Mercurial > hg > nginx
annotate src/stream/ngx_stream_proxy_module.c @ 6124:f1f222db290b
Stream: prevent repeated event notifications after eof.
When client or upstream connection is closed, level-triggered read event
remained active until the end of the session leading to cpu hog. Now the flag
NGX_CLOSE_EVENT is used to unschedule the event.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Wed, 22 Apr 2015 19:55:04 +0300 |
| parents | 61d7ae76647d |
| children | b2899e7d0ef8 |
| rev | line source |
|---|---|
| 6115 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_stream.h> | |
| 11 | |
| 12 | |
| 13 typedef void (*ngx_stream_proxy_handler_pt)(ngx_stream_session_t *s); | |
| 14 | |
| 15 | |
| 16 typedef struct { | |
| 17 ngx_msec_t connect_timeout; | |
| 18 ngx_msec_t timeout; | |
| 19 ngx_msec_t next_upstream_timeout; | |
| 20 size_t downstream_buf_size; | |
| 21 size_t upstream_buf_size; | |
| 22 ngx_uint_t next_upstream_tries; | |
| 23 ngx_flag_t next_upstream; | |
| 24 | |
| 25 #if (NGX_STREAM_SSL) | |
| 26 ngx_flag_t ssl_enable; | |
| 27 ngx_flag_t ssl_session_reuse; | |
| 28 ngx_uint_t ssl_protocols; | |
| 29 ngx_str_t ssl_ciphers; | |
| 30 ngx_str_t ssl_name; | |
| 31 ngx_flag_t ssl_server_name; | |
| 32 | |
| 33 ngx_flag_t ssl_verify; | |
| 34 ngx_uint_t ssl_verify_depth; | |
| 35 ngx_str_t ssl_trusted_certificate; | |
| 36 ngx_str_t ssl_crl; | |
| 37 ngx_str_t ssl_certificate; | |
| 38 ngx_str_t ssl_certificate_key; | |
| 39 ngx_array_t *ssl_passwords; | |
| 40 | |
| 41 ngx_ssl_t *ssl; | |
| 42 #endif | |
| 43 | |
| 44 ngx_stream_upstream_srv_conf_t *upstream; | |
| 45 } ngx_stream_proxy_srv_conf_t; | |
| 46 | |
| 47 | |
| 48 static void ngx_stream_proxy_handler(ngx_stream_session_t *s); | |
| 49 static void ngx_stream_proxy_connect(ngx_stream_session_t *s); | |
| 50 static void ngx_stream_proxy_init_upstream(ngx_stream_session_t *s); | |
| 51 static void ngx_stream_proxy_upstream_handler(ngx_event_t *ev); | |
| 52 static void ngx_stream_proxy_downstream_handler(ngx_event_t *ev); | |
| 53 static void ngx_stream_proxy_connect_handler(ngx_event_t *ev); | |
| 54 static ngx_int_t ngx_stream_proxy_test_connect(ngx_connection_t *c); | |
| 55 static ngx_int_t ngx_stream_proxy_process(ngx_stream_session_t *s, | |
| 56 ngx_uint_t from_upstream, ngx_uint_t do_write); | |
| 57 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s); | |
| 58 static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc); | |
| 59 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, | |
| 60 size_t len); | |
| 61 | |
| 62 static void *ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf); | |
| 63 static char *ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
| 64 void *child); | |
| 65 static char *ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 66 void *conf); | |
| 67 | |
| 68 #if (NGX_STREAM_SSL) | |
| 69 | |
| 70 static char *ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, | |
| 71 ngx_command_t *cmd, void *conf); | |
| 72 static void ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s); | |
| 73 static void ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc); | |
| 74 static ngx_int_t ngx_stream_proxy_ssl_name(ngx_stream_session_t *s); | |
| 75 static ngx_int_t ngx_stream_proxy_set_ssl(ngx_conf_t *cf, | |
| 76 ngx_stream_proxy_srv_conf_t *pscf); | |
| 77 | |
| 78 | |
| 79 static ngx_conf_bitmask_t ngx_stream_proxy_ssl_protocols[] = { | |
| 80 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 81 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 82 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 83 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 84 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 85 { ngx_null_string, 0 } | |
| 86 }; | |
| 87 | |
| 88 #endif | |
| 89 | |
| 90 | |
| 91 static ngx_command_t ngx_stream_proxy_commands[] = { | |
| 92 | |
| 93 { ngx_string("proxy_pass"), | |
| 94 NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 95 ngx_stream_proxy_pass, | |
| 96 NGX_STREAM_SRV_CONF_OFFSET, | |
| 97 0, | |
| 98 NULL }, | |
| 99 | |
| 100 { ngx_string("proxy_connect_timeout"), | |
| 101 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 102 ngx_conf_set_msec_slot, | |
| 103 NGX_STREAM_SRV_CONF_OFFSET, | |
| 104 offsetof(ngx_stream_proxy_srv_conf_t, connect_timeout), | |
| 105 NULL }, | |
| 106 | |
| 107 { ngx_string("proxy_timeout"), | |
| 108 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 109 ngx_conf_set_msec_slot, | |
| 110 NGX_STREAM_SRV_CONF_OFFSET, | |
| 111 offsetof(ngx_stream_proxy_srv_conf_t, timeout), | |
| 112 NULL }, | |
| 113 | |
| 114 { ngx_string("proxy_downstream_buffer"), | |
| 115 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 116 ngx_conf_set_size_slot, | |
| 117 NGX_STREAM_SRV_CONF_OFFSET, | |
| 118 offsetof(ngx_stream_proxy_srv_conf_t, downstream_buf_size), | |
| 119 NULL }, | |
| 120 | |
| 121 { ngx_string("proxy_upstream_buffer"), | |
| 122 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 123 ngx_conf_set_size_slot, | |
