X-Git-Url: https://git.proxmox.com/?p=pve-firewall.git;a=blobdiff_plain;f=src%2FPVE%2FFirewall.pm;h=cacfedcf19b936947f3bdbdf50632853c05791a4;hp=49ea0c0f49dc03e1767ae1b85c89aac7e5620a4d;hb=b1ef6d2e715d6aeaf67d53ca3270f0d247c407d9;hpb=8b6348df487b75be202de77064053f42d51f1b09

diff --git a/src/PVE/Firewall.pm b/src/PVE/Firewall.pm
index 49ea0c0..cacfedc 100644
--- a/src/PVE/Firewall.pm
+++ b/src/PVE/Firewall.pm
@@ -687,7 +687,7 @@ sub get_etc_protocols {
     return $etc_protocols;
 }
 
-my $ipv4_mask_hash_clusternet = {
+my $ipv4_mask_hash_localnet = {
     '255.255.0.0' => 16,
     '255.255.128.0' => 17,
     '255.255.192.0' => 18,
@@ -705,11 +705,14 @@ my $ipv4_mask_hash_clusternet = {
     '255.255.255.252' => 30,
 };
 
-my $cluster_network;
+my $__local_network;
 
-sub get_cluster_network {
+sub local_network {
+    my ($new_value) = @_;
 
-    return $cluster_network if defined($cluster_network);
+    $__local_network = $new_value if defined($new_value);
+
+    return $__local_network if defined($__local_network);
 
     eval {
 	my $nodename = PVE::INotify::nodename();
@@ -720,20 +723,20 @@ sub get_cluster_network {
    
 	my $routes = PVE::ProcFSTools::read_proc_net_route();
 	foreach my $entry (@$routes) {
-	    my $mask = $ipv4_mask_hash_clusternet->{$entry->{mask}};
+	    my $mask = $ipv4_mask_hash_localnet->{$entry->{mask}};
 	    next if !defined($mask);
 	    return if $mask eq '0.0.0.0';
 	    my $cidr = "$entry->{dest}/$mask";
 	    my $testnet = Net::IP->new($cidr);
 	    if ($testnet->overlaps($testip)) {
-		$cluster_network = $cidr;
+		$__local_network = $cidr;
 		return;
 	    }
 	}
     };
     warn $@ if $@;
 
-    return $cluster_network;
+    return $__local_network;
 }
 
 sub parse_address_list {
@@ -912,10 +915,12 @@ my $rule_properties = {
     sport => {
 	type => 'string', format => 'pve-fw-port-spec',
 	optional => 1,
+	requires => 'proto',
     },
     dport => {
 	type => 'string', format => 'pve-fw-port-spec',
 	optional => 1,
+	requires => 'proto',
     },
     comment => {
 	type => 'string',
@@ -1315,8 +1320,8 @@ sub ruleset_generate_cmdstr {
 	    }
 	}
     } elsif ($rule->{dport} || $rule->{sport}) {
-	warn "ignoring destination port '$rule->{dport}' - no protocol specified\n" if $rule->{dport};
-	warn "ignoring source port '$rule->{sport}' - no protocol specified\n" if $rule->{sport};
+	die "destination port '$rule->{dport}', but no protocol specified\n" if $rule->{dport};
+	die "source port '$rule->{sport}', but no protocol specified\n" if $rule->{sport};
     }
 
     push @cmd, "-m addrtype --dst-type $rule->{dsttype}" if $rule->{dsttype};
@@ -1684,35 +1689,42 @@ sub enable_host_firewall {
     ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
     ruleset_chain_add_input_filters($ruleset, $chain, $options, $cluster_conf, $loglevel);
 
-    my $clusternet = get_cluster_network();
-
-    if ($clusternet) {
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 8006 -j ACCEPT");  # PVE API
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 5900:5999 -j ACCEPT");  # PVE VNC Console 
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 3128 -j ACCEPT");  # SPICE Proxy
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 22 -j ACCEPT");  # SSH
- 
-	# corosync
-	my $corosync_rule = "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j ACCEPT"
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -d $clusternet $corosync_rule");
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -m addrtype --dst-type MULTICAST $corosync_rule");
-    }
-
     # we use RETURN because we need to check also tap rules
     my $accept_action = 'RETURN';
 
