X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=src%2FPVE%2FFirewall.pm;h=c4bc30879d00addabf05bc47a671561e24078bdf;hb=88733a748c21283a6f1168f88a679056c68325c9;hp=dd6ec61a38e5d02a9dd7e695a4c023f97a8782eb;hpb=35f0c37e4dfcc017ca3446971efcb5f78155a7e7;p=pve-firewall.git

diff --git a/src/PVE/Firewall.pm b/src/PVE/Firewall.pm
index dd6ec61..c4bc308 100644
--- a/src/PVE/Firewall.pm
+++ b/src/PVE/Firewall.pm
@@ -15,7 +15,7 @@ use File::Basename;
 use File::Path;
 use IO::File;
 use Net::IP;
-use PVE::Tools qw(run_command lock_file);
+use PVE::Tools qw(run_command lock_file dir_glob_foreach);
 use Encode;
 
 my $hostfw_conf_filename = "/etc/pve/local/host.fw";
@@ -56,6 +56,14 @@ PVE::JSONSchema::register_standard_option('ipset-name', {
     maxLength => 20,			  
 });
 
+PVE::JSONSchema::register_standard_option('pve-fw-alias', {
+    description => "Alias name.",
+    type => 'string',
+    pattern => '[A-Za-z][A-Za-z0-9\-\_]+',
+    minLength => 2,
+    maxLength => 20,			  
+});
+
 PVE::JSONSchema::register_standard_option('pve-fw-loglevel' => {
     description => "Log level.",
     type => 'string', 
@@ -63,12 +71,13 @@ PVE::JSONSchema::register_standard_option('pve-fw-loglevel' => {
     optional => 1,
 });
 
-my $security_group_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
+my $security_group_name_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
+my $ip_alias_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
 
 PVE::JSONSchema::register_standard_option('pve-security-group-name', {
     description => "Security Group name.",
     type => 'string',
-    pattern => $security_group_pattern,
+    pattern => $security_group_name_pattern,
     minLength => 2,
     maxLength => 20,				  
 });
@@ -712,6 +721,7 @@ sub parse_address_list {
     my ($str) = @_;
 
     return if $str =~ m/^(\+)(\S+)$/; # ipset ref
+    return if $str =~ m/^${ip_alias_pattern}$/;
 
     my $count = 0;
     my $iprange = 0;
@@ -854,7 +864,7 @@ my $rule_properties = {
 	description => "Rule action ('ACCEPT', 'DROP', 'REJECT') or security group name.",
 	type => 'string',
 	optional => 1,
-	pattern => $security_group_pattern,
+	pattern => $security_group_name_pattern,
 	maxLength => 20,
 	minLength => 2,
     },
@@ -986,7 +996,7 @@ sub verify_rule {
 	raise_param_exc({ type => "security groups not allowed"}) 
 	    if !$allow_groups;
 	raise_param_exc({ action => "invalid characters in security group name"}) 
-	    if $rule->{action} !~ m/^${security_group_pattern}$/;
+	    if $rule->{action} !~ m/^${security_group_name_pattern}$/;
     } else {
 	raise_param_exc({ type => "unknown rule type '$type'"});
     }
@@ -1092,7 +1102,7 @@ sub iptables_get_chains {
 
 	return 1 if $name =~ m/^venet0-\d+-(:?IN|OUT)$/;
 
-	return 1 if $name =~ m/^vmbr\d+-(:?FW|IN|OUT|IPS)$/;
+	return 1 if $name =~ m/^vmbr\d+(v\d+)?-(:?FW|IN|OUT|IPS)$/;
 	return 1 if $name =~ m/^GROUP-(:?[^\s\-]+)-(:?IN|OUT)$/;
 
 	return undef;
@@ -1204,10 +1214,18 @@ sub ruleset_generate_cmdstr {
     my $dest = $rule->{dest};
 
     if ($source) {
-        if ($source =~ m/^(\+)(\S+)$/) {
-	    die "no such ipset $2" if !$cluster_conf->{ipset}->{$2};
-	    push @cmd, "-m set --match-set PVEFW-$2 src";
-
+        if ($source =~ m/^\+/) {
+	    if ($source =~ m/^\+(${security_group_name_pattern})$/) {
+		die "no such ipset '$1'\n" if !$cluster_conf->{ipset}->{$1};
+		push @cmd, "-m set --match-set PVEFW-$1 src";
+	    } else {
+		die "invalid security group name '$source'\n";
+	    }
+	} elsif ($source =~ m/^${ip_alias_pattern}$/){
+	    my $alias = lc($source);
+	    my $e = $cluster_conf->{aliases}->{$alias};
+	    die "no such alias $source\n" if !$e;
+	    push @cmd, "-s $e->{cidr}";
         } elsif ($source =~ m/\-/){
 	    push @cmd, "-m iprange --src-range $source";
 
