nginx-quic: src/stream/ngx_stream_limit_conn

annotate src/stream/ngx_stream_limit_conn_module.c @ 7594:359b0ea2b067

Limit conn: limit_conn_dry_run directive. A new directive limit_conn_dry_run allows enabling the dry run mode. In this mode connections are not rejected, but reject status is logged as usual.

author	Roman Arutyunyan <arut@nginx.com>
date	Tue, 19 Nov 2019 11:30:41 +0300
parents	3908156a51fa
children	9606d93aa586

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;
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	42 ngx_flag_t dry_run;
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	43 } ngx_stream_limit_conn_conf_t;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	46 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	47 ngx_str_t *key, uint32_t hash);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48 static void ngx_stream_limit_conn_cleanup(void *data);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	49 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	50
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 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	52 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	53 void *child);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54 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	55 void *conf);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56 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	57 void *conf);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58 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	59
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 static ngx_conf_enum_t ngx_stream_limit_conn_log_levels[] = {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 { ngx_string("info"), NGX_LOG_INFO },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63 { ngx_string("notice"), NGX_LOG_NOTICE },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64 { ngx_string("warn"), NGX_LOG_WARN },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 { ngx_string("error"), NGX_LOG_ERR },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 { ngx_null_string, 0 }
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70 static ngx_command_t ngx_stream_limit_conn_commands[] = {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72 { ngx_string("limit_conn_zone"),
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 NGX_STREAM_MAIN_CONF\|NGX_CONF_TAKE2,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74 ngx_stream_limit_conn_zone,
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 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77 NULL },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	78
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	79 { ngx_string("limit_conn"),
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	80 NGX_STREAM_MAIN_CONF\|NGX_STREAM_SRV_CONF\|NGX_CONF_TAKE2,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	81 ngx_stream_limit_conn,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 NGX_STREAM_SRV_CONF_OFFSET,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84 NULL },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86 { ngx_string("limit_conn_log_level"),
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 NGX_STREAM_MAIN_CONF\|NGX_STREAM_SRV_CONF\|NGX_CONF_TAKE1,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 ngx_conf_set_enum_slot,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 NGX_STREAM_SRV_CONF_OFFSET,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	90 offsetof(ngx_stream_limit_conn_conf_t, log_level),
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91 &ngx_stream_limit_conn_log_levels },
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	93 { ngx_string("limit_conn_dry_run"),
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	94 NGX_STREAM_MAIN_CONF\|NGX_STREAM_SRV_CONF\|NGX_CONF_FLAG,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	95 ngx_conf_set_flag_slot,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	96 NGX_STREAM_SRV_CONF_OFFSET,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	97 offsetof(ngx_stream_limit_conn_conf_t, dry_run),
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	98 NULL },
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	99
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100 ngx_null_command
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	101 };
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104 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	105 NULL, /* preconfiguration */
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106 ngx_stream_limit_conn_init, /* postconfiguration */
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 NULL, /* create main configuration */
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 NULL, /* init main configuration */
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 ngx_stream_limit_conn_create_conf, /* create server configuration */
6629 8ed51b02f655 Stream: style. Vladimir Homutov <vl@nginx.com> parents: 6610 diff changeset	112 ngx_stream_limit_conn_merge_conf /* merge server configuration */
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113 };
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 ngx_module_t ngx_stream_limit_conn_module = {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 NGX_MODULE_V1,
6601 d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	118 &ngx_stream_limit_conn_module_ctx, /* module context */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	119 ngx_stream_limit_conn_commands, /* module directives */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	120 NGX_STREAM_MODULE, /* module type */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	121 NULL, /* init master */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	122 NULL, /* init module */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	123 NULL, /* init process */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	124 NULL, /* init thread */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	125 NULL, /* exit thread */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	126 NULL, /* exit process */
d452cb27639f Style. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	127 NULL, /* exit master */
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 NGX_MODULE_V1_PADDING
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129 };
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	131
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	132 static ngx_int_t
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 ngx_stream_limit_conn_handler(ngx_stream_session_t *s)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 size_t n;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 uint32_t hash;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 ngx_str_t key;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 ngx_uint_t i;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139 ngx_slab_pool_t *shpool;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 ngx_rbtree_node_t *node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 ngx_pool_cleanup_t *cln;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142 ngx_stream_limit_conn_ctx_t *ctx;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 ngx_stream_limit_conn_node_t *lc;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144 ngx_stream_limit_conn_conf_t *lccf;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145 ngx_stream_limit_conn_limit_t *limits;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	146 ngx_stream_limit_conn_cleanup_t *lccln;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 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	149 limits = lccf->limits.elts;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151 for (i = 0; i < lccf->limits.nelts; i++) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 ctx = limits[i].shm_zone->data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153
