Mercurial > hg > nginx
annotate src/stream/ngx_stream_proxy_module.c @ 6183:4dcffe43a7ea
Stream: the "proxy_bind" directive.
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Tue, 16 Jun 2015 09:02:45 +0300 |
| parents | 68c106e6fa0a |
| children | fa663739e115 |
| 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; | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
24 ngx_addr_t *local; |
| 6115 | 25 |
| 26 #if (NGX_STREAM_SSL) | |
| 27 ngx_flag_t ssl_enable; | |
| 28 ngx_flag_t ssl_session_reuse; | |
| 29 ngx_uint_t ssl_protocols; | |
| 30 ngx_str_t ssl_ciphers; | |
| 31 ngx_str_t ssl_name; | |
| 32 ngx_flag_t ssl_server_name; | |
| 33 | |
| 34 ngx_flag_t ssl_verify; | |
| 35 ngx_uint_t ssl_verify_depth; | |
| 36 ngx_str_t ssl_trusted_certificate; | |
| 37 ngx_str_t ssl_crl; | |
| 38 ngx_str_t ssl_certificate; | |
| 39 ngx_str_t ssl_certificate_key; | |
| 40 ngx_array_t *ssl_passwords; | |
| 41 | |
| 42 ngx_ssl_t *ssl; | |
| 43 #endif | |
| 44 | |
| 45 ngx_stream_upstream_srv_conf_t *upstream; | |
| 46 } ngx_stream_proxy_srv_conf_t; | |
| 47 | |
| 48 | |
| 49 static void ngx_stream_proxy_handler(ngx_stream_session_t *s); | |
| 50 static void ngx_stream_proxy_connect(ngx_stream_session_t *s); | |
| 51 static void ngx_stream_proxy_init_upstream(ngx_stream_session_t *s); | |
| 52 static void ngx_stream_proxy_upstream_handler(ngx_event_t *ev); | |
| 53 static void ngx_stream_proxy_downstream_handler(ngx_event_t *ev); | |
| 54 static void ngx_stream_proxy_connect_handler(ngx_event_t *ev); | |
| 55 static ngx_int_t ngx_stream_proxy_test_connect(ngx_connection_t *c); | |
| 56 static ngx_int_t ngx_stream_proxy_process(ngx_stream_session_t *s, | |
| 57 ngx_uint_t from_upstream, ngx_uint_t do_write); | |
| 58 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s); | |
| 59 static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc); | |
| 60 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, | |
| 61 size_t len); | |
| 62 | |
| 63 static void *ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf); | |
| 64 static char *ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
| 65 void *child); | |
| 66 static char *ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 67 void *conf); | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
68 static char *ngx_stream_proxy_bind(ngx_conf_t *cf, ngx_command_t *cmd, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
69 void *conf); |
| 6115 | 70 |
| 71 #if (NGX_STREAM_SSL) | |
| 72 | |
| 73 static char *ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, | |
| 74 ngx_command_t *cmd, void *conf); | |
| 75 static void ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s); | |
| 76 static void ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc); | |
| 77 static ngx_int_t ngx_stream_proxy_ssl_name(ngx_stream_session_t *s); | |
| 78 static ngx_int_t ngx_stream_proxy_set_ssl(ngx_conf_t *cf, | |
| 79 ngx_stream_proxy_srv_conf_t *pscf); | |
| 80 | |
| 81 | |
| 82 static ngx_conf_bitmask_t ngx_stream_proxy_ssl_protocols[] = { | |
| 83 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 84 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 85 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 86 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 87 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 88 { ngx_null_string, 0 } | |
| 89 }; | |
| 90 | |
| 91 #endif | |
| 92 | |
| 93 | |
| 94 static ngx_command_t ngx_stream_proxy_commands[] = { | |
| 95 | |
| 96 { ngx_string("proxy_pass"), | |
| 97 NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 98 ngx_stream_proxy_pass, | |
| 99 NGX_STREAM_SRV_CONF_OFFSET, | |
| 100 0, | |
| 101 NULL }, | |
| 102 | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
103 { ngx_string("proxy_bind"), |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
104 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
105 ngx_stream_proxy_bind, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
106 NGX_STREAM_SRV_CONF_OFFSET, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
107 0, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
108 NULL }, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
109 |
| 6115 | 110 { ngx_string("proxy_connect_timeout"), |
| 111 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 112 ngx_conf_set_msec_slot, | |
| 113 NGX_STREAM_SRV_CONF_OFFSET, | |
| 114 offsetof(ngx_stream_proxy_srv_conf_t, connect_timeout), | |
| 115 NULL }, | |
| 116 | |
| 117 { ngx_string("proxy_timeout"), | |
| 118 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 119 ngx_conf_set_msec_slot, | |
| 120 NGX_STREAM_SRV_CONF_OFFSET, | |
| 121 offsetof(ngx_stream_proxy_srv_conf_t, timeout), | |
| 122 NULL }, | |
| 123 | |
| 124 { ngx_string("proxy_downstream_buffer"), | |
| 125 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 126 ngx_conf_set_size_slot, | |
| 127 NGX_STREAM_SRV_CONF_OFFSET, | |
| 128 offsetof(ngx_stream_proxy_srv_conf_t, downstream_buf_size), | |
| 129 NULL }, | |
| 130 | |
| 131 { ngx_string("proxy_upstream_buffer"), | |
| 132 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 133 ngx_conf_set_size_slot, | |
| 134 NGX_STREAM_SRV_CONF_OFFSET, | |
| 135 offsetof(ngx_stream_proxy_srv_conf_t, upstream_buf_size), | |
| 136 NULL }, | |
| 137 | |
| 138 { ngx_string("proxy_next_upstream"), | |
| 139 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 140 ngx_conf_set_flag_slot, | |
| 141 NGX_STREAM_SRV_CONF_OFFSET, | |
| 142 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream), | |
