Mercurial > hg > nginx
annotate src/stream/ngx_stream_proxy_module.c @ 6157:b2899e7d0ef8
Disabled SSLv3 by default (ticket #653).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 25 May 2015 17:58:20 +0300 |
parents | f1f222db290b |
children | 68c106e6fa0a |
rev | line source |
---|---|
6115 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
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 typedef void (*ngx_stream_proxy_handler_pt)(ngx_stream_session_t *s); | |
14 | |
15 | |
16 typedef struct { | |
17 ngx_msec_t connect_timeout; | |
18 ngx_msec_t timeout; | |
19 ngx_msec_t next_upstream_timeout; | |
20 size_t downstream_buf_size; | |
21 size_t upstream_buf_size; | |
22 ngx_uint_t next_upstream_tries; | |
23 ngx_flag_t next_upstream; | |
24 | |
25 #if (NGX_STREAM_SSL) | |
26 ngx_flag_t ssl_enable; | |
27 ngx_flag_t ssl_session_reuse; | |
28 ngx_uint_t ssl_protocols; | |
29 ngx_str_t ssl_ciphers; | |
30 ngx_str_t ssl_name; | |
31 ngx_flag_t ssl_server_name; | |
32 | |
33 ngx_flag_t ssl_verify; | |
34 ngx_uint_t ssl_verify_depth; | |
35 ngx_str_t ssl_trusted_certificate; | |
36 ngx_str_t ssl_crl; | |
37 ngx_str_t ssl_certificate; | |
38 ngx_str_t ssl_certificate_key; | |
39 ngx_array_t *ssl_passwords; | |
40 | |
41 ngx_ssl_t *ssl; | |
42 #endif | |
43 | |
44 ngx_stream_upstream_srv_conf_t *upstream; | |
45 } ngx_stream_proxy_srv_conf_t; | |
46 | |
47 | |
48 static void ngx_stream_proxy_handler(ngx_stream_session_t *s); | |
49 static void ngx_stream_proxy_connect(ngx_stream_session_t *s); | |
50 static void ngx_stream_proxy_init_upstream(ngx_stream_session_t *s); | |
51 static void ngx_stream_proxy_upstream_handler(ngx_event_t *ev); | |
52 static void ngx_stream_proxy_downstream_handler(ngx_event_t *ev); | |
53 static void ngx_stream_proxy_connect_handler(ngx_event_t *ev); | |
54 static ngx_int_t ngx_stream_proxy_test_connect(ngx_connection_t *c); | |
55 static ngx_int_t ngx_stream_proxy_process(ngx_stream_session_t *s, | |
56 ngx_uint_t from_upstream, ngx_uint_t do_write); | |
57 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s); | |
58 static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc); | |
59 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, | |
60 size_t len); | |
61 | |
62 static void *ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf); | |
63 static char *ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
64 void *child); | |
65 static char *ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
66 void *conf); | |
67 | |
68 #if (NGX_STREAM_SSL) | |
69 | |
70 static char *ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, | |
71 ngx_command_t *cmd, void *conf); | |
72 static void ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s); | |
73 static void ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc); | |
74 static ngx_int_t ngx_stream_proxy_ssl_name(ngx_stream_session_t *s); | |
75 static ngx_int_t ngx_stream_proxy_set_ssl(ngx_conf_t *cf, | |
76 ngx_stream_proxy_srv_conf_t *pscf); | |
77 | |
78 | |
79 static ngx_conf_bitmask_t ngx_stream_proxy_ssl_protocols[] = { | |
80 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
81 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
82 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
83 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
84 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
85 { ngx_null_string, 0 } | |
86 }; | |
87 | |
88 #endif | |
89 | |
90 | |
91 static ngx_command_t ngx_stream_proxy_commands[] = { | |
92 | |
93 { ngx_string("proxy_pass"), | |
94 NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
95 ngx_stream_proxy_pass, | |
96 NGX_STREAM_SRV_CONF_OFFSET, | |
97 0, | |
98 NULL }, | |
99 | |
100 { ngx_string("proxy_connect_timeout"), | |
101 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
102 ngx_conf_set_msec_slot, | |
103 NGX_STREAM_SRV_CONF_OFFSET, | |
104 offsetof(ngx_stream_proxy_srv_conf_t, connect_timeout), | |
105 NULL }, | |
106 | |
107 { ngx_string("proxy_timeout"), | |
108 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
109 ngx_conf_set_msec_slot, | |
110 NGX_STREAM_SRV_CONF_OFFSET, | |
111 offsetof(ngx_stream_proxy_srv_conf_t, timeout), | |
112 NULL }, | |
113 | |
114 { ngx_string("proxy_downstream_buffer"), | |
115 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
116 ngx_conf_set_size_slot, | |
117 NGX_STREAM_SRV_CONF_OFFSET, | |
118 offsetof(ngx_stream_proxy_srv_conf_t, downstream_buf_size), | |
119 NULL }, | |
120 | |
121 { ngx_string("proxy_upstream_buffer"), | |
122 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
123 ngx_conf_set_size_slot, | |
124 NGX_STREAM_SRV_CONF_OFFSET, | |
125 offsetof(ngx_stream_proxy_srv_conf_t, upstream_buf_size), | |
126 NULL }, | |
