nginx: src/http/modules/ngx_http_limit_conn

annotate src/http/modules/ngx_http_limit_conn_module.c @ 7746:88eca63261c3

gRPC: RST_STREAM(NO_ERROR) handling after "trailer only" responses. Similarly to the problem fixed in 2096b21fcd10 (ticket #1792), when a "trailer only" gRPC response (that is, a response with the END_STREAM flag in the HEADERS frame) was immediately followed by RST_STREAM(NO_ERROR) in the data preread along with the response header, RST_STREAM wasn't properly skipped and caused "upstream rejected request with error 0" errors. Observed with "unknown service" gRPC errors returned by grpc-go. Fix is to set ctx->done if we are going to parse additional data, so the RST_STREAM(NO_ERROR) is properly skipped. Additionally, now ngx_http_grpc_filter() will complain about frames sent for closed stream if there are any.

author	Pavel Pautov <p.pautov@f5.com>
date	Wed, 18 Nov 2020 18:41:16 -0800
parents	b45f052483b8
children

rev	line source
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	2 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	3 * Copyright (C) Igor Sysoev
4412 d620f497c50f Copyright updated. Maxim Konovalov <maxim@nginx.com> parents: 4380 diff changeset	4 * Copyright (C) Nginx, Inc.
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	5 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	6
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	7
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	8 #include <ngx_config.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	9 #include <ngx_core.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	10 #include <ngx_http.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	11
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	12
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	13 #define NGX_HTTP_LIMIT_CONN_PASSED 1
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	14 #define NGX_HTTP_LIMIT_CONN_REJECTED 2
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	15 #define NGX_HTTP_LIMIT_CONN_REJECTED_DRY_RUN 3
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	16
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	17
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	18 typedef struct {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	19 u_char color;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	20 u_char len;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	21 u_short conn;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	22 u_char data[1];
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	23 } ngx_http_limit_conn_node_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	24
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	25
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	26 typedef struct {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	27 ngx_shm_zone_t *shm_zone;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	28 ngx_rbtree_node_t *node;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	29 } ngx_http_limit_conn_cleanup_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	30
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	31
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	32 typedef struct {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	33 ngx_rbtree_t rbtree;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	34 ngx_rbtree_node_t sentinel;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	35 } ngx_http_limit_conn_shctx_t;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	36
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	37
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	38 typedef struct {
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	39 ngx_http_limit_conn_shctx_t *sh;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	40 ngx_slab_pool_t *shpool;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	41 ngx_http_complex_value_t key;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	42 } ngx_http_limit_conn_ctx_t;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	43
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	44
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	45 typedef struct {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	46 ngx_shm_zone_t *shm_zone;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	47 ngx_uint_t conn;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	48 } ngx_http_limit_conn_limit_t;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	49
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	50
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	51 typedef struct {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	52 ngx_array_t limits;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	53 ngx_uint_t log_level;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	54 ngx_uint_t status_code;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	55 ngx_flag_t dry_run;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	56 } ngx_http_limit_conn_conf_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	57
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	58
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	59 static ngx_rbtree_node_t ngx_http_limit_conn_lookup(ngx_rbtree_t rbtree,
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	60 ngx_str_t *key, uint32_t hash);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	61 static void ngx_http_limit_conn_cleanup(void *data);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	62 static ngx_inline void ngx_http_limit_conn_cleanup_all(ngx_pool_t *pool);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	63
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	64 static ngx_int_t ngx_http_limit_conn_status_variable(ngx_http_request_t *r,
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	65 ngx_http_variable_value_t *v, uintptr_t data);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	66 static void ngx_http_limit_conn_create_conf(ngx_conf_t cf);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	67 static char ngx_http_limit_conn_merge_conf(ngx_conf_t cf, void *parent,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	68 void *child);
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	69 static char ngx_http_limit_conn_zone(ngx_conf_t cf, ngx_command_t *cmd,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	70 void *conf);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	71 static char ngx_http_limit_conn(ngx_conf_t cf, ngx_command_t *cmd,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	72 void *conf);
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	73 static ngx_int_t ngx_http_limit_conn_add_variables(ngx_conf_t *cf);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	74 static ngx_int_t ngx_http_limit_conn_init(ngx_conf_t *cf);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	75
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	76
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	77 static ngx_conf_enum_t ngx_http_limit_conn_log_levels[] = {
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	78 { ngx_string("info"), NGX_LOG_INFO },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	79 { ngx_string("notice"), NGX_LOG_NOTICE },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	80 { ngx_string("warn"), NGX_LOG_WARN },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	81 { ngx_string("error"), NGX_LOG_ERR },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	82 { ngx_null_string, 0 }
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	83 };
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	84
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	85
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	86 static ngx_conf_num_bounds_t ngx_http_limit_conn_status_bounds = {
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	87 ngx_conf_check_num_bounds, 400, 599
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	88 };
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	89
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	90
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	91 static ngx_command_t ngx_http_limit_conn_commands[] = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	92
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	93 { ngx_string("limit_conn_zone"),
