|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_event.h>
|
|
|
10
|
|
|
11
|
|
|
12 ngx_os_io_t ngx_io;
|
|
|
13
|
|
|
14
|
|
70
|
15 ngx_listening_t *
|
|
495
|
16 ngx_create_listening(ngx_conf_t *cf, void *sockaddr, socklen_t socklen)
|
|
0
|
17 {
|
|
550
|
18 size_t len;
|
|
495
|
19 ngx_listening_t *ls;
|
|
|
20 struct sockaddr *sa;
|
|
|
21 u_char text[NGX_SOCKADDR_STRLEN];
|
|
0
|
22
|
|
50
|
23 ls = ngx_array_push(&cf->cycle->listening);
|
|
|
24 if (ls == NULL) {
|
|
0
|
25 return NULL;
|
|
|
26 }
|
|
|
27
|
|
|
28 ngx_memzero(ls, sizeof(ngx_listening_t));
|
|
|
29
|
|
495
|
30 sa = ngx_palloc(cf->pool, socklen);
|
|
|
31 if (sa == NULL) {
|
|
0
|
32 return NULL;
|
|
|
33 }
|
|
|
34
|
|
495
|
35 ngx_memcpy(sa, sockaddr, socklen);
|
|
0
|
36
|
|
495
|
37 ls->sockaddr = sa;
|
|
|
38 ls->socklen = socklen;
|
|
10
|
39
|
|
550
|
40 len = ngx_sock_ntop(sa, text, NGX_SOCKADDR_STRLEN, 1);
|
|
|
41 ls->addr_text.len = len;
|
|
495
|
42
|
|
|
43 switch (ls->sockaddr->sa_family) {
|
|
|
44 #if (NGX_HAVE_INET6)
|
|
|
45 case AF_INET6:
|
|
|
46 ls->addr_text_max_len = NGX_INET6_ADDRSTRLEN;
|
|
|
47 break;
|
|
|
48 #endif
|
|
550
|
49 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
50 case AF_UNIX:
|
|
|
51 ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
|
|
|
52 len++;
|
|
|
53 break;
|
|
|
54 #endif
|
|
495
|
55 case AF_INET:
|
|
|
56 ls->addr_text_max_len = NGX_INET_ADDRSTRLEN;
|
|
|
57 break;
|
|
|
58 default:
|
|
|
59 ls->addr_text_max_len = NGX_SOCKADDR_STRLEN;
|
|
|
60 break;
|
|
|
61 }
|
|
|
62
|
|
550
|
63 ls->addr_text.data = ngx_pnalloc(cf->pool, len);
|
|
|
64 if (ls->addr_text.data == NULL) {
|
|
|
65 return NULL;
|
|
|
66 }
|
|
|
67
|
|
|
68 ngx_memcpy(ls->addr_text.data, text, len);
|
|
|
69
|
|
|
70 ls->fd = (ngx_socket_t) -1;
|
|
|
71 ls->type = SOCK_STREAM;
|
|
|
72
|
|
495
|
73 ls->backlog = NGX_LISTEN_BACKLOG;
|
|
|
74 ls->rcvbuf = -1;
|
|
|
75 ls->sndbuf = -1;
|
|
0
|
76
|
|
|
77 return ls;
|
|
|
78 }
|
|
|
79
|
|
|
80
|
|
70
|
81 ngx_int_t
|
|
|
82 ngx_set_inherited_sockets(ngx_cycle_t *cycle)
|
|
0
|
83 {
|
|
72
|
84 size_t len;
|
|
|
85 ngx_uint_t i;
|
|
|
86 ngx_listening_t *ls;
|
|
112
|
87 socklen_t olen;
|
|
72
|
88 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
90
|
89 ngx_err_t err;
|
|
72
|
90 struct accept_filter_arg af;
|
|
|
91 #endif
|
|
|
92 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
|
93 int timeout;
|
|
|
94 #endif
|
|
0
|
95
|
|
|
96 ls = cycle->listening.elts;
|
|
|
97 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
98
|
|
|
99 /* AF_INET only */
|
|
|
100
|
|
|
101 ls[i].sockaddr = ngx_palloc(cycle->pool, sizeof(struct sockaddr_in));
|
|
|
102 if (ls[i].sockaddr == NULL) {
|
|
|
103 return NGX_ERROR;
|
|
|
104 }
|
|
|
105
|
|
|
106 ls[i].socklen = sizeof(struct sockaddr_in);
|
|
|
107 if (getsockname(ls[i].fd, ls[i].sockaddr, &ls[i].socklen) == -1) {
|
|
|
108 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno,
|
|
|
109 "getsockname() of the inherited "
|
|
|
110 "socket #%d failed", ls[i].fd);
|
|
|
111 ls[i].ignore = 1;
|
|
|
112 continue;
|
|
|
113 }
|
|
|
114
|
|
457
|
115 switch (ls[i].sockaddr->sa_family) {
|
|
0
|
116
|
|
457
|
117 #if (NGX_HAVE_INET6)
|
|
|
118 case AF_INET6:
|
|
|
119 ls[i].addr_text_max_len = NGX_INET6_ADDRSTRLEN;
|
|
554
|
120 len = NGX_INET6_ADDRSTRLEN + sizeof(":65535") - 1;
|
|
|
121 break;
|
|
|
122 #endif
|
|
|
123
|
|
|
124 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
125 case AF_UNIX:
|
|
|
