Mercurial > hg > nginx
annotate src/http/modules/ngx_http_ssl_module.c @ 667:63a820b0bc6c release-0.3.55
nginx-0.3.55-RELEASE import
*) Feature: the "stub" parameter in the "include" SSI command.
*) Feature: the "block" SSI command.
*) Feature: the unicode2nginx script was added to contrib.
*) Bugfix: if a "root" was specified by variable only, then the root
was relative to a server prefix.
*) Bugfix: if the request contained "//" or "/./" and escaped symbols
after them, then the proxied request was sent unescaped.
*) Bugfix: the $r->headers_in("Cookie") of the ngx_http_perl_module now
returns all "Cookie" header lines.
*) Bugfix: a segmentation fault occurred if
"client_body_in_file_only on" was used and nginx switched to a next
upstream.
*) Bugfix: on some condition while reconfiguration character codes
inside the "charset_map" may be treated invalid; the bug had
appeared in 0.3.50.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 28 Jul 2006 15:16:17 +0000 |
| parents | 95d7da23ea53 |
| children | 562806624c4a |
| 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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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); | |
| 647 | 22 static ngx_int_t ngx_http_ssl_client_s_dn(ngx_http_request_t *r, |
| 23 ngx_http_variable_value_t *v, uintptr_t data); | |
| 24 static ngx_int_t ngx_http_ssl_client_i_dn(ngx_http_request_t *r, | |
| 25 ngx_http_variable_value_t *v, uintptr_t data); | |
| 611 | 26 |
| 27 static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf); | |
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28 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); |
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29 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, |
| 501 | 30 void *parent, void *child); |
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31 |
| 563 | 32 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) |
| 33 | |
| 34 static char *ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 35 void *conf); | |
| 36 | |
| 37 static char ngx_http_ssl_openssl097[] = "OpenSSL 0.9.7 and higher"; | |
| 38 | |
| 39 #endif | |
| 40 | |
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41 |
| 547 | 42 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = { |
| 43 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 44 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 45 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 46 { ngx_null_string, 0 } | |
| 47 }; | |
| 48 | |
| 49 | |
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50 static ngx_command_t ngx_http_ssl_commands[] = { |
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51 |
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52 { ngx_string("ssl"), |
| 599 | 53 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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54 ngx_conf_set_flag_slot, |
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55 NGX_HTTP_SRV_CONF_OFFSET, |
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56 offsetof(ngx_http_ssl_srv_conf_t, enable), |
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57 NULL }, |
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58 |
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59 { ngx_string("ssl_certificate"), |
| 599 | 60 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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61 ngx_conf_set_str_slot, |
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62 NGX_HTTP_SRV_CONF_OFFSET, |
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63 offsetof(ngx_http_ssl_srv_conf_t, certificate), |
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64 NULL }, |
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65 |
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66 { ngx_string("ssl_certificate_key"), |
| 599 | 67 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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68 ngx_conf_set_str_slot, |
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69 NGX_HTTP_SRV_CONF_OFFSET, |
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70 offsetof(ngx_http_ssl_srv_conf_t, certificate_key), |
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71 NULL }, |
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72 |
| 547 | 73 { ngx_string("ssl_protocols"), |
| 563 | 74 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, |
| 547 | 75 ngx_conf_set_bitmask_slot, |
| 76 NGX_HTTP_SRV_CONF_OFFSET, | |
| 77 offsetof(ngx_http_ssl_srv_conf_t, protocols), | |
| 78 &ngx_http_ssl_protocols }, | |
| 79 | |
| 479 | 80 { ngx_string("ssl_ciphers"), |
| 563 | 81 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
| 479 | 82 ngx_conf_set_str_slot, |
