mirror of
https://github.com/pfsense/pfsense.git
synced 2025-10-26 11:38:35 +00:00
265 lines
8.1 KiB
PHP
Executable File
265 lines
8.1 KiB
PHP
Executable File
#! /usr/local/bin/php -f
|
|
<?php
|
|
/*
|
|
sshd - Modified to work on disk based system
|
|
Copyright 2004 Scott K Ullrich
|
|
|
|
Original Copyright (C) 2004 Fred Mol <fredmol@xs4all.nl>.
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
require_once("config.inc");
|
|
|
|
if(isset($config['system']['enablesshd'])) {
|
|
/* do nothing, we're enabled */
|
|
} else {
|
|
if($g['booting'])
|
|
echo "SSHD is disabled.";
|
|
exit;
|
|
}
|
|
|
|
function file_size($file) {
|
|
$size = filesize($file);
|
|
return $size;
|
|
}
|
|
|
|
/* if any of these files are 0 bytes then they are corrupted.
|
|
* remove them
|
|
*/
|
|
$files_to_check = array('ssh_host_dsa_key','ssh_host_dsa_key.pub','ssh_host_key','ssh_host_key.pub','ssh_host_rsa_key','ssh_host_rsa_key.pub','/root/.authorized_keys');
|
|
foreach($files_to_check as $f2c) {
|
|
if(file_exists("/etc/ssh/{$f2c}"))
|
|
if(file_size("/etc/ssh/{$f2c}")==0) {
|
|
mwexec("rm /etc/ssh/ssh_host*");
|
|
}
|
|
}
|
|
|
|
if (!is_dir("/var/empty")) {
|
|
/* make ssh home directory */
|
|
mkdir("/var/empty", 0555);
|
|
}
|
|
|
|
if(!file_exists("")) {
|
|
/* Login related files. */
|
|
touch("/var/log/lastlog");
|
|
}
|
|
|
|
/* Make the root passwords are the same as the web admin password. */
|
|
conf_mount_rw();
|
|
$fd = popen("/usr/sbin/pw usermod -n root -H 0", "w");
|
|
fwrite($fd, $config['system']['password']);
|
|
pclose($fd);
|
|
|
|
/* Make the admin passwords are the same as the web admin password. */
|
|
$fd = popen("/usr/sbin/pw usermod -n admin -H 0", "w");
|
|
fwrite($fd, $config['system']['password']);
|
|
pclose($fd);
|
|
|
|
$sshConfigDir = "/etc/ssh";
|
|
|
|
if($config['system']['ssh']['port'] <> "") {
|
|
$sshport = $config['system']['ssh']['port'];
|
|
} else {
|
|
$sshport = 22;
|
|
}
|
|
|
|
/* Include default configuration for pfSense */
|
|
$sshconf = "# This file is automatically generated at startup\n";
|
|
$sshconf .= "PermitRootLogin yes\n";
|
|
$sshconf .= "Compression yes\n";
|
|
$sshconf .= "ClientAliveInterval 30\n";
|
|
$sshconf .= "UseDNS no\n";
|
|
$sshconf .= "X11Forwarding no\n";
|
|
$sshconf .= "# override default of no subsystems\n";
|
|
$sshconf .= "Subsystem sftp /usr/libexec/sftp-server\n";
|
|
/* Only allow protocol 2, because we say so */
|
|
$sshconf .= "Protocol 2\n";
|
|
/* Run the server on another port if we have one defined */
|
|
$sshconf .= "Port $sshport\n";
|
|
|
|
/* Write the new sshd config file */
|
|
$fd = fopen("/etc/ssh/sshd_config", "w");
|
|
fwrite($fd, $sshconf);
|
|
pclose($fd);
|
|
|
|
/* mop up from a badly implemented ssh keys -> cf backup */
|
|
if($config['ssh']['dsa_key'] <> "") {
|
|
unset($config['ssh']['dsa_key']);
|
|
unset($config['ssh']['rsa_key']);
|
|
unset($config['ssh']['rsa1_key']);
|
|
unset($config['ssh']['dsa']);
|
|
unset($config['ssh']['rsa']);
|
|
unset($config['ssh']['rsa1']);
|
|
unset($config['ssh']['ak']);
|
|
write_config("Clearing SSH keys from config.xml");
|
|
}
|
|
|
|
/* are we already running? if so exit */
|
|
if(file_exists("/tmp/keys_generating"))
|
|
exit;
|
|
|
|
if (!file_exists("$sshConfigDir/ssh_host_key") or file_exists("/etc/keys_generating")) {
|
|
/* remove previous keys and regen later */
|
|
conf_mount_rw();
|
|
mwexec("rm /etc/ssh/ssh_host_*");
|
|
touch("/etc/keys_generating");
|
|
touch("/tmp/keys_generating");
|
|
echo " Generating Keys:\n";
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa1 -N '' -f $sshConfigDir/ssh_host_key");
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa -N '' -f $sshConfigDir/ssh_host_rsa_key");
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t dsa -N '' -f $sshConfigDir/ssh_host_dsa_key");
|
|
unlink("/etc/keys_generating");
|
|