+    ruleset_addrule($ruleset, $chain, "-p igmp -j $accept_action"); # important for multicast
+
     # add host rules first, so that cluster wide rules can be overwritten
     foreach my $rule (@$rules, @$cluster_rules) {
 	$rule->{iface_in} = $rule->{iface} if $rule->{iface};
-	if ($rule->{type} eq 'group') {
-	    ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'IN', $accept_action);
-	} elsif ($rule->{type} eq 'in') {
-	    ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" }, 
-				  undef, $cluster_conf);
-	}
+	eval {
+	    if ($rule->{type} eq 'group') {
+		ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'IN', $accept_action);
+	    } elsif ($rule->{type} eq 'in') {
+		ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" }, 
+				      undef, $cluster_conf);
+	    }
+	};
+	warn $@ if $@;
 	delete $rule->{iface_in};
     }
 
+    # allow standard traffic for management ipset (includes cluster network)
+    my $mngmntsrc = "-m set --match-set PVEFW-management src";
+    ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 8006 -j $accept_action");  # PVE API
+    ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 5900:5999 -j $accept_action");  # PVE VNC Console 
+    ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 3128 -j $accept_action");  # SPICE Proxy
+    ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 22 -j $accept_action");  # SSH
+   
+    my $localnet = local_network();
+
+    # corosync
+    if ($localnet) {
+	my $corosync_rule = "-p udp --dport 5404:5405 -j $accept_action";
+	ruleset_addrule($ruleset, $chain, "-s $localnet -d $localnet $corosync_rule");
+	ruleset_addrule($ruleset, $chain, "-s $localnet -m addrtype --dst-type MULTICAST $corosync_rule");
+    }
+
     # implement input policy
     my $policy = $cluster_options->{policy_in} || 'DROP'; # allow nothing by default
     ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
@@ -1727,27 +1739,38 @@ sub enable_host_firewall {
 
     ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
 
-    if ($clusternet) {
-	my $corosync_rule = "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j ACCEPT";
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -d $clusternet $corosync_rule");
-	ruleset_addrule($ruleset, $chain, "-s $clusternet -m addrtype --dst-type MULTICAST $corosync_rule");
-    }
-
     # we use RETURN because we may want to check other thigs later
     $accept_action = 'RETURN';
 
+    ruleset_addrule($ruleset, $chain, "-p igmp -j $accept_action"); # important for multicast
+
     # add host rules first, so that cluster wide rules can be overwritten
     foreach my $rule (@$rules, @$cluster_rules) {
 	$rule->{iface_out} = $rule->{iface} if $rule->{iface};
-	if ($rule->{type} eq 'group') {
-	    ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'OUT', $accept_action);
-	} elsif ($rule->{type} eq 'out') {
-	    ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" }, 
-				  undef, $cluster_conf);
-	}
+	eval {
+	    if ($rule->{type} eq 'group') {
+		ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'OUT', $accept_action);
+	    } elsif ($rule->{type} eq 'out') {
+		ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" }, 
+				      undef, $cluster_conf);
+	    }
+	};
+	warn $@ if $@;
 	delete $rule->{iface_out};
     }
 
+    # allow standard traffic on cluster network
+    if ($localnet) {
+	ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 8006 -j $accept_action");  # PVE API
+	ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 22 -j $accept_action");  # SSH
+	ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 5900:5999 -j $accept_action");  # PVE VNC Console 
+	ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 3128 -j $accept_action");  # SPICE Proxy
+ 
+	my $corosync_rule = "-p udp --dport 5404:5405 -j $accept_action";
+	ruleset_addrule($ruleset, $chain, "-d $localnet $corosync_rule");
+	ruleset_addrule($ruleset, $chain, "-m addrtype --dst-type MULTICAST $corosync_rule");
+    }
+
     # implement output policy
     $policy = $cluster_options->{policy_out} || 'ACCEPT'; # allow everything by default
     ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
@@ -1961,7 +1984,7 @@ sub parse_clusterfw_option {
     return ($opt, $value);
 }
 
-sub parse_clusterfw_alias {
+sub parse_alias {
     my ($line) = @_;
 