126 ls[i].addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
|
|
|
127 len = NGX_UNIX_ADDRSTRLEN;
|
|
457
|
128 break;
|
|
|
129 #endif
|
|
|
130
|
|
|
131 case AF_INET:
|
|
|
132 ls[i].addr_text_max_len = NGX_INET_ADDRSTRLEN;
|
|
554
|
133 len = NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1;
|
|
457
|
134 break;
|
|
|
135
|
|
|
136 default:
|
|
0
|
137 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno,
|
|
|
138 "the inherited socket #%d has "
|
|
457
|
139 "an unsupported protocol family", ls[i].fd);
|
|
0
|
140 ls[i].ignore = 1;
|
|
|
141 continue;
|
|
|
142 }
|
|
10
|
143
|
|
457
|
144 ls[i].addr_text.data = ngx_pnalloc(cycle->pool, len);
|
|
0
|
145 if (ls[i].addr_text.data == NULL) {
|
|
|
146 return NGX_ERROR;
|
|
|
147 }
|
|
|
148
|
|
457
|
149 len = ngx_sock_ntop(ls[i].sockaddr, ls[i].addr_text.data, len, 1);
|
|
10
|
150 if (len == 0) {
|
|
0
|
151 return NGX_ERROR;
|
|
|
152 }
|
|
10
|
153
|
|
457
|
154 ls[i].addr_text.len = len;
|
|
72
|
155
|
|
326
|
156 ls[i].backlog = NGX_LISTEN_BACKLOG;
|
|
86
|
157
|
|
112
|
158 olen = sizeof(int);
|
|
|
159
|
|
|
160 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF, (void *) &ls[i].rcvbuf,
|
|
|
161 &olen)
|
|
|
162 == -1)
|
|
|
163 {
|
|
|
164 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
|
165 "getsockopt(SO_RCVBUF) %V failed, ignored",
|
|
|
166 &ls[i].addr_text);
|
|
|
167
|
|
|
168 ls[i].rcvbuf = -1;
|
|
|
169 }
|
|
|
170
|
|
|
171 olen = sizeof(int);
|
|
|
172
|
|
|
173 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF, (void *) &ls[i].sndbuf,
|
|
|
174 &olen)
|
|
|
175 == -1)
|
|
|
176 {
|
|
|
177 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
|
178 "getsockopt(SO_SNDBUF) %V failed, ignored",
|
|
|
179 &ls[i].addr_text);
|
|
|
180
|
|
|
181 ls[i].sndbuf = -1;
|
|
|
182 }
|
|
|
183
|
|
72
|
184 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
|
185
|
|
|
186 ngx_memzero(&af, sizeof(struct accept_filter_arg));
|
|
112
|
187 olen = sizeof(struct accept_filter_arg);
|
|
72
|
188
|
|
112
|
189 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, &af, &olen)
|
|
72
|
190 == -1)
|
|
|
191 {
|
|
90
|
192 err = ngx_errno;
|
|
|
193
|
|
|
194 if (err == NGX_EINVAL) {
|
|
|
195 continue;
|
|
|
196 }
|
|
|
197
|
|
|
198 ngx_log_error(NGX_LOG_NOTICE, cycle->log, err,
|
|
72
|
199 "getsockopt(SO_ACCEPTFILTER) for %V failed, ignored",
|
|
|
200 &ls[i].addr_text);
|
|
|
201 continue;
|
|
|
202 }
|
|
|
203
|
|
112
|
204 if (olen < sizeof(struct accept_filter_arg) || af.af_name[0] == '\0') {
|
|
72
|
205 continue;
|
|
|
206 }
|
|
|
207
|
|
|
208 ls[i].accept_filter = ngx_palloc(cycle->pool, 16);
|
|
|
209 if (ls[i].accept_filter == NULL) {
|
|
|
210 return NGX_ERROR;
|
|
|
211 }
|
|
|
212
|
|
|
213 (void) ngx_cpystrn((u_char *) ls[i].accept_filter,
|
|
|
214 (u_char *) af.af_name, 16);
|
|
|
215 #endif
|
|
|
216
|
|
|
217 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
|
218
|
|
|
219 timeout = 0;
|
|
112
|
220 olen = sizeof(int);
|
|
72
|
221
|
|
112
|
222 if (getsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &timeout, &olen)
|
|
72
|
223 == -1)
|
|
|
224 {
|
|
|
225 ngx_log_error(NGX_LOG_NOTICE, cycle->log, ngx_errno,
|
|
|
226 "getsockopt(TCP_DEFER_ACCEPT) for %V failed, ignored",
|
|
|
227 &ls[i].addr_text);
|
|
|
228 continue;
|
|
|
229 }
|
|
|
230
|
|
114
|
231 if (olen < sizeof(int) || timeout == 0) {
|
|
72
|
232 continue;
|
|
|
233 }
|
|
|
234
|
|
|
235 ls[i].deferred_accept = 1;
|
|
|
236 #endif
|
|
0
|
237 }
|
|
|
238
|
|
|
239 return NGX_OK;
|
|
|
240 }
|
|
|
241
|
|
|
242
|
|
70
|
243 ngx_int_t
|
|
|
244 ngx_open_listening_sockets(ngx_cycle_t *cycle)
|
|
0
|
245 {
|
|
112
|
246 int reuseaddr;
|
|
|
247 ngx_uint_t i, tries, failed;
|
|
0
|
248 ngx_err_t err;
|
|
|
249 ngx_log_t *log;
|
|
|
250 ngx_socket_t s;
|
|
|
251 ngx_listening_t *ls;
|
|
|
252
|
|
|
253 reuseaddr = 1;
|
|
|
254 #if (NGX_SUPPRESS_WARN)
|
|
|
255 failed = 0;
|
|
|
256 #endif
|
|
|
257
|
|
|
258 log = cycle->log;
|
|
|
259
|
|
112
|
260 /* TODO: configurable try number */
|
|
0
|
261
|
|
378
|
262 for (tries = 5; tries; tries--) {
|
|
0
|
263 failed = 0;
|
|
|
264
|
|
|
265 /* for each listening socket */
|
|
|
266
|
|
|
267 ls = cycle->listening.elts;
|
|
|
268 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
269
|
|
|
270 if (ls[i].ignore) {
|
|
|
271 continue;
|
|
|
272 }
|
|
|
273
|
|
|
274 if (ls[i].fd != -1) {
|
|
|
275 continue;
|
|
|
276 }
|
|
|
277
|
|
|
278 if (ls[i].inherited) {
|
|
|
279
|
|
|
280 /* TODO: close on exit */
|
|
|
281 /* TODO: nonblocking */
|
|
|
282 /* TODO: deferred accept */
|
|
|
283
|
|
|
284 continue;
|
|
|
285 }
|
|
|
286
|
|
406
|
287 s = ngx_socket(ls[i].sockaddr->sa_family, ls[i].type, 0);
|
|
0
|
288
|
|
|
289 if (s == -1) {
|
|
|
290 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
291 ngx_socket_n " %V failed", &ls[i].addr_text);
|
|
0
|
292 return NGX_ERROR;
|
|
|
293 }
|
|
|
294
|
|
|
295 if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
|
|
112
|
296 (const void *) &reuseaddr, sizeof(int))
|
|
|
297 == -1)
|
|
|
298 {
|
|
0
|
299 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
300 "setsockopt(SO_REUSEADDR) %V failed",
|
|
|
301 &ls[i].addr_text);
|
|
112
|
302
|
|
306
|
303 if (ngx_close_socket(s) == -1) {
|
|
112
|
304 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
|
305 ngx_close_socket_n " %V failed",
|
|
|
306 &ls[i].addr_text);
|
|
306
|
307 }
|
|
112
|
308
|
|
0
|
309 return NGX_ERROR;
|
|
|
310 }
|
|
|
311
|
|
469
|
312 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
|
|
|
313
|
|
|
314 if (ls[i].sockaddr->sa_family == AF_INET6 && ls[i].ipv6only) {
|
|
|
315 int ipv6only;
|
|
|
316
|
|
|
317 ipv6only = (ls[i].ipv6only == 1);
|
|
|
318
|
|
|
319 if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
|
|
|
320 (const void *) &ipv6only, sizeof(int))
|
|
|
321 == -1)
|
|
|
322 {
|
|
495
|
323 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
469
|
324 "setsockopt(IPV6_V6ONLY) %V failed, ignored",
|
|
|
325 &ls[i].addr_text);
|
|
|
326 }
|
|
|
327 }
|
|
|
328 #endif
|
|
0
|
329 /* TODO: close on exit */
|
|
|
330
|
|
|
331 if (!(ngx_event_flags & NGX_USE_AIO_EVENT)) {
|
|
|
332 if (ngx_nonblocking(s) == -1) {
|
|
|
333 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
334 ngx_nonblocking_n " %V failed",
|
|
|
335 &ls[i].addr_text);
|
|
112
|
336
|
|
306
|
337 if (ngx_close_socket(s) == -1) {
|
|
112
|
338 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
|
339 ngx_close_socket_n " %V failed",
|
|
|
340 &ls[i].addr_text);
|
|
306
|
341 }
|
|
112
|
342
|
|
0
|
343 return NGX_ERROR;
|
|
|
344 }
|
|
|
345 }
|
|
|
346
|
|
495
|
347 ngx_log_debug2(NGX_LOG_DEBUG_CORE, log, 0,
|
|
142
|
348 "bind() %V #%d ", &ls[i].addr_text, s);
|
|
|
349
|
|
0
|
350 if (bind(s, ls[i].sockaddr, ls[i].socklen) == -1) {
|
|
|
351 err = ngx_socket_errno;
|
|
112
|
352
|
|
|
353 if (err == NGX_EADDRINUSE && ngx_test_config) {
|
|
|
354 continue;
|
|
|
355 }
|
|
|
356
|
|
0
|
357 ngx_log_error(NGX_LOG_EMERG, log, err,
|
|
10
|
358 "bind() to %V failed", &ls[i].addr_text);
