use Data::Dumper;
use PVE::Tools;
use PVE::QemuServer;
+use File::Path;
+use IO::File;
+use Net::IP;
+
+use Data::Dumper;
my $macros;
sub get_shorewall_macros {
return $macros;
}
+my $etc_services;
+
+sub get_etc_services {
+
+ return $etc_services if $etc_services;
+
+ my $filename = "/etc/services";
+
+ my $fh = IO::File->new($filename, O_RDONLY);
+ if (!$fh) {
+ warn "unable to read '$filename' - $!\n";
+ return {};
+ }
+
+ my $services = {};
+
+ while (my $line = <$fh>) {
+ chomp ($line);
+ next if $line =~m/^#/;
+ next if ($line =~m/^\s*$/);
+
+ if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
+ $services->{byid}->{$2}->{name} = $1;
+ $services->{byid}->{$2}->{$3} = 1;
+ $services->{byname}->{$1} = $services->{byid}->{$2};
+ }
+ }
+
+ close($fh);
+
+ $etc_services = $services;
+
+ return $etc_services;
+}
+
+my $etc_protocols;
+
+sub get_etc_protocols {
+ return $etc_protocols if $etc_protocols;
+
+ my $filename = "/etc/protocols";
+
+ my $fh = IO::File->new($filename, O_RDONLY);
+ if (!$fh) {
+ warn "unable to read '$filename' - $!\n";
+ return {};
+ }
+
+ my $protocols = {};
+
+ while (my $line = <$fh>) {
+ chomp ($line);
+ next if $line =~m/^#/;
+ next if ($line =~m/^\s*$/);
+
+ if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
+ $protocols->{byid}->{$2}->{name} = $1;
+ $protocols->{byname}->{$1} = $protocols->{byid}->{$2};
+ }
+ }
+
+ close($fh);
+
+ $etc_protocols = $protocols;
+
+ return $etc_protocols;
+}
+
+sub parse_address_list {
+ my ($str) = @_;
+
+ foreach my $aor (split(/,/, $str)) {
+ if (!Net::IP->new($aor)) {
+ my $err = Net::IP::Error();
+ die "invalid IP address: $err\n";
+ }
+ }
+}
+
+sub parse_port_name_number_or_range {
+ my ($str) = @_;
+
+ my $services = PVE::Firewall::get_etc_services();
+
+ foreach my $item (split(/,/, $str)) {
+ foreach my $pon (split(':', $item, 2)) {
+ next if $pon =~ m/^\d+$/ && $pon > 0 && $pon < 65536;
+ next if defined($services->{byname}->{$pon});
+ die "invalid port '$pon'\n";
+ }
+ }
+
+}
my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
my $action = $rule->{service} ?
"$rule->{service}($rule->{action})" : $rule->{action};
- my $source;
+ my $sources = [];
- if ($zoneinfo->{$zone}->{type} eq 'bport') {
+ if (!$rule->{source}) {
+ push @$sources, 'all';
+ } elsif ($zoneinfo->{$zone}->{type} eq 'bport') {
my $bridge_zone = $zoneinfo->{$zone}->{bridge_zone} || die "internal error";
- my $bridge_ext_zone = $zoneinfo->{$bridge_zone}->{bridge_ext_zone} || die "internal error";
- my $zoneref = $zoneinfo->{$bridge_ext_zone}->{zoneref} || die "internal error";
- if (!$rule->{source}) {
- $source = "${zoneref}";
- } else {
- $source = "${zoneref}:$rule->{source}";
+ my $zoneref = $zoneinfo->{$bridge_zone}->{zoneref} || die "internal error";
+
+ # using 'all' does not work, so we create one rule for
+ # each related zone on the same bridge
+ push @$sources, "${zoneref}:$rule->{source}";
+ foreach my $z (keys %$zoneinfo) {
+ next if $z eq $zone;
+ next if !$zoneinfo->{$z}->{bridge_zone};
+ next if $zoneinfo->{$z}->{bridge_zone} ne $bridge_zone;
+ $zoneref = $zoneinfo->{$z}->{zoneref} || die "internal error";
+ push @$sources, "${zoneref}:$rule->{source}";
}
} else {
- $source = "all:$rule->{source}";
+ push @$sources, "all:$rule->{source}";
+ }
+
+ my $out = '';
+
+ foreach my $source (@$sources) {
+ $out .= sprintf($rule_format, $action, $source, $dest, $rule->{proto} || '-',
+ $rule->{dport} || '-', $rule->{sport} || '-');
}
- return sprintf($rule_format, $action, $source, $dest, $rule->{proto} || '-',
- $rule->{dport} || '-', $rule->{sport} || '-');
+ return $out;
};
my $generate_output_rule = sub {
# we need complete VM configuration of all VMs (openvz/qemu)
# in vmdata
-sub compile {
+my $compile_shorewall = sub {
my ($targetdir, $vmdata, $rules) = @_;
