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<?php
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/* $Id$ */
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/*
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vpn.inc
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Copyright (C) 2004 Scott Ullrich
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All rights reserved.
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originally 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 vpn_ipsec_failover_configure() {
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global $config, $g;
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/* is failover vpn enabled? */
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if(!isset($config['ipsec']['failover']['enable']))
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return;
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$sasyncd = "";
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if($config['ipsec']['failover']['peer'])
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$sasyncd .= "peer {$config['ipsec']['failover']['peer']}\n";
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if($config['ipsec']['failover']['interface'])
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$sasyncd .= "carp interface {$config['ipsec']['failover']['interface']}\n";
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if($config['ipsec']['failover']['sharedkey'])
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$sasyncd .= "sharedkey {$config['ipsec']['failover']['sharedkey']}\n";
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if($config['ipsec']['failover']['mode'])
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$sasyncd .= "mode {$config['ipsec']['failover']['mode']}\n";
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if($config['ipsec']['failover']['listenon'])
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$sasyncd .= "listen on {$config['ipsec']['failover']['listenon']}\n";
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if($config['ipsec']['failover']['flushmodesync'])
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$sasyncd .= "flushmode sync {$config['ipsec']['failover']['flushmodesync']}\n";
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$fd = fopen("{$g['varetc_path']}/sasyncd.conf", "w");
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fwrite($fd, $sasyncd);
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fclose($fd);
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chmod("{$g['varetc_path']}/sasyncd.conf", 0600);
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/* launch sasyncd, oh wise one */
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mwexec("/usr/local/sbin/sasyncd");
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}
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function vpn_ipsec_configure($ipchg = false) {
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global $config, $g;
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$curwanip = get_current_wan_address();
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/* setup for failover ipsec */
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if($config['ipsec']['failover']['ip'] <> "")
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$curwanip = $config['ipsec']['failover']['ip'];
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vpn_ipsec_failover_configure();
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$syscfg = $config['system'];
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$ipseccfg = $config['ipsec'];
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$lancfg = $config['interfaces']['lan'];
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$lanip = $lancfg['ipaddr'];
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$lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']);
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$lansn = $lancfg['subnet'];
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if ($g['booting']) {
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if (!isset($ipseccfg['enable']))
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return 0;
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echo "Configuring IPsec VPN... ";
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} else {
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/* kill racoon */
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killbypid("{$g['varrun_path']}/racoon.pid");
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/* wait for process to die */
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sleep(2);
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/* send a SIGKILL to be sure */
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sigkillbypid("{$g['varrun_path']}/racoon.pid", "KILL");
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}
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/* flush SPD and SAD */
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mwexec("/usr/sbin/setkey -FP");
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mwexec("/usr/sbin/setkey -F");
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/* prefer old SAs only for 30 seconds, then use the new one */
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if (!isset($config['ipsec']['preferoldsa']))
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mwexec("/sbin/sysctl -w net.key.preferred_oldsa=-30");
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else
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mwexec("/sbin/sysctl -w net.key.preferred_oldsa=1");
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if (isset($ipseccfg['enable'])) {
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if (!$curwanip) {
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/* IP address not configured yet, exit */
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if ($g['booting'])
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echo "done\n";
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return 0;
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}
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if ((is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel'])) ||
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isset($ipseccfg['mobileclients']['enable'])) {
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if (is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel'])) {
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/* generate spd.conf */
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$fd = fopen("{$g['varetc_path']}/spd.conf", "w");
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if (!$fd) {
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printf("Error: cannot open spd.conf in vpn_ipsec_configure().\n");
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return 1;
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}
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$spdconf = "";
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$spdconf .= "spdadd {$lansa}/{$lansn} {$lanip}/32 any -P in none;\n";
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$spdconf .= "spdadd {$lanip}/32 {$lansa}/{$lansn} any -P out none;\n";
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foreach ($ipseccfg['tunnel'] as $tunnel) {
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if (isset($tunnel['disabled']))
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continue;
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$ep = vpn_endpoint_determine($tunnel, $curwanip);
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if (!$ep)
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continue;
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vpn_localnet_determine($tunnel['local-subnet'], $sa, $sn);
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if(isset($tunnel['creategif'])) {
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$number_of_gifs = find_last_gif_device();
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$number_of_gifs++;
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$curwanip = get_current_wan_address();
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if($config['ipsec']['failover']['ip'] <> "")
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$curwanip = $config['ipsec']['failover']['ip'];
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mwexec("/sbin/ifconfig gif" . $number_of_gifs . " tunnel" . $curwanip . " " . $tunnel['remote-gateway']);
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mwexec("/sbin/ifconfig gif" . $number_of_gifs . " {$lansa}/{$lansn} {$lanip}/32");
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}
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$spdconf .= "spdadd {$sa}/{$sn} " .
