6115
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 * Copyright (C) Nginx, Inc.
|
|
5 */
|
|
6
|
|
7
|
|
8 #include <ngx_config.h>
|
|
9 #include <ngx_core.h>
|
|
10 #include <ngx_stream.h>
|
|
11
|
|
12
|
|
13 #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5"
|
|
14 #define NGX_DEFAULT_ECDH_CURVE "prime256v1"
|
|
15
|
|
16
|
|
17 static void *ngx_stream_ssl_create_conf(ngx_conf_t *cf);
|
|
18 static char *ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent,
|
|
19 void *child);
|
|
20
|
|
21 static char *ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
22 void *conf);
|
|
23 static char *ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
24 void *conf);
|
|
25
|
|
26
|
|
27 static ngx_conf_bitmask_t ngx_stream_ssl_protocols[] = {
|
|
28 { ngx_string("SSLv2"), NGX_SSL_SSLv2 },
|
|
29 { ngx_string("SSLv3"), NGX_SSL_SSLv3 },
|
|
30 { ngx_string("TLSv1"), NGX_SSL_TLSv1 },
|
|
31 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 },
|
|
32 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 },
|
|
33 { ngx_null_string, 0 }
|
|
34 };
|
|
35
|
|
36
|
|
37 static ngx_command_t ngx_stream_ssl_commands[] = {
|
|
38
|
|
39 { ngx_string("ssl_handshake_timeout"),
|
|
40 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
41 ngx_conf_set_msec_slot,
|
|
42 NGX_STREAM_SRV_CONF_OFFSET,
|
|
43 offsetof(ngx_stream_ssl_conf_t, handshake_timeout),
|
|
44 NULL },
|
|
45
|
|
46 { ngx_string("ssl_certificate"),
|
|
47 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
48 ngx_conf_set_str_slot,
|
|
49 NGX_STREAM_SRV_CONF_OFFSET,
|
|
50 offsetof(ngx_stream_ssl_conf_t, certificate),
|
|
51 NULL },
|
|
52
|
|
53 { ngx_string("ssl_certificate_key"),
|
|
54 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
55 ngx_conf_set_str_slot,
|
|
56 NGX_STREAM_SRV_CONF_OFFSET,
|
|
57 offsetof(ngx_stream_ssl_conf_t, certificate_key),
|
|
58 NULL },
|
|
59
|
|
60 { ngx_string("ssl_password_file"),
|
|
61 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
62 ngx_stream_ssl_password_file,
|
|
63 NGX_STREAM_SRV_CONF_OFFSET,
|
|
64 0,
|
|
65 NULL },
|
|
66
|
|
67 { ngx_string("ssl_dhparam"),
|
|
68 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
69 ngx_conf_set_str_slot,
|
|
70 NGX_STREAM_SRV_CONF_OFFSET,
|
|
71 offsetof(ngx_stream_ssl_conf_t, dhparam),
|
|
72 NULL },
|
|
73
|
|
74 { ngx_string("ssl_ecdh_curve"),
|
|
75 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
76 ngx_conf_set_str_slot,
|
|
77 NGX_STREAM_SRV_CONF_OFFSET,
|
|
78 offsetof(ngx_stream_ssl_conf_t, ecdh_curve),
|
|
79 NULL },
|
|
80
|
|
81 { ngx_string("ssl_protocols"),
|
|
82 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE,
|
|
83 ngx_conf_set_bitmask_slot,
|
|
84 NGX_STREAM_SRV_CONF_OFFSET,
|
|
85 offsetof(ngx_stream_ssl_conf_t, protocols),
|
|
86 &ngx_stream_ssl_protocols },
|
|
87
|
|
88 { ngx_string("ssl_ciphers"),
|
|
89 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
90 ngx_conf_set_str_slot,
|
|
91 NGX_STREAM_SRV_CONF_OFFSET,
|
|
92 offsetof(ngx_stream_ssl_conf_t, ciphers),
|
|
93 NULL },
|
|
94
|
|
95 { ngx_string("ssl_prefer_server_ciphers"),
|
|
96 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
|
|
97 ngx_conf_set_flag_slot,
|
|
98 NGX_STREAM_SRV_CONF_OFFSET,
|
|
99 offsetof(ngx_stream_ssl_conf_t, prefer_server_ciphers),
|
|
100 NULL },
|
|
101
|
|
102 { ngx_string("ssl_session_cache"),
|
|
103 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE12,
