rename firewall setup script to 'pvefw'

[pve-firewall.git] / pvefw

diff --git a/pvefw b/pvefw
new file mode 100755 (executable)
index 0000000..fdf7246
--- /dev/null
+++ b/pvefw
@@ -0,0 +1,238 @@
+#!/usr/bin/perl -w
+
+use strict;
+use lib qw(.);
+use PVE::Firewall;
+use File::Path;
+use IO::File;
+use Data::Dumper;
+
+use PVE::SafeSyslog;
+use PVE::Cluster;
+use PVE::INotify;
+use PVE::RPCEnvironment;
+use PVE::QemuServer;
+
+use PVE::JSONSchema qw(get_standard_option);
+
+use PVE::CLIHandler;
+
+use base qw(PVE::CLIHandler);
+
+$ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin';
+
+initlog ('pvefw');
+
+die "please run as root\n" if $> != 0;
+
+PVE::INotify::inotify_init();
+
+my $rpcenv = PVE::RPCEnvironment->init('cli');
+
+$rpcenv->init_request();
+$rpcenv->set_language($ENV{LANG});
+$rpcenv->set_user('root@pam');
+
+sub parse_fw_rules {
+    my ($filename, $fh) = @_;
+
+    my $section;
+
+    my $res = { in => [], out => [] };
+
+    while (defined(my $line = <$fh>)) {
+       next if $line =~ m/^#/;
+       next if $line =~ m/^\s*$/;
+
+       if ($line =~ m/^\[(in|out)\]\s*$/i) {
+           $section = lc($1);
+           next;
+       }
+       next if !$section;
+
+       my ($action, $iface, $source, $dest, $proto, $dport, $sport) =
+           split(/\s+/, $line);
+
+       if (!($action && $iface && $source && $dest)) {
+           warn "skip incomplete line\n";
+           next;
+       }
+
+       if ($action !~ m/^(ACCEPT|DROP)$/) {
+           warn "unknown action '$action'\n";
+#          next;
+       }
+
+       if ($iface !~ m/^(all|net0|net1|net2|net3|net4|net5)$/) {
+           warn "unknown interface '$iface'\n";
+           next;
+       }
+
+       if ($proto && $proto !~ m/^(icmp|tcp|udp)$/) {
+           warn "unknown protokol '$proto'\n";
+           next;
+       }
+
+       if ($source !~ m/^(any)$/) {
+           warn "unknown source '$source'\n";
+           next;
+       }
+
+       if ($dest !~ m/^(any)$/) {
+           warn "unknown destination '$dest'\n";
+           next;
+       }
+
+       my $rule = {
+           action => $action,
+           iface => $iface,
+           source => $source,
+           dest => $dest,
+           proto => $proto,
+           dport => $dport,
+           sport => $sport,
+       };
+
+       push @{$res->{$section}}, $rule;
+    }
+
+    return $res;
+}
+
+sub read_local_vm_config {
+
+    my $openvz = {};
+
+    my $qemu = {};
+
+    my $list = PVE::QemuServer::config_list();
+
+    foreach my $vmid (keys %$list) {
+       my $cfspath = PVE::QemuServer::cfs_config_path($vmid);
+       if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
+           $qemu->{$vmid} = $conf;
+       }
+    }
+
+    my $vmdata = { openvz => $openvz, qemu => $qemu };
+
+    return $vmdata;
+};
+
+sub read_vm_firewall_rules {
+    my ($vmdata) = @_;
+
+    my $rules = {};
+    foreach my $vmid (keys %{$vmdata->{qemu}}, keys %{$vmdata->{openvz}}) {
+       my $filename = "/etc/pve/$vmid.fw";
+       my $fh = IO::File->new($filename, O_RDONLY);
+       next if !$fh;
+
+       $rules->{$vmid} = parse_fw_rules($filename, $fh);
+    }
+
+    return $rules;
+}
+
+__PACKAGE__->register_method ({
+    name => 'compile',
+    path => 'compile',
+    method => 'POST',
+    description => "Compile firewall rules.",
+    parameters => {
+       additionalProperties => 0,
+       properties => {},
+    },
+    returns => { type => 'null' },
+
+    code => sub {
+       my ($param) = @_;
+
+       my $vmdata = read_local_vm_config();
+       my $rules = read_vm_firewall_rules();
+
+       # print Dumper($vmdata);
+
+       my $swdir = '/etc/shorewall';
+       mkdir $swdir;
+
+       PVE::Firewall::compile($swdir, $vmdata, $rules);
+
+       PVE::Tools::run_command(['shorewall', 'compile']);
+
+       return undef;
+
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'start',
+    path => 'start',
+    method => 'POST',
+    description => "Start firewall.",
+    parameters => {
+       additionalProperties => 0,
+       properties => {},
+    },
+    returns => { type => 'null' },
+
+    code => sub {
+       my ($param) = @_;
+
+       PVE::Tools::run_command(['shorewall', 'start']);
+
+       return undef;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'stop',
+    path => 'stop',
+    method => 'POST',
+    description => "Stop firewall.",
+    parameters => {
+       additionalProperties => 0,
+       properties => {},
+    },
+    returns => { type => 'null' },
+
+    code => sub {
+       my ($param) = @_;
+
+       PVE::Tools::run_command(['shorewall', 'stop']);
+
+       return undef;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'clear',
+    path => 'clear',
+    method => 'POST',
+    description => "Clear will remove all rules installed by this script. The host is then unprotected.",
+    parameters => {
+       additionalProperties => 0,
+       properties => {},
+    },
+    returns => { type => 'null' },
+
+    code => sub {
+       my ($param) = @_;
+
+       PVE::Tools::run_command(['shorewall', 'clear']);
+
+       return undef;
+    }});
+
+my $nodename = PVE::INotify::nodename();
+
+my $cmddef = {
+    compile => [ __PACKAGE__, 'compile', []],
+    start => [ __PACKAGE__, 'start', []],
+    stop => [ __PACKAGE__, 'stop', []],
+    clear => [ __PACKAGE__, 'clear', []],
+};
+
+my $cmd = shift;
+
+PVE::CLIHandler::handle_cmd($cmddef, "pvefw", $cmd, \@ARGV, undef, $0);
+
+exit(0);
+