| 143 NULL }, | |
| 144 | |
| 145 { ngx_string("proxy_next_upstream_tries"), | |
| 146 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 147 ngx_conf_set_num_slot, | |
| 148 NGX_STREAM_SRV_CONF_OFFSET, | |
| 149 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_tries), | |
| 150 NULL }, | |
| 151 | |
| 152 { ngx_string("proxy_next_upstream_timeout"), | |
| 153 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 154 ngx_conf_set_msec_slot, | |
| 155 NGX_STREAM_SRV_CONF_OFFSET, | |
| 156 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_timeout), | |
| 157 NULL }, | |
| 158 | |
| 159 #if (NGX_STREAM_SSL) | |
| 160 | |
| 161 { ngx_string("proxy_ssl"), | |
| 162 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 163 ngx_conf_set_flag_slot, | |
| 164 NGX_STREAM_SRV_CONF_OFFSET, | |
| 165 offsetof(ngx_stream_proxy_srv_conf_t, ssl_enable), | |
| 166 NULL }, | |
| 167 | |
| 168 { ngx_string("proxy_ssl_session_reuse"), | |
| 169 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 170 ngx_conf_set_flag_slot, | |
| 171 NGX_STREAM_SRV_CONF_OFFSET, | |
| 172 offsetof(ngx_stream_proxy_srv_conf_t, ssl_session_reuse), | |
| 173 NULL }, | |
| 174 | |
| 175 { ngx_string("proxy_ssl_protocols"), | |
| 176 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
| 177 ngx_conf_set_bitmask_slot, | |
| 178 NGX_STREAM_SRV_CONF_OFFSET, | |
| 179 offsetof(ngx_stream_proxy_srv_conf_t, ssl_protocols), | |
| 180 &ngx_stream_proxy_ssl_protocols }, | |
| 181 | |
| 182 { ngx_string("proxy_ssl_ciphers"), | |
| 183 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 184 ngx_conf_set_str_slot, | |
| 185 NGX_STREAM_SRV_CONF_OFFSET, | |
| 186 offsetof(ngx_stream_proxy_srv_conf_t, ssl_ciphers), | |
| 187 NULL }, | |
| 188 | |
| 189 { ngx_string("proxy_ssl_name"), | |
| 190 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 191 ngx_conf_set_str_slot, | |
| 192 NGX_STREAM_SRV_CONF_OFFSET, | |
| 193 offsetof(ngx_stream_proxy_srv_conf_t, ssl_name), | |
| 194 NULL }, | |
| 195 | |
| 196 { ngx_string("proxy_ssl_server_name"), | |
| 197 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 198 ngx_conf_set_flag_slot, | |
| 199 NGX_STREAM_SRV_CONF_OFFSET, | |
| 200 offsetof(ngx_stream_proxy_srv_conf_t, ssl_server_name), | |
| 201 NULL }, | |
| 202 | |
| 203 { ngx_string("proxy_ssl_verify"), | |
| 204 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 205 ngx_conf_set_flag_slot, | |
| 206 NGX_STREAM_SRV_CONF_OFFSET, | |
| 207 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify), | |
| 208 NULL }, | |
| 209 | |
| 210 { ngx_string("proxy_ssl_verify_depth"), | |
| 211 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 212 ngx_conf_set_num_slot, | |
| 213 NGX_STREAM_SRV_CONF_OFFSET, | |
| 214 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify_depth), | |
| 215 NULL }, | |
| 216 | |
| 217 { ngx_string("proxy_ssl_trusted_certificate"), | |
| 218 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 219 ngx_conf_set_str_slot, | |
| 220 NGX_STREAM_SRV_CONF_OFFSET, | |
| 221 offsetof(ngx_stream_proxy_srv_conf_t, ssl_trusted_certificate), | |
| 222 NULL }, | |
| 223 | |
| 224 { ngx_string("proxy_ssl_crl"), | |
| 225 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 226 ngx_conf_set_str_slot, | |
| 227 NGX_STREAM_SRV_CONF_OFFSET, | |
| 228 offsetof(ngx_stream_proxy_srv_conf_t, ssl_crl), | |
| 229 NULL }, | |
| 230 | |
| 231 { ngx_string("proxy_ssl_certificate"), | |
| 232 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 233 ngx_conf_set_str_slot, | |
| 234 NGX_STREAM_SRV_CONF_OFFSET, | |
| 235 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate), | |
| 236 NULL }, | |
| 237 | |
| 238 { ngx_string("proxy_ssl_certificate_key"), | |
| 239 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 240 ngx_conf_set_str_slot, | |
| 241 NGX_STREAM_SRV_CONF_OFFSET, | |
| 242 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate_key), | |
| 243 NULL }, | |
| 244 | |
| 245 { ngx_string("proxy_ssl_password_file"), | |
| 246 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 247 ngx_stream_proxy_ssl_password_file, | |
| 248 NGX_STREAM_SRV_CONF_OFFSET, | |
| 249 0, | |
| 250 NULL }, | |
| 251 | |
| 252 #endif | |
| 253 | |
| 254 ngx_null_command | |
| 255 }; | |
| 256 | |
| 257 | |
| 258 static ngx_stream_module_t ngx_stream_proxy_module_ctx = { | |
|
6174
68c106e6fa0a
Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
6157
diff
changeset
|
259 NULL, /* postconfiguration */ |
|
68c106e6fa0a
Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
6157
diff
changeset
|
260 |
| 6115 | 261 NULL, /* create main configuration */ |
| 262 NULL, /* init main configuration */ | |
| 263 | |
| 264 ngx_stream_proxy_create_srv_conf, /* create server configuration */ | |
| 265 ngx_stream_proxy_merge_srv_conf /* merge server configuration */ | |
| 266 }; | |
| 267 | |
| 268 | |
| 269 ngx_module_t ngx_stream_proxy_module = { | |
| 270 NGX_MODULE_V1, | |
| 271 &ngx_stream_proxy_module_ctx, /* module context */ | |
| 272 ngx_stream_proxy_commands, /* module directives */ | |
| 273 NGX_STREAM_MODULE, /* module type */ | |
| 274 NULL, /* init master */ | |
| 275 NULL, /* init module */ | |
| 276 NULL, /* init process */ | |
| 277 NULL, /* init thread */ | |
| 278 NULL, /* exit thread */ | |
| 279 NULL, /* exit process */ | |
| 280 NULL, /* exit master */ | |
| 281 NGX_MODULE_V1_PADDING | |
| 282 }; | |
| 283 | |
| 284 | |
| 285 static void | |
| 286 ngx_stream_proxy_handler(ngx_stream_session_t *s) | |
| 287 { | |
