Mercurial > hg > nginx
annotate src/http/modules/ngx_http_ssl_module.c @ 3140:ba9a8ba4207e
*) issue warning instead of failure: this is too common case
*) use ngx_log_error(), since OpenSSL does not set an error on the failure
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 18 Sep 2009 09:10:16 +0000 |
parents | d6285ff81d35 |
children | 823f72db46c0 |
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 |
671 | 12 typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c, |
13 ngx_pool_t *pool, ngx_str_t *s); | |
611 | 14 |
15 | |
2124 | 16 #define NGX_DEFAULT_CIPHERS "ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP" |
383
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17 |
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18 |
671 | 19 static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, |
611 | 20 ngx_http_variable_value_t *v, uintptr_t data); |
671 | 21 static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r, |
647 | 22 ngx_http_variable_value_t *v, uintptr_t data); |
611 | 23 |
24 static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf); | |
383
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25 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); |
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26 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, |
501 | 27 void *parent, void *child); |
383
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28 |
2224 | 29 static char *ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, |
30 void *conf); | |
973 | 31 static char *ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
32 void *conf); | |
33 | |
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34 |
547 | 35 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = { |
36 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
37 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
38 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
39 { ngx_null_string, 0 } | |
40 }; | |
41 | |
42 | |
2123 | 43 static ngx_conf_enum_t ngx_http_ssl_verify[] = { |
44 { ngx_string("off"), 0 }, | |
45 { ngx_string("on"), 1 }, | |
2994 | 46 { ngx_string("optional"), 2 }, |
2123 | 47 { ngx_null_string, 0 } |
48 }; | |
49 | |
50 | |
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51 static ngx_command_t ngx_http_ssl_commands[] = { |
383
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52 |
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53 { ngx_string("ssl"), |
599 | 54 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
2224 | 55 ngx_http_ssl_enable, |
383
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56 NGX_HTTP_SRV_CONF_OFFSET, |
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57 offsetof(ngx_http_ssl_srv_conf_t, enable), |
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58 NULL }, |
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59 |
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60 { ngx_string("ssl_certificate"), |
599 | 61 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
383
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62 ngx_conf_set_str_slot, |
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63 NGX_HTTP_SRV_CONF_OFFSET, |
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64 offsetof(ngx_http_ssl_srv_conf_t, certificate), |
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65 NULL }, |
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66 |
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67 { ngx_string("ssl_certificate_key"), |
599 | 68 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
383
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69 ngx_conf_set_str_slot, |
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70 NGX_HTTP_SRV_CONF_OFFSET, |
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71 offsetof(ngx_http_ssl_srv_conf_t, certificate_key), |
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72 NULL }, |
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73 |
2044 | 74 { ngx_string("ssl_dhparam"), |
75 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
76 ngx_conf_set_str_slot, | |
77 NGX_HTTP_SRV_CONF_OFFSET, | |
78 offsetof(ngx_http_ssl_srv_conf_t, dhparam), | |
79 NULL }, | |
80 | |
547 | 81 { ngx_string("ssl_protocols"), |
563 | 82 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, |
547 | 83 ngx_conf_set_bitmask_slot, |
84 NGX_HTTP_SRV_CONF_OFFSET, | |
85 offsetof(ngx_http_ssl_srv_conf_t, protocols), | |
86 &ngx_http_ssl_protocols }, | |
87 | |
479 | 88 { ngx_string("ssl_ciphers"), |
563 | 89 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
479 | 90 ngx_conf_set_str_slot, |
91 NGX_HTTP_SRV_CONF_OFFSET, | |
92 offsetof(ngx_http_ssl_srv_conf_t, ciphers), | |
93 NULL }, | |
94 | |
647 | 95 { ngx_string("ssl_verify_client"), |
667 | 96 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
2123 | 97 ngx_conf_set_enum_slot, |
647 | 98 NGX_HTTP_SRV_CONF_OFFSET, |
99 offsetof(ngx_http_ssl_srv_conf_t, verify), | |
