httpd/server/listen.c

	listen.c revision 705c8ed3ef608706c91ca12483d7b54ff9007cc9
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering/* ====================================================================
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * The Apache Software License, Version 1.1
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen *
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * reserved.
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * Redistribution and use in source and binary forms, with or without
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * modification, are permitted provided that the following conditions
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * are met:
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * 1. Redistributions of source code must retain the above copyright
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    notice, this list of conditions and the following disclaimer.
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * 2. Redistributions in binary form must reproduce the above copyright
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    notice, this list of conditions and the following disclaimer in
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    the documentation and/or other materials provided with the
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    distribution.
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen * 3. The end-user documentation included with the redistribution,
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    if any, must include the following acknowledgment:
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *       "This product includes software developed by the
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *        Apache Software Foundation (http://www.apache.org/)."
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    Alternately, this acknowledgment may appear in the software itself,
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *    if and wherever such third-party acknowledgments normally appear.
eac684ef1c29684b1bcd27a89c38c202e568e469Tom Gundersen *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * 4. The names "Apache" and "Apache Software Foundation" must
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *    not be used to endorse or promote products derived from this
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *    software without prior written permission. For written
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *    permission, please contact apache@apache.org.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * 5. Products derived from this software may not be called "Apache",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *    nor may "Apache" appear in their name, without prior written
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *    permission of the Apache Software Foundation.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * SUCH DAMAGE.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * ====================================================================
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * This software consists of voluntary contributions made by many
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * individuals on behalf of the Apache Software Foundation.  For more
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * information on the Apache Software Foundation, please see
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * <http://www.apache.org/>.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * Portions of this software are based upon public domain software
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * originally written at the National Center for Supercomputing Applications,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek * University of Illinois, Urbana-Champaign.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "apr_network_io.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "apr_strings.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "apr_lock.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#define APR_WANT_STRFUNC
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "apr_want.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#define CORE_PRIVATE
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen#include "ap_config.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "httpd.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_config.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "ap_listen.h"
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen#include "http_log.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "mpm.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "mpm_common.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekap_listen_rec *ap_listeners;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#if APR_HAVE_IPV6
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersenstatic int default_family = APR_UNSPEC;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#else
57e27ec0ada6775d85a5201cd25e989d92d0a1afZbigniew Jędrzejewski-Szmekstatic int default_family = APR_INET;
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt#endif
a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardtstatic ap_listen_rec *old_listeners;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic int ap_listenbacklog;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic int send_buffer_size;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek/* TODO: make_sock is just begging and screaming for APR abstraction */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic apr_status_t make_sock(apr_pool_t *p, ap_listen_rec *server)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_socket_t *s = server->sd;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    int one = 1;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_status_t stat;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
a22e1850c36e52cb9d593b99be59b6ba7639d80aLennart Poettering    stat = apr_setsocketopt(s, APR_SO_REUSEADDR, one);
a22e1850c36e52cb9d593b99be59b6ba7639d80aLennart Poettering    if (stat != APR_SUCCESS && stat != APR_ENOTIMPL) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        ap_log_perror(APLOG_MARK, APLOG_CRIT, stat, p,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                    "make_sock: for address %pI, setsockopt: (SO_REUSEADDR)",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     server->bind_addr);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(s);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return stat;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    stat = apr_setsocketopt(s, APR_SO_KEEPALIVE, one);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (stat != APR_SUCCESS && stat != APR_ENOTIMPL) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        ap_log_perror(APLOG_MARK, APLOG_CRIT, stat, p,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                    "make_sock: for address %pI, setsockopt: (SO_KEEPALIVE)",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     server->bind_addr);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(s);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return stat;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen    /*
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen     * To send data over high bandwidth-delay connections at full
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * speed we must force the TCP window to open wide enough to keep the
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * pipe full.  The default window size on many systems
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * is only 4kB.  Cross-country WAN connections of 100ms
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * at 1Mb/s are not impossible for well connected sites.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * If we assume 100ms cross-country latency,
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen     * a 4kB buffer limits throughput to 40kB/s.
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen     *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * To avoid this problem I've added the SendBufferSize directive
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * to allow the web master to configure send buffer size.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * The trade-off of larger buffers is that more kernel memory
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * is consumed.  YMMV, know your customers and your network!
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * -John Heidemann <johnh@isi.edu> 25-Oct-96
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     *
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * If no size is specified, use the kernel default.