|
|
0
|
359
|
|
306
|
360 if (ngx_close_socket(s) == -1) {
|
|
0
|
361 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
362 ngx_close_socket_n " %V failed",
|
|
|
363 &ls[i].addr_text);
|
|
306
|
364 }
|
|
0
|
365
|
|
112
|
366 if (err != NGX_EADDRINUSE) {
|
|
|
367 return NGX_ERROR;
|
|
|
368 }
|
|
|
369
|
|
0
|
370 failed = 1;
|
|
112
|
371
|
|
0
|
372 continue;
|
|
|
373 }
|
|
|
374
|
|
552
|
375 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
376
|
|
|
377 if (ngx_test_config && ls[i].sockaddr->sa_family == AF_UNIX) {
|
|
|
378 u_char *name = ls[i].addr_text.data + sizeof("unix:") - 1;
|
|
|
379
|
|
|
380 if (ngx_delete_file(name) == -1) {
|
|
|
381 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
|
382 ngx_delete_file_n " %s failed", name);
|
|
|
383 }
|
|
|
384 }
|
|
|
385 #endif
|
|
|
386
|
|
306
|
387 if (listen(s, ls[i].backlog) == -1) {
|
|
|
388 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
|
389 "listen() to %V, backlog %d failed",
|
|
|
390 &ls[i].addr_text, ls[i].backlog);
|
|
|
391
|
|
|
392 if (ngx_close_socket(s) == -1) {
|
|
|
393 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
|
394 ngx_close_socket_n " %V failed",
|
|
|
395 &ls[i].addr_text);
|
|
|
396 }
|
|
|
397
|
|
|
398 return NGX_ERROR;
|
|
|
399 }
|
|
|
400
|
|
112
|
401 ls[i].listen = 1;
|
|
0
|
402
|
|
|
403 ls[i].fd = s;
|
|
|
404 }
|
|
|
405
|
|
112
|
406 if (!failed) {
|
|
0
|
407 break;
|
|
112
|
408 }
|
|
0
|
409
|
|
|
410 /* TODO: delay configurable */
|
|
|
411
|
|
|
412 ngx_log_error(NGX_LOG_NOTICE, log, 0,
|
|
|
413 "try again to bind() after 500ms");
|
|
112
|
414
|
|
0
|
415 ngx_msleep(500);
|
|
|
416 }
|
|
|
417
|
|
|
418 if (failed) {
|
|
26
|
419 ngx_log_error(NGX_LOG_EMERG, log, 0, "still could not bind()");
|
|
0
|
420 return NGX_ERROR;
|
|
|
421 }
|
|
|
422
|
|
|
423 return NGX_OK;
|
|
|
424 }
|
|
|
425
|
|
|
426
|
|
70
|
427 void
|
|
495
|
428 ngx_configure_listening_sockets(ngx_cycle_t *cycle)
|
|
112
|
429 {
|
|
|
430 ngx_uint_t i;
|
|
|
431 ngx_listening_t *ls;
|
|
|
432
|
|
|
433 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
|
434 struct accept_filter_arg af;
|
|
|
435 #endif
|
|
|
436 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
|
437 int timeout;
|
|
|
438 #endif
|
|
|
439
|
|
|
440 ls = cycle->listening.elts;
|
|
|
441 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
442
|
|
495
|
443 ls[i].log = *ls[i].logp;
|
|
|
444
|
|
112
|
445 if (ls[i].rcvbuf != -1) {
|
|
|
446 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF,
|
|
|
447 (const void *) &ls[i].rcvbuf, sizeof(int))
|
|
|
448 == -1)
|
|
|
449 {
|
|
|
450 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
118
|
451 "setsockopt(SO_RCVBUF, %d) %V failed, ignored",
|
|
|
452 ls[i].rcvbuf, &ls[i].addr_text);
|
|
112
|
453 }
|
|
|
454 }
|
|
|
455
|
|
|
456 if (ls[i].sndbuf != -1) {
|
|
|
457 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF,
|
|
|
458 (const void *) &ls[i].sndbuf, sizeof(int))
|
|
|
459 == -1)
|
|
|
460 {
|
|
|
461 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
118
|
462 "setsockopt(SO_SNDBUF, %d) %V failed, ignored",
|
|
|
463 ls[i].sndbuf, &ls[i].addr_text);
|
|
112
|
464 }
|
|
|
465 }
|
|
|
466
|
|
184
|
467 #if 0
|
|
|
468 if (1) {
|
|
|
469 int tcp_nodelay = 1;
|
|
|
470
|
|
|
471 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
472 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
473 == -1)
|
|
|
474 {
|
|
|
475 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
|
476 "setsockopt(TCP_NODELAY) %V failed, ignored",
|
|
|
477 &ls[i].addr_text);
|
|
|
478 }
|
|
|
479 }
|
|
|
480 #endif
|
|
|
481
|
|
112
|
482 if (ls[i].listen) {
|
|
306
|
483
|
|
|
484 /* change backlog via listen() */
|
|
|
485
|
|
112
|
486 if (listen(ls[i].fd, ls[i].backlog) == -1) {
|
|
|
487 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
306
|
488 "listen() to %V, backlog %d failed, ignored",
|
|
112
|
489 &ls[i].addr_text, ls[i].backlog);
|
|
|
490 }
|
|
|
491 }
|
|
|
492
|
|
|
493 /*
|
|
|
494 * setting deferred mode should be last operation on socket,
|
|
|
495 * because code may prematurely continue cycle on failure
|
|
|
496 */
|
|
|
497
|
|
|
498 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
|
499
|
|
|
500 #ifdef SO_ACCEPTFILTER
|
|
|
501
|
|
176
|
502 if (ls[i].delete_deferred) {
|
|
|
503 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0)
|
|
|
504 == -1)
|
|
112
|
505 {
|
|
|
506 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
507 "setsockopt(SO_ACCEPTFILTER, NULL) "
|
|
|
508 "for %V failed, ignored",
|
|
176
|
509 &ls[i].addr_text);
|
|
112
|
510
|
|
176
|
511 if (ls[i].accept_filter) {
|
|
112
|
512 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
513 "could not change the accept filter "
|
|
|
514 "to \"%s\" for %V, ignored",
|
|
176
|
515 ls[i].accept_filter, &ls[i].addr_text);
|
|
112
|
516 }
|
|
|
517
|
|
|
518 continue;
|
|
|
519 }
|
|
|
520
|
|
176
|
521 ls[i].deferred_accept = 0;
|
|
112
|
522 }
|
|
|
523
|
|
176
|
524 if (ls[i].add_deferred) {
|
|
112
|
525 ngx_memzero(&af, sizeof(struct accept_filter_arg));
|
|
|
526 (void) ngx_cpystrn((u_char *) af.af_name,
|
|
176
|
527 (u_char *) ls[i].accept_filter, 16);
|
|
112
|
528
|
|
176
|
529 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
|
112
|
530 &af, sizeof(struct accept_filter_arg))
|
|
|
531 == -1)
|
|
|
532 {
|
|
|
533 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
534 "setsockopt(SO_ACCEPTFILTER, \"%s\") "
|
|
|
535 " for %V failed, ignored",
|
|
176
|
536 ls[i].accept_filter, &ls[i].addr_text);
|
|
112
|
537 continue;
|
|
|
538 }
|
|
|
539
|
|
176
|
540 ls[i].deferred_accept = 1;
|
|
112
|
541 }
|
|
|
542
|
|
|
543 #endif
|
|
|
544
|
|
|
545 #ifdef TCP_DEFER_ACCEPT
|
|
|
546
|
|
176
|
547 if (ls[i].add_deferred || ls[i].delete_deferred) {
|
|
112
|
548
|
|
176
|
549 if (ls[i].add_deferred) {
|
|
|
550 timeout = (int) (ls[i].post_accept_timeout / 1000);
|
|
112
|
551
|
|
|
552 } else {
|
|
|
553 timeout = 0;
|
|
|
554 }
|
|
|
555
|
|
176
|
556 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT,
|
|
112
|
557 &timeout, sizeof(int))
|
|
|
558 == -1)
|
|
|
559 {
|
|
|
560 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
561 "setsockopt(TCP_DEFER_ACCEPT, %d) for %V failed, "
|
|
|
562 "ignored",
|
|
176
|
563 timeout, &ls[i].addr_text);
|
|
112
|
564
|
|
|
565 continue;
|
|
|
566 }
|
|
|
567 }
|
|
|
568
|
|
176
|
569 if (ls[i].add_deferred) {
|
|
|
570 ls[i].deferred_accept = 1;
|
|
112
|
571 }
|
|
|
572
|
|
|
573 #endif
|
|
|
574
|
|
|
575 #endif /* NGX_HAVE_DEFERRED_ACCEPT */
|
|
|
576 }
|
|
|
577
|
|
|
578 return;
|
|
|
579 }
|
|
|
580
|
|
|
581
|
|
|
582 void
|
|
70
|
583 ngx_close_listening_sockets(ngx_cycle_t *cycle)
|
|
0
|
584 {
|
|
92
|
585 ngx_uint_t i;
|
|
|
586 ngx_listening_t *ls;
|
|
|
587 ngx_connection_t *c;
|
|
0
|
588
|
|
|
589 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
|
590 return;
|
|
|
591 }
|
|
|
592
|
|
|
593 ngx_accept_mutex_held = 0;
|
|
160
|
594 ngx_use_accept_mutex = 0;
|
|
0
|
595