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"{$tunnel['remote-subnet']} any -P out ipsec " .
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"{$tunnel['p2']['protocol']}/tunnel/{$ep}-" .
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"{$tunnel['remote-gateway']}/unique;\n";
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$spdconf .= "spdadd {$tunnel['remote-subnet']} " .
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"{$sa}/{$sn} any -P in ipsec " .
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"{$tunnel['p2']['protocol']}/tunnel/{$tunnel['remote-gateway']}-" .
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"{$ep}/unique;\n";
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}
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fwrite($fd, $spdconf);
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fclose($fd);
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/* load SPD */
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mwexec("/usr/sbin/setkey -c < {$g['varetc_path']}/spd.conf");
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}
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/* generate racoon.conf */
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$fd = fopen("{$g['varetc_path']}/racoon.conf", "w");
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if (!$fd) {
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printf("Error: cannot open racoon.conf in vpn_ipsec_configure().\n");
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return 1;
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}
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if($config['ipsec']['failover']['ip'] <> "") {
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$interface_ip = $config['ipsec']['failover']['ip'];
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$racoonconf .= <<<EOD
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listen {
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isakmp {$interface_ip} [500];
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}
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EOD;
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}
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$racoonconf .= "path pre_shared_key \"{$g['varetc_path']}/psk.txt\";\n\n";
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$racoonconf .= "path certificate \"{$g['varetc_path']}\";\n\n";
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/* generate CA certificates files */
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$cacertnum = 0;
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if (is_array($ipseccfg['cacert']) && count($ipseccfg['cacert']))
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foreach ($ipseccfg['cacert'] as $cacert) {
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++$cacertnum;
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if (isset($cacert['cert'])) {
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$cert = base64_decode($cacert['cert']);
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$x509cert = openssl_x509_parse(openssl_x509_read($cert));
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if(is_array($x509cert) && isset($x509cert['hash'])) {
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$fd1 = fopen("{$g['varetc_path']}/{$x509cert['hash']}.0", "w");
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if (!$fd1) {
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printf("Error: cannot open {$x509cert['hash']}.0 in vpn.\n");
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return 1;
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}
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chmod("{$g['varetc_path']}/{$x509cert['hash']}.0", 0600);
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fwrite($fd1, $cert);
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fclose($fd1);
