Mercurial > hg > nginx
annotate src/http/modules/ngx_http_ssl_module.c @ 4245:8d39230df833 stable-1.0
Merging r4034, r4186, r4187, r4229, r4235, r4237:
SSL related fixes:
*) Better handling of various per-server ssl options with SNI.
SSL_set_SSL_CTX() doesn't touch values cached within ssl connection
structure, it only changes certificates (at least as of now, OpenSSL
1.0.0d and earlier).
As a result settings like ssl_verify_client, ssl_verify_depth,
ssl_prefer_server_ciphers are only configurable on per-socket basis while
with SNI it should be possible to specify them different for two servers
listening on the same socket.
Workaround is to explicitly re-apply settings we care about from context
to ssl connection in servername callback.
Note that SSL_clear_options() is only available in OpenSSL 0.9.8m+. I.e.
with older versions it is not possible to clear ssl_prefer_server_ciphers
option if it's set in default server for a socket.
*) Disabling SSL compression. This saves about 300K per SSL connection.
The SSL_OP_NO_COMPRESSION option is available since OpenSSL 1.0.0.
*) Releasing memory of idle SSL connection. This saves about 34K per SSL
connection. The SSL_MODE_RELEASE_BUFFERS option is available since
OpenSSL 1.0.0d.
*) Decrease of log level of some SSL handshake errors.
*) Fixed segfault on configuration testing with ssl (ticket #37).
The following config caused segmentation fault due to conf->file not
being properly set if "ssl on" was inherited from the http level:
http {
ssl on;
server {
}
}
*) Silently ignoring a stale global SSL error left after disabled renegotiation.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Nov 2011 13:00:30 +0000 |
parents | 718f2154b813 |
children | efd515ace6bb |
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 | |
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16 #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" |
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17 #define NGX_DEFAULT_ECDH_CURVE "prime256v1" |
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18 |
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19 |
671 | 20 static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, |
611 | 21 ngx_http_variable_value_t *v, uintptr_t data); |
671 | 22 static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r, |
647 | 23 ngx_http_variable_value_t *v, uintptr_t data); |
611 | 24 |
25 static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf); | |
383
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26 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); |
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27 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, |
501 | 28 void *parent, void *child); |
383
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29 |
2224 | 30 static char *ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, |
31 void *conf); | |
973 | 32 static char *ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
33 void *conf); | |
34 | |
383
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35 |
547 | 36 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = { |
37 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
38 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
39 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
40 { ngx_null_string, 0 } | |
41 }; | |
42 | |
43 | |
2123 | 44 static ngx_conf_enum_t ngx_http_ssl_verify[] = { |
45 { ngx_string("off"), 0 }, | |
46 { ngx_string("on"), 1 }, | |
2994 | 47 { ngx_string("optional"), 2 }, |
2123 | 48 { ngx_null_string, 0 } |
49 }; | |
50 | |
51 | |
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52 static ngx_command_t ngx_http_ssl_commands[] = { |
383
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53 |
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54 { ngx_string("ssl"), |
599 | 55 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
2224 | 56 ngx_http_ssl_enable, |
383
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57 NGX_HTTP_SRV_CONF_OFFSET, |
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58 offsetof(ngx_http_ssl_srv_conf_t, enable), |
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59 NULL }, |
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60 |
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61 { ngx_string("ssl_certificate"), |
599 | 62 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
383
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63 ngx_conf_set_str_slot, |
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64 NGX_HTTP_SRV_CONF_OFFSET, |
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65 offsetof(ngx_http_ssl_srv_conf_t, certificate), |
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66 NULL }, |
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67 |
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68 { ngx_string("ssl_certificate_key"), |
599 | 69 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
383
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70 ngx_conf_set_str_slot, |
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71 NGX_HTTP_SRV_CONF_OFFSET, |
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72 offsetof(ngx_http_ssl_srv_conf_t, certificate_key), |
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73 NULL }, |
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74 |
2044 | 75 { ngx_string("ssl_dhparam"), |
76 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
77 ngx_conf_set_str_slot, | |
78 NGX_HTTP_SRV_CONF_OFFSET, | |
79 offsetof(ngx_http_ssl_srv_conf_t, dhparam), | |
80 NULL }, | |
81 | |
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82 { ngx_string("ssl_ecdh_curve"), |
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83 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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84 ngx_conf_set_str_slot, |
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85 NGX_HTTP_SRV_CONF_OFFSET, |
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86 offsetof(ngx_http_ssl_srv_conf_t, ecdh_curve), |
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87 NULL }, |
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88 |
547 | 89 { ngx_string("ssl_protocols"), |
563 | 90 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, |
547 | 91 ngx_conf_set_bitmask_slot, |
92 NGX_HTTP_SRV_CONF_OFFSET, | |
93 offsetof(ngx_http_ssl_srv_conf_t, protocols), | |
94 &ngx_http_ssl_protocols }, | |
95 | |
479 | 96 { ngx_string("ssl_ciphers"), |
563 | 97 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
479 | 98 ngx_conf_set_str_slot, |
99 NGX_HTTP_SRV_CONF_OFFSET, | |
100 offsetof(ngx_http_ssl_srv_conf_t, ciphers), | |
101 NULL }, | |
102 | |
647 | 103 { ngx_string("ssl_verify_client"), |
667 | 104 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
2123 | 105 ngx_conf_set_enum_slot, |
647 | 106 NGX_HTTP_SRV_CONF_OFFSET, |
107 offsetof(ngx_http_ssl_srv_conf_t, verify), | |
2123 | 108 &ngx_http_ssl_verify }, |
647 | 109 |
110 { ngx_string("ssl_verify_depth"), | |
111 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, | |
112 ngx_conf_set_num_slot, | |
113 NGX_HTTP_SRV_CONF_OFFSET, | |
114 offsetof(ngx_http_ssl_srv_conf_t, verify_depth), | |
115 NULL }, | |
116 | |
117 { ngx_string("ssl_client_certificate"), | |
118 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
119 ngx_conf_set_str_slot, | |
120 NGX_HTTP_SRV_CONF_OFFSET, | |
121 offsetof(ngx_http_ssl_srv_conf_t, client_certificate), | |
122 NULL }, | |
123 | |
547 | 124 { ngx_string("ssl_prefer_server_ciphers"), |
125 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, | |
126 ngx_conf_set_flag_slot, | |
127 NGX_HTTP_SRV_CONF_OFFSET, | |
128 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), | |
129 NULL }, | |
130 | |
973 | 131 { ngx_string("ssl_session_cache"), |
132 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE12, | |
133 ngx_http_ssl_session_cache, | |
134 NGX_HTTP_SRV_CONF_OFFSET, | |
135 0, | |
136 NULL }, | |
137 | |
573 | 138 { ngx_string("ssl_session_timeout"), |
139 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
140 ngx_conf_set_sec_slot, | |
141 NGX_HTTP_SRV_CONF_OFFSET, | |
142 offsetof(ngx_http_ssl_srv_conf_t, session_timeout), | |
143 NULL }, | |
144 | |
2995 | 145 { ngx_string("ssl_crl"), |
146 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
147 ngx_conf_set_str_slot, | |
148 NGX_HTTP_SRV_CONF_OFFSET, | |
149 offsetof(ngx_http_ssl_srv_conf_t, crl), | |
150 NULL }, | |
151 | |
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152 ngx_null_command |
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153 }; |
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154 |
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155 |
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156 static ngx_http_module_t ngx_http_ssl_module_ctx = { |
611 | 157 ngx_http_ssl_add_variables, /* preconfiguration */ |
509 | 158 NULL, /* postconfiguration */ |
383
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159 |
541 | 160 NULL, /* create main configuration */ |
161 NULL, /* init main configuration */ | |
383
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162 |
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163 ngx_http_ssl_create_srv_conf, /* create server configuration */ |
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164 ngx_http_ssl_merge_srv_conf, /* merge server configuration */ |
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165 |