unlink("/tmp/keys_generating");
|
|
echo "Starting SSH... ";
|
|
}
|
|
|
|
/* kill existing sshd process, server only, not the childs */
|
|
$sshd_pid = exec("ps ax | egrep '/usr/sbin/[s]shd' | awk '{print $1}'");
|
|
if($sshd_pid <> "") {
|
|
echo "stopping ssh process $sshd_pid \n";
|
|
mwexec("kill $sshd_pid");
|
|
}
|
|
/* Launch new server process */
|
|
$status = mwexec("/usr/sbin/sshd");
|
|
if($status <> 0) {
|
|
file_notice("sshd_startup", "SSHD failed to start.", "SSHD Daemon", "");
|
|
echo "error!\n";
|
|
} else {
|
|
echo "done.\n";
|
|
}
|
|
|
|
conf_mount_ro();
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
exit;
|
|
|
|
/* exit early, this needs more testing. */
|
|
|
|
if (!file_exists("$sshConfigDir/ssh_host_key") and $config['ssh']['dsa'] == "") {
|
|
/* generate keys */
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa1 -N '' -f $sshConfigDir/ssh_host_key");
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa -N '' -f $sshConfigDir/ssh_host_rsa_key");
|
|
system("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t dsa -N '' -f $sshConfigDir/ssh_host_dsa_key");
|
|
|
|
/* save keys */
|
|
$dsa = file_get_contents("{$sshConfigDir}/ssh_host_dsa_key");
|
|
$rsa = file_get_contents("{$sshConfigDir}/ssh_host_rsa_key");
|
|
$rsa1 = file_get_contents("{$sshConfigDir}/ssh_host_key");
|
|
$config['ssh']['dsa'] = base64_encode($dsa);
|
|
$config['ssh']['rsa'] = base64_encode($rsa);
|
|
$config['ssh']['rsa1']= base64_encode($rsa1);
|
|
|
|
/* save public keys */
|
|
$dsapub = file_get_contents("{$sshConfigDir}/ssh_host_dsa_key.pub");
|
|
$rsapub = file_get_contents("{$sshConfigDir}/ssh_host_rsa_key.pub");
|
|
$rsa1pub = file_get_contents("{$sshConfigDir}/ssh_host_key.pub");
|
|
$config['ssh']['dsa_key'] = base64_encode($dsapub);
|
|
$config['ssh']['rsa_key'] = base64_encode($rsapub);
|
|
$config['ssh']['rsa1_key']= base64_encode($rsa1pub);
|
|
write_config("Saved SSH keys.");
|
|
} else {
|
|
/* restore keys */
|
|
$rsa1 = base64_decode($config['ssh']['rsa1']);
|
|
$rsa = base64_decode($config['ssh']['rsa']);
|
|
$dsa = base64_decode($config['ssh']['dsa']);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_key", $rsa1);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_rsa_key", $rsa);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_dsa_key", $dsa);
|
|
|
|
/* restore public keys */
|
|
$rsa1_pub = base64_decode($config['ssh']['rsa1_key']);
|
|
$rsa_pub = base64_decode($config['ssh']['rsa_key']);
|
|
$dsa_pub = base64_decode($config['ssh']['dsa_key']);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_key.pub", $rsa1_pub);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_rsa_key.pub", $rsa_pub);
|
|
file_put_contents("{$sshConfigDir}/ssh_host_dsa_key.pub", $dsa_pub);
|
|
|
|
/* change keys owner to root */
|
|
chown("{$sshConfigDir}/ssh_host_key", "root");
|
|
chown("{$sshConfigDir}/ssh_host_rsa_key", "root");
|
|
chown("{$sshConfigDir}/ssh_host_dsa_key", "root");
|
|
|
|
/* change public keys owner to root */
|
|
chown("{$sshConfigDir}/ssh_host_key.pub", "root");
|
|
chown("{$sshConfigDir}/ssh_host_rsa_key.pub", "root");
|
|
chown("{$sshConfigDir}/ssh_host_dsa_key.pub", "root");
|
|
|
|
/* change mode on keys to u+rw */
|
|
chmod("{$sshConfigDir}/ssh_host_key",0600);
|
|
chmod("{$sshConfigDir}/ssh_host_rsa_key",0600);
|
|
chmod("{$sshConfigDir}/ssh_host_dsa_key",0600);
|
|
|
|
/* change mode on public keys to u+rw */
|
|
chmod("{$sshConfigDir}/ssh_host_key.pub",0600);
|
|
chmod("{$sshConfigDir}/ssh_host_rsa_key.pub",0600);
|
|
chmod("{$sshConfigDir}/ssh_host_dsa_key.pub",0600);
|
|
}
|
|
|
|
if($config['ssh']['ak'] <> "") {
|
|
$ak = base64_decode($config['ssh']['ak']);
|
|
file_put_contents("/root/.authorized_keys", $ak);
|
|
chmod("/root/.authorized_keys",0600);
|
|
}
|
|
|
|
/* start sshd */
|
|
system("/usr/sbin/sshd");
|
|
echo "done.\n";
|
|
|
|
?>
|