6610 d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	154 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	155 return NGX_ERROR;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	156 }
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	157
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	158 if (key.len == 0) {
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 if (key.len > 255) {
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	163 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	164 "the value of the \"%V\" key "
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	165 "is more than 255 bytes: \"%V\"",
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	166 &ctx->key.value, &key);
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	167 continue;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	168 }
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	169
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	170 hash = ngx_crc32_short(key.data, key.len);
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	171
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 shpool = (ngx_slab_pool_t *) limits[i].shm_zone->shm.addr;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174 ngx_shmtx_lock(&shpool->mutex);
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_stream_limit_conn_lookup(ctx->rbtree, &key, hash);
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180 n = offsetof(ngx_rbtree_node_t, color)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181 + offsetof(ngx_stream_limit_conn_node_t, data)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182 + key.len;
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 node = ngx_slab_alloc_locked(shpool, n);
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 if (node == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 ngx_shmtx_unlock(&shpool->mutex);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	188 ngx_stream_limit_conn_cleanup_all(s->connection->pool);
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	189
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	190 if (lccf->dry_run) {
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	191 return NGX_DECLINED;
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	192 }
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	193
6693 3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	194 return NGX_STREAM_SERVICE_UNAVAILABLE;
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195 }
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 lc = (ngx_stream_limit_conn_node_t *) &node->color;
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 node->key = hash;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200 lc->len = (u_char) key.len;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	201 lc->conn = 1;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	202 ngx_memcpy(lc->data, key.data, key.len);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	203
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 ngx_rbtree_insert(ctx->rbtree, node);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 } else {
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 lc = (ngx_stream_limit_conn_node_t *) &node->color;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210 if ((ngx_uint_t) lc->conn >= limits[i].conn) {
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_shmtx_unlock(&shpool->mutex);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	213
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	214 ngx_log_error(lccf->log_level, s->connection->log, 0,
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	215 "limiting connections%s by zone \"%V\"",
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	216 lccf->dry_run ? ", dry run," : "",
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 &limits[i].shm_zone->shm.name);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 ngx_stream_limit_conn_cleanup_all(s->connection->pool);
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	220
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	221 if (lccf->dry_run) {
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	222 return NGX_DECLINED;
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	223 }
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	224
6693 3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	225 return NGX_STREAM_SERVICE_UNAVAILABLE;
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	228 lc->conn++;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
6480 f01ab2dbcfdc Fixed logging. Sergey Kandaurov <pluknet@nginx.com> parents: 6197 diff changeset	232 "limit conn: %08Xi %d", node->key, lc->conn);
6197 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 ngx_shmtx_unlock(&shpool->mutex);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 cln = ngx_pool_cleanup_add(s->connection->pool,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237 sizeof(ngx_stream_limit_conn_cleanup_t));
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 if (cln == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	239 return NGX_ERROR;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	242 cln->handler = ngx_stream_limit_conn_cleanup;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 lccln = cln->data;
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 lccln->shm_zone = limits[i].shm_zone;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 lccln->node = node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	247 }
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 return NGX_DECLINED;
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
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 static void
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	254 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	255 ngx_rbtree_node_t node, ngx_rbtree_node_t sentinel)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	256 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 ngx_rbtree_node_t **p;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258 ngx_stream_limit_conn_node_t lcn, lcnt;
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 for ( ;; ) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	261
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	262 if (node->key < temp->key) {
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 p = &temp->left;
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 } else if (node->key > temp->key) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	267
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	268 p = &temp->right;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	269
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	270 } else { /* node->key == temp->key */
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	271
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	272 lcn = (ngx_stream_limit_conn_node_t *) &node->color;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	273 lcnt = (ngx_stream_limit_conn_node_t *) &temp->color;
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 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	276 ? &temp->left : &temp->right;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277 }
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 if (*p == sentinel) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	280 break;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	281 }