|
|
|
596 ls = cycle->listening.elts;
|
|
|
597 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
598
|
|
92
|
599 c = ls[i].connection;
|
|
0
|
600
|
|
489
|
601 if (c) {
|
|
|
602 if (c->read->active) {
|
|
|
603 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
604 ngx_del_conn(c, NGX_CLOSE_EVENT);
|
|
362
|
605
|
|
489
|
606 } else if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
0
|
607
|
|
489
|
608 /*
|
|
|
609 * it seems that Linux-2.6.x OpenVZ sends events
|
|
|
610 * for closed shared listening sockets unless
|
|
|
611 * the events was explicity deleted
|
|
|
612 */
|
|
362
|
613
|
|
489
|
614 ngx_del_event(c->read, NGX_READ_EVENT, 0);
|
|
362
|
615
|
|
489
|
616 } else {
|
|
|
617 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT);
|
|
|
618 }
|
|
0
|
619 }
|
|
489
|
620
|
|
|
621 ngx_free_connection(c);
|
|
|
622
|
|
|
623 c->fd = (ngx_socket_t) -1;
|
|
0
|
624 }
|
|
|
625
|
|
112
|
626 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
627 "close listening %V #%d ", &ls[i].addr_text, ls[i].fd);
|
|
|
628
|
|
92
|
629 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
0
|
630 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
10
|
631 ngx_close_socket_n " %V failed", &ls[i].addr_text);
|
|
0
|
632 }
|
|
507
|
633
|
|
550
|
634 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
635
|
|
|
636 if (ls[i].sockaddr->sa_family == AF_UNIX
|
|
552
|
637 && ngx_process != NGX_PROCESS_WORKER
|
|
|
638 && ngx_new_binary == 0)
|
|
550
|
639 {
|
|
|
640 u_char *name = ls[i].addr_text.data + sizeof("unix:") - 1;
|
|
|
641
|
|
|
642 if (ngx_delete_file(name) == -1) {
|
|
|
643 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
|
644 ngx_delete_file_n " %s failed", name);
|
|
|
645 }
|
|
|
646 }
|
|
|
647
|
|
|
648 #endif
|
|
|
649
|
|
507
|
650 ls[i].fd = (ngx_socket_t) -1;
|
|
92
|
651 }
|
|
|
652 }
|
|
0
|
653
|
|
92
|
654
|
|
|
655 ngx_connection_t *
|
|
|
656 ngx_get_connection(ngx_socket_t s, ngx_log_t *log)
|
|
|
657 {
|
|
110
|
658 ngx_uint_t instance;
|
|
|
659 ngx_event_t *rev, *wev;
|
|
|
660 ngx_connection_t *c;
|
|
92
|
661
|
|
|
662 /* disable warning: Win32 SOCKET is u_int while UNIX socket is int */
|
|
|
663
|
|
|
664 if (ngx_cycle->files && (ngx_uint_t) s >= ngx_cycle->files_n) {
|
|
|
665 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
666 "the new socket has number %d, "
|
|
|
667 "but only %ui files are available",
|
|
|
668 s, ngx_cycle->files_n);
|
|
|
669 return NULL;
|
|
|
670 }
|
|
|
671
|
|
|
672 /* ngx_mutex_lock */
|
|
|
673
|
|
|
674 c = ngx_cycle->free_connections;
|
|
|
675
|
|
|
676 if (c == NULL) {
|
|
|
677 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
420
|
678 "%ui worker_connections are not enough",
|
|
92
|
679 ngx_cycle->connection_n);
|
|
|
680
|
|
|
681 /* ngx_mutex_unlock */
|
|
|
682
|
|
|
683 return NULL;
|
|
|
684 }
|
|
|
685
|
|
|
686 ngx_cycle->free_connections = c->data;
|
|
|
687 ngx_cycle->free_connection_n--;
|
|
|
688
|
|
|
689 /* ngx_mutex_unlock */
|
|
|
690
|
|
|
691 if (ngx_cycle->files) {
|
|
|
692 ngx_cycle->files[s] = c;
|
|
|
693 }
|
|
|
694
|
|
110
|
695 rev = c->read;
|
|
|
696 wev = c->write;
|
|
|
697
|
|
|
698 ngx_memzero(c, sizeof(ngx_connection_t));
|
|
|
699
|
|
|
700 c->read = rev;
|
|
|
701 c->write = wev;
|
|
|
702 c->fd = s;
|
|
|
703 c->log = log;
|
|
|
704
|
|
|
705 instance = rev->instance;
|
|
|
706
|
|
|
707 ngx_memzero(rev, sizeof(ngx_event_t));
|
|
|
708 ngx_memzero(wev, sizeof(ngx_event_t));
|
|
|
709
|
|
|
