290
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
644
|
4 * Copyright (C) Nginx, Inc.
|
290
|
5 */
|
|
6
|
|
7
|
|
8 #include <ngx_config.h>
|
|
9 #include <ngx_core.h>
|
|
10 #include <ngx_event.h>
|
|
11 #include <ngx_mail.h>
|
|
12
|
|
13
|
|
14 static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf);
|
|
15 static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf);
|
|
16 static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent,
|
|
17 void *child);
|
|
18 static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
19 void *conf);
|
|
20 static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
21 void *conf);
|
336
|
22 static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd,
|
290
|
23 void *conf);
|
366
|
24 static char *ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
25 void *conf);
|
290
|
26
|
|
27
|
|
28 static ngx_command_t ngx_mail_core_commands[] = {
|
|
29
|
|
30 { ngx_string("server"),
|
|
31 NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
|
|
32 ngx_mail_core_server,
|
|
33 0,
|
|
34 0,
|
|
35 NULL },
|
|
36
|
|
37 { ngx_string("listen"),
|
|
38 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12,
|
|
39 ngx_mail_core_listen,
|
336
|
40 NGX_MAIL_SRV_CONF_OFFSET,
|
290
|
41 0,
|
|
42 NULL },
|
|
43
|
|
44 { ngx_string("protocol"),
|
|
45 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
336
|
46 ngx_mail_core_protocol,
|
290
|
47 NGX_MAIL_SRV_CONF_OFFSET,
|
336
|
48 0,
|
290
|
49 NULL },
|
|
50
|
|
51 { ngx_string("so_keepalive"),
|
|
52 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG,
|
|
53 ngx_conf_set_flag_slot,
|
|
54 NGX_MAIL_SRV_CONF_OFFSET,
|
|
55 offsetof(ngx_mail_core_srv_conf_t, so_keepalive),
|
|
56 NULL },
|
|
57
|
|
58 { ngx_string("timeout"),
|
|
59 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
60 ngx_conf_set_msec_slot,
|
|
61 NGX_MAIL_SRV_CONF_OFFSET,
|
|
62 offsetof(ngx_mail_core_srv_conf_t, timeout),
|
|
63 NULL },
|
|
64
|
|
65 { ngx_string("server_name"),
|
|
66 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
67 ngx_conf_set_str_slot,
|
|
68 NGX_MAIL_SRV_CONF_OFFSET,
|
|
69 offsetof(ngx_mail_core_srv_conf_t, server_name),
|
|
70 NULL },
|
|
71
|
366
|
72 { ngx_string("resolver"),
|
|
73 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
74 ngx_mail_core_resolver,
|
|
75 NGX_MAIL_SRV_CONF_OFFSET,
|
|
76 0,
|
|
77 NULL },
|
|
78
|
|
79 { ngx_string("resolver_timeout"),
|
|
80 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
81 ngx_conf_set_msec_slot,
|
|
82 NGX_MAIL_SRV_CONF_OFFSET,
|
|
83 offsetof(ngx_mail_core_srv_conf_t, resolver_timeout),
|
|
84 NULL },
|
|
85
|
290
|
86 ngx_null_command
|
|
87 };
|
|
88
|
|
89
|
|
90 static ngx_mail_module_t ngx_mail_core_module_ctx = {
|
336
|
91 NULL, /* protocol */
|
|
92
|
290
|
93 ngx_mail_core_create_main_conf, /* create main configuration */
|
|
94 NULL, /* init main configuration */
|
|
95
|
|
96 ngx_mail_core_create_srv_conf, /* create server configuration */
|
|
97 ngx_mail_core_merge_srv_conf /* merge server configuration */
|
|
