Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.h @ 4668:ba2c7463ce18 stable-1.2
Merge of r4614, r4624-r4629, r4631: proxy recursive changes.
*) Added IPv6 and UNIX-domain socket support in "debug_connection"
directive.
*) New function ngx_http_get_forwarded_addr() to look up real client
address.
On input it takes an original address, string in the X-Forwarded-For format
and its length, list of trusted proxies, and a flag indicating to perform
the recursive search. On output it returns NGX_OK and the "deepest" valid
address in a chain, or NGX_DECLINED. It supports AF_INET and AF_INET6.
Additionally, original address and/or proxy may be specified as AF_UNIX.
*) Realip: chains of trusted proxies and IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "real_ip_recursive"
directive (closes #2). It also gets full IPv6 support (closes #44)
and canonical value of the $client_addr variable on address change.
Example:
real_ip_header X-Forwarded-For;
set_real_ip_from 127.0.0.0/8;
set_real_ip_from ::1;
set_real_ip_from unix:;
real_ip_recursive on;
*) Geo: chains of trusted proxies and partial IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "proxy_recursive"
directive in the "geo" block. It also gets partial IPv6 support:
now proxies may be specified with IPv6 addresses.
Example:
geo $test {
...
proxy 127.0.0.1;
proxy ::1;
proxy_recursive;
}
There's also a slight change in behavior. When original client
address (as specified by the "geo" directive) is one of the
trusted proxies, and the value of the X-Forwarded-For request
header cannot not be parsed as a valid address, an original client
address will be used for lookup. Previously, 255.255.255.255 was
used in this case.
*) Geoip: trusted proxies support and partial IPv6 support.
The module now supports recursive search of client address through the
chain of trusted proxies (closes #100), in the same scope as the geo
module. Proxies are listed by the "geoip_proxy" directive, recursive
search is enabled by the "geoip_proxy_recursive" directive. IPv6 is
partially supported: proxies may be specified with IPv6 addresses.
Example:
geoip_country .../GeoIP.dat;
geoip_proxy 127.0.0.1;
geoip_proxy ::1;
geoip_proxy 10.0.0.0/8;
geoip_proxy_recursive on;
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 04 Jun 2012 11:58:12 +0000 |
parents | 7bf3b68239a3 |
children | c9059bd5445b |
rev | line source |
---|---|
479 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
479 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
9 #define _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_event.h> | |
15 #include <ngx_event_connect.h> | |
16 #include <ngx_event_pipe.h> | |
17 #include <ngx_http.h> | |
18 | |
19 | |
665 | 20 #define NGX_HTTP_UPSTREAM_FT_ERROR 0x00000002 |
21 #define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x00000004 | |
22 #define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x00000008 | |
23 #define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x00000010 | |
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24 #define NGX_HTTP_UPSTREAM_FT_HTTP_502 0x00000020 |
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25 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000040 |
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26 #define NGX_HTTP_UPSTREAM_FT_HTTP_504 0x00000080 |
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27 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000100 |
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28 #define NGX_HTTP_UPSTREAM_FT_UPDATING 0x00000200 |
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29 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000400 |
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30 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00000800 |
1378 | 31 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 32 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 33 |
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34 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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35 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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36 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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37 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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38 |NGX_HTTP_UPSTREAM_FT_HTTP_404) |
479 | 39 |
40 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
41 | |
42 | |
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43 #define NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT 0x00000002 |
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44 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES 0x00000004 |
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45 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES 0x00000008 |
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46 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL 0x00000010 |
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47 #define NGX_HTTP_UPSTREAM_IGN_SET_COOKIE 0x00000020 |
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48 #define NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE 0x00000040 |
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49 #define NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING 0x00000080 |
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50 #define NGX_HTTP_UPSTREAM_IGN_XA_CHARSET 0x00000100 |
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51 |
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52 |
479 | 53 typedef struct { |
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54 ngx_msec_t bl_time; |
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55 ngx_uint_t bl_state; |
479 | 56 |
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57 ngx_uint_t status; |
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58 time_t response_sec; |
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59 ngx_uint_t response_msec; |
3795 | 60 off_t response_length; |
563 | 61 |
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62 ngx_str_t *peer; |
479 | 63 } ngx_http_upstream_state_t; |
64 | |
65 | |
66 typedef struct { | |
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67 ngx_hash_t headers_in_hash; |
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68 ngx_array_t upstreams; |
884 | 69 /* ngx_http_upstream_srv_conf_t */ |
509 | 70 } ngx_http_upstream_main_conf_t; |
71 | |
884 | 72 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
73 | |
74 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
75 ngx_http_upstream_srv_conf_t *us); | |
76 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
77 ngx_http_upstream_srv_conf_t *us); | |
78 | |
79 | |
80 typedef struct { | |
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81 ngx_http_upstream_init_pt init_upstream; |
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82 ngx_http_upstream_init_peer_pt init; |
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83 void *data; |
884 | 84 } ngx_http_upstream_peer_t; |
85 | |
509 | 86 |
87 typedef struct { | |
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88 ngx_addr_t *addrs; |
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89 ngx_uint_t naddrs; |
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90 ngx_uint_t weight; |
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91 ngx_uint_t max_fails; |
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92 time_t fail_timeout; |
884 | 93 |
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94 unsigned down:1; |
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95 unsigned backup:1; |
884 | 96 } ngx_http_upstream_server_t; |
97 | |
651 | 98 |
884 | 99 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
100 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
101 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
102 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
103 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
104 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
105 | |
651 | 106 |
884 | 107 struct ngx_http_upstream_srv_conf_s { |
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108 ngx_http_upstream_peer_t peer; |
