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Commit a1a316b7 authored by Franco Fichtner's avatar Franco Fichtner
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rc: rework sshd start/stop script

parent c076d1c7
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src/etc/rc.sshd
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......@@ -2,9 +2,8 @@
<?php
/*
Copyright 2004 Scott K Ullrich
Original Copyright (C) 2004 Fred Mol <fredmol@xs4all.nl>.
Copyright (C) 2004 Scott K Ullrich
Copyright (C) 2004 Fred Mol <fredmol@xs4all.nl>.
All rights reserved.
Redistribution and use in source and binary forms, with or without
......@@ -34,6 +33,8 @@ require_once("config.inc");
require_once("functions.inc");
require_once("shaper.inc");
killbyname('sshd');
if (!isset($config['system']['enablesshd'])) {
return;
}
......@@ -43,6 +44,10 @@ if (!is_subsystem_dirty('sshdkeys')) {
conf_mount_rw();
}
if (file_exists('/conf/sshd/ssh_host_key') && !file_exists('/etc/ssh/ssh_host_key')) {
mwexec('/bin/cp -p /conf/sshd/* /etc/ssh/');
}
$keys = array(
'ssh_host_key',
'ssh_host_key.pub',
......@@ -56,93 +61,61 @@ $keys = array(
'ssh_host_ed25519_key.pub'
);
/* restore ssh data for nanobsd platform */
if($g['platform'] == "nanobsd" and file_exists("/conf/sshd/ssh_host_key") and !file_exists("/etc/ssh/ssh_host_key.pub")) {
echo "Restoring SSH from /conf/sshd/";
exec("/bin/cp -p /conf/sshd/* /etc/ssh/");
/* make sure host private key permissions aren't too open so sshd won't complain */
foreach($keys as $f2c) {
if(file_exists("/etc/ssh/{$f2c}"))
chmod("/etc/ssh/{$f2c}", 0600);
}
}
/* if any of these files are 0 bytes then they are corrupted.
* remove them
*/
foreach($keys as $f2c) {
if (file_exists("/etc/ssh/{$f2c}") && filesize("/etc/ssh/{$f2c}") == 0) {
unlink_if_exists('/etc/ssh/ssh_host*');
break;
unlink("/etc/ssh/{$f2c}");
}
}
if (!is_dir("/var/empty")) {
/* make ssh home directory */
mkdir("/var/empty", 0555);
}
/* make ssh home directory */
@mkdir("/var/empty", 0555, true);
if(!file_exists("/var/log/lastlog")) {
/* Login related files. */
@touch("/var/log/lastlog");
}
/* Login related files. */
touch("/var/log/lastlog");
$sshConfigDir = "/etc/ssh";
if (is_array($config['system']['ssh']) && !empty($config['system']['ssh']['port']))
if (isset($config['system']['ssh']['port'])) {
$sshport = $config['system']['ssh']['port'];
else
} else {
$sshport = 22;
}
/*
* XXX ZOMG sshd_config BOOTSTRAPPING ACTION
*
* We can't just ditch the system file by default and roll
* our own. Instead, use the current file to find the actual
* settings that need toggling, then toggle them!
