|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_http.h>
|
|
|
10
|
|
122
|
11
|
|
220
|
12 typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c,
|
|
|
13 ngx_pool_t *pool, ngx_str_t *s);
|
|
160
|
14
|
|
|
15
|
|
0
|
16 #define NGX_DEFLAUT_CERTIFICATE "cert.pem"
|
|
|
17 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
|
|
96
|
18 #define NGX_DEFLAUT_CIPHERS "ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP"
|
|
0
|
19
|
|
|
20
|
|
220
|
21 static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r,
|
|
160
|
22 ngx_http_variable_value_t *v, uintptr_t data);
|
|
220
|
23 static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r,
|
|
196
|
24 ngx_http_variable_value_t *v, uintptr_t data);
|
|
160
|
25
|
|
|
26 static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf);
|
|
0
|
27 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf);
|
|
|
28 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
|
|
50
|
29 void *parent, void *child);
|
|
0
|
30
|
|
112
|
31 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE)
|
|
|
32
|
|
|
33 static char *ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
34 void *conf);
|
|
|
35
|
|
|
36 static char ngx_http_ssl_openssl097[] = "OpenSSL 0.9.7 and higher";
|
|
|
37
|
|
|
38 #endif
|
|
|
39
|
|
0
|
40
|
|
96
|
41 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = {
|
|
|
42 { ngx_string("SSLv2"), NGX_SSL_SSLv2 },
|
|
|
43 { ngx_string("SSLv3"), NGX_SSL_SSLv3 },
|
|
|
44 { ngx_string("TLSv1"), NGX_SSL_TLSv1 },
|
|
|
45 { ngx_null_string, 0 }
|
|
|
46 };
|
|
|
47
|
|
|
48
|
|
0
|
49 static ngx_command_t ngx_http_ssl_commands[] = {
|
|
|
50
|
|
|
51 { ngx_string("ssl"),
|
|
148
|
52 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
|
|
0
|
53 ngx_conf_set_flag_slot,
|
|
|
54 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
55 offsetof(ngx_http_ssl_srv_conf_t, enable),
|
|
|
56 NULL },
|
|
|
57
|
|
|
58 { ngx_string("ssl_certificate"),
|
|
148
|
59 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
|
|
0
|
60 ngx_conf_set_str_slot,
|
|
|
61 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
62 offsetof(ngx_http_ssl_srv_conf_t, certificate),
|
|
|
63 NULL },
|
|
|
64
|
|
|
65 { ngx_string("ssl_certificate_key"),
|
|
148
|
66 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
|
|
0
|
67 ngx_conf_set_str_slot,
|
|
|
68 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
69 offsetof(ngx_http_ssl_srv_conf_t, certificate_key),
|
|
|
70 NULL },
|
|
|
71
|
|
96
|
72 { ngx_string("ssl_protocols"),
|
|
112
|
73 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
|
|
96
|
74 ngx_conf_set_bitmask_slot,
|
|
|
75 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
76 offsetof(ngx_http_ssl_srv_conf_t, protocols),
|
|
|
77 &ngx_http_ssl_protocols },
|
|
|
78
|
|
28
|
79 { ngx_string("ssl_ciphers"),
|
|
112
|
80 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
|
|
28
|
81 ngx_conf_set_str_slot,
|
|
|
82 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
83 offsetof(ngx_http_ssl_srv_conf_t, ciphers),
|
|
|
84 NULL },
|
|
|
85
|
|
196
|
86 { ngx_string("ssl_verify_client"),
|
|
216
|
87 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
|
|
196
|
88 ngx_conf_set_flag_slot,
|
|
|
89 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
90 offsetof(ngx_http_ssl_srv_conf_t, verify),
|
|
|
91 NULL },
|
|
|
92
|
|
|
93 { ngx_string("ssl_verify_depth"),