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	94 NGX_HTTP_MAIN_CONF\|NGX_CONF_TAKE2,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	95 ngx_http_limit_conn_zone,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	96 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	97 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	98 NULL },
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	99
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	100 { ngx_string("limit_conn"),
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	101 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE2,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	102 ngx_http_limit_conn,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	103 NGX_HTTP_LOC_CONF_OFFSET,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	104 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	105 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	106
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	107 { ngx_string("limit_conn_log_level"),
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	108 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	109 ngx_conf_set_enum_slot,
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	110 NGX_HTTP_LOC_CONF_OFFSET,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	111 offsetof(ngx_http_limit_conn_conf_t, log_level),
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	112 &ngx_http_limit_conn_log_levels },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	113
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	114 { ngx_string("limit_conn_status"),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	115 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	116 ngx_conf_set_num_slot,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	117 NGX_HTTP_LOC_CONF_OFFSET,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	118 offsetof(ngx_http_limit_conn_conf_t, status_code),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	119 &ngx_http_limit_conn_status_bounds },
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	120
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	121 { ngx_string("limit_conn_dry_run"),
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	122 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_FLAG,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	123 ngx_conf_set_flag_slot,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	124 NGX_HTTP_LOC_CONF_OFFSET,
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	125 offsetof(ngx_http_limit_conn_conf_t, dry_run),
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	126 NULL },
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	127
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	128 ngx_null_command
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	129 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	130
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	131
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	132 static ngx_http_module_t ngx_http_limit_conn_module_ctx = {
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	133 ngx_http_limit_conn_add_variables, /* preconfiguration */
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	134 ngx_http_limit_conn_init, /* postconfiguration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	135
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	136 NULL, /* create main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	137 NULL, /* init main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	138
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	139 NULL, /* create server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	140 NULL, /* merge server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	141
4499 778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	142 ngx_http_limit_conn_create_conf, /* create location configuration */
778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	143 ngx_http_limit_conn_merge_conf /* merge location configuration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	144 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	145
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	146
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	147 ngx_module_t ngx_http_limit_conn_module = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	148 NGX_MODULE_V1,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	149 &ngx_http_limit_conn_module_ctx, /* module context */
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	150 ngx_http_limit_conn_commands, /* module directives */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	151 NGX_HTTP_MODULE, /* module type */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	152 NULL, /* init master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	153 NULL, /* init module */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	154 NULL, /* init process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	155 NULL, /* init thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156 NULL, /* exit thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	157 NULL, /* exit process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	158 NULL, /* exit master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	159 NGX_MODULE_V1_PADDING
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	160 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	161
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	162
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	163 static ngx_http_variable_t ngx_http_limit_conn_vars[] = {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	164
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	165 { ngx_string("limit_conn_status"), NULL,
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	166 ngx_http_limit_conn_status_variable, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	167
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	168 ngx_http_null_variable
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	169 };
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	170
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	171
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	172 static ngx_str_t ngx_http_limit_conn_status[] = {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	173 ngx_string("PASSED"),
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	174 ngx_string("REJECTED"),
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	175 ngx_string("REJECTED_DRY_RUN")
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	176 };
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	177
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	178
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	179 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	180 ngx_http_limit_conn_handler(ngx_http_request_t *r)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	181 {
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	182 size_t n;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	183 uint32_t hash;
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	184 ngx_str_t key;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	185 ngx_uint_t i;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	186 ngx_rbtree_node_t *node;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	187 ngx_pool_cleanup_t *cln;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	188 ngx_http_limit_conn_ctx_t *ctx;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	189 ngx_http_limit_conn_node_t *lc;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	190 ngx_http_limit_conn_conf_t *lccf;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	191 ngx_http_limit_conn_limit_t *limits;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	192 ngx_http_limit_conn_cleanup_t *lccln;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	193
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	194 if (r->main->limit_conn_status) {
984 dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	195 return NGX_DECLINED;
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	196 }
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	197
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	198 lccf = ngx_http_get_module_loc_conf(r, ngx_http_limit_conn_module);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	199 limits = lccf->limits.elts;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	200
