Mercurial > hg > nginx-quic
annotate src/stream/ngx_stream_limit_conn_module.c @ 7247:b329c0ab1a48
Configure: restored "no-threads" in OpenSSL builds.
This was previously used, but was incorrectly removed in 83d54192e97b
while removing old threads remnants. Instead of using it conditionally
when threads are not used, we now set in unconditionally, as even with
thread pools enabled we never call OpenSSL functions in threads.
This fixes resulting binary when using --with-openssl with OpenSSL 1.1.0+
and without -lpthread linked (notably on FreeBSD without PCRE).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 22 Mar 2018 15:56:07 +0300 |
parents | 3908156a51fa |
children | 359b0ea2b067 |
rev | line source |
---|---|
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
2 /* |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
4 * Copyright (C) Nginx, Inc. |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
5 */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
6 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
7 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
8 #include <ngx_config.h> |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
9 #include <ngx_core.h> |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
10 #include <ngx_stream.h> |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
11 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
12 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
13 typedef struct { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
14 u_char color; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
15 u_char len; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
16 u_short conn; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
17 u_char data[1]; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
18 } ngx_stream_limit_conn_node_t; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
19 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
20 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
21 typedef struct { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
22 ngx_shm_zone_t *shm_zone; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
23 ngx_rbtree_node_t *node; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
24 } ngx_stream_limit_conn_cleanup_t; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
25 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
26 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
27 typedef struct { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
28 ngx_rbtree_t *rbtree; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
29 ngx_stream_complex_value_t key; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
30 } ngx_stream_limit_conn_ctx_t; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
31 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
32 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
33 typedef struct { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
34 ngx_shm_zone_t *shm_zone; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
35 ngx_uint_t conn; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
36 } ngx_stream_limit_conn_limit_t; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
37 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
38 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
39 typedef struct { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
40 ngx_array_t limits; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
41 ngx_uint_t log_level; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
42 } ngx_stream_limit_conn_conf_t; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
43 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
44 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
45 static ngx_rbtree_node_t *ngx_stream_limit_conn_lookup(ngx_rbtree_t *rbtree, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
46 ngx_str_t *key, uint32_t hash); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
47 static void ngx_stream_limit_conn_cleanup(void *data); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
48 static ngx_inline void ngx_stream_limit_conn_cleanup_all(ngx_pool_t *pool); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
49 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
50 static void *ngx_stream_limit_conn_create_conf(ngx_conf_t *cf); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
51 static char *ngx_stream_limit_conn_merge_conf(ngx_conf_t *cf, void *parent, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
52 void *child); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
53 static char *ngx_stream_limit_conn_zone(ngx_conf_t *cf, ngx_command_t *cmd, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
54 void *conf); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
55 static char *ngx_stream_limit_conn(ngx_conf_t *cf, ngx_command_t *cmd, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
56 void *conf); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
57 static ngx_int_t ngx_stream_limit_conn_init(ngx_conf_t *cf); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
58 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
59 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
60 static ngx_conf_enum_t ngx_stream_limit_conn_log_levels[] = { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
61 { ngx_string("info"), NGX_LOG_INFO }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
62 { ngx_string("notice"), NGX_LOG_NOTICE }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
63 { ngx_string("warn"), NGX_LOG_WARN }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
64 { ngx_string("error"), NGX_LOG_ERR }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
65 { ngx_null_string, 0 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
66 }; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
67 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
68 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
69 static ngx_command_t ngx_stream_limit_conn_commands[] = { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
70 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
71 { ngx_string("limit_conn_zone"), |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
72 NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE2, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
73 ngx_stream_limit_conn_zone, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
74 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
75 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
76 NULL }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
77 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
78 { ngx_string("limit_conn"), |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
79 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE2, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
80 ngx_stream_limit_conn, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
81 NGX_STREAM_SRV_CONF_OFFSET, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
82 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
83 NULL }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
84 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
85 { ngx_string("limit_conn_log_level"), |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
86 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
87 ngx_conf_set_enum_slot, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
88 NGX_STREAM_SRV_CONF_OFFSET, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
89 offsetof(ngx_stream_limit_conn_conf_t, log_level), |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
90 &ngx_stream_limit_conn_log_levels }, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
91 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
92 ngx_null_command |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
93 }; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
94 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
95 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
96 static ngx_stream_module_t ngx_stream_limit_conn_module_ctx = { |
6606
2f41d383c9c7
Stream: added preconfiguration step.