| 288 u_char *p; | |
| 289 ngx_connection_t *c; | |
| 290 ngx_stream_upstream_t *u; | |
| 291 ngx_stream_proxy_srv_conf_t *pscf; | |
| 292 ngx_stream_upstream_srv_conf_t *uscf; | |
| 293 | |
| 294 c = s->connection; | |
| 295 | |
| 296 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 297 | |
| 298 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
| 299 "proxy connection handler"); | |
| 300 | |
| 301 u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t)); | |
| 302 if (u == NULL) { | |
| 303 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 304 return; | |
| 305 } | |
| 306 | |
| 307 s->upstream = u; | |
| 308 | |
| 309 s->log_handler = ngx_stream_proxy_log_error; | |
| 310 | |
| 311 u->peer.log = c->log; | |
| 312 u->peer.log_error = NGX_ERROR_ERR; | |
| 313 | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
314 u->peer.local = pscf->local; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
315 |
| 6115 | 316 uscf = pscf->upstream; |
| 317 | |
| 318 if (uscf->peer.init(s, uscf) != NGX_OK) { | |
| 319 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 320 return; | |
| 321 } | |
| 322 | |
| 323 u->peer.start_time = ngx_current_msec; | |
| 324 | |
| 325 if (pscf->next_upstream_tries | |
| 326 && u->peer.tries > pscf->next_upstream_tries) | |
| 327 { | |
| 328 u->peer.tries = pscf->next_upstream_tries; | |
| 329 } | |
| 330 | |
| 331 p = ngx_pnalloc(c->pool, pscf->downstream_buf_size); | |
| 332 if (p == NULL) { | |
| 333 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 334 return; | |
| 335 } | |
| 336 | |
| 337 u->downstream_buf.start = p; | |
| 338 u->downstream_buf.end = p + pscf->downstream_buf_size; | |
| 339 u->downstream_buf.pos = p; | |
| 340 u->downstream_buf.last = p; | |
| 341 | |
| 342 c->write->handler = ngx_stream_proxy_downstream_handler; | |
| 343 c->read->handler = ngx_stream_proxy_downstream_handler; | |
| 344 | |
| 345 if (ngx_stream_proxy_process(s, 0, 0) != NGX_OK) { | |
| 346 return; | |
| 347 } | |
| 348 | |
| 349 ngx_stream_proxy_connect(s); | |
| 350 } | |
| 351 | |
| 352 | |
| 353 static void | |
| 354 ngx_stream_proxy_connect(ngx_stream_session_t *s) | |
| 355 { | |
| 356 ngx_int_t rc; | |
| 357 ngx_connection_t *c, *pc; | |
| 358 ngx_stream_upstream_t *u; | |
| 359 ngx_stream_proxy_srv_conf_t *pscf; | |
| 360 | |
| 361 c = s->connection; | |
| 362 | |
| 363 c->log->action = "connecting to upstream"; | |
| 364 | |
| 365 u = s->upstream; | |
| 366 | |
| 367 rc = ngx_event_connect_peer(&u->peer); | |
| 368 | |
| 369 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc); | |
| 370 | |
| 371 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 372 | |
| 373 if (rc == NGX_ERROR) { | |
| 374 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 375 return; | |
| 376 } | |
| 377 | |
| 378 if (rc == NGX_BUSY) { | |
| 379 ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams"); | |
| 380 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 381 return; | |
| 382 } | |
| 383 | |
| 384 if (rc == NGX_DECLINED) { | |
| 385 ngx_stream_proxy_next_upstream(s); | |
| 386 return; | |
| 387 } | |
| 388 | |
| 389 /* rc == NGX_OK || rc == NGX_AGAIN || rc == NGX_DONE */ | |
| 390 | |
| 391 pc = u->peer.connection; | |
| 392 | |
| 393 pc->data = s; | |
| 394 pc->log = c->log; | |
| 395 pc->pool = c->pool; | |
| 396 pc->read->log = c->log; | |
| 397 pc->write->log = c->log; | |
| 398 | |
| 399 if (rc != NGX_AGAIN) { | |
| 400 ngx_stream_proxy_init_upstream(s); | |
| 401 return; | |
| 402 } | |
| 403 | |
| 404 pc->read->handler = ngx_stream_proxy_connect_handler; | |
| 405 pc->write->handler = ngx_stream_proxy_connect_handler; | |
| 406 | |
| 407 ngx_add_timer(pc->write, pscf->connect_timeout); | |
| 408 } | |
| 409 | |
| 410 | |
| 411 static void | |
| 412 ngx_stream_proxy_init_upstream(ngx_stream_session_t *s) | |
| 413 { | |
| 414 u_char *p; | |
| 415 ngx_connection_t *c, *pc; | |
| 416 ngx_log_handler_pt handler; | |
| 417 ngx_stream_upstream_t *u; | |
| 418 ngx_stream_proxy_srv_conf_t *pscf; | |
| 419 | |
| 420 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 421 | |
| 422 u = s->upstream; | |
| 423 | |
| 424 pc = u->peer.connection; | |
| 425 | |
| 426 #if (NGX_STREAM_SSL) | |
| 427 if (pscf->ssl && pc->ssl == NULL) { | |
| 428 ngx_stream_proxy_ssl_init_connection(s); | |
| 429 return; | |
| 430 } | |
| 431 #endif | |
| 432 | |
| 433 c = s->connection; | |
| 434 | |
| 435 if (c->log->log_level >= NGX_LOG_INFO) { | |
| 436 ngx_str_t s; | |
| 437 u_char addr[NGX_SOCKADDR_STRLEN]; | |
| 438 | |
| 439 s.len = NGX_SOCKADDR_STRLEN; | |
| 440 s.data = addr; | |
| 441 | |
| 442 if (ngx_connection_local_sockaddr(pc, &s, 1) == NGX_OK) { | |
| 443 handler = c->log->handler; | |
| 444 c->log->handler = NULL; | |
| 445 | |
| 446 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxy %V connected to %V", | |
| 447 &s, u->peer.name); | |
| 448 | |
| 449 c->log->handler = handler; | |
| 450 } | |
| 451 } | |
| 452 | |
| 453 c->log->action = "proxying connection"; | |
| 454 | |
| 455 p = ngx_pnalloc(c->pool, pscf->upstream_buf_size); | |
| 456 if (p == NULL) { | |
| 457 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 458 return; | |
| 459 } | |
| 460 | |
| 461 u->upstream_buf.start = p; | |
| 462 u->upstream_buf.end = p + pscf->upstream_buf_size; | |
| 463 u->upstream_buf.pos = p; | |
| 464 u->upstream_buf.last = p; | |
| 465 | |
| 466 pc->read->handler = ngx_stream_proxy_upstream_handler; | |
| 467 pc->write->handler = ngx_stream_proxy_upstream_handler; | |
| 468 | |
| 469 if (ngx_stream_proxy_process(s, 1, 0) != NGX_OK) { | |
| 470 return; | |
| 471 } | |
| 472 | |
| 473 ngx_stream_proxy_process(s, 0, 1); | |
| 474 } | |
| 475 | |
| 476 | |
| 477 #if (NGX_STREAM_SSL) | |
| 478 | |
| 479 static char * | |
| 480 ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 481 void *conf) | |
| 482 { | |
| 483 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
| 484 | |
| 485 ngx_str_t *value; | |
| 486 | |
| 487 if (pscf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 488 return "is duplicate"; | |
| 489 } | |
| 490 | |
| 491 value = cf->args->elts; | |
| 492 | |
| 493 pscf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 494 | |
| 495 if (pscf->ssl_passwords == NULL) { | |
| 496 return NGX_CONF_ERROR; | |
| 497 } | |
| 498 | |
| 499 return NGX_CONF_OK; | |
| 500 } | |
| 501 | |
| 502 | |
| 503 static void | |
| 504 ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s) | |
| 505 { | |
| 506 ngx_int_t rc; | |
| 507 ngx_connection_t *pc; | |
| 508 ngx_stream_upstream_t *u; | |
| 509 ngx_stream_proxy_srv_conf_t *pscf; | |
| 510 | |
| 511 u = s->upstream; | |
| 512 | |
| 513 pc = u->peer.connection; | |
| 514 | |
| 515 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 516 | |
| 517 if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 518 != NGX_OK) | |
| 519 { | |
| 520 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 521 return; | |
| 522 } | |
| 523 | |
| 524 if (pscf->ssl_server_name || pscf->ssl_verify) { | |
| 525 if (ngx_stream_proxy_ssl_name(s) != NGX_OK) { | |
| 526 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 527 return; | |
| 528 } | |
| 529 } | |
| 530 | |
| 531 if (pscf->ssl_session_reuse) { | |
| 532 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { | |
| 533 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 534 return; | |
| 535 } | |
| 536 } | |
| 537 | |
| 538 s->connection->log->action = "SSL handshaking to upstream"; | |
| 539 | |
| 540 rc = ngx_ssl_handshake(pc); | |
| 541 | |
| 542 if (rc == NGX_AGAIN) { | |
| 543 | |
| 544 if (!pc->write->timer_set) { | |
| 545 ngx_add_timer(pc->write, pscf->connect_timeout); | |
| 546 } | |
| 547 | |
| 548 pc->ssl->handler = ngx_stream_proxy_ssl_handshake; | |
| 549 return; | |
| 550 } | |
| 551 | |
| 552 ngx_stream_proxy_ssl_handshake(pc); | |
| 553 } | |
| 554 | |
| 555 | |
| 556 static void | |
| 557 ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc) | |
| 558 { | |
| 559 long rc; | |
| 560 ngx_stream_session_t *s; | |
| 561 ngx_stream_upstream_t *u; | |
| 562 ngx_stream_proxy_srv_conf_t *pscf; | |
| 563 | |
| 564 s = pc->data; | |
| 565 | |
| 566 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 567 | |
| 568 if (pc->ssl->handshaked) { | |
| 569 | |
| 570 if (pscf->ssl_verify) { | |
| 571 rc = SSL_get_verify_result(pc->ssl->connection); | |
| 572 | |
| 573 if (rc != X509_V_OK) { | |
| 574 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
| 575 "upstream SSL certificate verify error: (%l:%s)", | |
| 576 rc, X509_verify_cert_error_string(rc)); | |
| 577 goto failed; | |
| 578 } | |
| 579 | |
| 580 u = s->upstream; | |
| 581 | |
| 582 if (ngx_ssl_check_host(pc, &u->ssl_name) != NGX_OK) { | |
| 583 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
| 584 "upstream SSL certificate does not match \"%V\"", | |
| 585 &u->ssl_name); | |
| 586 goto failed; | |
| 587 } | |
| 588 } | |
| 589 | |
| 590 if (pscf->ssl_session_reuse) { | |
| 591 u = s->upstream; | |
| 592 u->peer.save_session(&u->peer, u->peer.data); | |
| 593 } | |
| 594 | |
| 595 ngx_stream_proxy_init_upstream(s); | |
| 596 | |
| 597 return; | |
| 598 } | |
| 599 | |
| 600 failed: | |
| 601 | |
| 602 ngx_stream_proxy_next_upstream(s); | |
| 603 } | |
| 604 | |
| 605 | |
| 606 static ngx_int_t | |
| 607 ngx_stream_proxy_ssl_name(ngx_stream_session_t *s) | |
| 608 { | |
| 609 u_char *p, *last; | |
| 610 ngx_str_t name; | |
| 611 ngx_stream_upstream_t *u; | |
| 612 ngx_stream_proxy_srv_conf_t *pscf; | |
| 613 | |
| 614 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 615 | |
| 616 u = s->upstream; | |
| 617 | |
| 618 name = pscf->ssl_name; | |
| 619 | |
| 620 if (name.len == 0) { | |
| 621 name = pscf->upstream->host; | |
| 622 } | |
| 623 | |
| 624 if (name.len == 0) { | |
| 625 goto done; | |
| 626 } | |
| 627 | |
| 628 /* | |
| 629 * ssl name here may contain port, strip it for compatibility | |
| 630 * with the http module | |
| 631 */ | |
| 632 | |
| 633 p = name.data; | |
| 634 last = name.data + name.len; | |
| 635 | |
| 636 if (*p == '[') { | |
| 637 p = ngx_strlchr(p, last, ']'); | |
| 638 | |
| 639 if (p == NULL) { | |
| 640 p = name.data; | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 p = ngx_strlchr(p, last, ':'); | |
| 645 | |
| 646 if (p != NULL) { | |
| 647 name.len = p - name.data; | |
| 648 } | |
| 649 | |
| 650 if (!pscf->ssl_server_name) { | |
| 651 goto done; | |
| 652 } | |
| 653 | |
| 654 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME | |
| 655 | |
| 656 /* as per RFC 6066, literal IPv4 and IPv6 addresses are not permitted */ | |
| 657 | |
| 658 if (name.len == 0 || *name.data == '[') { | |
| 659 goto done; | |
| 660 } | |
| 661 | |
| 662 if (ngx_inet_addr(name.data, name.len) != INADDR_NONE) { | |
| 663 goto done; | |
| 664 } | |
| 665 | |
| 666 /* | |
| 667 * SSL_set_tlsext_host_name() needs a null-terminated string, | |
| 668 * hence we explicitly null-terminate name here | |
| 669 */ | |
| 670 | |
| 671 p = ngx_pnalloc(s->connection->pool, name.len + 1); | |