|
|
|
94 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
|
|
|
95 ngx_conf_set_num_slot,
|
|
|
96 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
97 offsetof(ngx_http_ssl_srv_conf_t, verify_depth),
|
|
|
98 NULL },
|
|
|
99
|
|
|
100 { ngx_string("ssl_client_certificate"),
|
|
|
101 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
|
|
|
102 ngx_conf_set_str_slot,
|
|
|
103 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
104 offsetof(ngx_http_ssl_srv_conf_t, client_certificate),
|
|
|
105 NULL },
|
|
|
106
|
|
96
|
107 { ngx_string("ssl_prefer_server_ciphers"),
|
|
|
108 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
|
|
112
|
109 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
|
|
96
|
110 ngx_conf_set_flag_slot,
|
|
|
111 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
112 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers),
|
|
|
113 NULL },
|
|
112
|
114 #else
|
|
|
115 ngx_http_ssl_nosupported, 0, 0, ngx_http_ssl_openssl097 },
|
|
|
116 #endif
|
|
96
|
117
|
|
122
|
118 { ngx_string("ssl_session_timeout"),
|
|
|
119 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
|
|
|
120 ngx_conf_set_sec_slot,
|
|
|
121 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
122 offsetof(ngx_http_ssl_srv_conf_t, session_timeout),
|
|
|
123 NULL },
|
|
|
124
|
|
0
|
125 ngx_null_command
|
|
|
126 };
|
|
|
127
|
|
|
128
|
|
|
129 static ngx_http_module_t ngx_http_ssl_module_ctx = {
|
|
160
|
130 ngx_http_ssl_add_variables, /* preconfiguration */
|
|
58
|
131 NULL, /* postconfiguration */
|
|
0
|
132
|
|
90
|
133 NULL, /* create main configuration */
|
|
|
134 NULL, /* init main configuration */
|
|
0
|
135
|
|
|
136 ngx_http_ssl_create_srv_conf, /* create server configuration */
|
|
|
137 ngx_http_ssl_merge_srv_conf, /* merge server configuration */
|
|
|
138
|
|
|
139 NULL, /* create location configuration */
|
|
34
|
140 NULL /* merge location configuration */
|
|
0
|
141 };
|
|
|
142
|
|
|
143
|
|
|
144 ngx_module_t ngx_http_ssl_module = {
|
|
58
|
145 NGX_MODULE_V1,
|
|
0
|
146 &ngx_http_ssl_module_ctx, /* module context */
|
|
|
147 ngx_http_ssl_commands, /* module directives */
|
|
|
148 NGX_HTTP_MODULE, /* module type */
|
|
90
|
149 NULL, /* init master */
|
|
0
|
150 NULL, /* init module */
|
|
90
|
151 NULL, /* init process */
|
|
|
152 NULL, /* init thread */
|
|
|
153 NULL, /* exit thread */
|
|
|
154 NULL, /* exit process */
|
|
|
155 NULL, /* exit master */
|
|
|
156 NGX_MODULE_V1_PADDING
|
|
0
|
157 };
|
|
|
158
|
|
|
159
|
|
160
|
160 static ngx_http_variable_t ngx_http_ssl_vars[] = {
|
|
|
161
|
|
220
|
162 { ngx_string("ssl_protocol"), NULL, ngx_http_ssl_static_variable,
|
|
160
|
163 (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
|
164
|
|
220
|
165 { ngx_string("ssl_cipher"), NULL, ngx_http_ssl_static_variable,
|
|
160
|
166 (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
|
167
|
|
220
|
168 { ngx_string("ssl_client_s_dn"), NULL, ngx_http_ssl_variable,
|
|
|
169 (uintptr_t) ngx_ssl_get_subject_dn, NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
196
|
170
|
|
220
|
171 { ngx_string("ssl_client_i_dn"), NULL, ngx_http_ssl_variable,
|
|
|
172 (uintptr_t) ngx_ssl_get_issuer_dn, NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
|
173
|
|
|
174 { ngx_string("ssl_client_serial"), NULL, ngx_http_ssl_variable,
|
|
|