Vladimir Homutov <vl@nginx.com>
parents:
6601
diff
changeset
|
97 NULL, /* preconfiguration */ |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
98 ngx_stream_limit_conn_init, /* postconfiguration */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
99 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
100 NULL, /* create main configuration */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
101 NULL, /* init main configuration */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
102 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
103 ngx_stream_limit_conn_create_conf, /* create server configuration */ |
6629 | 104 ngx_stream_limit_conn_merge_conf /* merge server configuration */ |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
105 }; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
106 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
107 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
108 ngx_module_t ngx_stream_limit_conn_module = { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
109 NGX_MODULE_V1, |
6601 | 110 &ngx_stream_limit_conn_module_ctx, /* module context */ |
111 ngx_stream_limit_conn_commands, /* module directives */ | |
112 NGX_STREAM_MODULE, /* module type */ | |
113 NULL, /* init master */ | |
114 NULL, /* init module */ | |
115 NULL, /* init process */ | |
116 NULL, /* init thread */ | |
117 NULL, /* exit thread */ | |
118 NULL, /* exit process */ | |
119 NULL, /* exit master */ | |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
120 NGX_MODULE_V1_PADDING |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
121 }; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
122 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
123 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
124 static ngx_int_t |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
125 ngx_stream_limit_conn_handler(ngx_stream_session_t *s) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
126 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
127 size_t n; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
128 uint32_t hash; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
129 ngx_str_t key; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
130 ngx_uint_t i; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
131 ngx_slab_pool_t *shpool; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
132 ngx_rbtree_node_t *node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
133 ngx_pool_cleanup_t *cln; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
134 ngx_stream_limit_conn_ctx_t *ctx; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
135 ngx_stream_limit_conn_node_t *lc; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
136 ngx_stream_limit_conn_conf_t *lccf; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
137 ngx_stream_limit_conn_limit_t *limits; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
138 ngx_stream_limit_conn_cleanup_t *lccln; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
139 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
140 lccf = ngx_stream_get_module_srv_conf(s, ngx_stream_limit_conn_module); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
141 limits = lccf->limits.elts; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
142 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
143 for (i = 0; i < lccf->limits.nelts; i++) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
144 ctx = limits[i].shm_zone->data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
145 |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
146 if (ngx_stream_complex_value(s, &ctx->key, &key) != NGX_OK) { |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
147 return NGX_ERROR; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
148 } |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
149 |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
150 if (key.len == 0) { |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
151 continue; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
152 } |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
153 |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
154 if (key.len > 255) { |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
155 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
156 "the value of the \"%V\" key " |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
157 "is more than 255 bytes: \"%V\"", |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
158 &ctx->key.value, &key); |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
159 continue; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
160 } |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
161 |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
162 hash = ngx_crc32_short(key.data, key.len); |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
163 |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
164 shpool = (ngx_slab_pool_t *) limits[i].shm_zone->shm.addr; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
165 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
166 ngx_shmtx_lock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
167 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
168 node = ngx_stream_limit_conn_lookup(ctx->rbtree, &key, hash); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
169 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
170 if (node == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
171 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
172 n = offsetof(ngx_rbtree_node_t, color) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
173 + offsetof(ngx_stream_limit_conn_node_t, data) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
174 + key.len; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
175 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
176 node = ngx_slab_alloc_locked(shpool, n); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
177 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
178 if (node == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
179 ngx_shmtx_unlock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
180 ngx_stream_limit_conn_cleanup_all(s->connection->pool); |
6693 | 181 return NGX_STREAM_SERVICE_UNAVAILABLE; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
182 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
183 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
184 lc = (ngx_stream_limit_conn_node_t *) &node->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
185 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
186 node->key = hash; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
187 lc->len = (u_char) key.len; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
188 lc->conn = 1; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
189 ngx_memcpy(lc->data, key.data, key.len); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
190 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
191 ngx_rbtree_insert(ctx->rbtree, node); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
192 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
193 } else { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
194 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
195 lc = (ngx_stream_limit_conn_node_t *) &node->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
196 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
197 if ((ngx_uint_t) lc->conn >= limits[i].conn) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
198 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
199 ngx_shmtx_unlock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
200 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
201 ngx_log_error(lccf->log_level, s->connection->log, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
202 "limiting connections by zone \"%V\"", |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
203 &limits[i].shm_zone->shm.name); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
204 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
205 ngx_stream_limit_conn_cleanup_all(s->connection->pool); |
6693 | 206 return NGX_STREAM_SERVICE_UNAVAILABLE; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
207 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
208 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
209 lc->conn++; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
210 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
211 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
212 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, |
6480 | 213 "limit conn: %08Xi %d", node->key, lc->conn); |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
214 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
215 ngx_shmtx_unlock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
216 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
217 cln = ngx_pool_cleanup_add(s->connection->pool, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
218 sizeof(ngx_stream_limit_conn_cleanup_t)); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
219 if (cln == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
220 return NGX_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
221 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
222 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
223 cln->handler = ngx_stream_limit_conn_cleanup; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
224 lccln = cln->data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
225 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
226 lccln->shm_zone = limits[i].shm_zone; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
227 lccln->node = node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
228 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
229 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
230 return NGX_DECLINED; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
231 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