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109 void **srv_conf; |
884 | 110 |
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111 ngx_array_t *servers; /* ngx_http_upstream_server_t */ |
884 | 112 |
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113 ngx_uint_t flags; |
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114 ngx_str_t host; |
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115 u_char *file_name; |
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116 ngx_uint_t line; |
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117 in_port_t port; |
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118 in_port_t default_port; |
884 | 119 }; |
651 | 120 |
121 | |
122 typedef struct { | |
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123 ngx_http_upstream_srv_conf_t *upstream; |
884 | 124 |
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125 ngx_msec_t connect_timeout; |
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126 ngx_msec_t send_timeout; |
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127 ngx_msec_t read_timeout; |
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128 ngx_msec_t timeout; |
479 | 129 |
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130 size_t send_lowat; |
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131 size_t buffer_size; |
529 | 132 |
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133 size_t busy_buffers_size; |
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134 size_t max_temp_file_size; |
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135 size_t temp_file_write_size; |
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136 |
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137 size_t busy_buffers_size_conf; |
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138 size_t max_temp_file_size_conf; |
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139 size_t temp_file_write_size_conf; |
509 | 140 |
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141 ngx_bufs_t bufs; |
529 | 142 |
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143 ngx_uint_t ignore_headers; |
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144 ngx_uint_t next_upstream; |
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145 ngx_uint_t store_access; |
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146 ngx_flag_t buffering; |
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147 ngx_flag_t pass_request_headers; |
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148 ngx_flag_t pass_request_body; |
479 | 149 |
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150 ngx_flag_t ignore_client_abort; |
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151 ngx_flag_t intercept_errors; |
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152 ngx_flag_t cyclic_temp_file; |
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153 |
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154 ngx_path_t *temp_path; |
479 | 155 |
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156 ngx_hash_t hide_headers_hash; |
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157 ngx_array_t *hide_headers; |
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158 ngx_array_t *pass_headers; |
509 | 159 |
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160 ngx_addr_t *local; |
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161 |
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162 #if (NGX_HTTP_CACHE) |
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163 ngx_shm_zone_t *cache; |
479 | 164 |
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165 ngx_uint_t cache_min_uses; |
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166 ngx_uint_t cache_use_stale; |
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167 ngx_uint_t cache_methods; |
479 | 168 |
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169 ngx_flag_t cache_lock; |
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170 ngx_msec_t cache_lock_timeout; |
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171 |
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172 ngx_array_t *cache_valid; |
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173 ngx_array_t *cache_bypass; |
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174 ngx_array_t *no_cache; |
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175 #endif |
509 | 176 |
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177 ngx_array_t *store_lengths; |
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178 ngx_array_t *store_values; |
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179 |
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180 signed store:2; |
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181 unsigned intercept_404:1; |
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182 unsigned change_buffering:1; |
581 | 183 |
577 | 184 #if (NGX_HTTP_SSL) |
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185 ngx_ssl_t *ssl; |
2754 | 186 ngx_flag_t ssl_session_reuse; |
577 | 187 #endif |
188 | |
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189 ngx_str_t module; |
479 | 190 } ngx_http_upstream_conf_t; |
191 | |
192 | |
509 | 193 typedef struct { |
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194 ngx_str_t name; |
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195 ngx_http_header_handler_pt handler; |
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196 ngx_uint_t offset; |
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197 ngx_http_header_handler_pt copy_handler; |
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198 ngx_uint_t conf; |
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199 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 200 } ngx_http_upstream_header_t; |
201 | |
202 | |
203 typedef struct { | |
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204 ngx_list_t headers; |
509 | 205 |
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206 ngx_uint_t status_n; |
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207 ngx_str_t status_line; |
529 | 208 |
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209 ngx_table_elt_t *status; |
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210 ngx_table_elt_t *date; |
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211 ngx_table_elt_t *server; |
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212 ngx_table_elt_t *connection; |
509 | 213 |
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214 ngx_table_elt_t *expires; |
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215 ngx_table_elt_t *etag; |
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216 ngx_table_elt_t *x_accel_expires; |
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217 ngx_table_elt_t *x_accel_redirect; |
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218 ngx_table_elt_t *x_accel_limit_rate; |
509 | 219 |
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220 ngx_table_elt_t *content_type; |
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221 ngx_table_elt_t *content_length; |
509 | 222 |
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223 ngx_table_elt_t *last_modified; |
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224 ngx_table_elt_t *location; |
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225 ngx_table_elt_t *accept_ranges; |
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226 ngx_table_elt_t *www_authenticate; |
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227 ngx_table_elt_t *transfer_encoding; |
509 | 228 |
229 #if (NGX_HTTP_GZIP) | |
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230 ngx_table_elt_t *content_encoding; |
509 | 231 #endif |
232 | |
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233 off_t content_length_n; |
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234 |
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235 ngx_array_t cache_control; |
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236 |
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237 unsigned connection_close:1; |
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238 unsigned chunked:1; |
509 | 239 } ngx_http_upstream_headers_in_t; |
240 | |
479 | 241 |
1658 | 242 typedef struct { |
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243 ngx_str_t host; |