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}
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}
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}
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$tunnelnumber = 0;
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if (is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel']))
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foreach ($ipseccfg['tunnel'] as $tunnel) {
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++$tunnelnumber;
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if (isset($tunnel['disabled']))
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continue;
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$ep = vpn_endpoint_determine($tunnel, $curwanip);
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if (!$ep)
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continue;
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vpn_localnet_determine($tunnel['local-subnet'], $sa, $sn);
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if (isset($tunnel['p1']['myident']['myaddress'])) {
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$myidentt = "address";
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$myident = $ep;
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} else if (isset($tunnel['p1']['myident']['address'])) {
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$myidentt = "address";
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$myident = $tunnel['p1']['myident']['address'];
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} else if (isset($tunnel['p1']['myident']['fqdn'])) {
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$myidentt = "fqdn";
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$myident = $tunnel['p1']['myident']['fqdn'];
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} else if (isset($tunnel['p1']['myident']['ufqdn'])) {
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$myidentt = "user_fqdn";
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$myident = $tunnel['p1']['myident']['ufqdn'];
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}
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if (isset($tunnel['p1']['authentication_method'])) {
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$authmethod = $tunnel['p1']['authentication_method'];
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} else {$authmethod = 'pre_shared_key';}
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$certline = '';
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if ($authmethod == 'rsasig') {
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if ($tunnel['p1']['cert'] && $tunnel['p1']['private-key']) {
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$cert = base64_decode($tunnel['p1']['cert']);
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$private_key = base64_decode($tunnel['p1']['private-key']);
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} else {
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/* null certificate/key */
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$cert = '';
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$private_key = '';
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}
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if ($tunnel['p1']['peercert'])
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$peercert = base64_decode($tunnel['p1']['peercert']);
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else
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$peercert = '';
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$fd1 = fopen("{$g['varetc_path']}/server{$tunnelnumber}-signed.pem", "w");
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if (!$fd1) {
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printf("Error: cannot open server{$tunnelnumber}-signed.pem in vpn.\n");
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return 1;