710 rev->instance = !instance;
|
|
|
711 wev->instance = !instance;
|
|
|
712
|
|
|
713 rev->index = NGX_INVALID_INDEX;
|
|
|
714 wev->index = NGX_INVALID_INDEX;
|
|
|
715
|
|
|
716 rev->data = c;
|
|
|
717 wev->data = c;
|
|
|
718
|
|
|
719 wev->write = 1;
|
|
|
720
|
|
92
|
721 return c;
|
|
|
722 }
|
|
|
723
|
|
|
724
|
|
|
725 void
|
|
|
726 ngx_free_connection(ngx_connection_t *c)
|
|
|
727 {
|
|
|
728 /* ngx_mutex_lock */
|
|
|
729
|
|
|
730 c->data = ngx_cycle->free_connections;
|
|
|
731 ngx_cycle->free_connections = c;
|
|
|
732 ngx_cycle->free_connection_n++;
|
|
|
733
|
|
|
734 /* ngx_mutex_unlock */
|
|
|
735
|
|
|
736 if (ngx_cycle->files) {
|
|
|
737 ngx_cycle->files[c->fd] = NULL;
|
|
0
|
738 }
|
|
|
739 }
|
|
|
740
|
|
|
741
|
|
70
|
742 void
|
|
|
743 ngx_close_connection(ngx_connection_t *c)
|
|
0
|
744 {
|
|
366
|
745 ngx_err_t err;
|
|
|
746 ngx_uint_t log_error, level;
|
|
0
|
747 ngx_socket_t fd;
|
|
|
748
|
|
28
|
749 if (c->fd == -1) {
|
|
0
|
750 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed");
|
|
|
751 return;
|
|
|
752 }
|
|
|
753
|
|
|
754 if (c->read->timer_set) {
|
|
|
755 ngx_del_timer(c->read);
|
|
|
756 }
|
|
126
|
757
|
|
0
|
758 if (c->write->timer_set) {
|
|
|
759 ngx_del_timer(c->write);
|
|
|
760 }
|
|
126
|
761
|
|
0
|
762 if (ngx_del_conn) {
|
|
|
763 ngx_del_conn(c, NGX_CLOSE_EVENT);
|
|
|
764
|
|
|
765 } else {
|
|
|
766 if (c->read->active || c->read->disabled) {
|
|
|
767 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT);
|
|
|
768 }
|
|
|
769
|
|
|
770 if (c->write->active || c->write->disabled) {
|
|
|
771 ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT);
|
|
|
772 }
|
|
|
773 }
|
|
|
774
|
|
|
775 #if (NGX_THREADS)
|
|
|
776
|
|
|
777 /*
|
|
|
778 * we have to clean the connection information before the closing
|
|
|
779 * because another thread may reopen the same file descriptor
|
|
|
780 * before we clean the connection
|
|
|
781 */
|
|
|
782
|
|
112
|
783 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
784
|
|
112
|
785 if (c->read->prev) {
|
|
|
786 ngx_delete_posted_event(c->read);
|
|
|
787 }
|
|
0
|
788
|
|
112
|
789 if (c->write->prev) {
|
|
|
790 ngx_delete_posted_event(c->write);
|
|
|
791 }
|
|
0
|
792
|
|
112
|
793 c->read->closed = 1;
|
|
|
794 c->write->closed = 1;
|
|
0
|
795
|
|
112
|
796 if (c->single_connection) {
|
|
|
797 ngx_unlock(&c->lock);
|
|
|
798 c->read->locked = 0;
|
|
|
799 c->write->locked = 0;
|
|
|
800 }
|
|
0
|
801
|
|
112
|
802 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
803
|
|
|
804 #else
|
|
|
805
|
|
|
806 if (c->read->prev) {
|
|
|
807 ngx_delete_posted_event(c->read);
|
|
|
808 }
|
|
|
809
|
|
|
810 if (c->write->prev) {
|
|
|
811 ngx_delete_posted_event(c->write);
|
|
|
812 }
|
|
|
813
|
|
|
814 c->read->closed = 1;
|
|
|
815 c->write->closed = 1;
|
|
|
816
|
|
|
817 #endif
|
|
|
818
|
|
366
|
819 log_error = c->log_error;
|
|
|
820
|
|
92
|
821 ngx_free_connection(c);
|
|
|
822
|
|
0
|
823 fd = c->fd;
|
|
|
824 c->fd = (ngx_socket_t) -1;
|
|
|
825
|
|
|
826 if (ngx_close_socket(fd) == -1) {
|
|
|
827
|
|
366
|
828 err = ngx_socket_errno;
|
|
|
829
|
|
|
830 if (err == NGX_ECONNRESET || err == NGX_ENOTCONN) {
|
|
|
831
|
|
|
832 switch (log_error) {
|
|
|
833
|
|
|
834 case NGX_ERROR_INFO:
|
|
|
835 level = NGX_LOG_INFO;
|
|
|
836 break;
|
|
|
837
|
|
|
838 case NGX_ERROR_ERR:
|
|
|
839 level = NGX_LOG_ERR;
|
|
|
840 break;
|
|
|
841
|
|
|
842 default:
|
|
|
843 level = NGX_LOG_CRIT;
|
|
|
844 }
|
|
|
845
|
|
|
846 } else {
|
|
|