| 124 NGX_STREAM_SRV_CONF_OFFSET, | |
| 125 offsetof(ngx_stream_proxy_srv_conf_t, upstream_buf_size), | |
| 126 NULL }, | |
| 127 | |
| 128 { ngx_string("proxy_next_upstream"), | |
| 129 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 130 ngx_conf_set_flag_slot, | |
| 131 NGX_STREAM_SRV_CONF_OFFSET, | |
| 132 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream), | |
| 133 NULL }, | |
| 134 | |
| 135 { ngx_string("proxy_next_upstream_tries"), | |
| 136 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 137 ngx_conf_set_num_slot, | |
| 138 NGX_STREAM_SRV_CONF_OFFSET, | |
| 139 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_tries), | |
| 140 NULL }, | |
| 141 | |
| 142 { ngx_string("proxy_next_upstream_timeout"), | |
| 143 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 144 ngx_conf_set_msec_slot, | |
| 145 NGX_STREAM_SRV_CONF_OFFSET, | |
| 146 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_timeout), | |
| 147 NULL }, | |
| 148 | |
| 149 #if (NGX_STREAM_SSL) | |
| 150 | |
| 151 { ngx_string("proxy_ssl"), | |
| 152 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 153 ngx_conf_set_flag_slot, | |
| 154 NGX_STREAM_SRV_CONF_OFFSET, | |
| 155 offsetof(ngx_stream_proxy_srv_conf_t, ssl_enable), | |
| 156 NULL }, | |
| 157 | |
| 158 { ngx_string("proxy_ssl_session_reuse"), | |
| 159 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 160 ngx_conf_set_flag_slot, | |
| 161 NGX_STREAM_SRV_CONF_OFFSET, | |
| 162 offsetof(ngx_stream_proxy_srv_conf_t, ssl_session_reuse), | |
| 163 NULL }, | |
| 164 | |
| 165 { ngx_string("proxy_ssl_protocols"), | |
| 166 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
| 167 ngx_conf_set_bitmask_slot, | |
| 168 NGX_STREAM_SRV_CONF_OFFSET, | |
| 169 offsetof(ngx_stream_proxy_srv_conf_t, ssl_protocols), | |
| 170 &ngx_stream_proxy_ssl_protocols }, | |
| 171 | |
| 172 { ngx_string("proxy_ssl_ciphers"), | |
| 173 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 174 ngx_conf_set_str_slot, | |
| 175 NGX_STREAM_SRV_CONF_OFFSET, | |
| 176 offsetof(ngx_stream_proxy_srv_conf_t, ssl_ciphers), | |
| 177 NULL }, | |
| 178 | |
| 179 { ngx_string("proxy_ssl_name"), | |
| 180 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 181 ngx_conf_set_str_slot, | |
| 182 NGX_STREAM_SRV_CONF_OFFSET, | |
| 183 offsetof(ngx_stream_proxy_srv_conf_t, ssl_name), | |
| 184 NULL }, | |
| 185 | |
| 186 { ngx_string("proxy_ssl_server_name"), | |
| 187 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 188 ngx_conf_set_flag_slot, | |
| 189 NGX_STREAM_SRV_CONF_OFFSET, | |
| 190 offsetof(ngx_stream_proxy_srv_conf_t, ssl_server_name), | |
| 191 NULL }, | |
| 192 | |
| 193 { ngx_string("proxy_ssl_verify"), | |
| 194 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| 195 ngx_conf_set_flag_slot, | |
| 196 NGX_STREAM_SRV_CONF_OFFSET, | |
| 197 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify), | |
| 198 NULL }, | |
| 199 | |
| 200 { ngx_string("proxy_ssl_verify_depth"), | |
| 201 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 202 ngx_conf_set_num_slot, | |
| 203 NGX_STREAM_SRV_CONF_OFFSET, | |
| 204 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify_depth), | |
| 205 NULL }, | |
| 206 | |
| 207 { ngx_string("proxy_ssl_trusted_certificate"), | |
| 208 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 209 ngx_conf_set_str_slot, | |
| 210 NGX_STREAM_SRV_CONF_OFFSET, | |
| 211 offsetof(ngx_stream_proxy_srv_conf_t, ssl_trusted_certificate), | |
| 212 NULL }, | |
| 213 | |
| 214 { ngx_string("proxy_ssl_crl"), | |
| 215 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 216 ngx_conf_set_str_slot, | |
| 217 NGX_STREAM_SRV_CONF_OFFSET, | |
| 218 offsetof(ngx_stream_proxy_srv_conf_t, ssl_crl), | |
| 219 NULL }, | |
| 220 | |
| 221 { ngx_string("proxy_ssl_certificate"), | |
| 222 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 223 ngx_conf_set_str_slot, | |
| 224 NGX_STREAM_SRV_CONF_OFFSET, | |
| 225 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate), | |
| 226 NULL }, | |
| 227 | |
| 228 { ngx_string("proxy_ssl_certificate_key"), | |
| 229 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 230 ngx_conf_set_str_slot, | |
| 231 NGX_STREAM_SRV_CONF_OFFSET, | |
| 232 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate_key), | |
| 233 NULL }, | |
| 234 | |
| 235 { ngx_string("proxy_ssl_password_file"), | |
| 236 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| 237 ngx_stream_proxy_ssl_password_file, | |
| 238 NGX_STREAM_SRV_CONF_OFFSET, | |
| 239 0, | |
| 240 NULL }, | |
| 241 | |
| 242 #endif | |
| 243 | |
| 244 ngx_null_command | |
| 245 }; | |
| 246 | |
| 247 | |
| 248 static ngx_stream_module_t ngx_stream_proxy_module_ctx = { | |
| 249 NULL, /* create main configuration */ | |
| 250 NULL, /* init main configuration */ | |
| 251 | |
| 252 ngx_stream_proxy_create_srv_conf, /* create server configuration */ | |
| 253 ngx_stream_proxy_merge_srv_conf /* merge server configuration */ | |
| 254 }; | |
| 255 | |
| 256 | |
| 257 ngx_module_t ngx_stream_proxy_module = { | |