@@ -1217,10 +1235,18 @@ sub ruleset_generate_cmdstr {
     }
 
     if ($dest) {
-        if ($dest =~ m/^(\+)(\S+)$/) {
-	    die "no such ipset $2" if !$cluster_conf->{ipset}->{$2};
-	    push @cmd, "-m set --match-set PVEFW-$2 dst";
-
+        if ($dest =~ m/^\+/) {
+	    if ($dest =~ m/^\+(${security_group_name_pattern})$/) {
+		die "no such ipset '$1'\n" if !$cluster_conf->{ipset}->{$1};
+		push @cmd, "-m set --match-set PVEFW-$1 dst";
+	    } else {
+		die "invalid security group name '$dest'\n";
+	    }
+	} elsif ($dest =~ m/^${ip_alias_pattern}$/){
+	    my $alias = lc($source);
+	    my $e = $cluster_conf->{aliases}->{$alias};
+	    die "no such alias $dest" if !$e;
+	    push @cmd, "-d $e->{cidr}";
         } elsif ($dest =~ m/^(\d+)\.(\d+).(\d+).(\d+)\-(\d+)\.(\d+).(\d+).(\d+)$/){
 	    push @cmd, "-m iprange --dst-range $dest";
 
@@ -1293,11 +1319,18 @@ sub ruleset_generate_rule {
 	$rules = [ $rule ];
     }
 
+    # update all or nothing
+
+    my @cmds = ();
     foreach my $tmp (@$rules) {
 	if (my $cmdstr = ruleset_generate_cmdstr($ruleset, $chain, $tmp, $actions, $goto, $cluster_conf)) {
-	    ruleset_addrule($ruleset, $chain, $cmdstr);
+	    push @cmds, $cmdstr;
 	}
     }
+
+    foreach my $cmdstr (@cmds) {
+	ruleset_addrule($ruleset, $chain, $cmdstr);
+    }
 }
 
 sub ruleset_generate_rule_insert {
@@ -1365,11 +1398,11 @@ sub ruleset_addlog {
 
     $logrule = "$rule $logrule" if defined($rule);
 
-    ruleset_addrule($ruleset, $chain, $logrule)
+    ruleset_addrule($ruleset, $chain, $logrule);
 }
 
 sub generate_bridge_chains {
-    my ($ruleset, $hostfw_conf, $bridge, $routing_table) = @_;
+    my ($ruleset, $hostfw_conf, $bridge, $routing_table, $bridges_config) = @_;
 
     my $options = $hostfw_conf->{options} || {};
 
@@ -1384,12 +1417,26 @@ sub generate_bridge_chains {
 
     if (!ruleset_chain_exist($ruleset, "$bridge-OUT")) {
 	ruleset_create_chain($ruleset, "$bridge-OUT");
+
+	if($options->{optimize}){
+	    foreach my $interface (@{$bridges_config->{$bridge}}) {
+		ruleset_addrule($ruleset, "$bridge-OUT", "-m physdev --physdev-is-bridged --physdev-in $interface -g PVEFW-SET-ACCEPT-MARK");
+	    }
+	}
+
 	ruleset_addrule($ruleset, "$bridge-FW", "-m physdev --physdev-is-in -j $bridge-OUT");
 	ruleset_insertrule($ruleset, "PVEFW-INPUT", "-i $bridge -m physdev --physdev-is-in -j $bridge-OUT");
     }
 
     if (!ruleset_chain_exist($ruleset, "$bridge-IN")) {
 	ruleset_create_chain($ruleset, "$bridge-IN");
+
+	if($options->{optimize}){
+	    foreach my $interface (@{$bridges_config->{$bridge}}) {
+		ruleset_addrule($ruleset, "$bridge-IN", "-m physdev --physdev-is-bridged --physdev-out $interface -j ACCEPT");
+	    }
+	}
+
 	ruleset_addrule($ruleset, "$bridge-FW", "-m physdev --physdev-is-out -j $bridge-IN");
 	ruleset_addrule($ruleset, "$bridge-FW", "-m mark --mark 1 -j ACCEPT");
 	# accept traffic to unmanaged bridge ports
@@ -1425,12 +1472,12 @@ sub ruleset_add_chain_policy {
 }
 
 sub ruleset_create_vm_chain {
-    my ($ruleset, $chain, $options, $macaddr, $direction) = @_;
+    my ($ruleset, $chain, $options, $host_options, $macaddr, $direction) = @_;
 
     ruleset_create_chain($ruleset, $chain);
     my $accept = generate_nfqueue($options);
 