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	201 for (i = 0; i < lccf->limits.nelts; i++) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	202 ctx = limits[i].shm_zone->data;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	203
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	204 if (ngx_http_complex_value(r, &ctx->key, &key) != NGX_OK) {
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	205 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	206 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	207
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	208 if (key.len == 0) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	209 continue;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	210 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	211
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	212 if (key.len > 255) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	213 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	214 "the value of the \"%V\" key "
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	215 "is more than 255 bytes: \"%V\"",
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	216 &ctx->key.value, &key);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	217 continue;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	218 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	219
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	220 r->main->limit_conn_status = NGX_HTTP_LIMIT_CONN_PASSED;
4458 2d4ff8bd5649 Limit conn: returned to the old behavior of using the first actual limit on Valentin Bartenev <vbart@nginx.com> parents: 4412 diff changeset	221
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	222 hash = ngx_crc32_short(key.data, key.len);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	223
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	224 ngx_shmtx_lock(&ctx->shpool->mutex);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	225
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	226 node = ngx_http_limit_conn_lookup(&ctx->sh->rbtree, &key, hash);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	227
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	228 if (node == NULL) {
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	229
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	230 n = offsetof(ngx_rbtree_node_t, color)
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	231 + offsetof(ngx_http_limit_conn_node_t, data)
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	232 + key.len;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	233
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	234 node = ngx_slab_alloc_locked(ctx->shpool, n);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	235
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	236 if (node == NULL) {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	237 ngx_shmtx_unlock(&ctx->shpool->mutex);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	238 ngx_http_limit_conn_cleanup_all(r->pool);
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	239
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	240 if (lccf->dry_run) {
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	241 r->main->limit_conn_status =
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	242 NGX_HTTP_LIMIT_CONN_REJECTED_DRY_RUN;
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	243 return NGX_DECLINED;
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	244 }
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	245
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	246 r->main->limit_conn_status = NGX_HTTP_LIMIT_CONN_REJECTED;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	247
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	248 return lccf->status_code;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	249 }
2373 f4603d71f532 log 503 error reason Igor Sysoev <igor@sysoev.ru> parents: 2372 diff changeset	250
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	251 lc = (ngx_http_limit_conn_node_t *) &node->color;
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	252
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	253 node->key = hash;
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	254 lc->len = (u_char) key.len;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	255 lc->conn = 1;
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	256 ngx_memcpy(lc->data, key.data, key.len);
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	257
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	258 ngx_rbtree_insert(&ctx->sh->rbtree, node);
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	259
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	260 } else {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	261
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	262 lc = (ngx_http_limit_conn_node_t *) &node->color;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	263
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	264 if ((ngx_uint_t) lc->conn >= limits[i].conn) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	265
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	266 ngx_shmtx_unlock(&ctx->shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	267
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	268 ngx_log_error(lccf->log_level, r->connection->log, 0,
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	269 "limiting connections%s by zone \"%V\"",
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	270 lccf->dry_run ? ", dry run," : "",
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	271 &limits[i].shm_zone->shm.name);
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	272
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	273 ngx_http_limit_conn_cleanup_all(r->pool);
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	274
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	275 if (lccf->dry_run) {
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	276 r->main->limit_conn_status =
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	277 NGX_HTTP_LIMIT_CONN_REJECTED_DRY_RUN;
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	278 return NGX_DECLINED;
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	279 }
359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	280
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	281 r->main->limit_conn_status = NGX_HTTP_LIMIT_CONN_REJECTED;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	282
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	283 return lccf->status_code;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	284 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	285
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	286 lc->conn++;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	287 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	288
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	289 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
6480 f01ab2dbcfdc Fixed logging. Sergey Kandaurov <pluknet@nginx.com> parents: 5861 diff changeset	290 "limit conn: %08Xi %d", node->key, lc->conn);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	291
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	292 ngx_shmtx_unlock(&ctx->shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	293
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	294 cln = ngx_pool_cleanup_add(r->pool,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	295 sizeof(ngx_http_limit_conn_cleanup_t));
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	296 if (cln == NULL) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	297 return NGX_HTTP_INTERNAL_SERVER_ERROR;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	298 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	299
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	300 cln->handler = ngx_http_limit_conn_cleanup;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	301 lccln = cln->data;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	302
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	303 lccln->shm_zone = limits[i].shm_zone;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	304 lccln->node = node;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	305 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	306
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	307 return NGX_DECLINED;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	308 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	309