| 672 if (p == NULL) { | |
| 673 return NGX_ERROR; | |
| 674 } | |
| 675 | |
| 676 (void) ngx_cpystrn(p, name.data, name.len + 1); | |
| 677 | |
| 678 name.data = p; | |
| 679 | |
| 680 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 681 "upstream SSL server name: \"%s\"", name.data); | |
| 682 | |
| 683 if (SSL_set_tlsext_host_name(u->peer.connection->ssl->connection, name.data) | |
| 684 == 0) | |
| 685 { | |
| 686 ngx_ssl_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 687 "SSL_set_tlsext_host_name(\"%s\") failed", name.data); | |
| 688 return NGX_ERROR; | |
| 689 } | |
| 690 | |
| 691 #endif | |
| 692 | |
| 693 done: | |
| 694 | |
| 695 u->ssl_name = name; | |
| 696 | |
| 697 return NGX_OK; | |
| 698 } | |
| 699 | |
| 700 #endif | |
| 701 | |
| 702 | |
| 703 static void | |
| 704 ngx_stream_proxy_downstream_handler(ngx_event_t *ev) | |
| 705 { | |
| 706 ngx_connection_t *c; | |
| 707 ngx_stream_session_t *s; | |
| 708 ngx_stream_upstream_t *u; | |
| 709 | |
| 710 c = ev->data; | |
| 711 s = c->data; | |
| 712 | |
| 713 if (ev->timedout) { | |
| 714 ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out"); | |
| 715 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 716 return; | |
| 717 } | |
| 718 | |
| 719 u = s->upstream; | |
| 720 | |
| 721 if (!ev->write) { | |
| 722 ngx_stream_proxy_process(s, 0, 0); | |
| 723 | |
| 724 } else if (u->upstream_buf.start) { | |
| 725 ngx_stream_proxy_process(s, 1, 1); | |
| 726 } | |
| 727 } | |
| 728 | |
| 729 | |
| 730 static void | |
| 731 ngx_stream_proxy_upstream_handler(ngx_event_t *ev) | |
| 732 { | |
| 733 ngx_connection_t *c; | |
| 734 ngx_stream_session_t *s; | |
| 735 ngx_stream_upstream_t *u; | |
| 736 | |
| 737 c = ev->data; | |
| 738 s = c->data; | |
| 739 | |
| 740 u = s->upstream; | |
| 741 | |
| 742 if (ev->write) { | |
| 743 ngx_stream_proxy_process(s, 0, 1); | |
| 744 | |
| 745 } else if (u->upstream_buf.start) { | |
| 746 ngx_stream_proxy_process(s, 1, 0); | |
| 747 } | |
| 748 } | |
| 749 | |
| 750 | |
| 751 static void | |
| 752 ngx_stream_proxy_connect_handler(ngx_event_t *ev) | |
| 753 { | |
| 754 ngx_connection_t *c; | |
| 755 ngx_stream_session_t *s; | |
| 756 | |
| 757 c = ev->data; | |
| 758 s = c->data; | |
| 759 | |
| 760 if (ev->timedout) { | |
| 761 ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "upstream timed out"); | |
| 762 ngx_stream_proxy_next_upstream(s); | |
| 763 return; | |
| 764 } | |
| 765 | |
| 766 ngx_del_timer(c->write); | |
| 767 | |
| 768 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
| 769 "stream proxy connect upstream"); | |
| 770 | |
| 771 if (ngx_stream_proxy_test_connect(c) != NGX_OK) { | |
| 772 ngx_stream_proxy_next_upstream(s); | |
| 773 return; | |
| 774 } | |
| 775 | |
| 776 ngx_stream_proxy_init_upstream(s); | |
| 777 } | |
| 778 | |
| 779 | |
| 780 static ngx_int_t | |
| 781 ngx_stream_proxy_test_connect(ngx_connection_t *c) | |
| 782 { | |
| 783 int err; | |
| 784 socklen_t len; | |
| 785 | |
| 786 #if (NGX_HAVE_KQUEUE) | |
| 787 | |
| 788 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 789 err = c->write->kq_errno ? c->write->kq_errno : c->read->kq_errno; | |
| 790 | |
| 791 if (err) { | |
| 792 (void) ngx_connection_error(c, err, | |
| 793 "kevent() reported that connect() failed"); | |
| 794 return NGX_ERROR; | |
| 795 } | |
| 796 | |
| 797 } else | |
| 798 #endif | |
| 799 { | |
| 800 err = 0; | |
| 801 len = sizeof(int); | |
| 802 | |
| 803 /* | |
| 804 * BSDs and Linux return 0 and set a pending error in err | |
| 805 * Solaris returns -1 and sets errno | |
| 806 */ | |
| 807 | |
| 808 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 809 == -1) | |
| 810 { | |
| 811 err = ngx_socket_errno; | |
| 812 } | |
| 813 | |
| 814 if (err) { | |
| 815 (void) ngx_connection_error(c, err, "connect() failed"); | |
| 816 return NGX_ERROR; | |
| 817 } | |
| 818 } | |
| 819 | |
| 820 return NGX_OK; | |
| 821 } | |
| 822 | |
| 823 | |
| 824 static ngx_int_t | |
| 825 ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream, | |
| 826 ngx_uint_t do_write) | |
| 827 { | |
| 828 size_t size; | |
| 829 ssize_t n; | |
| 830 ngx_buf_t *b; | |
|
6124
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
831 ngx_uint_t flags; |
| 6115 | 832 ngx_connection_t *c, *pc, *src, *dst; |
| 833 ngx_log_handler_pt handler; | |
| 834 ngx_stream_upstream_t *u; | |
| 835 ngx_stream_proxy_srv_conf_t *pscf; | |
| 836 | |
| 837 u = s->upstream; | |
| 838 | |
| 839 c = s->connection; | |
| 840 pc = u->upstream_buf.start ? u->peer.connection : NULL; | |
| 841 | |
| 842 if (from_upstream) { | |
| 843 src = pc; | |
| 844 dst = c; | |
| 845 b = &u->upstream_buf; | |
| 846 | |
| 847 } else { | |
| 848 src = c; | |
| 849 dst = pc; | |
| 850 b = &u->downstream_buf; | |
| 851 } | |
| 852 | |
| 853 for ( ;; ) { | |
| 854 | |
| 855 if (do_write) { | |
| 856 | |
| 857 size = b->last - b->pos; | |
| 858 | |
| 859 if (size && dst && dst->write->ready) { | |
| 860 | |
| 861 n = dst->send(dst, b->pos, size); | |
| 862 | |
| 863 if (n == NGX_ERROR) { | |
| 864 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 865 return NGX_ERROR; | |
| 866 } | |
| 867 | |
| 868 if (n > 0) { | |
| 869 b->pos += n; | |
| 870 | |
| 871 if (b->pos == b->last) { | |
| 872 b->pos = b->start; | |
| 873 b->last = b->start; | |
| 874 } | |
| 875 } | |
| 876 } | |
| 877 } | |
| 878 | |
| 879 size = b->end - b->last; | |
| 880 | |
| 881 if (size && src->read->ready) { | |
| 882 | |
| 883 n = src->recv(src, b->last, size); | |
| 884 | |
