mirror of
https://github.com/pfsense/pfsense.git
synced 2025-10-26 11:38:35 +00:00
80933129da
added warning that this will break communications with hosts not in dhcp table I fully expect we'll want to move this to it's own section at some point
556 lines
14 KiB
PHP
556 lines
14 KiB
PHP
<?php
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/*
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services.inc
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/* include all configuration functions */
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require_once("functions.inc");
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function services_dhcpd_configure() {
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global $config, $g;
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/* kill any running dhcpd */
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killbypid("{$g['varrun_path']}/dhcpd.pid");
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$syscfg = $config['system'];
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$dhcpdcfg = $config['dhcpd'];
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/* DHCP enabled on any interfaces? */
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$dhcpdenable = false;
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foreach ($dhcpdcfg as $dhcpif => $dhcpifconf) {
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if (isset($dhcpifconf['enable']) &&
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(($dhcpif == "lan") ||
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(isset($config['interfaces'][$dhcpif]['enable']) &&
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$config['interfaces'][$dhcpif]['if'] && (!$config['interfaces'][$dhcpif]['bridge']))))
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$dhcpdenable = true;
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}
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if (!$dhcpdenable)
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return 0;
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if ($g['booting'])
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echo "Starting DHCP service... ";
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else
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sleep(1);
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/* write dhcpd.conf */
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$fd = fopen("{$g['varetc_path']}/dhcpd.conf", "w");
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if (!$fd) {
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printf("Error: cannot open dhcpd.conf in services_dhcpd_configure().\n");
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return 1;
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}
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$dhcpdconf = <<<EOD
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option domain-name "{$syscfg['domain']}";
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default-lease-time 7200;
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max-lease-time 86400;
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authoritative;
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log-facility local7;
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ddns-update-style none;
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EOD;
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$dhcpdifs = array();
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foreach ($dhcpdcfg as $dhcpif => $dhcpifconf) {
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$ifcfg = $config['interfaces'][$dhcpif];
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if (!isset($dhcpifconf['enable']) ||
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(($dhcpif != "lan") &&
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(!isset($ifcfg['enable']) || !$ifcfg['if'] || $ifcfg['bridge'])))
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continue;
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$subnet = gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']);
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$subnetmask = gen_subnet_mask($ifcfg['subnet']);
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$dnscfg = "";
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if ($dhcpifconf['domain']) {
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$dnscfg .= " option domain-name \"{$dhcpifconf['domain']}\";\n";
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}
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if (is_array($dhcpifconf['dnsserver']) && ($dhcpifconf['dnsserver'][0])) {
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$dnscfg .= " option domain-name-servers " . join(",", $dhcpifconf['dnsserver']) . ";";
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} else if (isset($config['dnsmasq']['enable'])) {
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$dnscfg .= " option domain-name-servers " . $ifcfg['ipaddr'] . ";";
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} else if (is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
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$dnscfg .= " option domain-name-servers " . join(",", $syscfg['dnsserver']) . ";";
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}
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$dhcpdconf .= "subnet $subnet netmask $subnetmask {\n";
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$dhcpdconf .= " pool {\n";
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if (isset($dhcpifconf['denyunknown']))
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$dhcpdconf .= " deny unknown clients;\n";
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if ($dhcpifconf['gateway'])
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$routers = $dhcpifconf['gateway'];
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else
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$routers = $ifcfg['ipaddr'];
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$dhcpdconf .= <<<EOD
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range {$dhcpifconf['range']['from']} {$dhcpifconf['range']['to']};
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}
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option routers {$routers};
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$dnscfg
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EOD;
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if ($dhcpifconf['defaultleasetime'])
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$dhcpdconf .= " default-lease-time {$dhcpifconf['defaultleasetime']};\n";
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if ($dhcpifconf['maxleasetime'])
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$dhcpdconf .= " max-lease-time {$dhcpifconf['maxleasetime']};\n";
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if (is_array($dhcpifconf['winsserver']) && $dhcpifconf['winsserver'][0]) {
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$dhcpdconf .= " option netbios-name-servers " . join(",", $dhcpifconf['winsserver']) . ";\n";
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$dhcpdconf .= " option netbios-node-type 8;\n";
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}
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if ($dhcpifconf['next-server'])
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$dhcpdconf .= " next-server {$dhcpifconf['next-server']};\n";
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if ($dhcpifconf['filename'])
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$dhcpdconf .= " filename \"{$dhcpifconf['filename']}\";\n";
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$dhcpdconf .= <<<EOD
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}
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EOD;
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/* add static mappings */
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if (is_array($dhcpifconf['staticmap'])) {
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$i = 0;
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foreach ($dhcpifconf['staticmap'] as $sm) {
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$dhcpdconf .= <<<EOD
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host s_{$dhcpif}_{$i} {
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hardware ethernet {$sm['mac']};
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EOD;
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if ($sm['ipaddr'])
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$dhcpdconf .= " fixed-address {$sm['ipaddr']};\n";
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$dhcpdconf .= "}\n";
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$i++;
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}
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}
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$dhcpdifs[] = $ifcfg['if'];
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}
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fwrite($fd, $dhcpdconf);
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fclose($fd);
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/* create an empty leases database */
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touch("{$g['vardb_path']}/dhcpd.leases");
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/* fire up dhcpd */
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mwexec("/usr/local/sbin/dhcpd -cf {$g['varetc_path']}/dhcpd.conf " .
