Mercurial > hg > nginx-quic
annotate src/stream/ngx_stream_core_module.c @ 6414:fbd5d6c19798
release-1.9.12 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 24 Feb 2016 17:53:23 +0300 |
parents | cf5e822cf470 |
children | 8f038068f4bc |
rev | line source |
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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 static void *ngx_stream_core_create_main_conf(ngx_conf_t *cf); | |
14 static void *ngx_stream_core_create_srv_conf(ngx_conf_t *cf); | |
15 static char *ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
16 void *child); | |
17 static char *ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, | |
18 void *conf); | |
19 static char *ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
20 void *conf); | |
21 static char *ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, | |
22 void *conf); | |
23 | |
24 | |
25 static ngx_command_t ngx_stream_core_commands[] = { | |
26 | |
27 { ngx_string("server"), | |
28 NGX_STREAM_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
29 ngx_stream_core_server, | |
30 0, | |
31 0, | |
32 NULL }, | |
33 | |
34 { ngx_string("listen"), | |
35 NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
36 ngx_stream_core_listen, | |
37 NGX_STREAM_SRV_CONF_OFFSET, | |
38 0, | |
39 NULL }, | |
40 | |
41 { ngx_string("error_log"), | |
42 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
43 ngx_stream_core_error_log, | |
44 NGX_STREAM_SRV_CONF_OFFSET, | |
45 0, | |
46 NULL }, | |
47 | |
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48 { ngx_string("tcp_nodelay"), |
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49 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, |
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50 ngx_conf_set_flag_slot, |
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51 NGX_STREAM_SRV_CONF_OFFSET, |
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52 offsetof(ngx_stream_core_srv_conf_t, tcp_nodelay), |
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53 NULL }, |
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54 |
6115 | 55 ngx_null_command |
56 }; | |
57 | |
58 | |
59 static ngx_stream_module_t ngx_stream_core_module_ctx = { | |
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60 NULL, /* postconfiguration */ |
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61 |
6115 | 62 ngx_stream_core_create_main_conf, /* create main configuration */ |
63 NULL, /* init main configuration */ | |
64 | |
65 ngx_stream_core_create_srv_conf, /* create server configuration */ | |
66 ngx_stream_core_merge_srv_conf /* merge server configuration */ | |
67 }; | |
68 | |
69 | |
70 ngx_module_t ngx_stream_core_module = { | |
71 NGX_MODULE_V1, | |
72 &ngx_stream_core_module_ctx, /* module context */ | |
73 ngx_stream_core_commands, /* module directives */ | |
74 NGX_STREAM_MODULE, /* module type */ | |
75 NULL, /* init master */ | |
76 NULL, /* init module */ | |
77 NULL, /* init process */ | |
78 NULL, /* init thread */ | |
79 NULL, /* exit thread */ | |
80 NULL, /* exit process */ | |
81 NULL, /* exit master */ | |
82 NGX_MODULE_V1_PADDING | |
83 }; | |
84 | |
85 | |
86 static void * | |
87 ngx_stream_core_create_main_conf(ngx_conf_t *cf) | |
88 { | |
89 ngx_stream_core_main_conf_t *cmcf; | |
90 | |
91 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_main_conf_t)); | |
92 if (cmcf == NULL) { | |
93 return NULL; | |
94 } | |
95 | |
96 if (ngx_array_init(&cmcf->servers, cf->pool, 4, | |
97 sizeof(ngx_stream_core_srv_conf_t *)) | |
98 != NGX_OK) | |
99 { | |
100 return NULL; | |
101 } | |
102 | |
103 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_stream_listen_t)) | |
104 != NGX_OK) | |
105 { | |
106 return NULL; | |
107 } | |
108 | |
109 return cmcf; | |
110 } | |
111 | |
112 | |
113 static void * | |
114 ngx_stream_core_create_srv_conf(ngx_conf_t *cf) | |
115 { | |
116 ngx_stream_core_srv_conf_t *cscf; | |
117 | |
118 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_srv_conf_t)); | |
119 if (cscf == NULL) { | |
120 return NULL; | |
121 } | |
122 | |
123 /* | |
124 * set by ngx_pcalloc(): | |
125 * | |
126 * cscf->handler = NULL; | |
127 * cscf->error_log = NULL; | |
128 */ | |
129 | |
130 cscf->file_name = cf->conf_file->file.name.data; | |
131 cscf->line = cf->conf_file->line; | |
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132 cscf->tcp_nodelay = NGX_CONF_UNSET; |
6115 | 133 |
134 return cscf; | |
135 } | |
136 | |
137 | |
138 static char * | |
139 ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
140 { | |
141 ngx_stream_core_srv_conf_t *prev = parent; | |
142 ngx_stream_core_srv_conf_t *conf = child; | |
143 | |
144 if (conf->handler == NULL) { | |
145 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
146 "no handler for server in %s:%ui", | |
147 conf->file_name, conf->line); | |
148 return NGX_CONF_ERROR; | |
149 } | |
150 | |
151 if (conf->error_log == NULL) { | |
152 if (prev->error_log) { | |
153 conf->error_log = prev->error_log; | |
154 } else { | |
155 conf->error_log = &cf->cycle->new_log; | |
156 } | |
157 } | |
158 | |
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159 ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1); |
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160 |
6115 | 161 return NGX_CONF_OK; |
162 } | |
163 | |
164 | |
165 static char * | |
166 ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
167 { | |
168 ngx_stream_core_srv_conf_t *cscf = conf; | |
169 | |
170 return ngx_log_set_log(cf, &cscf->error_log); | |
171 } | |
172 | |
173 | |
174 static char * | |
175 ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
176 { | |
177 char *rv; | |
178 void *mconf; | |
179 ngx_uint_t m; | |
180 ngx_conf_t pcf; | |
181 ngx_stream_module_t *module; | |
182 ngx_stream_conf_ctx_t *ctx, *stream_ctx; | |
183 ngx_stream_core_srv_conf_t *cscf, **cscfp; | |
184 ngx_stream_core_main_conf_t *cmcf; | |
185 | |
186 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); | |
187 if (ctx == NULL) { | |
188 return NGX_CONF_ERROR; | |
189 } | |
190 | |
191 stream_ctx = cf->ctx; | |
192 ctx->main_conf = stream_ctx->main_conf; | |
193 | |
194 /* the server{}'s srv_conf */ | |
195 | |
196 ctx->srv_conf = ngx_pcalloc(cf->pool, | |
197 sizeof(void *) * ngx_stream_max_module); | |
198 if (ctx->srv_conf == NULL) { | |
199 return NGX_CONF_ERROR; | |
200 } | |
201 | |
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202 for (m = 0; cf->cycle->modules[m]; m++) { |
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203 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
6115 | 204 continue; |
205 } | |
206 | |
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207 module = cf->cycle->modules[m]->ctx; |
6115 | 208 |
209 if (module->create_srv_conf) { | |
210 mconf = module->create_srv_conf(cf); | |
211 if (mconf == NULL) { | |
212 return NGX_CONF_ERROR; | |
213 } | |
214 | |
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215 ctx->srv_conf[cf->cycle->modules[m]->ctx_index] = mconf; |
6115 | 216 } |
217 } | |
218 | |
219 /* the server configuration context */ | |
220 | |
221 cscf = ctx->srv_conf[ngx_stream_core_module.ctx_index]; | |
222 cscf->ctx = ctx; | |
223 | |
224 cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index]; | |
225 | |
226 cscfp = ngx_array_push(&cmcf->servers); | |
227 if (cscfp == NULL) { | |
228 return NGX_CONF_ERROR; | |
229 } | |
230 | |
231 *cscfp = cscf; | |
232 | |
233 | |
234 /* parse inside server{} */ | |
235 | |
236 pcf = *cf; | |
237 cf->ctx = ctx; | |
238 cf->cmd_type = NGX_STREAM_SRV_CONF; | |
239 | |
240 rv = ngx_conf_parse(cf, NULL); | |
241 | |
242 *cf = pcf; | |
243 | |
244 return rv; | |
245 } | |
246 | |
247 | |
248 static char * | |
249 ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
250 { | |
251 size_t len, off; | |
252 in_port_t port; | |
253 ngx_str_t *value; | |
254 ngx_url_t u; | |
255 ngx_uint_t i; | |
256 struct sockaddr *sa; | |
257 struct sockaddr_in *sin; | |
258 ngx_stream_listen_t *ls; | |
259 ngx_stream_core_main_conf_t *cmcf; | |
260 #if (NGX_HAVE_INET6) | |
261 struct sockaddr_in6 *sin6; | |
262 #endif | |
263 | |
264 value = cf->args->elts; | |
265 | |
266 ngx_memzero(&u, sizeof(ngx_url_t)); | |
267 | |
268 u.url = value[1]; | |
269 u.listen = 1; | |
270 | |
271 if (ngx_parse_url(cf->pool, &u) != NGX_OK) { | |
272 if (u.err) { | |
273 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
274 "%s in \"%V\" of the \"listen\" directive", | |
275 u.err, &u.url); | |
276 } | |
277 | |
278 return NGX_CONF_ERROR; | |
279 } | |
280 | |
281 cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); | |
282 | |
283 ls = cmcf->listen.elts; | |
284 | |
285 for (i = 0; i < cmcf->listen.nelts; i++) { | |
286 | |
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287 sa = &ls[i].u.sockaddr; |
6115 | 288 |
289 if (sa->sa_family != u.family) { | |
290 continue; | |
291 } | |
292 | |
293 switch (sa->sa_family) { | |
294 | |
295 #if (NGX_HAVE_INET6) | |
296 case AF_INET6: | |
297 off = offsetof(struct sockaddr_in6, sin6_addr); | |
298 len = 16; | |
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299 sin6 = &ls[i].u.sockaddr_in6; |
6115 | 300 port = sin6->sin6_port; |
301 break; | |
302 #endif | |
303 | |
304 #if (NGX_HAVE_UNIX_DOMAIN) | |
305 case AF_UNIX: | |
306 off = offsetof(struct sockaddr_un, sun_path); | |
307 len = sizeof(((struct sockaddr_un *) sa)->sun_path); | |
308 port = 0; | |
309 break; | |
310 #endif | |
311 | |
312 default: /* AF_INET */ | |
313 off = offsetof(struct sockaddr_in, sin_addr); | |
314 len = 4; | |
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315 sin = &ls[i].u.sockaddr_in; |
6115 | 316 port = sin->sin_port; |
317 break; | |
318 } | |
319 | |
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320 if (ngx_memcmp(ls[i].u.sockaddr_data + off, u.sockaddr + off, len) |
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321 != 0) |
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322 { |
6115 | 323 continue; |
324 } | |
325 | |
326 if (port != u.port) { | |
327 continue; | |
328 } | |
329 | |
330 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
331 "duplicate \"%V\" address and port pair", &u.url); | |
332 return NGX_CONF_ERROR; | |
333 } | |
334 | |
335 ls = ngx_array_push(&cmcf->listen); | |
336 if (ls == NULL) { | |
337 return NGX_CONF_ERROR; | |
338 } | |
339 | |
340 ngx_memzero(ls, sizeof(ngx_stream_listen_t)); | |
341 | |
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342 ngx_memcpy(&ls->u.sockaddr, u.sockaddr, u.socklen); |
6115 | 343 |
344 ls->socklen = u.socklen; | |
6172 | 345 ls->backlog = NGX_LISTEN_BACKLOG; |
6115 | 346 ls->wildcard = u.wildcard; |
347 ls->ctx = cf->ctx; | |
348 | |
349 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
350 ls->ipv6only = 1; | |
351 #endif | |
352 | |
353 for (i = 2; i < cf->args->nelts; i++) { | |
354 | |
355 if (ngx_strcmp(value[i].data, "bind") == 0) { | |
356 ls->bind = 1; | |
357 continue; | |
358 } | |
359 | |
6172 | 360 if (ngx_strncmp(value[i].data, "backlog=", 8) == 0) { |
361 ls->backlog = ngx_atoi(value[i].data + 8, value[i].len - 8); | |
362 ls->bind = 1; | |
363 | |
364 if (ls->backlog == NGX_ERROR || ls->backlog == 0) { | |
365 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
366 "invalid backlog \"%V\"", &value[i]); | |
367 return NGX_CONF_ERROR; | |
368 } | |
369 | |
370 continue; | |
371 } | |
372 | |
6115 | 373 if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { |
374 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
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375 u_char buf[NGX_SOCKADDR_STRLEN]; |
6115 | 376 |
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377 sa = &ls->u.sockaddr; |
6115 | 378 |
379 if (sa->sa_family == AF_INET6) { | |
380 | |
381 if (ngx_strcmp(&value[i].data[10], "n") == 0) { | |
382 ls->ipv6only = 1; | |
383 | |
384 } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { | |
385 ls->ipv6only = 0; | |
386 | |
387 } else { | |
388 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
389 "invalid ipv6only flags \"%s\"", | |
390 &value[i].data[9]); | |
391 return NGX_CONF_ERROR; | |
392 } | |
393 | |
394 ls->bind = 1; | |
395 | |
396 } else { | |
397 len = ngx_sock_ntop(sa, ls->socklen, buf, | |
398 NGX_SOCKADDR_STRLEN, 1); | |
399 | |
400 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
401 "ipv6only is not supported " | |
402 "on addr \"%*s\", ignored", len, buf); | |
403 } | |
404 | |
405 continue; | |
406 #else | |
407 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
408 "bind ipv6only is not supported " | |
409 "on this platform"); | |
410 return NGX_CONF_ERROR; | |
411 #endif | |
412 } | |
413 | |
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414 if (ngx_strcmp(value[i].data, "reuseport") == 0) { |
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415 #if (NGX_HAVE_REUSEPORT) |
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416 ls->reuseport = 1; |
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417 ls->bind = 1; |
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418 #else |
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419 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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420 "reuseport is not supported " |
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421 "on this platform, ignored"); |
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422 #endif |
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423 continue; |
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424 } |
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425 |
6115 | 426 if (ngx_strcmp(value[i].data, "ssl") == 0) { |
427 #if (NGX_STREAM_SSL) | |
428 ls->ssl = 1; | |
429 continue; | |
430 #else | |
431 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
432 "the \"ssl\" parameter requires " | |
433 "ngx_stream_ssl_module"); | |
434 return NGX_CONF_ERROR; | |
435 #endif | |
436 } | |
437 | |
438 if (ngx_strncmp(value[i].data, "so_keepalive=", 13) == 0) { | |
439 | |
440 if (ngx_strcmp(&value[i].data[13], "on") == 0) { | |
441 ls->so_keepalive = 1; | |
442 | |
443 } else if (ngx_strcmp(&value[i].data[13], "off") == 0) { | |
444 ls->so_keepalive = 2; | |
445 | |
446 } else { | |
447 | |
448 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
449 u_char *p, *end; | |
450 ngx_str_t s; | |
451 | |
452 end = value[i].data + value[i].len; | |
453 s.data = value[i].data + 13; | |
454 | |
455 p = ngx_strlchr(s.data, end, ':'); | |
456 if (p == NULL) { | |
457 p = end; | |
458 } | |
459 | |
460 if (p > s.data) { | |
461 s.len = p - s.data; | |
462 | |
463 ls->tcp_keepidle = ngx_parse_time(&s, 1); | |
464 if (ls->tcp_keepidle == (time_t) NGX_ERROR) { | |
465 goto invalid_so_keepalive; | |
466 } | |
467 } | |
468 | |
469 s.data = (p < end) ? (p + 1) : end; | |
470 | |
471 p = ngx_strlchr(s.data, end, ':'); | |
472 if (p == NULL) { | |
473 p = end; | |
474 } | |
475 | |
476 if (p > s.data) { | |
477 s.len = p - s.data; | |
478 | |
479 ls->tcp_keepintvl = ngx_parse_time(&s, 1); | |
480 if (ls->tcp_keepintvl == (time_t) NGX_ERROR) { | |
481 goto invalid_so_keepalive; | |
482 } | |
483 } | |
484 | |
485 s.data = (p < end) ? (p + 1) : end; | |
486 | |
487 if (s.data < end) { | |
488 s.len = end - s.data; | |
489 | |
490 ls->tcp_keepcnt = ngx_atoi(s.data, s.len); | |
491 if (ls->tcp_keepcnt == NGX_ERROR) { | |
492 goto invalid_so_keepalive; | |
493 } | |
494 } | |
495 | |
496 if (ls->tcp_keepidle == 0 && ls->tcp_keepintvl == 0 | |
497 && ls->tcp_keepcnt == 0) | |
498 { | |
499 goto invalid_so_keepalive; | |
500 } | |
501 | |
502 ls->so_keepalive = 1; | |
503 | |
504 #else | |
505 | |
506 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
507 "the \"so_keepalive\" parameter accepts " | |
508 "only \"on\" or \"off\" on this platform"); | |
509 return NGX_CONF_ERROR; | |
510 | |
511 #endif | |
512 } | |
513 | |
514 ls->bind = 1; | |
515 | |
516 continue; | |
517 | |
518 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
519 invalid_so_keepalive: | |
520 | |
521 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
522 "invalid so_keepalive value: \"%s\"", | |
523 &value[i].data[13]); | |
524 return NGX_CONF_ERROR; | |
525 #endif | |
526 } | |
527 | |
528 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
529 "the invalid \"%V\" parameter", &value[i]); | |
530 return NGX_CONF_ERROR; | |
531 } | |
532 | |
533 return NGX_CONF_OK; | |
534 } |