Mercurial > hg > nginx
annotate src/stream/ngx_stream_proxy_module.c @ 6184:fa663739e115
Stream: client-side PROXY protocol.
The new directive "proxy_protocol" toggles sending out PROXY protocol header
to upstream once connection is established.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 16 Jun 2015 13:45:16 +0300 |
parents | 4dcffe43a7ea |
children | abee77018d3a |
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; | |
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24 ngx_flag_t proxy_protocol; |
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25 ngx_addr_t *local; |
6115 | 26 |
27 #if (NGX_STREAM_SSL) | |
28 ngx_flag_t ssl_enable; | |
29 ngx_flag_t ssl_session_reuse; | |
30 ngx_uint_t ssl_protocols; | |
31 ngx_str_t ssl_ciphers; | |
32 ngx_str_t ssl_name; | |
33 ngx_flag_t ssl_server_name; | |
34 | |
35 ngx_flag_t ssl_verify; | |
36 ngx_uint_t ssl_verify_depth; | |
37 ngx_str_t ssl_trusted_certificate; | |
38 ngx_str_t ssl_crl; | |
39 ngx_str_t ssl_certificate; | |
40 ngx_str_t ssl_certificate_key; | |
41 ngx_array_t *ssl_passwords; | |
42 | |
43 ngx_ssl_t *ssl; | |
44 #endif | |
45 | |
46 ngx_stream_upstream_srv_conf_t *upstream; | |
47 } ngx_stream_proxy_srv_conf_t; | |
48 | |
49 | |
50 static void ngx_stream_proxy_handler(ngx_stream_session_t *s); | |
51 static void ngx_stream_proxy_connect(ngx_stream_session_t *s); | |
52 static void ngx_stream_proxy_init_upstream(ngx_stream_session_t *s); | |
53 static void ngx_stream_proxy_upstream_handler(ngx_event_t *ev); | |
54 static void ngx_stream_proxy_downstream_handler(ngx_event_t *ev); | |
55 static void ngx_stream_proxy_connect_handler(ngx_event_t *ev); | |
56 static ngx_int_t ngx_stream_proxy_test_connect(ngx_connection_t *c); | |
57 static ngx_int_t ngx_stream_proxy_process(ngx_stream_session_t *s, | |
58 ngx_uint_t from_upstream, ngx_uint_t do_write); | |
59 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s); | |
60 static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc); | |
61 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, | |
62 size_t len); | |
63 | |
64 static void *ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf); | |
65 static char *ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
66 void *child); | |
67 static char *ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
68 void *conf); | |
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69 static char *ngx_stream_proxy_bind(ngx_conf_t *cf, ngx_command_t *cmd, |
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70 void *conf); |
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71 static ngx_int_t ngx_stream_proxy_send_proxy_protocol(ngx_stream_session_t *s); |
6115 | 72 |
73 #if (NGX_STREAM_SSL) | |
74 | |
75 static char *ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, | |
76 ngx_command_t *cmd, void *conf); | |
77 static void ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s); | |
78 static void ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc); | |
79 static ngx_int_t ngx_stream_proxy_ssl_name(ngx_stream_session_t *s); | |
80 static ngx_int_t ngx_stream_proxy_set_ssl(ngx_conf_t *cf, | |
81 ngx_stream_proxy_srv_conf_t *pscf); | |
82 | |
83 | |
84 static ngx_conf_bitmask_t ngx_stream_proxy_ssl_protocols[] = { | |
85 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
86 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
87 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
88 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
89 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
90 { ngx_null_string, 0 } | |
91 }; | |
92 | |
93 #endif | |
94 | |
95 | |
96 static ngx_command_t ngx_stream_proxy_commands[] = { | |
97 | |
98 { ngx_string("proxy_pass"), | |
99 NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
100 ngx_stream_proxy_pass, | |
101 NGX_STREAM_SRV_CONF_OFFSET, | |
102 0, | |
103 NULL }, | |
104 | |
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105 { ngx_string("proxy_bind"), |
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106 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
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107 ngx_stream_proxy_bind, |
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108 NGX_STREAM_SRV_CONF_OFFSET, |
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109 0, |
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110 NULL }, |
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111 |
6115 | 112 { ngx_string("proxy_connect_timeout"), |
113 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
114 ngx_conf_set_msec_slot, | |
115 NGX_STREAM_SRV_CONF_OFFSET, | |
116 offsetof(ngx_stream_proxy_srv_conf_t, connect_timeout), | |
117 NULL }, | |
118 | |
119 { ngx_string("proxy_timeout"), | |
120 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
121 ngx_conf_set_msec_slot, | |
122 NGX_STREAM_SRV_CONF_OFFSET, | |
123 offsetof(ngx_stream_proxy_srv_conf_t, timeout), | |
124 NULL }, | |
125 | |
126 { ngx_string("proxy_downstream_buffer"), | |
127 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
128 ngx_conf_set_size_slot, | |
129 NGX_STREAM_SRV_CONF_OFFSET, | |
130 offsetof(ngx_stream_proxy_srv_conf_t, downstream_buf_size), | |
131 NULL }, | |
132 | |
133 { ngx_string("proxy_upstream_buffer"), | |
134 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
135 ngx_conf_set_size_slot, | |
136 NGX_STREAM_SRV_CONF_OFFSET, | |
137 offsetof(ngx_stream_proxy_srv_conf_t, upstream_buf_size), | |
138 NULL }, | |
139 | |
140 { ngx_string("proxy_next_upstream"), | |
141 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
142 ngx_conf_set_flag_slot, | |
143 NGX_STREAM_SRV_CONF_OFFSET, | |
144 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream), | |
145 NULL }, | |
146 | |
147 { ngx_string("proxy_next_upstream_tries"), | |
148 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
149 ngx_conf_set_num_slot, | |
150 NGX_STREAM_SRV_CONF_OFFSET, | |
151 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_tries), | |
152 NULL }, | |
153 | |
154 { ngx_string("proxy_next_upstream_timeout"), | |
155 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
156 ngx_conf_set_msec_slot, | |
157 NGX_STREAM_SRV_CONF_OFFSET, | |
158 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_timeout), | |
159 NULL }, | |
160 | |
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161 { ngx_string("proxy_protocol"), |
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162 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, |
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163 ngx_conf_set_flag_slot, |