|
|
104 ngx_stream_ssl_session_cache,
|
|
105 NGX_STREAM_SRV_CONF_OFFSET,
|
|
106 0,
|
|
107 NULL },
|
|
108
|
|
109 { ngx_string("ssl_session_tickets"),
|
|
110 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
|
|
111 ngx_conf_set_flag_slot,
|
|
112 NGX_STREAM_SRV_CONF_OFFSET,
|
|
113 offsetof(ngx_stream_ssl_conf_t, session_tickets),
|
|
114 NULL },
|
|
115
|
|
116 { ngx_string("ssl_session_ticket_key"),
|
|
117 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
118 ngx_conf_set_str_array_slot,
|
|
119 NGX_STREAM_SRV_CONF_OFFSET,
|
|
120 offsetof(ngx_stream_ssl_conf_t, session_ticket_keys),
|
|
121 NULL },
|
|
122
|
|
123 { ngx_string("ssl_session_timeout"),
|
|
124 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
|
|
125 ngx_conf_set_sec_slot,
|
|
126 NGX_STREAM_SRV_CONF_OFFSET,
|
|
127 offsetof(ngx_stream_ssl_conf_t, session_timeout),
|
|
128 NULL },
|
|
129
|
|
130 ngx_null_command
|
|
131 };
|
|
132
|
|
133
|
|
134 static ngx_stream_module_t ngx_stream_ssl_module_ctx = {
|
|
135 NULL, /* create main configuration */
|
|
136 NULL, /* init main configuration */
|
|
137
|
|
138 ngx_stream_ssl_create_conf, /* create server configuration */
|
|
139 ngx_stream_ssl_merge_conf /* merge server configuration */
|
|
140 };
|
|
141
|
|
142
|
|
143 ngx_module_t ngx_stream_ssl_module = {
|
|
144 NGX_MODULE_V1,
|
|
145 &ngx_stream_ssl_module_ctx, /* module context */
|
|
146 ngx_stream_ssl_commands, /* module directives */
|
|
147 NGX_STREAM_MODULE, /* module type */
|
|
148 NULL, /* init master */
|
|
149 NULL, /* init module */
|
|
150 NULL, /* init process */
|
|
151 NULL, /* init thread */
|
|
152 NULL, /* exit thread */
|
|
153 NULL, /* exit process */
|
|
154 NULL, /* exit master */
|
|
155 NGX_MODULE_V1_PADDING
|
|
156 };
|
|
157
|
|
158
|
|
159 static ngx_str_t ngx_stream_ssl_sess_id_ctx = ngx_string("STREAM");
|
|
160
|
|
161
|
|
162 static void *
|
|
163 ngx_stream_ssl_create_conf(ngx_conf_t *cf)
|
|
164 {
|
|
165 ngx_stream_ssl_conf_t *scf;
|
|
166
|
|
167 scf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_ssl_conf_t));
|
|
168 if (scf == NULL) {
|
|
169 return NULL;
|
|
170 }
|
|
171
|
|
172 /*
|
|
173 * set by ngx_pcalloc():
|
|
174 *
|
|
175 * scf->protocols = 0;
|
|
176 * scf->certificate = { 0, NULL };
|
|
177 * scf->certificate_key = { 0, NULL };
|
|
178 * scf->dhparam = { 0, NULL };
|
|
179 * scf->ecdh_curve = { 0, NULL };
|
|
180 * scf->ciphers = { 0, NULL };
|
|
181 * scf->shm_zone = NULL;
|
|
182 */
|
|
183
|
|
184 scf->handshake_timeout = NGX_CONF_UNSET_MSEC;
|
|
185 scf->passwords = NGX_CONF_UNSET_PTR;
|
|
186 scf->prefer_server_ciphers = NGX_CONF_UNSET;
|
|
187 scf->builtin_session_cache = NGX_CONF_UNSET;
|
|
188 scf->session_timeout = NGX_CONF_UNSET;
|
|
189 scf->session_tickets = NGX_CONF_UNSET;
|
|
190 scf->session_ticket_keys = NGX_CONF_UNSET_PTR;
|
|
191
|
|
192 return scf;
|
|
193 }
|
|
194
|
|
195
|
|
196 static char *
|
|
197 ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
198 {
|
|
199 ngx_stream_ssl_conf_t *prev = parent;
|
|
200 ngx_stream_ssl_conf_t *conf = child;
|
|
201
|
|
202 ngx_pool_cleanup_t *cln;
|
|
203
|
|
204 ngx_conf_merge_msec_value(conf->handshake_timeout,
|
|
205 prev->handshake_timeout, 60000);
|
|
206
|
|
207 ngx_conf_merge_value(conf->session_timeout,
|
|
208 prev->session_timeout, 300);
|
|
209
|
|
210 ngx_conf_merge_value(conf->prefer_server_ciphers,
|
|