     # we can add single line comments to the end of the line
@@ -1985,7 +2008,11 @@ sub parse_clusterfw_alias {
 sub parse_vm_fw_rules {
     my ($filename, $fh) = @_;
 
-    my $res = { rules => [], options => {}};
+    my $res = { 
+	rules => [], 
+	options => {},
+	aliases => {},
+    };
 
     my $section;
 
@@ -2017,6 +2044,15 @@ sub parse_vm_fw_rules {
 	    next;
 	}
 
+	if ($section eq 'aliases') {
+	    eval {
+		my $data = parse_alias($line);
+		$res->{aliases}->{lc($data->{name})} = $data;
+	    };
+	    warn "$prefix: $@" if $@;
+	    next;
+	}
+
 	my $rule;
 	eval { $rule = parse_fw_rule($line, 1, 1); };
 	if (my $err = $@) {
@@ -2149,7 +2185,7 @@ sub parse_cluster_fw_rules {
 	    warn "$prefix: $@" if $@;
 	} elsif ($section eq 'aliases') {
 	    eval {
-		my $data = parse_clusterfw_alias($line);
+		my $data = parse_alias($line);
 		$res->{aliases}->{lc($data->{name})} = $data;
 	    };
 	    warn "$prefix: $@" if $@;
@@ -2360,6 +2396,9 @@ sub save_vmfw_conf {
     my $options = $vmfw_conf->{options};
     $raw .= &$format_options($options) if scalar(keys %$options);
 
+    my $aliases = $vmfw_conf->{aliases};
+    $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
+
     my $rules = $vmfw_conf->{rules} || [];
     if (scalar(@$rules)) {
 	$raw .= "[RULES]\n\n";
@@ -2593,11 +2632,9 @@ sub compile {
     if ($vmdata) { # test mode
 	my $testdir = $vmdata->{testdir} || die "no test directory specified";
 	my $filename = "$testdir/cluster.fw";
-	die "missing test file '$filename'\n" if ! -f $filename;
 	$cluster_conf = load_clusterfw_conf($filename);
 
 	$filename = "$testdir/host.fw";
-	die "missing test file '$filename'\n" if ! -f $filename;
 	$hostfw_conf = load_hostfw_conf($filename);
 
 	$vmfw_configs = read_vm_firewall_configs($vmdata, $testdir);
@@ -2612,7 +2649,17 @@ sub compile {
 
 
     $cluster_conf->{ipset}->{venet0} = [];
+ 
+    my $localnet;
+    if ($cluster_conf->{aliases}->{local_network}) {
+	$localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
+    } else {
+	$localnet = local_network() || '127.0.0.0/8';
+	$cluster_conf->{aliases}->{local_network} = { cidr => $localnet };
+    }
 
+    push @{$cluster_conf->{ipset}->{management}}, { cidr => $localnet };
+   
     my $ruleset = {};
 
     ruleset_create_chain($ruleset, "PVEFW-INPUT");
@@ -2648,69 +2695,78 @@ sub compile {
 
     my $hostfw_enable = !(defined($hostfw_options->{enable}) && ($hostfw_options->{enable} == 0));
 
-    enable_host_firewall($ruleset, $hostfw_conf, $cluster_conf) if $hostfw_enable;
+    if ($hostfw_enable) {
+	eval { enable_host_firewall($ruleset, $hostfw_conf, $cluster_conf); };
+	warn $@ if $@; # just to be sure - should not happen
+    }
 
     ruleset_addrule($ruleset, "PVEFW-OUTPUT", "-o venet0 -m set --match-set PVEFW-venet0 dst -j PVEFW-VENET-IN");
 