*/
/* Include default configuration for pfSense */
$sshconf = "# This file is automatically generated at startup\n";
$sshconf .= "Ciphers aes128-ctr,aes256-ctr,arcfour256,arcfour,aes128-cbc,aes256-cbc\n";
$sshconf .= "PermitRootLogin yes\n";
$sshconf = "# This file was automatically generated by /usr/local/etc/rc.sshd\n";
$sshconf .= "Port {$sshport}\n";
$sshconf .= "Protocol 2\n";
/* XXX a couple of those need moar cleanups: */
$sshconf .= "Compression yes\n";
$sshconf .= "ClientAliveInterval 30\n";
$sshconf .= "UseDNS no\n";
$sshconf .= "X11Forwarding no\n";
$sshconf .= "PubkeyAuthentication yes\n";
$sshconf .= "Subsystem\tsftp\tinternal-sftp\n";
if (isset($config['system']['ssh']['permitrootlogin'])) {
$sshconf .= "PermitRootLogin yes\n";
}
if (isset($config['system']['ssh']['sshdkeyonly'])) {
$sshconf .= "# Login via Key only\n";
$sshconf .= "PasswordAuthentication no\n";
$sshconf .= "ChallengeResponseAuthentication no\n";
$sshconf .= "PubkeyAuthentication yes\n";
} else {
$sshconf .= "# Login via Key and Password\n";
$sshconf .= "PasswordAuthentication yes\n";
$sshconf .= "ChallengeResponseAuthentication yes\n";
$sshconf .= "PubkeyAuthentication yes\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";
/* Hide FreeBSD version */
$sshconf .= "VersionAddendum \n";
/* Write the new sshd config file */
@file_put_contents("/etc/ssh/sshd_config", $sshconf);
/* mop up from a badly implemented ssh keys -> cf backup */
if($config['ssh']['dsa_key'] <> "") {
unset($config['ssh']['dsa_key']);
unset($config['ssh']['ecdsa_key']);
unset($config['ssh']['ed25519_key']);
unset($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");
}
file_put_contents('/etc/ssh/sshd_config', $sshconf);
/* are we already running? if so exit */
if(is_subsystem_dirty('sshdkeys')) {
unset($keys);
if (is_subsystem_dirty('sshdkeys')) {
return;
}
......@@ -156,40 +129,29 @@ foreach ($keys as $f2c) {
}
if ($generate_keys) {
/* remove previous keys and regen later */
file_notice("SSH", "{$g['product_name']} has started creating your SSH keys. SSH Startup will be delayed. Please note that reloading the filter rules and changes will be delayed until this operation is completed.", "SSH KeyGen", "");
unlink_if_exists('/etc/ssh/ssh_host_*');
log_error(_('Started creating your SSH keys. SSH startup is being delayed a wee bit.'));
mark_subsystem_dirty('sshdkeys');
echo " Generating Keys:\n";
$_gb = exec("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa1 -N '' -f $sshConfigDir/ssh_host_key");
$_gb = exec("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t rsa -N '' -f $sshConfigDir/ssh_host_rsa_key");
$_gb = exec("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t dsa -N '' -f $sshConfigDir/ssh_host_dsa_key");
$_gb = exec("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t ecdsa -N '' -f $sshConfigDir/ssh_host_ecdsa_key");
$_gb = exec("/usr/bin/nice -n20 /usr/bin/ssh-keygen -t ed25519 -N '' -f $sshConfigDir/ssh_host_ed25519_key");
mwexec('/bin/rm /etc/ssh/ssh_host_*', true);
mwexec("/usr/bin/ssh-keygen -t rsa1 -N '' -f {$sshConfigDir}/ssh_host_key");
mwexec("/usr/bin/ssh-keygen -t rsa -N '' -f {$sshConfigDir}/ssh_host_rsa_key");
mwexec("/usr/bin/ssh-keygen -t dsa -N '' -f {$sshConfigDir}/ssh_host_dsa_key");
mwexec("/usr/bin/ssh-keygen -t ecdsa -N '' -f {$sshConfigDir}/ssh_host_ecdsa_key");
mwexec("/usr/bin/ssh-keygen -t ed25519 -N '' -f {$sshConfigDir}/ssh_host_ed25519_key");
clear_subsystem_dirty('sshdkeys');
file_notice("SSH", "{$g['product_name']} has completed creating your SSH keys. SSH is now started.", "SSH Startup", "");
log_error(_('Completed creating your SSH keys. SSH will now be started.'));
}
/* 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 $sshd_pid \n";
@posix_kill($sshd_pid, SIGTERM);
}
/* 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";
echo "Reloading sshd...";
if (mwexec('/usr/sbin/sshd')) {
echo "failed.\n";
} else {
echo "done.\n";
}
// NanoBSD
if($g['platform'] == "nanobsd") {
if(!is_dir("/conf/sshd"))
mkdir("/conf/sshd", 0750);
$_gb = exec("/bin/cp -p /etc/ssh/ssh_host* /conf/sshd");
}
/* back up files in case they are useful */
@mkdir('/conf/sshd', 0777, true);
mwexec('/bin/cp -p /etc/ssh/ssh_host* /conf/sshd');
conf_mount_ro();
unset($keys);
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