127 | |
128 { ngx_string("proxy_next_upstream"), | |
129 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
130 ngx_conf_set_flag_slot, | |
131 NGX_STREAM_SRV_CONF_OFFSET, | |
132 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream), | |
133 NULL }, | |
134 | |
135 { ngx_string("proxy_next_upstream_tries"), | |
136 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
137 ngx_conf_set_num_slot, | |
138 NGX_STREAM_SRV_CONF_OFFSET, | |
139 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_tries), | |
140 NULL }, | |
141 | |
142 { ngx_string("proxy_next_upstream_timeout"), | |
143 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
144 ngx_conf_set_msec_slot, | |
145 NGX_STREAM_SRV_CONF_OFFSET, | |
146 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_timeout), | |
147 NULL }, | |
148 | |
149 #if (NGX_STREAM_SSL) | |
150 | |
151 { ngx_string("proxy_ssl"), | |
152 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
153 ngx_conf_set_flag_slot, | |
154 NGX_STREAM_SRV_CONF_OFFSET, | |
155 offsetof(ngx_stream_proxy_srv_conf_t, ssl_enable), | |
156 NULL }, | |
157 | |
158 { ngx_string("proxy_ssl_session_reuse"), | |
159 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
160 ngx_conf_set_flag_slot, | |
161 NGX_STREAM_SRV_CONF_OFFSET, | |
162 offsetof(ngx_stream_proxy_srv_conf_t, ssl_session_reuse), | |
163 NULL }, | |
164 | |
165 { ngx_string("proxy_ssl_protocols"), | |
166 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
167 ngx_conf_set_bitmask_slot, | |
168 NGX_STREAM_SRV_CONF_OFFSET, | |
169 offsetof(ngx_stream_proxy_srv_conf_t, ssl_protocols), | |
170 &ngx_stream_proxy_ssl_protocols }, | |
171 | |
172 { ngx_string("proxy_ssl_ciphers"), | |
173 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
174 ngx_conf_set_str_slot, | |
175 NGX_STREAM_SRV_CONF_OFFSET, | |
176 offsetof(ngx_stream_proxy_srv_conf_t, ssl_ciphers), | |
177 NULL }, | |
178 | |
179 { ngx_string("proxy_ssl_name"), | |
180 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
181 ngx_conf_set_str_slot, | |
182 NGX_STREAM_SRV_CONF_OFFSET, | |
183 offsetof(ngx_stream_proxy_srv_conf_t, ssl_name), | |
184 NULL }, | |
185 | |
186 { ngx_string("proxy_ssl_server_name"), | |
187 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
188 ngx_conf_set_flag_slot, | |
189 NGX_STREAM_SRV_CONF_OFFSET, | |
190 offsetof(ngx_stream_proxy_srv_conf_t, ssl_server_name), | |
191 NULL }, | |
192 | |
193 { ngx_string("proxy_ssl_verify"), | |
194 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
195 ngx_conf_set_flag_slot, | |
196 NGX_STREAM_SRV_CONF_OFFSET, | |
197 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify), | |
198 NULL }, | |
199 | |
200 { ngx_string("proxy_ssl_verify_depth"), | |
201 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
202 ngx_conf_set_num_slot, | |
203 NGX_STREAM_SRV_CONF_OFFSET, | |
204 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify_depth), | |
205 NULL }, | |
206 | |
207 { ngx_string("proxy_ssl_trusted_certificate"), | |
208 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
209 ngx_conf_set_str_slot, | |
210 NGX_STREAM_SRV_CONF_OFFSET, | |
211 offsetof(ngx_stream_proxy_srv_conf_t, ssl_trusted_certificate), | |
212 NULL }, | |
213 | |
214 { ngx_string("proxy_ssl_crl"), | |
215 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
216 ngx_conf_set_str_slot, | |
217 NGX_STREAM_SRV_CONF_OFFSET, | |
218 offsetof(ngx_stream_proxy_srv_conf_t, ssl_crl), | |
219 NULL }, | |
220 | |
221 { ngx_string("proxy_ssl_certificate"), | |
222 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
223 ngx_conf_set_str_slot, | |
224 NGX_STREAM_SRV_CONF_OFFSET, | |
225 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate), | |
226 NULL }, | |
227 | |
228 { ngx_string("proxy_ssl_certificate_key"), | |
229 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
230 ngx_conf_set_str_slot, | |
231 NGX_STREAM_SRV_CONF_OFFSET, | |
232 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate_key), | |
233 NULL }, | |
234 | |
235 { ngx_string("proxy_ssl_password_file"), | |
236 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
237 ngx_stream_proxy_ssl_password_file, | |
238 NGX_STREAM_SRV_CONF_OFFSET, | |
239 0, | |
240 NULL }, | |
241 | |
242 #endif | |
243 | |
244 ngx_null_command | |
245 }; | |
246 | |
247 | |
248 static ngx_stream_module_t ngx_stream_proxy_module_ctx = { | |
249 NULL, /* create main configuration */ | |
250 NULL, /* init main configuration */ | |
251 | |
252 ngx_stream_proxy_create_srv_conf, /* create server configuration */ | |
253 ngx_stream_proxy_merge_srv_conf /* merge server configuration */ | |
254 }; | |
255 | |
256 | |
257 ngx_module_t ngx_stream_proxy_module = { | |
258 NGX_MODULE_V1, | |