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244 in_port_t port; |
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245 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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246 |
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247 ngx_uint_t naddrs; |
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248 in_addr_t *addrs; |
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249 |
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250 struct sockaddr *sockaddr; |
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251 socklen_t socklen; |
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252 |
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253 ngx_resolver_ctx_t *ctx; |
1658 | 254 } ngx_http_upstream_resolved_t; |
255 | |
256 | |
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257 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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258 ngx_http_upstream_t *u); |
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259 |
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260 |
479 | 261 struct ngx_http_upstream_s { |
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262 ngx_http_upstream_handler_pt read_event_handler; |
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263 ngx_http_upstream_handler_pt write_event_handler; |
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264 |
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265 ngx_peer_connection_t peer; |
479 | 266 |
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267 ngx_event_pipe_t *pipe; |
479 | 268 |
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269 ngx_chain_t *request_bufs; |
479 | 270 |
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271 ngx_output_chain_ctx_t output; |
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272 ngx_chain_writer_ctx_t writer; |
479 | 273 |
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274 ngx_http_upstream_conf_t *conf; |
479 | 275 |
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276 ngx_http_upstream_headers_in_t headers_in; |
509 | 277 |
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278 ngx_http_upstream_resolved_t *resolved; |
1658 | 279 |
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280 ngx_buf_t buffer; |
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281 off_t length; |
581 | 282 |
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283 ngx_chain_t *out_bufs; |
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284 ngx_chain_t *busy_bufs; |
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285 ngx_chain_t *free_bufs; |
581 | 286 |
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287 ngx_int_t (*input_filter_init)(void *data); |
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288 ngx_int_t (*input_filter)(void *data, ssize_t bytes); |
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289 void *input_filter_ctx; |
479 | 290 |
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291 #if (NGX_HTTP_CACHE) |
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292 ngx_int_t (*create_key)(ngx_http_request_t *r); |
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293 #endif |
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294 ngx_int_t (*create_request)(ngx_http_request_t *r); |
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295 ngx_int_t (*reinit_request)(ngx_http_request_t *r); |
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296 ngx_int_t (*process_header)(ngx_http_request_t *r); |
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297 void (*abort_request)(ngx_http_request_t *r); |
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298 void (*finalize_request)(ngx_http_request_t *r, |
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299 ngx_int_t rc); |
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300 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, |
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301 ngx_table_elt_t *h, size_t prefix); |
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302 ngx_int_t (*rewrite_cookie)(ngx_http_request_t *r, |
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303 ngx_table_elt_t *h); |
479 | 304 |
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305 ngx_msec_t timeout; |
527 | 306 |
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307 ngx_http_upstream_state_t *state; |
479 | 308 |
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309 ngx_str_t method; |
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310 ngx_str_t schema; |
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311 ngx_str_t uri; |
555 | 312 |
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313 ngx_http_cleanup_pt *cleanup; |
569 | 314 |
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315 unsigned store:1; |
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316 unsigned cacheable:1; |
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317 unsigned accel:1; |
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318 unsigned ssl:1; |
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319 #if (NGX_HTTP_CACHE) |
2952 | 320 unsigned cache_status:3; |
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321 #endif |
479 | 322 |
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323 unsigned buffering:1; |
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324 unsigned keepalive:1; |
649 | 325 |
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326 unsigned request_sent:1; |
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327 unsigned header_sent:1; |
479 | 328 }; |
329 | |
330 | |
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331 typedef struct { |
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332 ngx_uint_t status; |
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333 ngx_uint_t mask; |
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334 } ngx_http_upstream_next_t; |
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335 |
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336 |
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337 typedef struct { |
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338 ngx_str_t key; |
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339 ngx_str_t value; |
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340 ngx_uint_t skip_empty; |
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341 } ngx_http_upstream_param_t; |
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342 |
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343 |
1162 | 344 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
345 ngx_http_variable_value_t *v, uintptr_t data); | |
346 | |
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347 ngx_int_t ngx_http_upstream_create(ngx_http_request_t *r); |
479 | 348 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 349 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 350 ngx_url_t *u, ngx_uint_t flags); |
3399 | 351 char *ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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352 void *conf); |
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353 char *ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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354 void *conf); |
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355 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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356 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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357 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 358 |
359 | |
360 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
361 uscf->srv_conf[module.ctx_index] | |
509 | 362 |
479 | 363 |
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364 extern ngx_module_t ngx_http_upstream_module; |
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365 extern ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[]; |
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366 extern ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[]; |
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367 |
479 | 368 |
369 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |