| /* | |
| * Copyright (C) Igor Sysoev | |
| */ | |
| #include <ngx_config.h> | |
| #include <ngx_core.h> | |
| #include <ngx_event.h> | |
| #include <ngx_mail.h> | |
| static char *ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| static ngx_int_t ngx_mail_cmp_conf_in_addrs(const void *one, const void *two); | |
| ngx_uint_t ngx_mail_max_module; | |
| static ngx_command_t ngx_mail_commands[] = { | |
| { ngx_string("mail"), | |
| NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
| ngx_mail_block, | |
| 0, | |
| 0, | |
| NULL }, | |
| { ngx_string("imap"), | |
| NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
| ngx_mail_block, | |
| 0, | |
| 0, | |
| NULL }, | |
| ngx_null_command | |
| }; | |
| static ngx_core_module_t ngx_mail_module_ctx = { | |
| ngx_string("mail"), | |
| NULL, | |
| NULL | |
| }; | |
| ngx_module_t ngx_mail_module = { | |
| NGX_MODULE_V1, | |
| &ngx_mail_module_ctx, /* module context */ | |
| ngx_mail_commands, /* module directives */ | |
| NGX_CORE_MODULE, /* module type */ | |
| NULL, /* init master */ | |
| NULL, /* init module */ | |
| NULL, /* init process */ | |
| NULL, /* init thread */ | |
| NULL, /* exit thread */ | |
| NULL, /* exit process */ | |
| NULL, /* exit master */ | |
| NGX_MODULE_V1_PADDING | |
| }; | |
| static char * | |
| ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| { | |
| char *rv; | |
| u_char *text; | |
| size_t len; | |
| ngx_uint_t i, a, l, m, mi, s, p, last, bind_all, done; | |
| ngx_conf_t pcf; | |
| ngx_array_t in_ports; | |
| ngx_listening_t *ls; | |
| ngx_mail_listen_t *imls; | |
| ngx_mail_module_t *module; | |
| ngx_mail_in_port_t *imip; | |
| ngx_mail_conf_ctx_t *ctx; | |
| ngx_mail_conf_in_port_t *in_port; | |
| ngx_mail_conf_in_addr_t *in_addr; | |
| ngx_mail_core_srv_conf_t **cscfp; | |
| ngx_mail_core_main_conf_t *cmcf; | |
| if (cmd->name.data[0] == 'i') { | |
| ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
| "the \"imap\" directive is deprecated, " | |
| "use the \"mail\" directive instead"); | |
| } | |
| /* the main mail context */ | |
| ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); | |
| if (ctx == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| *(ngx_mail_conf_ctx_t **) conf = ctx; | |
| /* count the number of the http modules and set up their indices */ | |
| ngx_mail_max_module = 0; | |
| for (m = 0; ngx_modules[m]; m++) { | |
| if (ngx_modules[m]->type != NGX_MAIL_MODULE) { | |
| continue; | |
| } | |
| ngx_modules[m]->ctx_index = ngx_mail_max_module++; | |
| } | |
| /* the mail main_conf context, it is the same in the all mail contexts */ | |
| ctx->main_conf = ngx_pcalloc(cf->pool, | |
| sizeof(void *) * ngx_mail_max_module); | |
| if (ctx->main_conf == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| /* | |
| * the mail null srv_conf context, it is used to merge | |
| * the server{}s' srv_conf's | |
| */ | |
| ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); | |
| if (ctx->srv_conf == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| /* | |
| * create the main_conf's, the null srv_conf's, and the null loc_conf's | |
| * of the all mail modules | |
| */ | |
| for (m = 0; ngx_modules[m]; m++) { | |