2123 | 100 &ngx_http_ssl_verify }, |
647 | 101 |
102 { ngx_string("ssl_verify_depth"), | |
103 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, | |
104 ngx_conf_set_num_slot, | |
105 NGX_HTTP_SRV_CONF_OFFSET, | |
106 offsetof(ngx_http_ssl_srv_conf_t, verify_depth), | |
107 NULL }, | |
108 | |
109 { ngx_string("ssl_client_certificate"), | |
110 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
111 ngx_conf_set_str_slot, | |
112 NGX_HTTP_SRV_CONF_OFFSET, | |
113 offsetof(ngx_http_ssl_srv_conf_t, client_certificate), | |
114 NULL }, | |
115 | |
547 | 116 { ngx_string("ssl_prefer_server_ciphers"), |
117 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, | |
118 ngx_conf_set_flag_slot, | |
119 NGX_HTTP_SRV_CONF_OFFSET, | |
120 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), | |
121 NULL }, | |
122 | |
973 | 123 { ngx_string("ssl_session_cache"), |
124 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE12, | |
125 ngx_http_ssl_session_cache, | |
126 NGX_HTTP_SRV_CONF_OFFSET, | |
127 0, | |
128 NULL }, | |
129 | |
573 | 130 { ngx_string("ssl_session_timeout"), |
131 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
132 ngx_conf_set_sec_slot, | |
133 NGX_HTTP_SRV_CONF_OFFSET, | |
134 offsetof(ngx_http_ssl_srv_conf_t, session_timeout), | |
135 NULL }, | |
136 | |
2995 | 137 { ngx_string("ssl_crl"), |
138 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
139 ngx_conf_set_str_slot, | |
140 NGX_HTTP_SRV_CONF_OFFSET, | |
141 offsetof(ngx_http_ssl_srv_conf_t, crl), | |
142 NULL }, | |
143 | |
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144 ngx_null_command |
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145 }; |
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146 |
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147 |
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148 static ngx_http_module_t ngx_http_ssl_module_ctx = { |
611 | 149 ngx_http_ssl_add_variables, /* preconfiguration */ |
509 | 150 NULL, /* postconfiguration */ |
383
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151 |
541 | 152 NULL, /* create main configuration */ |
153 NULL, /* init main configuration */ | |
383
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154 |
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155 ngx_http_ssl_create_srv_conf, /* create server configuration */ |
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156 ngx_http_ssl_merge_srv_conf, /* merge server configuration */ |
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157 |
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158 NULL, /* create location configuration */ |
485 | 159 NULL /* merge location configuration */ |
383
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160 }; |
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161 |
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162 |
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163 ngx_module_t ngx_http_ssl_module = { |
509 | 164 NGX_MODULE_V1, |
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165 &ngx_http_ssl_module_ctx, /* module context */ |
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166 ngx_http_ssl_commands, /* module directives */ |
383
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167 NGX_HTTP_MODULE, /* module type */ |
541 | 168 NULL, /* init master */ |
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169 NULL, /* init module */ |
541 | 170 NULL, /* init process */ |
171 NULL, /* init thread */ | |
172 NULL, /* exit thread */ | |
173 NULL, /* exit process */ | |
174 NULL, /* exit master */ | |
175 NGX_MODULE_V1_PADDING | |
383
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176 }; |
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177 |
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178 |
611 | 179 static ngx_http_variable_t ngx_http_ssl_vars[] = { |
180 | |
671 | 181 { ngx_string("ssl_protocol"), NULL, ngx_http_ssl_static_variable, |
1565 | 182 (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
611 | 183 |
671 | 184 { ngx_string("ssl_cipher"), NULL, ngx_http_ssl_static_variable, |
1565 | 185 (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
611 | 186 |
2045 | 187 { ngx_string("ssl_client_cert"), NULL, ngx_http_ssl_variable, |
188 (uintptr_t) ngx_ssl_get_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
189 | |
2123 | 190 { ngx_string("ssl_client_raw_cert"), NULL, ngx_http_ssl_variable, |
191 (uintptr_t) ngx_ssl_get_raw_certificate, | |
192 NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
193 | |
671 | 194 { ngx_string("ssl_client_s_dn"), NULL, ngx_http_ssl_variable, |
1565 | 195 (uintptr_t) ngx_ssl_get_subject_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
647 | 196 |
671 | 197 { ngx_string("ssl_client_i_dn"), NULL, ngx_http_ssl_variable, |
1565 | 198 (uintptr_t) ngx_ssl_get_issuer_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
671 | 199 |
200 { ngx_string("ssl_client_serial"), NULL, ngx_http_ssl_variable, | |
