Mercurial > hg > nginx
annotate src/mail/ngx_mail.c @ 2224:109849282793
*) listen ssl
*) no default ssl_cetificate and ssl_cetificate_key
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 01 Sep 2008 14:19:01 +0000 |
| parents | 74477ea8074f |
| children | d478379e51ac |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
| 1136 | 10 #include <ngx_mail.h> |
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11 |
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12 |
| 1136 | 13 static char *ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
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14 static ngx_int_t ngx_mail_cmp_conf_in_addrs(const void *one, const void *two); |
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15 |
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16 |
| 1136 | 17 ngx_uint_t ngx_mail_max_module; |
| 521 | 18 |
| 19 | |
| 1136 | 20 static ngx_command_t ngx_mail_commands[] = { |
| 21 | |
| 22 { ngx_string("mail"), | |
| 23 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
| 24 ngx_mail_block, | |
| 25 0, | |
| 26 0, | |
| 27 NULL }, | |
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28 |
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29 { ngx_string("imap"), |
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30 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, |
| 1136 | 31 ngx_mail_block, |
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32 0, |
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33 0, |
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34 NULL }, |
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35 |
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36 ngx_null_command |
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37 }; |
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38 |
| 577 | 39 |
| 1136 | 40 static ngx_core_module_t ngx_mail_module_ctx = { |
| 41 ngx_string("mail"), | |
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42 NULL, |
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43 NULL |
| 577 | 44 }; |
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45 |
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46 |
| 1136 | 47 ngx_module_t ngx_mail_module = { |
| 509 | 48 NGX_MODULE_V1, |
| 1136 | 49 &ngx_mail_module_ctx, /* module context */ |
| 50 ngx_mail_commands, /* module directives */ | |
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51 NGX_CORE_MODULE, /* module type */ |
| 541 | 52 NULL, /* init master */ |
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53 NULL, /* init module */ |
| 541 | 54 NULL, /* init process */ |
| 55 NULL, /* init thread */ | |
| 56 NULL, /* exit thread */ | |
| 57 NULL, /* exit process */ | |
| 58 NULL, /* exit master */ | |
| 59 NGX_MODULE_V1_PADDING | |
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60 }; |
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61 |
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62 |
| 521 | 63 static char * |
| 1136 | 64 ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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65 { |
| 521 | 66 char *rv; |
| 641 | 67 u_char *text; |
| 68 size_t len; | |
| 69 ngx_uint_t i, a, l, m, mi, s, p, last, bind_all, done; | |
| 521 | 70 ngx_conf_t pcf; |
| 641 | 71 ngx_array_t in_ports; |
| 72 ngx_listening_t *ls; | |
| 1136 | 73 ngx_mail_listen_t *imls; |
| 74 ngx_mail_module_t *module; | |
| 75 ngx_mail_in_port_t *imip; | |
| 76 ngx_mail_conf_ctx_t *ctx; | |
| 77 ngx_mail_conf_in_port_t *in_port; | |
| 78 ngx_mail_conf_in_addr_t *in_addr; | |
| 79 ngx_mail_core_srv_conf_t **cscfp; | |
| 80 ngx_mail_core_main_conf_t *cmcf; | |