98 };
|
|
99
|
|
100
|
|
101 ngx_module_t ngx_mail_core_module = {
|
|
102 NGX_MODULE_V1,
|
|
103 &ngx_mail_core_module_ctx, /* module context */
|
|
104 ngx_mail_core_commands, /* module directives */
|
|
105 NGX_MAIL_MODULE, /* module type */
|
|
106 NULL, /* init master */
|
|
107 NULL, /* init module */
|
|
108 NULL, /* init process */
|
|
109 NULL, /* init thread */
|
|
110 NULL, /* exit thread */
|
|
111 NULL, /* exit process */
|
|
112 NULL, /* exit master */
|
|
113 NGX_MODULE_V1_PADDING
|
|
114 };
|
|
115
|
|
116
|
|
117 static void *
|
|
118 ngx_mail_core_create_main_conf(ngx_conf_t *cf)
|
|
119 {
|
|
120 ngx_mail_core_main_conf_t *cmcf;
|
|
121
|
|
122 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t));
|
|
123 if (cmcf == NULL) {
|
496
|
124 return NULL;
|
290
|
125 }
|
|
126
|
|
127 if (ngx_array_init(&cmcf->servers, cf->pool, 4,
|
|
128 sizeof(ngx_mail_core_srv_conf_t *))
|
|
129 != NGX_OK)
|
|
130 {
|
496
|
131 return NULL;
|
290
|
132 }
|
|
133
|
|
134 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t))
|
|
135 != NGX_OK)
|
|
136 {
|
496
|
137 return NULL;
|
290
|
138 }
|
|
139
|
|
140 return cmcf;
|
|
141 }
|
|
142
|
|
143
|
|
144 static void *
|
|
145 ngx_mail_core_create_srv_conf(ngx_conf_t *cf)
|
|
146 {
|
|
147 ngx_mail_core_srv_conf_t *cscf;
|
|
148
|
|
149 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t));
|
|
150 if (cscf == NULL) {
|
|
151 return NULL;
|
|
152 }
|
|
153
|
336
|
154 /*
|
|
155 * set by ngx_pcalloc():
|
|
156 *
|
|
157 * cscf->protocol = NULL;
|
|
158 */
|
|
159
|
290
|
160 cscf->timeout = NGX_CONF_UNSET_MSEC;
|
366
|
161 cscf->resolver_timeout = NGX_CONF_UNSET_MSEC;
|
290
|
162 cscf->so_keepalive = NGX_CONF_UNSET;
|
|
163
|
366
|
164 cscf->resolver = NGX_CONF_UNSET_PTR;
|
|
165
|
|
166 cscf->file_name = cf->conf_file->file.name.data;
|
|
167 cscf->line = cf->conf_file->line;
|
|
168
|
290
|
169 return cscf;
|
|
170 }
|
|
171
|
|
172
|
|
173 static char *
|
|
174 ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
175 {
|
|
176 ngx_mail_core_srv_conf_t *prev = parent;
|
|
177 ngx_mail_core_srv_conf_t *conf = child;
|
|
178
|
|
179 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
366
|
180 ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout,
|
|
181 30000);
|
290
|
182
|
336
|
183 ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0);
|
290
|
184
|
|
185
|
|
186 ngx_conf_merge_str_value(conf->server_name, prev->server_name, "");
|
|
187
|
|
188 if (conf->server_name.len == 0) {
|
376
|
189 conf->server_name = cf->cycle->hostname;
|
290
|
190 }
|
|
191
|
336
|
192 if (conf->protocol == NULL) {
|
|
193 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
194 "unknown mail protocol for server in %s:%ui",
|
|
195 conf->file_name, conf->line);
|
290
|
196 return NGX_CONF_ERROR;
|
|
197 }
|
|
198
|
366
|
199 ngx_conf_merge_ptr_value(conf->resolver, prev->resolver, NULL);
|
|
200
|
290
|
201 return NGX_CONF_OK;
|
|
202 }
|
|
203
|
|
204
|
|
205 static char *
|
|
206 ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
207 {
|
|
208 char *rv;
|
|
209 void *mconf;
|
|
210 ngx_uint_t m;
|
|
211 ngx_conf_t pcf;
|
|
212 ngx_mail_module_t *module;
|
|
213 ngx_mail_conf_ctx_t *ctx, *mail_ctx;
|
|
214 ngx_mail_core_srv_conf_t *cscf, **cscfp;
|
|
215 ngx_mail_core_main_conf_t *cmcf;
|
|
216
|
|
217 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t));
|
|
218 if (ctx == NULL) {
|
|
219 return NGX_CONF_ERROR;
|
|
220 }
|
|
221
|
|
222 mail_ctx = cf->ctx;
|
|
223 ctx->main_conf = mail_ctx->main_conf;
|
|
224
|
|
225 /* the server{}'s srv_conf */
|
|
226
|
|
227 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module);
|
|
228 if (ctx->srv_conf == NULL) {
|
|
229 return NGX_CONF_ERROR;
|
|
230 }
|
|
231
|
|
232 for (m = 0; ngx_modules[m]; m++) {
|
|
233 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
|
|
234 continue;
|
|
235 }
|
|
236
|
|
237 module = ngx_modules[m]->ctx;
|
|
238
|
|
239 if (module->create_srv_conf) {
|
|
240 mconf = module->create_srv_conf(cf);
|
|
241 if (mconf == NULL) {
|
|
242 return NGX_CONF_ERROR;
|
|
243 }
|
|
244
|
|
245 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
246 }
|
|
247 }
|
|
248
|
|
249 /* the server configuration context */
|
|
250
|
|
251 cscf = ctx->srv_conf[ngx_mail_core_module.ctx_index];
|
|
252 cscf->ctx = ctx;
|
|
253
|
|
254 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index];
|
|
255
|
|
256 cscfp = ngx_array_push(&cmcf->servers);
|
|
257 if (cscfp == NULL) {
|
|
258 return NGX_CONF_ERROR;
|
|
259 }
|
|
260
|
|
261 *cscfp = cscf;
|
|
262
|
|
263
|
|
264 /* parse inside server{} */
|
|
265
|
|
266 pcf = *cf;
|
|
267 cf->ctx = ctx;
|
|
268 cf->cmd_type = NGX_MAIL_SRV_CONF;
|
|
269
|
|
270 rv = ngx_conf_parse(cf, NULL);
|
|
271
|
|
272 *cf = pcf;
|
|
273
|
|
274 return rv;
|
|
275 }
|
|
276
|
|
277
|
|
278 static char *
|
|
279 ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
280 {
|
336
|
281 ngx_mail_core_srv_conf_t *cscf = conf;
|
|
282
|
492
|
283 size_t len, off;
|
|
284 in_port_t port;
|
290
|
285 ngx_str_t *value;
|
|
286 ngx_url_t u;
|
336
|
287 ngx_uint_t i, m;
|
492
|
288 struct sockaddr *sa;
|
486
|
289 ngx_mail_listen_t *ls;
|
336
|
290 ngx_mail_module_t *module;
|
492
|
291 struct sockaddr_in *sin;
|
290
|
292 ngx_mail_core_main_conf_t *cmcf;
|
492
|
293 #if (NGX_HAVE_INET6)
|
|
294 struct sockaddr_in6 *sin6;
|
|
295 #endif
|
290
|
296
|
|
297 value = cf->args->elts;
|
|
298
|
|
299 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
300
|
|
301 u.url = value[1];
|
|
302 u.listen = 1;
|
|
303
|
340
|
304 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
290
|
305 if (u.err) {
|
|
306 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
307 "%s in \"%V\" of the \"listen\" directive",
|
|
308 u.err, &u.url);
|
|
309 }
|
|
310
|
|
311 return NGX_CONF_ERROR;
|
|
312 }
|
|
313
|
|
314 cmcf = ngx_mail_conf_get_module_main_conf(cf, ngx_mail_core_module);
|
|
315
|
486
|
316 ls = cmcf->listen.elts;
|
290
|
317
|
|
318 for (i = 0; i < cmcf->listen.nelts; i++) {
|
|
319
|
492
|
320 sa = (struct sockaddr *) ls[i].sockaddr;
|
|
321
|
|