211 prev->prefer_server_ciphers, 0);
|
|
212
|
|
213 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
|
|
214 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3|NGX_SSL_TLSv1
|
|
215 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2));
|
|
216
|
|
217 ngx_conf_merge_str_value(conf->certificate, prev->certificate, "");
|
|
218 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, "");
|
|
219
|
|
220 ngx_conf_merge_ptr_value(conf->passwords, prev->passwords, NULL);
|
|
221
|
|
222 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, "");
|
|
223
|
|
224 ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve,
|
|
225 NGX_DEFAULT_ECDH_CURVE);
|
|
226
|
|
227 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS);
|
|
228
|
|
229
|
|
230 conf->ssl.log = cf->log;
|
|
231
|
|
232 if (conf->certificate.len == 0) {
|
|
233 return NGX_CONF_OK;
|
|
234 }
|
|
235
|
|
236 if (conf->certificate_key.len == 0) {
|
|
237 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
238 "no \"ssl_certificate_key\" is defined "
|
|
239 "for certificate \"%V\"",
|
|
240 &conf->certificate);
|
|
241 return NGX_CONF_ERROR;
|
|
242 }
|
|
243
|
|
244 if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) {
|
|
245 return NGX_CONF_ERROR;
|
|
246 }
|
|
247
|
|
248 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
249 if (cln == NULL) {
|
|
250 return NGX_CONF_ERROR;
|
|
251 }
|
|
252
|
|
253 cln->handler = ngx_ssl_cleanup_ctx;
|
|
254 cln->data = &conf->ssl;
|
|
255
|
|
256 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate,
|
|
257 &conf->certificate_key, conf->passwords)
|
|
258 != NGX_OK)
|
|
259 {
|
|
260 return NGX_CONF_ERROR;
|
|
261 }
|
|
262
|
|
263 if (SSL_CTX_set_cipher_list(conf->ssl.ctx,
|
|
264 (const char *) conf->ciphers.data)
|
|
265 == 0)
|
|
266 {
|
|
267 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
|
|
268 "SSL_CTX_set_cipher_list(\"%V\") failed",
|
|
269 &conf->ciphers);
|
|
270 return NGX_CONF_ERROR;
|
|
271 }
|
|
272
|
|
273 if (conf->prefer_server_ciphers) {
|
|
274 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
|
275 }
|
|
276
|
|
277 SSL_CTX_set_tmp_rsa_callback(conf->ssl.ctx, ngx_ssl_rsa512_key_callback);
|
|
278
|
|
279 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) {
|
|
280 return NGX_CONF_ERROR;
|
|
281 }
|
|
282
|
|
283 if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) {
|
|
284 return NGX_CONF_ERROR;
|
|
285 }
|
|
286
|
|
287 ngx_conf_merge_value(conf->builtin_session_cache,
|
|
288 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE);
|
|
289
|
|
290 if (conf->shm_zone == NULL) {
|
|
291 conf->shm_zone = prev->shm_zone;
|
|
292 }
|
|
293
|
|
294 if (ngx_ssl_session_cache(&conf->ssl, &ngx_stream_ssl_sess_id_ctx,
|
|
295 conf->builtin_session_cache,
|
|
296 conf->shm_zone, conf->session_timeout)
|
|
297 != NGX_OK)
|
|
298 {
|
|
299 return NGX_CONF_ERROR;
|
|
300 }
|
|
301
|
|
302 ngx_conf_merge_value(conf->session_tickets,
|
|
303 prev->session_tickets, 1);
|
|
304
|
|
305 #ifdef SSL_OP_NO_TICKET
|
|
306 if (!conf->session_tickets) {
|
|
307 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET);
|
|
308 }
|
|
309 #endif
|
|
310
|
|
311 ngx_conf_merge_ptr_value(conf->session_ticket_keys,
|
|
312 prev->session_ticket_keys, NULL);
|
|
313
|
|
314 if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys)
|
|
315 != NGX_OK)
|
|
316 {
|
|
317 return NGX_CONF_ERROR;
|
|
318 }
|
|
319
|
|