| 83 NGX_HTTP_SRV_CONF_OFFSET, | |
| 84 offsetof(ngx_http_ssl_srv_conf_t, ciphers), | |
| 85 NULL }, | |
| 86 | |
| 647 | 87 { ngx_string("ssl_verify_client"), |
| 667 | 88 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
| 647 | 89 ngx_conf_set_flag_slot, |
| 90 NGX_HTTP_SRV_CONF_OFFSET, | |
| 91 offsetof(ngx_http_ssl_srv_conf_t, verify), | |
| 92 NULL }, | |
| 93 | |
| 94 { ngx_string("ssl_verify_depth"), | |
| 95 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, | |
| 96 ngx_conf_set_num_slot, | |
| 97 NGX_HTTP_SRV_CONF_OFFSET, | |
| 98 offsetof(ngx_http_ssl_srv_conf_t, verify_depth), | |
| 99 NULL }, | |
| 100 | |
| 101 { ngx_string("ssl_client_certificate"), | |
| 102 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
| 103 ngx_conf_set_str_slot, | |
| 104 NGX_HTTP_SRV_CONF_OFFSET, | |
| 105 offsetof(ngx_http_ssl_srv_conf_t, client_certificate), | |
| 106 NULL }, | |
| 107 | |
| 547 | 108 { ngx_string("ssl_prefer_server_ciphers"), |
| 109 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, | |
| 563 | 110 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 547 | 111 ngx_conf_set_flag_slot, |
| 112 NGX_HTTP_SRV_CONF_OFFSET, | |
| 113 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), | |
| 114 NULL }, | |
| 563 | 115 #else |
| 116 ngx_http_ssl_nosupported, 0, 0, ngx_http_ssl_openssl097 }, | |
| 117 #endif | |
| 547 | 118 |
| 573 | 119 { ngx_string("ssl_session_timeout"), |
| 120 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
| 121 ngx_conf_set_sec_slot, | |
| 122 NGX_HTTP_SRV_CONF_OFFSET, | |
| 123 offsetof(ngx_http_ssl_srv_conf_t, session_timeout), | |
| 124 NULL }, | |
| 125 | |
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126 ngx_null_command |
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127 }; |
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128 |
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129 |
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130 static ngx_http_module_t ngx_http_ssl_module_ctx = { |
| 611 | 131 ngx_http_ssl_add_variables, /* preconfiguration */ |
| 509 | 132 NULL, /* postconfiguration */ |
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133 |
| 541 | 134 NULL, /* create main configuration */ |
| 135 NULL, /* init main configuration */ | |
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136 |
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137 ngx_http_ssl_create_srv_conf, /* create server configuration */ |
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138 ngx_http_ssl_merge_srv_conf, /* merge server configuration */ |
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139 |
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140 NULL, /* create location configuration */ |
| 485 | 141 NULL /* merge location configuration */ |
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142 }; |
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143 |
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144 |
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145 ngx_module_t ngx_http_ssl_module = { |
| 509 | 146 NGX_MODULE_V1, |
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147 &ngx_http_ssl_module_ctx, /* module context */ |
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148 ngx_http_ssl_commands, /* module directives */ |
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149 NGX_HTTP_MODULE, /* module type */ |
| 541 | 150 NULL, /* init master */ |
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151 NULL, /* init module */ |
| 541 | 152 NULL, /* init process */ |
| 153 NULL, /* init thread */ | |
| 154 NULL, /* exit thread */ | |
| 155 NULL, /* exit process */ | |
| 156 NULL, /* exit master */ | |
| 157 NGX_MODULE_V1_PADDING | |
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158 }; |
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159 |
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160 |
| 611 | 161 static ngx_http_variable_t ngx_http_ssl_vars[] = { |
| 162 | |
| 637 | 163 { ngx_string("ssl_protocol"), NULL, ngx_http_ssl_variable, |
| 611 | 164 (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGABLE, 0 }, |
| 165 | |
| 637 | 166 { ngx_string("ssl_cipher"), NULL, ngx_http_ssl_variable, |
| 611 | 167 (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGABLE, 0 }, |
| 168 | |
| 647 | 169 { ngx_string("ssl_client_s_dn"), NULL, ngx_http_ssl_client_s_dn, |
| 170 0, NGX_HTTP_VAR_CHANGABLE, 0 }, | |
| 171 | |
| 172 { ngx_string("ssl_client_i_dn"), NULL, ngx_http_ssl_client_i_dn, | |
| 173 0, NGX_HTTP_VAR_CHANGABLE, 0 }, | |
| 174 | |
| 637 | 175 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 611 | 176 }; |
| 177 | |
| 178 | |
| 543 | 179 static u_char ngx_http_session_id_ctx[] = "HTTP"; |
| 180 | |
| 181 | |
| 611 | 182 static ngx_int_t |
