Mercurial > hg > nginx-quic
annotate src/stream/ngx_stream.h @ 8125:3cbc2602325f release-1.19.3
nginx-1.19.3-RELEASE
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 29 Sep 2020 17:32:10 +0300 |
parents | 9606d93aa586 |
children | 893b3313f53c 2ab7b55ae4a0 |
rev | line source |
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6115 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #ifndef _NGX_STREAM_H_INCLUDED_ | |
9 #define _NGX_STREAM_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 #if (NGX_STREAM_SSL) | |
16 #include <ngx_stream_ssl_module.h> | |
17 #endif | |
18 | |
19 | |
20 typedef struct ngx_stream_session_s ngx_stream_session_t; | |
21 | |
22 | |
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23 #include <ngx_stream_variables.h> |
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24 #include <ngx_stream_script.h> |
6115 | 25 #include <ngx_stream_upstream.h> |
26 #include <ngx_stream_upstream_round_robin.h> | |
27 | |
28 | |
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29 #define NGX_STREAM_OK 200 |
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30 #define NGX_STREAM_BAD_REQUEST 400 |
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31 #define NGX_STREAM_FORBIDDEN 403 |
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32 #define NGX_STREAM_INTERNAL_SERVER_ERROR 500 |
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33 #define NGX_STREAM_BAD_GATEWAY 502 |
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34 #define NGX_STREAM_SERVICE_UNAVAILABLE 503 |
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35 |
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36 |
6115 | 37 typedef struct { |
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38 void **main_conf; |
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39 void **srv_conf; |
6115 | 40 } ngx_stream_conf_ctx_t; |
41 | |
42 | |
43 typedef struct { | |
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44 struct sockaddr *sockaddr; |
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45 socklen_t socklen; |
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46 ngx_str_t addr_text; |
6115 | 47 |
48 /* server ctx */ | |
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49 ngx_stream_conf_ctx_t *ctx; |
6115 | 50 |
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51 unsigned bind:1; |
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52 unsigned wildcard:1; |
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53 unsigned ssl:1; |
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54 #if (NGX_HAVE_INET6) |
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55 unsigned ipv6only:1; |
6115 | 56 #endif |
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57 unsigned reuseport:1; |
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58 unsigned so_keepalive:2; |
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59 unsigned proxy_protocol:1; |
6115 | 60 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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61 int tcp_keepidle; |
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62 int tcp_keepintvl; |
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63 int tcp_keepcnt; |
6115 | 64 #endif |
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65 int backlog; |
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66 int rcvbuf; |
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67 int sndbuf; |
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68 int type; |
6115 | 69 } ngx_stream_listen_t; |
70 | |
71 | |
72 typedef struct { | |
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73 ngx_stream_conf_ctx_t *ctx; |
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74 ngx_str_t addr_text; |
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75 unsigned ssl:1; |
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76 unsigned proxy_protocol:1; |
6115 | 77 } ngx_stream_addr_conf_t; |
78 | |
79 typedef struct { | |
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80 in_addr_t addr; |
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81 ngx_stream_addr_conf_t conf; |
6115 | 82 } ngx_stream_in_addr_t; |
83 | |
84 | |
85 #if (NGX_HAVE_INET6) | |
86 | |
87 typedef struct { | |
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88 struct in6_addr addr6; |
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89 ngx_stream_addr_conf_t conf; |
6115 | 90 } ngx_stream_in6_addr_t; |
91 | |
92 #endif | |
93 | |
94 | |
95 typedef struct { | |
96 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */ | |
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97 void *addrs; |
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98 ngx_uint_t naddrs; |
6115 | 99 } ngx_stream_port_t; |
100 | |
101 | |
102 typedef struct { | |
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103 int family; |
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104 int type; |
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105 in_port_t port; |