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164 NGX_STREAM_SRV_CONF_OFFSET, |
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165 offsetof(ngx_stream_proxy_srv_conf_t, proxy_protocol), |
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166 NULL }, |
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167 |
6115 | 168 #if (NGX_STREAM_SSL) |
169 | |
170 { ngx_string("proxy_ssl"), | |
171 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
172 ngx_conf_set_flag_slot, | |
173 NGX_STREAM_SRV_CONF_OFFSET, | |
174 offsetof(ngx_stream_proxy_srv_conf_t, ssl_enable), | |
175 NULL }, | |
176 | |
177 { ngx_string("proxy_ssl_session_reuse"), | |
178 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
179 ngx_conf_set_flag_slot, | |
180 NGX_STREAM_SRV_CONF_OFFSET, | |
181 offsetof(ngx_stream_proxy_srv_conf_t, ssl_session_reuse), | |
182 NULL }, | |
183 | |
184 { ngx_string("proxy_ssl_protocols"), | |
185 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
186 ngx_conf_set_bitmask_slot, | |
187 NGX_STREAM_SRV_CONF_OFFSET, | |
188 offsetof(ngx_stream_proxy_srv_conf_t, ssl_protocols), | |
189 &ngx_stream_proxy_ssl_protocols }, | |
190 | |
191 { ngx_string("proxy_ssl_ciphers"), | |
192 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
193 ngx_conf_set_str_slot, | |
194 NGX_STREAM_SRV_CONF_OFFSET, | |
195 offsetof(ngx_stream_proxy_srv_conf_t, ssl_ciphers), | |
196 NULL }, | |
197 | |
198 { ngx_string("proxy_ssl_name"), | |
199 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
200 ngx_conf_set_str_slot, | |
201 NGX_STREAM_SRV_CONF_OFFSET, | |
202 offsetof(ngx_stream_proxy_srv_conf_t, ssl_name), | |
203 NULL }, | |
204 | |
205 { ngx_string("proxy_ssl_server_name"), | |
206 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
207 ngx_conf_set_flag_slot, | |
208 NGX_STREAM_SRV_CONF_OFFSET, | |
209 offsetof(ngx_stream_proxy_srv_conf_t, ssl_server_name), | |
210 NULL }, | |
211 | |
212 { ngx_string("proxy_ssl_verify"), | |
213 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
214 ngx_conf_set_flag_slot, | |
215 NGX_STREAM_SRV_CONF_OFFSET, | |
216 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify), | |
217 NULL }, | |
218 | |
219 { ngx_string("proxy_ssl_verify_depth"), | |
220 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
221 ngx_conf_set_num_slot, | |
222 NGX_STREAM_SRV_CONF_OFFSET, | |
223 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify_depth), | |
224 NULL }, | |
225 | |
226 { ngx_string("proxy_ssl_trusted_certificate"), | |
227 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
228 ngx_conf_set_str_slot, | |
229 NGX_STREAM_SRV_CONF_OFFSET, | |
230 offsetof(ngx_stream_proxy_srv_conf_t, ssl_trusted_certificate), | |
231 NULL }, | |
232 | |
233 { ngx_string("proxy_ssl_crl"), | |
234 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
235 ngx_conf_set_str_slot, | |
236 NGX_STREAM_SRV_CONF_OFFSET, | |
237 offsetof(ngx_stream_proxy_srv_conf_t, ssl_crl), | |
238 NULL }, | |
239 | |
240 { ngx_string("proxy_ssl_certificate"), | |
241 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
242 ngx_conf_set_str_slot, | |
243 NGX_STREAM_SRV_CONF_OFFSET, | |
244 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate), | |
245 NULL }, | |
246 | |
247 { ngx_string("proxy_ssl_certificate_key"), | |
248 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
249 ngx_conf_set_str_slot, | |
250 NGX_STREAM_SRV_CONF_OFFSET, | |
251 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate_key), | |
252 NULL }, | |
253 | |
254 { ngx_string("proxy_ssl_password_file"), | |
255 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
256 ngx_stream_proxy_ssl_password_file, | |
257 NGX_STREAM_SRV_CONF_OFFSET, | |
258 0, | |
259 NULL }, | |
260 | |
261 #endif | |
262 | |
263 ngx_null_command | |
264 }; | |
265 | |
266 | |
267 static ngx_stream_module_t ngx_stream_proxy_module_ctx = { | |
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268 NULL, /* postconfiguration */ |
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269 |
6115 | 270 NULL, /* create main configuration */ |
271 NULL, /* init main configuration */ | |
272 | |
273 ngx_stream_proxy_create_srv_conf, /* create server configuration */ | |
274 ngx_stream_proxy_merge_srv_conf /* merge server configuration */ | |
275 }; | |
276 | |
277 | |
278 ngx_module_t ngx_stream_proxy_module = { | |
279 NGX_MODULE_V1, | |
280 &ngx_stream_proxy_module_ctx, /* module context */ | |
281 ngx_stream_proxy_commands, /* module directives */ | |
282 NGX_STREAM_MODULE, /* module type */ | |
283 NULL, /* init master */ | |
284 NULL, /* init module */ | |
285 NULL, /* init process */ | |
286 NULL, /* init thread */ | |
287 NULL, /* exit thread */ | |
288 NULL, /* exit process */ | |
289 NULL, /* exit master */ | |
290 NGX_MODULE_V1_PADDING | |
291 }; | |
292 | |
293 | |
294 static void | |
295 ngx_stream_proxy_handler(ngx_stream_session_t *s) | |
296 { | |
297 u_char *p; | |
298 ngx_connection_t *c; | |
299 ngx_stream_upstream_t *u; | |
300 ngx_stream_proxy_srv_conf_t *pscf; | |
301 ngx_stream_upstream_srv_conf_t *uscf; | |
302 | |
303 c = s->connection; | |
304 | |
305 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
306 | |
307 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
308 "proxy connection handler"); | |
309 | |
310 u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t)); | |
311 if (u == NULL) { | |
312 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
313 return; | |
314 } | |
315 | |
316 s->upstream = u; | |
317 | |
318 s->log_handler = ngx_stream_proxy_log_error; | |
319 | |
320 u->peer.log = c->log; | |
321 u->peer.log_error = NGX_ERROR_ERR; | |
322 | |
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323 u->peer.local = pscf->local; |
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324 |
6115 | 325 uscf = pscf->upstream; |
326 | |
327 if (uscf->peer.init(s, uscf) != NGX_OK) { | |
328 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
329 return; | |
330 } | |
331 | |
332 u->peer.start_time = ngx_current_msec; | |
333 | |
334 if (pscf->next_upstream_tries | |
335 && u->peer.tries > pscf->next_upstream_tries) | |
336 { | |
337 u->peer.tries = pscf->next_upstream_tries; | |
338 } | |
339 | |
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340 u->proxy_protocol = pscf->proxy_protocol; |
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341 |
6115 | 342 p = ngx_pnalloc(c->pool, pscf->downstream_buf_size); |
343 if (p == NULL) { | |
344 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