| 258 NGX_MODULE_V1, | |
| 259 &ngx_stream_proxy_module_ctx, /* module context */ | |
| 260 ngx_stream_proxy_commands, /* module directives */ | |
| 261 NGX_STREAM_MODULE, /* module type */ | |
| 262 NULL, /* init master */ | |
| 263 NULL, /* init module */ | |
| 264 NULL, /* init process */ | |
| 265 NULL, /* init thread */ | |
| 266 NULL, /* exit thread */ | |
| 267 NULL, /* exit process */ | |
| 268 NULL, /* exit master */ | |
| 269 NGX_MODULE_V1_PADDING | |
| 270 }; | |
| 271 | |
| 272 | |
| 273 static void | |
| 274 ngx_stream_proxy_handler(ngx_stream_session_t *s) | |
| 275 { | |
| 276 u_char *p; | |
| 277 ngx_connection_t *c; | |
| 278 ngx_stream_upstream_t *u; | |
| 279 ngx_stream_proxy_srv_conf_t *pscf; | |
| 280 ngx_stream_upstream_srv_conf_t *uscf; | |
| 281 | |
| 282 c = s->connection; | |
| 283 | |
| 284 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 285 | |
| 286 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
| 287 "proxy connection handler"); | |
| 288 | |
| 289 u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t)); | |
| 290 if (u == NULL) { | |
| 291 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 292 return; | |
| 293 } | |
| 294 | |
| 295 s->upstream = u; | |
| 296 | |
| 297 s->log_handler = ngx_stream_proxy_log_error; | |
| 298 | |
| 299 u->peer.log = c->log; | |
| 300 u->peer.log_error = NGX_ERROR_ERR; | |
| 301 | |
| 302 uscf = pscf->upstream; | |
| 303 | |
| 304 if (uscf->peer.init(s, uscf) != NGX_OK) { | |
| 305 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 306 return; | |
| 307 } | |
| 308 | |
| 309 u->peer.start_time = ngx_current_msec; | |
| 310 | |
| 311 if (pscf->next_upstream_tries | |
| 312 && u->peer.tries > pscf->next_upstream_tries) | |
| 313 { | |
| 314 u->peer.tries = pscf->next_upstream_tries; | |
| 315 } | |
| 316 | |
| 317 p = ngx_pnalloc(c->pool, pscf->downstream_buf_size); | |
| 318 if (p == NULL) { | |
| 319 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 320 return; | |
| 321 } | |
| 322 | |
| 323 u->downstream_buf.start = p; | |
| 324 u->downstream_buf.end = p + pscf->downstream_buf_size; | |
| 325 u->downstream_buf.pos = p; | |
| 326 u->downstream_buf.last = p; | |
| 327 | |
| 328 c->write->handler = ngx_stream_proxy_downstream_handler; | |
| 329 c->read->handler = ngx_stream_proxy_downstream_handler; | |
| 330 | |
| 331 if (ngx_stream_proxy_process(s, 0, 0) != NGX_OK) { | |
| 332 return; | |
| 333 } | |
| 334 | |
| 335 ngx_stream_proxy_connect(s); | |
| 336 } | |
| 337 | |
| 338 | |
| 339 static void | |
| 340 ngx_stream_proxy_connect(ngx_stream_session_t *s) | |
| 341 { | |
| 342 ngx_int_t rc; | |
| 343 ngx_connection_t *c, *pc; | |
| 344 ngx_stream_upstream_t *u; | |
| 345 ngx_stream_proxy_srv_conf_t *pscf; | |
| 346 | |
| 347 c = s->connection; | |
| 348 | |
| 349 c->log->action = "connecting to upstream"; | |
| 350 | |
| 351 u = s->upstream; | |
| 352 | |
| 353 rc = ngx_event_connect_peer(&u->peer); | |
| 354 | |
| 355 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc); | |
| 356 | |
| 357 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 358 | |
| 359 if (rc == NGX_ERROR) { | |
| 360 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 361 return; | |
| 362 } | |
| 363 | |
| 364 if (rc == NGX_BUSY) { | |
| 365 ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams"); | |
| 366 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 367 return; | |
| 368 } | |
| 369 | |
| 370 if (rc == NGX_DECLINED) { | |
| 371 ngx_stream_proxy_next_upstream(s); | |
| 372 return; | |
| 373 } | |
| 374 | |
| 375 /* rc == NGX_OK || rc == NGX_AGAIN || rc == NGX_DONE */ | |
| 376 | |
| 377 pc = u->peer.connection; | |
| 378 | |
| 379 pc->data = s; | |
| 380 pc->log = c->log; | |
| 381 pc->pool = c->pool; | |
| 382 pc->read->log = c->log; | |
| 383 pc->write->log = c->log; | |
| 384 | |
| 385 if (rc != NGX_AGAIN) { | |
| 386 ngx_stream_proxy_init_upstream(s); | |
| 387 return; | |
| 388 } | |
| 389 | |
| 390 pc->read->handler = ngx_stream_proxy_connect_handler; | |
| 391 pc->write->handler = ngx_stream_proxy_connect_handler; | |
| 392 | |
| 393 ngx_add_timer(pc->write, pscf->connect_timeout); | |
| 394 } | |
| 395 | |
| 396 | |
| 397 static void | |
| 398 ngx_stream_proxy_init_upstream(ngx_stream_session_t *s) | |
| 399 { | |
| 400 u_char *p; | |
| 401 ngx_connection_t *c, *pc; | |
| 402 ngx_log_handler_pt handler; | |
| 403 ngx_stream_upstream_t *u; | |
| 404 ngx_stream_proxy_srv_conf_t *pscf; | |
| 405 | |
| 406 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 407 | |
| 408 u = s->upstream; | |
| 409 | |
| 410 pc = u->peer.connection; | |
| 411 | |
| 412 #if (NGX_STREAM_SSL) | |
| 413 if (pscf->ssl && pc->ssl == NULL) { | |
| 414 ngx_stream_proxy_ssl_init_connection(s); | |
| 415 return; | |
| 416 } | |
| 417 #endif | |
| 418 | |
| 419 c = s->connection; | |
| 420 | |
| 421 if (c->log->log_level >= NGX_LOG_INFO) { | |
| 422 ngx_str_t s; | |
| 423 u_char addr[NGX_SOCKADDR_STRLEN]; | |
| 424 | |
| 425 s.len = NGX_SOCKADDR_STRLEN; | |
| 426 s.data = addr; | |
| 427 | |
| 428 if (ngx_connection_local_sockaddr(pc, &s, 1) == NGX_OK) { | |
| 429 handler = c->log->handler; | |
| 430 c->log->handler = NULL; | |
| 431 | |
| 432 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxy %V connected to %V", | |
| 433 &s, u->peer.name); | |
| 434 | |
| 435 c->log->handler = handler; | |
| 436 } | |
| 437 } | |
| 438 | |
| 439 c->log->action = "proxying connection"; | |
| 440 | |
| 441 p = ngx_pnalloc(c->pool, pscf->upstream_buf_size); | |
| 442 if (p == NULL) { | |
| 443 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 444 return; | |
| 445 } | |
| 446 | |
| 447 u->upstream_buf.start = p; | |
| 448 u->upstream_buf.end = p + pscf->upstream_buf_size; | |
| 449 u->upstream_buf.pos = p; | |
| 450 u->upstream_buf.last = p; | |
| 451 | |
| 452 pc->read->handler = ngx_stream_proxy_upstream_handler; | |
| 453 pc->write->handler = ngx_stream_proxy_upstream_handler; | |
| 454 | |
| 455 if (ngx_stream_proxy_process(s, 1, 0) != NGX_OK) { | |
| 456 return; | |
| 457 } | |
| 458 | |
| 459 ngx_stream_proxy_process(s, 0, 1); | |
| 460 } | |
| 461 | |
| 462 | |
| 463 #if (NGX_STREAM_SSL) | |
| 464 | |
| 465 static char * | |
| 466 ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 467 void *conf) | |
| 468 { | |
| 469 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
| 470 | |
| 471 ngx_str_t *value; | |
| 472 | |
| 473 if (pscf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 474 return "is duplicate"; | |
| 475 } | |
| 476 | |
| 477 value = cf->args->elts; | |
| 478 | |
| 479 pscf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 480 | |
| 481 if (pscf->ssl_passwords == NULL) { | |
| 482 return NGX_CONF_ERROR; | |
| 483 } | |
| 484 | |
| 485 return NGX_CONF_OK; | |
| 486 } | |
| 487 | |
| 488 | |
| 489 static void | |
| 490 ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s) | |
| 491 { | |
| 492 ngx_int_t rc; | |
| 493 ngx_connection_t *pc; | |
| 494 ngx_stream_upstream_t *u; | |
| 495 ngx_stream_proxy_srv_conf_t *pscf; | |
| 496 | |
| 497 u = s->upstream; | |
| 498 | |
| 499 pc = u->peer.connection; | |
| 500 | |
| 501 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 502 | |
| 503 if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 504 != NGX_OK) | |
| 505 { | |
| 506 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 507 return; | |
| 508 } | |
| 509 | |
| 510 if (pscf->ssl_server_name || pscf->ssl_verify) { | |
| 511 if (ngx_stream_proxy_ssl_name(s) != NGX_OK) { | |
| 512 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 513 return; | |
| 514 } | |
| 515 } | |
| 516 | |
| 517 if (pscf->ssl_session_reuse) { | |
| 518 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { | |
| 519 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 520 return; | |
| 521 } | |
| 522 } | |
| 523 | |
| 524 s->connection->log->action = "SSL handshaking to upstream"; | |
| 525 | |
| 526 rc = ngx_ssl_handshake(pc); | |
| 527 | |
| 528 if (rc == NGX_AGAIN) { | |
| 529 | |
| 530 if (!pc->write->timer_set) { | |
| 531 ngx_add_timer(pc->write, pscf->connect_timeout); | |
| 532 } | |
| 533 | |
| 534 pc->ssl->handler = ngx_stream_proxy_ssl_handshake; | |
| 535 return; | |
| 536 } | |
| 537 | |
| 538 ngx_stream_proxy_ssl_handshake(pc); | |
| 539 } | |
| 540 | |
| 541 | |
| 542 static void | |
| 543 ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc) | |
| 544 { | |
| 545 long rc; | |
| 546 ngx_stream_session_t *s; | |
| 547 ngx_stream_upstream_t *u; | |
| 548 ngx_stream_proxy_srv_conf_t *pscf; | |
| 549 | |
| 550 s = pc->data; | |
| 551 | |
| 552 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 553 | |
| 554 if (pc->ssl->handshaked) { | |
| 555 | |
| 556 if (pscf->ssl_verify) { | |
| 557 rc = SSL_get_verify_result(pc->ssl->connection); | |
| 558 | |
| 559 if (rc != X509_V_OK) { | |
| 560 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
| 561 "upstream SSL certificate verify error: (%l:%s)", | |
| 562 rc, X509_verify_cert_error_string(rc)); | |
| 563 goto failed; | |
| 564 } | |
| 565 | |
| 566 u = s->upstream; | |
| 567 | |
| 568 if (ngx_ssl_check_host(pc, &u->ssl_name) != NGX_OK) { | |
| 569 ngx_log_error(NGX_LOG_ERR, pc->log, 0, | |
| 570 "upstream SSL certificate does not match \"%V\"", | |
| 571 &u->ssl_name); | |
| 572 goto failed; | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 if (pscf->ssl_session_reuse) { | |
| 577 u = s->upstream; | |
| 578 u->peer.save_session(&u->peer, u->peer.data); | |
| 579 } | |
| 580 | |
| 581 ngx_stream_proxy_init_upstream(s); | |
| 582 | |
| 583 return; | |
| 584 } | |
| 585 | |
| 586 failed: | |
| 587 | |
| 588 ngx_stream_proxy_next_upstream(s); | |
| 589 } | |
| 590 | |
| 591 | |
| 592 static ngx_int_t | |
| 593 ngx_stream_proxy_ssl_name(ngx_stream_session_t *s) | |
| 594 { | |
| 595 u_char *p, *last; | |
| 596 ngx_str_t name; | |
| 597 ngx_stream_upstream_t *u; | |
| 598 ngx_stream_proxy_srv_conf_t *pscf; | |
| 599 | |
| 600 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 601 | |
| 602 u = s->upstream; | |
| 603 | |
| 604 name = pscf->ssl_name; | |
