Mercurial > hg > nginx
annotate src/stream/ngx_stream.c @ 6606:2f41d383c9c7
Stream: added preconfiguration step.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Wed, 15 Jun 2016 15:10:24 +0300 |
parents | b3b7e33083ac |
children | c70b7f4537e1 |
rev | line source |
---|---|
6115 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_event.h> | |
11 #include <ngx_stream.h> | |
12 | |
13 | |
14 static char *ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
15 static ngx_int_t ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports, | |
16 ngx_stream_listen_t *listen); | |
17 static char *ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports); | |
18 static ngx_int_t ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
19 ngx_stream_conf_addr_t *addr); | |
20 #if (NGX_HAVE_INET6) | |
21 static ngx_int_t ngx_stream_add_addrs6(ngx_conf_t *cf, | |
22 ngx_stream_port_t *stport, ngx_stream_conf_addr_t *addr); | |
23 #endif | |
24 static ngx_int_t ngx_stream_cmp_conf_addrs(const void *one, const void *two); | |
25 | |
26 | |
27 ngx_uint_t ngx_stream_max_module; | |
28 | |
29 | |
30 static ngx_command_t ngx_stream_commands[] = { | |
31 | |
32 { ngx_string("stream"), | |
33 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
34 ngx_stream_block, | |
35 0, | |
36 0, | |
37 NULL }, | |
38 | |
39 ngx_null_command | |
40 }; | |
41 | |
42 | |
43 static ngx_core_module_t ngx_stream_module_ctx = { | |
44 ngx_string("stream"), | |
45 NULL, | |
46 NULL | |
47 }; | |
48 | |
49 | |
50 ngx_module_t ngx_stream_module = { | |
51 NGX_MODULE_V1, | |
52 &ngx_stream_module_ctx, /* module context */ | |
53 ngx_stream_commands, /* module directives */ | |
54 NGX_CORE_MODULE, /* module type */ | |
55 NULL, /* init master */ | |
56 NULL, /* init module */ | |
57 NULL, /* init process */ | |
58 NULL, /* init thread */ | |
59 NULL, /* exit thread */ | |
60 NULL, /* exit process */ | |
61 NULL, /* exit master */ | |
62 NGX_MODULE_V1_PADDING | |
63 }; | |
64 | |
65 | |
66 static char * | |
67 ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
68 { | |
69 char *rv; | |
70 ngx_uint_t i, m, mi, s; | |
71 ngx_conf_t pcf; | |
72 ngx_array_t ports; | |
73 ngx_stream_listen_t *listen; | |
74 ngx_stream_module_t *module; | |
75 ngx_stream_conf_ctx_t *ctx; | |
76 ngx_stream_core_srv_conf_t **cscfp; | |
77 ngx_stream_core_main_conf_t *cmcf; | |
78 | |
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Disabled duplicate http, mail, and stream blocks.
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79 if (*(ngx_stream_conf_ctx_t **) conf) { |
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80 return "is duplicate"; |
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81 } |
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82 |
6115 | 83 /* the main stream context */ |
84 | |
85 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); | |
86 if (ctx == NULL) { | |
87 return NGX_CONF_ERROR; | |
88 } | |
89 | |
90 *(ngx_stream_conf_ctx_t **) conf = ctx; | |
91 | |
92 /* count the number of the stream modules and set up their indices */ | |
93 | |
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94 ngx_stream_max_module = ngx_count_modules(cf->cycle, NGX_STREAM_MODULE); |
6115 | 95 |
96 | |
97 /* the stream main_conf context, it's the same in the all stream contexts */ | |
98 | |
99 ctx->main_conf = ngx_pcalloc(cf->pool, | |
100 sizeof(void *) * ngx_stream_max_module); | |
101 if (ctx->main_conf == NULL) { | |
102 return NGX_CONF_ERROR; | |
103 } | |
104 | |
105 | |
106 /* | |
107 * the stream null srv_conf context, it is used to merge | |
108 * the server{}s' srv_conf's | |
109 */ | |
110 | |
111 ctx->srv_conf = ngx_pcalloc(cf->pool, | |
112 sizeof(void *) * ngx_stream_max_module); | |
113 if (ctx->srv_conf == NULL) { | |
114 return NGX_CONF_ERROR; | |
115 } | |
116 | |
117 | |
118 /* | |
119 * create the main_conf's and the null srv_conf's of the all stream modules | |
120 */ | |
121 | |
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122 for (m = 0; cf->cycle->modules[m]; m++) { |
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123 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
6115 | 124 continue; |
125 } | |
126 | |
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127 module = cf->cycle->modules[m]->ctx; |