345 return; | |
346 } | |
347 | |
348 u->downstream_buf.start = p; | |
349 u->downstream_buf.end = p + pscf->downstream_buf_size; | |
350 u->downstream_buf.pos = p; | |
351 u->downstream_buf.last = p; | |
352 | |
353 c->write->handler = ngx_stream_proxy_downstream_handler; | |
354 c->read->handler = ngx_stream_proxy_downstream_handler; | |
355 | |
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356 if (u->proxy_protocol |
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357 #if (NGX_STREAM_SSL) |
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358 && pscf->ssl == NULL |
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359 #endif |
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360 && pscf->downstream_buf_size >= NGX_PROXY_PROTOCOL_MAX_HEADER |
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361 ) |
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362 { |
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363 /* optimization for a typical case */ |
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364 |
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365 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, |
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366 "stream proxy send PROXY protocol header"); |
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367 |
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368 p = ngx_proxy_protocol_write(c, u->downstream_buf.last, |
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369 u->downstream_buf.end); |
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370 if (p == NULL) { |
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371 ngx_stream_proxy_finalize(s, NGX_ERROR); |
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372 return; |
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373 } |
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374 |
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375 u->downstream_buf.last = p; |
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376 u->proxy_protocol = 0; |
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377 } |
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378 |
6115 | 379 if (ngx_stream_proxy_process(s, 0, 0) != NGX_OK) { |
380 return; | |
381 } | |
382 | |
383 ngx_stream_proxy_connect(s); | |
384 } | |
385 | |
386 | |
387 static void | |
388 ngx_stream_proxy_connect(ngx_stream_session_t *s) | |
389 { | |
390 ngx_int_t rc; | |
391 ngx_connection_t *c, *pc; | |
392 ngx_stream_upstream_t *u; | |
393 ngx_stream_proxy_srv_conf_t *pscf; | |
394 | |
395 c = s->connection; | |
396 | |
397 c->log->action = "connecting to upstream"; | |
398 | |
399 u = s->upstream; | |
400 | |
401 rc = ngx_event_connect_peer(&u->peer); | |
402 | |
403 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc); | |
404 | |
405 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
406 | |
407 if (rc == NGX_ERROR) { | |
408 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
409 return; | |
410 } | |
411 | |
412 if (rc == NGX_BUSY) { | |
413 ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams"); | |
414 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
415 return; | |
416 } | |
417 | |
418 if (rc == NGX_DECLINED) { | |
419 ngx_stream_proxy_next_upstream(s); | |
420 return; | |
421 } | |
422 | |
423 /* rc == NGX_OK || rc == NGX_AGAIN || rc == NGX_DONE */ | |
424 | |
425 pc = u->peer.connection; | |
426 | |
427 pc->data = s; | |
428 pc->log = c->log; | |
429 pc->pool = c->pool; | |
430 pc->read->log = c->log; | |
431 pc->write->log = c->log; | |
432 | |
433 if (rc != NGX_AGAIN) { | |
434 ngx_stream_proxy_init_upstream(s); | |
435 return; | |
436 } | |
437 | |
438 pc->read->handler = ngx_stream_proxy_connect_handler; | |
439 pc->write->handler = ngx_stream_proxy_connect_handler; | |
440 | |
441 ngx_add_timer(pc->write, pscf->connect_timeout); | |
442 } | |
443 | |
444 | |
445 static void | |
446 ngx_stream_proxy_init_upstream(ngx_stream_session_t *s) | |
447 { | |
448 u_char *p; | |
449 ngx_connection_t *c, *pc; | |
450 ngx_log_handler_pt handler; | |
451 ngx_stream_upstream_t *u; | |
452 ngx_stream_proxy_srv_conf_t *pscf; | |
453 | |
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454 u = s->upstream; |
6115 | 455 |
6184
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456 if (u->proxy_protocol) { |
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457 if (ngx_stream_proxy_send_proxy_protocol(s) != NGX_OK) { |
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458 return; |
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459 } |
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460 |
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461 u->proxy_protocol = 0; |
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462 } |
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463 |
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464 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); |
6115 | 465 |
466 pc = u->peer.connection; | |
467 | |
468 #if (NGX_STREAM_SSL) | |
469 if (pscf->ssl && pc->ssl == NULL) { | |
470 ngx_stream_proxy_ssl_init_connection(s); | |
471 return; | |
472 } | |
473 #endif | |
474 | |
475 c = s->connection; | |
476 | |
477 if (c->log->log_level >= NGX_LOG_INFO) { | |
478 ngx_str_t s; | |
479 u_char addr[NGX_SOCKADDR_STRLEN]; | |
480 | |
481 s.len = NGX_SOCKADDR_STRLEN; | |
482 s.data = addr; | |
483 | |
484 if (ngx_connection_local_sockaddr(pc, &s, 1) == NGX_OK) { | |
485 handler = c->log->handler; | |
486 c->log->handler = NULL; | |
487 | |
488 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxy %V connected to %V", | |
489 &s, u->peer.name); | |
490 | |
491 c->log->handler = handler; | |
492 } | |
493 } | |
494 | |
495 c->log->action = "proxying connection"; | |
496 | |
497 p = ngx_pnalloc(c->pool, pscf->upstream_buf_size); | |
498 if (p == NULL) { | |
499 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
500 return; | |
501 } | |
502 | |
503 u->upstream_buf.start = p; | |
504 u->upstream_buf.end = p + pscf->upstream_buf_size; | |
505 u->upstream_buf.pos = p; | |
506 u->upstream_buf.last = p; | |
507 | |
508 pc->read->handler = ngx_stream_proxy_upstream_handler; | |
509 pc->write->handler = ngx_stream_proxy_upstream_handler; | |
510 | |
511 if (ngx_stream_proxy_process(s, 1, 0) != NGX_OK) { | |
512 return; | |
513 } | |
514 | |
515 ngx_stream_proxy_process(s, 0, 1); | |
516 } | |
517 | |
518 | |
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519 static ngx_int_t |
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520 ngx_stream_proxy_send_proxy_protocol(ngx_stream_session_t *s) |
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521 { |
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522 u_char *p; |
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523 ssize_t n, size; |
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524 ngx_connection_t *c, *pc; |
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525 ngx_stream_upstream_t *u; |
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526 ngx_stream_proxy_srv_conf_t *pscf; |
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527 u_char buf[NGX_PROXY_PROTOCOL_MAX_HEADER]; |
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528 |
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529 c = s->connection; |
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530 |
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531 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, |
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532 "stream proxy send PROXY protocol header"); |
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533 |
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534 p = ngx_proxy_protocol_write(c, buf, buf + NGX_PROXY_PROTOCOL_MAX_HEADER); |
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535 if (p == NULL) { |
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536 ngx_stream_proxy_finalize(s, NGX_ERROR); |
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537 return NGX_ERROR; |
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538 } |
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539 |
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540 u = s->upstream; |
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541 |
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542 pc = u->peer.connection; |
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543 |
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544 size = p - buf; |
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545 |
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546 n = pc->send(pc, buf, size); |
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547 |
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548 if (n == NGX_AGAIN) { |
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549 if (ngx_handle_write_event(pc->write, 0) != NGX_OK) { |
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550 ngx_stream_proxy_finalize(s, NGX_ERROR); |
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551 return NGX_ERROR; |
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552 } |
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553 |
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554 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); |
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555 |
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556 ngx_add_timer(pc->write, pscf->timeout); |
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557 |
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558 pc->write->handler = ngx_stream_proxy_connect_handler; |
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559 |
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560 return NGX_AGAIN; |
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561 } |
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562 |
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563 if (n == NGX_ERROR) { |
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564 ngx_stream_proxy_finalize(s, NGX_DECLINED); |
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565 return NGX_ERROR; |
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566 } |
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567 |
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568 if (n != size) { |
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569 |
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570 /* |
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571 * PROXY protocol specification: |
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572 * The sender must always ensure that the header |
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573 * is sent at once, so that the transport layer |
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574 * maintains atomicity along the path to the receiver. |
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575 */ |
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576 |
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577 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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578 "could not send PROXY protocol header at once"); |
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579 |
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580 ngx_stream_proxy_finalize(s, NGX_DECLINED); |
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581 |
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582 return NGX_ERROR; |
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583 } |
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584 |
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585 return NGX_OK; |
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586 } |
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587 |
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588 |
6115 | 589 #if (NGX_STREAM_SSL) |
590 | |
591 static char * | |
592 ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, | |
593 void *conf) | |
594 { | |
595 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
596 | |
597 ngx_str_t *value; | |
598 | |
599 if (pscf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
600 return "is duplicate"; | |
601 } | |
602 | |
603 value = cf->args->elts; | |
604 | |
605 pscf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
606 | |
607 if (pscf->ssl_passwords == NULL) { | |
608 return NGX_CONF_ERROR; | |
609 } | |
610 | |
611 return NGX_CONF_OK; | |
612 } | |
613 | |
614 | |
615 static void | |
616 ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s) | |
617 { | |
618 ngx_int_t rc; | |
619 ngx_connection_t *pc; | |
620 ngx_stream_upstream_t *u; | |
621 ngx_stream_proxy_srv_conf_t *pscf; | |
622 | |
623 u = s->upstream; | |
624 | |
625 pc = u->peer.connection; | |
626 | |
627 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
628 | |
629 if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
630 != NGX_OK) | |
631 { | |
632 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
633 return; | |
634 } | |
635 | |
636 if (pscf->ssl_server_name || pscf->ssl_verify) { | |
637 if (ngx_stream_proxy_ssl_name(s) != NGX_OK) { | |
638 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
639 return; | |
640 } | |
641 } | |
642 | |
643 if (pscf->ssl_session_reuse) { | |
644 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { | |
645 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
646 return; | |
647 } | |
648 } | |
649 | |
650 s->connection->log->action = "SSL handshaking to upstream"; | |
651 | |
652 rc = ngx_ssl_handshake(pc); | |
653 | |
654 if (rc == NGX_AGAIN) { | |
655 | |
656 if (!pc->write->timer_set) { | |
657 ngx_add_timer(pc->write, pscf->connect_timeout); | |
658 } | |
659 | |
660 pc->ssl->handler = ngx_stream_proxy_ssl_handshake; | |
661 return; | |
662 } | |
663 | |
664 ngx_stream_proxy_ssl_handshake(pc); | |
665 } | |
666 | |
667 | |
668 static void | |
669 ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc) | |
670 { | |
671 long rc; | |
672 ngx_stream_session_t *s; | |
673 ngx_stream_upstream_t *u; | |
674 ngx_stream_proxy_srv_conf_t *pscf; | |
675 | |
676 s = pc->data; | |
677 | |
678 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
679 | |
680 if (pc->ssl->handshaked) { | |
681 | |
682 if (pscf->ssl_verify) { | |
683 rc = SSL_get_verify_result(pc->ssl->connection); | |
684 | |
685 if (rc != X509_V_OK) { | |
686 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
687 "upstream SSL certificate verify error: (%l:%s)", | |
688 rc, X509_verify_cert_error_string(rc)); | |
689 goto failed; | |
690 } | |
691 | |
692 u = s->upstream; | |
693 | |
694 if (ngx_ssl_check_host(pc, &u->ssl_name) != NGX_OK) { | |
695 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
696 "upstream SSL certificate does not match \"%V\"", | |
697 &u->ssl_name); | |
698 goto failed; | |
699 } | |
700 } | |
701 | |
702 if (pscf->ssl_session_reuse) { | |
703 u = s->upstream; | |
704 u->peer.save_session(&u->peer, u->peer.data); | |
705 } | |
706 | |
707 ngx_stream_proxy_init_upstream(s); | |
708 | |
709 return; | |
710 } | |
711 | |
712 failed: | |
713 | |
714 ngx_stream_proxy_next_upstream(s); | |
715 } | |
716 | |
717 | |
718 static ngx_int_t | |
719 ngx_stream_proxy_ssl_name(ngx_stream_session_t *s) | |
720 { | |
721 u_char *p, *last; | |
722 ngx_str_t name; | |
723 ngx_stream_upstream_t *u; | |
724 ngx_stream_proxy_srv_conf_t *pscf; | |
725 | |
726 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
727 | |
728 u = s->upstream; | |
729 | |
730 name = pscf->ssl_name; | |
731 | |
732 if (name.len == 0) { | |
733 name = pscf->upstream->host; | |
734 } | |
735 | |
736 if (name.len == 0) { | |
737 goto done; | |
738 } | |
739 | |
740 /* | |
741 * ssl name here may contain port, strip it for compatibility | |
742 * with the http module | |
743 */ | |
744 | |
745 p = name.data; | |
746 last = name.data + name.len; | |
747 | |
748 if (*p == '[') { | |
749 p = ngx_strlchr(p, last, ']'); | |
750 | |
751 if (p == NULL) { | |
752 p = name.data; | |
753 } | |
754 } | |
755 | |
756 p = ngx_strlchr(p, last, ':'); | |
757 | |
758 if (p != NULL) { | |
759 name.len = p - name.data; | |
760 } | |
761 | |
762 if (!pscf->ssl_server_name) { | |
763 goto done; | |
764 } | |
765 | |
766 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME | |
767 | |
768 /* as per RFC 6066, literal IPv4 and IPv6 addresses are not permitted */ | |
769 | |
770 if (name.len == 0 || *name.data == '[') { | |
771 goto done; | |
772 } | |
773 | |
774 if (ngx_inet_addr(name.data, name.len) != INADDR_NONE) { | |
775 goto done; | |
776 } | |
777 | |
778 /* | |
779 * SSL_set_tlsext_host_name() needs a null-terminated string, | |
780 * hence we explicitly null-terminate name here | |
781 */ | |
782 | |
783 p = ngx_pnalloc(s->connection->pool, name.len + 1); | |
784 if (p == NULL) { | |
785 return NGX_ERROR; | |
786 } | |
787 | |
788 (void) ngx_cpystrn(p, name.data, name.len + 1); | |
789 | |
790 name.data = p; | |
791 | |
792 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
793 "upstream SSL server name: \"%s\"", name.data); | |
794 | |
795 if (SSL_set_tlsext_host_name(u->peer.connection->ssl->connection, name.data) | |
796 == 0) | |
797 { | |
798 ngx_ssl_error(NGX_LOG_ERR, s->connection->log, 0, | |
799 "SSL_set_tlsext_host_name(\"%s\") failed", name.data); | |
800 return NGX_ERROR; | |
801 } | |
802 | |
803 #endif | |
804 | |
805 done: | |
806 | |
807 u->ssl_name = name; | |
808 | |
809 return NGX_OK; | |
810 } | |
811 | |
812 #endif | |
813 | |
814 | |
815 static void | |
816 ngx_stream_proxy_downstream_handler(ngx_event_t *ev) | |
817 { | |
818 ngx_connection_t *c; | |
819 ngx_stream_session_t *s; | |
820 ngx_stream_upstream_t *u; | |
821 | |
822 c = ev->data; | |
823 s = c->data; | |
824 | |
825 if (ev->timedout) { | |
826 ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out"); | |
827 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
828 return; | |
829 } | |
830 | |
831 u = s->upstream; | |
832 | |
833 if (!ev->write) { | |
834 ngx_stream_proxy_process(s, 0, 0); | |
835 | |
836 } else if (u->upstream_buf.start) { | |
837 ngx_stream_proxy_process(s, 1, 1); | |
838 } | |
839 } | |
840 | |
841 | |
842 static void | |
843 ngx_stream_proxy_upstream_handler(ngx_event_t *ev) | |
844 { | |
845 ngx_connection_t *c; | |
846 ngx_stream_session_t *s; | |
847 ngx_stream_upstream_t *u; | |
848 | |
849 c = ev->data; | |
850 s = c->data; | |
851 | |
852 u = s->upstream; | |
853 | |
854 if (ev->write) { | |
855 ngx_stream_proxy_process(s, 0, 1); | |
856 | |
857 } else if (u->upstream_buf.start) { | |
858 ngx_stream_proxy_process(s, 1, 0); | |
859 } | |
860 } | |
861 | |
862 | |
863 static void | |
864 ngx_stream_proxy_connect_handler(ngx_event_t *ev) | |
865 { | |
866 ngx_connection_t *c; | |
867 ngx_stream_session_t *s; | |
868 | |
869 c = ev->data; | |
870 s = c->data; | |
871 | |
872 if (ev->timedout) { | |
873 ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "upstream timed out"); | |
874 ngx_stream_proxy_next_upstream(s); | |
875 return; | |
876 } | |
877 | |
878 ngx_del_timer(c->write); | |
879 | |
880 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
881 "stream proxy connect upstream"); | |
882 | |
883 if (ngx_stream_proxy_test_connect(c) != NGX_OK) { | |
884 ngx_stream_proxy_next_upstream(s); | |
885 return; | |
886 } | |
887 | |
888 ngx_stream_proxy_init_upstream(s); | |
889 } | |
890 | |
891 | |
892 static ngx_int_t | |
893 ngx_stream_proxy_test_connect(ngx_connection_t *c) | |
894 { | |
895 int err; | |
896 socklen_t len; | |
897 | |
898 #if (NGX_HAVE_KQUEUE) | |
899 | |
900 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
901 err = c->write->kq_errno ? c->write->kq_errno : c->read->kq_errno; | |
902 | |
903 if (err) { | |
904 (void) ngx_connection_error(c, err, | |
905 "kevent() reported that connect() failed"); | |
906 return NGX_ERROR; | |
907 } | |
908 | |
909 } else | |
910 #endif | |
911 { | |
912 err = 0; | |
913 len = sizeof(int); | |
914 | |
915 /* | |
916 * BSDs and Linux return 0 and set a pending error in err | |
917 * Solaris returns -1 and sets errno | |
918 */ | |
919 | |
920 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
921 == -1) | |
922 { | |
923 err = ngx_socket_errno; | |
924 } | |
925 | |
926 if (err) { | |
927 (void) ngx_connection_error(c, err, "connect() failed"); | |
928 return NGX_ERROR; | |
929 } | |
930 } | |
931 | |
932 return NGX_OK; | |
933 } | |
934 | |
935 | |
936 static ngx_int_t | |
937 ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream, | |
938 ngx_uint_t do_write) | |
939 { | |
940 size_t size; | |
941 ssize_t n; | |
942 ngx_buf_t *b; | |
6124
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6115
diff
changeset
|
943 ngx_uint_t flags; |
6115 | 944 ngx_connection_t *c, *pc, *src, *dst; |
945 ngx_log_handler_pt handler; | |
946 ngx_stream_upstream_t *u; | |
947 ngx_stream_proxy_srv_conf_t *pscf; | |
948 | |
949 u = s->upstream; | |
950 | |
951 c = s->connection; | |
952 pc = u->upstream_buf.start ? u->peer.connection : NULL; | |
953 | |
954 if (from_upstream) { | |
955 src = pc; | |
956 dst = c; | |
957 b = &u->upstream_buf; | |
958 | |
959 } else { | |
960 src = c; | |
961 dst = pc; | |
962 b = &u->downstream_buf; | |
963 } | |
964 | |
965 for ( ;; ) { | |
966 | |
967 if (do_write) { | |
968 | |
969 size = b->last - b->pos; | |
970 | |
971 if (size && dst && dst->write->ready) { | |
972 | |
973 n = dst->send(dst, b->pos, size); | |
974 | |
975 if (n == NGX_ERROR) { | |
976 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
977 return NGX_ERROR; | |
978 } | |
979 | |
980 if (n > 0) { | |
981 b->pos += n; | |
982 | |
983 if (b->pos == b->last) { | |
984 b->pos = b->start; | |
985 b->last = b->start; | |
986 } | |
987 } | |
988 } | |
989 } | |
990 | |
991 size = b->end - b->last; | |
992 | |
993 if (size && src->read->ready) { | |
994 | |
995 n = src->recv(src, b->last, size); | |
996 | |
997 if (n == NGX_AGAIN || n == 0) { | |
998 break; | |
999 } | |
1000 | |
1001 if (n > 0) { | |
1002 if (from_upstream) { | |
1003 u->received += n; | |
1004 | |
1005 } else { | |
1006 s->received += n; | |
1007 } | |
1008 | |
1009 do_write = 1; | |
1010 b->last += n; | |
1011 continue; | |
1012 } | |
1013 | |
1014 if (n == NGX_ERROR) { | |
1015 src->read->eof = 1; | |
1016 } | |
1017 } | |
1018 | |
1019 break; | |
1020 } | |
1021 | |
1022 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
1023 | |
1024 if (src->read->eof && (b->pos == b->last || (dst && dst->read->eof))) { | |
1025 handler = c->log->handler; | |
1026 c->log->handler = NULL; | |
1027 | |
1028 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
1029 "%s disconnected" | |
1030 ", bytes from/to client:%O/%O" | |
1031 ", bytes from/to upstream:%O/%O", | |
1032 from_upstream ? "upstream" : "client", | |
1033 s->received, c->sent, u->received, pc ? pc->sent : 0); | |
1034 | |
1035 c->log->handler = handler; | |
1036 | |
1037 ngx_stream_proxy_finalize(s, NGX_OK); | |
1038 return NGX_DONE; | |
1039 } | |
1040 | |
6124
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parents:
6115
diff
changeset
|
1041 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
|
1042 |
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Stream: prevent repeated event notifications after eof.
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parents:
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diff
changeset
|
1043 if (ngx_handle_read_event(src->read, flags) != NGX_OK) { |
6115 | 1044 ngx_stream_proxy_finalize(s, NGX_ERROR); |
1045 return NGX_ERROR; | |
1046 } | |
1047 | |
1048 if (dst) { | |
1049 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { | |
1050 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
1051 return NGX_ERROR; | |
1052 } | |
1053 | |
1054 ngx_add_timer(c->read, pscf->timeout); | |
1055 } | |
1056 | |
1057 return NGX_OK; | |
1058 } | |
1059 | |
1060 | |
1061 static void | |
1062 ngx_stream_proxy_next_upstream(ngx_stream_session_t *s) | |
1063 { | |
1064 ngx_msec_t timeout; | |
1065 ngx_connection_t *pc; | |
1066 ngx_stream_upstream_t *u; | |
1067 ngx_stream_proxy_srv_conf_t *pscf; | |
1068 | |
1069 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
1070 "stream proxy next upstream"); | |
1071 | |
1072 u = s->upstream; | |
1073 | |
1074 if (u->peer.sockaddr) { | |
1075 u->peer.free(&u->peer, u->peer.data, NGX_PEER_FAILED); | |
1076 u->peer.sockaddr = NULL; | |
1077 } | |
1078 | |
1079 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
1080 | |
1081 timeout = pscf->next_upstream_timeout; | |
1082 | |
1083 if (u->peer.tries == 0 | |
1084 || !pscf->next_upstream | |
1085 || (timeout && ngx_current_msec - u->peer.start_time >= timeout)) | |
1086 { | |
1087 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
1088 return; | |
1089 } | |
1090 | |
1091 pc = u->peer.connection; | |
1092 | |
1093 if (pc) { | |
1094 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
1095 "close proxy upstream connection: %d", pc->fd); | |
1096 | |
1097 #if (NGX_STREAM_SSL) | |
1098 if (pc->ssl) { | |
1099 pc->ssl->no_wait_shutdown = 1; | |
1100 pc->ssl->no_send_shutdown = 1; | |
1101 | |
1102 (void) ngx_ssl_shutdown(pc); | |
1103 } | |
1104 #endif | |
1105 | |
1106 ngx_close_connection(pc); | |
1107 u->peer.connection = NULL; | |
1108 } | |
1109 | |
1110 ngx_stream_proxy_connect(s); | |
1111 } | |
1112 | |
1113 | |
1114 static void | |
1115 ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc) | |
1116 { | |
1117 ngx_connection_t *pc; | |
1118 ngx_stream_upstream_t *u; | |
1119 | |
1120 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
1121 "finalize stream proxy: %i", rc); | |
1122 | |
1123 u = s->upstream; | |
1124 | |
1125 if (u == NULL) { | |
1126 goto noupstream; | |
1127 } | |
1128 | |
1129 if (u->peer.free && u->peer.sockaddr) { | |
1130 u->peer.free(&u->peer, u->peer.data, 0); | |
1131 u->peer.sockaddr = NULL; | |
1132 } | |
1133 | |
1134 pc = u->peer.connection; | |
1135 | |
1136 if (pc) { | |
1137 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
1138 "close stream proxy upstream connection: %d", pc->fd); | |