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}
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chmod("{$g['varetc_path']}/server{$tunnelnumber}-signed.pem", 0600);
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fwrite($fd1, $cert);
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fclose($fd1);
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$fd1 = fopen("{$g['varetc_path']}/server{$tunnelnumber}-key.pem", "w");
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if (!$fd1) {
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printf("Error: cannot open server{$tunnelnumber}-key.pem in vpn.\n");
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return 1;
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}
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chmod("{$g['varetc_path']}/server{$tunnelnumber}-key.pem", 0600);
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fwrite($fd1, $private_key);
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fclose($fd1);
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$certline = "certificate_type x509 \"server{$tunnelnumber}-signed.pem\" \"server{$tunnelnumber}-key.pem\";";
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if ($peercert!=''){
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$fd1 = fopen("{$g['varetc_path']}/peer{$tunnelnumber}-signed.pem", "w");
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if (!$fd1) {
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printf("Error: cannot open server{$tunnelnumber}-signed.pem in vpn.\n");
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return 1;
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299
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}
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chmod("{$g['varetc_path']}/peer{$tunnelnumber}-signed.pem", 0600);
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fwrite($fd1, $peercert);
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fclose($fd1);
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$certline .= <<<EOD
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peers_certfile "peer{$tunnelnumber}-signed.pem";
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EOD;
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}
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}
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$racoonconf .= <<<EOD
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remote {$tunnel['remote-gateway']} \{
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exchange_mode {$tunnel['p1']['mode']};
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my_identifier {$myidentt} "{$myident}";
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{$certline}
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peers_identifier address {$tunnel['remote-gateway']};
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initial_contact on;
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support_proxy on;
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317
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proposal_check obey;
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318
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proposal \{
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encryption_algorithm {$tunnel['p1']['encryption-algorithm']};
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321
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hash_algorithm {$tunnel['p1']['hash-algorithm']};
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authentication_method {$authmethod};
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dh_group {$tunnel['p1']['dhgroup']};
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324
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EOD;
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if ($tunnel['p1']['lifetime'])