| 521 | 81 |
| 1136 | 82 if (cmd->name.data[0] == 'i') { |
| 83 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
| 84 "the \"imap\" directive is deprecated, " | |
| 85 "use the \"mail\" directive instead"); | |
| 86 } | |
| 521 | 87 |
| 1136 | 88 /* the main mail context */ |
| 89 | |
| 90 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); | |
| 521 | 91 if (ctx == NULL) { |
| 92 return NGX_CONF_ERROR; | |
| 93 } | |
| 94 | |
| 1136 | 95 *(ngx_mail_conf_ctx_t **) conf = ctx; |
| 521 | 96 |
| 97 /* count the number of the http modules and set up their indices */ | |
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98 |
| 1136 | 99 ngx_mail_max_module = 0; |
| 521 | 100 for (m = 0; ngx_modules[m]; m++) { |
| 1136 | 101 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 102 continue; |
| 103 } | |
| 104 | |
| 1136 | 105 ngx_modules[m]->ctx_index = ngx_mail_max_module++; |
| 521 | 106 } |
| 107 | |
| 108 | |
| 1136 | 109 /* the mail main_conf context, it is the same in the all mail contexts */ |
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110 |
| 521 | 111 ctx->main_conf = ngx_pcalloc(cf->pool, |
| 1136 | 112 sizeof(void *) * ngx_mail_max_module); |
| 521 | 113 if (ctx->main_conf == NULL) { |
| 114 return NGX_CONF_ERROR; | |
| 115 } | |
| 116 | |
| 117 | |
| 118 /* | |
| 1136 | 119 * the mail null srv_conf context, it is used to merge |
| 521 | 120 * the server{}s' srv_conf's |
| 121 */ | |
| 122 | |
| 1136 | 123 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
| 521 | 124 if (ctx->srv_conf == NULL) { |
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125 return NGX_CONF_ERROR; |
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126 } |
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127 |
| 521 | 128 |
| 129 /* | |
| 130 * create the main_conf's, the null srv_conf's, and the null loc_conf's | |
| 1136 | 131 * of the all mail modules |
| 521 | 132 */ |
| 133 | |
| 134 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 135 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 136 continue; |
| 137 } | |
| 138 | |
| 139 module = ngx_modules[m]->ctx; | |
| 140 mi = ngx_modules[m]->ctx_index; | |
| 141 | |
| 142 if (module->create_main_conf) { | |
| 143 ctx->main_conf[mi] = module->create_main_conf(cf); | |
| 144 if (ctx->main_conf[mi] == NULL) { | |
| 145 return NGX_CONF_ERROR; | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 if (module->create_srv_conf) { | |
| 150 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
| 151 if (ctx->srv_conf[mi] == NULL) { | |
| 152 return NGX_CONF_ERROR; | |
| 153 } | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 | |
| 1136 | 158 /* parse inside the mail{} block */ |
| 521 | 159 |
| 160 pcf = *cf; | |
| 161 cf->ctx = ctx; | |
| 162 | |
| 1136 | 163 cf->module_type = NGX_MAIL_MODULE; |
| 164 cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
| 521 | 165 rv = ngx_conf_parse(cf, NULL); |
| 166 | |
| 167 if (rv != NGX_CONF_OK) { | |
| 168 *cf = pcf; | |
| 169 return rv; | |
| 170 } | |
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171 |
| 521 | 172 |
| 1136 | 173 /* init mail{} main_conf's, merge the server{}s' srv_conf's */ |
| 521 | 174 |
| 1136 | 175 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 176 cscfp = cmcf->servers.elts; |
| 177 | |
| 178 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 179 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 180 continue; |
| 181 } | |
| 182 | |
| 183 module = ngx_modules[m]->ctx; | |
| 184 mi = ngx_modules[m]->ctx_index; | |
| 185 | |
| 1136 | 186 /* init mail{} main_conf's */ |
| 521 | 187 |