1139 | |
1140 #if (NGX_STREAM_SSL) | |
1141 if (pc->ssl) { | |
1142 pc->ssl->no_wait_shutdown = 1; | |
1143 (void) ngx_ssl_shutdown(pc); | |
1144 } | |
1145 #endif | |
1146 | |
1147 ngx_close_connection(pc); | |
1148 u->peer.connection = NULL; | |
1149 } | |
1150 | |
1151 noupstream: | |
1152 | |
1153 ngx_stream_close_connection(s->connection); | |
1154 } | |
1155 | |
1156 | |
1157 static u_char * | |
1158 ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
1159 { | |
1160 u_char *p; | |
1161 ngx_connection_t *pc; | |
1162 ngx_stream_session_t *s; | |
1163 ngx_stream_upstream_t *u; | |
1164 | |
1165 s = log->data; | |
1166 | |
1167 u = s->upstream; | |
1168 | |
1169 p = buf; | |
1170 | |
1171 if (u->peer.name) { | |
1172 p = ngx_snprintf(p, len, ", upstream: \"%V\"", u->peer.name); | |
1173 len -= p - buf; | |
1174 } | |
1175 | |
1176 pc = u->peer.connection; | |
1177 | |
1178 p = ngx_snprintf(p, len, | |
1179 ", bytes from/to client:%O/%O" | |
1180 ", bytes from/to upstream:%O/%O", | |
1181 s->received, s->connection->sent, | |
1182 u->received, pc ? pc->sent : 0); | |
1183 | |
1184 return p; | |
1185 } | |
1186 | |
1187 | |
1188 static void * | |
1189 ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf) | |
1190 { | |
1191 ngx_stream_proxy_srv_conf_t *conf; | |
1192 | |
1193 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_proxy_srv_conf_t)); | |
1194 if (conf == NULL) { | |
1195 return NULL; | |
1196 } | |
1197 | |
1198 /* | |
1199 * set by ngx_pcalloc(): | |
1200 * | |
1201 * conf->ssl_protocols = 0; | |
1202 * conf->ssl_ciphers = { 0, NULL }; | |
1203 * conf->ssl_name = { 0, NULL }; | |
1204 * conf->ssl_trusted_certificate = { 0, NULL }; | |
1205 * conf->ssl_crl = { 0, NULL }; | |
1206 * conf->ssl_certificate = { 0, NULL }; | |
1207 * conf->ssl_certificate_key = { 0, NULL }; | |
1208 * | |
1209 * conf->ssl = NULL; | |
1210 * conf->upstream = NULL; | |
1211 */ | |
1212 | |
1213 conf->connect_timeout = NGX_CONF_UNSET_MSEC; | |
1214 conf->timeout = NGX_CONF_UNSET_MSEC; | |
1215 conf->next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
1216 conf->downstream_buf_size = NGX_CONF_UNSET_SIZE; | |
1217 conf->upstream_buf_size = NGX_CONF_UNSET_SIZE; | |
1218 conf->next_upstream_tries = NGX_CONF_UNSET_UINT; | |
1219 conf->next_upstream = NGX_CONF_UNSET; | |
6184
fa663739e115
Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents:
6183
diff
changeset
|
1220 conf->proxy_protocol = NGX_CONF_UNSET; |
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1221 conf->local = NGX_CONF_UNSET_PTR; |
6115 | 1222 |
1223 #if (NGX_STREAM_SSL) | |
1224 conf->ssl_enable = NGX_CONF_UNSET; | |
1225 conf->ssl_session_reuse = NGX_CONF_UNSET; | |
1226 conf->ssl_server_name = NGX_CONF_UNSET; | |
1227 conf->ssl_verify = NGX_CONF_UNSET; | |
1228 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
1229 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
1230 #endif | |
1231 | |
1232 return conf; | |
1233 } | |
1234 | |
1235 | |
1236 static char * | |
1237 ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
1238 { | |
1239 ngx_stream_proxy_srv_conf_t *prev = parent; | |
1240 ngx_stream_proxy_srv_conf_t *conf = child; | |
1241 | |
1242 ngx_conf_merge_msec_value(conf->connect_timeout, | |
1243 prev->connect_timeout, 60000); | |
1244 | |
1245 ngx_conf_merge_msec_value(conf->timeout, | |
1246 prev->timeout, 10 * 60000); | |
1247 | |
1248 ngx_conf_merge_msec_value(conf->next_upstream_timeout, | |
1249 prev->next_upstream_timeout, 0); | |
1250 | |
1251 ngx_conf_merge_size_value(conf->downstream_buf_size, | |
1252 prev->downstream_buf_size, 16384); | |
1253 | |
1254 ngx_conf_merge_size_value(conf->upstream_buf_size, | |
1255 prev->upstream_buf_size, 16384); | |
1256 | |
1257 ngx_conf_merge_uint_value(conf->next_upstream_tries, | |
1258 prev->next_upstream_tries, 0); | |
1259 | |
1260 ngx_conf_merge_value(conf->next_upstream, prev->next_upstream, 1); | |
1261 | |
6184
fa663739e115
Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents:
6183
diff
changeset
|
1262 ngx_conf_merge_value(conf->proxy_protocol, prev->proxy_protocol, 0); |
fa663739e115
Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents:
6183
diff
changeset
|
1263 |
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1264 ngx_conf_merge_ptr_value(conf->local, prev->local, NULL); |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1265 |
6115 | 1266 #if (NGX_STREAM_SSL) |
1267 | |
1268 ngx_conf_merge_value(conf->ssl_enable, prev->ssl_enable, 0); | |
1269 | |
1270 ngx_conf_merge_value(conf->ssl_session_reuse, | |
1271 prev->ssl_session_reuse, 1); | |
1272 | |
1273 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
|
1274 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 |
b2899e7d0ef8
Disabled SSLv3 by default (ticket #653).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6124
diff
changeset
|
1275 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); |
6115 | 1276 |
1277 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, "DEFAULT"); | |
1278 | |
1279 ngx_conf_merge_str_value(conf->ssl_name, prev->ssl_name, ""); | |
1280 | |
1281 ngx_conf_merge_value(conf->ssl_server_name, prev->ssl_server_name, 0); | |
1282 | |
1283 ngx_conf_merge_value(conf->ssl_verify, prev->ssl_verify, 0); | |
1284 | |
1285 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
1286 prev->ssl_verify_depth, 1); | |
1287 | |
1288 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
1289 prev->ssl_trusted_certificate, ""); | |
1290 | |
1291 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
1292 | |
1293 ngx_conf_merge_str_value(conf->ssl_certificate, | |
1294 prev->ssl_certificate, ""); | |
1295 | |
1296 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
1297 prev->ssl_certificate_key, ""); | |
1298 | |
1299 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
1300 | |
1301 if (conf->ssl_enable && ngx_stream_proxy_set_ssl(cf, conf) != NGX_OK) { | |
1302 return NGX_CONF_ERROR; | |
1303 } | |
1304 | |
1305 #endif | |
1306 | |
1307 return NGX_CONF_OK; | |
1308 } | |
1309 | |
1310 | |
1311 #if (NGX_STREAM_SSL) | |
1312 | |
1313 static ngx_int_t | |
1314 ngx_stream_proxy_set_ssl(ngx_conf_t *cf, ngx_stream_proxy_srv_conf_t *pscf) | |
1315 { | |
1316 ngx_pool_cleanup_t *cln; | |
1317 | |
1318 pscf->ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
1319 if (pscf->ssl == NULL) { | |
1320 return NGX_ERROR; | |
1321 } | |
1322 | |
1323 pscf->ssl->log = cf->log; | |
1324 | |
1325 if (ngx_ssl_create(pscf->ssl, pscf->ssl_protocols, NULL) != NGX_OK) { | |
1326 return NGX_ERROR; | |