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen     */
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen    if (send_buffer_size) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        stat = apr_setsocketopt(s, APR_SO_SNDBUF,  send_buffer_size);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (stat != APR_SUCCESS && stat != APR_ENOTIMPL) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            ap_log_perror(APLOG_MARK, APLOG_WARNING, stat, p,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                        "make_sock: failed to set SendBufferSize for "
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                         "address %pI, using default",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                         server->bind_addr);
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen            /* not a fatal error */
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen        }
5256e00e8b9015dd1a976d647fc71dc7efbd8cf8Tom Gundersen    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#if APR_TCP_NODELAY_INHERITED
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_sock_disable_nagle(s);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if ((stat = apr_bind(s, server->bind_addr)) != APR_SUCCESS) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        ap_log_perror(APLOG_MARK, APLOG_CRIT, stat, p,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     "make_sock: could not bind to address %pI",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     server->bind_addr);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(s);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return stat;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if ((stat = apr_listen(s, ap_listenbacklog)) != APR_SUCCESS) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        ap_log_perror(APLOG_MARK, APLOG_ERR, stat, p,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            "make_sock: unable to listen for connections on address %pI",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     server->bind_addr);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(s);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return stat;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#if APR_HAS_SO_ACCEPTFILTER
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#ifndef ACCEPT_FILTER_NAME
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#define ACCEPT_FILTER_NAME "dataready"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_socket_accept_filter(s, ACCEPT_FILTER_NAME, "");
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    server->sd = s;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    server->active = 1;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#ifdef MPM_ACCEPT_FUNC
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    server->accept_func = MPM_ACCEPT_FUNC;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#else
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    server->accept_func = NULL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    return APR_SUCCESS;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic apr_status_t close_listeners_on_exec(void *v)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec *lr;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    for (lr = ap_listeners; lr; lr = lr->next) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(lr->sd);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        lr->active = 0;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    return APR_SUCCESS;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic void find_default_family(apr_pool_t *p)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#if APR_HAVE_IPV6
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    /* We know the platform supports IPv6, but this particular
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * system may not have IPv6 enabled.  See if we can get an
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * AF_INET6 socket.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (default_family == APR_UNSPEC) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_t *tmp_sock;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (apr_socket_create(&tmp_sock, APR_INET6, SOCK_STREAM,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                              p) == APR_SUCCESS) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            apr_socket_close(tmp_sock);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            default_family = APR_INET6;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        else {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            default_family = APR_INET;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic void alloc_listener(process_rec *process, char *addr, apr_port_t port)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec **walk;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec *new;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_status_t status;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    char *oldaddr;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_port_t oldport;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_sockaddr_t *sa;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (!addr) { /* don't bind to specific interface */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        find_default_family(process->pool);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        switch(default_family) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        case APR_INET:
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            addr = "0.0.0.0";
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering            break;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#if APR_HAVE_IPV6
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        case APR_INET6:
e88d8021ba34be32ef5ace32e7243da798b0d1c5Zbigniew Jędrzejewski-Szmek            addr = "::";
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt            break;
e88d8021ba34be32ef5ace32e7243da798b0d1c5Zbigniew Jędrzejewski-Szmek#endif
e88d8021ba34be32ef5ace32e7243da798b0d1c5Zbigniew Jędrzejewski-Szmek        default:
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            ap_assert(1 != 1); /* should not occur */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    /* see if we've got an old listener for this address:port */
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering    for (walk = &old_listeners; *walk; walk = &(*walk)->next) {
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering        sa = (*walk)->bind_addr;
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering        /* Some listeners are not real so they will not have a bind_addr. */
ad9437836f5d94b44d40ee702a0455a637c30322Lennart Poettering        if (sa) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            apr_sockaddr_port_get(&oldport, sa);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            apr_sockaddr_ip_get(&oldaddr, sa);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            if (!strcmp(oldaddr, addr) && port == oldport) {
56fd6bf795926409b087bce406ea851ad89f9fe8Tom Gundersen                /* re-use existing record */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                new = *walk;
d0d6a4cd70477970812bff0a37e70f66208d7c14Tom Gundersen                *walk = new->next;
d0d6a4cd70477970812bff0a37e70f66208d7c14Tom Gundersen                new->next = ap_listeners;
d0d6a4cd70477970812bff0a37e70f66208d7c14Tom Gundersen                ap_listeners = new;
d0d6a4cd70477970812bff0a37e70f66208d7c14Tom Gundersen                return;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    /* this has to survive restarts */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    new = apr_palloc(process->pool, sizeof(ap_listen_rec));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    new->active = 0;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if ((status = apr_sockaddr_info_get(&new->bind_addr, addr, APR_UNSPEC,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                                      port, 0, process->pool)) != APR_SUCCESS) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        ap_log_perror(APLOG_MARK, APLOG_CRIT, status, process->pool,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                     "alloc_listener: failed to set up sockaddr for %s", addr);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return;
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen    }
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen    if ((status = apr_socket_create(&new->sd, new->bind_addr->sa.sin.sin_family,
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen                                  SOCK_STREAM, process->pool)) != APR_SUCCESS) {
a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt        ap_log_perror(APLOG_MARK, APLOG_CRIT, status, process->pool,
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen                     "alloc_listener: failed to get a socket for %s", addr);
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen        return;
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen    }
113bfde15f9393fa8bc22cbd839c0bc64e733ee2Tom Gundersen    new->next = ap_listeners;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listeners = new;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt#if !defined(SPMT_OS2_MPM)
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardtstatic
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#endif
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekint ap_listen_open(process_rec *process, apr_port_t port)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_pool_t *pconf = process->pconf;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec *lr;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec *next;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    int num_open;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    /* Don't allocate a default listener.  If we need to listen to a
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek     * port, then the user needs to have a Listen directive in their
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta     * config file.