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188 cf->ctx = ctx; |
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189 |
| 521 | 190 if (module->init_main_conf) { |
| 577 | 191 rv = module->init_main_conf(cf, ctx->main_conf[mi]); |
| 521 | 192 if (rv != NGX_CONF_OK) { |
| 193 *cf = pcf; | |
| 194 return rv; | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 for (s = 0; s < cmcf->servers.nelts; s++) { | |
| 577 | 199 |
| 521 | 200 /* merge the server{}s' srv_conf's */ |
| 577 | 201 |
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202 cf->ctx = cscfp[s]->ctx; |
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203 |
| 521 | 204 if (module->merge_srv_conf) { |
| 205 rv = module->merge_srv_conf(cf, | |
| 206 ctx->srv_conf[mi], | |
| 207 cscfp[s]->ctx->srv_conf[mi]); | |
| 208 if (rv != NGX_CONF_OK) { | |
| 209 *cf = pcf; | |
| 210 return rv; | |
| 211 } | |
| 212 } | |
| 213 } | |
| 214 } | |
| 215 | |
| 577 | 216 *cf = pcf; |
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217 |
| 641 | 218 |
| 219 if (ngx_array_init(&in_ports, cf->temp_pool, 4, | |
| 1136 | 220 sizeof(ngx_mail_conf_in_port_t)) |
| 641 | 221 != NGX_OK) |
| 222 { | |
| 223 return NGX_CONF_ERROR; | |
| 224 } | |
| 225 | |
| 226 imls = cmcf->listen.elts; | |
| 227 | |
| 228 for (l = 0; l < cmcf->listen.nelts; l++) { | |
| 229 | |
| 230 /* AF_INET only */ | |
| 231 | |
| 232 in_port = in_ports.elts; | |
| 233 for (p = 0; p < in_ports.nelts; p++) { | |
| 234 if (in_port[p].port == imls[l].port) { | |
| 235 in_port = &in_port[p]; | |
| 236 goto found; | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 in_port = ngx_array_push(&in_ports); | |
| 241 if (in_port == NULL) { | |
| 242 return NGX_CONF_ERROR; | |
| 243 } | |
| 244 | |
| 245 in_port->port = imls[l].port; | |
| 246 | |
| 247 if (ngx_array_init(&in_port->addrs, cf->temp_pool, 2, | |
| 1136 | 248 sizeof(ngx_mail_conf_in_addr_t)) |
| 641 | 249 != NGX_OK) |
| 250 { | |
| 251 return NGX_CONF_ERROR; | |
| 252 } | |
| 253 | |
| 254 found: | |
| 255 | |
| 256 in_addr = ngx_array_push(&in_port->addrs); | |
| 257 if (in_addr == NULL) { | |
| 258 return NGX_CONF_ERROR; | |
| 259 } | |
| 260 | |
| 261 in_addr->addr = imls[l].addr; | |
| 262 in_addr->ctx = imls[l].ctx; | |
| 263 in_addr->bind = imls[l].bind; | |
| 2224 | 264 #if (NGX_MAIL_SSL) |
| 265 in_addr->ssl = imls[l].ssl; | |
| 266 #endif | |
| 641 | 267 } |
| 268 | |
| 269 /* optimize the lists of ports and addresses */ | |
| 270 | |
| 271 /* AF_INET only */ | |
| 272 | |
| 273 in_port = in_ports.elts; | |
| 274 for (p = 0; p < in_ports.nelts; p++) { | |
| 275 | |
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276 ngx_sort(in_port[p].addrs.elts, (size_t) in_port[p].addrs.nelts, |
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277 sizeof(ngx_mail_conf_in_addr_t), ngx_mail_cmp_conf_in_addrs); |
| 641 | 278 |
| 279 in_addr = in_port[p].addrs.elts; | |
| 280 last = in_port[p].addrs.nelts; | |
| 281 | |
| 282 /* | |
| 283 * if there is the binding to the "*:port" then we need to bind() | |
| 284 * to the "*:port" only and ignore the other bindings | |
| 285 */ | |
| 286 | |
| 287 if (in_addr[last - 1].addr == INADDR_ANY) { | |
| 288 in_addr[last - 1].bind = 1; | |
| 289 bind_all = 0; | |
| 290 | |
| 291 } else { | |
| 292 bind_all = 1; | |
| 293 } | |
| 294 | |
| 295 for (a = 0; a < last; /* void */ ) { | |
| 296 | |
| 297 if (!bind_all && !in_addr[a].bind) { | |
| 298 a++; | |
| 299 continue; | |
| 300 } | |
| 301 | |
| 302 ls = ngx_listening_inet_stream_socket(cf, in_addr[a].addr, | |
| 303 in_port[p].port); | |
| 304 if (ls == NULL) { | |
| 305 return NGX_CONF_ERROR; | |
| 306 } | |
| 307 | |