| 183 ngx_http_ssl_variable(ngx_http_request_t *r, | |
| 184 ngx_http_variable_value_t *v, uintptr_t data) | |
| 185 { | |
| 186 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; | |
| 187 | |
| 188 size_t len; | |
| 189 u_char *name; | |
| 190 | |
| 191 if (r->connection->ssl) { | |
| 192 | |
| 193 name = handler(r->connection); | |
| 194 | |
| 195 for (len = 0; name[len]; len++) { /* void */ } | |
| 196 | |
| 197 v->len = len; | |
| 198 v->valid = 1; | |
| 199 v->no_cachable = 0; | |
| 200 v->not_found = 0; | |
| 201 v->data = name; | |
| 202 | |
| 203 return NGX_OK; | |
| 204 } | |
| 205 | |
| 206 v->not_found = 1; | |
| 207 | |
| 208 return NGX_OK; | |
| 209 } | |
| 210 | |
| 211 | |
| 212 static ngx_int_t | |
| 647 | 213 ngx_http_ssl_client_s_dn(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
| 214 uintptr_t data) | |
| 215 { | |
| 216 if (r->connection->ssl) { | |
| 217 if (ngx_ssl_get_subject_dn(r->connection, r->pool, (ngx_str_t *) v) | |
| 218 != NGX_OK) | |
| 219 { | |
| 220 return NGX_ERROR; | |
| 221 } | |
| 222 | |
| 223 if (v->len) { | |
| 224 v->valid = 1; | |
| 225 v->no_cachable = 0; | |
| 226 v->not_found = 0; | |
| 227 | |
| 228 return NGX_OK; | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 v->not_found = 1; | |
| 233 | |
| 234 return NGX_OK; | |
| 235 } | |
| 236 | |
| 237 | |
| 238 static ngx_int_t | |
| 239 ngx_http_ssl_client_i_dn(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 240 uintptr_t data) | |
| 241 { | |
| 242 if (r->connection->ssl) { | |
| 243 if (ngx_ssl_get_issuer_dn(r->connection, r->pool, (ngx_str_t *) v) | |
| 244 != NGX_OK) | |
| 245 { | |
| 246 return NGX_ERROR; | |
| 247 } | |
| 248 | |
| 249 if (v->len) { | |
| 250 v->valid = 1; | |
| 251 v->no_cachable = 0; | |
| 252 v->not_found = 0; | |
| 253 | |
| 254 return NGX_OK; | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 v->not_found = 1; | |
| 259 | |
| 260 return NGX_OK; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 static ngx_int_t | |
| 611 | 265 ngx_http_ssl_add_variables(ngx_conf_t *cf) |
| 266 { | |
| 267 ngx_http_variable_t *var, *v; | |
| 268 | |
| 269 for (v = ngx_http_ssl_vars; v->name.len; v++) { | |
| 270 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 271 if (var == NULL) { | |
| 272 return NGX_ERROR; | |
| 273 } | |
| 274 | |
| 637 | 275 var->get_handler = v->get_handler; |
| 611 | 276 var->data = v->data; |
| 277 } | |
| 278 | |
| 279 return NGX_OK; | |
| 280 } | |
| 281 | |
| 282 | |
| 501 | 283 static void * |
| 284 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf) | |
|
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285 { |
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286 ngx_http_ssl_srv_conf_t *scf; |
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287 |
| 501 | 288 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); |
| 289 if (scf == NULL) { | |
|
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290 return NGX_CONF_ERROR; |
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291 } |
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292 |
| 479 | 293 /* |
| 294 * set by ngx_pcalloc(): | |
| 295 * | |
| 547 | 296 * scf->protocols = 0; |
| 297 | |
| 479 | 298 * scf->certificate.len = 0; |
| 299 * scf->certificate.data = NULL; | |
| 300 * scf->certificate_key.len = 0; | |
| 301 * scf->certificate_key.data = NULL; | |
| 647 | 302 * scf->client_certificate.len = 0; |
| 303 * scf->client_certificate.data = NULL; | |
| 479 | 304 * scf->ciphers.len = 0; |
| 305 * scf->ciphers.data = NULL; | |
| 306 */ | |
| 307 | |
|
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308 scf->enable = NGX_CONF_UNSET; |
| 573 | 309 scf->session_timeout = NGX_CONF_UNSET; |
| 647 | 310 scf->verify = NGX_CONF_UNSET; |
| 311 scf->verify_depth = NGX_CONF_UNSET; | |
| 547 | 312 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
|
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313 |
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314 return scf; |
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315 } |
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316 |
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317 |
| 501 | 318 static char * |
| 319 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
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320 { |
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321 ngx_http_ssl_srv_conf_t *prev = parent; |
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322 ngx_http_ssl_srv_conf_t *conf = child; |
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323 |
| 563 | 324 ngx_pool_cleanup_t *cln; |
| 325 | |
|
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326 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
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327 |