259 &ngx_stream_proxy_module_ctx, /* module context */ | |
260 ngx_stream_proxy_commands, /* module directives */ | |
261 NGX_STREAM_MODULE, /* module type */ | |
262 NULL, /* init master */ | |
263 NULL, /* init module */ | |
264 NULL, /* init process */ | |
265 NULL, /* init thread */ | |
266 NULL, /* exit thread */ | |
267 NULL, /* exit process */ | |
268 NULL, /* exit master */ | |
269 NGX_MODULE_V1_PADDING | |
270 }; | |
271 | |
272 | |
273 static void | |
274 ngx_stream_proxy_handler(ngx_stream_session_t *s) | |
275 { | |
276 u_char *p; | |
277 ngx_connection_t *c; | |
278 ngx_stream_upstream_t *u; | |
279 ngx_stream_proxy_srv_conf_t *pscf; | |
280 ngx_stream_upstream_srv_conf_t *uscf; | |
281 | |
282 c = s->connection; | |
283 | |
284 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
285 | |
286 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
287 "proxy connection handler"); | |
288 | |
289 u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t)); | |
290 if (u == NULL) { | |
291 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
292 return; | |
293 } | |
294 | |
295 s->upstream = u; | |
296 | |
297 s->log_handler = ngx_stream_proxy_log_error; | |
298 | |
299 u->peer.log = c->log; | |
300 u->peer.log_error = NGX_ERROR_ERR; | |
301 | |
302 uscf = pscf->upstream; | |
303 | |
304 if (uscf->peer.init(s, uscf) != NGX_OK) { | |
305 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
306 return; | |
307 } | |
308 | |
309 u->peer.start_time = ngx_current_msec; | |
310 | |
311 if (pscf->next_upstream_tries | |
312 && u->peer.tries > pscf->next_upstream_tries) | |
313 { | |
314 u->peer.tries = pscf->next_upstream_tries; | |
315 } | |
316 | |
317 p = ngx_pnalloc(c->pool, pscf->downstream_buf_size); | |
318 if (p == NULL) { | |
319 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
320 return; | |
321 } | |
322 | |
323 u->downstream_buf.start = p; | |
324 u->downstream_buf.end = p + pscf->downstream_buf_size; | |
325 u->downstream_buf.pos = p; | |
326 u->downstream_buf.last = p; | |
327 | |
328 c->write->handler = ngx_stream_proxy_downstream_handler; | |
329 c->read->handler = ngx_stream_proxy_downstream_handler; | |
330 | |
331 if (ngx_stream_proxy_process(s, 0, 0) != NGX_OK) { | |
332 return; | |
333 } | |
334 | |
335 ngx_stream_proxy_connect(s); | |
336 } | |
337 | |
338 | |
339 static void | |
340 ngx_stream_proxy_connect(ngx_stream_session_t *s) | |
341 { | |
342 ngx_int_t rc; | |
343 ngx_connection_t *c, *pc; | |
344 ngx_stream_upstream_t *u; | |
345 ngx_stream_proxy_srv_conf_t *pscf; | |
346 | |
347 c = s->connection; | |
348 | |
349 c->log->action = "connecting to upstream"; | |
350 | |
351 u = s->upstream; | |
352 | |
353 rc = ngx_event_connect_peer(&u->peer); | |
354 | |
355 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc); | |
356 | |
357 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
358 | |
359 if (rc == NGX_ERROR) { | |
360 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
361 return; | |
362 } | |
363 | |
364 if (rc == NGX_BUSY) { | |
365 ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams"); | |
366 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
367 return; | |
368 } | |
369 | |
370 if (rc == NGX_DECLINED) { | |
371 ngx_stream_proxy_next_upstream(s); | |
372 return; | |
373 } | |
374 | |
375 /* rc == NGX_OK || rc == NGX_AGAIN || rc == NGX_DONE */ | |
376 | |
377 pc = u->peer.connection; | |
378 | |
379 pc->data = s; | |
380 pc->log = c->log; | |
381 pc->pool = c->pool; | |
382 pc->read->log = c->log; | |
383 pc->write->log = c->log; | |
384 | |
385 if (rc != NGX_AGAIN) { | |
386 ngx_stream_proxy_init_upstream(s); | |
387 return; | |
388 } | |
389 | |
390 pc->read->handler = ngx_stream_proxy_connect_handler; | |
391 pc->write->handler = ngx_stream_proxy_connect_handler; | |
392 | |
393 ngx_add_timer(pc->write, pscf->connect_timeout); | |
394 } | |
395 | |
396 | |
397 static void | |
398 ngx_stream_proxy_init_upstream(ngx_stream_session_t *s) | |
399 { | |
400 u_char *p; | |
401 ngx_connection_t *c, *pc; | |
402 ngx_log_handler_pt handler; | |
403 ngx_stream_upstream_t *u; | |
404 ngx_stream_proxy_srv_conf_t *pscf; | |
405 | |
406 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
407 | |
408 u = s->upstream; | |
409 | |
410 pc = u->peer.connection; | |
411 | |
412 #if (NGX_STREAM_SSL) | |
413 if (pscf->ssl && pc->ssl == NULL) { | |
414 ngx_stream_proxy_ssl_init_connection(s); | |
415 return; | |
416 } | |
417 #endif | |
418 | |
419 c = s->connection; | |
420 | |
421 if (c->log->log_level >= NGX_LOG_INFO) { | |
422 ngx_str_t s; | |
423 u_char addr[NGX_SOCKADDR_STRLEN]; | |
424 | |
425 s.len = NGX_SOCKADDR_STRLEN; | |
426 s.data = addr; | |
427 | |
428 if (ngx_connection_local_sockaddr(pc, &s, 1) == NGX_OK) { | |