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128 mi = cf->cycle->modules[m]->ctx_index; |
6115 | 129 |
130 if (module->create_main_conf) { | |
131 ctx->main_conf[mi] = module->create_main_conf(cf); | |
132 if (ctx->main_conf[mi] == NULL) { | |
133 return NGX_CONF_ERROR; | |
134 } | |
135 } | |
136 | |
137 if (module->create_srv_conf) { | |
138 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
139 if (ctx->srv_conf[mi] == NULL) { | |
140 return NGX_CONF_ERROR; | |
141 } | |
142 } | |
143 } | |
144 | |
145 | |
146 pcf = *cf; | |
147 cf->ctx = ctx; | |
148 | |
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149 for (m = 0; cf->cycle->modules[m]; m++) { |
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150 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
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151 continue; |
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152 } |
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153 |
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154 module = cf->cycle->modules[m]->ctx; |
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155 |
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156 if (module->preconfiguration) { |
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157 if (module->preconfiguration(cf) != NGX_OK) { |
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158 return NGX_CONF_ERROR; |
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159 } |
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160 } |
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161 } |
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162 |
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163 |
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164 /* parse inside the stream{} block */ |
2f41d383c9c7
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parents:
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165 |
6115 | 166 cf->module_type = NGX_STREAM_MODULE; |
167 cf->cmd_type = NGX_STREAM_MAIN_CONF; | |
168 rv = ngx_conf_parse(cf, NULL); | |
169 | |
170 if (rv != NGX_CONF_OK) { | |
171 *cf = pcf; | |
172 return rv; | |
173 } | |
174 | |
175 | |
176 /* init stream{} main_conf's, merge the server{}s' srv_conf's */ | |
177 | |
178 cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index]; | |
179 cscfp = cmcf->servers.elts; | |
180 | |
6379
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Dynamic modules: changed ngx_modules to cycle->modules.
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parents:
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181 for (m = 0; cf->cycle->modules[m]; m++) { |
cf5e822cf470
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parents:
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182 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
6115 | 183 continue; |
184 } | |
185 | |
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parents:
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186 module = cf->cycle->modules[m]->ctx; |
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parents:
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187 mi = cf->cycle->modules[m]->ctx_index; |
6115 | 188 |
189 /* init stream{} main_conf's */ | |
190 | |
191 cf->ctx = ctx; | |
192 | |
193 if (module->init_main_conf) { | |
194 rv = module->init_main_conf(cf, ctx->main_conf[mi]); | |
195 if (rv != NGX_CONF_OK) { | |
196 *cf = pcf; | |
197 return rv; | |
198 } | |
199 } | |
200 | |
201 for (s = 0; s < cmcf->servers.nelts; s++) { | |
202 | |
203 /* merge the server{}s' srv_conf's */ | |
204 | |
205 cf->ctx = cscfp[s]->ctx; | |
206 | |
207 if (module->merge_srv_conf) { | |
208 rv = module->merge_srv_conf(cf, | |
209 ctx->srv_conf[mi], | |
210 cscfp[s]->ctx->srv_conf[mi]); | |
211 if (rv != NGX_CONF_OK) { | |
212 *cf = pcf; | |
213 return rv; | |
214 } | |
215 } | |
216 } | |
217 } | |
218 | |
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219 for (m = 0; cf->cycle->modules[m]; m++) { |
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220 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
6174
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Stream: added postconfiguration method to stream modules.