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	310
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	311 static void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	312 ngx_http_limit_conn_rbtree_insert_value(ngx_rbtree_node_t *temp,
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	313 ngx_rbtree_node_t node, ngx_rbtree_node_t sentinel)
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	314 {
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	315 ngx_rbtree_node_t **p;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	316 ngx_http_limit_conn_node_t lcn, lcnt;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	317
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	318 for ( ;; ) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	319
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	320 if (node->key < temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	321
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	322 p = &temp->left;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	323
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	324 } else if (node->key > temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	325
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	326 p = &temp->right;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	327
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	328 } else { /* node->key == temp->key */
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	329
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	330 lcn = (ngx_http_limit_conn_node_t *) &node->color;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	331 lcnt = (ngx_http_limit_conn_node_t *) &temp->color;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	332
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	333 p = (ngx_memn2cmp(lcn->data, lcnt->data, lcn->len, lcnt->len) < 0)
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	334 ? &temp->left : &temp->right;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	335 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	336
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	337 if (*p == sentinel) {
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	338 break;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	339 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	340
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	341 temp = *p;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	342 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	343
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	344 *p = node;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	345 node->parent = temp;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	346 node->left = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	347 node->right = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	348 ngx_rbt_red(node);
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	349 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	350
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	351
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	352 static ngx_rbtree_node_t *
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	353 ngx_http_limit_conn_lookup(ngx_rbtree_t rbtree, ngx_str_t key, uint32_t hash)
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	354 {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	355 ngx_int_t rc;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	356 ngx_rbtree_node_t node, sentinel;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	357 ngx_http_limit_conn_node_t *lcn;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	358
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	359 node = rbtree->root;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	360 sentinel = rbtree->sentinel;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	361
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	362 while (node != sentinel) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	363
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	364 if (hash < node->key) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	365 node = node->left;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	366 continue;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	367 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	368
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	369 if (hash > node->key) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	370 node = node->right;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	371 continue;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	372 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	373
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	374 /* hash == node->key */
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	375
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	376 lcn = (ngx_http_limit_conn_node_t *) &node->color;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	377
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	378 rc = ngx_memn2cmp(key->data, lcn->data, key->len, (size_t) lcn->len);
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	379
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	380 if (rc == 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	381 return node;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	382 }
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	383
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	384 node = (rc < 0) ? node->left : node->right;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	385 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	386
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	387 return NULL;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	388 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	389
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	390
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	391 static void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	392 ngx_http_limit_conn_cleanup(void *data)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	393 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	394 ngx_http_limit_conn_cleanup_t *lccln = data;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	395
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	396 ngx_rbtree_node_t *node;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	397 ngx_http_limit_conn_ctx_t *ctx;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	398 ngx_http_limit_conn_node_t *lc;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	399
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	400 ctx = lccln->shm_zone->data;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	401 node = lccln->node;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	402 lc = (ngx_http_limit_conn_node_t *) &node->color;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	403
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	404 ngx_shmtx_lock(&ctx->shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	405
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	406 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, lccln->shm_zone->shm.log, 0,
6480 f01ab2dbcfdc Fixed logging. Sergey Kandaurov <pluknet@nginx.com> parents: 5861 diff changeset	407 "limit conn cleanup: %08Xi %d", node->key, lc->conn);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	408
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	409 lc->conn--;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	410
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	411 if (lc->conn == 0) {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	412 ngx_rbtree_delete(&ctx->sh->rbtree, node);
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	413 ngx_slab_free_locked(ctx->shpool, node);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	414 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	415
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	416 ngx_shmtx_unlock(&ctx->shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	417 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	418
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	419
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	420 static ngx_inline void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	421 ngx_http_limit_conn_cleanup_all(ngx_pool_t *pool)