429 handler = c->log->handler; | |
430 c->log->handler = NULL; | |
431 | |
432 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxy %V connected to %V", | |
433 &s, u->peer.name); | |
434 | |
435 c->log->handler = handler; | |
436 } | |
437 } | |
438 | |
439 c->log->action = "proxying connection"; | |
440 | |
441 p = ngx_pnalloc(c->pool, pscf->upstream_buf_size); | |
442 if (p == NULL) { | |
443 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
444 return; | |
445 } | |
446 | |
447 u->upstream_buf.start = p; | |
448 u->upstream_buf.end = p + pscf->upstream_buf_size; | |
449 u->upstream_buf.pos = p; | |
450 u->upstream_buf.last = p; | |
451 | |
452 pc->read->handler = ngx_stream_proxy_upstream_handler; | |
453 pc->write->handler = ngx_stream_proxy_upstream_handler; | |
454 | |
455 if (ngx_stream_proxy_process(s, 1, 0) != NGX_OK) { | |
456 return; | |
457 } | |
458 | |
459 ngx_stream_proxy_process(s, 0, 1); | |
460 } | |
461 | |
462 | |
463 #if (NGX_STREAM_SSL) | |
464 | |
465 static char * | |
466 ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, | |
467 void *conf) | |
468 { | |
469 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
470 | |
471 ngx_str_t *value; | |
472 | |
473 if (pscf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
474 return "is duplicate"; | |
475 } | |
476 | |
477 value = cf->args->elts; | |
478 | |
479 pscf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
480 | |
481 if (pscf->ssl_passwords == NULL) { | |
482 return NGX_CONF_ERROR; | |
483 } | |
484 | |
485 return NGX_CONF_OK; | |
486 } | |
487 | |
488 | |
489 static void | |
490 ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s) | |
491 { | |
492 ngx_int_t rc; | |
493 ngx_connection_t *pc; | |
494 ngx_stream_upstream_t *u; | |
495 ngx_stream_proxy_srv_conf_t *pscf; | |
496 | |
497 u = s->upstream; | |
498 | |
499 pc = u->peer.connection; | |
500 | |
501 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
502 | |
503 if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
504 != NGX_OK) | |
505 { | |
506 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
507 return; | |
508 } | |
509 | |
510 if (pscf->ssl_server_name || pscf->ssl_verify) { | |
511 if (ngx_stream_proxy_ssl_name(s) != NGX_OK) { | |
512 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
513 return; | |
514 } | |
515 } | |
516 | |
517 if (pscf->ssl_session_reuse) { | |
518 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { | |
519 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
520 return; | |
521 } | |
522 } | |
523 | |
524 s->connection->log->action = "SSL handshaking to upstream"; | |
525 | |
526 rc = ngx_ssl_handshake(pc); | |
527 | |
528 if (rc == NGX_AGAIN) { | |
529 | |
530 if (!pc->write->timer_set) { | |
531 ngx_add_timer(pc->write, pscf->connect_timeout); | |
532 } | |
533 | |
534 pc->ssl->handler = ngx_stream_proxy_ssl_handshake; | |
535 return; | |
536 } | |
537 | |
538 ngx_stream_proxy_ssl_handshake(pc); | |
539 } | |
540 | |
541 | |
542 static void | |
543 ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc) | |
544 { | |
545 long rc; | |
546 ngx_stream_session_t *s; | |
547 ngx_stream_upstream_t *u; | |
548 ngx_stream_proxy_srv_conf_t *pscf; | |
549 | |
550 s = pc->data; | |
551 | |
552 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
553 | |
554 if (pc->ssl->handshaked) { | |
555 | |
556 if (pscf->ssl_verify) { | |
557 rc = SSL_get_verify_result(pc->ssl->connection); | |
558 | |
559 if (rc != X509_V_OK) { | |
560 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
561 "upstream SSL certificate verify error: (%l:%s)", | |
562 rc, X509_verify_cert_error_string(rc)); | |
563 goto failed; | |
564 } | |
565 | |
566 u = s->upstream; | |
567 | |
568 if (ngx_ssl_check_host(pc, &u->ssl_name) != NGX_OK) { | |
569 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
570 "upstream SSL certificate does not match \"%V\"", | |
571 &u->ssl_name); | |
572 goto failed; | |
573 } | |
574 } | |
575 | |
576 if (pscf->ssl_session_reuse) { | |
577 u = s->upstream; | |
578 u->peer.save_session(&u->peer, u->peer.data); | |
579 } | |
580 | |
581 ngx_stream_proxy_init_upstream(s); | |
582 | |
583 return; | |
584 } | |
585 | |
586 failed: | |
587 | |
588 ngx_stream_proxy_next_upstream(s); | |
589 } | |
590 | |
591 | |
592 static ngx_int_t | |
593 ngx_stream_proxy_ssl_name(ngx_stream_session_t *s) | |
594 { | |
595 u_char *p, *last; | |
596 ngx_str_t name; | |
597 ngx_stream_upstream_t *u; | |
598 ngx_stream_proxy_srv_conf_t *pscf; | |
599 | |
600 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
601 | |
602 u = s->upstream; | |
603 | |
604 name = pscf->ssl_name; | |
605 | |
606 if (name.len == 0) { | |
607 name = pscf->upstream->host; | |