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166 NULL, /* create location configuration */ |
485 | 167 NULL /* merge location configuration */ |
383
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168 }; |
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169 |
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170 |
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171 ngx_module_t ngx_http_ssl_module = { |
509 | 172 NGX_MODULE_V1, |
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173 &ngx_http_ssl_module_ctx, /* module context */ |
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174 ngx_http_ssl_commands, /* module directives */ |
383
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175 NGX_HTTP_MODULE, /* module type */ |
541 | 176 NULL, /* init master */ |
393
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177 NULL, /* init module */ |
541 | 178 NULL, /* init process */ |
179 NULL, /* init thread */ | |
180 NULL, /* exit thread */ | |
181 NULL, /* exit process */ | |
182 NULL, /* exit master */ | |
183 NGX_MODULE_V1_PADDING | |
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184 }; |
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185 |
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186 |
611 | 187 static ngx_http_variable_t ngx_http_ssl_vars[] = { |
188 | |
671 | 189 { ngx_string("ssl_protocol"), NULL, ngx_http_ssl_static_variable, |
1565 | 190 (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
611 | 191 |
671 | 192 { ngx_string("ssl_cipher"), NULL, ngx_http_ssl_static_variable, |
1565 | 193 (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
611 | 194 |
3154 | 195 { ngx_string("ssl_session_id"), NULL, ngx_http_ssl_variable, |
196 (uintptr_t) ngx_ssl_get_session_id, NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
197 | |
2045 | 198 { ngx_string("ssl_client_cert"), NULL, ngx_http_ssl_variable, |
199 (uintptr_t) ngx_ssl_get_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
200 | |
2123 | 201 { ngx_string("ssl_client_raw_cert"), NULL, ngx_http_ssl_variable, |
202 (uintptr_t) ngx_ssl_get_raw_certificate, | |
203 NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
204 | |
671 | 205 { ngx_string("ssl_client_s_dn"), NULL, ngx_http_ssl_variable, |
1565 | 206 (uintptr_t) ngx_ssl_get_subject_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
647 | 207 |
671 | 208 { ngx_string("ssl_client_i_dn"), NULL, ngx_http_ssl_variable, |
1565 | 209 (uintptr_t) ngx_ssl_get_issuer_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
671 | 210 |
211 { ngx_string("ssl_client_serial"), NULL, ngx_http_ssl_variable, | |
1565 | 212 (uintptr_t) ngx_ssl_get_serial_number, NGX_HTTP_VAR_CHANGEABLE, 0 }, |
647 | 213 |
2994 | 214 { ngx_string("ssl_client_verify"), NULL, ngx_http_ssl_variable, |
215 (uintptr_t) ngx_ssl_get_client_verify, NGX_HTTP_VAR_CHANGEABLE, 0 }, | |
216 | |
637 | 217 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
611 | 218 }; |
219 | |
220 | |
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221 static ngx_str_t ngx_http_ssl_sess_id_ctx = ngx_string("HTTP"); |
973 | 222 |
223 | |
224 static ngx_int_t | |
671 | 225 ngx_http_ssl_static_variable(ngx_http_request_t *r, |
611 | 226 ngx_http_variable_value_t *v, uintptr_t data) |
227 { | |
671 | 228 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
611 | 229 |
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230 size_t len; |
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231 ngx_str_t s; |
611 | 232 |
233 if (r->connection->ssl) { | |
234 | |
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235 (void) handler(r->connection, NULL, &s); |
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236 |
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237 v->data = s.data; |
611 | 238 |
671 | 239 for (len = 0; v->data[len]; len++) { /* void */ } |
611 | 240 |
241 v->len = len; | |
242 v->valid = 1; | |
1565 | 243 v->no_cacheable = 0; |
611 | 244 v->not_found = 0; |
245 | |
246 return NGX_OK; | |
247 } | |
248 | |
249 v->not_found = 1; | |
250 | |
251 return NGX_OK; | |
252 } | |
253 | |
254 | |
255 static ngx_int_t | |
671 | 256 ngx_http_ssl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
647 | 257 uintptr_t data) |
258 { | |
671 | 259 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
647 | 260 |
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261 ngx_str_t s; |
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262 |
647 | 263 if (r->connection->ssl) { |
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264 |
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265 if (handler(r->connection, r->pool, &s) != NGX_OK) { |
647 | 266 return NGX_ERROR; |