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106 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */ |
6115 | 107 } ngx_stream_conf_port_t; |
108 | |
109 | |
110 typedef struct { | |
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111 ngx_stream_listen_t opt; |
6115 | 112 } ngx_stream_conf_addr_t; |
113 | |
114 | |
6693 | 115 typedef enum { |
116 NGX_STREAM_POST_ACCEPT_PHASE = 0, | |
117 NGX_STREAM_PREACCESS_PHASE, | |
118 NGX_STREAM_ACCESS_PHASE, | |
119 NGX_STREAM_SSL_PHASE, | |
6694 | 120 NGX_STREAM_PREREAD_PHASE, |
6693 | 121 NGX_STREAM_CONTENT_PHASE, |
122 NGX_STREAM_LOG_PHASE | |
123 } ngx_stream_phases; | |
124 | |
125 | |
126 typedef struct ngx_stream_phase_handler_s ngx_stream_phase_handler_t; | |
127 | |
128 typedef ngx_int_t (*ngx_stream_phase_handler_pt)(ngx_stream_session_t *s, | |
129 ngx_stream_phase_handler_t *ph); | |
130 typedef ngx_int_t (*ngx_stream_handler_pt)(ngx_stream_session_t *s); | |
131 typedef void (*ngx_stream_content_handler_pt)(ngx_stream_session_t *s); | |
132 | |
133 | |
134 struct ngx_stream_phase_handler_s { | |
135 ngx_stream_phase_handler_pt checker; | |
136 ngx_stream_handler_pt handler; | |
137 ngx_uint_t next; | |
138 }; | |
139 | |
140 | |
141 typedef struct { | |
142 ngx_stream_phase_handler_t *handlers; | |
143 } ngx_stream_phase_engine_t; | |
144 | |
145 | |
146 typedef struct { | |
147 ngx_array_t handlers; | |
148 } ngx_stream_phase_t; | |
6175 | 149 |
150 | |
6115 | 151 typedef struct { |
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152 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */ |
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153 ngx_array_t listen; /* ngx_stream_listen_t */ |
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154 |
6693 | 155 ngx_stream_phase_engine_t phase_engine; |
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156 |
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157 ngx_hash_t variables_hash; |
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158 |
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159 ngx_array_t variables; /* ngx_stream_variable_t */ |
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160 ngx_array_t prefix_variables; /* ngx_stream_variable_t */ |
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161 ngx_uint_t ncaptures; |
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162 |
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163 ngx_uint_t variables_hash_max_size; |
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164 ngx_uint_t variables_hash_bucket_size; |
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165 |
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166 ngx_hash_keys_arrays_t *variables_keys; |
6693 | 167 |
168 ngx_stream_phase_t phases[NGX_STREAM_LOG_PHASE + 1]; | |
6115 | 169 } ngx_stream_core_main_conf_t; |
170 | |
171 | |
172 typedef struct { | |
6693 | 173 ngx_stream_content_handler_pt handler; |
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174 |
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175 ngx_stream_conf_ctx_t *ctx; |
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176 |
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177 u_char *file_name; |
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178 ngx_uint_t line; |
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179 |
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180 ngx_flag_t tcp_nodelay; |
6694 | 181 size_t preread_buffer_size; |
182 ngx_msec_t preread_timeout; | |
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183 |
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184 ngx_log_t *error_log; |
6618 | 185 |
186 ngx_msec_t resolver_timeout; | |
187 ngx_resolver_t *resolver; | |
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188 |
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189 ngx_msec_t proxy_protocol_timeout; |
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190 |
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191 ngx_uint_t listen; /* unsigned listen:1; */ |
6115 | 192 } ngx_stream_core_srv_conf_t; |
193 | |
194 | |
195 struct ngx_stream_session_s { | |
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196 uint32_t signature; /* "STRM" */ |
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197 |
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198 ngx_connection_t *connection; |
6115 | 199 |
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200 off_t received; |
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201 time_t start_sec; |
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202 ngx_msec_t start_msec; |
6115 | 203 |
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204 ngx_log_handler_pt log_handler; |
6115 | 205 |
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206 void **ctx; |
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207 void **main_conf; |
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208 void **srv_conf; |