-    if (!(defined($options->{nosmurfs}) && $options->{nosmurfs} == 0)) {
+    if (!(defined($host_options->{nosmurfs}) && $host_options->{nosmurfs} == 0)) {
 	ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate INVALID,NEW -j PVEFW-smurfs");
     }
 
@@ -1444,7 +1491,7 @@ sub ruleset_create_vm_chain {
 	}
     }
 
-    if ($options->{tcpflags}) {
+    if ($host_options->{tcpflags}) {
 	ruleset_addrule($ruleset, $chain, "-p tcp -j PVEFW-tcpflags");
     }
 
@@ -1468,6 +1515,8 @@ sub ruleset_generate_vm_rules {
 
     my $lc_direction = lc($direction);
 
+    my $in_accept = generate_nfqueue($options);
+
     foreach my $rule (@$rules) {
 	next if $rule->{iface} && $rule->{iface} ne $netid;
 	next if !$rule->{enable};
@@ -1486,13 +1535,18 @@ sub ruleset_generate_vm_rules {
 
 	} else {
 	    next if $rule->{type} ne $lc_direction;
-	    if ($direction eq 'OUT') {
-		ruleset_generate_rule($ruleset, $chain, $rule,
-				      { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" }, undef, $cluster_conf);
-	    } else {
-		my $accept = generate_nfqueue($options);
-		ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept , REJECT => "PVEFW-reject" }, undef, $cluster_conf);
-	    }
+	    eval {
+		if ($direction eq 'OUT') {
+		    ruleset_generate_rule($ruleset, $chain, $rule,
+					  { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" }, 
+					  undef, $cluster_conf);
+		} else {
+		    ruleset_generate_rule($ruleset, $chain, $rule, 
+					  { ACCEPT => $in_accept , REJECT => "PVEFW-reject" }, 
+					  undef, $cluster_conf);
+		}
+	    };
+	    warn $@ if $@;
 	}
     }
 }
@@ -1500,22 +1554,20 @@ sub ruleset_generate_vm_rules {
 sub generate_nfqueue {
     my ($options) = @_;
 
-    my $action = "";
-    if($options->{ips}){
-	$action = "NFQUEUE";
-	if($options->{ips_queues} && $options->{ips_queues} =~ m/^(\d+)(:(\d+))?$/) {
-	    if(defined($3) && defined($1)) {
+    if ($options->{ips}) {
+	my $action = "NFQUEUE";
+	if ($options->{ips_queues} && $options->{ips_queues} =~ m/^(\d+)(:(\d+))?$/) {
+	    if (defined($3) && defined($1)) {
 		$action .= " --queue-balance $1:$3";
-	    }elsif (defined($1)) {
+	    } elsif (defined($1)) {
 		$action .= " --queue-num $1";
 	    }
 	}
 	$action .= " --queue-bypass" if $feature_ipset_nomatch; #need kernel 3.10
-    }else{
-	$action = "ACCEPT";
+	return $action;
+    } else {
+	return "ACCEPT";
     }
-
-    return $action;
 }
 
 sub ruleset_generate_vm_ipsrules {
@@ -1538,7 +1590,7 @@ sub ruleset_generate_vm_ipsrules {
 }
 
 sub generate_venet_rules_direction {
-    my ($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
+    my ($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
 
     parse_address_list($ip); # make sure we have a valid $ip list
 
@@ -1547,11 +1599,12 @@ sub generate_venet_rules_direction {
     my $rules = $vmfw_conf->{rules};
 
     my $options = $vmfw_conf->{options};
+    my $hostfw_options = $vmfw_conf->{options};
     my $loglevel = get_option_log_level($options, "log_level_${lc_direction}");
 
     my $chain = "venet0-$vmid-$direction";
 
-    ruleset_create_vm_chain($ruleset, $chain, $options, undef, $direction);
+    ruleset_create_vm_chain($ruleset, $chain, $options, $hostfw_options, undef, $direction);
 
     ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $chain, 'venet', $direction);
 