| if (ngx_modules[m]->type != NGX_MAIL_MODULE) { | |
| continue; | |
| } | |
| module = ngx_modules[m]->ctx; | |
| mi = ngx_modules[m]->ctx_index; | |
| if (module->create_main_conf) { | |
| ctx->main_conf[mi] = module->create_main_conf(cf); | |
| if (ctx->main_conf[mi] == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| } | |
| if (module->create_srv_conf) { | |
| ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
| if (ctx->srv_conf[mi] == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| } | |
| } | |
| /* parse inside the mail{} block */ | |
| pcf = *cf; | |
| cf->ctx = ctx; | |
| cf->module_type = NGX_MAIL_MODULE; | |
| cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
| rv = ngx_conf_parse(cf, NULL); | |
| if (rv != NGX_CONF_OK) { | |
| *cf = pcf; | |
| return rv; | |
| } | |
| /* init mail{} main_conf's, merge the server{}s' srv_conf's */ | |
| cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; | |
| cscfp = cmcf->servers.elts; | |
| for (m = 0; ngx_modules[m]; m++) { | |
| if (ngx_modules[m]->type != NGX_MAIL_MODULE) { | |
| continue; | |
| } | |
| module = ngx_modules[m]->ctx; | |
| mi = ngx_modules[m]->ctx_index; | |
| /* init mail{} main_conf's */ | |
| cf->ctx = ctx; | |
| if (module->init_main_conf) { | |
| rv = module->init_main_conf(cf, ctx->main_conf[mi]); | |
| if (rv != NGX_CONF_OK) { | |
| *cf = pcf; | |
| return rv; | |
| } | |
| } | |
| for (s = 0; s < cmcf->servers.nelts; s++) { | |
| /* merge the server{}s' srv_conf's */ | |
| cf->ctx = cscfp[s]->ctx; | |
| if (module->merge_srv_conf) { | |
| rv = module->merge_srv_conf(cf, | |
| ctx->srv_conf[mi], | |
| cscfp[s]->ctx->srv_conf[mi]); | |
| if (rv != NGX_CONF_OK) { | |
| *cf = pcf; | |
| return rv; | |
| } | |
| } | |
| } | |
| } | |
| *cf = pcf; | |
| if (ngx_array_init(&in_ports, cf->temp_pool, 4, | |
| sizeof(ngx_mail_conf_in_port_t)) | |
| != NGX_OK) | |
| { | |
| return NGX_CONF_ERROR; | |
| } | |
| imls = cmcf->listen.elts; | |
| for (l = 0; l < cmcf->listen.nelts; l++) { | |
| /* AF_INET only */ | |
| in_port = in_ports.elts; | |
| for (p = 0; p < in_ports.nelts; p++) { | |
| if (in_port[p].port == imls[l].port) { | |
| in_port = &in_port[p]; | |
| goto found; | |
| } | |
| } | |
| in_port = ngx_array_push(&in_ports); | |
| if (in_port == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| in_port->port = imls[l].port; | |
| if (ngx_array_init(&in_port->addrs, cf->temp_pool, 2, | |
| sizeof(ngx_mail_conf_in_addr_t)) | |
| != NGX_OK) | |
| { | |
| return NGX_CONF_ERROR; | |
| } | |
| found: | |
| in_addr = ngx_array_push(&in_port->addrs); | |
| if (in_addr == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| in_addr->addr = imls[l].addr; | |
| in_addr->ctx = imls[l].ctx; | |
| in_addr->bind = imls[l].bind; | |
| #if (NGX_MAIL_SSL) | |
| in_addr->ssl = imls[l].ssl; | |
| #endif | |
| } | |
| /* optimize the lists of ports and addresses */ | |
| /* AF_INET only */ | |
| in_port = in_ports.elts; | |
| for (p = 0; p < in_ports.nelts; p++) { | |
| ngx_sort(in_port[p].addrs.elts, (size_t) in_port[p].addrs.nelts, | |
| sizeof(ngx_mail_conf_in_addr_t), ngx_mail_cmp_conf_in_addrs); | |
| in_addr = in_port[p].addrs.elts; | |
| last = in_port[p].addrs.nelts; | |
| /* | |