608 } | |
609 | |
610 if (name.len == 0) { | |
611 goto done; | |
612 } | |
613 | |
614 /* | |
615 * ssl name here may contain port, strip it for compatibility | |
616 * with the http module | |
617 */ | |
618 | |
619 p = name.data; | |
620 last = name.data + name.len; | |
621 | |
622 if (*p == '[') { | |
623 p = ngx_strlchr(p, last, ']'); | |
624 | |
625 if (p == NULL) { | |
626 p = name.data; | |
627 } | |
628 } | |
629 | |
630 p = ngx_strlchr(p, last, ':'); | |
631 | |
632 if (p != NULL) { | |
633 name.len = p - name.data; | |
634 } | |
635 | |
636 if (!pscf->ssl_server_name) { | |
637 goto done; | |
638 } | |
639 | |
640 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME | |
641 | |
642 /* as per RFC 6066, literal IPv4 and IPv6 addresses are not permitted */ | |
643 | |
644 if (name.len == 0 || *name.data == '[') { | |
645 goto done; | |
646 } | |
647 | |
648 if (ngx_inet_addr(name.data, name.len) != INADDR_NONE) { | |
649 goto done; | |
650 } | |
651 | |
652 /* | |
653 * SSL_set_tlsext_host_name() needs a null-terminated string, | |
654 * hence we explicitly null-terminate name here | |
655 */ | |
656 | |
657 p = ngx_pnalloc(s->connection->pool, name.len + 1); | |
658 if (p == NULL) { | |
659 return NGX_ERROR; | |
660 } | |
661 | |
662 (void) ngx_cpystrn(p, name.data, name.len + 1); | |
663 | |
664 name.data = p; | |
665 | |
666 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
667 "upstream SSL server name: \"%s\"", name.data); | |
668 | |
669 if (SSL_set_tlsext_host_name(u->peer.connection->ssl->connection, name.data) | |
670 == 0) | |
671 { | |
672 ngx_ssl_error(NGX_LOG_ERR, s->connection->log, 0, | |
673 "SSL_set_tlsext_host_name(\"%s\") failed", name.data); | |
674 return NGX_ERROR; | |
675 } | |
676 | |
677 #endif | |
678 | |
679 done: | |
680 | |
681 u->ssl_name = name; | |
682 | |
683 return NGX_OK; | |
684 } | |
685 | |
686 #endif | |
687 | |
688 | |
689 static void | |
690 ngx_stream_proxy_downstream_handler(ngx_event_t *ev) | |
691 { | |
692 ngx_connection_t *c; | |
693 ngx_stream_session_t *s; | |
694 ngx_stream_upstream_t *u; | |
695 | |
696 c = ev->data; | |
697 s = c->data; | |
698 | |
699 if (ev->timedout) { | |
700 ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out"); | |
701 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
702 return; | |
703 } | |
704 | |
705 u = s->upstream; | |
706 | |
707 if (!ev->write) { | |
708 ngx_stream_proxy_process(s, 0, 0); | |
709 | |
710 } else if (u->upstream_buf.start) { | |
711 ngx_stream_proxy_process(s, 1, 1); | |
712 } | |
713 } | |
714 | |
715 | |
716 static void | |
717 ngx_stream_proxy_upstream_handler(ngx_event_t *ev) | |
718 { | |
719 ngx_connection_t *c; | |
720 ngx_stream_session_t *s; | |
721 ngx_stream_upstream_t *u; | |
722 | |
723 c = ev->data; | |
724 s = c->data; | |
725 | |
726 u = s->upstream; | |
727 | |
728 if (ev->write) { | |
729 ngx_stream_proxy_process(s, 0, 1); | |
730 | |
731 } else if (u->upstream_buf.start) { | |
732 ngx_stream_proxy_process(s, 1, 0); | |
733 } | |
734 } | |
735 | |
736 | |
737 static void | |
738 ngx_stream_proxy_connect_handler(ngx_event_t *ev) | |
739 { | |
740 ngx_connection_t *c; | |
741 ngx_stream_session_t *s; | |
742 | |
743 c = ev->data; | |
744 s = c->data; | |
745 | |
746 if (ev->timedout) { | |
747 ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "upstream timed out"); | |
748 ngx_stream_proxy_next_upstream(s); | |
749 return; | |
750 } | |
751 | |
752 ngx_del_timer(c->write); | |
753 | |
754 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
755 "stream proxy connect upstream"); | |
756 | |
757 if (ngx_stream_proxy_test_connect(c) != NGX_OK) { | |
758 ngx_stream_proxy_next_upstream(s); | |
759 return; | |
760 } | |
761 | |
762 ngx_stream_proxy_init_upstream(s); | |
763 } | |
764 | |
765 | |
766 static ngx_int_t | |
767 ngx_stream_proxy_test_connect(ngx_connection_t *c) | |
768 { | |
769 int err; | |
770 socklen_t len; | |
771 | |
772 #if (NGX_HAVE_KQUEUE) | |
773 | |
774 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
775 err = c->write->kq_errno ? c->write->kq_errno : c->read->kq_errno; | |
776 | |
777 if (err) { | |
778 (void) ngx_connection_error(c, err, | |
779 "kevent() reported that connect() failed"); | |
780 return NGX_ERROR; | |
781 } | |
782 | |
783 } else | |
784 #endif | |
785 { | |
786 err = 0; | |
787 len = sizeof(int); | |
788 | |
789 /* | |
790 * BSDs and Linux return 0 and set a pending error in err | |
791 * Solaris returns -1 and sets errno | |
792 */ | |
793 | |
794 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
795 == -1) | |
796 { | |
797 err = ngx_socket_errno; | |
798 } | |
799 | |
800 if (err) { | |
801 (void) ngx_connection_error(c, err, "connect() failed"); | |