1565 | 201 (uintptr_t) ngx_ssl_get_serial_number, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
647 | 202 |
2994 | 203 { ngx_string("ssl_client_verify"), NULL, ngx_http_ssl_variable, |
204 (uintptr_t) ngx_ssl_get_client_verify, NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
205 | |
637 | 206 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
611 | 207 }; |
208 | |
209 | |
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210 static ngx_str_t ngx_http_ssl_sess_id_ctx = ngx_string("HTTP"); |
973 | 211 |
212 | |
213 static ngx_int_t | |
671 | 214 ngx_http_ssl_static_variable(ngx_http_request_t *r, |
611 | 215 ngx_http_variable_value_t *v, uintptr_t data) |
216 { | |
671 | 217 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
611 | 218 |
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219 size_t len; |
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220 ngx_str_t s; |
611 | 221 |
222 if (r->connection->ssl) { | |
223 | |
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224 (void) handler(r->connection, NULL, &s); |
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225 |
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226 v->data = s.data; |
611 | 227 |
671 | 228 for (len = 0; v->data[len]; len++) { /* void */ } |
611 | 229 |
230 v->len = len; | |
231 v->valid = 1; | |
1565 | 232 v->no_cacheable = 0; |
611 | 233 v->not_found = 0; |
234 | |
235 return NGX_OK; | |
236 } | |
237 | |
238 v->not_found = 1; | |
239 | |
240 return NGX_OK; | |
241 } | |
242 | |
243 | |
244 static ngx_int_t | |
671 | 245 ngx_http_ssl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
647 | 246 uintptr_t data) |
247 { | |
671 | 248 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
647 | 249 |
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250 ngx_str_t s; |
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251 |
647 | 252 if (r->connection->ssl) { |
1310
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253 |
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254 if (handler(r->connection, r->pool, &s) != NGX_OK) { |
647 | 255 return NGX_ERROR; |
256 } | |
257 | |
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258 v->len = s.len; |
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259 v->data = s.data; |
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260 |
647 | 261 if (v->len) { |
262 v->valid = 1; | |
1565 | 263 v->no_cacheable = 0; |
647 | 264 v->not_found = 0; |
265 | |
266 return NGX_OK; | |
267 } | |
268 } | |
269 | |
270 v->not_found = 1; | |
271 | |
272 return NGX_OK; | |
273 } | |
274 | |
275 | |
276 static ngx_int_t | |
611 | 277 ngx_http_ssl_add_variables(ngx_conf_t *cf) |
278 { | |
279 ngx_http_variable_t *var, *v; | |
280 | |
281 for (v = ngx_http_ssl_vars; v->name.len; v++) { | |
282 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
283 if (var == NULL) { | |
284 return NGX_ERROR; | |
285 } | |
286 | |
637 | 287 var->get_handler = v->get_handler; |
611 | 288 var->data = v->data; |
289 } | |
290 | |
291 return NGX_OK; | |
292 } | |
293 | |
294 | |
501 | 295 static void * |
296 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf) | |
383
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297 { |
971 | 298 ngx_http_ssl_srv_conf_t *sscf; |
383
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299 |
971 | 300 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); |
301 if (sscf == NULL) { | |
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302 return NULL; |
383
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303 } |
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304 |
479 | 305 /* |
306 * set by ngx_pcalloc(): | |
307 * | |
971 | 308 * sscf->protocols = 0; |
2044 | 309 * sscf->certificate = { 0, NULL }; |
310 * sscf->certificate_key = { 0, NULL }; | |
311 * sscf->dhparam = { 0, NULL }; | |
312 * sscf->client_certificate = { 0, NULL }; | |
2995 | 313 * sscf->crl = { 0, NULL }; |
971 | 314 * sscf->ciphers.len = 0; |
315 * sscf->ciphers.data = NULL; | |
973 | 316 * sscf->shm_zone = NULL; |
479 | 317 */ |
318 | |
971 | 319 sscf->enable = NGX_CONF_UNSET; |
2123 | 320 sscf->prefer_server_ciphers = NGX_CONF_UNSET; |
2710 | 321 sscf->verify = NGX_CONF_UNSET_UINT; |
322 sscf->verify_depth = NGX_CONF_UNSET_UINT; | |
973 | 323 sscf->builtin_session_cache = NGX_CONF_UNSET; |
324 sscf->session_timeout = NGX_CONF_UNSET; | |
383
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325 |
971 | 326 return sscf; |
383
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327 } |
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328 |
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329 |
501 | 330 static char * |
331 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
383
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332 { |
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333 ngx_http_ssl_srv_conf_t *prev = parent; |
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334 ngx_http_ssl_srv_conf_t *conf = child; |