| 605 | |
| 606 if (name.len == 0) { | |
| 607 name = pscf->upstream->host; | |
| 608 } | |
| 609 | |
| 610 if (name.len == 0) { | |
| 611 goto done; | |
| 612 } | |
| 613 | |
| 614 /* | |
| 615 * ssl name here may contain port, strip it for compatibility | |
| 616 * with the http module | |
| 617 */ | |
| 618 | |
| 619 p = name.data; | |
| 620 last = name.data + name.len; | |
| 621 | |
| 622 if (*p == '[') { | |
| 623 p = ngx_strlchr(p, last, ']'); | |
| 624 | |
| 625 if (p == NULL) { | |
| 626 p = name.data; | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 p = ngx_strlchr(p, last, ':'); | |
| 631 | |
| 632 if (p != NULL) { | |
| 633 name.len = p - name.data; | |
| 634 } | |
| 635 | |
| 636 if (!pscf->ssl_server_name) { | |
| 637 goto done; | |
| 638 } | |
| 639 | |
| 640 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME | |
| 641 | |
| 642 /* as per RFC 6066, literal IPv4 and IPv6 addresses are not permitted */ | |
| 643 | |
| 644 if (name.len == 0 || *name.data == '[') { | |
| 645 goto done; | |
| 646 } | |
| 647 | |
| 648 if (ngx_inet_addr(name.data, name.len) != INADDR_NONE) { | |
| 649 goto done; | |
| 650 } | |
| 651 | |
| 652 /* | |
| 653 * SSL_set_tlsext_host_name() needs a null-terminated string, | |
| 654 * hence we explicitly null-terminate name here | |
| 655 */ | |
| 656 | |
| 657 p = ngx_pnalloc(s->connection->pool, name.len + 1); | |
| 658 if (p == NULL) { | |
| 659 return NGX_ERROR; | |
| 660 } | |
| 661 | |
| 662 (void) ngx_cpystrn(p, name.data, name.len + 1); | |
| 663 | |
| 664 name.data = p; | |
| 665 | |
| 666 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 667 "upstream SSL server name: \"%s\"", name.data); | |
| 668 | |
| 669 if (SSL_set_tlsext_host_name(u->peer.connection->ssl->connection, name.data) | |
| 670 == 0) | |
| 671 { | |
| 672 ngx_ssl_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 673 "SSL_set_tlsext_host_name(\"%s\") failed", name.data); | |
| 674 return NGX_ERROR; | |
| 675 } | |
| 676 | |
| 677 #endif | |
| 678 | |
| 679 done: | |
| 680 | |
| 681 u->ssl_name = name; | |
| 682 | |
| 683 return NGX_OK; | |
| 684 } | |
| 685 | |
| 686 #endif | |
| 687 | |
| 688 | |
| 689 static void | |
| 690 ngx_stream_proxy_downstream_handler(ngx_event_t *ev) | |
| 691 { | |
| 692 ngx_connection_t *c; | |
| 693 ngx_stream_session_t *s; | |
| 694 ngx_stream_upstream_t *u; | |
| 695 | |
| 696 c = ev->data; | |
| 697 s = c->data; | |
| 698 | |
| 699 if (ev->timedout) { | |
| 700 ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out"); | |
| 701 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 702 return; | |
| 703 } | |
| 704 | |
| 705 u = s->upstream; | |
| 706 | |
| 707 if (!ev->write) { | |
| 708 ngx_stream_proxy_process(s, 0, 0); | |
| 709 | |
| 710 } else if (u->upstream_buf.start) { | |
| 711 ngx_stream_proxy_process(s, 1, 1); | |
| 712 } | |
| 713 } | |
| 714 | |
| 715 | |
| 716 static void | |
| 717 ngx_stream_proxy_upstream_handler(ngx_event_t *ev) | |
| 718 { | |
| 719 ngx_connection_t *c; | |
| 720 ngx_stream_session_t *s; | |
| 721 ngx_stream_upstream_t *u; | |
| 722 | |
| 723 c = ev->data; | |
| 724 s = c->data; | |
| 725 | |
| 726 u = s->upstream; | |
| 727 | |
| 728 if (ev->write) { | |
| 729 ngx_stream_proxy_process(s, 0, 1); | |
| 730 | |
| 731 } else if (u->upstream_buf.start) { | |
| 732 ngx_stream_proxy_process(s, 1, 0); | |
| 733 } | |
| 734 } | |
| 735 | |
| 736 | |
| 737 static void | |
| 738 ngx_stream_proxy_connect_handler(ngx_event_t *ev) | |
| 739 { | |
| 740 ngx_connection_t *c; | |
| 741 ngx_stream_session_t *s; | |
| 742 | |
| 743 c = ev->data; | |
| 744 s = c->data; | |
| 745 | |
| 746 if (ev->timedout) { | |
| 747 ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "upstream timed out"); | |
| 748 ngx_stream_proxy_next_upstream(s); | |
| 749 return; | |
| 750 } | |
| 751 | |
| 752 ngx_del_timer(c->write); | |
| 753 | |
| 754 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, | |
| 755 "stream proxy connect upstream"); | |
| 756 | |
| 757 if (ngx_stream_proxy_test_connect(c) != NGX_OK) { | |
| 758 ngx_stream_proxy_next_upstream(s); | |
| 759 return; | |
| 760 } | |
| 761 | |
| 762 ngx_stream_proxy_init_upstream(s); | |
| 763 } | |
| 764 | |
| 765 | |
| 766 static ngx_int_t | |
| 767 ngx_stream_proxy_test_connect(ngx_connection_t *c) | |
| 768 { | |
| 769 int err; | |
| 770 socklen_t len; | |
| 771 | |
| 772 #if (NGX_HAVE_KQUEUE) | |
| 773 | |
| 774 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 775 err = c->write->kq_errno ? c->write->kq_errno : c->read->kq_errno; | |
| 776 | |
| 777 if (err) { | |
| 778 (void) ngx_connection_error(c, err, | |
| 779 "kevent() reported that connect() failed"); | |
| 780 return NGX_ERROR; | |
| 781 } | |
| 782 | |
| 783 } else | |
| 784 #endif | |
| 785 { | |
| 786 err = 0; | |
| 787 len = sizeof(int); | |
| 788 | |
| 789 /* | |
| 790 * BSDs and Linux return 0 and set a pending error in err | |
| 791 * Solaris returns -1 and sets errno | |
| 792 */ | |
| 793 | |
| 794 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 795 == -1) | |
| 796 { | |
| 797 err = ngx_socket_errno; | |
| 798 } | |
| 799 | |
| 800 if (err) { | |
| 801 (void) ngx_connection_error(c, err, "connect() failed"); | |
| 802 return NGX_ERROR; | |
| 803 } | |
| 804 } | |
| 805 | |
| 806 return NGX_OK; | |
| 807 } | |
| 808 | |
| 809 | |
| 810 static ngx_int_t | |
| 811 ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream, | |
| 812 ngx_uint_t do_write) | |
| 813 { | |
| 814 size_t size; | |
| 815 ssize_t n; | |
| 816 ngx_buf_t *b; | |
|
6124
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Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
817 ngx_uint_t flags; |
| 6115 | 818 ngx_connection_t *c, *pc, *src, *dst; |
| 819 ngx_log_handler_pt handler; | |
| 820 ngx_stream_upstream_t *u; | |
| 821 ngx_stream_proxy_srv_conf_t *pscf; | |
| 822 | |
| 823 u = s->upstream; | |
| 824 | |
| 825 c = s->connection; | |
| 826 pc = u->upstream_buf.start ? u->peer.connection : NULL; | |
| 827 | |
| 828 if (from_upstream) { | |
| 829 src = pc; | |
| 830 dst = c; | |
| 831 b = &u->upstream_buf; | |
| 832 | |
| 833 } else { | |
| 834 src = c; | |
| 835 dst = pc; | |
| 836 b = &u->downstream_buf; | |
| 837 } | |
| 838 | |
| 839 for ( ;; ) { | |
| 840 | |
| 841 if (do_write) { | |
| 842 | |
| 843 size = b->last - b->pos; | |
| 844 | |
| 845 if (size && dst && dst->write->ready) { | |
| 846 | |
| 847 n = dst->send(dst, b->pos, size); | |
| 848 | |
| 849 if (n == NGX_ERROR) { | |
| 850 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 851 return NGX_ERROR; | |
| 852 } | |
| 853 | |
| 854 if (n > 0) { | |
| 855 b->pos += n; | |
| 856 | |
| 857 if (b->pos == b->last) { | |
| 858 b->pos = b->start; | |
| 859 b->last = b->start; | |
| 860 } | |
| 861 } | |
| 862 } | |
| 863 } | |
| 864 | |
| 865 size = b->end - b->last; | |
| 866 | |
| 867 if (size && src->read->ready) { | |
| 868 | |
| 869 n = src->recv(src, b->last, size); | |
| 870 | |
| 871 if (n == NGX_AGAIN || n == 0) { | |
| 872 break; | |
| 873 } | |
| 874 | |
| 875 if (n > 0) { | |
| 876 if (from_upstream) { | |
| 877 u->received += n; | |
| 878 | |
| 879 } else { | |
| 880 s->received += n; | |
| 881 } | |
| 882 | |
| 883 do_write = 1; | |
| 884 b->last += n; | |
| 885 continue; | |
| 886 } | |
| 887 | |
| 888 if (n == NGX_ERROR) { | |
| 889 src->read->eof = 1; | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 break; | |
| 894 } | |
| 895 | |
| 896 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 897 | |
| 898 if (src->read->eof && (b->pos == b->last || (dst && dst->read->eof))) { | |
| 899 handler = c->log->handler; | |
| 900 c->log->handler = NULL; | |
| 901 | |
| 902 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 903 "%s disconnected" | |
| 904 ", bytes from/to client:%O/%O" | |
| 905 ", bytes from/to upstream:%O/%O", | |
| 906 from_upstream ? "upstream" : "client", | |
| 907 s->received, c->sent, u->received, pc ? pc->sent : 0); | |
| 908 | |
| 909 c->log->handler = handler; | |
| 910 | |
| 911 ngx_stream_proxy_finalize(s, NGX_OK); | |
| 912 return NGX_DONE; | |
| 913 } | |
| 914 | |
|
6124
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
915 flags = src->read->eof ? NGX_CLOSE_EVENT : 0; |
|
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
916 |
|
f1f222db290b
Stream: prevent repeated event notifications after eof.
Roman Arutyunyan <arut@nginx.com>
parents:
6115
diff
changeset
|
917 if (ngx_handle_read_event(src->read, flags) != NGX_OK) { |
| 6115 | 918 ngx_stream_proxy_finalize(s, NGX_ERROR); |
| 919 return NGX_ERROR; | |
| 920 } | |
| 921 | |
| 922 if (dst) { | |
| 923 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { | |
| 924 ngx_stream_proxy_finalize(s, NGX_ERROR); | |
| 925 return NGX_ERROR; | |
| 926 } | |
| 927 | |
| 928 ngx_add_timer(c->read, pscf->timeout); | |
| 929 } | |
| 930 | |
| 931 return NGX_OK; | |
| 932 } | |
| 933 | |
| 934 | |
| 935 static void | |
| 936 ngx_stream_proxy_next_upstream(ngx_stream_session_t *s) | |
| 937 { | |
| 938 ngx_msec_t timeout; | |
| 939 ngx_connection_t *pc; | |
| 940 ngx_stream_upstream_t *u; | |
| 941 ngx_stream_proxy_srv_conf_t *pscf; | |
| 942 | |
| 943 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 944 "stream proxy next upstream"); | |
| 945 | |
| 946 u = s->upstream; | |
| 947 | |
| 948 if (u->peer.sockaddr) { | |
| 949 u->peer.free(&u->peer, u->peer.data, NGX_PEER_FAILED); | |
| 950 u->peer.sockaddr = NULL; | |
| 951 } | |
| 952 | |
| 953 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module); | |
| 954 | |
| 955 timeout = pscf->next_upstream_timeout; | |
| 956 | |
| 957 if (u->peer.tries == 0 | |
| 958 || !pscf->next_upstream | |
| 959 || (timeout && ngx_current_msec - u->peer.start_time >= timeout)) | |
| 960 { | |
| 961 ngx_stream_proxy_finalize(s, NGX_DECLINED); | |
| 962 return; | |
| 963 } | |
| 964 | |
| 965 pc = u->peer.connection; | |
| 966 | |
| 967 if (pc) { | |
| 968 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 969 "close proxy upstream connection: %d", pc->fd); | |
| 970 | |
| 971 #if (NGX_STREAM_SSL) | |
| 972 if (pc->ssl) { | |
| 973 pc->ssl->no_wait_shutdown = 1; | |
| 974 pc->ssl->no_send_shutdown = 1; | |
| 975 | |
| 976 (void) ngx_ssl_shutdown(pc); | |
| 977 } | |
| 978 #endif | |
| 979 | |
| 980 ngx_close_connection(pc); | |
| 981 u->peer.connection = NULL; | |
| 982 } | |
| 983 | |
| 984 ngx_stream_proxy_connect(s); | |
| 985 } | |
| 986 | |
| 987 | |
| 988 static void | |
| 989 ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc) | |
| 990 { | |
| 991 ngx_connection_t *pc; | |
| 992 ngx_stream_upstream_t *u; | |
| 993 | |
| 994 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 995 "finalize stream proxy: %i", rc); | |
| 996 | |
| 997 u = s->upstream; | |
| 998 | |
| 999 if (u == NULL) { | |
| 1000 goto noupstream; | |
| 1001 } | |
| 1002 | |
| 1003 if (u->peer.free && u->peer.sockaddr) { | |
| 1004 u->peer.free(&u->peer, u->peer.data, 0); | |
| 1005 u->peer.sockaddr = NULL; | |
| 1006 } | |
| 1007 | |
| 1008 pc = u->peer.connection; | |
| 1009 | |
| 1010 if (pc) { | |
| 1011 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, | |
| 1012 "close stream proxy upstream connection: %d", pc->fd); | |
| 1013 | |
| 1014 #if (NGX_STREAM_SSL) | |
| 1015 if (pc->ssl) { | |
| 1016 pc->ssl->no_wait_shutdown = 1; | |
| 1017 (void) ngx_ssl_shutdown(pc); | |
| 1018 } | |
| 1019 #endif | |
| 1020 | |
| 1021 ngx_close_connection(pc); | |
| 1022 u->peer.connection = NULL; | |
| 1023 } | |
| 1024 | |
| 1025 noupstream: | |
| 1026 | |
| 1027 ngx_stream_close_connection(s->connection); | |
| 1028 } | |
| 1029 | |
| 1030 | |
| 1031 static u_char * | |
| 1032 ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
| 1033 { | |
| 1034 u_char *p; | |
| 1035 ngx_connection_t *pc; | |
| 1036 ngx_stream_session_t *s; | |
| 1037 ngx_stream_upstream_t *u; | |
| 1038 | |
| 1039 s = log->data; | |
| 1040 | |
| 1041 u = s->upstream; | |
| 1042 | |
| 1043 p = buf; | |
| 1044 | |
| 1045 if (u->peer.name) { | |
| 1046 p = ngx_snprintf(p, len, ", upstream: \"%V\"", u->peer.name); | |
| 1047 len -= p - buf; | |
| 1048 } | |
| 1049 | |
| 1050 pc = u->peer.connection; | |
| 1051 | |
| 1052 p = ngx_snprintf(p, len, | |
| 1053 ", bytes from/to client:%O/%O" | |
| 1054 ", bytes from/to upstream:%O/%O", | |
| 1055 s->received, s->connection->sent, | |
| 1056 u->received, pc ? pc->sent : 0); | |
| 1057 | |
| 1058 return p; | |
| 1059 } | |
| 1060 | |
| 1061 | |
| 1062 static void * | |
| 1063 ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf) | |
| 1064 { | |
| 1065 ngx_stream_proxy_srv_conf_t *conf; | |
| 1066 | |
| 1067 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_proxy_srv_conf_t)); | |
| 1068 if (conf == NULL) { | |
| 1069 return NULL; | |
| 1070 } | |
| 1071 | |
| 1072 /* | |
| 1073 * set by ngx_pcalloc(): | |
| 1074 * | |
| 1075 * conf->ssl_protocols = 0; | |
| 1076 * conf->ssl_ciphers = { 0, NULL }; | |
| 1077 * conf->ssl_name = { 0, NULL }; | |
| 1078 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 1079 * conf->ssl_crl = { 0, NULL }; | |
| 1080 * conf->ssl_certificate = { 0, NULL }; | |
| 1081 * conf->ssl_certificate_key = { 0, NULL }; | |
| 1082 * | |
| 1083 * conf->ssl = NULL; | |
| 1084 * conf->upstream = NULL; | |
| 1085 */ | |
| 1086 | |
| 1087 conf->connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 1088 conf->timeout = NGX_CONF_UNSET_MSEC; | |
| 1089 conf->next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 1090 conf->downstream_buf_size = NGX_CONF_UNSET_SIZE; | |
| 1091 conf->upstream_buf_size = NGX_CONF_UNSET_SIZE; | |
| 1092 conf->next_upstream_tries = NGX_CONF_UNSET_UINT; | |
| 1093 conf->next_upstream = NGX_CONF_UNSET; | |
| 1094 | |
| 1095 #if (NGX_STREAM_SSL) | |
| 1096 conf->ssl_enable = NGX_CONF_UNSET; | |
| 1097 conf->ssl_session_reuse = NGX_CONF_UNSET; | |
| 1098 conf->ssl_server_name = NGX_CONF_UNSET; | |
| 1099 conf->ssl_verify = NGX_CONF_UNSET; | |
| 1100 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 1101 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 1102 #endif | |
| 1103 | |
| 1104 return conf; | |
| 1105 } | |
| 1106 | |
| 1107 | |
| 1108 static char * | |
| 1109 ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1110 { | |
| 1111 ngx_stream_proxy_srv_conf_t *prev = parent; | |
| 1112 ngx_stream_proxy_srv_conf_t *conf = child; | |
| 1113 | |
| 1114 ngx_conf_merge_msec_value(conf->connect_timeout, | |
| 1115 prev->connect_timeout, 60000); | |
| 1116 | |
| 1117 ngx_conf_merge_msec_value(conf->timeout, | |
| 1118 prev->timeout, 10 * 60000); | |
| 1119 | |
| 1120 ngx_conf_merge_msec_value(conf->next_upstream_timeout, | |
| 1121 prev->next_upstream_timeout, 0); | |
| 1122 | |
| 1123 ngx_conf_merge_size_value(conf->downstream_buf_size, | |
| 1124 prev->downstream_buf_size, 16384); | |
| 1125 | |
| 1126 ngx_conf_merge_size_value(conf->upstream_buf_size, | |
| 1127 prev->upstream_buf_size, 16384); | |
| 1128 | |
| 1129 ngx_conf_merge_uint_value(conf->next_upstream_tries, | |
| 1130 prev->next_upstream_tries, 0); | |
| 1131 | |
| 1132 ngx_conf_merge_value(conf->next_upstream, prev->next_upstream, 1); | |