802 return NGX_ERROR; | |
803 } | |
804 } | |
805 | |
806 return NGX_OK; | |
807 } | |
808 | |
809 | |
810 static ngx_int_t | |
811 ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream, | |
812 ngx_uint_t do_write) | |
813 { | |
814 size_t size; | |
815 ssize_t n; | |
816 ngx_buf_t *b; | |
6124
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Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
817 ngx_uint_t flags; |
6115 | 818 ngx_connection_t *c, *pc, *src, *dst; |
819 ngx_log_handler_pt handler; | |
820 ngx_stream_upstream_t *u; | |
821 ngx_stream_proxy_srv_conf_t *pscf; | |
822 | |
823 u = s->upstream; | |
824 | |
825 c = s->connection; | |
826 pc = u->upstream_buf.start ? u->peer.connection : NULL; | |
827 | |
828 if (from_upstream) { | |
829 src = pc; | |
830 dst = c; | |
831 b = &u->upstream_buf; | |
832 | |
833 } else { | |
834 src = c; | |
835 dst = pc; | |
836 b = &u->downstream_buf; | |
837 } | |
838 | |
839 for ( ;; ) { | |
840 | |
841 if (do_write) { | |
842 | |
843 size = b->last - b->pos; | |
844 | |
845 if (size && dst && dst->write->ready) { | |
846 | |
847 n = dst->send(dst, b->pos, size); | |
848 | |
849 if (n == NGX_ERROR) { | |
850 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
851 return NGX_ERROR; | |
852 } | |
853 | |
854 if (n > 0) { | |
855 b->pos += n; | |
856 | |
857 if (b->pos == b->last) { | |
858 b->pos = b->start; | |
859 b->last = b->start; | |
860 } | |
861 } | |
862 } | |
863 } | |
864 | |
865 size = b->end - b->last; | |
866 | |
867 if (size && src->read->ready) { | |
868 | |
869 n = src->recv(src, b->last, size); | |
870 | |
871 if (n == NGX_AGAIN || n == 0) { | |
872 break; | |
873 } | |
874 | |
875 if (n > 0) { | |
876 if (from_upstream) { | |
877 u->received += n; | |
878 | |
879 } else { | |
880 s->received += n; | |
881 } | |
882 | |
883 do_write = 1; | |
884 b->last += n; | |
885 continue; | |
886 } | |
887 | |
888 if (n == NGX_ERROR) { | |
889 src->read->eof = 1; | |
890 } | |
891 } | |
892 | |
893 break; | |
894 } | |
895 | |
896 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
897 | |
898 if (src->read->eof && (b->pos == b->last || (dst && dst->read->eof))) { | |
899 handler = c->log->handler; | |
900 c->log->handler = NULL; | |
901 | |
902 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
903 "%s disconnected" | |
904 ", bytes from/to client:%O/%O" | |
905 ", bytes from/to upstream:%O/%O", | |
906 from_upstream ? "upstream" : "client", | |
907 s->received, c->sent, u->received, pc ? pc->sent : 0); | |
908 | |
909 c->log->handler = handler; | |
910 | |
911 ngx_stream_proxy_finalize(s, NGX_OK); | |
912 return NGX_DONE; | |
913 } | |
914 | |
6124
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Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
915 flags = src->read->eof ? NGX_CLOSE_EVENT : 0; |
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
916 |
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
917 if (ngx_handle_read_event(src->read, flags) != NGX_OK) { |
6115 | 918 ngx_stream_proxy_finalize(s, NGX_ERROR); |
919 return NGX_ERROR; | |
920 } | |
921 | |
922 if (dst) { | |
923 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { | |
924 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
925 return NGX_ERROR; | |
926 } | |
927 | |
928 ngx_add_timer(c->read, pscf->timeout); | |
929 } | |
930 | |
931 return NGX_OK; | |
932 } | |
933 | |
934 | |
935 static void | |
936 ngx_stream_proxy_next_upstream(ngx_stream_session_t *s) | |
937 { | |
938 ngx_msec_t timeout; | |
939 ngx_connection_t *pc; | |
940 ngx_stream_upstream_t *u; | |
941 ngx_stream_proxy_srv_conf_t *pscf; | |
942 | |
943 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
944 "stream proxy next upstream"); | |
945 | |
946 u = s->upstream; | |
947 | |
948 if (u->peer.sockaddr) { | |
949 u->peer.free(&u->peer, u->peer.data, NGX_PEER_FAILED); | |
950 u->peer.sockaddr = NULL; | |
951 } | |
952 | |
953 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
954 | |
955 timeout = pscf->next_upstream_timeout; | |
956 | |
957 if (u->peer.tries == 0 | |
958 || !pscf->next_upstream | |
959 || (timeout && ngx_current_msec - u->peer.start_time >= timeout)) | |
960 { | |
961 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
962 return; | |
963 } | |
964 | |
965 pc = u->peer.connection; | |
966 | |
967 if (pc) { | |
968 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
969 "close proxy upstream connection: %d", pc->fd); | |
970 | |
971 #if (NGX_STREAM_SSL) | |
972 if (pc->ssl) { | |
973 pc->ssl->no_wait_shutdown = 1; | |
974 pc->ssl->no_send_shutdown = 1; | |
975 | |
976 (void) ngx_ssl_shutdown(pc); | |
977 } | |
978 #endif | |
979 | |
980 ngx_close_connection(pc); | |
