Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.h @ 4160:88369902edb1 stable-1.0
Merging r4010, r4065:
SSL related fixes:
*) Fixing proxy_set_body and proxy_pass_request_body with SSL.
Flush flag wasn't set in constructed buffer and this prevented any data
from being actually sent to upstream due to SSL buffering. Make sure
we always set flush in the last buffer we are going to sent.
See here for report:
http://nginx.org/pipermail/nginx-ru/2011-June/041552.html
*) Proper SSL shutdown handling.
If connection has unsent alerts, SSL_shutdown() tries to send them even
if SSL_set_shutdown(SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN) was used.
This can be prevented by SSL_set_quiet_shutdown(). SSL_set_shutdown()
is required nevertheless to preserve session.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 30 Sep 2011 13:42:59 +0000 |
parents | 2d062c031fff |
children | dbddec65fdab f83b47591642 |
rev | line source |
---|---|
479 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
8 #define _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
9 | |
10 | |
11 #include <ngx_config.h> | |
12 #include <ngx_core.h> | |
13 #include <ngx_event.h> | |
14 #include <ngx_event_connect.h> | |
15 #include <ngx_event_pipe.h> | |
16 #include <ngx_http.h> | |
17 | |
18 | |
665 | 19 #define NGX_HTTP_UPSTREAM_FT_ERROR 0x00000002 |
20 #define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x00000004 | |
21 #define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x00000008 | |
22 #define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x00000010 | |
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23 #define NGX_HTTP_UPSTREAM_FT_HTTP_502 0x00000020 |
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24 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000040 |
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25 #define NGX_HTTP_UPSTREAM_FT_HTTP_504 0x00000080 |
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26 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000100 |
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27 #define NGX_HTTP_UPSTREAM_FT_UPDATING 0x00000200 |
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28 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000400 |
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29 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00000800 |
1378 | 30 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 31 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 32 |
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33 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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34 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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35 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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36 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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37 |NGX_HTTP_UPSTREAM_FT_HTTP_404) |
479 | 38 |
39 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
40 | |
41 | |
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42 #define NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT 0x00000002 |
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43 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES 0x00000004 |
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44 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES 0x00000008 |
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45 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL 0x00000010 |
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46 #define NGX_HTTP_UPSTREAM_IGN_SET_COOKIE 0x00000020 |
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47 |
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48 |
479 | 49 typedef struct { |
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50 ngx_msec_t bl_time; |
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51 ngx_uint_t bl_state; |
479 | 52 |
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53 ngx_uint_t status; |
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54 time_t response_sec; |
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55 ngx_uint_t response_msec; |
3795 | 56 off_t response_length; |
563 | 57 |
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58 ngx_str_t *peer; |
479 | 59 } ngx_http_upstream_state_t; |
60 | |
61 | |
62 typedef struct { | |
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63 ngx_hash_t headers_in_hash; |
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64 ngx_array_t upstreams; |
884 | 65 /* ngx_http_upstream_srv_conf_t */ |
509 | 66 } ngx_http_upstream_main_conf_t; |
67 | |
884 | 68 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
69 | |
70 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
71 ngx_http_upstream_srv_conf_t *us); | |
72 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
73 ngx_http_upstream_srv_conf_t *us); | |
74 | |
75 | |
76 typedef struct { | |
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77 ngx_http_upstream_init_pt init_upstream; |
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78 ngx_http_upstream_init_peer_pt init; |
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79 void *data; |
884 | 80 } ngx_http_upstream_peer_t; |
81 | |
509 | 82 |
83 typedef struct { | |
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84 ngx_addr_t *addrs; |
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85 ngx_uint_t naddrs; |
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86 ngx_uint_t weight; |
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87 ngx_uint_t max_fails; |
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88 time_t fail_timeout; |
884 | 89 |
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90 unsigned down:1; |
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91 unsigned backup:1; |
884 | 92 } ngx_http_upstream_server_t; |
93 | |
651 | 94 |
884 | 95 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
96 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
97 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
98 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
99 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
100 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
101 | |
651 | 102 |
884 | 103 struct ngx_http_upstream_srv_conf_s { |
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104 ngx_http_upstream_peer_t peer; |
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105 void **srv_conf; |
884 | 106 |
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107 ngx_array_t *servers; /* ngx_http_upstream_server_t */ |
884 | 108 |
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109 ngx_uint_t flags; |
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110 ngx_str_t host; |
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111 u_char *file_name; |
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112 ngx_uint_t line; |
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113 in_port_t port; |
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114 in_port_t default_port; |
884 | 115 }; |
651 | 116 |
117 | |
118 typedef struct { | |
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119 ngx_http_upstream_srv_conf_t *upstream; |