| * if there is the binding to the "*:port" then we need to bind() | |
| * to the "*:port" only and ignore the other bindings | |
| */ | |
| if (in_addr[last - 1].addr == INADDR_ANY) { | |
| in_addr[last - 1].bind = 1; | |
| bind_all = 0; | |
| } else { | |
| bind_all = 1; | |
| } | |
| for (a = 0; a < last; /* void */ ) { | |
| if (!bind_all && !in_addr[a].bind) { | |
| a++; | |
| continue; | |
| } | |
| ls = ngx_listening_inet_stream_socket(cf, in_addr[a].addr, | |
| in_port[p].port); | |
| if (ls == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| ls->backlog = NGX_LISTEN_BACKLOG; | |
| ls->rcvbuf = -1; | |
| ls->sndbuf = -1; | |
| ls->addr_ntop = 1; | |
| ls->handler = ngx_mail_init_connection; | |
| ls->pool_size = 256; | |
| /* STUB */ | |
| ls->log = *cf->cycle->new_log; | |
| ls->log.data = &ls->addr_text; | |
| ls->log.handler = ngx_accept_log_error; | |
| /**/ | |
| imip = ngx_palloc(cf->pool, sizeof(ngx_mail_in_port_t)); | |
| if (imip == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| ls->servers = imip; | |
| in_addr = in_port[p].addrs.elts; | |
| if (in_addr[a].bind && in_addr[a].addr != INADDR_ANY) { | |
| imip->naddrs = 1; | |
| done = 0; | |
| } else if (in_port[p].addrs.nelts > 1 | |
| && in_addr[last - 1].addr == INADDR_ANY) | |
| { | |
| imip->naddrs = last; | |
| done = 1; | |
| } else { | |
| imip->naddrs = 1; | |
| done = 0; | |
| } | |
| #if 0 | |
| ngx_log_error(NGX_LOG_ALERT, cf->log, 0, | |
| "%ui: %V %d %ui %ui", | |
| a, &ls->addr_text, in_addr[a].bind, | |
| imip->naddrs, last); | |
| #endif | |
| imip->addrs = ngx_pcalloc(cf->pool, | |
| imip->naddrs * sizeof(ngx_mail_in_addr_t)); | |
| if (imip->addrs == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| for (i = 0; i < imip->naddrs; i++) { | |
| imip->addrs[i].addr = in_addr[i].addr; | |
| imip->addrs[i].ctx = in_addr[i].ctx; | |
| text = ngx_pnalloc(cf->pool, | |
| NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1); | |
| if (text == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| len = ngx_inet_ntop(AF_INET, &in_addr[i].addr, text, | |
| NGX_INET_ADDRSTRLEN); | |
| len = ngx_sprintf(text + len, ":%d", in_port[p].port) - text; | |
| imip->addrs[i].addr_text.len = len; | |
| imip->addrs[i].addr_text.data = text; | |
| #if (NGX_MAIL_SSL) | |
| imip->addrs[i].ssl = in_addr[i].ssl; | |
| #endif | |
| } | |
| if (done) { | |
| break; | |
| } | |
| in_addr++; | |
| in_port[p].addrs.elts = in_addr; | |
| last--; | |
| a = 0; | |
| } | |
| } | |
| return NGX_CONF_OK; | |
| } | |
| static ngx_int_t | |
| ngx_mail_cmp_conf_in_addrs(const void *one, const void *two) | |
| { | |
| ngx_mail_conf_in_addr_t *first, *second; | |
| first = (ngx_mail_conf_in_addr_t *) one; | |
| second = (ngx_mail_conf_in_addr_t *) two; | |
| if (first->addr == INADDR_ANY) { | |
| /* the INADDR_ANY must be the last resort, shift it to the end */ | |
| return 1; | |
| } | |
| if (first->bind && !second->bind) { | |
| /* shift explicit bind()ed addresses to the start */ | |
| return -1; | |
| } | |
| if (!first->bind && second->bind) { | |
| /* shift explicit bind()ed addresses to the start */ | |
| return 1; | |
| } | |
| /* do not sort by default */ | |
| return 0; | |
| } |