Mercurial > hg > nginx
annotate src/http/modules/ngx_http_ssl_module.c @ 611:3f8a2132b93d release-0.3.27
nginx-0.3.27-RELEASE import
*) Change: the "variables_hash_max_size" and
"variables_hash_bucket_size" directives.
*) Feature: the $body_bytes_sent variable can be used not only in the
"log_format" directive.
*) Feature: the $ssl_protocol and $ssl_cipher variables.
*) Feature: the cache line size detection for widespread CPUs at start
time.
*) Feature: now the "accept_mutex" directive is supported using
fcntl(2) on platforms different from i386, amd64, sparc64, and ppc.
*) Feature: the "lock_file" directive and the --with-lock-path=PATH
autoconfiguration directive.
*) Bugfix: if the HTTPS protocol was used in the "proxy_pass" directive
then the requests with the body was not transferred.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 08 Feb 2006 15:33:12 +0000 |
| parents | 869b6444d234 |
| children | e60fe4cf1d4e |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
| 573 | 11 |
| 611 | 12 typedef u_char *(*ngx_ssl_variable_handler_pt)(ngx_connection_t *); |
| 13 | |
| 14 | |
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15 #define NGX_DEFLAUT_CERTIFICATE "cert.pem" |
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16 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem" |
| 547 | 17 #define NGX_DEFLAUT_CIPHERS "ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP" |
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18 |
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19 |
| 611 | 20 static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r, |
| 21 ngx_http_variable_value_t *v, uintptr_t data); | |
| 22 | |
| 23 static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf); | |
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24 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); |
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25 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, |
| 501 | 26 void *parent, void *child); |
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27 |
| 563 | 28 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) |
| 29 | |
| 30 static char *ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 31 void *conf); | |
| 32 | |
| 33 static char ngx_http_ssl_openssl097[] = "OpenSSL 0.9.7 and higher"; | |
| 34 | |
| 35 #endif | |
| 36 | |
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37 |
| 547 | 38 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = { |
| 39 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 40 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 41 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 42 { ngx_null_string, 0 } | |
| 43 }; | |
| 44 | |
| 45 | |
| 563 | 46 |
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47 static ngx_command_t ngx_http_ssl_commands[] = { |
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48 |
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49 { ngx_string("ssl"), |
| 599 | 50 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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51 ngx_conf_set_flag_slot, |
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52 NGX_HTTP_SRV_CONF_OFFSET, |
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53 offsetof(ngx_http_ssl_srv_conf_t, enable), |
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54 NULL }, |
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55 |
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56 { ngx_string("ssl_certificate"), |
| 599 | 57 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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58 ngx_conf_set_str_slot, |
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59 NGX_HTTP_SRV_CONF_OFFSET, |
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60 offsetof(ngx_http_ssl_srv_conf_t, certificate), |
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61 NULL }, |
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62 |
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63 { ngx_string("ssl_certificate_key"), |
| 599 | 64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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65 ngx_conf_set_str_slot, |
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66 NGX_HTTP_SRV_CONF_OFFSET, |
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67 offsetof(ngx_http_ssl_srv_conf_t, certificate_key), |
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68 NULL }, |
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69 |
| 547 | 70 { ngx_string("ssl_protocols"), |
| 563 | 71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, |
| 547 | 72 ngx_conf_set_bitmask_slot, |
| 73 NGX_HTTP_SRV_CONF_OFFSET, | |
| 74 offsetof(ngx_http_ssl_srv_conf_t, protocols), | |
| 75 &ngx_http_ssl_protocols }, | |
| 76 | |
| 479 | 77 { ngx_string("ssl_ciphers"), |
| 563 | 78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
| 479 | 79 ngx_conf_set_str_slot, |
| 80 NGX_HTTP_SRV_CONF_OFFSET, | |
| 81 offsetof(ngx_http_ssl_srv_conf_t, ciphers), | |
| 82 NULL }, | |
| 83 | |
| 547 | 84 { ngx_string("ssl_prefer_server_ciphers"), |
| 85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, | |
| 563 | 86 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 547 | 87 ngx_conf_set_flag_slot, |
| 88 NGX_HTTP_SRV_CONF_OFFSET, | |
| 89 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), | |
| 90 NULL }, | |
| 563 | 91 #else |
| 92 ngx_http_ssl_nosupported, 0, 0, ngx_http_ssl_openssl097 }, | |
| 93 #endif | |
| 547 | 94 |
| 573 | 95 { ngx_string("ssl_session_timeout"), |
| 96 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
| 97 ngx_conf_set_sec_slot, | |
| 98 NGX_HTTP_SRV_CONF_OFFSET, | |
| 99 offsetof(ngx_http_ssl_srv_conf_t, session_timeout), | |
| 100 NULL }, | |
| 101 | |
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102 ngx_null_command |
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103 }; |
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104 |
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105 |
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106 static ngx_http_module_t ngx_http_ssl_module_ctx = { |
| 611 | 107 ngx_http_ssl_add_variables, /* preconfiguration */ |
| 509 | 108 NULL, /* postconfiguration */ |
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109 |
| 541 | 110 NULL, /* create main configuration */ |
| 111 NULL, /* init main configuration */ | |
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112 |
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113 ngx_http_ssl_create_srv_conf, /* create server configuration */ |
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114 ngx_http_ssl_merge_srv_conf, /* merge server configuration */ |
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115 |
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116 NULL, /* create location configuration */ |
| 485 | 117 NULL /* merge location configuration */ |
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118 }; |
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119 |
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120 |
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121 ngx_module_t ngx_http_ssl_module = { |
| 509 | 122 NGX_MODULE_V1, |
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123 &ngx_http_ssl_module_ctx, /* module context */ |
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124 ngx_http_ssl_commands, /* module directives */ |
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125 NGX_HTTP_MODULE, /* module type */ |
| 541 | 126 NULL, /* init master */ |
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127 NULL, /* init module */ |
| 541 | 128 NULL, /* init process */ |
| 129 NULL, /* init thread */ | |
| 130 NULL, /* exit thread */ | |
| 131 NULL, /* exit process */ | |
| 132 NULL, /* exit master */ | |
| 133 NGX_MODULE_V1_PADDING | |
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134 }; |
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135 |
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136 |
| 611 | 137 static ngx_http_variable_t ngx_http_ssl_vars[] = { |
| 138 | |
| 139 { ngx_string("ssl_protocol"), ngx_http_ssl_variable, | |
| 140 (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGABLE, 0 }, | |
| 141 | |
| 142 { ngx_string("ssl_cipher"), ngx_http_ssl_variable, | |
| 143 (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGABLE, 0 }, | |
| 144 | |
| 145 { ngx_null_string, NULL, 0, 0, 0 } | |
| 146 }; | |
| 147 | |
| 148 | |
| 543 | 149 static u_char ngx_http_session_id_ctx[] = "HTTP"; |
| 150 | |
| 151 | |
| 611 | 152 static ngx_int_t |
| 153 ngx_http_ssl_variable(ngx_http_request_t *r, | |
| 154 ngx_http_variable_value_t *v, uintptr_t data) | |
| 155 { | |
| 156 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; | |
| 157 | |
| 158 size_t len; | |
| 159 u_char *name; | |
| 160 | |
| 161 if (r->connection->ssl) { | |
| 162 | |
| 163 name = handler(r->connection); | |
| 164 | |
| 165 for (len = 0; name[len]; len++) { /* void */ } | |
| 166 | |
| 167 v->len = len; | |
| 168 v->valid = 1; | |
| 169 v->no_cachable = 0; | |
| 170 v->not_found = 0; | |
| 171 v->data = name; | |
| 172 | |
| 173 return NGX_OK; | |
| 174 } | |
| 175 | |
| 176 v->not_found = 1; | |
| 177 | |
| 178 return NGX_OK; | |
| 179 } | |
| 180 | |
| 181 | |
| 182 static ngx_int_t | |
| 183 ngx_http_ssl_add_variables(ngx_conf_t *cf) | |
| 184 { | |
| 185 ngx_http_variable_t *var, *v; | |
| 186 | |
| 187 for (v = ngx_http_ssl_vars; v->name.len; v++) { | |
| 188 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 189 if (var == NULL) { | |
| 190 return NGX_ERROR; | |
| 191 } | |
| 192 | |
| 193 var->handler = v->handler; | |
| 194 var->data = v->data; | |
| 195 } | |
| 196 | |
| 197 return NGX_OK; | |
| 198 } | |
| 199 | |
| 200 | |
| 501 | 201 static void * |
| 202 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf) | |
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203 { |
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204 ngx_http_ssl_srv_conf_t *scf; |
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205 |
| 501 | 206 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); |
| 207 if (scf == NULL) { | |
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208 return NGX_CONF_ERROR; |
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209 } |
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210 |
| 479 | 211 /* |
| 212 * set by ngx_pcalloc(): | |
| 213 * | |
| 547 | 214 * scf->protocols = 0; |
| 215 | |
| 479 | 216 * scf->certificate.len = 0; |
| 217 * scf->certificate.data = NULL; | |
| 218 * scf->certificate_key.len = 0; | |