884 | 120 |
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121 ngx_msec_t connect_timeout; |
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122 ngx_msec_t send_timeout; |
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123 ngx_msec_t read_timeout; |
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124 ngx_msec_t timeout; |
479 | 125 |
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126 size_t send_lowat; |
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127 size_t buffer_size; |
529 | 128 |
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129 size_t busy_buffers_size; |
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130 size_t max_temp_file_size; |
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131 size_t temp_file_write_size; |
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132 |
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133 size_t busy_buffers_size_conf; |
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134 size_t max_temp_file_size_conf; |
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135 size_t temp_file_write_size_conf; |
509 | 136 |
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137 ngx_bufs_t bufs; |
529 | 138 |
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139 ngx_uint_t ignore_headers; |
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140 ngx_uint_t next_upstream; |
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141 ngx_uint_t store_access; |
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142 ngx_flag_t buffering; |
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143 ngx_flag_t pass_request_headers; |
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144 ngx_flag_t pass_request_body; |
479 | 145 |
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146 ngx_flag_t ignore_client_abort; |
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147 ngx_flag_t intercept_errors; |
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148 ngx_flag_t cyclic_temp_file; |
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149 |
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150 ngx_path_t *temp_path; |
479 | 151 |
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152 ngx_hash_t hide_headers_hash; |
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153 ngx_array_t *hide_headers; |
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154 ngx_array_t *pass_headers; |
509 | 155 |
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156 ngx_addr_t *local; |
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157 |
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158 #if (NGX_HTTP_CACHE) |
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159 ngx_shm_zone_t *cache; |
479 | 160 |
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161 ngx_uint_t cache_min_uses; |
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162 ngx_uint_t cache_use_stale; |
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163 ngx_uint_t cache_methods; |
479 | 164 |
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165 ngx_array_t *cache_valid; |
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166 ngx_array_t *cache_bypass; |
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167 ngx_array_t *no_cache; |
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168 #endif |
509 | 169 |
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170 ngx_array_t *store_lengths; |
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171 ngx_array_t *store_values; |
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172 |
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173 signed store:2; |
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174 unsigned intercept_404:1; |
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175 unsigned change_buffering:1; |
581 | 176 |
577 | 177 #if (NGX_HTTP_SSL) |
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178 ngx_ssl_t *ssl; |
2754 | 179 ngx_flag_t ssl_session_reuse; |
577 | 180 #endif |
181 | |
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182 ngx_str_t module; |
479 | 183 } ngx_http_upstream_conf_t; |
184 | |
185 | |
509 | 186 typedef struct { |
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187 ngx_str_t name; |
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188 ngx_http_header_handler_pt handler; |
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189 ngx_uint_t offset; |
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190 ngx_http_header_handler_pt copy_handler; |
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191 ngx_uint_t conf; |
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192 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 193 } ngx_http_upstream_header_t; |
194 | |
195 | |
196 typedef struct { | |
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197 ngx_list_t headers; |
509 | 198 |
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199 ngx_uint_t status_n; |
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200 ngx_str_t status_line; |
529 | 201 |
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202 ngx_table_elt_t *status; |
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203 ngx_table_elt_t *date; |
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204 ngx_table_elt_t *server; |
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205 ngx_table_elt_t *connection; |
509 | 206 |
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207 ngx_table_elt_t *expires; |
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208 ngx_table_elt_t *etag; |
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209 ngx_table_elt_t *x_accel_expires; |
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210 ngx_table_elt_t *x_accel_redirect; |
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211 ngx_table_elt_t *x_accel_limit_rate; |
509 | 212 |
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213 ngx_table_elt_t *content_type; |
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214 ngx_table_elt_t *content_length; |
509 | 215 |
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216 ngx_table_elt_t *last_modified; |
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217 ngx_table_elt_t *location; |
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218 ngx_table_elt_t *accept_ranges; |
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219 ngx_table_elt_t *www_authenticate; |
509 | 220 |
221 #if (NGX_HTTP_GZIP) | |
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222 ngx_table_elt_t *content_encoding; |
509 | 223 #endif |
224 | |
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225 off_t content_length_n; |
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226 |
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227 ngx_array_t cache_control; |
509 | 228 } ngx_http_upstream_headers_in_t; |
229 | |
479 | 230 |
1658 | 231 typedef struct { |
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232 ngx_str_t host; |
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233 in_port_t port; |
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234 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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235 |
