Mercurial > hg > nginx-quic
annotate src/event/ngx_event_accept.c @ 8531:41f4bd4c51f1
Disabled control characters and space in header names.
Control characters (0x00-0x1f, 0x7f), space, and colon were never allowed in
header names. The only somewhat valid use is header continuation which nginx
never supported and which is explicitly obsolete by RFC 7230.
Previously, such headers were considered invalid and were ignored by default
(as per ignore_invalid_headers directive). With this change, such headers
are unconditionally rejected.
It is expected to make nginx more resilient to various attacks, in particular,
with ignore_invalid_headers switched off (which is inherently unsecure, though
nevertheless sometimes used in the wild).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 28 Jun 2021 18:01:18 +0300 |
parents | fdc3d40979b0 |
children | e2d07e4ec636 |
rev | line source |
---|---|
441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
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13 static ngx_int_t ngx_disable_accept_events(ngx_cycle_t *cycle, ngx_uint_t all); |
543 | 14 static void ngx_close_accepted_connection(ngx_connection_t *c); |
191
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15 |
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16 |
493 | 17 void |
18 ngx_event_accept(ngx_event_t *ev) | |
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19 { |
714 | 20 socklen_t socklen; |
483 | 21 ngx_err_t err; |
22 ngx_log_t *log; | |
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23 ngx_uint_t level; |
483 | 24 ngx_socket_t s; |
25 ngx_event_t *rev, *wev; | |
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26 ngx_sockaddr_t sa; |
543 | 27 ngx_listening_t *ls; |
28 ngx_connection_t *c, *lc; | |
483 | 29 ngx_event_conf_t *ecf; |
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30 #if (NGX_HAVE_ACCEPT4) |
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31 static ngx_uint_t use_accept4 = 1; |
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32 #endif |
26
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33 |
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34 if (ev->timedout) { |
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35 if (ngx_enable_accept_events((ngx_cycle_t *) ngx_cycle) != NGX_OK) { |
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36 return; |
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37 } |
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38 |
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39 ev->timedout = 0; |
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40 } |
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41 |
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42 ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module); |
97
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43 |
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44 if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) { |
248
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45 ev->available = ecf->multi_accept; |
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46 } |
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47 |
543 | 48 lc = ev->data; |
49 ls = lc->listening; | |
50 ev->ready = 0; | |
57
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51 |
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52 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
543 | 53 "accept on %V, ready: %d", &ls->addr_text, ev->available); |
57
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54 |
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55 do { |
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56 socklen = sizeof(ngx_sockaddr_t); |
191
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57 |
3786 | 58 #if (NGX_HAVE_ACCEPT4) |
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59 if (use_accept4) { |
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60 s = accept4(lc->fd, &sa.sockaddr, &socklen, SOCK_NONBLOCK); |
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61 } else { |
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62 s = accept(lc->fd, &sa.sockaddr, &socklen); |
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63 } |
3786 | 64 #else |
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65 s = accept(lc->fd, &sa.sockaddr, &socklen); |
3786 | 66 #endif |
477 | 67 |
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68 if (s == (ngx_socket_t) -1) { |
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69 err = ngx_socket_errno; |
57
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70 |
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71 if (err == NGX_EAGAIN) { |
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72 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err, |
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73 "accept() not ready"); |
87
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74 return; |
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75 } |
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76 |
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77 level = NGX_LOG_ALERT; |
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78 |
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79 if (err == NGX_ECONNABORTED) { |
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80 level = NGX_LOG_ERR; |
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81 |
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82 } else if (err == NGX_EMFILE || err == NGX_ENFILE) { |
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83 level = NGX_LOG_CRIT; |
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84 } |
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85 |
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86 #if (NGX_HAVE_ACCEPT4) |
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87 ngx_log_error(level, ev->log, err, |
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88 use_accept4 ? "accept4() failed" : "accept() failed"); |
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89 |
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90 if (use_accept4 && err == NGX_ENOSYS) { |
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91 use_accept4 = 0; |
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92 ngx_inherited_nonblocking = 0; |
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93 continue; |
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94 } |
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95 #else |
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96 ngx_log_error(level, ev->log, err, "accept() failed"); |
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97 #endif |
97
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98 |
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99 if (err == NGX_ECONNABORTED) { |
455 | 100 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
248
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101 ev->available--; |
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102 } |
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103 |
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104 if (ev->available) { |
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105 continue; |
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106 } |
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107 } |
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108 |
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109 if (err == NGX_EMFILE || err == NGX_ENFILE) { |
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110 if (ngx_disable_accept_events((ngx_cycle_t *) ngx_cycle, 1) |
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111 != NGX_OK) |
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112 { |
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113 return; |
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114 } |
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115 |
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116 if (ngx_use_accept_mutex) { |
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117 if (ngx_accept_mutex_held) { |
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118 ngx_shmtx_unlock(&ngx_accept_mutex); |
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119 ngx_accept_mutex_held = 0; |
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120 } |
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121 |
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122 ngx_accept_disabled = 1; |
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
123 |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
124 } else { |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
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parents:
4613
diff
changeset
|
125 ngx_add_timer(ev, ecf->accept_mutex_delay); |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
126 } |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
127 } |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
128 |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
129 return; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
130 } |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
131 |
426
3f88935a02e8
nginx-0.0.10-2004-09-14-23:39:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
425
diff
changeset
|
132 #if (NGX_STAT_STUB) |
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2723
diff
changeset
|
133 (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1); |
426
3f88935a02e8
nginx-0.0.10-2004-09-14-23:39:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
425
diff
changeset
|
134 #endif |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
135 |
2255 | 136 ngx_accept_disabled = ngx_cycle->connection_n / 8 |
543 | 137 - ngx_cycle->free_connection_n; |
138 | |
139 c = ngx_get_connection(s, ev->log); | |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
140 |
543 | 141 if (c == NULL) { |
142 if (ngx_close_socket(s) == -1) { | |
143 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, | |
144 ngx_close_socket_n " failed"); | |
145 } | |
119
cd54bcbaf3b5
nginx-0.0.1-2003-07-21-01:15:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
117
diff
changeset
|
146 |
543 | 147 return; |
148 } | |
149 | |
6436 | 150 c->type = SOCK_STREAM; |
151 | |
635 | 152 #if (NGX_STAT_STUB) |
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2723
diff
changeset
|
153 (void) ngx_atomic_fetch_add(ngx_stat_active, 1); |
635 | 154 #endif |
155 | |
543 | 156 c->pool = ngx_create_pool(ls->pool_size, ev->log); |
157 if (c->pool == NULL) { | |
158 ngx_close_accepted_connection(c); | |
159 return; | |
160 } | |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
161 |
7119
fef61d26da39
Fixed buffer overread with unix sockets after accept().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7005
diff
changeset
|
162 if (socklen > (socklen_t) sizeof(ngx_sockaddr_t)) { |
fef61d26da39
Fixed buffer overread with unix sockets after accept().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7005
diff
changeset
|
163 socklen = sizeof(ngx_sockaddr_t); |
fef61d26da39
Fixed buffer overread with unix sockets after accept().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7005
diff
changeset
|
164 } |
fef61d26da39
Fixed buffer overread with unix sockets after accept().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7005
diff
changeset
|
165 |
714 | 166 c->sockaddr = ngx_palloc(c->pool, socklen); |
543 | 167 if (c->sockaddr == NULL) { |
168 ngx_close_accepted_connection(c); | |
169 return; | |
170 } | |
171 | |
6559
adf25b8d0431
Introduced the ngx_sockaddr_t type.
Ruslan Ermilov <ru@nginx.com>
parents:
6532
diff
changeset
|
172 ngx_memcpy(c->sockaddr, &sa, socklen); |
543 | 173 |
174 log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
175 if (log == NULL) { | |
176 ngx_close_accepted_connection(c); | |
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
177 return; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 } |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
179 |
6125
4dc8e7b62216
Removed the obsolete aio module.
Ruslan Ermilov <ru@nginx.com>
parents:
5820
diff
changeset
|
180 /* set a blocking mode for iocp and non-blocking mode for others */ |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
181 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
182 if (ngx_inherited_nonblocking) { |
6125
4dc8e7b62216
Removed the obsolete aio module.
Ruslan Ermilov <ru@nginx.com>
parents:
5820
diff
changeset
|
183 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
184 if (ngx_blocking(s) == -1) { |
543 | 185 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
186 ngx_blocking_n " failed"); |
543 | 187 ngx_close_accepted_connection(c); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
188 return; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
189 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
190 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
191 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
192 } else { |
6126
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
193 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) { |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
194 if (ngx_nonblocking(s) == -1) { |
543 | 195 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
196 ngx_nonblocking_n " failed"); |
543 | 197 ngx_close_accepted_connection(c); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
198 return; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
92
diff
changeset
|
199 } |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
200 } |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
201 } |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
202 |
543 | 203 *log = ls->log; |
204 | |
205 c->recv = ngx_recv; | |
206 c->send = ngx_send; | |
577 | 207 c->recv_chain = ngx_recv_chain; |
543 | 208 c->send_chain = ngx_send_chain; |
103
6dfda4cf5200
nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
209 |
543 | 210 c->log = log; |
211 c->pool->log = log; | |
103
6dfda4cf5200
nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
212 |
2512
2e91aecb9e57
a prelimiary IPv6 support, HTTP listen
Igor Sysoev <igor@sysoev.ru>
parents:
2255
diff
changeset
|
213 c->socklen = socklen; |
543 | 214 c->listening = ls; |
2512
2e91aecb9e57
a prelimiary IPv6 support, HTTP listen
Igor Sysoev <igor@sysoev.ru>
parents:
2255
diff
changeset
|
215 c->local_sockaddr = ls->sockaddr; |
5463
1ab1cf63f885
Core: keep the length of the local sockaddr.
Ruslan Ermilov <ru@nginx.com>
parents:
5360
diff
changeset
|
216 c->local_socklen = ls->socklen; |
543 | 217 |
3230
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
218 #if (NGX_HAVE_UNIX_DOMAIN) |
a7491af45540
http listen unix domain sockets
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parents:
2951
diff
changeset
|
219 if (c->sockaddr->sa_family == AF_UNIX) { |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
220 c->tcp_nopush = NGX_TCP_NOPUSH_DISABLED; |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
221 c->tcp_nodelay = NGX_TCP_NODELAY_DISABLED; |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
222 #if (NGX_SOLARIS) |
a7491af45540
http listen unix domain sockets
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parents:
2951
diff
changeset
|
223 /* Solaris's sendfilev() supports AF_NCA, AF_INET, and AF_INET6 */ |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
224 c->sendfile = 0; |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
225 #endif |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
226 } |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
227 #endif |
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
2951
diff
changeset
|
228 |
561 | 229 rev = c->read; |
230 wev = c->write; | |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
231 |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
232 wev->ready = 1; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
233 |
6126
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
234 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
235 rev->ready = 1; |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
236 } |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
237 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
238 if (ev->deferred_accept) { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
239 rev->ready = 1; |
7005
3e2d90073adf
Fixed deferred accept with EPOLLRDHUP enabled (ticket #1278).
Roman Arutyunyan <arut@nginx.com>
parents:
6692
diff
changeset
|
240 #if (NGX_HAVE_KQUEUE || NGX_HAVE_EPOLLRDHUP) |
523 | 241 rev->available = 1; |
242 #endif | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
243 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
244 |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
245 rev->log = log; |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
246 wev->log = log; |
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
247 |
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
248 /* |
561 | 249 * TODO: MT: - ngx_atomic_fetch_add() |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
250 * or protection by critical section or light mutex |
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
251 * |
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
252 * TODO: MP: - allocated in a shared memory |
561 | 253 * - ngx_atomic_fetch_add() |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
254 * or protection by critical section or light mutex |
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
255 */ |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
256 |
561 | 257 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
24
diff
changeset
|
258 |
8396
fdc3d40979b0
Introduced the "keepalive_time" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7285
diff
changeset
|
259 c->start_time = ngx_current_msec; |
fdc3d40979b0
Introduced the "keepalive_time" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7285
diff
changeset
|
260 |
495 | 261 #if (NGX_STAT_STUB) |
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2723
diff
changeset
|
262 (void) ngx_atomic_fetch_add(ngx_stat_handled, 1); |
495 | 263 #endif |
264 | |
543 | 265 if (ls->addr_ntop) { |
2049 | 266 c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
267 if (c->addr_text.data == NULL) { |
543 | 268 ngx_close_accepted_connection(c); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
269 return; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
270 } |
577 | 271 |
5263
05ba5bce31e0
Core: extended ngx_sock_ntop() with socklen parameter.
Vladimir Homutov <vl@nginx.com>
parents:
4618
diff
changeset
|
272 c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen, |
05ba5bce31e0
Core: extended ngx_sock_ntop() with socklen parameter.
Vladimir Homutov <vl@nginx.com>
parents:
4618
diff
changeset
|
273 c->addr_text.data, |
2512
2e91aecb9e57
a prelimiary IPv6 support, HTTP listen
Igor Sysoev <igor@sysoev.ru>
parents:
2255
diff
changeset
|
274 ls->addr_text_max_len, 0); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
275 if (c->addr_text.len == 0) { |
543 | 276 ngx_close_accepted_connection(c); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
277 return; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
278 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
279 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
280 |
307
ce375c313e96
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281 #if (NGX_DEBUG) |
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parents:
306
diff
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282 { |
6436 | 283 ngx_str_t addr; |
284 u_char text[NGX_SOCKADDR_STRLEN]; | |
307
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306
diff
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|
285 |
6436 | 286 ngx_debug_accepted_connection(ecf, c); |
307
ce375c313e96
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306
diff
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287 |
5704
524741fd50ed
Core: output client port number when logging accept event.
Ruslan Ermilov <ru@nginx.com>
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diff
changeset
|
288 if (log->log_level & NGX_LOG_DEBUG_EVENT) { |
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Core: output client port number when logging accept event.
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289 addr.data = text; |
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290 addr.len = ngx_sock_ntop(c->sockaddr, c->socklen, text, |
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Core: output client port number when logging accept event.
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|
291 NGX_SOCKADDR_STRLEN, 1); |
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292 |
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|
293 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, log, 0, |
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294 "*%uA accept: %V fd:%d", c->number, &addr, s); |
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Core: output client port number when logging accept event.
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295 } |
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296 |
307
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297 } |
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|
298 #endif |
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299 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
300 if (ngx_add_conn && (ngx_event_flags & NGX_USE_EPOLL_EVENT) == 0) { |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
301 if (ngx_add_conn(c) == NGX_ERROR) { |
543 | 302 ngx_close_accepted_connection(c); |
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
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parents:
86
diff
changeset
|
303 return; |
64
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
304 } |
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
305 } |
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
306 |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
307 log->data = NULL; |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
164
diff
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|
308 log->handler = NULL; |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
164
diff
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|
309 |
543 | 310 ls->handler(c); |
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
311 |
455 | 312 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
313 ev->available--; |
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
314 } |
191
71ce40b3c37b
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parents:
164
diff
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315 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 } while (ev->available); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 } |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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parents:
164
diff
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|
318 |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
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164
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|
319 |
493 | 320 ngx_int_t |
321 ngx_trylock_accept_mutex(ngx_cycle_t *cycle) | |
301
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290
diff
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|
322 { |
611 | 323 if (ngx_shmtx_trylock(&ngx_accept_mutex)) { |
324 | |
301
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|
325 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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|
326 "accept mutex locked"); |
744965ec6275
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327 |
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diff
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328 if (ngx_accept_mutex_held && ngx_accept_events == 0) { |
573 | 329 return NGX_OK; |
330 } | |
301
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diff
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|
331 |
573 | 332 if (ngx_enable_accept_events(cycle) == NGX_ERROR) { |
611 | 333 ngx_shmtx_unlock(&ngx_accept_mutex); |
573 | 334 return NGX_ERROR; |
301
744965ec6275
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290
diff
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|
335 } |
744965ec6275
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290
diff
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|
336 |
719
f30b1a75fd3b
Solaris 10 event ports support
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parents:
714
diff
changeset
|
337 ngx_accept_events = 0; |
573 | 338 ngx_accept_mutex_held = 1; |
339 | |
301
744965ec6275
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|
340 return NGX_OK; |
744965ec6275
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diff
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|
341 } |
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290
diff
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|
342 |
719
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Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
343 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
f30b1a75fd3b
Solaris 10 event ports support
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parents:
714
diff
changeset
|
344 "accept mutex lock failed: %ui", ngx_accept_mutex_held); |
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
345 |
302
1526e7686b20
nginx-0.0.3-2004-04-01-10:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
301
diff
changeset
|
346 if (ngx_accept_mutex_held) { |
6153
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
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|
347 if (ngx_disable_accept_events(cycle, 0) == NGX_ERROR) { |
301
744965ec6275
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290
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|
348 return NGX_ERROR; |
744965ec6275
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290
diff
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|
349 } |
744965ec6275
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parents:
290
diff
changeset
|
350 |
302
1526e7686b20
nginx-0.0.3-2004-04-01-10:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
301
diff
changeset
|
351 ngx_accept_mutex_held = 0; |
301
744965ec6275
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parents:
290
diff
changeset
|
352 } |
744965ec6275
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290
diff
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|
353 |
744965ec6275
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|
354 return NGX_OK; |
744965ec6275
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290
diff
changeset
|
355 } |
744965ec6275
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290
diff
changeset
|
356 |
744965ec6275
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290
diff
changeset
|
357 |
7285
88a624c9b491
Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
Roman Arutyunyan <arut@nginx.com>
parents:
7284
diff
changeset
|
358 ngx_int_t |
493 | 359 ngx_enable_accept_events(ngx_cycle_t *cycle) |
301
744965ec6275
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290
diff
changeset
|
360 { |
543 | 361 ngx_uint_t i; |
362 ngx_listening_t *ls; | |
363 ngx_connection_t *c; | |
301
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290
diff
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|
364 |
543 | 365 ls = cycle->listening.elts; |
301
744965ec6275
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parents:
290
diff
changeset
|
366 for (i = 0; i < cycle->listening.nelts; i++) { |
744965ec6275
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290
diff
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|
367 |
543 | 368 c = ls[i].connection; |
301
744965ec6275
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290
diff
changeset
|
369 |
6153
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The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
370 if (c == NULL || c->read->active) { |
4618
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
371 continue; |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
372 } |
c05cfc46b3bc
Accept moderation in case of EMFILE/ENFILE.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4613
diff
changeset
|
373 |
6126
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
374 if (ngx_add_event(c->read, NGX_READ_EVENT, 0) == NGX_ERROR) { |
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
375 return NGX_ERROR; |
301
744965ec6275
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Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
376 } |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
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parents:
290
diff
changeset
|
377 } |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
378 |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
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parents:
290
diff
changeset
|
379 return NGX_OK; |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
380 } |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
381 |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
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parents:
290
diff
changeset
|
382 |
573 | 383 static ngx_int_t |
6153
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
384 ngx_disable_accept_events(ngx_cycle_t *cycle, ngx_uint_t all) |
301
744965ec6275
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parents:
290
diff
changeset
|
385 { |
543 | 386 ngx_uint_t i; |
387 ngx_listening_t *ls; | |
388 ngx_connection_t *c; | |
301
744965ec6275
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parents:
290
diff
changeset
|
389 |
543 | 390 ls = cycle->listening.elts; |
301
744965ec6275
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parents:
290
diff
changeset
|
391 for (i = 0; i < cycle->listening.nelts; i++) { |
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
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parents:
290
diff
changeset
|
392 |
543 | 393 c = ls[i].connection; |
394 | |
6153
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The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
395 if (c == NULL || !c->read->active) { |
543 | 396 continue; |
397 } | |
301
744965ec6275
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Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
398 |
6153
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
399 #if (NGX_HAVE_REUSEPORT) |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
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parents:
6126
diff
changeset
|
400 |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
401 /* |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
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parents:
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diff
changeset
|
402 * do not disable accept on worker's own sockets |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
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parents:
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diff
changeset
|
403 * when disabling accept events due to accept mutex |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
404 */ |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
405 |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
406 if (ls[i].reuseport && !all) { |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
407 continue; |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
408 } |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
409 |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
410 #endif |
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6126
diff
changeset
|
411 |
6126
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
412 if (ngx_del_event(c->read, NGX_READ_EVENT, NGX_DISABLE_EVENT) |
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
413 == NGX_ERROR) |
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
414 { |
adba26ff70b5
Removed the obsolete rtsig module.
Ruslan Ermilov <ru@nginx.com>
parents:
6125
diff
changeset
|
415 return NGX_ERROR; |
301
744965ec6275
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Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
416 } |
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417 } |
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418 |
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419 return NGX_OK; |
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420 } |
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421 |
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422 |
493 | 423 static void |
543 | 424 ngx_close_accepted_connection(ngx_connection_t *c) |
419
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425 { |
543 | 426 ngx_socket_t fd; |
427 | |
428 ngx_free_connection(c); | |
429 | |
430 fd = c->fd; | |
431 c->fd = (ngx_socket_t) -1; | |
432 | |
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433 if (ngx_close_socket(fd) == -1) { |
543 | 434 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, |
419
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435 ngx_close_socket_n " failed"); |
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436 } |
495 | 437 |
543 | 438 if (c->pool) { |
439 ngx_destroy_pool(c->pool); | |
440 } | |
441 | |
495 | 442 #if (NGX_STAT_STUB) |
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443 (void) ngx_atomic_fetch_add(ngx_stat_active, -1); |
495 | 444 #endif |
419
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445 } |
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446 |
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447 |
543 | 448 u_char * |
493 | 449 ngx_accept_log_error(ngx_log_t *log, u_char *buf, size_t len) |
191
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450 { |
543 | 451 return ngx_snprintf(buf, len, " while accepting new connection on %V", |
452 log->data); | |
191
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453 } |
6436 | 454 |
455 | |
456 #if (NGX_DEBUG) | |
457 | |
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458 void |
6436 | 459 ngx_debug_accepted_connection(ngx_event_conf_t *ecf, ngx_connection_t *c) |
460 { | |
461 struct sockaddr_in *sin; | |
462 ngx_cidr_t *cidr; | |
463 ngx_uint_t i; | |
464 #if (NGX_HAVE_INET6) | |
465 struct sockaddr_in6 *sin6; | |
466 ngx_uint_t n; | |
467 #endif | |
468 | |
469 cidr = ecf->debug_connection.elts; | |
470 for (i = 0; i < ecf->debug_connection.nelts; i++) { | |
471 if (cidr[i].family != (ngx_uint_t) c->sockaddr->sa_family) { | |
472 goto next; | |
473 } | |
474 | |
475 switch (cidr[i].family) { | |
476 | |
477 #if (NGX_HAVE_INET6) | |
478 case AF_INET6: | |
479 sin6 = (struct sockaddr_in6 *) c->sockaddr; | |
480 for (n = 0; n < 16; n++) { | |
481 if ((sin6->sin6_addr.s6_addr[n] | |
482 & cidr[i].u.in6.mask.s6_addr[n]) | |
483 != cidr[i].u.in6.addr.s6_addr[n]) | |
484 { | |
485 goto next; | |
486 } | |
487 } | |
488 break; | |
489 #endif | |
490 | |
491 #if (NGX_HAVE_UNIX_DOMAIN) | |
492 case AF_UNIX: | |
493 break; | |
494 #endif | |
495 | |
496 default: /* AF_INET */ | |
497 sin = (struct sockaddr_in *) c->sockaddr; | |
498 if ((sin->sin_addr.s_addr & cidr[i].u.in.mask) | |
499 != cidr[i].u.in.addr) | |
500 { | |
501 goto next; | |
502 } | |
503 break; | |
504 } | |
505 | |
506 c->log->log_level = NGX_LOG_DEBUG_CONNECTION|NGX_LOG_DEBUG_ALL; | |
507 break; | |
508 | |
509 next: | |
510 continue; | |
511 } | |
512 } | |
513 | |
514 #endif |