@@ -1593,18 +1646,19 @@ sub generate_venet_rules_direction {
 }
 
 sub generate_tap_rules_direction {
-    my ($ruleset, $cluster_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $bridge, $direction) = @_;
+    my ($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $bridge, $direction) = @_;
 
     my $lc_direction = lc($direction);
 
     my $rules = $vmfw_conf->{rules};
 
     my $options = $vmfw_conf->{options};
+    my $hostfw_options = $hostfw_conf->{options};
     my $loglevel = get_option_log_level($options, "log_level_${lc_direction}");
 
     my $tapchain = "$iface-$direction";
 
-    ruleset_create_vm_chain($ruleset, $tapchain, $options, $macaddr, $direction);
+    ruleset_create_vm_chain($ruleset, $tapchain, $options, $hostfw_options, $macaddr, $direction);
 
     ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $tapchain, $netid, $direction, $options);
 
@@ -1625,10 +1679,10 @@ sub generate_tap_rules_direction {
 
     # plug the tap chain to bridge chain
     if ($direction eq 'IN') {
-	ruleset_insertrule($ruleset, "$bridge-IN",
+	ruleset_addrule($ruleset, "$bridge-IN",
 			   "-m physdev --physdev-is-bridged --physdev-out $iface -j $tapchain");
     } else {
-	ruleset_insertrule($ruleset, "$bridge-OUT",
+	ruleset_addrule($ruleset, "$bridge-OUT",
 			   "-m physdev --physdev-in $iface -j $tapchain");
     }
 }
@@ -1636,8 +1690,6 @@ sub generate_tap_rules_direction {
 sub enable_host_firewall {
     my ($ruleset, $hostfw_conf, $cluster_conf) = @_;
 
-    # fixme: allow security groups
-
     my $options = $hostfw_conf->{options};
     my $cluster_options = $cluster_conf->{options};
     my $rules = $hostfw_conf->{rules};
@@ -1788,7 +1840,7 @@ sub parse_fw_rule {
 	die "wrong number of rule elements\n" if scalar(@data) != 3;
 	die "groups disabled\n" if !$allow_groups;
 
-	die "invalid characters in group name\n" if $action !~ m/^${security_group_pattern}$/;
+	die "invalid characters in group name\n" if $action !~ m/^${security_group_name_pattern}$/;
     } else {
 	die "unknown rule type '$type'\n";
     }
@@ -1834,7 +1886,7 @@ sub parse_vmfw_option {
 
     my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
 
-    if ($line =~ m/^(enable|dhcp|macfilter|nosmurfs|tcpflags|ips):\s*(0|1)\s*$/i) {
+    if ($line =~ m/^(enable|dhcp|macfilter|ips):\s*(0|1)\s*$/i) {
 	$opt = lc($1);
 	$value = int($2);
     } elsif ($line =~ m/^(log_level_in|log_level_out):\s*(($loglevels)\s*)?$/i) {
@@ -1897,6 +1949,27 @@ sub parse_clusterfw_option {
     return ($opt, $value);
 }
 
+sub parse_clusterfw_alias {
+    my ($line) = @_;
+
+    # we can add single line comments to the end of the line
+    my $comment = decode('utf8', $1) if $line =~ s/\s*#\s*(.*?)\s*$//;
+
+    if ($line =~ m/^(\S+)\s(\S+)$/) {
+	my ($name, $cidr) = ($1, $2);
+	$cidr =~ s|/32$||;
+	pve_verify_ipv4_or_cidr($cidr);
+	my $data = {
+	    name => $name,
+	    cidr => $cidr,
+	};
+	$data->{comment} = $comment  if $comment;
+	return $data;
+    }
+
+    return undef;
+}
+
 sub parse_vm_fw_rules {
     my ($filename, $fh) = @_;
 
@@ -2002,6 +2075,7 @@ sub parse_cluster_fw_rules {
     my $res = { 
 	rules => [], 
 	options => {}, 
+	aliases => {}, 
 	groups => {}, 
 	group_comments => {}, 
 	ipset => {} ,
@@ -2020,6 +2094,11 @@ sub parse_cluster_fw_rules {
 	    next;
 	}
 
+	if ($line =~ m/^\[aliases\]$/i) {
+	    $section = 'aliases';
+	    next;
+	}
+
 	if ($line =~ m/^\[group\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i) {
 	    $section = 'groups';
 	    $group = lc($1);
@@ -2056,6 +2135,12 @@ sub parse_cluster_fw_rules {
 		$res->{options}->{$opt} = $value;
 	    };
 	    warn "$prefix: $@" if $@;
+	} elsif ($section eq 'aliases') {
+	    eval {
+		my $data = parse_clusterfw_alias($line);
+		$res->{aliases}->{lc($data->{name})} = $data;
+	    };
+	    warn "$prefix: $@" if $@;
 	} elsif ($section eq 'rules') {
 	    my $rule;
 	    eval { $rule = parse_fw_rule($line, 1, 1); };
@@ -2080,12 +2165,14 @@ sub parse_cluster_fw_rules {
 	    my $nomatch = $1;
 	    my $cidr = $2;
 
-	    $cidr =~ s|/32$||;
+	    if($cidr !~ m/^${ip_alias_pattern}$/) {
+		$cidr =~ s|/32$||;
 	    
-	    eval { pve_verify_ipv4_or_cidr($cidr); };
-	    if (my $err = $@) {
-		warn "$prefix: $cidr - $err";
-		next;
+		eval { pve_verify_ipv4_or_cidr($cidr); };
+		if (my $err = $@) {
+		    warn "$prefix: $cidr - $err";
+		    next;
+		}
 	    }
 
 	    my $entry = { cidr => $cidr }; 
@@ -2147,6 +2234,22 @@ sub read_local_vm_config {
     return $vmdata;
 };
 
+sub read_bridges_config {
+
+    my $bridgehash = {};
+
+    dir_glob_foreach('/sys/class/net', 'vmbr(\d+)', sub {
+        my ($bridge) = @_;
+
+	dir_glob_foreach("/sys/class/net/$bridge/brif", '((eth|bond)(\d+)(\.(\d+))?)', sub {
+	    my ($interface) = @_;
+	    push @{$bridgehash->{$bridge}}, $interface;
+	});
+    });
+
+    return $bridgehash;
+};
+
 sub load_vmfw_conf {
     my ($vmid) = @_;
 
@@ -2209,6 +2312,24 @@ my $format_options = sub {
     return $raw;
 };
 
+my $format_aliases = sub {
+    my ($aliases) = @_;
+
+    my $raw = '';
+
+    $raw .= "[ALIASES]\n\n";
+    foreach my $k (keys %$aliases) {
+	my $e = $aliases->{$k};
+	$raw .= "$e->{name} $e->{cidr}";
+	$raw .= " # " . encode('utf8', $e->{comment})
+	    if $e->{comment} && $e->{comment} !~ m/^\s*$/;
+	$raw .= "\n";
+    }
+    $raw .= "\n";
+
+    return $raw;
+};
+
 my $format_ipset = sub {
     my ($options) = @_;
 
@@ -2317,12 +2438,12 @@ sub generate_ipset_chains {
     my ($ipset_ruleset, $fw_conf) = @_;
 
     foreach my $ipset (keys %{$fw_conf->{ipset}}) {
-	generate_ipset($ipset_ruleset, "PVEFW-$ipset", $fw_conf->{ipset}->{$ipset});
+	generate_ipset($ipset_ruleset, "PVEFW-$ipset", $fw_conf->{ipset}->{$ipset}, $fw_conf->{aliases});
     }
 }
 
 sub generate_ipset {
-    my ($ipset_ruleset, $name, $options) = @_;
+    my ($ipset_ruleset, $name, $options, $aliases) = @_;
 
     my $hashsize = scalar(@$options);
     if ($hashsize <= 64) {
@@ -2336,7 +2457,18 @@ sub generate_ipset {
     # remove duplicates
     my $nethash = {};
     foreach my $entry (@$options) {
-	$nethash->{$entry->{cidr}} = $entry;
+	my $cidr = $entry->{cidr};
+	if ($cidr =~ m/^${ip_alias_pattern}$/) {
+	    my $alias = lc($cidr);
+	    if ($aliases->{$alias}) {
+		$entry->{cidr} = $aliases->{$alias}->{cidr};
+		$nethash->{$entry->{cidr}} = $entry;
+	    } else {
+		warn "no such alias '$cidr'\n" if !$aliases->{$alias};
+	    }
+	} else {
+	    $nethash->{$entry->{cidr}} = $entry;
+	}
     }
 
     foreach my $cidr (sort keys %$nethash) {
@@ -2433,6 +2565,9 @@ sub save_clusterfw_conf {
     my $options = $cluster_conf->{options};
     $raw .= &$format_options($options) if scalar(keys %$options);
 
+    my $aliases = $cluster_conf->{aliases};
+    $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
+ 
     foreach my $ipset (sort keys %{$cluster_conf->{ipset}}) {
 	if (my $comment = $cluster_conf->{ipset_comments}->{$ipset}) {
 	    my $utf8comment = encode('utf8', $comment);
@@ -2505,6 +2640,8 @@ sub compile {
     my $vmfw_configs = read_vm_firewall_configs($vmdata);
 
     my $routing_table = read_proc_net_route();
+    
+    my $bridges_config = read_bridges_config();
 
     my $ipset_ruleset = {};
     generate_ipset_chains($ipset_ruleset, $cluster_conf);
@@ -2518,6 +2655,21 @@ sub compile {
 
     my $hostfw_options = $hostfw_conf->{options} || {};
 
+    # fixme: what log level should we use here?
+    my $loglevel = get_option_log_level($hostfw_options, "log_level_out");
+
+    if($hostfw_options->{optimize}){
+
+	my $accept = ruleset_chain_exist($ruleset, "PVEFW-IPS") ? "PVEFW-IPS" : "ACCEPT";
+	ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate INVALID -j DROP");
+	ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate RELATED,ESTABLISHED -j $accept");
+    }
+
+    if ($cluster_conf->{ipset}->{blacklist}){
+	ruleset_addlog($ruleset, "PVEFW-FORWARD", 0, "DROP: ", $loglevel, "-m set --match-set PVEFW-blacklist src");
+	ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m set --match-set PVEFW-blacklist src -j DROP");
+    }
+
     generate_std_chains($ruleset, $hostfw_options);
 
     my $hostfw_enable = !(defined($hostfw_options->{enable}) && ($hostfw_options->{enable} == 0));
@@ -2542,12 +2694,12 @@ sub compile {
 
 	    $bridge .= "v$net->{tag}" if $net->{tag};
 
-	    generate_bridge_chains($ruleset, $hostfw_conf, $bridge, $routing_table);
+	    generate_bridge_chains($ruleset, $hostfw_conf, $bridge, $routing_table, $bridges_config);
 
 	    my $macaddr = $net->{macaddr};
-	    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+	    generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
 					 $vmfw_conf, $vmid, $bridge, 'IN');
-	    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+	    generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
 					 $vmfw_conf, $vmid, $bridge, 'OUT');
 	}
     }
@@ -2562,8 +2714,8 @@ sub compile {
 
 	if ($conf->{ip_address} && $conf->{ip_address}->{value}) {
 	    my $ip = $conf->{ip_address}->{value};
-	    generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN');
-	    generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT');
+	    generate_venet_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, 'IN');
+	    generate_venet_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, 'OUT');
 	}
 
 	if ($conf->{netif} && $conf->{netif}->{value}) {
@@ -2576,28 +2728,18 @@ sub compile {
 		    next; # fixme?
 		}
 
-		generate_bridge_chains($ruleset, $hostfw_conf, $bridge, $routing_table);
+		generate_bridge_chains($ruleset, $hostfw_conf, $bridge, $routing_table, $bridges_config);
 
 		my $macaddr = $d->{mac};
 		my $iface = $d->{host_ifname};
-		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+		generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
 					     $vmfw_conf, $vmid, $bridge, 'IN');
-		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+		generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
 					     $vmfw_conf, $vmid, $bridge, 'OUT');
 	    }
 	}
     }
 
-    if($hostfw_options->{optimize}){
-
-	my $accept = ruleset_chain_exist($ruleset, "PVEFW-IPS") ? "PVEFW-IPS" : "ACCEPT";
-	ruleset_insertrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate RELATED,ESTABLISHED -j $accept");
-	ruleset_insertrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate INVALID -j DROP");
-    }
-
-    # fixme: what log level should we use here?
-    my $loglevel = get_option_log_level($hostfw_options, "log_level_out");
-
     # fixme: should we really block inter-bridge traffic?
 
     # always allow traffic from containers?
@@ -2778,10 +2920,6 @@ sub apply_ruleset {
 
     enable_bridge_firewall();
 
-    update_nf_conntrack_max($hostfw_conf);
-
-    update_nf_conntrack_tcp_timeout_established($hostfw_conf);
-
     my ($ipset_create_cmdlist, $ipset_delete_cmdlist, $ipset_changes) =
 	get_ipset_cmdlist($ipset_ruleset, undef, $verbose);
 
@@ -2820,6 +2958,11 @@ sub apply_ruleset {
     }
 
     die "unable to apply firewall changes\n" if $errors;
+
+    update_nf_conntrack_max($hostfw_conf);
+
+    update_nf_conntrack_tcp_timeout_established($hostfw_conf);
+
 }
 
 sub update_nf_conntrack_max {