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236 ngx_uint_t naddrs; |
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237 in_addr_t *addrs; |
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238 |
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239 struct sockaddr *sockaddr; |
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240 socklen_t socklen; |
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241 |
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242 ngx_resolver_ctx_t *ctx; |
1658 | 243 } ngx_http_upstream_resolved_t; |
244 | |
245 | |
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246 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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247 ngx_http_upstream_t *u); |
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248 |
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249 |
479 | 250 struct ngx_http_upstream_s { |
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251 ngx_http_upstream_handler_pt read_event_handler; |
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252 ngx_http_upstream_handler_pt write_event_handler; |
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253 |
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254 ngx_peer_connection_t peer; |
479 | 255 |
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256 ngx_event_pipe_t *pipe; |
479 | 257 |
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258 ngx_chain_t *request_bufs; |
479 | 259 |
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260 ngx_output_chain_ctx_t output; |
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261 ngx_chain_writer_ctx_t writer; |
479 | 262 |
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263 ngx_http_upstream_conf_t *conf; |
479 | 264 |
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265 ngx_http_upstream_headers_in_t headers_in; |
509 | 266 |
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267 ngx_http_upstream_resolved_t *resolved; |
1658 | 268 |
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269 ngx_buf_t buffer; |
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270 size_t length; |
581 | 271 |
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272 ngx_chain_t *out_bufs; |
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273 ngx_chain_t *busy_bufs; |
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274 ngx_chain_t *free_bufs; |
581 | 275 |
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276 ngx_int_t (*input_filter_init)(void *data); |
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277 ngx_int_t (*input_filter)(void *data, ssize_t bytes); |
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278 void *input_filter_ctx; |
479 | 279 |
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280 #if (NGX_HTTP_CACHE) |
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281 ngx_int_t (*create_key)(ngx_http_request_t *r); |
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282 #endif |
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283 ngx_int_t (*create_request)(ngx_http_request_t *r); |
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284 ngx_int_t (*reinit_request)(ngx_http_request_t *r); |
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285 ngx_int_t (*process_header)(ngx_http_request_t *r); |
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286 void (*abort_request)(ngx_http_request_t *r); |
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287 void (*finalize_request)(ngx_http_request_t *r, |
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288 ngx_int_t rc); |
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289 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, |
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290 ngx_table_elt_t *h, size_t prefix); |
479 | 291 |
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292 ngx_msec_t timeout; |
527 | 293 |
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294 ngx_http_upstream_state_t *state; |
479 | 295 |
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296 ngx_str_t method; |
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297 ngx_str_t schema; |
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298 ngx_str_t uri; |
555 | 299 |
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300 ngx_http_cleanup_pt *cleanup; |
569 | 301 |
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302 unsigned store:1; |
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303 unsigned cacheable:1; |
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304 unsigned accel:1; |
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305 unsigned ssl:1; |
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306 #if (NGX_HTTP_CACHE) |
2952 | 307 unsigned cache_status:3; |
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308 #endif |
479 | 309 |
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310 unsigned buffering:1; |
649 | 311 |
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312 unsigned request_sent:1; |
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313 unsigned header_sent:1; |
479 | 314 }; |
315 | |
316 | |
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317 typedef struct { |
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318 ngx_uint_t status; |
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319 ngx_uint_t mask; |
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320 } ngx_http_upstream_next_t; |
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321 |
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322 |
1162 | 323 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
324 ngx_http_variable_value_t *v, uintptr_t data); | |
325 | |
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326 ngx_int_t ngx_http_upstream_create(ngx_http_request_t *r); |
479 | 327 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 328 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 329 ngx_url_t *u, ngx_uint_t flags); |
3399 | 330 char *ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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331 void *conf); |
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332 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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333 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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334 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 335 |
336 | |
337 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
338 uscf->srv_conf[module.ctx_index] | |
509 | 339 |
479 | 340 |
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341 extern ngx_module_t ngx_http_upstream_module; |
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342 extern ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[]; |
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use shared ngx_http_upstream_ignore_headers_masks[]
Igor Sysoev <igor@sysoev.ru>
parents:
3526
diff
changeset
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343 extern ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[]; |
2875
6e1941b321b7
proxy_cache_methods and fastcgi_cache_methods
Igor Sysoev <igor@sysoev.ru>
parents:
2786
diff
changeset
|
344 |
479 | 345 |
346 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |