Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_posix_init.c @ 7354:1812f1d79d84
Fixed socket leak with "return 444" in error_page (ticket #274).
Socket leak was observed in the following configuration:
error_page 400 = /close;
location = /close {
return 444;
}
The problem is that "return 444" triggers termination of the request,
and due to error_page termination thinks that it needs to use a posted
request to clear stack. But at the early request processing where 400
errors are generated there are no ngx_http_run_posted_requests() calls,
so the request is only terminated after an external event.
Variants of the problem include "error_page 497" instead (ticket #695)
and various other errors generated during early request processing
(405, 414, 421, 494, 495, 496, 501, 505).
The same problem can be also triggered with "return 499" and "return 408"
as both codes trigger ngx_http_terminate_request(), much like "return 444".
To fix this, the patch adds ngx_http_run_posted_requests() calls to
ngx_http_process_request_line() and ngx_http_process_request_headers()
functions, and to ngx_http_v2_run_request() and ngx_http_v2_push_stream()
functions in HTTP/2.
Since the ngx_http_process_request() function is now only called via
other functions which call ngx_http_run_posted_requests(), the call
there is no longer needed and was removed.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 21 Sep 2018 15:59:30 +0300 |
parents | 057adb2a9d23 |
children |
rev | line source |
---|---|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
373
diff
changeset
|
1 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
373
diff
changeset
|
2 /* |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
373
diff
changeset
|
5 */ |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
373
diff
changeset
|
6 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #include <ngx_config.h> |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #include <ngx_core.h> |
539 | 10 #include <nginx.h> |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 |
473 | 13 ngx_int_t ngx_ncpu; |
14 ngx_int_t ngx_max_sockets; | |
15 ngx_uint_t ngx_inherited_nonblocking; | |
16 ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush; | |
449
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
17 |
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
18 |
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
19 struct rlimit rlmt; |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
20 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
21 |
355
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
22 ngx_os_io_t ngx_os_io = { |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
23 ngx_unix_recv, |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
24 ngx_readv_chain, |
1689 | 25 ngx_udp_unix_recv, |
2434
f80631ca01c6
set send() slot for POSIX systems
Igor Sysoev <igor@sysoev.ru>
parents:
1689
diff
changeset
|
26 ngx_unix_send, |
6436 | 27 ngx_udp_unix_send, |
6692 | 28 ngx_udp_unix_sendmsg_chain, |
355
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
29 ngx_writev_chain, |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
30 0 |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
31 }; |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
32 |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
354
diff
changeset
|
33 |
539 | 34 ngx_int_t |
35 ngx_os_init(ngx_log_t *log) | |
455 | 36 { |
6651
7d4e33092e2a
Always seed PRNG with PID, seconds, and milliseconds.
Ruslan Ermilov <ru@nginx.com>
parents:
6436
diff
changeset
|
37 ngx_time_t *tp; |
7d4e33092e2a
Always seed PRNG with PID, seconds, and milliseconds.
Ruslan Ermilov <ru@nginx.com>
parents:
6436
diff
changeset
|
38 ngx_uint_t n; |
7173
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
39 #if (NGX_HAVE_LEVEL1_DCACHE_LINESIZE) |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
40 long size; |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
41 #endif |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
800
diff
changeset
|
42 |
539 | 43 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
44 if (ngx_os_specific_init(log) != NGX_OK) { | |
45 return NGX_ERROR; | |
46 } | |
47 #endif | |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
48 |
5826
16013b71feed
Added ngx_init_setproctitle() return code check.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5701
diff
changeset
|
49 if (ngx_init_setproctitle(log) != NGX_OK) { |
16013b71feed
Added ngx_init_setproctitle() return code check.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5701
diff
changeset
|
50 return NGX_ERROR; |
16013b71feed
Added ngx_init_setproctitle() return code check.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5701
diff
changeset
|
51 } |
509 | 52 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
252
diff
changeset
|
53 ngx_pagesize = getpagesize(); |
589 | 54 ngx_cacheline_size = NGX_CPU_CACHE_LINE; |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
252
diff
changeset
|
55 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
800
diff
changeset
|
56 for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
800
diff
changeset
|
57 |
4459
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
58 #if (NGX_HAVE_SC_NPROCESSORS_ONLN) |
373
018569a8f09c
nginx-0.0.7-2004-06-30-19:30:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
59 if (ngx_ncpu == 0) { |
4459
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
60 ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN); |
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
61 } |
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
62 #endif |
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
63 |
ccb2f8e3d08d
Added ngx_ncpu detection for most *nix platforms.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
64 if (ngx_ncpu < 1) { |
373
018569a8f09c
nginx-0.0.7-2004-06-30-19:30:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
65 ngx_ncpu = 1; |
018569a8f09c
nginx-0.0.7-2004-06-30-19:30:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
66 } |
018569a8f09c
nginx-0.0.7-2004-06-30-19:30:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
67 |
7173
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
68 #if (NGX_HAVE_LEVEL1_DCACHE_LINESIZE) |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
69 size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE); |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
70 if (size > 0) { |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
71 ngx_cacheline_size = size; |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
72 } |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
73 #endif |
057adb2a9d23
Use sysconf to determine cacheline size at runtime.
Debayan Ghosh <debayang.qdt@qualcommdatacenter.com>
parents:
6692
diff
changeset
|
74 |
611 | 75 ngx_cpuinfo(); |
76 | |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
77 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
78 ngx_log_error(NGX_LOG_ALERT, log, errno, |
6315
cb31017e961b
Core: fix typo in error message.
Piotr Sikora <piotrsikora@google.com>
parents:
5826
diff
changeset
|
79 "getrlimit(RLIMIT_NOFILE) failed"); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
80 return NGX_ERROR; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
81 } |
577 | 82 |
563 | 83 ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur; |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
84 |
3786 | 85 #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4) |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
86 ngx_inherited_nonblocking = 1; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
87 #else |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
88 ngx_inherited_nonblocking = 0; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
89 #endif |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
90 |
6651
7d4e33092e2a
Always seed PRNG with PID, seconds, and milliseconds.
Ruslan Ermilov <ru@nginx.com>
parents:
6436
diff
changeset
|
91 tp = ngx_timeofday(); |
7d4e33092e2a
Always seed PRNG with PID, seconds, and milliseconds.
Ruslan Ermilov <ru@nginx.com>
parents:
6436
diff
changeset
|
92 srandom(((unsigned) ngx_pid << 16) ^ tp->sec ^ tp->msec); |
800 | 93 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
94 return NGX_OK; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
95 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
96 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
97 |
539 | 98 void |
99 ngx_os_status(ngx_log_t *log) | |
449
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
100 { |
5701
1209b8a7b077
Configure: the --build= option.
Ruslan Ermilov <ru@nginx.com>
parents:
4759
diff
changeset
|
101 ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER_BUILD); |
541 | 102 |
557 | 103 #ifdef NGX_COMPILER |
104 ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER); | |
105 #endif | |
106 | |
539 | 107 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
108 ngx_os_specific_status(log); | |
109 #endif | |
110 | |
531 | 111 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
461 | 112 "getrlimit(RLIMIT_NOFILE): %r:%r", |
449
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
113 rlmt.rlim_cur, rlmt.rlim_max); |
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
114 } |
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
115 |
3b1e8c9df9ad
nginx-0.1.0-2004-10-04-00:02:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
444
diff
changeset
|
116 |
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4459
diff
changeset
|
117 #if 0 |
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4459
diff
changeset
|
118 |
539 | 119 ngx_int_t |
120 ngx_posix_post_conf_init(ngx_log_t *log) | |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 ngx_fd_t pp[2]; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 if (pipe(pp) == -1) { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
125 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed"); |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 return NGX_ERROR; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 if (dup2(pp[1], STDERR_FILENO) == -1) { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed"); |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 return NGX_ERROR; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 if (pp[1] > STDERR_FILENO) { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
135 if (close(pp[1]) == -1) { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed"); |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 return NGX_ERROR; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 return NGX_OK; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 } |
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4459
diff
changeset
|
143 |
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4459
diff
changeset
|
144 #endif |