diff options
Diffstat (limited to 'src/imap/ngx_imap.c')
| -rw-r--r-- | src/imap/ngx_imap.c | 210 |
1 files changed, 209 insertions, 1 deletions
diff --git a/src/imap/ngx_imap.c b/src/imap/ngx_imap.c index 2b768ddfb..77b605620 100644 --- a/src/imap/ngx_imap.c +++ b/src/imap/ngx_imap.c @@ -11,6 +11,8 @@ static char *ngx_imap_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); +static int ngx_libc_cdecl ngx_imap_cmp_conf_in_addrs(const void *one, + const void *two); ngx_uint_t ngx_imap_max_module; @@ -56,10 +58,18 @@ static char * ngx_imap_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *rv; - ngx_uint_t m, mi, s; + 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_imap_listen_t *imls; ngx_imap_module_t *module; + ngx_imap_in_port_t *imip; ngx_imap_conf_ctx_t *ctx; + ngx_imap_conf_in_port_t *in_port; + ngx_imap_conf_in_addr_t *in_addr; ngx_imap_core_srv_conf_t **cscfp; ngx_imap_core_main_conf_t *cmcf; @@ -191,5 +201,203 @@ ngx_imap_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) *cf = pcf; + + if (ngx_array_init(&in_ports, cf->temp_pool, 4, + sizeof(ngx_imap_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_imap_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; + } + + /* optimize the lists of ports and addresses */ + + /* AF_INET only */ + + in_port = in_ports.elts; + for (p = 0; p < in_ports.nelts; p++) { + + ngx_qsort(in_port[p].addrs.elts, (size_t) in_port[p].addrs.nelts, + sizeof(ngx_imap_conf_in_addr_t), ngx_imap_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 = -1; + ls->rcvbuf = -1; + ls->sndbuf = -1; + + ls->addr_ntop = 1; + ls->handler = ngx_imap_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_imap_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_imap_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_palloc(cf->pool, + INET_ADDRSTRLEN - 1 + sizeof(":65535") - 1); + if (text == NULL) { + return NGX_CONF_ERROR; + } + + len = ngx_inet_ntop(AF_INET, &in_addr[i].addr, text, + 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 (done) { + break; + } + + in_addr++; + in_port[p].addrs.elts = in_addr; + last--; + + a = 0; + } + } + return NGX_CONF_OK; } + + +static int ngx_libc_cdecl +ngx_imap_cmp_conf_in_addrs(const void *one, const void *two) +{ + ngx_imap_conf_in_addr_t *first, *second; + + first = (ngx_imap_conf_in_addr_t *) one; + second = (ngx_imap_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; +} |