267 } | |
268 | |
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269 v->len = s.len; |
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270 v->data = s.data; |
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271 |
647 | 272 if (v->len) { |
273 v->valid = 1; | |
1565 | 274 v->no_cacheable = 0; |
647 | 275 v->not_found = 0; |
276 | |
277 return NGX_OK; | |
278 } | |
279 } | |
280 | |
281 v->not_found = 1; | |
282 | |
283 return NGX_OK; | |
284 } | |
285 | |
286 | |
287 static ngx_int_t | |
611 | 288 ngx_http_ssl_add_variables(ngx_conf_t *cf) |
289 { | |
290 ngx_http_variable_t *var, *v; | |
291 | |
292 for (v = ngx_http_ssl_vars; v->name.len; v++) { | |
293 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
294 if (var == NULL) { | |
295 return NGX_ERROR; | |
296 } | |
297 | |
637 | 298 var->get_handler = v->get_handler; |
611 | 299 var->data = v->data; |
300 } | |
301 | |
302 return NGX_OK; | |
303 } | |
304 | |
305 | |
501 | 306 static void * |
307 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf) | |
383
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308 { |
971 | 309 ngx_http_ssl_srv_conf_t *sscf; |
383
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310 |
971 | 311 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); |
312 if (sscf == NULL) { | |
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313 return NULL; |
383
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314 } |
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315 |
479 | 316 /* |
317 * set by ngx_pcalloc(): | |
318 * | |
971 | 319 * sscf->protocols = 0; |
2044 | 320 * sscf->certificate = { 0, NULL }; |
321 * sscf->certificate_key = { 0, NULL }; | |
322 * sscf->dhparam = { 0, NULL }; | |
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323 * sscf->ecdh_curve = { 0, NULL }; |
2044 | 324 * sscf->client_certificate = { 0, NULL }; |
2995 | 325 * sscf->crl = { 0, NULL }; |
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326 * sscf->ciphers = { 0, NULL }; |
973 | 327 * sscf->shm_zone = NULL; |
479 | 328 */ |
329 | |
971 | 330 sscf->enable = NGX_CONF_UNSET; |
2123 | 331 sscf->prefer_server_ciphers = NGX_CONF_UNSET; |
2710 | 332 sscf->verify = NGX_CONF_UNSET_UINT; |
333 sscf->verify_depth = NGX_CONF_UNSET_UINT; | |
973 | 334 sscf->builtin_session_cache = NGX_CONF_UNSET; |
335 sscf->session_timeout = NGX_CONF_UNSET; | |
383
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336 |
971 | 337 return sscf; |
383
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338 } |
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339 |
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340 |
501 | 341 static char * |
342 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
383
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343 { |
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344 ngx_http_ssl_srv_conf_t *prev = parent; |
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345 ngx_http_ssl_srv_conf_t *conf = child; |
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346 |
563 | 347 ngx_pool_cleanup_t *cln; |
348 | |
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349 if (conf->enable == NGX_CONF_UNSET) { |
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350 if (prev->enable == NGX_CONF_UNSET) { |
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351 conf->enable = 0; |
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352 |
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353 } else { |
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354 conf->enable = prev->enable; |
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355 conf->file = prev->file; |
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356 conf->line = prev->line; |
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357 } |
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358 } |
383
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359 |
573 | 360 ngx_conf_merge_value(conf->session_timeout, |
361 prev->session_timeout, 300); | |
362 | |
547 | 363 ngx_conf_merge_value(conf->prefer_server_ciphers, |
364 prev->prefer_server_ciphers, 0); | |
365 | |
366 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
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367 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); |
547 | 368 |
2123 | 369 ngx_conf_merge_uint_value(conf->verify, prev->verify, 0); |
370 ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1); | |
647 | 371 |
2224 | 372 ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); |
373 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
383
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374 |
2044 | 375 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); |