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308 ls->backlog = NGX_LISTEN_BACKLOG; |
| 641 | 309 ls->rcvbuf = -1; |
| 310 ls->sndbuf = -1; | |
| 311 | |
| 312 ls->addr_ntop = 1; | |
| 1136 | 313 ls->handler = ngx_mail_init_connection; |
| 641 | 314 ls->pool_size = 256; |
| 315 | |
| 316 /* STUB */ | |
| 317 ls->log = *cf->cycle->new_log; | |
| 318 ls->log.data = &ls->addr_text; | |
| 319 ls->log.handler = ngx_accept_log_error; | |
| 320 /**/ | |
| 321 | |
| 1136 | 322 imip = ngx_palloc(cf->pool, sizeof(ngx_mail_in_port_t)); |
| 641 | 323 if (imip == NULL) { |
| 324 return NGX_CONF_ERROR; | |
| 325 } | |
| 326 | |
| 327 ls->servers = imip; | |
| 328 | |
| 329 in_addr = in_port[p].addrs.elts; | |
| 330 | |
| 331 if (in_addr[a].bind && in_addr[a].addr != INADDR_ANY) { | |
| 332 imip->naddrs = 1; | |
| 333 done = 0; | |
| 334 | |
| 335 } else if (in_port[p].addrs.nelts > 1 | |
| 336 && in_addr[last - 1].addr == INADDR_ANY) | |
| 337 { | |
| 338 imip->naddrs = last; | |
| 339 done = 1; | |
| 340 | |
| 341 } else { | |
| 342 imip->naddrs = 1; | |
| 343 done = 0; | |
| 344 } | |
| 345 | |
| 346 #if 0 | |
| 347 ngx_log_error(NGX_LOG_ALERT, cf->log, 0, | |
| 348 "%ui: %V %d %ui %ui", | |
| 349 a, &ls->addr_text, in_addr[a].bind, | |
| 350 imip->naddrs, last); | |
| 351 #endif | |
| 352 | |
| 353 imip->addrs = ngx_pcalloc(cf->pool, | |
| 1136 | 354 imip->naddrs * sizeof(ngx_mail_in_addr_t)); |
| 641 | 355 if (imip->addrs == NULL) { |
| 356 return NGX_CONF_ERROR; | |
| 357 } | |
| 358 | |
| 359 for (i = 0; i < imip->naddrs; i++) { | |
| 360 imip->addrs[i].addr = in_addr[i].addr; | |
| 361 imip->addrs[i].ctx = in_addr[i].ctx; | |
| 362 | |
| 2049 | 363 text = ngx_pnalloc(cf->pool, |
|
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364 NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1); |
| 641 | 365 if (text == NULL) { |
| 366 return NGX_CONF_ERROR; | |
| 367 } | |
| 368 | |
| 369 len = ngx_inet_ntop(AF_INET, &in_addr[i].addr, text, | |
|
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370 NGX_INET_ADDRSTRLEN); |
| 641 | 371 |
| 372 len = ngx_sprintf(text + len, ":%d", in_port[p].port) - text; | |
| 373 | |
| 374 imip->addrs[i].addr_text.len = len; | |
| 375 imip->addrs[i].addr_text.data = text; | |
| 2224 | 376 |
| 377 #if (NGX_MAIL_SSL) | |
| 378 imip->addrs[i].ssl = in_addr[i].ssl; | |
| 379 #endif | |
| 641 | 380 } |
| 381 | |
| 382 if (done) { | |
| 383 break; | |
| 384 } | |
| 385 | |
| 386 in_addr++; | |
| 387 in_port[p].addrs.elts = in_addr; | |
| 388 last--; | |
| 389 | |
| 390 a = 0; | |
| 391 } | |
| 392 } | |
| 393 | |
|
417
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394 return NGX_CONF_OK; |
|
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395 } |
| 641 | 396 |
| 397 | |
|
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398 static ngx_int_t |
| 1136 | 399 ngx_mail_cmp_conf_in_addrs(const void *one, const void *two) |
| 641 | 400 { |
| 1136 | 401 ngx_mail_conf_in_addr_t *first, *second; |
| 641 | 402 |
| 1136 | 403 first = (ngx_mail_conf_in_addr_t *) one; |
| 404 second = (ngx_mail_conf_in_addr_t *) two; | |
| 641 | 405 |
| 406 if (first->addr == INADDR_ANY) { | |
| 407 /* the INADDR_ANY must be the last resort, shift it to the end */ | |
| 408 return 1; | |
| 409 } | |
| 410 | |
| 411 if (first->bind && !second->bind) { | |
| 412 /* shift explicit bind()ed addresses to the start */ | |
| 413 return -1; | |
| 414 } | |
| 415 | |
| 416 if (!first->bind && second->bind) { | |
| 417 /* shift explicit bind()ed addresses to the start */ | |
| 418 return 1; | |
| 419 } | |
| 420 | |
| 421 /* do not sort by default */ | |
| 422 | |
| 423 return 0; | |
| 424 } |