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221 continue; |
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222 } |
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223 |
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224 module = cf->cycle->modules[m]->ctx; |
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225 |
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226 if (module->postconfiguration) { |
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227 if (module->postconfiguration(cf) != NGX_OK) { |
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228 return NGX_CONF_ERROR; |
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229 } |
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230 } |
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231 } |
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232 |
6115 | 233 *cf = pcf; |
234 | |
235 | |
236 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_stream_conf_port_t)) | |
237 != NGX_OK) | |
238 { | |
239 return NGX_CONF_ERROR; | |
240 } | |
241 | |
242 listen = cmcf->listen.elts; | |
243 | |
244 for (i = 0; i < cmcf->listen.nelts; i++) { | |
245 if (ngx_stream_add_ports(cf, &ports, &listen[i]) != NGX_OK) { | |
246 return NGX_CONF_ERROR; | |
247 } | |
248 } | |
249 | |
250 return ngx_stream_optimize_servers(cf, &ports); | |
251 } | |
252 | |
253 | |
254 static ngx_int_t | |
255 ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports, | |
256 ngx_stream_listen_t *listen) | |
257 { | |
258 in_port_t p; | |
259 ngx_uint_t i; | |
260 struct sockaddr *sa; | |
261 ngx_stream_conf_port_t *port; | |
262 ngx_stream_conf_addr_t *addr; | |
263 | |
6560
c90cf79d0e1d
Renamed "u" to "sockaddr" in listen options types.
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264 sa = &listen->sockaddr.sockaddr; |
6593
b3b7e33083ac
Introduced ngx_inet_get_port() and ngx_inet_set_port() functions.
Roman Arutyunyan <arut@nginx.com>
parents:
6560
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265 p = ngx_inet_get_port(sa); |
6115 | 266 |
267 port = ports->elts; | |
268 for (i = 0; i < ports->nelts; i++) { | |
269 | |
6436 | 270 if (p == port[i].port |
271 && listen->type == port[i].type | |
272 && sa->sa_family == port[i].family) | |
273 { | |
6115 | 274 /* a port is already in the port list */ |
275 | |
276 port = &port[i]; | |
277 goto found; | |
278 } | |
279 } | |
280 | |
281 /* add a port to the port list */ | |
282 | |
283 port = ngx_array_push(ports); | |
284 if (port == NULL) { | |
285 return NGX_ERROR; | |
286 } | |
287 | |
288 port->family = sa->sa_family; | |
6436 | 289 port->type = listen->type; |
6115 | 290 port->port = p; |
291 | |
292 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, | |
293 sizeof(ngx_stream_conf_addr_t)) | |
294 != NGX_OK) | |
295 { | |
296 return NGX_ERROR; | |
297 } | |
298 | |
299 found: | |
300 | |
301 addr = ngx_array_push(&port->addrs); | |
302 if (addr == NULL) { | |
303 return NGX_ERROR; | |
304 } | |
305 | |
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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parents:
6169
diff
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306 addr->opt = *listen; |
6115 | 307 |
308 return NGX_OK; | |
309 } | |
310 | |
311 | |
312 static char * | |
313 ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) | |
314 { | |
315 ngx_uint_t i, p, last, bind_wildcard; | |
316 ngx_listening_t *ls; | |
317 ngx_stream_port_t *stport; | |
318 ngx_stream_conf_port_t *port; | |
319 ngx_stream_conf_addr_t *addr; | |
320 ngx_stream_core_srv_conf_t *cscf; | |
321 | |
322 port = ports->elts; | |
323 for (p = 0; p < ports->nelts; p++) { | |
324 | |
325 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, | |
326 sizeof(ngx_stream_conf_addr_t), ngx_stream_cmp_conf_addrs); | |
327 | |
328 addr = port[p].addrs.elts; | |
329 last = port[p].addrs.nelts; | |
330 | |
331 /* | |
332 * if there is the binding to the "*:port" then we need to bind() | |
333 * to the "*:port" only and ignore the other bindings | |
334 */ | |
335 | |
6170
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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parents:
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336 if (addr[last - 1].opt.wildcard) { |
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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parents:
6169
diff
changeset
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337 addr[last - 1].opt.bind = 1; |
6115 | 338 bind_wildcard = 1; |
339 | |
340 } else { | |
341 bind_wildcard = 0; | |
342 } | |
343 | |
344 i = 0; | |
345 | |
346 while (i < last) { | |
347 | |
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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348 if (bind_wildcard && !addr[i].opt.bind) { |
6115 | 349 i++; |
350 continue; | |
351 } | |
352 | |
6560
c90cf79d0e1d
Renamed "u" to "sockaddr" in listen options types.
Maxim Dounin <mdounin@mdounin.ru>
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6436
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353 ls = ngx_create_listening(cf, &addr[i].opt.sockaddr.sockaddr, |
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
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354 addr[i].opt.socklen); |
6115 | 355 if (ls == NULL) { |
356 return NGX_CONF_ERROR; | |
357 } | |
358 | |
359 ls->addr_ntop = 1; | |
360 ls->handler = ngx_stream_init_connection; | |
361 ls->pool_size = 256; | |
6436 | 362 ls->type = addr[i].opt.type; |
6115 | 363 |
6170
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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364 cscf = addr->opt.ctx->srv_conf[ngx_stream_core_module.ctx_index]; |
6129
187aa751ad62
Core: the ngx_set_connection_log() macro.
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diff
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365 |
6115 | 366 ls->logp = cscf->error_log; |
367 ls->log.data = &ls->addr_text; | |
368 ls->log.handler = ngx_accept_log_error; | |
369 | |
6172 | 370 ls->backlog = addr[i].opt.backlog; |
371 | |
6436 | 372 ls->wildcard = addr[i].opt.wildcard; |
373 | |
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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parents:
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374 ls->keepalive = addr[i].opt.so_keepalive; |
6115 | 375 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
6170
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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376 ls->keepidle = addr[i].opt.tcp_keepidle; |
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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377 ls->keepintvl = addr[i].opt.tcp_keepintvl; |
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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378 ls->keepcnt = addr[i].opt.tcp_keepcnt; |
6115 | 379 #endif |
380 | |
381 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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382 ls->ipv6only = addr[i].opt.ipv6only; |
6115 | 383 #endif |
384 | |
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f654addf0eea
Stream: fixed "reuseport" to actually work.
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385 #if (NGX_HAVE_REUSEPORT) |
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386 ls->reuseport = addr[i].opt.reuseport; |
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387 #endif |
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388 |
6115 | 389 stport = ngx_palloc(cf->pool, sizeof(ngx_stream_port_t)); |
390 if (stport == NULL) { | |
391 return NGX_CONF_ERROR; | |
392 } | |
393 | |
394 ls->servers = stport; | |
395 | |
6152
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Simplified ngx_http_init_listening().
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396 stport->naddrs = i + 1; |
6115 | 397 |
398 switch (ls->sockaddr->sa_family) { | |
399 #if (NGX_HAVE_INET6) | |
400 case AF_INET6: | |
401 if (ngx_stream_add_addrs6(cf, stport, addr) != NGX_OK) { | |
402 return NGX_CONF_ERROR; | |
403 } | |
404 break; | |
405 #endif | |
406 default: /* AF_INET */ | |
407 if (ngx_stream_add_addrs(cf, stport, addr) != NGX_OK) { | |
408 return NGX_CONF_ERROR; | |
409 } | |
410 break; | |
411 } | |
412 | |
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The "reuseport" option of the "listen" directive.
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413 if (ngx_clone_listening(cf, ls) != NGX_OK) { |
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414 return NGX_CONF_ERROR; |
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415 } |
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416 |
6115 | 417 addr++; |
418 last--; | |
419 } | |
420 } | |
421 | |
422 return NGX_CONF_OK; | |
423 } | |
424 | |
425 | |
426 static ngx_int_t | |
427 ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
428 ngx_stream_conf_addr_t *addr) | |
429 { | |
430 u_char *p; | |
431 size_t len; | |
432 ngx_uint_t i; | |
433 struct sockaddr_in *sin; | |
434 ngx_stream_in_addr_t *addrs; | |
435 u_char buf[NGX_SOCKADDR_STRLEN]; | |
436 | |
437 stport->addrs = ngx_pcalloc(cf->pool, | |
438 stport->naddrs * sizeof(ngx_stream_in_addr_t)); | |
439 if (stport->addrs == NULL) { | |
440 return NGX_ERROR; | |
441 } | |
442 | |
443 addrs = stport->addrs; | |
444 | |
445 for (i = 0; i < stport->naddrs; i++) { | |
446 | |
6560
c90cf79d0e1d
Renamed "u" to "sockaddr" in listen options types.
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6436
diff
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447 sin = &addr[i].opt.sockaddr.sockaddr_in; |
6115 | 448 addrs[i].addr = sin->sin_addr.s_addr; |
449 | |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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450 addrs[i].conf.ctx = addr[i].opt.ctx; |
6115 | 451 #if (NGX_STREAM_SSL) |
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452 addrs[i].conf.ssl = addr[i].opt.ssl; |
6115 | 453 #endif |
454 | |
6560
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455 len = ngx_sock_ntop(&addr[i].opt.sockaddr.sockaddr, addr[i].opt.socklen, |
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456 buf, NGX_SOCKADDR_STRLEN, 1); |
6115 | 457 |
458 p = ngx_pnalloc(cf->pool, len); | |
459 if (p == NULL) { | |
460 return NGX_ERROR; | |
461 } | |
462 | |
463 ngx_memcpy(p, buf, len); | |
464 | |
465 addrs[i].conf.addr_text.len = len; | |
466 addrs[i].conf.addr_text.data = p; | |
467 } | |
468 | |
469 return NGX_OK; | |
470 } | |
471 | |
472 | |
473 #if (NGX_HAVE_INET6) | |
474 | |
475 static ngx_int_t | |
476 ngx_stream_add_addrs6(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
477 ngx_stream_conf_addr_t *addr) | |
478 { | |
479 u_char *p; | |
480 size_t len; | |
481 ngx_uint_t i; | |
482 struct sockaddr_in6 *sin6; | |
483 ngx_stream_in6_addr_t *addrs6; | |
484 u_char buf[NGX_SOCKADDR_STRLEN]; | |
485 | |
486 stport->addrs = ngx_pcalloc(cf->pool, | |
487 stport->naddrs * sizeof(ngx_stream_in6_addr_t)); | |
488 if (stport->addrs == NULL) { | |
489 return NGX_ERROR; | |
490 } | |
491 | |
492 addrs6 = stport->addrs; | |
493 | |
494 for (i = 0; i < stport->naddrs; i++) { | |
495 | |
6560
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diff
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496 sin6 = &addr[i].opt.sockaddr.sockaddr_in6; |
6115 | 497 addrs6[i].addr6 = sin6->sin6_addr; |
498 | |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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499 addrs6[i].conf.ctx = addr[i].opt.ctx; |
6115 | 500 #if (NGX_STREAM_SSL) |
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501 addrs6[i].conf.ssl = addr[i].opt.ssl; |
6115 | 502 #endif |
503 | |
6560
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504 len = ngx_sock_ntop(&addr[i].opt.sockaddr.sockaddr, addr[i].opt.socklen, |
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505 buf, NGX_SOCKADDR_STRLEN, 1); |
6115 | 506 |
507 p = ngx_pnalloc(cf->pool, len); | |
508 if (p == NULL) { | |
509 return NGX_ERROR; | |
510 } | |
511 | |
512 ngx_memcpy(p, buf, len); | |
513 | |
514 addrs6[i].conf.addr_text.len = len; | |
515 addrs6[i].conf.addr_text.data = p; | |
516 } | |
517 | |
518 return NGX_OK; | |
519 } | |
520 | |
521 #endif | |
522 | |
523 | |
524 static ngx_int_t | |
525 ngx_stream_cmp_conf_addrs(const void *one, const void *two) | |
526 { | |
527 ngx_stream_conf_addr_t *first, *second; | |
528 | |
529 first = (ngx_stream_conf_addr_t *) one; | |
530 second = (ngx_stream_conf_addr_t *) two; | |
531 | |
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532 if (first->opt.wildcard) { |
6115 | 533 /* a wildcard must be the last resort, shift it to the end */ |
534 return 1; | |
535 } | |
536 | |
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537 if (second->opt.wildcard) { |
6115 | 538 /* a wildcard must be the last resort, shift it to the end */ |
539 return -1; | |
540 } | |
541 | |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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542 if (first->opt.bind && !second->opt.bind) { |
6115 | 543 /* shift explicit bind()ed addresses to the start */ |
544 return -1; | |
545 } | |
546 | |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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547 if (!first->opt.bind && second->opt.bind) { |
6115 | 548 /* shift explicit bind()ed addresses to the start */ |
549 return 1; | |
550 } | |
551 | |
552 /* do not sort by default */ | |
553 | |
554 return 0; | |
555 } |