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	422 {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	423 ngx_pool_cleanup_t *cln;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	424
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	425 cln = pool->cleanup;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	426
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	427 while (cln && cln->handler == ngx_http_limit_conn_cleanup) {
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	428 ngx_http_limit_conn_cleanup(cln->data);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	429 cln = cln->next;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	430 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	431
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	432 pool->cleanup = cln;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	433 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	434
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	435
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	436 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	437 ngx_http_limit_conn_init_zone(ngx_shm_zone_t shm_zone, void data)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	438 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	439 ngx_http_limit_conn_ctx_t *octx = data;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	440
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	441 size_t len;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	442 ngx_http_limit_conn_ctx_t *ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	443
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	444 ctx = shm_zone->data;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	445
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	446 if (octx) {
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	447 if (ctx->key.value.len != octx->key.value.len
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	448 \|\| ngx_strncmp(ctx->key.value.data, octx->key.value.data,
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	449 ctx->key.value.len)
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	450 != 0)
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	451 {
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	452 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	453 "limit_conn_zone \"%V\" uses the \"%V\" key "
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	454 "while previously it used the \"%V\" key",
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	455 &shm_zone->shm.name, &ctx->key.value,
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	456 &octx->key.value);
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	457 return NGX_ERROR;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	458 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	459
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	460 ctx->sh = octx->sh;
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	461 ctx->shpool = octx->shpool;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	462
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	463 return NGX_OK;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	464 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	465
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	466 ctx->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	467
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	468 if (shm_zone->shm.exists) {
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	469 ctx->sh = ctx->shpool->data;
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	470
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	471 return NGX_OK;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	472 }
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	473
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	474 ctx->sh = ngx_slab_alloc(ctx->shpool, sizeof(ngx_http_limit_conn_shctx_t));
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	475 if (ctx->sh == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	476 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	477 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	478
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	479 ctx->shpool->data = ctx->sh;
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	480
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	481 ngx_rbtree_init(&ctx->sh->rbtree, &ctx->sh->sentinel,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	482 ngx_http_limit_conn_rbtree_insert_value);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	483
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	484 len = sizeof(" in limit_conn_zone \"\"") + shm_zone->shm.name.len;
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	485
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	486 ctx->shpool->log_ctx = ngx_slab_alloc(ctx->shpool, len);
b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	487 if (ctx->shpool->log_ctx == NULL) {
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	488 return NGX_ERROR;
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	489 }
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	490
7596 b45f052483b8 Limit conn: added shared context. Roman Arutyunyan <arut@nginx.com> parents: 7595 diff changeset	491 ngx_sprintf(ctx->shpool->log_ctx, " in limit_conn_zone \"%V\"%Z",
2716 d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2612 diff changeset	492 &shm_zone->shm.name);
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	493
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	494 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	495 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	496
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	497
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	498 static ngx_int_t
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	499 ngx_http_limit_conn_status_variable(ngx_http_request_t *r,
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	500 ngx_http_variable_value_t *v, uintptr_t data)
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	501 {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	502 if (r->main->limit_conn_status == 0) {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	503 v->not_found = 1;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	504 return NGX_OK;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	505 }
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	506
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	507 v->valid = 1;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	508 v->no_cacheable = 0;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	509 v->not_found = 0;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	510 v->len = ngx_http_limit_conn_status[r->main->limit_conn_status - 1].len;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	511 v->data = ngx_http_limit_conn_status[r->main->limit_conn_status - 1].data;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	512
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	513 return NGX_OK;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	514 }
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	515
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	516
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	517 static void *
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	518 ngx_http_limit_conn_create_conf(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	519 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	520 ngx_http_limit_conn_conf_t *conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	521
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	522 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_conn_conf_t));
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	523 if (conf == NULL) {
2912 c7d57b539248 return NULL instead of NGX_CONF_ERROR on a create conf failure Igor Sysoev <igor@sysoev.ru> parents: 2720 diff changeset	524 return NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	525 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	526
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	527 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	528 * set by ngx_pcalloc():
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	529 *