| 219 * scf->certificate_key.data = NULL; | |
| 220 * scf->ciphers.len = 0; | |
| 221 * scf->ciphers.data = NULL; | |
| 222 */ | |
| 223 | |
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224 scf->enable = NGX_CONF_UNSET; |
| 573 | 225 scf->session_timeout = NGX_CONF_UNSET; |
| 547 | 226 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
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227 |
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228 return scf; |
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229 } |
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230 |
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231 |
| 501 | 232 static char * |
| 233 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
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234 { |
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235 ngx_http_ssl_srv_conf_t *prev = parent; |
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236 ngx_http_ssl_srv_conf_t *conf = child; |
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237 |
| 563 | 238 ngx_pool_cleanup_t *cln; |
| 239 | |
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240 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
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241 |
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393
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242 if (conf->enable == 0) { |
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243 return NGX_CONF_OK; |
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244 } |
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245 |
| 573 | 246 ngx_conf_merge_value(conf->session_timeout, |
| 247 prev->session_timeout, 300); | |
| 248 | |
| 547 | 249 ngx_conf_merge_value(conf->prefer_server_ciphers, |
| 250 prev->prefer_server_ciphers, 0); | |
| 251 | |
| 252 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
| 253 (NGX_CONF_BITMASK_SET | |
| 254 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); | |
| 255 | |
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256 ngx_conf_merge_str_value(conf->certificate, prev->certificate, |
| 547 | 257 NGX_DEFLAUT_CERTIFICATE); |
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258 |
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259 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, |
| 547 | 260 NGX_DEFLAUT_CERTIFICATE_KEY); |
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261 |
| 547 | 262 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFLAUT_CIPHERS); |
| 479 | 263 |
| 264 | |
| 547 | 265 conf->ssl.log = cf->log; |
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266 |
| 547 | 267 if (ngx_ssl_create(&conf->ssl, conf->protocols) != NGX_OK) { |
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268 return NGX_CONF_ERROR; |
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269 } |
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270 |
| 563 | 271 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 272 if (cln == NULL) { | |
| 509 | 273 return NGX_CONF_ERROR; |
| 274 } | |
| 275 | |
| 563 | 276 cln->handler = ngx_ssl_cleanup_ctx; |
| 277 cln->data = &conf->ssl; | |
| 278 | |
| 279 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
| 280 &conf->certificate_key) != NGX_OK) | |
| 529 | 281 { |
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282 return NGX_CONF_ERROR; |
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283 } |
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284 |
| 547 | 285 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
| 563 | 286 (const char *) conf->ciphers.data) |
| 287 == 0) | |
| 529 | 288 { |
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289 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
| 547 | 290 "SSL_CTX_set_cipher_list(\"%V\") failed", |
| 291 &conf->ciphers); | |
| 292 } | |
| 293 | |
| 563 | 294 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 295 | |
| 547 | 296 if (conf->prefer_server_ciphers) { |
| 297 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
| 298 } | |
| 299 | |
| 563 | 300 #endif |
| 301 | |
| 547 | 302 /* a temporary 512-bit RSA key is required for export versions of MSIE */ |
| 303 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) { | |
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304 return NGX_CONF_ERROR; |
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305 } |
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306 |
| 547 | 307 SSL_CTX_set_session_cache_mode(conf->ssl.ctx, SSL_SESS_CACHE_SERVER); |
| 543 | 308 |
| 547 | 309 SSL_CTX_set_session_id_context(conf->ssl.ctx, ngx_http_session_id_ctx, |
| 543 | 310 sizeof(ngx_http_session_id_ctx) - 1); |
| 541 | 311 |
| 573 | 312 SSL_CTX_set_timeout(conf->ssl.ctx, conf->session_timeout); |
| 313 | |
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314 return NGX_CONF_OK; |
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315 } |
| 563 | 316 |
| 317 | |
| 318 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) | |
| 319 | |
| 320 static char * | |
| 321 ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 322 { | |
| 323 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 324 "\"%V\" directive is available only in %s,", | |
| 325 &cmd->name, cmd->post); | |
| 326 | |
| 327 return NGX_CONF_ERROR; | |
| 328 } | |
| 329 | |
| 330 #endif |