322 if (sa->sa_family != u.family) {
|
|
323 continue;
|
|
324 }
|
|
325
|
|
326 switch (sa->sa_family) {
|
|
327
|
|
328 #if (NGX_HAVE_INET6)
|
|
329 case AF_INET6:
|
|
330 off = offsetof(struct sockaddr_in6, sin6_addr);
|
|
331 len = 16;
|
|
332 sin6 = (struct sockaddr_in6 *) sa;
|
|
333 port = sin6->sin6_port;
|
|
334 break;
|
|
335 #endif
|
|
336
|
|
337 default: /* AF_INET */
|
|
338 off = offsetof(struct sockaddr_in, sin_addr);
|
|
339 len = 4;
|
|
340 sin = (struct sockaddr_in *) sa;
|
|
341 port = sin->sin_port;
|
|
342 break;
|
|
343 }
|
|
344
|
|
345 if (ngx_memcmp(ls[i].sockaddr + off, u.sockaddr + off, len) != 0) {
|
|
346 continue;
|
|
347 }
|
|
348
|
|
349 if (port != u.port) {
|
290
|
350 continue;
|
|
351 }
|
|
352
|
|
353 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
354 "duplicate \"%V\" address and port pair", &u.url);
|
|
355 return NGX_CONF_ERROR;
|
|
356 }
|
|
357
|
486
|
358 ls = ngx_array_push(&cmcf->listen);
|
|
359 if (ls == NULL) {
|
290
|
360 return NGX_CONF_ERROR;
|
|
361 }
|
|
362
|
486
|
363 ngx_memzero(ls, sizeof(ngx_mail_listen_t));
|
290
|
364
|
492
|
365 ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen);
|
|
366
|
|
367 ls->socklen = u.socklen;
|
|
368 ls->wildcard = u.wildcard;
|
486
|
369 ls->ctx = cf->ctx;
|
290
|
370
|
336
|
371 for (m = 0; ngx_modules[m]; m++) {
|
|
372 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
|
|
373 continue;
|
|
374 }
|
|
375
|
|
376 module = ngx_modules[m]->ctx;
|
|
377
|
|
378 if (module->protocol == NULL) {
|
|
379 continue;
|
|
380 }
|
|
381
|
|
382 for (i = 0; module->protocol->port[i]; i++) {
|
|
383 if (module->protocol->port[i] == u.port) {
|
|
384 cscf->protocol = module->protocol;
|
|
385 break;
|
|
386 }
|
|
387 }
|
|
388 }
|
|
389
|
404
|
390 for (i = 2; i < cf->args->nelts; i++) {
|
|
391
|
|
392 if (ngx_strcmp(value[i].data, "bind") == 0) {
|
486
|
393 ls->bind = 1;
|
404
|
394 continue;
|
|
395 }
|
|
396
|
492
|
397 if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) {
|
|
398 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
|
|
399 struct sockaddr *sa;
|
|
400 u_char buf[NGX_SOCKADDR_STRLEN];
|
|
401
|
|
402 sa = (struct sockaddr *) ls->sockaddr;
|
|
403
|
|
404 if (sa->sa_family == AF_INET6) {
|
|
405
|
|
406 if (ngx_strcmp(&value[i].data[10], "n") == 0) {
|
|
407 ls->ipv6only = 1;
|
|
408
|
|
409 } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) {
|
|
410 ls->ipv6only = 2;
|
|
411
|
|
412 } else {
|
|
413 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
414 "invalid ipv6only flags \"%s\"",
|
|
415 &value[i].data[9]);
|
|
416 return NGX_CONF_ERROR;
|
|
417 }
|
|
418
|
|
419 ls->bind = 1;
|
|
420
|
|
421 } else {
|
|
422 len = ngx_sock_ntop(sa, buf, NGX_SOCKADDR_STRLEN, 1);
|
|
423
|
|
424 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
425 "ipv6only is not supported "
|
|
426 "on addr \"%*s\", ignored", len, buf);
|
|
427 }
|
|
428
|
|
429 continue;
|
|
430 #else
|
|
431 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
432 "bind ipv6only is not supported "
|