| 1133 | |
| 1134 #if (NGX_STREAM_SSL) | |
| 1135 | |
| 1136 ngx_conf_merge_value(conf->ssl_enable, prev->ssl_enable, 0); | |
| 1137 | |
| 1138 ngx_conf_merge_value(conf->ssl_session_reuse, | |
| 1139 prev->ssl_session_reuse, 1); | |
| 1140 | |
| 1141 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 1142 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3 | |
| 1143 |NGX_SSL_TLSv1|NGX_SSL_TLSv1_1 | |
| 1144 |NGX_SSL_TLSv1_2)); | |
| 1145 | |
| 1146 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, "DEFAULT"); | |
| 1147 | |
| 1148 ngx_conf_merge_str_value(conf->ssl_name, prev->ssl_name, ""); | |
| 1149 | |
| 1150 ngx_conf_merge_value(conf->ssl_server_name, prev->ssl_server_name, 0); | |
| 1151 | |
| 1152 ngx_conf_merge_value(conf->ssl_verify, prev->ssl_verify, 0); | |
| 1153 | |
| 1154 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 1155 prev->ssl_verify_depth, 1); | |
| 1156 | |
| 1157 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 1158 prev->ssl_trusted_certificate, ""); | |
| 1159 | |
| 1160 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 1161 | |
| 1162 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 1163 prev->ssl_certificate, ""); | |
| 1164 | |
| 1165 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 1166 prev->ssl_certificate_key, ""); | |
| 1167 | |
| 1168 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 1169 | |
| 1170 if (conf->ssl_enable && ngx_stream_proxy_set_ssl(cf, conf) != NGX_OK) { | |
| 1171 return NGX_CONF_ERROR; | |
| 1172 } | |
| 1173 | |
| 1174 #endif | |
| 1175 | |
| 1176 return NGX_CONF_OK; | |
| 1177 } | |
| 1178 | |
| 1179 | |
| 1180 #if (NGX_STREAM_SSL) | |
| 1181 | |
| 1182 static ngx_int_t | |
| 1183 ngx_stream_proxy_set_ssl(ngx_conf_t *cf, ngx_stream_proxy_srv_conf_t *pscf) | |
| 1184 { | |
| 1185 ngx_pool_cleanup_t *cln; | |
| 1186 | |
| 1187 pscf->ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 1188 if (pscf->ssl == NULL) { | |
| 1189 return NGX_ERROR; | |
| 1190 } | |
| 1191 | |
| 1192 pscf->ssl->log = cf->log; | |
| 1193 | |
| 1194 if (ngx_ssl_create(pscf->ssl, pscf->ssl_protocols, NULL) != NGX_OK) { | |
| 1195 return NGX_ERROR; | |
| 1196 } | |
| 1197 | |
| 1198 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 1199 if (cln == NULL) { | |
| 1200 return NGX_ERROR; | |
| 1201 } | |
| 1202 | |
| 1203 cln->handler = ngx_ssl_cleanup_ctx; | |
| 1204 cln->data = pscf->ssl; | |
| 1205 | |
| 1206 if (pscf->ssl_certificate.len) { | |
| 1207 | |
| 1208 if (pscf->ssl_certificate_key.len == 0) { | |
| 1209 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1210 "no \"proxy_ssl_certificate_key\" is defined " | |
| 1211 "for certificate \"%V\"", &pscf->ssl_certificate); | |
| 1212 return NGX_ERROR; | |
| 1213 } | |
| 1214 | |
| 1215 if (ngx_ssl_certificate(cf, pscf->ssl, &pscf->ssl_certificate, | |
| 1216 &pscf->ssl_certificate_key, pscf->ssl_passwords) | |
| 1217 != NGX_OK) | |
| 1218 { | |
| 1219 return NGX_ERROR; | |
| 1220 } | |
| 1221 } | |
| 1222 | |
| 1223 if (SSL_CTX_set_cipher_list(pscf->ssl->ctx, | |
| 1224 (const char *) pscf->ssl_ciphers.data) | |
| 1225 == 0) | |
| 1226 { | |
| 1227 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1228 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
| 1229 &pscf->ssl_ciphers); | |
| 1230 return NGX_ERROR; | |
| 1231 } | |
| 1232 | |
| 1233 if (pscf->ssl_verify) { | |
| 1234 if (pscf->ssl_trusted_certificate.len == 0) { | |
| 1235 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1236 "no proxy_ssl_trusted_certificate for proxy_ssl_verify"); | |
| 1237 return NGX_ERROR; | |
| 1238 } | |
| 1239 | |
| 1240 if (ngx_ssl_trusted_certificate(cf, pscf->ssl, | |
| 1241 &pscf->ssl_trusted_certificate, | |
| 1242 pscf->ssl_verify_depth) | |
| 1243 != NGX_OK) | |
| 1244 { | |
| 1245 return NGX_ERROR; | |
| 1246 } | |
| 1247 | |
| 1248 if (ngx_ssl_crl(cf, pscf->ssl, &pscf->ssl_crl) != NGX_OK) { | |
| 1249 return NGX_ERROR; | |
| 1250 } | |
| 1251 } | |
| 1252 | |
| 1253 return NGX_OK; | |
| 1254 } | |
| 1255 | |
| 1256 #endif | |
| 1257 | |
| 1258 | |
| 1259 static char * | |
| 1260 ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 1261 { | |
| 1262 ngx_stream_proxy_srv_conf_t *pscf = conf; | |
| 1263 | |
| 1264 ngx_url_t u; | |
| 1265 ngx_str_t *value, *url; | |
| 1266 ngx_stream_core_srv_conf_t *cscf; | |
| 1267 | |
| 1268 if (pscf->upstream) { | |
| 1269 return "is duplicate"; | |
| 1270 } | |
| 1271 | |
| 1272 cscf = ngx_stream_conf_get_module_srv_conf(cf, ngx_stream_core_module); | |
| 1273 | |
| 1274 cscf->handler = ngx_stream_proxy_handler; | |
| 1275 | |
| 1276 value = cf->args->elts; | |
| 1277 | |
| 1278 url = &value[1]; | |
| 1279 | |
| 1280 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 1281 | |
| 1282 u.url = *url; | |
| 1283 u.no_resolve = 1; | |
| 1284 | |
| 1285 pscf->upstream = ngx_stream_upstream_add(cf, &u, 0); | |
| 1286 if (pscf->upstream == NULL) { | |
| 1287 return NGX_CONF_ERROR; | |
| 1288 } | |
| 1289 | |
| 1290 return NGX_CONF_OK; | |
| 1291 } |