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#!/usr/bin/perl
# save_net.cgi
# save networking sshd options
require './sshd-lib.pl';
&ReadParse();
&error_setup($text{'net_err'});
&lock_file($config{'sshd_config'});
$conf = &get_sshd_config();
if ($version{'type'} eq 'openssh' && $version{'number'} >= 3) {
# Save multiple
if ($in{'listen_def'}) {
&save_directive("ListenAddress", $conf);
}
else {
for($i=0; defined($in{"mode_$i"}); $i++) {
next if ($in{"mode_$i"} == 0);
if ($in{"mode_$i"} == 1) {
$a = "0.0.0.0";
}
elsif ($in{"mode_$i"} == 2) {
$a = "[::]";
}
elsif ($in{"mode_$i"} == 3) {
$a = $in{"address_$i"};
&check_ipaddress($a) || &check_ip6address($a) ||
&error(&text('net_eladdress', $a));
$a = "[$a]" if (&check_ip6address($a));
}
if ($in{"port_${i}_def"}) {
push(@listens, $a);
}
else {
$in{"port_$i"} =~ /^\d+$/ ||
&error(&text('net_elport', $in{"port_$i"}));
push(@listens, $a.":".$in{"port_$i"});
}
}
@listens || &error($text{'net_elisten2'});
&save_directive("ListenAddress", $conf, @listens);
}
}
else {
# Save just one address
if ($in{'listen_def'}) {
&save_directive("ListenAddress", $conf);
}
else {
&check_ipaddress($in{'listen'}) ||
($version{'number'} >= 2 && &to_ipaddress($in{'listen'})) ||
&error($text{'net_elisten'});
&save_directive("ListenAddress", $conf, $in{'listen'});
}
}
# Save ports
if ($in{'port_def'}) {
&save_directive("Port", $conf);
}
else {
@ports = split(/\s+/, $in{'port'});
@ports || &error($text{'net_eport'});
foreach $p (@ports) {
$p =~ /^\d+$/ || &error($text{'net_eport'});
}
&save_directive("Port", $conf, \@ports, "ListenAddress");
}
# Sync socket options
&save_socket(\@ports, \@listens);
if ($version{'type'} eq 'openssh' &&
$version{'number'} >= 2 && $version{'number'} < 7.6) {
@prots = split(/\0/, $in{'prots'});
@prots || &error($text{'net_eprots'});
&save_directive("Protocol", $conf, join(",", @prots));
}
elsif ($version{'number'} >= 7.6) {
&save_directive("Protocol", $conf);
}
if ($version{'type'} eq 'ssh' &&
($version{'number'} < 2 || $version{'number'} >= 3)) {
if ($in{'idle_def'}) {
&save_directive("IdleTimeout", $conf);
}
else {
$in{'idle'} =~ /^\d+$/ || &error($text{'net_eidle'});
&save_directive("IdleTimeout", $conf,
$in{'idle'}.$in{'idle_units'});
}
}
# Determine if the SSH version is 3.8 or higher
my $sshv38 = $version{'number'} >= 3.8;
my $keep_alive_key = $sshv38 ? 'TCPKeepAlive' : 'KeepAlive';
my $keep_curr = &find_value($keep_alive_key, $conf);
my $keep_now = $in{'keep'} ? 'yes' : 'no';
# Check if the current keep-alive value differs from the input value
if ($keep_curr ne $keep_now) {
# Update the keep-alive value based on the input
&save_directive($keep_alive_key, $conf, $keep_now);
# Additional configuration for version 3.8 or higher
if ($sshv38) {
if ($keep_now eq 'yes') {
# Enabled
&save_directive('ClientAliveInterval', $conf, 60);
} else {
# Disabled
&save_directive('ClientAliveInterval', $conf, 0);
}
}
}
if ($in{'grace_def'}) {
&save_directive("LoginGraceTime", $conf);
}
else {
$in{'grace'} =~ /^\d+$/ || &error($text{'net_egrace'});
&save_directive("LoginGraceTime", $conf, $in{'grace'});
}
if ($version{'type'} ne 'openssh' || $version{'number'} >= 2) {
&save_directive("AllowTcpForwarding", $conf, $in{'tcp'} ? 'yes' : 'no');
}
if ($version{'type'} eq 'openssh' && $version{'number'} >= 2) {
&save_directive("GatewayPorts", $conf, $in{'gateway'} ? 'yes' : 'no');
if ($version{'number'} > 2.3 && $version{'number'} < 3.7) {
&save_directive("ReverseMappingCheck", $conf,
$in{'reverse'} ? 'yes' : 'no');
}
}
&flush_file_lines();
&unlock_file($config{'sshd_config'});
&webmin_log("net");
&redirect("");