232 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
233 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
234 static void |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
235 ngx_stream_limit_conn_rbtree_insert_value(ngx_rbtree_node_t *temp, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
236 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
237 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
238 ngx_rbtree_node_t **p; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
239 ngx_stream_limit_conn_node_t *lcn, *lcnt; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
240 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
241 for ( ;; ) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
242 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
243 if (node->key < temp->key) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
244 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
245 p = &temp->left; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
246 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
247 } else if (node->key > temp->key) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
248 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
249 p = &temp->right; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
250 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
251 } else { /* node->key == temp->key */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
252 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
253 lcn = (ngx_stream_limit_conn_node_t *) &node->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
254 lcnt = (ngx_stream_limit_conn_node_t *) &temp->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
255 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
256 p = (ngx_memn2cmp(lcn->data, lcnt->data, lcn->len, lcnt->len) < 0) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
257 ? &temp->left : &temp->right; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
258 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
259 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
260 if (*p == sentinel) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
261 break; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
262 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
263 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
264 temp = *p; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
265 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
266 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
267 *p = node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
268 node->parent = temp; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
269 node->left = sentinel; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
270 node->right = sentinel; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
271 ngx_rbt_red(node); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
272 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
273 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
274 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
275 static ngx_rbtree_node_t * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
276 ngx_stream_limit_conn_lookup(ngx_rbtree_t *rbtree, ngx_str_t *key, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
277 uint32_t hash) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
278 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
279 ngx_int_t rc; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
280 ngx_rbtree_node_t *node, *sentinel; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
281 ngx_stream_limit_conn_node_t *lcn; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
282 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
283 node = rbtree->root; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
284 sentinel = rbtree->sentinel; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
285 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
286 while (node != sentinel) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
287 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
288 if (hash < node->key) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
289 node = node->left; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
290 continue; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
291 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
292 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
293 if (hash > node->key) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
294 node = node->right; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
295 continue; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
296 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
297 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
298 /* hash == node->key */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
299 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
300 lcn = (ngx_stream_limit_conn_node_t *) &node->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
301 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
302 rc = ngx_memn2cmp(key->data, lcn->data, key->len, (size_t) lcn->len); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
303 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
304 if (rc == 0) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
305 return node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
306 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
307 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
308 node = (rc < 0) ? node->left : node->right; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
309 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
310 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
311 return NULL; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
312 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
313 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
314 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
315 static void |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
316 ngx_stream_limit_conn_cleanup(void *data) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
317 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
318 ngx_stream_limit_conn_cleanup_t *lccln = data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
319 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
320 ngx_slab_pool_t *shpool; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
321 ngx_rbtree_node_t *node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
322 ngx_stream_limit_conn_ctx_t *ctx; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
323 ngx_stream_limit_conn_node_t *lc; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
324 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
325 ctx = lccln->shm_zone->data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
326 shpool = (ngx_slab_pool_t *) lccln->shm_zone->shm.addr; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
327 node = lccln->node; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
328 lc = (ngx_stream_limit_conn_node_t *) &node->color; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
329 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
330 ngx_shmtx_lock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
331 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
332 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, lccln->shm_zone->shm.log, 0, |
6480 | 333 "limit conn cleanup: %08Xi %d", node->key, lc->conn); |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
334 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
335 lc->conn--; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
336 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
337 if (lc->conn == 0) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
338 ngx_rbtree_delete(ctx->rbtree, node); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
339 ngx_slab_free_locked(shpool, node); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
340 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
341 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
342 ngx_shmtx_unlock(&shpool->mutex); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
343 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
344 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
345 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
346 static ngx_inline void |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
347 ngx_stream_limit_conn_cleanup_all(ngx_pool_t *pool) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
348 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
349 ngx_pool_cleanup_t *cln; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
350 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
351 cln = pool->cleanup; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
352 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
353 while (cln && cln->handler == ngx_stream_limit_conn_cleanup) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
354 ngx_stream_limit_conn_cleanup(cln->data); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
355 cln = cln->next; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
356 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
357 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
358 pool->cleanup = cln; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
359 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
360 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
361 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
362 static ngx_int_t |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
363 ngx_stream_limit_conn_init_zone(ngx_shm_zone_t *shm_zone, void *data) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
364 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
365 ngx_stream_limit_conn_ctx_t *octx = data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
366 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
367 size_t len; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
368 ngx_slab_pool_t *shpool; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
369 ngx_rbtree_node_t *sentinel; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
370 ngx_stream_limit_conn_ctx_t *ctx; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
371 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
372 ctx = shm_zone->data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
373 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
374 if (octx) { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
375 if (ctx->key.value.len != octx->key.value.len |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
376 || ngx_strncmp(ctx->key.value.data, octx->key.value.data, |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
377 ctx->key.value.len) |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
378 != 0) |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
379 { |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
380 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0, |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
381 "limit_conn_zone \"%V\" uses the \"%V\" key " |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
382 "while previously it used the \"%V\" key", |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
383 &shm_zone->shm.name, &ctx->key.value, |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
384 &octx->key.value); |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
385 return NGX_ERROR; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
386 } |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
387 |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
388 ctx->rbtree = octx->rbtree; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
389 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
390 return NGX_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
391 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
392 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
393 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
394 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
395 if (shm_zone->shm.exists) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
396 ctx->rbtree = shpool->data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
397 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
398 return NGX_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
399 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
400 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
401 ctx->rbtree = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_t)); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
402 if (ctx->rbtree == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
403 return NGX_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
404 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
405 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
406 shpool->data = ctx->rbtree; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
407 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
408 sentinel = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_node_t)); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
409 if (sentinel == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
410 return NGX_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
411 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
412 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
413 ngx_rbtree_init(ctx->rbtree, sentinel, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
414 ngx_stream_limit_conn_rbtree_insert_value); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
415 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
416 len = sizeof(" in limit_conn_zone \"\"") + shm_zone->shm.name.len; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
417 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
418 shpool->log_ctx = ngx_slab_alloc(shpool, len); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
419 if (shpool->log_ctx == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
420 return NGX_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
421 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
422 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
423 ngx_sprintf(shpool->log_ctx, " in limit_conn_zone \"%V\"%Z", |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
424 &shm_zone->shm.name); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
425 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
426 return NGX_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
427 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
428 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
429 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
430 static void * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
431 ngx_stream_limit_conn_create_conf(ngx_conf_t *cf) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
432 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
433 ngx_stream_limit_conn_conf_t *conf; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
434 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
435 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_limit_conn_conf_t)); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
436 if (conf == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
437 return NULL; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
438 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
439 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
440 /* |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
441 * set by ngx_pcalloc(): |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
442 * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
443 * conf->limits.elts = NULL; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
444 */ |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
445 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
446 conf->log_level = NGX_CONF_UNSET_UINT; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
447 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
448 return conf; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
449 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
450 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
451 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
452 static char * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
453 ngx_stream_limit_conn_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
454 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
455 ngx_stream_limit_conn_conf_t *prev = parent; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
456 ngx_stream_limit_conn_conf_t *conf = child; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
457 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
458 if (conf->limits.elts == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
459 conf->limits = prev->limits; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
460 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
461 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
462 ngx_conf_merge_uint_value(conf->log_level, prev->log_level, NGX_LOG_ERR); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
463 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
464 return NGX_CONF_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
465 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
466 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
467 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
468 static char * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
469 ngx_stream_limit_conn_zone(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
470 { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
471 u_char *p; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
472 ssize_t size; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
473 ngx_str_t *value, name, s; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
474 ngx_uint_t i; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
475 ngx_shm_zone_t *shm_zone; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
476 ngx_stream_limit_conn_ctx_t *ctx; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
477 ngx_stream_compile_complex_value_t ccv; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
478 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
479 value = cf->args->elts; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
480 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
481 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_limit_conn_ctx_t)); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
482 if (ctx == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
483 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
484 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
485 |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
486 ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t)); |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
487 |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
488 ccv.cf = cf; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
489 ccv.value = &value[1]; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
490 ccv.complex_value = &ctx->key; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
491 |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
492 if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) { |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
493 return NGX_CONF_ERROR; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
494 } |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
495 |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
496 size = 0; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
497 name.len = 0; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
498 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
499 for (i = 2; i < cf->args->nelts; i++) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
500 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
501 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