175 (uintptr_t) ngx_ssl_get_serial_number, NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
196
|
176
|
|
186
|
177 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
160
|
178 };
|
|
|
179
|
|
|
180
|
|
92
|
181 static u_char ngx_http_session_id_ctx[] = "HTTP";
|
|
|
182
|
|
|
183
|
|
160
|
184 static ngx_int_t
|
|
220
|
185 ngx_http_ssl_static_variable(ngx_http_request_t *r,
|
|
160
|
186 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
187 {
|
|
220
|
188 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data;
|
|
160
|
189
|
|
220
|
190 size_t len;
|
|
160
|
191
|
|
|
192 if (r->connection->ssl) {
|
|
|
193
|
|
220
|
194 (void) handler(r->connection, NULL, (ngx_str_t *) v);
|
|
160
|
195
|
|
220
|
196 for (len = 0; v->data[len]; len++) { /* void */ }
|
|
160
|
197
|
|
|
198 v->len = len;
|
|
|
199 v->valid = 1;
|
|
|
200 v->no_cachable = 0;
|
|
|
201 v->not_found = 0;
|
|
|
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
|
|
220
|
213 ngx_http_ssl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
196
|
214 uintptr_t data)
|
|
|
215 {
|
|
220
|
216 ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data;
|
|
196
|
217
|
|
|
218 if (r->connection->ssl) {
|
|
220
|
219 if (handler(r->connection, r->pool, (ngx_str_t *) v) != NGX_OK) {
|
|
196
|
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
|
|
160
|
239 ngx_http_ssl_add_variables(ngx_conf_t *cf)
|
|
|
240 {
|
|
|
241 ngx_http_variable_t *var, *v;
|
|
|
242
|
|
|
243 for (v = ngx_http_ssl_vars; v->name.len; v++) {
|
|
|
244 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
245 if (var == NULL) {
|
|
|
246 return NGX_ERROR;
|
|
|
247 }
|
|
|
248
|
|
186
|
249 var->get_handler = v->get_handler;
|
|
160
|
250 var->data = v->data;
|
|
|
251 }
|
|
|
252
|
|
|
253 return NGX_OK;
|
|
|
254 }
|
|
|
255
|
|
|
256
|
|
50
|
257 static void *
|
|
|
258 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf)
|
|
0
|
259 {
|
|
|
260 ngx_http_ssl_srv_conf_t *scf;
|
|
|
261
|
|
50
|
262 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t));
|
|
|
263 if (scf == NULL) {
|
|
0
|
264 return NGX_CONF_ERROR;
|
|
|
265 }
|
|
|
266
|
|
28
|
267 /*
|
|
|
268 * set by ngx_pcalloc():
|
|
|
269 *
|
|
96
|
270 * scf->protocols = 0;
|
|
|
271
|
|
28
|
272 * scf->certificate.len = 0;
|
|
|
273 * scf->certificate.data = NULL;
|
|
|
274 * scf->certificate_key.len = 0;
|
|
|
275 * scf->certificate_key.data = NULL;
|
|
196
|
276 * scf->client_certificate.len = 0;
|
|
|
277 * scf->client_certificate.data = NULL;
|
|
28
|
278 * scf->ciphers.len = 0;
|
|
|
279 * scf->ciphers.data = NULL;
|
|
|
280 */
|
|
|
281
|
|
0
|
282 scf->enable = NGX_CONF_UNSET;
|
|
122
|
283 scf->session_timeout = NGX_CONF_UNSET;
|
|
196
|
284 scf->verify = NGX_CONF_UNSET;
|
|
|
285 scf->verify_depth = NGX_CONF_UNSET;
|
|
96
|
286 scf->prefer_server_ciphers = NGX_CONF_UNSET;
|
|
0
|
287
|
|
|
288 return scf;
|
|
|
289 }
|
|
|
290
|
|
|
291
|
|
50
|
292 static char *
|
|
|
293 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
0
|
294 {
|
|
|
295 ngx_http_ssl_srv_conf_t *prev = parent;
|
|
|
296 ngx_http_ssl_srv_conf_t *conf = child;
|
|
|
297
|
|
112
|
298 ngx_pool_cleanup_t *cln;
|
|
|
299
|
|
0
|
300 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
301
|
|
|
302 if (conf->enable == 0) {
|
|
|
303 return NGX_CONF_OK;
|
|
|
304 }
|
|
|
305
|
|
122
|
306 ngx_conf_merge_value(conf->session_timeout,
