |
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281 { |
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282 return NGX_CONF_ERROR; |
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283 } |
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284 |
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285 cscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_core_module); |
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286 conf->quic.handshake_timeout = cscf->client_header_timeout; |
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287 |
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288 sscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_ssl_module); |
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289 conf->quic.ssl = &sscf->ssl; |
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290 |
8497 | 291 return NGX_CONF_OK; |
292 } | |
293 | |
294 | |
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295 static char * |
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296 ngx_http_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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297 { |
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298 ngx_http_v3_srv_conf_t *h3scf = conf; |
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299 |
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300 u_char *buf; |
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301 size_t size; |
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302 ssize_t n; |
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303 ngx_str_t *value; |
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304 ngx_file_t file; |
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305 ngx_file_info_t fi; |
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306 ngx_quic_conf_t *qcf; |
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307 |
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308 qcf = &h3scf->quic; |
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309 |
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310 if (qcf->host_key.len) { |
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311 return "is duplicate"; |
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312 } |
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313 |
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314 buf = NULL; |
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315 #if (NGX_SUPPRESS_WARN) |
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316 size = 0; |
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317 #endif |
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318 |
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319 value = cf->args->elts; |
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320 |
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321 if (ngx_conf_full_name(cf->cycle, &value[1], 1) != NGX_OK) { |
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322 return NGX_CONF_ERROR; |
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323 } |
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324 |
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325 ngx_memzero(&file, sizeof(ngx_file_t)); |
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326 file.name = value[1]; |
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327 file.log = cf->log; |
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328 |
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329 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); |
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330 |
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331 if (file.fd == NGX_INVALID_FILE) { |
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332 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
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333 ngx_open_file_n " \"%V\" failed", &file.name); |
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334 return NGX_CONF_ERROR; |
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335 } |
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336 |
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337 if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) { |
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338 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno, |
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339 ngx_fd_info_n " \"%V\" failed", &file.name); |
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340 goto failed; |
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341 } |
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342 |
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343 size = ngx_file_size(&fi); |
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344 |
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345 if (size == 0) { |
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346 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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347 "\"%V\" zero key size", &file.name); |
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348 goto failed; |
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349 } |
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350 |
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351 buf = ngx_pnalloc(cf->pool, size); |
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352 if (buf == NULL) { |
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353 goto failed; |
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354 } |
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355 |
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356 n = ngx_read_file(&file, buf, size, 0); |
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357 |
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358 if (n == NGX_ERROR) { |
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359 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno, |
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360 ngx_read_file_n " \"%V\" failed", &file.name); |
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361 goto failed; |
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362 } |
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363 |
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364 if ((size_t) n != size) { |
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365 ngx_conf_log_error(NGX_LOG_CRIT, cf, 0, |
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366 ngx_read_file_n " \"%V\" returned only " |
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367 "%z bytes instead of %uz", &file.name, n, size); |
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368 goto failed; |
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369 } |
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370 |
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371 qcf->host_key.data = buf; |
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372 qcf->host_key.len = n; |
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373 |
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374 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) { |
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375 ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno, |
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376 ngx_close_file_n " \"%V\" failed", &file.name); |
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377 } |
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378 |
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379 return NGX_CONF_OK; |
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380 |
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381 failed: |
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382 |
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383 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) { |
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384 ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno, |
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385 ngx_close_file_n " \"%V\" failed", &file.name); |
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386 } |
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387 |
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388 if (buf) { |
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389 ngx_explicit_memzero(buf, size); |
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390 } |
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391 |
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392 return NGX_CONF_ERROR; |
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393 } |