# remove existing data ?
$register_bridge = sub {
my ($bridge, $vlan) = @_;
- my $zone = 'z' . $bridge;
+ my $zone = $bridge;
return $zone if $zoneinfo->{$zone};
- my $ext_zone = "z${bridge}ext";
+ my $ext_zone = "${bridge}_ext";
$zoneinfo->{$zone} = {
type => 'bridge',
my ($bridge, $vlan, $vmzone, $tap) = @_;
my $bridge_zone = &$register_bridge($bridge, $vlan);
- my $zone = $bridge_zone . $vmzone;
+ my $zone = $bridge_zone . '_' . $vmzone;
if (!$zoneinfo->{$zone}) {
$zoneinfo->{$zone} = {
}
PVE::Tools::file_set_contents("$targetdir/rules", $out);
+};
+
+
+sub parse_fw_rules {
+ my ($filename, $fh) = @_;
+
+ my $section;
+
+ my $res = { in => [], out => [] };
+
+ my $macros = get_shorewall_macros();
+ my $protocols = get_etc_protocols();
+
+ 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) {
+ warn "skip incomplete line\n";
+ next;
+ }
+
+ my $service;
+ if ($action =~ m/^(ACCEPT|DROP|REJECT)$/) {
+ # OK
+ } elsif ($action =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
+ ($service, $action) = ($1, $2);
+ if (!$macros->{$service}) {
+ warn "unknown service '$service'\n";
+ next;
+ }
+ } else {
+ warn "unknown action '$action'\n";
+ next;
+ }
+
+ $iface = undef if $iface && $iface eq '-';
+ if ($iface && $iface !~ m/^(net0|net1|net2|net3|net4|net5)$/) {
+ warn "unknown interface '$iface'\n";
+ next;
+ }
+
+ $proto = undef if $proto && $proto eq '-';
+ if ($proto && !(defined($protocols->{byname}->{$proto}) ||
+ defined($protocols->{byid}->{$proto}))) {
+ warn "unknown protokol '$proto'\n";
+ next;
+ }
+
+ $source = undef if $source && $source eq '-';
+ $dest = undef if $dest && $dest eq '-';
+
+ $dport = undef if $dport && $dport eq '-';
+ $sport = undef if $sport && $sport eq '-';
+
+ eval {
+ parse_address_list($source) if $source;
+ parse_address_list($dest) if $dest;
+ parse_port_name_number_or_range($dport) if $dport;
+ parse_port_name_number_or_range($sport) if $sport;
+ };
+ if (my $err = $@) {
+ warn $err;
+ next;
+
+ }
+
+
+ my $rule = {
+ action => $action,
+ service => $service,
+ 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) {
+ #next if !($vmid eq '100' || $vmid eq '102');
+ 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 $filename = "/etc/pve/firewall/$vmid.fw";
+ my $fh = IO::File->new($filename, O_RDONLY);
+ next if !$fh;
+
+ $rules->{$vmid} = parse_fw_rules($filename, $fh);
+ }
+
+ return $rules;
+}
+
+sub compile {
+
+ my $vmdata = read_local_vm_config();
+ my $rules = read_vm_firewall_rules($vmdata);
+
+ # print Dumper($vmdata);
+
+ my $swdir = '/etc/shorewall';
+ mkdir $swdir;
+
+ &$compile_shorewall($swdir, $vmdata, $rules);
+ PVE::Tools::run_command(['shorewall', 'compile']);
}
+sub compile_and_start {
+ my ($restart) = @_;
-sub activate {
+ compile();
+ PVE::Tools::run_command(['shorewall', $restart ? 'restart' : 'start']);
}
projects / pve-firewall.git / blobdiff