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	530 * conf->limits.elts = NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	531 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	532
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	533 conf->log_level = NGX_CONF_UNSET_UINT;
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	534 conf->status_code = NGX_CONF_UNSET_UINT;
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	535 conf->dry_run = NGX_CONF_UNSET;
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	536
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	537 return conf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	538 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	539
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	540
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	541 static char *
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	542 ngx_http_limit_conn_merge_conf(ngx_conf_t cf, void parent, void *child)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	543 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	544 ngx_http_limit_conn_conf_t *prev = parent;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	545 ngx_http_limit_conn_conf_t *conf = child;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	546
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	547 if (conf->limits.elts == NULL) {
4380 7697412a0921 Fixed limit_conn_log_level/limit_req_log_level inheritance. Valentin Bartenev <vbart@nginx.com> parents: 4280 diff changeset	548 conf->limits = prev->limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	549 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	550
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	551 ngx_conf_merge_uint_value(conf->log_level, prev->log_level, NGX_LOG_ERR);
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	552 ngx_conf_merge_uint_value(conf->status_code, prev->status_code,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	553 NGX_HTTP_SERVICE_UNAVAILABLE);
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	554
7594 359b0ea2b067 Limit conn: limit_conn_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 6480 diff changeset	555 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: 6480 diff changeset	556
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	557 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	558 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	559
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	560
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	561 static char *
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	562 ngx_http_limit_conn_zone(ngx_conf_t cf, ngx_command_t cmd, void *conf)
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	563 {
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	564 u_char *p;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	565 ssize_t size;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	566 ngx_str_t *value, name, s;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	567 ngx_uint_t i;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	568 ngx_shm_zone_t *shm_zone;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	569 ngx_http_limit_conn_ctx_t *ctx;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	570 ngx_http_compile_complex_value_t ccv;
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	571
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	572 value = cf->args->elts;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	573
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	574 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_conn_ctx_t));
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	575 if (ctx == NULL) {
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	576 return NGX_CONF_ERROR;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	577 }
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	578
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	579 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	580
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	581 ccv.cf = cf;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	582 ccv.value = &value[1];
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	583 ccv.complex_value = &ctx->key;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	584
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	585 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	586 return NGX_CONF_ERROR;
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	587 }
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	588
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	589 size = 0;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	590 name.len = 0;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	591
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	592 for (i = 2; i < cf->args->nelts; i++) {
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	593
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	594 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	595
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	596 name.data = value[i].data + 5;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	597
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	598 p = (u_char *) ngx_strchr(name.data, ':');
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	599
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	600 if (p == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	601 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	602 "invalid zone size \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	603 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	604 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	605
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	606 name.len = p - name.data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	607
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	608 s.data = p + 1;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	609 s.len = value[i].data + value[i].len - s.data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	610
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	611 size = ngx_parse_size(&s);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	612
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	613 if (size == NGX_ERROR) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	614 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	615 "invalid zone size \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	616 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	617 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	618
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	619 if (size < (ssize_t) (8 * ngx_pagesize)) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	620 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	621 "zone \"%V\" is too small", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	622 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	623 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	624
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	625 continue;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	626 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	627
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	628 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	629 "invalid parameter \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	630 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	631 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	632
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	633 if (name.len == 0) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	634 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	635 "\"%V\" must have \"zone\" parameter",
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	636 &cmd->name);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	637 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	638 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	639
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	640 shm_zone = ngx_shared_memory_add(cf, &name, size,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	641 &ngx_http_limit_conn_module);
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	642 if (shm_zone == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	643 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	644 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	645
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	646 if (shm_zone->data) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	647 ctx = shm_zone->data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	648
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	649 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
5860 c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	650 "%V \"%V\" is already bound to key \"%V\"",
c9787372f16d Limit conn: use complex value in limit_conn_zone (ticket #121). Valentin Bartenev <vbart@nginx.com> parents: 5859 diff changeset	651 &cmd->name, &name, &ctx->key.value);
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	652 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	653 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	654
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	655 shm_zone->init = ngx_http_limit_conn_init_zone;
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	656 shm_zone->data = ctx;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	657
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	658 return NGX_CONF_OK;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	659 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	660
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	661
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	662 static char *
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	663 ngx_http_limit_conn(ngx_conf_t cf, ngx_command_t cmd, void *conf)
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	664 {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	665 ngx_shm_zone_t *shm_zone;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	666 ngx_http_limit_conn_conf_t *lccf = conf;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	667 ngx_http_limit_conn_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	668
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	669 ngx_str_t *value;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	670 ngx_int_t n;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	671 ngx_uint_t i;
2372 7148efbdd798 test duplicate limit_conn Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	672
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	673 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	674
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	675 shm_zone = ngx_shared_memory_add(cf, &value[1], 0,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	676 &ngx_http_limit_conn_module);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	677 if (shm_zone == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	678 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	679 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	680
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	681 limits = lccf->limits.elts;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	682
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	683 if (limits == NULL) {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	684 if (ngx_array_init(&lccf->limits, cf->pool, 1,
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	685 sizeof(ngx_http_limit_conn_limit_t))
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	686 != NGX_OK)
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	687 {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	688 return NGX_CONF_ERROR;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	689 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	690 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	691
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	692 for (i = 0; i < lccf->limits.nelts; i++) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	693 if (shm_zone == limits[i].shm_zone) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	694 return "is duplicate";
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	695 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	696 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	697
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	698 n = ngx_atoi(value[2].data, value[2].len);
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	699 if (n <= 0) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	700 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	701 "invalid number of connections \"%V\"", &value[2]);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	702 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	703 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	704
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	705 if (n > 65535) {
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	706 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	707 "connection limit must be less 65536");
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	708 return NGX_CONF_ERROR;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	709 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	710
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	711 limit = ngx_array_push(&lccf->limits);
4811 21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	712 if (limit == NULL) {
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	713 return NGX_CONF_ERROR;
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	714 }
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	715
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	716 limit->conn = n;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	717 limit->shm_zone = shm_zone;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	718
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	719 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	720 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	721
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	722
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	723 static ngx_int_t
7595 9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	724 ngx_http_limit_conn_add_variables(ngx_conf_t *cf)
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	725 {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	726 ngx_http_variable_t var, v;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	727
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	728 for (v = ngx_http_limit_conn_vars; v->name.len; v++) {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	729 var = ngx_http_add_variable(cf, &v->name, v->flags);
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	730 if (var == NULL) {
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	731 return NGX_ERROR;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	732 }
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	733
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	734 var->get_handler = v->get_handler;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	735 var->data = v->data;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	736 }
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	737
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	738 return NGX_OK;
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	739 }
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	740
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	741
9606d93aa586 Limit conn: $limit_conn_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7594 diff changeset	742 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	743 ngx_http_limit_conn_init(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	744 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	745 ngx_http_handler_pt *h;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	746 ngx_http_core_main_conf_t *cmcf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	747
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	748 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	749
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	750 h = ngx_array_push(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	751 if (h == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	752 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	753 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	754
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	755 *h = ngx_http_limit_conn_handler;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	756
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	757 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	758 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_limit_conn_module.c @ 7746:88eca63261c3