981 u->peer.connection = NULL; | |
982 } | |
983 | |
984 ngx_stream_proxy_connect(s); | |
985 } | |
986 | |
987 | |
988 static void | |
989 ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc) | |
990 { | |
991 ngx_connection_t *pc; | |
992 ngx_stream_upstream_t *u; | |
993 | |
994 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
995 "finalize stream proxy: %i", rc); | |
996 | |
997 u = s->upstream; | |
998 | |
999 if (u == NULL) { | |
1000 goto noupstream; | |
1001 } | |
1002 | |
1003 if (u->peer.free && u->peer.sockaddr) { | |
1004 u->peer.free(&u->peer, u->peer.data, 0); | |
1005 u->peer.sockaddr = NULL; | |
1006 } | |
1007 | |
1008 pc = u->peer.connection; | |
1009 | |
1010 if (pc) { | |
1011 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
1012 "close stream proxy upstream connection: %d", pc->fd); | |
1013 | |
1014 #if (NGX_STREAM_SSL) | |
1015 if (pc->ssl) { | |
1016 pc->ssl->no_wait_shutdown = 1; | |
1017 (void) ngx_ssl_shutdown(pc); | |
1018 } | |
1019 #endif | |
1020 | |
1021 ngx_close_connection(pc); | |
1022 u->peer.connection = NULL; | |
1023 } | |
1024 | |
1025 noupstream: | |
1026 | |
1027 ngx_stream_close_connection(s->connection); | |
1028 } | |
1029 | |
1030 | |
1031 static u_char * | |
1032 ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
1033 { | |
1034 u_char *p; | |
1035 ngx_connection_t *pc; | |
1036 ngx_stream_session_t *s; | |
1037 ngx_stream_upstream_t *u; | |
1038 | |
1039 s = log->data; | |
1040 | |
1041 u = s->upstream; | |
1042 | |
1043 p = buf; | |
1044 | |
1045 if (u->peer.name) { | |
1046 p = ngx_snprintf(p, len, ", upstream: \"%V\"", u->peer.name); | |
1047 len -= p - buf; | |
1048 } | |
1049 | |
1050 pc = u->peer.connection; | |
1051 | |
1052 p = ngx_snprintf(p, len, | |
1053 ", bytes from/to client:%O/%O" | |
1054 ", bytes from/to upstream:%O/%O", | |
1055 s->received, s->connection->sent, | |
1056 u->received, pc ? pc->sent : 0); | |
1057 | |
1058 return p; | |
1059 } | |
1060 | |
1061 | |
1062 static void * | |
1063 ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf) | |
1064 { | |
1065 ngx_stream_proxy_srv_conf_t *conf; | |
1066 | |
1067 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_proxy_srv_conf_t)); | |
1068 if (conf == NULL) { | |
1069 return NULL; | |
1070 } | |
1071 | |
1072 /* | |
1073 * set by ngx_pcalloc(): | |
1074 * | |
1075 * conf->ssl_protocols = 0; | |
1076 * conf->ssl_ciphers = { 0, NULL }; | |
1077 * conf->ssl_name = { 0, NULL }; | |
1078 * conf->ssl_trusted_certificate = { 0, NULL }; | |
1079 * conf->ssl_crl = { 0, NULL }; | |
1080 * conf->ssl_certificate = { 0, NULL }; | |
1081 * conf->ssl_certificate_key = { 0, NULL }; | |
1082 * | |
1083 * conf->ssl = NULL; | |
1084 * conf->upstream = NULL; | |
1085 */ | |
1086 | |
1087 conf->connect_timeout = NGX_CONF_UNSET_MSEC; | |
1088 conf->timeout = NGX_CONF_UNSET_MSEC; | |
1089 conf->next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
1090 conf->downstream_buf_size = NGX_CONF_UNSET_SIZE; | |
1091 conf->upstream_buf_size = NGX_CONF_UNSET_SIZE; | |
1092 conf->next_upstream_tries = NGX_CONF_UNSET_UINT; | |
1093 conf->next_upstream = NGX_CONF_UNSET; | |
1094 | |
1095 #if (NGX_STREAM_SSL) | |
1096 conf->ssl_enable = NGX_CONF_UNSET; | |
1097 conf->ssl_session_reuse = NGX_CONF_UNSET; | |
1098 conf->ssl_server_name = NGX_CONF_UNSET; | |
1099 conf->ssl_verify = NGX_CONF_UNSET; | |
1100 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
1101 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
1102 #endif | |
1103 | |
1104 return conf; | |
1105 } | |
1106 | |
1107 | |
1108 static char * | |
1109 ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
1110 { | |
1111 ngx_stream_proxy_srv_conf_t *prev = parent; | |
1112 ngx_stream_proxy_srv_conf_t *conf = child; | |
1113 | |
1114 ngx_conf_merge_msec_value(conf->connect_timeout, | |
1115 prev->connect_timeout, 60000); | |
1116 | |
1117 ngx_conf_merge_msec_value(conf->timeout, | |
1118 prev->timeout, 10 * 60000); | |
1119 | |
1120 ngx_conf_merge_msec_value(conf->next_upstream_timeout, | |
1121 prev->next_upstream_timeout, 0); | |
1122 | |
1123 ngx_conf_merge_size_value(conf->downstream_buf_size, | |
1124 prev->downstream_buf_size, 16384); | |
1125 | |
1126 ngx_conf_merge_size_value(conf->upstream_buf_size, | |
1127 prev->upstream_buf_size, 16384); | |
1128 | |
1129 ngx_conf_merge_uint_value(conf->next_upstream_tries, | |
1130 prev->next_upstream_tries, 0); | |
1131 | |
1132 ngx_conf_merge_value(conf->next_upstream, prev->next_upstream, 1); | |
1133 | |
1134 #if (NGX_STREAM_SSL) | |
1135 | |
1136 ngx_conf_merge_value(conf->ssl_enable, prev->ssl_enable, 0); | |
1137 | |
1138 ngx_conf_merge_value(conf->ssl_session_reuse, | |
1139 prev->ssl_session_reuse, 1); | |
1140 | |