| 885 if (n == NGX_AGAIN || n == 0) { | |
| 886 break; | |
| 887 } | |
| 888 | |
| 889 if (n > 0) { | |
| 890 if (from_upstream) { | |
| 891 u->received += n; | |
| 892 | |
| 893 } else { | |
| 894 s->received += n; | |
| 895 } | |
| 896 | |
| 897 do_write = 1; | |
| 898 b->last += n; | |
| 899 continue; | |
| 900 } | |
| 901 | |
| 902 if (n == NGX_ERROR) { | |
| 903 src->read->eof = 1; | |
| 904 } | |
| 905 } | |
| 906 | |
| 907 break; | |
| 908 } | |
| 909 | |
| 910 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 911 | |
| 912 if (src->read->eof && (b->pos == b->last || (dst && dst->read->eof))) { | |
| 913 handler = c->log->handler; | |
| 914 c->log->handler = NULL; | |
| 915 | |
| 916 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 917 "%s disconnected" | |
| 918 ", bytes from/to client:%O/%O" | |
| 919 ", bytes from/to upstream:%O/%O", | |
| 920 from_upstream ? "upstream" : "client", | |
| 921 s->received, c->sent, u->received, pc ? pc->sent : 0); | |
| 922 | |
| 923 c->log->handler = handler; | |
| 924 | |
| 925 ngx_stream_proxy_finalize(s, NGX_OK); | |
| 926 return NGX_DONE; | |
| 927 } | |
| 928 | |
|
6124
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
929 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
|
930 |
|
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
931 if (ngx_handle_read_event(src->read, flags) != NGX_OK) { |
| 6115 | 932 ngx_stream_proxy_finalize(s, NGX_ERROR); |
| 933 return NGX_ERROR; | |
| 934 } | |
| 935 | |
| 936 if (dst) { | |
| 937 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { | |
| 938 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 939 return NGX_ERROR; | |
| 940 } | |
| 941 | |
| 942 ngx_add_timer(c->read, pscf->timeout); | |
| 943 } | |
| 944 | |
| 945 return NGX_OK; | |
| 946 } | |
| 947 | |
| 948 | |
| 949 static void | |
| 950 ngx_stream_proxy_next_upstream(ngx_stream_session_t *s) | |
| 951 { | |
| 952 ngx_msec_t timeout; | |
| 953 ngx_connection_t *pc; | |
| 954 ngx_stream_upstream_t *u; | |
| 955 ngx_stream_proxy_srv_conf_t *pscf; | |
| 956 | |
| 957 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 958 "stream proxy next upstream"); | |
| 959 | |
| 960 u = s->upstream; | |
| 961 | |
| 962 if (u->peer.sockaddr) { | |
| 963 u->peer.free(&u->peer, u->peer.data, NGX_PEER_FAILED); | |
| 964 u->peer.sockaddr = NULL; | |
| 965 } | |
| 966 | |
| 967 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 968 | |
| 969 timeout = pscf->next_upstream_timeout; | |
| 970 | |
| 971 if (u->peer.tries == 0 | |
| 972 || !pscf->next_upstream | |
| 973 || (timeout && ngx_current_msec - u->peer.start_time >= timeout)) | |
| 974 { | |
| 975 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 976 return; | |
| 977 } | |
| 978 | |
| 979 pc = u->peer.connection; | |
| 980 | |
| 981 if (pc) { | |
| 982 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 983 "close proxy upstream connection: %d", pc->fd); | |
| 984 | |
| 985 #if (NGX_STREAM_SSL) | |
| 986 if (pc->ssl) { | |
| 987 pc->ssl->no_wait_shutdown = 1; | |
| 988 pc->ssl->no_send_shutdown = 1; | |
| 989 | |
| 990 (void) ngx_ssl_shutdown(pc); | |
| 991 } | |
| 992 #endif | |
| 993 | |
| 994 ngx_close_connection(pc); | |
| 995 u->peer.connection = NULL; | |
| 996 } | |
| 997 | |
| 998 ngx_stream_proxy_connect(s); | |
| 999 } | |
| 1000 | |
| 1001 | |
| 1002 static void | |
| 1003 ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc) | |
| 1004 { | |
| 1005 ngx_connection_t *pc; | |
| 1006 ngx_stream_upstream_t *u; | |
| 1007 | |
| 1008 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 1009 "finalize stream proxy: %i", rc); | |
| 1010 | |
| 1011 u = s->upstream; | |
| 1012 | |
| 1013 if (u == NULL) { | |
| 1014 goto noupstream; | |
| 1015 } | |
| 1016 | |
| 1017 if (u->peer.free && u->peer.sockaddr) { | |
| 1018 u->peer.free(&u->peer, u->peer.data, 0); | |
| 1019 u->peer.sockaddr = NULL; | |
| 1020 } | |
| 1021 | |
| 1022 pc = u->peer.connection; | |
| 1023 | |
| 1024 if (pc) { | |
| 1025 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 1026 "close stream proxy upstream connection: %d", pc->fd); | |
| 1027 | |
| 1028 #if (NGX_STREAM_SSL) | |
| 1029 if (pc->ssl) { | |
| 1030 pc->ssl->no_wait_shutdown = 1; | |
| 1031 (void) ngx_ssl_shutdown(pc); | |
| 1032 } | |
| 1033 #endif | |
| 1034 | |
| 1035 ngx_close_connection(pc); | |
| 1036 u->peer.connection = NULL; | |
| 1037 } | |
| 1038 | |
| 1039 noupstream: | |
| 1040 | |
| 1041 ngx_stream_close_connection(s->connection); | |
| 1042 } | |
| 1043 | |
| 1044 | |
| 1045 static u_char * | |
| 1046 ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
| 1047 { | |
| 1048 u_char *p; | |
| 1049 ngx_connection_t *pc; | |
| 1050 ngx_stream_session_t *s; | |
| 1051 ngx_stream_upstream_t *u; | |
| 1052 | |
| 1053 s = log->data; | |
| 1054 | |
| 1055 u = s->upstream; | |
| 1056 | |
| 1057 p = buf; | |
| 1058 | |
| 1059 if (u->peer.name) { | |
| 1060 p = ngx_snprintf(p, len, ", upstream: \"%V\"", u->peer.name); | |
| 1061 len -= p - buf; | |
| 1062 } | |
| 1063 | |
| 1064 pc = u->peer.connection; | |
| 1065 | |
| 1066 p = ngx_snprintf(p, len, | |
| 1067 ", bytes from/to client:%O/%O" | |
| 1068 ", bytes from/to upstream:%O/%O", | |
| 1069 s->received, s->connection->sent, | |
| 1070 u->received, pc ? pc->sent : 0); | |
| 1071 | |
| 1072 return p; | |
| 1073 } | |
| 1074 | |
| 1075 | |
| 1076 static void * | |
| 1077 ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf) | |
| 1078 { | |
| 1079 ngx_stream_proxy_srv_conf_t *conf; | |
| 1080 | |
| 1081 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_proxy_srv_conf_t)); | |
| 1082 if (conf == NULL) { | |
| 1083 return NULL; | |
| 1084 } | |
| 1085 | |
| 1086 /* | |
| 1087 * set by ngx_pcalloc(): | |
| 1088 * | |
| 1089 * conf->ssl_protocols = 0; | |
| 1090 * conf->ssl_ciphers = { 0, NULL }; | |
| 1091 * conf->ssl_name = { 0, NULL }; | |
| 1092 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 1093 * conf->ssl_crl = { 0, NULL }; | |
| 1094 * conf->ssl_certificate = { 0, NULL }; | |
| 1095 * conf->ssl_certificate_key = { 0, NULL }; | |
| 1096 * | |
| 1097 * conf->ssl = NULL; | |
| 1098 * conf->upstream = NULL; | |
| 1099 */ | |
| 1100 | |
| 1101 conf->connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 1102 conf->timeout = NGX_CONF_UNSET_MSEC; | |
| 1103 conf->next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 1104 conf->downstream_buf_size = NGX_CONF_UNSET_SIZE; | |
| 1105 conf->upstream_buf_size = NGX_CONF_UNSET_SIZE; | |
| 1106 conf->next_upstream_tries = NGX_CONF_UNSET_UINT; | |
| 1107 conf->next_upstream = NGX_CONF_UNSET; | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1108 conf->local = NGX_CONF_UNSET_PTR; |
| 6115 | 1109 |
| 1110 #if (NGX_STREAM_SSL) | |
| 1111 conf->ssl_enable = NGX_CONF_UNSET; | |
| 1112 conf->ssl_session_reuse = NGX_CONF_UNSET; | |
| 1113 conf->ssl_server_name = NGX_CONF_UNSET; | |
| 1114 conf->ssl_verify = NGX_CONF_UNSET; | |
| 1115 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 1116 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 1117 #endif | |
| 1118 | |
| 1119 return conf; | |
| 1120 } | |
| 1121 | |
| 1122 | |
| 1123 static char * | |
| 1124 ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1125 { | |
| 1126 ngx_stream_proxy_srv_conf_t *prev = parent; | |
| 1127 ngx_stream_proxy_srv_conf_t *conf = child; | |
| 1128 | |
| 1129 ngx_conf_merge_msec_value(conf->connect_timeout, | |
| 1130 prev->connect_timeout, 60000); | |
| 1131 | |
| 1132 ngx_conf_merge_msec_value(conf->timeout, | |
| 1133 prev->timeout, 10 * 60000); | |
| 1134 | |
| 1135 ngx_conf_merge_msec_value(conf->next_upstream_timeout, | |
| 1136 prev->next_upstream_timeout, 0); | |
| 1137 | |
| 1138 ngx_conf_merge_size_value(conf->downstream_buf_size, | |
| 1139 prev->downstream_buf_size, 16384); | |
| 1140 | |
| 1141 ngx_conf_merge_size_value(conf->upstream_buf_size, | |
| 1142 prev->upstream_buf_size, 16384); | |
| 1143 | |
| 1144 ngx_conf_merge_uint_value(conf->next_upstream_tries, | |
| 1145 prev->next_upstream_tries, 0); | |
| 1146 | |
| 1147 ngx_conf_merge_value(conf->next_upstream, prev->next_upstream, 1); | |
| 1148 | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1149 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
|
1150 |
| 6115 | 1151 #if (NGX_STREAM_SSL) |
| 1152 | |
| 1153 ngx_conf_merge_value(conf->ssl_enable, prev->ssl_enable, 0); | |
| 1154 | |
| 1155 ngx_conf_merge_value(conf->ssl_session_reuse, | |
| 1156 prev->ssl_session_reuse, 1); | |
| 1157 | |
| 1158 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
|
1159 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 |
|
b2899e7d0ef8
Disabled SSLv3 by default (ticket #653).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6124
diff
changeset
|
1160 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); |
| 6115 | 1161 |
| 1162 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, "DEFAULT"); | |
| 1163 | |
| 1164 ngx_conf_merge_str_value(conf->ssl_name, prev->ssl_name, ""); | |
| 1165 | |
| 1166 ngx_conf_merge_value(conf->ssl_server_name, prev->ssl_server_name, 0); | |
| 1167 | |
| 1168 ngx_conf_merge_value(conf->ssl_verify, prev->ssl_verify, 0); | |
| 1169 | |
| 1170 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 1171 prev->ssl_verify_depth, 1); | |
| 1172 | |
| 1173 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 1174 prev->ssl_trusted_certificate, ""); | |
| 1175 | |
| 1176 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 1177 | |
| 1178 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 1179 prev->ssl_certificate, ""); | |
| 1180 | |
| 1181 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 1182 prev->ssl_certificate_key, ""); | |
| 1183 | |
| 1184 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 1185 | |
| 1186 if (conf->ssl_enable && ngx_stream_proxy_set_ssl(cf, conf) != NGX_OK) { | |
| 1187 return NGX_CONF_ERROR; | |
| 1188 } | |
| 1189 | |
| 1190 #endif | |
| 1191 | |
| 1192 return NGX_CONF_OK; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 #if (NGX_STREAM_SSL) | |
| 1197 | |
| 1198 static ngx_int_t | |
| 1199 ngx_stream_proxy_set_ssl(ngx_conf_t *cf, ngx_stream_proxy_srv_conf_t *pscf) | |
| 1200 { | |
| 1201 ngx_pool_cleanup_t *cln; | |
| 1202 | |
| 1203 pscf->ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 1204 if (pscf->ssl == NULL) { | |
| 1205 return NGX_ERROR; | |
| 1206 } | |
| 1207 | |
| 1208 pscf->ssl->log = cf->log; | |
| 1209 | |
| 1210 if (ngx_ssl_create(pscf->ssl, pscf->ssl_protocols, NULL) != NGX_OK) { | |
| 1211 return NGX_ERROR; | |
| 1212 } | |
| 1213 | |
| 1214 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 1215 if (cln == NULL) { | |
| 1216 return NGX_ERROR; | |
| 1217 } | |
| 1218 | |
| 1219 cln->handler = ngx_ssl_cleanup_ctx; | |
| 1220 cln->data = pscf->ssl; | |
| 1221 | |
| 1222 if (pscf->ssl_certificate.len) { | |
| 1223 | |
| 1224 if (pscf->ssl_certificate_key.len == 0) { | |
| 1225 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1226 "no \"proxy_ssl_certificate_key\" is defined " | |