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$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
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328
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329
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$racoonconf .= " }\n";
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if ($tunnel['p1']['lifetime'])
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$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
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333
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334
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$racoonconf .= "}\n\n";
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335
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$p2ealgos = join(",", $tunnel['p2']['encryption-algorithm-option']);
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$p2halgos = join(",", $tunnel['p2']['hash-algorithm-option']);
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338
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339
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$racoonconf .= <<<EOD
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340
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sainfo address {$sa}/{$sn} any address {$tunnel['remote-subnet']} any \{
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341
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encryption_algorithm {$p2ealgos};
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342
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authentication_algorithm {$p2halgos};
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343
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compression_algorithm deflate;
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344
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EOD;
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346
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347
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if ($tunnel['p2']['pfsgroup'])
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348
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$racoonconf .= " pfs_group {$tunnel['p2']['pfsgroup']};\n";
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349
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350
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if ($tunnel['p2']['lifetime'])
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351
|
$racoonconf .= " lifetime time {$tunnel['p2']['lifetime']} secs;\n";
|
|
352
|
|
|
353
|
$racoonconf .= "}\n\n";
|
|
354
|
}
|
|
355
|
|
|
356
|
/* mobile clients? */
|
|
357
|
if (isset($ipseccfg['mobileclients']['enable'])) {
|
|
358
|
|
|
359
|
$tunnel = $ipseccfg['mobileclients'];
|
|
360
|
|
|
361
|
if (isset($tunnel['p1']['myident']['myaddress'])) {
|
|
362
|
$myidentt = "address";
|
|
363
|
$myident = $curwanip;
|
|
364
|
} else if (isset($tunnel['p1']['myident']['address'])) {
|
|
365
|
$myidentt = "address";
|
|
366
|
$myident = $tunnel['p1']['myident']['address'];
|
|
367
|
} else if (isset($tunnel['p1']['myident']['fqdn'])) {
|
|
368
|
$myidentt = "fqdn";
|
|
369
|
$myident = $tunnel['p1']['myident']['fqdn'];
|
|
370
|
} else if (isset($tunnel['p1']['myident']['ufqdn'])) {
|
|
371
|
$myidentt = "user_fqdn";
|
|
372
|
$myident = $tunnel['p1']['myident']['ufqdn'];
|
|
373
|
}
|
|
374
|
|
|
375
|
if (isset($tunnel['p1']['authentication_method'])) {
|
|
376
|
$authmethod = $tunnel['p1']['authentication_method'];
|
|
377
|
} else {$authmethod = 'pre_shared_key';}
|
|
378
|
|
|
379
|
$certline = '';
|
|
380
|
if ($authmethod == 'rsasig') {
|
|
381
|
if ($tunnel['p1']['cert'] && $tunnel['p1']['private-key']) {
|
|
382
|
$cert = base64_decode($tunnel['p1']['cert']);
|
|
383
|
$private_key = base64_decode($tunnel['p1']['private-key']);
|
|
384
|
} else {
|
|
385
|
/* null certificate/key */
|
|
386
|
$cert = '';
|
|
387
|
$private_key = '';
|
|
388
|
}
|
|
389
|
|
|
390
|
if ($tunnel['p1']['peercert'])
|
|
391
|
$peercert = base64_decode($tunnel['p1']['peercert']);
|
|
392
|
else
|
|
393
|
$peercert = '';
|
|
394
|
|
|
395
|
$fd1 = fopen("{$g['varetc_path']}/server-mobile{$tunnelnumber}-signed.pem", "w");
|
|
396
|
if (!$fd1) {
|
|
397
|
printf("Error: cannot open server-mobile{$tunnelnumber}-signed.pem in vpn.\n");
|
|
398
|
return 1;
|
|
399
|
}
|
|
400
|
chmod("{$g['varetc_path']}/server-mobile{$tunnelnumber}-signed.pem", 0600);
|
|
401
|
fwrite($fd1, $cert);
|
|
402
|
fclose($fd1);
|
|
403
|
|
|
404
|
$fd1 = fopen("{$g['varetc_path']}/server-mobile{$tunnelnumber}-key.pem", "w");
|
|
405
|
if (!$fd1) {
|
|
406
|
printf("Error: cannot open server-mobile{$tunnelnumber}-key.pem in vpn.\n");
|
|
407
|
return 1;
|
|
408
|
}
|
|
409
|
chmod("{$g['varetc_path']}/server-mobile{$tunnelnumber}-key.pem", 0600);
|
|
410
|
fwrite($fd1, $private_key);
|
|
411
|
fclose($fd1);
|
|
412
|
|
|
413
|
$certline = "certificate_type x509 \"server-mobile{$tunnelnumber}-signed.pem\" \"server-mobile{$tunnelnumber}-key.pem\";";
|
|
414
|
}
|
|
415
|
$racoonconf .= <<<EOD
|
|
416
|
remote anonymous \{
|
|
417
|
exchange_mode {$tunnel['p1']['mode']};
|
|
418
|
my_identifier {$myidentt} "{$myident}";
|
|
419
|
{$certline}
|
|
420
|
initial_contact on;
|
|
421
|
passive on;
|
|
422
|
generate_policy on;
|
|
423
|
support_proxy on;
|
|
424
|
proposal_check obey;
|
|
425
|
|
|
426
|
proposal \{
|
|
427
|
encryption_algorithm {$tunnel['p1']['encryption-algorithm']};
|
|
428
|
hash_algorithm {$tunnel['p1']['hash-algorithm']};
|
|
429
|
authentication_method {$authmethod};
|
|
430
|
dh_group {$tunnel['p1']['dhgroup']};
|
|
431
|
|
|
432
|
EOD;
|
|
433
|
if ($tunnel['p1']['lifetime'])
|
|
434
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
435
|
|
|
436
|
$racoonconf .= " }\n";
|
|
437
|
|
|
438
|
if ($tunnel['p1']['lifetime'])
|
|
439
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
440
|
|
|
441
|
$racoonconf .= "}\n\n";
|
|
442
|
|
|
443
|
$p2ealgos = join(",", $tunnel['p2']['encryption-algorithm-option']);
|
|
444
|
$p2halgos = join(",", $tunnel['p2']['hash-algorithm-option']);
|
|
445
|
|
|
446
|
$racoonconf .= <<<EOD
|
|
447
|
sainfo anonymous \{
|
|
448
|
encryption_algorithm {$p2ealgos};
|
|
449
|
authentication_algorithm {$p2halgos};
|
|
450
|
compression_algorithm deflate;
|
|
451
|
|
|
452
|
EOD;
|
|
453
|
|
|
454
|
if ($tunnel['p2']['pfsgroup'])
|
|
455
|
$racoonconf .= " pfs_group {$tunnel['p2']['pfsgroup']};\n";
|
|
456
|
|
|
457
|
if ($tunnel['p2']['lifetime'])
|
|
458
|
$racoonconf .= " lifetime time {$tunnel['p2']['lifetime']} secs;\n";
|
|
459
|
|
|
460
|
$racoonconf .= "}\n\n";
|
|
461
|
}
|
|
462
|
|
|
463
|
fwrite($fd, $racoonconf);
|
|
464
|
fclose($fd);
|
|
465
|
|
|
466
|
/* generate psk.txt */
|
|
467
|
$fd = fopen("{$g['varetc_path']}/psk.txt", "w");
|
|
468
|
if (!$fd) {
|
|
469
|
printf("Error: cannot open psk.txt in vpn_ipsec_configure().\n");
|
|
470
|
return 1;
|
|
471
|
}
|
|
472
|
|
|
473
|
$pskconf = "";
|
|
474
|
|
|
475
|
if (is_array($ipseccfg['tunnel'])) {
|
|
476
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
477
|
if (isset($tunnel['disabled']))
|
|
478
|
continue;
|
|
479
|
$pskconf .= "{$tunnel['remote-gateway']} {$tunnel['p1']['pre-shared-key']}\n";
|
|
480
|
}
|
|
481
|
}
|
|
482
|
|
|
483
|
/* add PSKs for mobile clients */
|
|
484
|
if (is_array($ipseccfg['mobilekey'])) {
|
|
485
|
foreach ($ipseccfg['mobilekey'] as $key) {
|
|
486
|
$pskconf .= "{$key['ident']} {$key['pre-shared-key']}\n";
|
|
487
|
}
|
|
488
|
}
|
|
489
|
|
|
490
|
fwrite($fd, $pskconf);
|
|
491
|
fclose($fd);
|
|
492
|
chmod("{$g['varetc_path']}/psk.txt", 0600);
|
|
493
|
|
|
494
|
/* start racoon */
|
|
495
|
echo " racoon ";
|
|
496
|
mwexec("/usr/local/sbin/racoon -d -f {$g['varetc_path']}/racoon.conf");
|
|
497
|
|
|
498
|
if (is_array($ipseccfg['tunnel'])) {
|
|
499
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
500
|
if (isset($tunnel['auto'])) {
|
|
501
|
$remotehost = substr($tunnel['remote-subnet'],0,strpos($tunnel['remote-subnet'],"/"));
|
|
502
|
$srchost = vpn_endpoint_determine($tunnel, $curwanip);
|
|
503
|
if ($srchost)
|
|
504
|
mwexec_bg("/sbin/ping -c 5 -S {$srchost} {$remotehost}");
|
|
505
|
}
|
|
506
|
}
|
|
507
|
}
|
|
508
|
}
|
|
509
|
}
|
|
510
|
|
|
511
|
if (!$g['booting']) {
|
|
512
|
/* set the reload filter dity flag */
|
|
513
|
touch("{$g['tmp_path']}/filter_boot_dirty");
|
|
514
|
}
|
|
515
|
|
|
516
|
if ($g['booting'])
|
|
517
|
echo "done\n";
|
|
518
|
|
|
519
|
return 0;
|
|
520
|
}
|
|
521
|
|
|
522
|
function vpn_pptpd_configure() {
|
|
523
|
global $config, $g;
|
|
524
|
|
|
525
|
$syscfg = $config['system'];
|
|
526
|
$pptpdcfg = $config['pptpd'];
|
|
527
|
|
|
528
|
if ($g['booting']) {
|
|
529
|
if (!$pptpdcfg['mode'] || ($pptpdcfg['mode'] == "off"))
|
|
530
|
return 0;
|
|
531
|
|
|
532
|
echo "Configuring PPTP VPN service... ";
|
|
533
|
} else {
|
|
534
|
/* kill mpd */
|
|
535
|
killbypid("{$g['varrun_path']}/mpd-vpn.pid");
|
|
536
|
|
|
537
|
/* wait for process to die */
|
|
538
|
sleep(2);
|
|
539
|
|
|
540
|
/* remove mpd.conf, if it exists */
|
|
541
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.conf");
|
|
542
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.links");
|
|
543
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.secret");
|
|
544
|
}
|
|
545
|
|
|
546
|
/* make sure mpd-vpn directory exists */
|
|
547
|
if (!file_exists("{$g['varetc_path']}/mpd-vpn"))
|
|
548
|
mkdir("{$g['varetc_path']}/mpd-vpn");
|
|
549
|
|
|
550
|
switch ($pptpdcfg['mode']) {
|
|
551
|
|
|
552
|
case 'server':
|
|
553
|
|
|
554
|
/* write mpd.conf */
|
|
555
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.conf", "w");
|
|
556
|
if (!$fd) {
|
|
557
|
printf("Error: cannot open mpd.conf in vpn_pptpd_configure().\n");
|
|
558
|
return 1;
|
|
559
|
}
|
|
560
|
|
|
561
|
$mpdconf = <<<EOD
|
|
562
|
pptpd:
|
|
563
|
|
|
564
|
EOD;
|
|
565
|
|
|
566
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
567
|
$mpdconf .= " load pt{$i}\n";
|
|
568
|
}
|
|
569
|
|
|
570
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
571
|
|
|
572
|
$clientip = long2ip(ip2long($pptpdcfg['remoteip']) + $i);
|
|
573
|
$ngif = "ng" . ($i+1);
|
|
574
|
|
|
575
|
$mpdconf .= <<<EOD
|
|
576
|
|
|
577
|
pt{$i}:
|
|
578
|
new -i {$ngif} pt{$i} pt{$i}
|
|
579
|
set ipcp ranges {$pptpdcfg['localip']}/32 {$clientip}/32
|
|
580
|
load pts
|
|
581
|
|
|
582
|
EOD;
|
|
583
|
}
|
|
584
|
|
|
585
|
$mpdconf .= <<<EOD
|
|
586
|
|
|
587
|
pts:
|
|
588
|
set iface disable on-demand
|
|
589
|
set iface enable proxy-arp
|
|
590
|
set iface enable tcpmssfix
|
|
591
|
set iface idle 1800
|
|
592
|
set iface up-script /usr/local/sbin/vpn-linkup
|
|
593
|
set iface down-script /usr/local/sbin/vpn-linkdown
|
|
594
|
set bundle enable multilink
|
|
595
|
set bundle enable crypt-reqd
|
|
596
|
set link yes acfcomp protocomp
|
|
597
|
set link no pap chap
|
|
598
|
set link enable chap-msv2
|
|
599
|
set link mtu 1460
|
|
600
|
set link keep-alive 10 60
|
|
601
|
set ipcp yes vjcomp
|
|
602
|
set bundle enable compression
|
|
603
|
set ccp yes mppc
|
|
604
|
set ccp yes mpp-e128
|
|
605
|
set ccp yes mpp-stateless
|
|
606
|
|
|
607
|
EOD;
|
|
608
|
|
|
609
|
if (!isset($pptpdcfg['req128'])) {
|
|
610
|
$mpdconf .= <<<EOD
|
|
611
|
set ccp yes mpp-e40
|
|
612
|
set ccp yes mpp-e56
|
|
613
|
|
|
614
|
EOD;
|
|
615
|
}
|
|
616
|
|
|
617
|
if (is_array($pptpdcfg['dnsserver']) && ($pptpdcfg['dnsserver'][0])) {
|
|
618
|
$mpdconf .= " set ipcp dns " . join(" ", $pptpdcfg['dnsserver']) . "\n";
|
|
619
|
} else if (isset($config['dnsmasq']['enable'])) {
|
|
620
|
$mpdconf .= " set ipcp dns " . $config['interfaces']['lan']['ipaddr'];
|
|
621
|
if ($syscfg['dnsserver'][0])
|
|
622
|
$mpdconf .= " " . $syscfg['dnsserver'][0];
|
|
623
|
$mpdconf .= "\n";
|
|
624
|
} else if (is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
|
|
625
|
$mpdconf .= " set ipcp dns " . join(" ", $syscfg['dnsserver']) . "\n";
|
|
626
|
}
|
|
627
|
|
|
628
|
if (isset($pptpdcfg['radius']['enable'])) {
|
|
629
|
$mpdconf .= <<<EOD
|
|
630
|
set radius server {$pptpdcfg['radius']['server']} "{$pptpdcfg['radius']['secret']}"
|
|
631
|
set radius retries 3
|
|
632
|
set radius timeout 10
|
|
633
|
set bundle enable radius-auth
|
|
634
|
set bundle disable radius-fallback
|
|
635
|
|
|
636
|
EOD;
|
|
637
|
|
|
638
|
if (isset($pptpdcfg['radius']['accounting'])) {
|
|
639
|
$mpdconf .= <<<EOD
|
|
640
|
set bundle enable radius-acct
|
|
641
|
|
|
642
|
EOD;
|
|
643
|
}
|
|
644
|
}
|
|
645
|
|
|
646
|
fwrite($fd, $mpdconf);
|
|
647
|
fclose($fd);
|
|
648
|
|
|
649
|
/* write mpd.links */
|
|
650
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.links", "w");
|
|
651
|
if (!$fd) {
|
|
652
|
printf("Error: cannot open mpd.links in vpn_pptpd_configure().\n");
|
|
653
|
return 1;
|
|
654
|
}
|
|
655
|
|
|
656
|
$mpdlinks = "";
|
|
657
|
|
|
658
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
659
|
$mpdlinks .= <<<EOD
|
|
660
|
|
|
661
|
pt{$i}:
|
|
662
|
set link type pptp
|
|
663
|
set pptp enable incoming
|
|
664
|
set pptp disable originate
|
|
665
|
set pptp disable windowing
|
|
666
|
set pptp self 127.0.0.1
|
|
667
|
|
|
668
|
EOD;
|
|
669
|
}
|
|
670
|
|
|
671
|
fwrite($fd, $mpdlinks);
|
|
672
|
fclose($fd);
|
|
673
|
|
|
674
|
/* write mpd.secret */
|
|
675
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.secret", "w");
|
|
676
|
if (!$fd) {
|
|
677
|
printf("Error: cannot open mpd.secret in vpn_pptpd_configure().\n");
|
|
678
|
return 1;
|
|
679
|
}
|
|
680
|
|
|
681
|
$mpdsecret = "";
|
|
682
|
|
|
683
|
if (is_array($pptpdcfg['user'])) {
|
|
684
|
foreach ($pptpdcfg['user'] as $user)
|
|
685
|
$mpdsecret .= "{$user['name']} \"{$user['password']}\" {$user['ip']}\n";
|
|
686
|
}
|
|
687
|
|
|
688
|
fwrite($fd, $mpdsecret);
|
|
689
|
fclose($fd);
|
|
690
|
chmod("{$g['varetc_path']}/mpd-vpn/mpd.secret", 0600);
|
|
691
|
|
|
692
|
/* fire up mpd */
|
|
693
|
mwexec("/usr/local/sbin/mpd -b -d {$g['varetc_path']}/mpd-vpn -p {$g['varrun_path']}/mpd-vpn.pid pptpd");
|
|
694
|
|
|
695
|
break;
|
|
696
|
|
|
697
|
case 'redir':
|
|
698
|
break;
|
|
699
|
}
|
|
700
|
|
|
701
|
if (!$g['booting']) {
|
|
702
|
/* reload the filter */
|
|
703
|
filter_configure();
|
|
704
|
}
|
|
705
|
|
|
706
|
if ($g['booting'])
|
|
707
|
echo "done\n";
|
|
708
|
|
|
709
|
return 0;
|
|
710
|
}
|
|
711
|
|
|
712
|
function vpn_localnet_determine($adr, &$sa, &$sn) {
|
|
713
|
global $config, $g;
|
|
714
|
|
|
715
|
if (isset($adr)) {
|
|
716
|
if ($adr['network']) {
|
|
717
|
switch ($adr['network']) {
|
|
718
|
case 'lan':
|
|
719
|
$sn = $config['interfaces']['lan']['subnet'];
|
|
720
|
$sa = gen_subnet($config['interfaces']['lan']['ipaddr'], $sn);
|
|
721
|
break;
|
|
722
|
}
|
|
723
|
} else if ($adr['address']) {
|
|
724
|
list($sa,$sn) = explode("/", $adr['address']);
|
|
725
|
if (is_null($sn))
|
|
726
|
$sn = 32;
|
|
727
|
}
|
|
728
|
} else {
|
|
729
|
$sn = $config['interfaces']['lan']['subnet'];
|
|
730
|
$sa = gen_subnet($config['interfaces']['lan']['ipaddr'], $sn);
|
|
731
|
}
|
|
732
|
}
|
|
733
|
|
|
734
|
function vpn_endpoint_determine($tunnel, $curwanip) {
|
|
735
|
|
|
736
|
global $g, $config;
|
|
737
|
|
|
738
|
if ((!$tunnel['interface']) || ($tunnel['interface'] == "wan")) {
|
|
739
|
if ($curwanip)
|
|
740
|
return $curwanip;
|
|
741
|
else
|
|
742
|
return null;
|
|
743
|
} else if ($tunnel['interface'] == "lan") {
|
|
744
|
return $config['interfaces']['lan']['ipaddr'];
|
|
745
|
} else {
|
|
746
|
$oc = $config['interfaces'][$tunnel['interface']];
|
|
747
|
|
|
748
|
if (isset($oc['enable']) && $oc['if']) {
|
|
749
|
return $oc['ipaddr'];
|
|
750
|
}
|
|
751
|
}
|
|
752
|
|
|
753
|
return null;
|
|
754
|
}
|
|
755
|
|
|
756
|
?>
|