320 return NGX_CONF_OK;
|
|
321 }
|
|
322
|
|
323
|
|
324 static char *
|
|
325 ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
326 {
|
|
327 ngx_stream_ssl_conf_t *scf = conf;
|
|
328
|
|
329 ngx_str_t *value;
|
|
330
|
|
331 if (scf->passwords != NGX_CONF_UNSET_PTR) {
|
|
332 return "is duplicate";
|
|
333 }
|
|
334
|
|
335 value = cf->args->elts;
|
|
336
|
|
337 scf->passwords = ngx_ssl_read_password_file(cf, &value[1]);
|
|
338
|
|
339 if (scf->passwords == NULL) {
|
|
340 return NGX_CONF_ERROR;
|
|
341 }
|
|
342
|
|
343 return NGX_CONF_OK;
|
|
344 }
|
|
345
|
|
346
|
|
347 static char *
|
|
348 ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
349 {
|
|
350 ngx_stream_ssl_conf_t *scf = conf;
|
|
351
|
|
352 size_t len;
|
|
353 ngx_str_t *value, name, size;
|
|
354 ngx_int_t n;
|
|
355 ngx_uint_t i, j;
|
|
356
|
|
357 value = cf->args->elts;
|
|
358
|
|
359 for (i = 1; i < cf->args->nelts; i++) {
|
|
360
|
|
361 if (ngx_strcmp(value[i].data, "off") == 0) {
|
|
362 scf->builtin_session_cache = NGX_SSL_NO_SCACHE;
|
|
363 continue;
|
|
364 }
|
|
365
|
|
366 if (ngx_strcmp(value[i].data, "none") == 0) {
|
|
367 scf->builtin_session_cache = NGX_SSL_NONE_SCACHE;
|
|
368 continue;
|
|
369 }
|
|
370
|
|
371 if (ngx_strcmp(value[i].data, "builtin") == 0) {
|
|
372 scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE;
|
|
373 continue;
|
|
374 }
|
|
375
|
|
376 if (value[i].len > sizeof("builtin:") - 1
|
|
377 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1)
|
|
378 == 0)
|
|
379 {
|
|
380 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1,
|
|
381 value[i].len - (sizeof("builtin:") - 1));
|
|
382
|
|
383 if (n == NGX_ERROR) {
|
|
384 goto invalid;
|
|
385 }
|
|
386
|
|
387 scf->builtin_session_cache = n;
|
|
388
|
|
389 continue;
|
|
390 }
|
|
391
|
|
392 if (value[i].len > sizeof("shared:") - 1
|
|
393 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1)
|
|
394 == 0)
|
|
395 {
|
|
396 len = 0;
|
|
397
|
|
398 for (j = sizeof("shared:") - 1; j < value[i].len; j++) {
|
|
399 if (value[i].data[j] == ':') {
|
|
400 break;
|
|
401 }
|
|
402
|
|
403 len++;
|
|
404 }
|
|
405
|
|
406 if (len == 0) {
|
|
407 goto invalid;
|
|
408 }
|
|
409
|
|
410 name.len = len;
|
|
411 name.data = value[i].data + sizeof("shared:") - 1;
|
|
412
|
|
413 size.len = value[i].len - j - 1;
|
|
414 size.data = name.data + len + 1;
|
|
415
|
|
416 n = ngx_parse_size(&size);
|
|
417
|
|
418 if (n == NGX_ERROR) {
|
|
419 goto invalid;
|
|
420 }
|
|
421
|
|
422 if (n < (ngx_int_t) (8 * ngx_pagesize)) {
|
|
423 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
424 "session cache \"%V\" is too small",
|
|
425 &value[i]);
|
|
426
|
|
427 return NGX_CONF_ERROR;
|
|
428 }
|
|
429
|
|
430 scf->shm_zone = ngx_shared_memory_add(cf, &name, n,
|
|
431 &ngx_stream_ssl_module);
|
|
432 if (scf->shm_zone == NULL) {
|
|
433 return NGX_CONF_ERROR;
|
|
434 }
|
|
435
|
|
436 scf->shm_zone->init = ngx_ssl_session_cache_init;
|
|
437
|
|
438 continue;
|
|
439 }
|
|
440
|
|
441 goto invalid;
|
|
442 }
|
|
443
|
|
444 if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) {
|
|
445 scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE;
|
|
446 }
|
|
447
|
|
448 return NGX_CONF_OK;
|
|
449
|
|
450 invalid:
|
|
451
|
|
452 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
453 "invalid session cache \"%V\"", &value[i]);
|
|
454
|
|
455 return NGX_CONF_ERROR;
|
|
456 }
|