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 temp = *p;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	284 }
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 *p = node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	287 node->parent = temp;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	288 node->left = sentinel;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289 node->right = sentinel;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	290 ngx_rbt_red(node);
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294 static ngx_rbtree_node_t *
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 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	296 uint32_t hash)
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 ngx_int_t rc;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	299 ngx_rbtree_node_t node, sentinel;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	300 ngx_stream_limit_conn_node_t *lcn;
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 node = rbtree->root;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303 sentinel = rbtree->sentinel;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	304
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	305 while (node != sentinel) {
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 if (hash < node->key) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	308 node = node->left;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	309 continue;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312 if (hash > node->key) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	313 node = node->right;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	314 continue;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	315 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	316
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	317 /* hash == node->key */
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	318
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	319 lcn = (ngx_stream_limit_conn_node_t *) &node->color;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321 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	322
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323 if (rc == 0) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	324 return node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	325 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	326
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	327 node = (rc < 0) ? node->left : node->right;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	328 }
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 return NULL;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	333
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	334 static void
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	335 ngx_stream_limit_conn_cleanup(void *data)
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 ngx_stream_limit_conn_cleanup_t *lccln = data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	338
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	339 ngx_slab_pool_t *shpool;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	340 ngx_rbtree_node_t *node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	341 ngx_stream_limit_conn_ctx_t *ctx;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	342 ngx_stream_limit_conn_node_t *lc;
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 ctx = lccln->shm_zone->data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	345 shpool = (ngx_slab_pool_t *) lccln->shm_zone->shm.addr;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	346 node = lccln->node;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	347 lc = (ngx_stream_limit_conn_node_t *) &node->color;
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_shmtx_lock(&shpool->mutex);
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 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, lccln->shm_zone->shm.log, 0,
6480 f01ab2dbcfdc Fixed logging. Sergey Kandaurov <pluknet@nginx.com> parents: 6197 diff changeset	352 "limit conn cleanup: %08Xi %d", node->key, lc->conn);
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	353
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	354 lc->conn--;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	355
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	356 if (lc->conn == 0) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	357 ngx_rbtree_delete(ctx->rbtree, node);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	358 ngx_slab_free_locked(shpool, node);
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 ngx_shmtx_unlock(&shpool->mutex);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	362 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	363
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 static ngx_inline void
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	366 ngx_stream_limit_conn_cleanup_all(ngx_pool_t *pool)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	367 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	368 ngx_pool_cleanup_t *cln;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	369
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	370 cln = pool->cleanup;
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 while (cln && cln->handler == ngx_stream_limit_conn_cleanup) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	373 ngx_stream_limit_conn_cleanup(cln->data);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	374 cln = cln->next;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	375 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	376
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	377 pool->cleanup = cln;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	378 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	379
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	380
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381 static ngx_int_t
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	382 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	383 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	384 ngx_stream_limit_conn_ctx_t *octx = data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	385
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	386 size_t len;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	387 ngx_slab_pool_t *shpool;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	388 ngx_rbtree_node_t *sentinel;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	389 ngx_stream_limit_conn_ctx_t *ctx;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	390
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	391 ctx = shm_zone->data;
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 if (octx) {
6610 d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	394 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	395 \|\| 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	396 ctx->key.value.len)
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	397 != 0)
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	398 {
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	399 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	400 "limit_conn_zone \"%V\" uses the \"%V\" key "
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	401 "while previously it used the \"%V\" key",
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	402 &shm_zone->shm.name, &ctx->key.value,
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	403 &octx->key.value);
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	404 return NGX_ERROR;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	405 }
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	406
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	407 ctx->rbtree = octx->rbtree;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	408
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	409 return NGX_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	410 }
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 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	413
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	414 if (shm_zone->shm.exists) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	415 ctx->rbtree = shpool->data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	416
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	417 return NGX_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	418 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	420 ctx->rbtree = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_t));
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	421 if (ctx->rbtree == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	422 return NGX_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	423 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	424
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	425 shpool->data = ctx->rbtree;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	426
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	427 sentinel = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_node_t));
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	428 if (sentinel == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	429 return NGX_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	430 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	431
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	432 ngx_rbtree_init(ctx->rbtree, sentinel,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	433 ngx_stream_limit_conn_rbtree_insert_value);
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 len = sizeof(" in limit_conn_zone \"\"") + shm_zone->shm.name.len;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	436
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	437 shpool->log_ctx = ngx_slab_alloc(shpool, len);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	438 if (shpool->log_ctx == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	439 return NGX_ERROR;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	442 ngx_sprintf(shpool->log_ctx, " in limit_conn_zone \"%V\"%Z",
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	443 &shm_zone->shm.name);
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 return NGX_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	446 }
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	449 static void *
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	450 ngx_stream_limit_conn_create_conf(ngx_conf_t *cf)
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 ngx_stream_limit_conn_conf_t *conf;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	453
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	454 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	455 if (conf == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	456 return NULL;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	459 /*
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	460 * set by ngx_pcalloc():
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 * conf->limits.elts = NULL;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	465 conf->log_level = NGX_CONF_UNSET_UINT;
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	466 conf->dry_run = NGX_CONF_UNSET;
6197 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 return conf;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	469 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	470
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	471
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	472 static char *
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	473 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	474 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	475 ngx_stream_limit_conn_conf_t *prev = parent;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476 ngx_stream_limit_conn_conf_t *conf = child;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	477
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	478 if (conf->limits.elts == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479 conf->limits = prev->limits;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	482 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	483
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	484 ngx_conf_merge_value(conf->dry_run, prev->dry_run, 0);
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6693 diff changeset	485
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	486 return NGX_CONF_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	487 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	488
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	489
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	490 static char *
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	491 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	492 {
6610 d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	493 u_char *p;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	494 ssize_t size;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	495 ngx_str_t *value, name, s;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	496 ngx_uint_t i;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	497 ngx_shm_zone_t *shm_zone;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	498 ngx_stream_limit_conn_ctx_t *ctx;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	499 ngx_stream_compile_complex_value_t ccv;
6197 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 value = cf->args->elts;
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 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	504 if (ctx == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 return NGX_CONF_ERROR;
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
6610 d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	508 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	509
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	510 ccv.cf = cf;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	511 ccv.value = &value[1];
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	512 ccv.complex_value = &ctx->key;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	513
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	514 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	515 return NGX_CONF_ERROR;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	516 }
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	517
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518 size = 0;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519 name.len = 0;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	520
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	521 for (i = 2; i < cf->args->nelts; i++) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	522
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
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 name.data = value[i].data + 5;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	527 p = (u_char *) ngx_strchr(name.data, ':');
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	528
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	529 if (p == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	530 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	531 "invalid zone size \"%V\"", &value[i]);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	532 return NGX_CONF_ERROR;
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 name.len = p - name.data;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537 s.data = p + 1;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 s.len = value[i].data + value[i].len - s.data;
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 size = ngx_parse_size(&s);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	541
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542 if (size == NGX_ERROR) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	543 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	544 "invalid zone size \"%V\"", &value[i]);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	545 return NGX_CONF_ERROR;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	548 if (size < (ssize_t) (8 * ngx_pagesize)) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	549 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	550 "zone \"%V\" is too small", &value[i]);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	551 return NGX_CONF_ERROR;
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	554 continue;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	555 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	556
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 "invalid parameter \"%V\"", &value[i]);
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 if (name.len == 0) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	563 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564 "\"%V\" must have \"zone\" parameter",
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565 &cmd->name);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	566 return NGX_CONF_ERROR;
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 shm_zone = ngx_shared_memory_add(cf, &name, size,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570 &ngx_stream_limit_conn_module);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	571 if (shm_zone == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	573 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	574
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	575 if (shm_zone->data) {
6610 d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	576 ctx = shm_zone->data;
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	577
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	578 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	579 "%V \"%V\" is already bound to key \"%V\"",
d5b5866c06c4 Stream: got rid of pseudo variables. Vladimir Homutov <vl@nginx.com> parents: 6606 diff changeset	580 &cmd->name, &name, &ctx->key.value);
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	581 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	582 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	583
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	584 shm_zone->init = ngx_stream_limit_conn_init_zone;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	585 shm_zone->data = ctx;
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 return NGX_CONF_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	588 }
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	591 static char *
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	592 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	593 {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	594 ngx_shm_zone_t *shm_zone;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	595 ngx_stream_limit_conn_conf_t *lccf = conf;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	596 ngx_stream_limit_conn_limit_t limit, limits;
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 ngx_str_t *value;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	599 ngx_int_t n;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	600 ngx_uint_t i;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	601
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	602 value = cf->args->elts;
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 shm_zone = ngx_shared_memory_add(cf, &value[1], 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	605 &ngx_stream_limit_conn_module);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606 if (shm_zone == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610 limits = lccf->limits.elts;
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 (limits == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613 if (ngx_array_init(&lccf->limits, cf->pool, 1,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	614 sizeof(ngx_stream_limit_conn_limit_t))
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 != NGX_OK)
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 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	621 for (i = 0; i < lccf->limits.nelts; i++) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622 if (shm_zone == limits[i].shm_zone) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 return "is duplicate";
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	624 }
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
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627 n = ngx_atoi(value[2].data, value[2].len);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 if (n <= 0) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	629 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 "invalid number of connections \"%V\"", &value[2]);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	632 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 if (n > 65535) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	635 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	636 "connection limit must be less 65536");
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	640 limit = ngx_array_push(&lccf->limits);
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	641 if (limit == NULL) {
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	642 return NGX_CONF_ERROR;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	643 }
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 limit->conn = n;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	646 limit->shm_zone = shm_zone;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	647
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	648 return NGX_CONF_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649 }
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	652 static ngx_int_t
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	653 ngx_stream_limit_conn_init(ngx_conf_t *cf)
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	654 {
6693 3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	655 ngx_stream_handler_pt *h;
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	656 ngx_stream_core_main_conf_t *cmcf;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	657
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	658 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	659
6693 3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	660 h = ngx_array_push(&cmcf->phases[NGX_STREAM_PREACCESS_PHASE].handlers);
3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	661 if (h == NULL) {
3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	662 return NGX_ERROR;
3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	663 }
3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	664
3908156a51fa Stream: phases. Roman Arutyunyan <arut@nginx.com> parents: 6629 diff changeset	665 *h = ngx_stream_limit_conn_handler;
6197 0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	666
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	667 return NGX_OK;
0dcef374b8bb Stream: connection limiting module. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668 }

Mercurial > hg > nginx-quic

annotate src/stream/ngx_stream_limit_conn_module.c @ 7594:359b0ea2b067