1327 } | |
1328 | |
1329 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
1330 if (cln == NULL) { | |
1331 return NGX_ERROR; | |
1332 } | |
1333 | |
1334 cln->handler = ngx_ssl_cleanup_ctx; | |
1335 cln->data = pscf->ssl; | |
1336 | |
1337 if (pscf->ssl_certificate.len) { | |
1338 | |
1339 if (pscf->ssl_certificate_key.len == 0) { | |
1340 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1341 "no \"proxy_ssl_certificate_key\" is defined " | |
1342 "for certificate \"%V\"", &pscf->ssl_certificate); | |
1343 return NGX_ERROR; | |
1344 } | |
1345 | |
1346 if (ngx_ssl_certificate(cf, pscf->ssl, &pscf->ssl_certificate, | |
1347 &pscf->ssl_certificate_key, pscf->ssl_passwords) | |
1348 != NGX_OK) | |
1349 { | |
1350 return NGX_ERROR; | |
1351 } | |
1352 } | |
1353 | |
1354 if (SSL_CTX_set_cipher_list(pscf->ssl->ctx, | |
1355 (const char *) pscf->ssl_ciphers.data) | |
1356 == 0) | |
1357 { | |
1358 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
1359 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
1360 &pscf->ssl_ciphers); | |
1361 return NGX_ERROR; | |
1362 } | |
1363 | |
1364 if (pscf->ssl_verify) { | |
1365 if (pscf->ssl_trusted_certificate.len == 0) { | |
1366 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1367 "no proxy_ssl_trusted_certificate for proxy_ssl_verify"); | |
1368 return NGX_ERROR; | |
1369 } | |
1370 | |
1371 if (ngx_ssl_trusted_certificate(cf, pscf->ssl, | |
1372 &pscf->ssl_trusted_certificate, | |
1373 pscf->ssl_verify_depth) | |
1374 != NGX_OK) | |
1375 { | |
1376 return NGX_ERROR; | |
1377 } | |
1378 | |
1379 if (ngx_ssl_crl(cf, pscf->ssl, &pscf->ssl_crl) != NGX_OK) { | |
1380 return NGX_ERROR; | |
1381 } | |
1382 } | |
1383 | |
1384 return NGX_OK; | |
1385 } | |
1386 | |
1387 #endif | |
1388 | |
1389 | |
1390 static char * | |
1391 ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1392 { | |
1393 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
1394 | |
1395 ngx_url_t u; | |
1396 ngx_str_t *value, *url; | |
1397 ngx_stream_core_srv_conf_t *cscf; | |
1398 | |
1399 if (pscf->upstream) { | |
1400 return "is duplicate"; | |
1401 } | |
1402 | |
1403 cscf = ngx_stream_conf_get_module_srv_conf(cf, ngx_stream_core_module); | |
1404 | |
1405 cscf->handler = ngx_stream_proxy_handler; | |
1406 | |
1407 value = cf->args->elts; | |
1408 | |
1409 url = &value[1]; | |
1410 | |
1411 ngx_memzero(&u, sizeof(ngx_url_t)); | |
1412 | |
1413 u.url = *url; | |
1414 u.no_resolve = 1; | |
1415 | |
1416 pscf->upstream = ngx_stream_upstream_add(cf, &u, 0); | |
1417 if (pscf->upstream == NULL) { | |
1418 return NGX_CONF_ERROR; | |
1419 } | |
1420 | |
1421 return NGX_CONF_OK; | |
1422 } | |
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1423 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1424 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1425 static char * |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1426 ngx_stream_proxy_bind(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1427 { |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
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parents:
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|
1428 ngx_stream_proxy_srv_conf_t *pscf = conf; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1429 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1430 ngx_int_t rc; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1431 ngx_str_t *value; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1432 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
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parents:
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1433 if (pscf->local != NGX_CONF_UNSET_PTR) { |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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1434 return "is duplicate"; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1435 } |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1436 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1437 value = cf->args->elts; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1438 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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1439 if (ngx_strcmp(value[1].data, "off") == 0) { |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
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1440 pscf->local = NULL; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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1441 return NGX_CONF_OK; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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1442 } |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1443 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1444 pscf->local = ngx_palloc(cf->pool, sizeof(ngx_addr_t)); |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1445 if (pscf->local == NULL) { |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
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1446 return NGX_CONF_ERROR; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1447 } |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1448 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1449 rc = ngx_parse_addr(cf->pool, pscf->local, value[1].data, value[1].len); |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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1450 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
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parents:
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1451 switch (rc) { |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1452 case NGX_OK: |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1453 pscf->local->name = value[1]; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1454 return NGX_CONF_OK; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1455 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1456 case NGX_DECLINED: |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1457 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1458 "invalid address \"%V\"", &value[1]); |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1459 /* fall through */ |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1460 |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1461 default: |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1462 return NGX_CONF_ERROR; |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1463 } |
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
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|
1464 } |