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join(" ", $dhcpdifs));
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if (!$g['booting']) {
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filter_configure();
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} else
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echo "done\n";
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return 0;
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}
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function interfaces_staticarp_configure($if) {
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global $config, $g;
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$ifcfg = $config['interfaces'][$if];
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/* Enable staticarp, if enabled */
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if(isset($config['dhcpd'][$if]['staticarp'])) {
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mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " staticarp " );
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mwexec("/usr/sbin/arp -ad > /dev/null 2>&1 ");
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if (is_array($config['dhcpd'][$if]['staticmap'])) {
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foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
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mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));
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}
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}
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} else {
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mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " -staticarp " );
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mwexec("/usr/sbin/arp -ad > /dev/null 2>&1 ");
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}
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return 0;
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}
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function services_dhcrelay_configure() {
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global $config, $g;
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/* kill any running dhcrelay */
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killbypid("{$g['varrun_path']}/dhcrelay.pid");
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$dhcrelaycfg = $config['dhcrelay'];
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/* DHCPRelay enabled on any interfaces? */
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$dhcrelayenable = false;
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foreach ($dhcrelaycfg as $dhcrelayif => $dhcrelayifconf) {
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if (isset($dhcrelayifconf['enable']) &&
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(($dhcrelayif == "lan") ||
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(isset($config['interfaces'][$dhcrelayif]['enable']) &&
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$config['interfaces'][$dhcrelayif]['if'] && (!$config['interfaces'][$dhcrelayif]['bridge']))))
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$dhcrelayenable = true;
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}
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if (!$dhcrelayenable)
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return 0;
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if ($g['booting'])
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echo "Starting DHCP relay service... ";
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else
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sleep(1);
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$dhcrelayifs = array();
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foreach ($dhcrelaycfg as $dhcrelayif => $dhcrelayifconf) {
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$ifcfg = $config['interfaces'][$dhcrelayif];
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if (!isset($dhcrelayifconf['enable']) ||
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(($dhcrelayif != "lan") &&
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(!isset($ifcfg['enable']) || !$ifcfg['if'] || $ifcfg['bridge'])))
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continue;
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$dhcrelayifs[] = $ifcfg['if'];
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}
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/* In order for the relay to work, it needs to be active on the
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interface in which the destination server sits */
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foreach ($config['interfaces'] as $ifname) {
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$subnet = $ifname['ipaddr'] . "/" . $ifname['subnet'];
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if (ip_in_subnet($dhcrelaycfg['server'],$subnet))
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$destif = $ifname['if'];
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}
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if (!isset($destif))
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$destif = $config['interfaces']['wan']['if'];
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$dhcrelayifs[] = $destif;
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$dhcrelayifs = array_unique($dhcrelayifs);
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/* fire up dhcrelay */
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$cmd = "/usr/local/sbin/dhcrelay -i " . join(" -i ", $dhcrelayifs);
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if (isset($dhcrelaycfg['agentoption']))
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$cmd .= " -a -m replace";
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$cmd .= " {$dhcrelaycfg['server']}";
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mwexec($cmd);
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if (!$g['booting']) {
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filter_configure();
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} else
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echo "done\n";
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return 0;
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}
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function services_dyndns_reset() {
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global $config, $g;
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if (file_exists("{$g['vardb_path']}/ez-ipupdate.cache")) {
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unlink("{$g['vardb_path']}/ez-ipupdate.cache");
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}
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if (file_exists("{$g['conf_path']}/ez-ipupdate.cache")) {
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conf_mount_rw();
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unlink("{$g['conf_path']}/ez-ipupdate.cache");
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conf_mount_ro();
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}
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return 0;
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}
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function services_dyndns_configure() {
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global $config, $g;
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/* kill any running ez-ipupdate */
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/* ez-ipupdate needs SIGQUIT instead of SIGTERM */
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sigkillbypid("{$g['varrun_path']}/ez-ipupdate.pid", "QUIT");
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$dyndnscfg = $config['dyndns'];
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$wancfg = $config['interfaces']['wan'];
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if (isset($dyndnscfg['enable'])) {
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if ($g['booting'])
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echo "Starting DynDNS client... ";
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else
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sleep(1);
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/* determine WAN interface name */
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$wanif = get_real_wan_interface();
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/* write ez-ipupdate.conf */
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$fd = fopen("{$g['varetc_path']}/ez-ipupdate.conf", "w");
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if (!$fd) {
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printf("Error: cannot open ez-ipupdate.conf in services_dyndns_configure().\n");
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return 1;
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}
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$ezipupdateconf = <<<EOD
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service-type={$dyndnscfg['type']}
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user={$dyndnscfg['username']}:{$dyndnscfg['password']}
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host={$dyndnscfg['host']}
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interface=$wanif
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max-interval=2073600
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pid-file={$g['varrun_path']}/ez-ipupdate.pid
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cache-file={$g['vardb_path']}/ez-ipupdate.cache
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execute=/etc/rc.dyndns.storecache
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daemon
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EOD;
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/* enable MX? */
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if ($dyndnscfg['mx']) {
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$ezipupdateconf .= "mx={$dyndnscfg['mx']}\n";
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}
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/* enable wildcards? */
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if (isset($dyndnscfg['wildcard'])) {
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$ezipupdateconf .= "wildcard\n";
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}
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fwrite($fd, $ezipupdateconf);
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fclose($fd);
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/* if we're booting, copy the cache file from /conf */
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if ($g['booting']) {
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if (file_exists("{$g['conf_path']}/ez-ipupdate.cache")) {
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copy("{$g['conf_path']}/ez-ipupdate.cache", "{$g['vardb_path']}/ez-ipupdate.cache");
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}
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}
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/* run ez-ipupdate */
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mwexec("/usr/local/bin/ez-ipupdate -c {$g['varetc_path']}/ez-ipupdate.conf");
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if ($g['booting'])
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echo "done\n";
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}
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return 0;
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}
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function services_dnsmasq_configure() {
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global $config, $g;
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/* kill any running dnsmasq */
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sigkillbypid("{$g['varrun_path']}/dnsmasq.pid", "TERM");
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if (isset($config['dnsmasq']['enable'])) {
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if ($g['booting'])
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echo "Starting DNS forwarder... ";
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else
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sleep(1);
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/* generate hosts file */
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system_hosts_generate();
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$args = "";
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if (isset($config['dnsmasq']['regdhcp'])) {
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$args .= " -l {$g['vardb_path']}/dhcpd.leases" .
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" -s {$config['system']['domain']}";
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}
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/* run dnsmasq */
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mwexec("/usr/local/sbin/dnsmasq {$args}");
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if ($g['booting'])
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echo "done\n";
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}
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if (!$g['booting']) {
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services_dhcpd_configure();
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}
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return 0;
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}
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function services_snmpd_configure() {
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global $config, $g;
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/* kill any running snmpd */
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sigkillbypid("{$g['varrun_path']}/snmpd.pid", "TERM");
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if (isset($config['snmpd']['enable'])) {
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if ($g['booting'])
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echo "Starting SNMP agent... ";
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/* generate snmpd.conf */
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$fd = fopen("{$g['varetc_path']}/snmpd.conf", "w");
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if (!$fd) {
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printf("Error: cannot open snmpd.conf in services_snmpd_configure().\n");
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return 1;
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}
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$snmpdconf = <<<EOD
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syslocation "{$config['snmpd']['syslocation']}"
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syscontact "{$config['snmpd']['syscontact']}"
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rocommunity "{$config['snmpd']['rocommunity']}"
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EOD;
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fwrite($fd, $snmpdconf);
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fclose($fd);
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/* run snmpd */
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mwexec("/usr/local/sbin/snmpd -c {$g['varetc_path']}/snmpd.conf" .