376 | |
647 | 377 ngx_conf_merge_str_value(conf->client_certificate, prev->client_certificate, |
378 ""); | |
2995 | 379 ngx_conf_merge_str_value(conf->crl, prev->crl, ""); |
647 | 380 |
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381 ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, |
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382 NGX_DEFAULT_ECDH_CURVE); |
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383 |
2124 | 384 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); |
479 | 385 |
386 | |
547 | 387 conf->ssl.log = cf->log; |
386
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388 |
2224 | 389 if (conf->enable) { |
390 | |
391 if (conf->certificate.len == 0) { | |
392 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
393 "no \"ssl_certificate\" is defined for " | |
394 "the \"ssl\" directive in %s:%ui", | |
395 conf->file, conf->line); | |
396 return NGX_CONF_ERROR; | |
397 } | |
398 | |
399 if (conf->certificate_key.len == 0) { | |
400 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
401 "no \"ssl_certificate_key\" is defined for " | |
402 "the \"ssl\" directive in %s:%ui", | |
403 conf->file, conf->line); | |
404 return NGX_CONF_ERROR; | |
405 } | |
406 | |
407 } else { | |
408 | |
409 if (conf->certificate.len == 0) { | |
410 return NGX_CONF_OK; | |
411 } | |
412 | |
413 if (conf->certificate_key.len == 0) { | |
414 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
415 "no \"ssl_certificate_key\" is defined " | |
416 "for certificate \"%V\"", &conf->certificate); | |
417 return NGX_CONF_ERROR; | |
418 } | |
419 } | |
420 | |
969 | 421 if (ngx_ssl_create(&conf->ssl, conf->protocols, conf) != NGX_OK) { |
386
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422 return NGX_CONF_ERROR; |
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423 } |
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424 |
1219 | 425 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
426 | |
427 if (SSL_CTX_set_tlsext_servername_callback(conf->ssl.ctx, | |
428 ngx_http_ssl_servername) | |
429 == 0) | |
430 { | |
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431 ngx_log_error(NGX_LOG_WARN, cf->log, 0, |
3209 | 432 "nginx was built with SNI support, however, now it is linked " |
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433 "dynamically to an OpenSSL library which has no tlsext support, " |
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434 "therefore SNI is not available"); |
1219 | 435 } |
436 | |
437 #endif | |
438 | |
563 | 439 cln = ngx_pool_cleanup_add(cf->pool, 0); |
440 if (cln == NULL) { | |
509 | 441 return NGX_CONF_ERROR; |
442 } | |
443 | |
563 | 444 cln->handler = ngx_ssl_cleanup_ctx; |
445 cln->data = &conf->ssl; | |
446 | |
447 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
970 | 448 &conf->certificate_key) |
449 != NGX_OK) | |
529 | 450 { |
386
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451 return NGX_CONF_ERROR; |
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452 } |
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453 |
547 | 454 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
563 | 455 (const char *) conf->ciphers.data) |
456 == 0) | |
529 | 457 { |
395
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458 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
547 | 459 "SSL_CTX_set_cipher_list(\"%V\") failed", |
460 &conf->ciphers); | |
461 } | |
462 | |
647 | 463 if (conf->verify) { |
2123 | 464 |
465 if (conf->client_certificate.len == 0) { | |
466 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
467 "no ssl_client_certificate for ssl_client_verify"); | |
468 return NGX_CONF_ERROR; | |
469 } | |
470 | |
671 | 471 if (ngx_ssl_client_certificate(cf, &conf->ssl, |
970 | 472 &conf->client_certificate, |
473 conf->verify_depth) | |
671 | 474 != NGX_OK) |
475 { | |
476 return NGX_CONF_ERROR; | |
647 | 477 } |
2995 | 478 |
479 if (ngx_ssl_crl(cf, &conf->ssl, &conf->crl) != NGX_OK) { | |
480 return NGX_CONF_ERROR; | |
481 } | |
647 | 482 } |
483 | |
547 | 484 if (conf->prefer_server_ciphers) { |
485 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
486 } | |
487 | |
488 /* a temporary 512-bit RSA key is required for export versions of MSIE */ | |
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489 SSL_CTX_set_tmp_rsa_callback(conf->ssl.ctx, ngx_ssl_rsa512_key_callback); |
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490 |
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491 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { |
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492 return NGX_CONF_ERROR; |
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493 } |