| 1227 "for certificate \"%V\"", &pscf->ssl_certificate); | |
| 1228 return NGX_ERROR; | |
| 1229 } | |
| 1230 | |
| 1231 if (ngx_ssl_certificate(cf, pscf->ssl, &pscf->ssl_certificate, | |
| 1232 &pscf->ssl_certificate_key, pscf->ssl_passwords) | |
| 1233 != NGX_OK) | |
| 1234 { | |
| 1235 return NGX_ERROR; | |
| 1236 } | |
| 1237 } | |
| 1238 | |
| 1239 if (SSL_CTX_set_cipher_list(pscf->ssl->ctx, | |
| 1240 (const char *) pscf->ssl_ciphers.data) | |
| 1241 == 0) | |
| 1242 { | |
| 1243 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1244 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
| 1245 &pscf->ssl_ciphers); | |
| 1246 return NGX_ERROR; | |
| 1247 } | |
| 1248 | |
| 1249 if (pscf->ssl_verify) { | |
| 1250 if (pscf->ssl_trusted_certificate.len == 0) { | |
| 1251 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1252 "no proxy_ssl_trusted_certificate for proxy_ssl_verify"); | |
| 1253 return NGX_ERROR; | |
| 1254 } | |
| 1255 | |
| 1256 if (ngx_ssl_trusted_certificate(cf, pscf->ssl, | |
| 1257 &pscf->ssl_trusted_certificate, | |
| 1258 pscf->ssl_verify_depth) | |
| 1259 != NGX_OK) | |
| 1260 { | |
| 1261 return NGX_ERROR; | |
| 1262 } | |
| 1263 | |
| 1264 if (ngx_ssl_crl(cf, pscf->ssl, &pscf->ssl_crl) != NGX_OK) { | |
| 1265 return NGX_ERROR; | |
| 1266 } | |
| 1267 } | |
| 1268 | |
| 1269 return NGX_OK; | |
| 1270 } | |
| 1271 | |
| 1272 #endif | |
| 1273 | |
| 1274 | |
| 1275 static char * | |
| 1276 ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 1277 { | |
| 1278 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
| 1279 | |
| 1280 ngx_url_t u; | |
| 1281 ngx_str_t *value, *url; | |
| 1282 ngx_stream_core_srv_conf_t *cscf; | |
| 1283 | |
| 1284 if (pscf->upstream) { | |
| 1285 return "is duplicate"; | |
| 1286 } | |
| 1287 | |
| 1288 cscf = ngx_stream_conf_get_module_srv_conf(cf, ngx_stream_core_module); | |
| 1289 | |
| 1290 cscf->handler = ngx_stream_proxy_handler; | |
| 1291 | |
| 1292 value = cf->args->elts; | |
| 1293 | |
| 1294 url = &value[1]; | |
| 1295 | |
| 1296 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 1297 | |
| 1298 u.url = *url; | |
| 1299 u.no_resolve = 1; | |
| 1300 | |
| 1301 pscf->upstream = ngx_stream_upstream_add(cf, &u, 0); | |
| 1302 if (pscf->upstream == NULL) { | |
| 1303 return NGX_CONF_ERROR; | |
| 1304 } | |
| 1305 | |
| 1306 return NGX_CONF_OK; | |
| 1307 } | |
|
6183
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1308 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1309 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1310 static char * |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1311 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:
6174
diff
changeset
|
1312 { |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1313 ngx_stream_proxy_srv_conf_t *pscf = conf; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1314 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1315 ngx_int_t rc; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1316 ngx_str_t *value; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1317 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1318 if (pscf->local != NGX_CONF_UNSET_PTR) { |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1319 return "is duplicate"; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1320 } |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1321 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1322 value = cf->args->elts; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1323 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1324 if (ngx_strcmp(value[1].data, "off") == 0) { |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1325 pscf->local = NULL; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1326 return NGX_CONF_OK; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1327 } |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1328 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1329 pscf->local = ngx_palloc(cf->pool, sizeof(ngx_addr_t)); |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1330 if (pscf->local == NULL) { |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1331 return NGX_CONF_ERROR; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1332 } |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1333 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1334 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:
6174
diff
changeset
|
1335 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1336 switch (rc) { |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1337 case NGX_OK: |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1338 pscf->local->name = value[1]; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1339 return NGX_CONF_OK; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1340 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1341 case NGX_DECLINED: |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1342 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1343 "invalid address \"%V\"", &value[1]); |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1344 /* fall through */ |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1345 |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1346 default: |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1347 return NGX_CONF_ERROR; |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1348 } |
|
4dcffe43a7ea
Stream: the "proxy_bind" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6174
diff
changeset
|
1349 } |