     # generate firewall rules for QEMU VMs
     foreach my $vmid (keys %{$vmdata->{qemu}}) {
-	my $conf = $vmdata->{qemu}->{$vmid};
-	my $vmfw_conf = $vmfw_configs->{$vmid};
-	next if !$vmfw_conf;
-	next if defined($vmfw_conf->{options}->{enable}) && ($vmfw_conf->{options}->{enable} == 0);
-
-	foreach my $netid (keys %$conf) {
-	    next if $netid !~ m/^net(\d+)$/;
-	    my $net = PVE::QemuServer::parse_net($conf->{$netid});
-	    next if !$net->{firewall};
-	    my $iface = "tap${vmid}i$1";
-
-	    my $macaddr = $net->{macaddr};
-	    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
-					 $vmfw_conf, $vmid, 'IN');
-	    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
-					 $vmfw_conf, $vmid, 'OUT');
-	}
+	eval {
+	    my $conf = $vmdata->{qemu}->{$vmid};
+	    my $vmfw_conf = $vmfw_configs->{$vmid};
+	    return if !$vmfw_conf;
+	    return if !$vmfw_conf->{options}->{enable};
+
+	    foreach my $netid (keys %$conf) {
+		next if $netid !~ m/^net(\d+)$/;
+		my $net = PVE::QemuServer::parse_net($conf->{$netid});
+		next if !$net->{firewall};
+		my $iface = "tap${vmid}i$1";
+
+		my $macaddr = $net->{macaddr};
+		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+					     $vmfw_conf, $vmid, 'IN');
+		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+					     $vmfw_conf, $vmid, 'OUT');
+	    }
+	};
+	warn $@ if $@; # just to be sure - should not happen
     }
 
     # generate firewall rules for OpenVZ containers
     foreach my $vmid (keys %{$vmdata->{openvz}}) {
-	my $conf = $vmdata->{openvz}->{$vmid};
-
-	my $vmfw_conf = $vmfw_configs->{$vmid};
-	next if !$vmfw_conf;
-	next if defined($vmfw_conf->{options}->{enable}) && ($vmfw_conf->{options}->{enable} == 0);
+	eval {
+	    my $conf = $vmdata->{openvz}->{$vmid};
 
-	if ($conf->{ip_address} && $conf->{ip_address}->{value}) {
-	    my $ip = $conf->{ip_address}->{value};
-	    $ip =~ s/\s+/,/g;
-	    parse_address_list($ip); # make sure we have a valid $ip list
+	    my $vmfw_conf = $vmfw_configs->{$vmid};
+	    return if !$vmfw_conf;
+	    return if !$vmfw_conf->{options}->{enable};
 
-	    my @ips = split(',', $ip);
+	    if ($conf->{ip_address} && $conf->{ip_address}->{value}) {
+		my $ip = $conf->{ip_address}->{value};
+		$ip =~ s/\s+/,/g;
+		parse_address_list($ip); # make sure we have a valid $ip list
 
-	    foreach my $singleip (@ips) {
-		my $venet0ipset = {};
-		$venet0ipset->{cidr} = $singleip;
-		push @{$cluster_conf->{ipset}->{venet0}}, $venet0ipset;
-	    }
+		my @ips = split(',', $ip);
 
-	    generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN');
-	    generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT');
-	}
+		foreach my $singleip (@ips) {
+		    my $venet0ipset = {};
+		    $venet0ipset->{cidr} = $singleip;
+		    push @{$cluster_conf->{ipset}->{venet0}}, $venet0ipset;
+		}
 
-	if ($conf->{netif} && $conf->{netif}->{value}) {
-	    my $netif = PVE::OpenVZ::parse_netif($conf->{netif}->{value});
-	    foreach my $netid (keys %$netif) {
-		my $d = $netif->{$netid};
+		generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN');
+		generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT');
+	    }
 
-		my $macaddr = $d->{mac};
-		my $iface = $d->{host_ifname};
-		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
-					     $vmfw_conf, $vmid, 'IN');
-		generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
-					     $vmfw_conf, $vmid, 'OUT');
+	    if ($conf->{netif} && $conf->{netif}->{value}) {
+		my $netif = PVE::OpenVZ::parse_netif($conf->{netif}->{value});
+		foreach my $netid (keys %$netif) {
+		    my $d = $netif->{$netid};
+
+		    my $macaddr = $d->{mac};
+		    my $iface = $d->{host_ifname};
+		    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+						 $vmfw_conf, $vmid, 'IN');
+		    generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
+						 $vmfw_conf, $vmid, 'OUT');
+		}
 	    }
-	}
+	};
+	warn $@ if $@; # just to be sure - should not happen
     }
 
     if(ruleset_chain_exist($ruleset, "PVEFW-IPS")){