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494 |
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495 if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) { |
2044 | 496 return NGX_CONF_ERROR; |
497 } | |
498 | |
973 | 499 ngx_conf_merge_value(conf->builtin_session_cache, |
2032 | 500 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); |
973 | 501 |
502 if (conf->shm_zone == NULL) { | |
503 conf->shm_zone = prev->shm_zone; | |
504 } | |
505 | |
974
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506 if (ngx_ssl_session_cache(&conf->ssl, &ngx_http_ssl_sess_id_ctx, |
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507 conf->builtin_session_cache, |
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508 conf->shm_zone, conf->session_timeout) |
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509 != NGX_OK) |
973 | 510 { |
974
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511 return NGX_CONF_ERROR; |
973 | 512 } |
573 | 513 |
383
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514 return NGX_CONF_OK; |
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515 } |
563 | 516 |
517 | |
973 | 518 static char * |
2224 | 519 ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
520 { | |
521 ngx_http_ssl_srv_conf_t *sscf = conf; | |
522 | |
523 char *rv; | |
524 | |
525 rv = ngx_conf_set_flag_slot(cf, cmd, conf); | |
526 | |
527 if (rv != NGX_CONF_OK) { | |
528 return rv; | |
529 } | |
530 | |
531 sscf->file = cf->conf_file->file.name.data; | |
532 sscf->line = cf->conf_file->line; | |
533 | |
534 return NGX_CONF_OK; | |
535 } | |
536 | |
537 | |
538 static char * | |
973 | 539 ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
540 { | |
541 ngx_http_ssl_srv_conf_t *sscf = conf; | |
542 | |
543 size_t len; | |
544 ngx_str_t *value, name, size; | |
545 ngx_int_t n; | |
546 ngx_uint_t i, j; | |
547 | |
548 value = cf->args->elts; | |
549 | |
550 for (i = 1; i < cf->args->nelts; i++) { | |
551 | |
1778 | 552 if (ngx_strcmp(value[i].data, "off") == 0) { |
553 sscf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
554 continue; | |
555 } | |
556 | |
2032 | 557 if (ngx_strcmp(value[i].data, "none") == 0) { |
558 sscf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
559 continue; | |
560 } | |
561 | |
973 | 562 if (ngx_strcmp(value[i].data, "builtin") == 0) { |
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563 sscf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; |
973 | 564 continue; |
565 } | |
566 | |
567 if (value[i].len > sizeof("builtin:") - 1 | |
568 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
569 == 0) | |
570 { | |
571 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
572 value[i].len - (sizeof("builtin:") - 1)); | |
573 | |
574 if (n == NGX_ERROR) { | |
575 goto invalid; | |
576 } | |
577 | |
578 sscf->builtin_session_cache = n; | |
579 | |
580 continue; | |
581 } | |
582 | |
583 if (value[i].len > sizeof("shared:") - 1 | |
584 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
585 == 0) | |
586 { | |
587 len = 0; | |
588 | |
589 for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
590 if (value[i].data[j] == ':') { | |
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591 value[i].data[j] = '\0'; |
973 | 592 break; |
593 } | |
594 | |
595 len++; | |
596 } | |
597 | |
598 if (len == 0) { | |
599 goto invalid; | |
600 } | |
601 | |
602 name.len = len; | |
603 name.data = value[i].data + sizeof("shared:") - 1; | |
604 | |
605 size.len = value[i].len - j - 1; | |
606 size.data = name.data + len + 1; | |
607 | |
608 n = ngx_parse_size(&size); | |
609 | |
610 if (n == NGX_ERROR) { | |
611 goto invalid; | |
612 } | |
613 | |
614 if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
615 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
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616 "session cache \"%V\" is too small", |
973 | 617 &value[i]); |
618 | |
619 return NGX_CONF_ERROR; | |
620 } | |
621 | |
622 sscf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
623 &ngx_http_ssl_module); | |
624 if (sscf->shm_zone == NULL) { | |
625 return NGX_CONF_ERROR; | |
626 } | |
627 | |
4159 | 628 sscf->shm_zone->init = ngx_ssl_session_cache_init; |
629 | |
973 | 630 continue; |
631 } | |
632 | |
633 goto invalid; | |
634 } | |
635 | |
636 if (sscf->shm_zone && sscf->builtin_session_cache == NGX_CONF_UNSET) { | |
974
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637 sscf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; |
973 | 638 } |
639 | |
640 return NGX_CONF_OK; | |
641 | |
642 invalid: | |
643 | |
644 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
645 "invalid session cache \"%V\"", &value[i]); | |
646 | |
647 return NGX_CONF_ERROR; | |
648 } |