1141 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
6157
b2899e7d0ef8
Disabled SSLv3 by default (ticket #653).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6124
diff
changeset
|
1142 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 |
b2899e7d0ef8
Disabled SSLv3 by default (ticket #653).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6124
diff
changeset
|
1143 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); |
6115 | 1144 |
1145 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, "DEFAULT"); | |
1146 | |
1147 ngx_conf_merge_str_value(conf->ssl_name, prev->ssl_name, ""); | |
1148 | |
1149 ngx_conf_merge_value(conf->ssl_server_name, prev->ssl_server_name, 0); | |
1150 | |
1151 ngx_conf_merge_value(conf->ssl_verify, prev->ssl_verify, 0); | |
1152 | |
1153 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
1154 prev->ssl_verify_depth, 1); | |
1155 | |
1156 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
1157 prev->ssl_trusted_certificate, ""); | |
1158 | |
1159 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
1160 | |
1161 ngx_conf_merge_str_value(conf->ssl_certificate, | |
1162 prev->ssl_certificate, ""); | |
1163 | |
1164 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
1165 prev->ssl_certificate_key, ""); | |
1166 | |
1167 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
1168 | |
1169 if (conf->ssl_enable && ngx_stream_proxy_set_ssl(cf, conf) != NGX_OK) { | |
1170 return NGX_CONF_ERROR; | |
1171 } | |
1172 | |
1173 #endif | |
1174 | |
1175 return NGX_CONF_OK; | |
1176 } | |
1177 | |
1178 | |
1179 #if (NGX_STREAM_SSL) | |
1180 | |
1181 static ngx_int_t | |
1182 ngx_stream_proxy_set_ssl(ngx_conf_t *cf, ngx_stream_proxy_srv_conf_t *pscf) | |
1183 { | |
1184 ngx_pool_cleanup_t *cln; | |
1185 | |
1186 pscf->ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
1187 if (pscf->ssl == NULL) { | |
1188 return NGX_ERROR; | |
1189 } | |
1190 | |
1191 pscf->ssl->log = cf->log; | |
1192 | |
1193 if (ngx_ssl_create(pscf->ssl, pscf->ssl_protocols, NULL) != NGX_OK) { | |
1194 return NGX_ERROR; | |
1195 } | |
1196 | |
1197 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
1198 if (cln == NULL) { | |
1199 return NGX_ERROR; | |
1200 } | |
1201 | |
1202 cln->handler = ngx_ssl_cleanup_ctx; | |
1203 cln->data = pscf->ssl; | |
1204 | |
1205 if (pscf->ssl_certificate.len) { | |
1206 | |
1207 if (pscf->ssl_certificate_key.len == 0) { | |
1208 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1209 "no \"proxy_ssl_certificate_key\" is defined " | |
1210 "for certificate \"%V\"", &pscf->ssl_certificate); | |
1211 return NGX_ERROR; | |
1212 } | |
1213 | |
1214 if (ngx_ssl_certificate(cf, pscf->ssl, &pscf->ssl_certificate, | |
1215 &pscf->ssl_certificate_key, pscf->ssl_passwords) | |
1216 != NGX_OK) | |
1217 { | |
1218 return NGX_ERROR; | |
1219 } | |
1220 } | |
1221 | |
1222 if (SSL_CTX_set_cipher_list(pscf->ssl->ctx, | |
1223 (const char *) pscf->ssl_ciphers.data) | |
1224 == 0) | |
1225 { | |
1226 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
1227 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
1228 &pscf->ssl_ciphers); | |
1229 return NGX_ERROR; | |
1230 } | |
1231 | |
1232 if (pscf->ssl_verify) { | |
1233 if (pscf->ssl_trusted_certificate.len == 0) { | |
1234 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1235 "no proxy_ssl_trusted_certificate for proxy_ssl_verify"); | |
1236 return NGX_ERROR; | |
1237 } | |
1238 | |
1239 if (ngx_ssl_trusted_certificate(cf, pscf->ssl, | |
1240 &pscf->ssl_trusted_certificate, | |
1241 pscf->ssl_verify_depth) | |
1242 != NGX_OK) | |
1243 { | |
1244 return NGX_ERROR; | |
1245 } | |
1246 | |
1247 if (ngx_ssl_crl(cf, pscf->ssl, &pscf->ssl_crl) != NGX_OK) { | |
1248 return NGX_ERROR; | |
1249 } | |
1250 } | |
1251 | |
1252 return NGX_OK; | |
1253 } | |
1254 | |
1255 #endif | |
1256 | |
1257 | |
1258 static char * | |
1259 ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1260 { | |
1261 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
1262 | |
1263 ngx_url_t u; | |
1264 ngx_str_t *value, *url; | |
1265 ngx_stream_core_srv_conf_t *cscf; | |
1266 | |
1267 if (pscf->upstream) { | |
1268 return "is duplicate"; | |
1269 } | |
1270 | |
1271 cscf = ngx_stream_conf_get_module_srv_conf(cf, ngx_stream_core_module); | |
1272 | |
1273 cscf->handler = ngx_stream_proxy_handler; | |
1274 | |
1275 value = cf->args->elts; | |
1276 | |
1277 url = &value[1]; | |
1278 | |
1279 ngx_memzero(&u, sizeof(ngx_url_t)); | |
1280 | |
1281 u.url = *url; | |
1282 u.no_resolve = 1; | |
1283 | |
1284 pscf->upstream = ngx_stream_upstream_add(cf, &u, 0); | |
1285 if (pscf->upstream == NULL) { | |
1286 return NGX_CONF_ERROR; | |
1287 } | |
1288 | |
1289 return NGX_CONF_OK; | |
1290 } |