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335 |
563 | 336 ngx_pool_cleanup_t *cln; |
337 | |
383
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338 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
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339 |
573 | 340 ngx_conf_merge_value(conf->session_timeout, |
341 prev->session_timeout, 300); | |
342 | |
547 | 343 ngx_conf_merge_value(conf->prefer_server_ciphers, |
344 prev->prefer_server_ciphers, 0); | |
345 | |
346 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
347 (NGX_CONF_BITMASK_SET | |
348 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); | |
349 | |
2123 | 350 ngx_conf_merge_uint_value(conf->verify, prev->verify, 0); |
351 ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1); | |
647 | 352 |
2224 | 353 ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); |
354 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
383
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355 |
2044 | 356 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); |
357 | |
647 | 358 ngx_conf_merge_str_value(conf->client_certificate, prev->client_certificate, |
359 ""); | |
2995 | 360 ngx_conf_merge_str_value(conf->crl, prev->crl, ""); |
647 | 361 |
2124 | 362 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); |
479 | 363 |
364 | |
547 | 365 conf->ssl.log = cf->log; |
386
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366 |
2224 | 367 if (conf->enable) { |
368 | |
369 if (conf->certificate.len == 0) { | |
370 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
371 "no \"ssl_certificate\" is defined for " | |
372 "the \"ssl\" directive in %s:%ui", | |
373 conf->file, conf->line); | |
374 return NGX_CONF_ERROR; | |
375 } | |
376 | |
377 if (conf->certificate_key.len == 0) { | |
378 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
379 "no \"ssl_certificate_key\" is defined for " | |
380 "the \"ssl\" directive in %s:%ui", | |
381 conf->file, conf->line); | |
382 return NGX_CONF_ERROR; | |
383 } | |
384 | |
385 } else { | |
386 | |
387 if (conf->certificate.len == 0) { | |
388 return NGX_CONF_OK; | |
389 } | |
390 | |
391 if (conf->certificate_key.len == 0) { | |
392 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
393 "no \"ssl_certificate_key\" is defined " | |
394 "for certificate \"%V\"", &conf->certificate); | |
395 return NGX_CONF_ERROR; | |
396 } | |
397 } | |
398 | |
969 | 399 if (ngx_ssl_create(&conf->ssl, conf->protocols, conf) != NGX_OK) { |
386
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400 return NGX_CONF_ERROR; |
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401 } |
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402 |
1219 | 403 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
404 | |
405 if (SSL_CTX_set_tlsext_servername_callback(conf->ssl.ctx, | |
406 ngx_http_ssl_servername) | |
407 == 0) | |
408 { | |
3140
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409 ngx_log_error(NGX_LOG_WARN, cf->log, 0, |
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410 "nginx was build with SNI support, however, now it is linked " |
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411 "dynamically to an OpenSSL library which has no tlsext support, " |
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412 "therefore SNI is not available"); |
1219 | 413 } |
414 | |
415 #endif | |
416 | |
563 | 417 cln = ngx_pool_cleanup_add(cf->pool, 0); |
418 if (cln == NULL) { | |
509 | 419 return NGX_CONF_ERROR; |
420 } | |
421 | |
563 | 422 cln->handler = ngx_ssl_cleanup_ctx; |
423 cln->data = &conf->ssl; | |
424 | |
425 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
970 | 426 &conf->certificate_key) |
427 != NGX_OK) | |
529 | 428 { |
386
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429 return NGX_CONF_ERROR; |
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430 } |
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431 |
547 | 432 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
563 | 433 (const char *) conf->ciphers.data) |
434 == 0) | |
529 | 435 { |
395
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diff
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436 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
547 | 437 "SSL_CTX_set_cipher_list(\"%V\") failed", |
438 &conf->ciphers); | |
439 } | |
440 | |
647 | 441 if (conf->verify) { |
2123 | 442 |
443 if (conf->client_certificate.len == 0) { | |
444 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
445 "no ssl_client_certificate for ssl_client_verify"); | |
446 return NGX_CONF_ERROR; | |
447 } | |
448 | |
671 | 449 if (ngx_ssl_client_certificate(cf, &conf->ssl, |
970 | 450 &conf->client_certificate, |
451 conf->verify_depth) | |
671 | 452 != NGX_OK) |
453 { | |
454 return NGX_CONF_ERROR; | |
647 | 455 } |
2995 | 456 |
457 if (ngx_ssl_crl(cf, &conf->ssl, &conf->crl) != NGX_OK) { | |
458 return NGX_CONF_ERROR; | |
459 } | |
647 | 460 } |
461 | |
547 | 462 if (conf->prefer_server_ciphers) { |
463 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
464 } | |
465 | |
466 /* a temporary 512-bit RSA key is required for export versions of MSIE */ | |
467 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) { | |
386
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468 return NGX_CONF_ERROR; |
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469 } |
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470 |
2044 | 471 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { |
472 return NGX_CONF_ERROR; | |
473 } | |
474 | |
973 | 475 ngx_conf_merge_value(conf->builtin_session_cache, |
2032 | 476 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); |
973 | 477 |
478 if (conf->shm_zone == NULL) { | |
479 conf->shm_zone = prev->shm_zone; | |
480 } | |
481 | |
974
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482 if (ngx_ssl_session_cache(&conf->ssl, &ngx_http_ssl_sess_id_ctx, |
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483 conf->builtin_session_cache, |
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484 conf->shm_zone, conf->session_timeout) |
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485 != NGX_OK) |
973 | 486 { |
974
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487 return NGX_CONF_ERROR; |
973 | 488 } |
573 | 489 |
383
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490 return NGX_CONF_OK; |
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491 } |
563 | 492 |
493 | |
973 | 494 static char * |
2224 | 495 ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
496 { | |
497 ngx_http_ssl_srv_conf_t *sscf = conf; | |
498 | |
499 char *rv; | |
500 | |
501 rv = ngx_conf_set_flag_slot(cf, cmd, conf); | |
502 | |
503 if (rv != NGX_CONF_OK) { | |
504 return rv; | |
505 } | |
506 | |
507 sscf->file = cf->conf_file->file.name.data; | |
508 sscf->line = cf->conf_file->line; | |
509 | |
510 return NGX_CONF_OK; | |
511 } | |
512 | |
513 | |
514 static char * | |
973 | 515 ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
516 { | |
517 ngx_http_ssl_srv_conf_t *sscf = conf; | |
518 | |
519 size_t len; | |
520 ngx_str_t *value, name, size; | |
521 ngx_int_t n; | |
522 ngx_uint_t i, j; | |
523 | |
524 value = cf->args->elts; | |
525 | |
526 for (i = 1; i < cf->args->nelts; i++) { | |
527 | |
1778 | 528 if (ngx_strcmp(value[i].data, "off") == 0) { |
529 sscf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
530 continue; | |
531 } | |
532 | |
2032 | 533 if (ngx_strcmp(value[i].data, "none") == 0) { |
534 sscf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
535 continue; | |
536 } | |
537 | |
973 | 538 if (ngx_strcmp(value[i].data, "builtin") == 0) { |
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539 sscf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; |
973 | 540 continue; |
541 } | |
542 | |
543 if (value[i].len > sizeof("builtin:") - 1 | |
544 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
545 == 0) | |
546 { | |
547 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
548 value[i].len - (sizeof("builtin:") - 1)); | |
549 | |
550 if (n == NGX_ERROR) { | |
551 goto invalid; | |
552 } | |
553 | |
554 sscf->builtin_session_cache = n; | |
555 | |
556 continue; | |
557 } | |
558 | |
559 if (value[i].len > sizeof("shared:") - 1 | |
560 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
561 == 0) | |
562 { | |
563 len = 0; | |
564 | |
565 for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
566 if (value[i].data[j] == ':') { | |
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567 value[i].data[j] = '\0'; |
973 | 568 break; |
569 } | |
570 | |
571 len++; | |
572 } | |
573 | |
574 if (len == 0) { | |
575 goto invalid; | |
576 } | |
577 | |
578 name.len = len; | |
579 name.data = value[i].data + sizeof("shared:") - 1; | |
580 | |
581 size.len = value[i].len - j - 1; | |
582 size.data = name.data + len + 1; | |
583 | |
584 n = ngx_parse_size(&size); | |
585 | |
586 if (n == NGX_ERROR) { | |
587 goto invalid; | |
588 } | |
589 | |
590 if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
591 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
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592 "session cache \"%V\" is too small", |
973 | 593 &value[i]); |
594 | |
595 return NGX_CONF_ERROR; | |
596 } | |
597 | |
598 sscf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
599 &ngx_http_ssl_module); | |
600 if (sscf->shm_zone == NULL) { | |
601 return NGX_CONF_ERROR; | |
602 } | |
603 | |
604 continue; | |
605 } | |
606 | |
607 goto invalid; | |
608 } | |
609 | |
610 if (sscf->shm_zone && sscf->builtin_session_cache == NGX_CONF_UNSET) { | |
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611 sscf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; |
973 | 612 } |
613 | |
614 return NGX_CONF_OK; | |
615 | |
616 invalid: | |
617 | |
618 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
619 "invalid session cache \"%V\"", &value[i]); | |
620 | |
621 return NGX_CONF_ERROR; | |
622 } |