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209 |
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210 ngx_stream_upstream_t *upstream; |
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211 ngx_array_t *upstream_states; |
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212 /* of ngx_stream_upstream_state_t */ |
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213 ngx_stream_variable_value_t *variables; |
6115 | 214 |
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215 #if (NGX_PCRE) |
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216 ngx_uint_t ncaptures; |
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217 int *captures; |
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218 u_char *captures_data; |
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219 #endif |
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220 |
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222 ngx_uint_t status; |
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223 |
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224 unsigned ssl:1; |
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225 |
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226 unsigned stat_processing:1; |
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227 |
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228 unsigned health_check:1; |
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229 |
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230 unsigned limit_conn_status:2; |
6115 | 231 }; |
232 | |
233 | |
234 typedef struct { | |
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235 ngx_int_t (*preconfiguration)(ngx_conf_t *cf); |
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236 ngx_int_t (*postconfiguration)(ngx_conf_t *cf); |
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237 |
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238 void *(*create_main_conf)(ngx_conf_t *cf); |
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239 char *(*init_main_conf)(ngx_conf_t *cf, void *conf); |
6115 | 240 |
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241 void *(*create_srv_conf)(ngx_conf_t *cf); |
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242 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, |
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243 void *conf); |
6115 | 244 } ngx_stream_module_t; |
245 | |
246 | |
247 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */ | |
248 | |
249 #define NGX_STREAM_MAIN_CONF 0x02000000 | |
250 #define NGX_STREAM_SRV_CONF 0x04000000 | |
251 #define NGX_STREAM_UPS_CONF 0x08000000 | |
252 | |
253 | |
254 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf) | |
255 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf) | |
256 | |
257 | |
258 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index] | |
259 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c; | |
260 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL; | |
261 | |
262 | |
263 #define ngx_stream_get_module_main_conf(s, module) \ | |
264 (s)->main_conf[module.ctx_index] | |
265 #define ngx_stream_get_module_srv_conf(s, module) \ | |
266 (s)->srv_conf[module.ctx_index] | |
267 | |
268 #define ngx_stream_conf_get_module_main_conf(cf, module) \ | |
269 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] | |
270 #define ngx_stream_conf_get_module_srv_conf(cf, module) \ | |
271 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] | |
272 | |
273 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \ | |
274 (cycle->conf_ctx[ngx_stream_module.index] ? \ | |
275 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \ | |
276 ->main_conf[module.ctx_index]: \ | |
277 NULL) | |
278 | |
279 | |
6692 | 280 #define NGX_STREAM_WRITE_BUFFERED 0x10 |
281 | |
282 | |
6693 | 283 void ngx_stream_core_run_phases(ngx_stream_session_t *s); |
284 ngx_int_t ngx_stream_core_generic_phase(ngx_stream_session_t *s, | |
285 ngx_stream_phase_handler_t *ph); | |
6694 | 286 ngx_int_t ngx_stream_core_preread_phase(ngx_stream_session_t *s, |
287 ngx_stream_phase_handler_t *ph); | |
6693 | 288 ngx_int_t ngx_stream_core_content_phase(ngx_stream_session_t *s, |
289 ngx_stream_phase_handler_t *ph); | |
290 | |
291 | |
6115 | 292 void ngx_stream_init_connection(ngx_connection_t *c); |
6693 | 293 void ngx_stream_session_handler(ngx_event_t *rev); |
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294 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc); |
6115 | 295 |
296 | |
297 extern ngx_module_t ngx_stream_module; | |
298 extern ngx_uint_t ngx_stream_max_module; | |
299 extern ngx_module_t ngx_stream_core_module; | |
300 | |
301 | |
6692 | 302 typedef ngx_int_t (*ngx_stream_filter_pt)(ngx_stream_session_t *s, |
303 ngx_chain_t *chain, ngx_uint_t from_upstream); | |
304 | |
305 | |
306 extern ngx_stream_filter_pt ngx_stream_top_filter; | |
307 | |
308 | |
6115 | 309 #endif /* _NGX_STREAM_H_INCLUDED_ */ |