502 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
503 name.data = value[i].data + 5; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
504 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
505 p = (u_char *) ngx_strchr(name.data, ':'); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
506 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
507 if (p == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
508 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
509 "invalid zone size \"%V\"", &value[i]); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
510 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
511 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
512 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
513 name.len = p - name.data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
514 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
515 s.data = p + 1; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
516 s.len = value[i].data + value[i].len - s.data; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
517 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
518 size = ngx_parse_size(&s); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
519 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
520 if (size == NGX_ERROR) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
521 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
522 "invalid zone size \"%V\"", &value[i]); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
523 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
524 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
525 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
526 if (size < (ssize_t) (8 * ngx_pagesize)) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
527 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
528 "zone \"%V\" is too small", &value[i]); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
529 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
530 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
531 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
532 continue; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
533 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
534 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
535 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
536 "invalid parameter \"%V\"", &value[i]); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
537 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
538 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
539 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
540 if (name.len == 0) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
541 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
542 "\"%V\" must have \"zone\" parameter", |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
543 &cmd->name); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
544 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
545 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
546 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
547 shm_zone = ngx_shared_memory_add(cf, &name, size, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
548 &ngx_stream_limit_conn_module); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
549 if (shm_zone == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
550 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
551 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
552 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
553 if (shm_zone->data) { |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
554 ctx = shm_zone->data; |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
555 |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
556 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
6610
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
557 "%V \"%V\" is already bound to key \"%V\"", |
d5b5866c06c4
Stream: got rid of pseudo variables.
Vladimir Homutov <vl@nginx.com>
parents:
6606
diff
changeset
|
558 &cmd->name, &name, &ctx->key.value); |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
559 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
560 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
561 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
562 shm_zone->init = ngx_stream_limit_conn_init_zone; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
563 shm_zone->data = ctx; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
564 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
565 return NGX_CONF_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
566 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
567 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
568 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
569 static char * |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
570 ngx_stream_limit_conn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
571 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
572 ngx_shm_zone_t *shm_zone; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
573 ngx_stream_limit_conn_conf_t *lccf = conf; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
574 ngx_stream_limit_conn_limit_t *limit, *limits; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
575 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
576 ngx_str_t *value; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
577 ngx_int_t n; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
578 ngx_uint_t i; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
579 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
580 value = cf->args->elts; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
581 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
582 shm_zone = ngx_shared_memory_add(cf, &value[1], 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
583 &ngx_stream_limit_conn_module); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
584 if (shm_zone == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
585 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
586 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
587 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
588 limits = lccf->limits.elts; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
589 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
590 if (limits == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
591 if (ngx_array_init(&lccf->limits, cf->pool, 1, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
592 sizeof(ngx_stream_limit_conn_limit_t)) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
593 != NGX_OK) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
594 { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
595 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
596 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
597 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
598 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
599 for (i = 0; i < lccf->limits.nelts; i++) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
600 if (shm_zone == limits[i].shm_zone) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
601 return "is duplicate"; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
602 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
603 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
604 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
605 n = ngx_atoi(value[2].data, value[2].len); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
606 if (n <= 0) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
607 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
608 "invalid number of connections \"%V\"", &value[2]); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
609 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
610 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
611 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
612 if (n > 65535) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
613 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
614 "connection limit must be less 65536"); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
615 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
616 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
617 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
618 limit = ngx_array_push(&lccf->limits); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
619 if (limit == NULL) { |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
620 return NGX_CONF_ERROR; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
621 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
622 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
623 limit->conn = n; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
624 limit->shm_zone = shm_zone; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
625 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
626 return NGX_CONF_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
627 } |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
628 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
629 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
630 static ngx_int_t |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
631 ngx_stream_limit_conn_init(ngx_conf_t *cf) |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
632 { |
6693 | 633 ngx_stream_handler_pt *h; |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
634 ngx_stream_core_main_conf_t *cmcf; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
635 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
636 cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
637 |
6693 | 638 h = ngx_array_push(&cmcf->phases[NGX_STREAM_PREACCESS_PHASE].handlers); |
639 if (h == NULL) { | |
640 return NGX_ERROR; | |
641 } | |
642 | |
643 *h = ngx_stream_limit_conn_handler; | |
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
644 |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
645 return NGX_OK; |
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
646 } |