847 level = NGX_LOG_CRIT;
|
|
|
848 }
|
|
|
849
|
|
0
|
850 /* we use ngx_cycle->log because c->log was in c->pool */
|
|
|
851
|
|
366
|
852 ngx_log_error(level, ngx_cycle->log, err,
|
|
332
|
853 ngx_close_socket_n " %d failed", fd);
|
|
0
|
854 }
|
|
|
855 }
|
|
|
856
|
|
|
857
|
|
70
|
858 ngx_int_t
|
|
501
|
859 ngx_connection_local_sockaddr(ngx_connection_t *c, ngx_str_t *s,
|
|
|
860 ngx_uint_t port)
|
|
|
861 {
|
|
|
862 socklen_t len;
|
|
|
863 ngx_uint_t addr;
|
|
|
864 u_char sa[NGX_SOCKADDRLEN];
|
|
|
865 struct sockaddr_in *sin;
|
|
|
866 #if (NGX_HAVE_INET6)
|
|
|
867 ngx_uint_t i;
|
|
|
868 struct sockaddr_in6 *sin6;
|
|
|
869 #endif
|
|
|
870
|
|
|
871 switch (c->local_sockaddr->sa_family) {
|
|
|
872
|
|
|
873 #if (NGX_HAVE_INET6)
|
|
|
874 case AF_INET6:
|
|
|
875 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
|
|
|
876
|
|
|
877 for (addr = 0, i = 0; addr == 0 && i < 16; i++) {
|
|
|
878 addr |= sin6->sin6_addr.s6_addr[i];
|
|
|
879 }
|
|
|
880
|
|
|
881 break;
|
|
|
882 #endif
|
|
|
883
|
|
|
884 default: /* AF_INET */
|
|
|
885 sin = (struct sockaddr_in *) c->local_sockaddr;
|
|
|
886 addr = sin->sin_addr.s_addr;
|
|
|
887 break;
|
|
|
888 }
|
|
|
889
|
|
|
890 if (addr == 0) {
|
|
|
891
|
|
|
892 len = NGX_SOCKADDRLEN;
|
|
|
893
|
|
|
894 if (getsockname(c->fd, (struct sockaddr *) &sa, &len) == -1) {
|
|
|
895 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed");
|
|
|
896 return NGX_ERROR;
|
|
|
897 }
|
|
|
898
|
|
|
899 c->local_sockaddr = ngx_palloc(c->pool, len);
|
|
|
900 if (c->local_sockaddr == NULL) {
|
|
|
901 return NGX_ERROR;
|
|
|
902 }
|
|
|
903
|
|
|
904 ngx_memcpy(c->local_sockaddr, &sa, len);
|
|
|
905 }
|
|
|
906
|
|
|
907 if (s == NULL) {
|
|
|
908 return NGX_OK;
|
|
|
909 }
|
|
|
910
|
|
|
911 s->len = ngx_sock_ntop(c->local_sockaddr, s->data, s->len, port);
|
|
|
912
|
|
|
913 return NGX_OK;
|
|
|
914 }
|
|
|
915
|
|
|
916
|
|
|
917 ngx_int_t
|
|
70
|
918 ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text)
|
|
0
|
919 {
|
|
|
920 ngx_uint_t level;
|
|
|
921
|
|
493
|
922 /* Winsock may return NGX_ECONNABORTED instead of NGX_ECONNRESET */
|
|
|
923
|
|
|
924 if ((err == NGX_ECONNRESET
|
|
|
925 #if (NGX_WIN32)
|
|
|
926 || err == NGX_ECONNABORTED
|
|
|
927 #endif
|
|
|
928 ) && c->log_error == NGX_ERROR_IGNORE_ECONNRESET)
|
|
|
929 {
|
|
0
|
930 return 0;
|
|
|
931 }
|
|
|
932
|
|
469
|
933 #if (NGX_SOLARIS)
|
|
|
934 if (err == NGX_EINVAL && c->log_error == NGX_ERROR_IGNORE_EINVAL) {
|
|
|
935 return 0;
|
|
|
936 }
|
|
|
937 #endif
|
|
|
938
|
|
86
|
939 if (err == 0
|
|
|
940 || err == NGX_ECONNRESET
|
|
493
|
941 #if (NGX_WIN32)
|
|
|
942 || err == NGX_ECONNABORTED
|
|
|
943 #else
|
|
0
|
944 || err == NGX_EPIPE
|
|
|
945 #endif
|
|
|
946 || err == NGX_ENOTCONN
|
|
136
|
947 || err == NGX_ETIMEDOUT
|
|
0
|
948 || err == NGX_ECONNREFUSED
|
|
364
|
949 || err == NGX_ENETDOWN
|
|
|
950 || err == NGX_ENETUNREACH
|
|
|
951 || err == NGX_EHOSTDOWN
|
|
0
|
952 || err == NGX_EHOSTUNREACH)
|
|
|
953 {
|
|
|
954 switch (c->log_error) {
|
|
|
955
|
|
469
|
956 case NGX_ERROR_IGNORE_EINVAL:
|
|
0
|
957 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
958 case NGX_ERROR_INFO:
|
|
|
959 level = NGX_LOG_INFO;
|
|
|
960 break;
|
|
|
961
|
|
542
|
962 default:
|
|
0
|
963 level = NGX_LOG_ERR;
|
|
|
964 }
|
|
|
965
|
|
|
966 } else {
|
|
366
|
967 level = NGX_LOG_ALERT;
|
|
0
|
968 }
|
|
|
969
|
|
|
970 ngx_log_error(level, c->log, err, text);
|
|
|
971
|
|
|
972 return NGX_ERROR;
|
|
|
973 }
|
