Viewing file:  debian-linux-lib.pl (3.53 KB) -rwxr-xr-x
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# debians-linux-lib.pl
# Deal with debian's iptables save file and startup script
if ($gconfig{'os_version'} >= 3.1 &&
!-r "/etc/init.d/iptables" &&
!-r "/etc/init.d/webmin-iptables" &&
!$config{'force_init'}) {
# In newer Debians, IPtable is started by the network init script
$has_new_debian_iptables = 1;
$iptables_save_file = "/etc/iptables.up.rules";
}
else {
# Older Debians use an init script
$has_debian_iptables = -r "/etc/init.d/iptables";
$debian_iptables_dir = "/var/lib/iptables";
if ($has_debian_iptables) {
mkdir($debian_iptables_dir, 0755) if (!-d $debian_iptables_dir);
$iptables_save_file = "$debian_iptables_dir/active";
}
}
# apply_iptables()
# Applies the current iptables configuration from the save file
sub apply_iptables
{
if ($has_debian_iptables) {
local $out = &backquote_logged("cd / ; /etc/init.d/iptables start 2>&1");
return $? ? "<pre>$out</pre>" : undef;
}
else {
return &iptables_restore();
}
}
# unapply_iptables()
# Writes the current iptables configuration to the save file
sub unapply_iptables
{
if ($has_debian_iptables) {
$out = &backquote_logged("cd / ; /etc/init.d/iptables save active 2>&1 </dev/null");
return $? ? "<pre>$out</pre>" : undef;
}
else {
return &iptables_save();
}
}
# started_at_boot()
sub started_at_boot
{
&foreign_require("init", "init-lib.pl");
if ($has_debian_iptables) {
# Check Debian init script
return &init::action_status("iptables") == 2;
}
elsif ($has_new_debian_iptables) {
# Check network interface config
local $pri = &get_primary_network_interface();
local ($debpri) = grep { $_->[0] eq $pri->{'fullname'} }
&net::get_interface_defs();
foreach my $o (@{$debpri->[3]}) {
if (($o->[0] eq "pre-up" || $o->[0] eq "post-up") &&
$o->[1] =~ /\S*iptables-restore\s+<\s+(\S+)/ &&
$1 eq $iptables_save_file) {
return 1;
}
}
}
else {
# Check Webmin init script
return &init::action_status("webmin-iptables") == 2;
}
}
sub enable_at_boot
{
&foreign_require("init", "init-lib.pl");
if ($has_debian_iptables) {
&init::enable_at_boot("iptables"); # Assumes init script exists
}
elsif ($has_new_debian_iptables) {
# Add to network interface config
local $pri = &get_primary_network_interface();
local ($debpri) = grep { $_->[0] eq $pri->{'fullname'} }
&net::get_interface_defs();
if ($debpri && !&started_at_boot()) {
push(@{$debpri->[3]},
[ "post-up", "iptables-restore < $iptables_save_file" ]);
&net::modify_interface_def(@$debpri);
}
}
else {
&create_webmin_init();
}
}
sub disable_at_boot
{
&foreign_require("init", "init-lib.pl");
if ($has_debian_iptables) {
&init::disable_at_boot("iptables");
}
elsif ($has_new_debian_iptables) {
# Remove from network interface config
local $pri = &get_primary_network_interface();
local ($debpri) = grep { $_->[0] eq $pri->{'fullname'} }
&net::get_interface_defs();
@{$debpri->[3]} = grep {
($_->[0] ne "pre-up" && $_->[0] ne "post-up") ||
$_->[1] !~ /^\S*iptables/ } @{$debpri->[3]};
&net::modify_interface_def(@$debpri);
}
else {
&init::disable_at_boot("webmin-iptables");
}
}
sub get_primary_network_interface
{
&foreign_require("net", "net-lib.pl");
local @boot = sort { $a->{'fullname'} cmp $b->{'fullname'} }
&net::boot_interfaces();
local ($eth) = grep { $_->{'fullname'} =~ /^eth\d+$/ } @boot;
local ($ppp) = grep { $_->{'fullname'} =~ /^ppp\d+$/ } @boot;
local ($venetn) = grep { $_->{'fullname'} =~ /^venet\d+:\d+$/ } @boot;
local ($venet) = grep { $_->{'fullname'} =~ /^venet\d+$/ } @boot;
return $eth || $ppp || $venetn || $venet || $boot[0];
}
1;
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