|
433 "on this platform");
|
|
434 return NGX_CONF_ERROR;
|
|
435 #endif
|
|
436 }
|
|
437
|
404
|
438 if (ngx_strcmp(value[i].data, "ssl") == 0) {
|
|
439 #if (NGX_MAIL_SSL)
|
486
|
440 ls->ssl = 1;
|
404
|
441 continue;
|
|
442 #else
|
|
443 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
444 "the \"ssl\" parameter requires "
|
|
445 "ngx_mail_ssl_module");
|
|
446 return NGX_CONF_ERROR;
|
|
447 #endif
|
|
448 }
|
|
449
|
|
450 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
451 "the invalid \"%V\" parameter", &value[i]);
|
|
452 return NGX_CONF_ERROR;
|
290
|
453 }
|
|
454
|
404
|
455 return NGX_CONF_OK;
|
290
|
456 }
|
|
457
|
|
458
|
|
459 static char *
|
336
|
460 ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
461 {
|
|
462 ngx_mail_core_srv_conf_t *cscf = conf;
|
|
463
|
|
464 ngx_str_t *value;
|
|
465 ngx_uint_t m;
|
|
466 ngx_mail_module_t *module;
|
|
467
|
|
468 value = cf->args->elts;
|
|
469
|
|
470 for (m = 0; ngx_modules[m]; m++) {
|
|
471 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
|
|
472 continue;
|
|
473 }
|
|
474
|
|
475 module = ngx_modules[m]->ctx;
|
|
476
|
|
477 if (module->protocol
|
|
478 && ngx_strcmp(module->protocol->name.data, value[1].data) == 0)
|
|
479 {
|
|
480 cscf->protocol = module->protocol;
|
|
481
|
|
482 return NGX_CONF_OK;
|
|
483 }
|
|
484 }
|
|
485
|
|
486 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
487 "unknown protocol \"%V\"", &value[1]);
|
|
488 return NGX_CONF_ERROR;
|
|
489 }
|
|
490
|
|
491
|
366
|
492 static char *
|
|
493 ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
494 {
|
|
495 ngx_mail_core_srv_conf_t *cscf = conf;
|
|
496
|
|
497 ngx_url_t u;
|
|
498 ngx_str_t *value;
|
|
499
|
|
500 value = cf->args->elts;
|
|
501
|
|
502 if (cscf->resolver != NGX_CONF_UNSET_PTR) {
|
|
503 return "is duplicate";
|
|
504 }
|
|
505
|
|
506 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
507 cscf->resolver = NULL;
|
|
508 return NGX_CONF_OK;
|
|
509 }
|
|
510
|
|
511 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
512
|
|
513 u.host = value[1];
|
|
514 u.port = 53;
|
|
515
|
|
516 if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) {
|
|
517 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V: %s", &u.host, u.err);
|
|
518 return NGX_CONF_ERROR;
|
|
519 }
|
|
520
|
|
521 cscf->resolver = ngx_resolver_create(cf, &u.addrs[0]);
|
|
522 if (cscf->resolver == NULL) {
|
|
523 return NGX_CONF_OK;
|
|
524 }
|
|
525
|
|
526 return NGX_CONF_OK;
|
|
527 }
|
|
528
|
|
529
|
336
|
530 char *
|
|
531 ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
290
|
532 {
|
|
533 char *p = conf;
|
|
534
|
|
535 ngx_str_t *c, *value;
|
|
536 ngx_uint_t i;
|
|
537 ngx_array_t *a;
|
|
538
|
|
539 a = (ngx_array_t *) (p + cmd->offset);
|
|
540
|
|
541 value = cf->args->elts;
|
|
542
|
|
543 for (i = 1; i < cf->args->nelts; i++) {
|
|
544 c = ngx_array_push(a);
|
|
545 if (c == NULL) {
|
|
546 return NGX_CONF_ERROR;
|
|
547 }
|
|
548
|
|
549 *c = value[i];
|
|
550 }
|
|
551
|
|
552 return NGX_CONF_OK;
|
|
553 }
|