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta     */
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta    num_open = 0;
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta    for (lr = ap_listeners; lr; lr = lr->next) {
dd2b607b7d1ce355e93f9f71cd256ec20b8ae9c4Thomas Hindoe Paaboel Andersen        if (lr->active) {
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta            ++num_open;
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta        }
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta        else {
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta            if (make_sock(pconf, lr) == APR_SUCCESS) {
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta                ++num_open;
0d4ad91dd4fc831c31a9775b0eadf97fea6cd7f6Alin Rauta                lr->active = 1;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            else {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                /* fatal error */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                return -1;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek            }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
3ba3a79df4ae094d1008c04a9af8d1ff970124c4Zbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    /* close the old listeners */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    for (lr = old_listeners; lr; lr = next) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        apr_socket_close(lr->sd);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        lr->active = 0;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        next = lr->next;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        /*free(lr);*/
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    old_listeners = NULL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_pool_cleanup_register(pconf, NULL, apr_pool_cleanup_null,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                              close_listeners_on_exec);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    return num_open ? 0 : -1;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekint ap_setup_listeners(server_rec *s)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listen_rec *lr;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    int num_listeners = 0;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (ap_listen_open(s->process, s->port)) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek       return 0;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    for (lr = ap_listeners; lr; lr = lr->next) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        num_listeners++;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
3ba3a79df4ae094d1008c04a9af8d1ff970124c4Zbigniew Jędrzejewski-Szmek    return num_listeners;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid ap_listen_pre_config(void)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    old_listeners = ap_listeners;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listeners = NULL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listenbacklog = DEFAULT_LISTENBACKLOG;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
3ba3a79df4ae094d1008c04a9af8d1ff970124c4Zbigniew Jędrzejewski-Szmekconst char *ap_set_listener(cmd_parms *cmd, void *dummy, const char *ips)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    char *host, *scope_id;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_port_t port;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    apr_status_t rv;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (err != NULL) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return err;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    rv = apr_parse_addr_port(&host, &scope_id, &port, ips, cmd->pool);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (rv != APR_SUCCESS) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return "Invalid address or port";
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (host && !strcmp(host, "*")) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        host = NULL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (scope_id) {
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt        /* XXX scope id support is useful with link-local IPv6 addresses */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return "Scope id is not supported";
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    if (!port) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return "Port must be specified";
2972cba11712c3bfbe9fa07d1f3c3c4330127733Nick Owens    }
2972cba11712c3bfbe9fa07d1f3c3c4330127733Nick Owens
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering    alloc_listener(cmd->server->process, host, port);
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering    return NULL;
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering}
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poetteringconst char *ap_set_listenbacklog(cmd_parms *cmd, void *dummy, const char *arg)
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering{
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering    int b;
2972cba11712c3bfbe9fa07d1f3c3c4330127733Nick Owens
2972cba11712c3bfbe9fa07d1f3c3c4330127733Nick Owens    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering    if (err != NULL) {
e2bccc9d9974eb1290653ecfa3ccfd03c313842bDavid Herrmann        return err;
e2bccc9d9974eb1290653ecfa3ccfd03c313842bDavid Herrmann    }
e2bccc9d9974eb1290653ecfa3ccfd03c313842bDavid Herrmann
505c5f6de1a5c0afb238a46db94fe3571902cc9dBenedikt Morbach    b = atoi(arg);
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering    if (b < 1) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return "ListenBacklog must be > 0";
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    ap_listenbacklog = b;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    return NULL;
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekconst char *ap_set_send_buffer_size(cmd_parms *cmd, void *dummy,
5c82dd13e1eef502afcef209a3b14a2100966909Benedikt Morbach                                    const char *arg)
4046d8361c55c80ab8577aea52523b9e6eab0d0cLennart Poettering{
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek    int s = atoi(arg);
a46e37cb1225a36a33e8728005693e825cdbc01aSusant Sahani    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
a46e37cb1225a36a33e8728005693e825cdbc01aSusant Sahani    if (err != NULL) {
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering        return err;
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering    }
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering    if (s < 512 && s != 0) {
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering        return "SendBufferSize must be >= 512 bytes, or 0 for system default.";
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering    }
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt    send_buffer_size = s;
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering    return NULL;
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt}
1f0d9695125bf8e66d0e53e37d454755a84899bbLennart Poettering