|
393
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328 if (conf->enable == 0) { |
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329 return NGX_CONF_OK; |
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330 } |
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331 |
| 573 | 332 ngx_conf_merge_value(conf->session_timeout, |
| 333 prev->session_timeout, 300); | |
| 334 | |
| 547 | 335 ngx_conf_merge_value(conf->prefer_server_ciphers, |
| 336 prev->prefer_server_ciphers, 0); | |
| 337 | |
| 338 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
| 339 (NGX_CONF_BITMASK_SET | |
| 340 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); | |
| 341 | |
| 647 | 342 ngx_conf_merge_value(conf->verify, prev->verify, 0); |
| 343 ngx_conf_merge_value(conf->verify_depth, prev->verify_depth, 1); | |
| 344 | |
|
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345 ngx_conf_merge_str_value(conf->certificate, prev->certificate, |
| 547 | 346 NGX_DEFLAUT_CERTIFICATE); |
|
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347 |
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348 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, |
| 547 | 349 NGX_DEFLAUT_CERTIFICATE_KEY); |
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350 |
| 647 | 351 ngx_conf_merge_str_value(conf->client_certificate, prev->client_certificate, |
| 352 ""); | |
| 353 | |
| 547 | 354 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFLAUT_CIPHERS); |
| 479 | 355 |
| 356 | |
| 547 | 357 conf->ssl.log = cf->log; |
|
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358 |
| 547 | 359 if (ngx_ssl_create(&conf->ssl, conf->protocols) != NGX_OK) { |
|
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360 return NGX_CONF_ERROR; |
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361 } |
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362 |
| 563 | 363 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 364 if (cln == NULL) { | |
| 509 | 365 return NGX_CONF_ERROR; |
| 366 } | |
| 367 | |
| 563 | 368 cln->handler = ngx_ssl_cleanup_ctx; |
| 369 cln->data = &conf->ssl; | |
| 370 | |
| 371 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
| 372 &conf->certificate_key) != NGX_OK) | |
| 529 | 373 { |
|
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374 return NGX_CONF_ERROR; |
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375 } |
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376 |
| 547 | 377 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
| 563 | 378 (const char *) conf->ciphers.data) |
| 379 == 0) | |
| 529 | 380 { |
|
395
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381 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
| 547 | 382 "SSL_CTX_set_cipher_list(\"%V\") failed", |
| 383 &conf->ciphers); | |
| 384 } | |
| 385 | |
| 647 | 386 if (conf->verify) { |
| 387 SSL_CTX_set_verify(conf->ssl.ctx, NGX_SSL_VERIFY, NULL); | |
| 388 | |
| 389 SSL_CTX_set_verify_depth(conf->ssl.ctx, conf->verify_depth); | |
| 390 | |
| 391 if (conf->client_certificate.len) { | |
| 392 if (ngx_ssl_client_certificate(cf, &conf->ssl, | |
| 393 &conf->client_certificate) | |
| 394 != NGX_OK) | |
| 395 { | |
| 396 return NGX_CONF_ERROR; | |
| 397 } | |
| 398 } | |
| 399 } | |
| 400 | |
| 563 | 401 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 402 | |
| 547 | 403 if (conf->prefer_server_ciphers) { |
| 404 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
| 405 } | |
| 406 | |
| 563 | 407 #endif |
| 408 | |
| 547 | 409 /* a temporary 512-bit RSA key is required for export versions of MSIE */ |
| 410 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) { | |
|
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411 return NGX_CONF_ERROR; |
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412 } |
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413 |
| 547 | 414 SSL_CTX_set_session_cache_mode(conf->ssl.ctx, SSL_SESS_CACHE_SERVER); |
| 543 | 415 |
| 547 | 416 SSL_CTX_set_session_id_context(conf->ssl.ctx, ngx_http_session_id_ctx, |
| 543 | 417 sizeof(ngx_http_session_id_ctx) - 1); |
| 541 | 418 |
| 573 | 419 SSL_CTX_set_timeout(conf->ssl.ctx, conf->session_timeout); |
| 420 | |
|
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421 return NGX_CONF_OK; |
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422 } |
| 563 | 423 |
| 424 | |
| 425 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) | |
| 426 | |
| 427 static char * | |
| 428 ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 429 { | |
| 430 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 431 "\"%V\" directive is available only in %s,", | |
| 432 &cmd->name, cmd->post); | |
| 433 | |
| 434 return NGX_CONF_ERROR; | |
| 435 } | |
| 436 | |
| 437 #endif |