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" -P {$g['varrun_path']}/snmpd.pid");
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if ($g['booting'])
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echo "done\n";
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}
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return 0;
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}
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function services_proxyarp_configure() {
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global $config, $g;
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/* kill any running choparp */
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killbyname("choparp");
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if (is_array($config['proxyarp']) && count($config['proxyarp'])) {
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$paa = array();
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/* group by interface */
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foreach ($config['proxyarp']['proxyarpnet'] as $paent) {
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if ($paent['interface'])
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$if = $paent['interface'];
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else
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$if = "wan";
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if (!is_array($paa[$if]))
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$paa[$if] = array();
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$paa[$if][] = $paent;
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}
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foreach ($paa as $paif => $paents) {
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if ($paif == "wan" && !(is_ipaddr($config['interfaces']['wan']['ipaddr']) ||
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($config['interfaces']['wan']['ipaddr'] == "dhcp") ||
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($config['interfaces']['wan']['ipaddr'] == "bigpond")))
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continue;
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$args = $config['interfaces'][$paif]['if'] . " auto";
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foreach ($paents as $paent) {
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if (isset($paent['network']))
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$args .= " " . escapeshellarg($paent['network']);
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else if (isset($paent['range']))
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$args .= " " . escapeshellarg($paent['range']['from'] . "-" .
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$paent['range']['to']);
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}
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mwexec_bg("/usr/local/sbin/choparp " . $args);
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}
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}
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}
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function services_dnsupdate_process() {
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global $config, $g;
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/* Dynamic DNS updating active? */
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if (isset($config['dnsupdate']['enable'])) {
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$wanip = get_current_wan_address();
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if ($wanip) {
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$keyname = $config['dnsupdate']['keyname'];
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/* trailing dot */
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if (substr($keyname, -1) != ".")
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$keyname .= ".";
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$hostname = $config['dnsupdate']['host'];
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/* trailing dot */
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if (substr($hostname, -1) != ".")
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$hostname .= ".";
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/* write private key file
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this is dumb - public and private keys are the same for HMAC-MD5,
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but nsupdate insists on having both */
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$fd = fopen("{$g['varetc_path']}/K{$keyname}+157+00000.private", "w");
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$privkey .= <<<EOD
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Private-key-format: v1.2
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Algorithm: 157 (HMAC)
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Key: {$config['dnsupdate']['keydata']}
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EOD;
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fwrite($fd, $privkey);
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fclose($fd);
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/* write public key file */
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if ($config['dnsupdate']['keytype'] == "zone") {
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$flags = 257;
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$proto = 3;
|
|
} else if ($config['dnsupdate']['keytype'] == "host") {
|
|
$flags = 513;
|
|
$proto = 3;
|
|
} else if ($config['dnsupdate']['keytype'] == "user") {
|
|
$flags = 0;
|
|
$proto = 2;
|
|
}
|
|
|
|
$fd = fopen("{$g['varetc_path']}/K{$keyname}+157+00000.key", "w");
|
|
fwrite($fd, "{$keyname} IN KEY {$flags} {$proto} 157 {$config['dnsupdate']['keydata']}\n");
|
|
fclose($fd);
|
|
|
|
/* generate update instructions */
|
|
$upinst = "update delete {$config['dnsupdate']['host']} A\n";
|
|
$upinst .= "update add {$config['dnsupdate']['host']} {$config['dnsupdate']['ttl']} A {$wanip}\n";
|
|
$upinst .= "\n"; /* mind that trailing newline! */
|
|
|
|
$fd = fopen("{$g['varetc_path']}/nsupdatecmds", "w");
|
|
fwrite($fd, $upinst);
|
|
fclose($fd);
|
|
|
|
/* invoke nsupdate */
|
|
$cmd = "/usr/sbin/nsupdate -k {$g['varetc_path']}:{$keyname}";
|
|
if (isset($config['dnsupdate']['usetcp']))
|
|
$cmd .= " -v";
|
|
$cmd .= " {$g['varetc_path']}/nsupdatecmds";
|
|
|
|
mwexec_bg($cmd);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
?>
|