|
|
|
307 prev->session_timeout, 300);
|
|
|
308
|
|
96
|
309 ngx_conf_merge_value(conf->prefer_server_ciphers,
|
|
|
310 prev->prefer_server_ciphers, 0);
|
|
|
311
|
|
|
312 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
|
|
|
313 (NGX_CONF_BITMASK_SET
|
|
|
314 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1));
|
|
|
315
|
|
196
|
316 ngx_conf_merge_value(conf->verify, prev->verify, 0);
|
|
|
317 ngx_conf_merge_value(conf->verify_depth, prev->verify_depth, 1);
|
|
|
318
|
|
0
|
319 ngx_conf_merge_str_value(conf->certificate, prev->certificate,
|
|
96
|
320 NGX_DEFLAUT_CERTIFICATE);
|
|
0
|
321
|
|
|
322 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
|
|
96
|
323 NGX_DEFLAUT_CERTIFICATE_KEY);
|
|
0
|
324
|
|
196
|
325 ngx_conf_merge_str_value(conf->client_certificate, prev->client_certificate,
|
|
|
326 "");
|
|
|
327
|
|
96
|
328 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFLAUT_CIPHERS);
|
|
28
|
329
|
|
|
330
|
|
96
|
331 conf->ssl.log = cf->log;
|
|
0
|
332
|
|
96
|
333 if (ngx_ssl_create(&conf->ssl, conf->protocols) != NGX_OK) {
|
|
0
|
334 return NGX_CONF_ERROR;
|
|
|
335 }
|
|
|
336
|
|
112
|
337 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
|
338 if (cln == NULL) {
|
|
58
|
339 return NGX_CONF_ERROR;
|
|
|
340 }
|
|
|
341
|
|
112
|
342 cln->handler = ngx_ssl_cleanup_ctx;
|
|
|
343 cln->data = &conf->ssl;
|
|
|
344
|
|
|
345 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate,
|
|
|
346 &conf->certificate_key) != NGX_OK)
|
|
78
|
347 {
|
|
0
|
348 return NGX_CONF_ERROR;
|
|
|
349 }
|
|
|
350
|
|
96
|
351 if (SSL_CTX_set_cipher_list(conf->ssl.ctx,
|
|
112
|
352 (const char *) conf->ciphers.data)
|
|
|
353 == 0)
|
|
78
|
354 {
|
|
0
|
355 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
|
|
96
|
356 "SSL_CTX_set_cipher_list(\"%V\") failed",
|
|
|
357 &conf->ciphers);
|
|
|
358 }
|
|
|
359
|
|
196
|
360 if (conf->verify) {
|
|
220
|
361 if (ngx_ssl_client_certificate(cf, &conf->ssl,
|
|
|
362 &conf->client_certificate, conf->verify_depth)
|
|
|
363 != NGX_OK)
|
|
|
364 {
|
|
|
365 return NGX_CONF_ERROR;
|
|
196
|
366 }
|
|
|
367 }
|
|
|
368
|
|
112
|
369 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
|
|
|
370
|
|
96
|
371 if (conf->prefer_server_ciphers) {
|
|
|
372 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
|
|
373 }
|
|
|
374
|
|
112
|
375 #endif
|
|
|
376
|
|
96
|
377 /* a temporary 512-bit RSA key is required for export versions of MSIE */
|
|
|
378 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) {
|
|
0
|
379 return NGX_CONF_ERROR;
|
|
|
380 }
|
|
|
381
|
|
96
|
382 SSL_CTX_set_session_cache_mode(conf->ssl.ctx, SSL_SESS_CACHE_SERVER);
|
|
92
|
383
|
|
96
|
384 SSL_CTX_set_session_id_context(conf->ssl.ctx, ngx_http_session_id_ctx,
|
|
92
|
385 sizeof(ngx_http_session_id_ctx) - 1);
|
|
90
|
386
|
|
122
|
387 SSL_CTX_set_timeout(conf->ssl.ctx, conf->session_timeout);
|
|
|
388
|
|
0
|
389 return NGX_CONF_OK;
|
|
|
390 }
|
|
112
|
391
|
|
|
392
|
|
|
393 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE)
|
|
|
394
|
|
|
395 static char *
|
|
|
396 ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
397 {
|
|
|
398 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
399 "\"%V\" directive is available only in %s,",
|
|
|
400 &cmd->name, cmd->post);
|
|
|
401
|
|
|
402 return NGX_CONF_ERROR;
|
|
|
403 }
|
|
|
404
|
|
|
405 #endif
|
