my $pve_fw_lock_filename = "/var/lock/pvefw.lck";
-my $default_log_level = 'info';
+my $default_log_level = 'nolog'; # avoid logs by default
my $log_level_hash = {
debug => 7,
{ action => 'PARAM', proto => 'tcp', dport => '6277' },
],
'DHCPfwd' => [
- "Forwarded DHCP traffic (bidirectional)",
+ "Forwarded DHCP traffic",
{ action => 'PARAM', proto => 'udp', dport => '67:68', sport => '67:68' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '67:68', sport => '67:68' },
],
'DNS' => [
"Domain Name System traffic (upd and tcp)",
{ action => 'PARAM', proto => 'udp', dport => '1080' },
],
'GRE' => [
- "Generic Routing Encapsulation tunneling protocol (bidirectional)",
+ "Generic Routing Encapsulation tunneling protocol",
{ action => 'PARAM', proto => '47' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '47' },
],
'Git' => [
"Git distributed revision control traffic",
{ action => 'PARAM', proto => 'tcp', dport => '993' },
],
'IPIP' => [
- "IPIP capsulation traffic (bidirectional)",
+ "IPIP capsulation traffic",
{ action => 'PARAM', proto => '94' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '94' },
],
'IPsec' => [
- "IPsec traffic (bidirectional)",
+ "IPsec traffic",
{ action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
{ action => 'PARAM', proto => '50' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '500', sport => '500' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '50' },
],
'IPsecah' => [
- "IPsec authentication (AH) traffic (bidirectional)",
+ "IPsec authentication (AH) traffic",
{ action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
{ action => 'PARAM', proto => '51' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '500', sport => '500' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '51' },
],
'IPsecnat' => [
- "IPsec traffic and Nat-Traversal (bidirectional)",
+ "IPsec traffic and Nat-Traversal",
{ action => 'PARAM', proto => 'udp', dport => '500' },
{ action => 'PARAM', proto => 'udp', dport => '4500' },
{ action => 'PARAM', proto => '50' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '500' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '4500' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '50' },
],
'IRC' => [
"Internet Relay Chat traffic",
'L2TP' => [
"Layer 2 Tunneling Protocol traffic",
{ action => 'PARAM', proto => 'udp', dport => '1701' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '1701' },
],
'LDAP' => [
"Lightweight Directory Access Protocol traffic",
"Network Time Protocol (ntpd)",
{ action => 'PARAM', proto => 'udp', dport => '123' },
],
- 'NTPbi' => [
- "Bi-directional NTP (for NTP peers)",
- { action => 'PARAM', proto => 'udp', dport => '123' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '123' },
- ],
'OSPF' => [
"OSPF multicast traffic",
{ action => 'PARAM', proto => '89' },
'PPtP' => [
"Point-to-Point Tunneling Protocol",
{ action => 'PARAM', proto => '47' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => '47' },
{ action => 'PARAM', proto => 'tcp', dport => '1723' },
],
'Ping' => [
"Microsoft Remote Desktop Protocol traffic",
{ action => 'PARAM', proto => 'tcp', dport => '3389' },
],
- 'RIPbi' => [
+ 'RIP' => [
"Routing Information Protocol (bidirectional)",
{ action => 'PARAM', proto => 'udp', dport => '520' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '520' },
],
'RNDC' => [
"BIND remote management protocol",
{ action => 'PARAM', proto => 'udp', dport => '1024:65535', sport => '137' },
{ action => 'PARAM', proto => 'tcp', dport => '135,139,445' },
],
- 'SMBBI' => [
- "Microsoft SMB traffic (bidirectional)",
- { action => 'PARAM', proto => 'udp', dport => '135,445' },
- { action => 'PARAM', proto => 'udp', dport => '137:139' },
- { action => 'PARAM', proto => 'udp', dport => '1024:65535', sport => '137' },
- { action => 'PARAM', proto => 'tcp', dport => '135,139,445' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '135,445' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '137:139' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'udp', dport => '1024:65535', sport => '137' },
- { action => 'PARAM', source => 'DEST', dest => 'SOURCE', proto => 'tcp', dport => '135,139,445' },
- ],
'SMBswat' => [
"Samba Web Administration Tool",
{ action => 'PARAM', proto => 'tcp', dport => '901' },
{ action => 'PARAM', proto => 'icmp', dport => 'echo-request' },
],
'VNC' => [
- "VNC traffic for VNC display's 0 - 9",
- { action => 'PARAM', proto => 'tcp', dport => '5900:5909' },
+ "VNC traffic for VNC display's 0 - 99",
+ { action => 'PARAM', proto => 'tcp', dport => '5900:5999' },
],
'VNCL' => [
"VNC traffic from Vncservers to Vncviewers in listen mode",
return $etc_protocols;
}
+my $ipv4_mask_hash_clusternet = {
+ '255.255.0.0' => 16,
+ '255.255.128.0' => 17,
+ '255.255.192.0' => 18,
+ '255.255.224.0' => 19,
+ '255.255.240.0' => 20,
+ '255.255.248.0' => 21,
+ '255.255.252.0' => 22,
+ '255.255.254.0' => 23,
+ '255.255.255.0' => 24,
+ '255.255.255.128' => 25,
+ '255.255.255.192' => 26,
+ '255.255.255.224' => 27,
+ '255.255.255.240' => 28,
+ '255.255.255.248' => 29,
+ '255.255.255.252' => 30,
+};
+
+my $__cluster_network;
+
+sub cluster_network {
+ my ($new_value) = @_;
+
+ $__cluster_network = $new_value if defined($new_value);
+
+ return $__cluster_network if defined($__cluster_network);
+
+ eval {
+ my $nodename = PVE::INotify::nodename();
+
+ my $ip = PVE::Cluster::remote_node_ip($nodename);
+
+ my $testip = Net::IP->new($ip);
+
+ my $routes = PVE::ProcFSTools::read_proc_net_route();
+ foreach my $entry (@$routes) {
+ my $mask = $ipv4_mask_hash_clusternet->{$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;
+ return;
+ }
+ }
+ };
+ warn $@ if $@;
+
+ return $__cluster_network;
+}
+
sub parse_address_list {
my ($str) = @_;
raise_param_exc({ type => "unknown rule type '$type'"});
}
- # fixme: verify $rule->{iface}?
+ if ($rule->{iface}) {
+ eval { PVE::JSONSchema::pve_verify_iface($rule->{iface}); };
+ raise_param_exc({ iface => $@ }) if $@;
+ }
if ($rule->{macro}) {
my $preferred_name = $pve_fw_preferred_macro_names->{lc($rule->{macro})};
}
sub ruleset_create_vm_chain {
- my ($ruleset, $chain, $options, $host_options, $macaddr, $direction) = @_;
+ my ($ruleset, $chain, $options, $macaddr, $direction) = @_;
ruleset_create_chain($ruleset, $chain);
my $accept = generate_nfqueue($options);
}
sub generate_venet_rules_direction {
- my ($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
+ my ($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
my $lc_direction = lc($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, $hostfw_options, undef, $direction);
+ ruleset_create_vm_chain($ruleset, $chain, $options, undef, $direction);
ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $chain, 'venet', $direction);
}
sub generate_tap_rules_direction {
- my ($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $direction) = @_;
+ my ($ruleset, $cluster_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $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, $hostfw_options, $macaddr, $direction);
+ ruleset_create_vm_chain($ruleset, $tapchain, $options, $macaddr, $direction);
ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $tapchain, $netid, $direction, $options);
ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
ruleset_chain_add_input_filters($ruleset, $chain, $options, $cluster_conf, $loglevel);
- ruleset_addrule($ruleset, $chain, "-m addrtype --dst-type MULTICAST -j ACCEPT");
- ruleset_addrule($ruleset, $chain, "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j ACCEPT");
- ruleset_addrule($ruleset, $chain, "-p udp -m udp --dport 9000 -j ACCEPT"); #corosync
-
# we use RETURN because we need to check also tap rules
my $accept_action = 'RETURN';
}
delete $rule->{iface_in};
}
+
+ my $clusternet = cluster_network();
+
+ # allow standard traffic on cluster network
+ if ($clusternet) {
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 8006 -j $accept_action"); # PVE API
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 5900:5999 -j $accept_action"); # PVE VNC Console
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 3128 -j $accept_action"); # SPICE Proxy
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -p tcp --dport 22 -j $accept_action"); # SSH
+
+ # corosync
+ my $corosync_rule = "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j $accept_action";
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -d $clusternet $corosync_rule");
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -m addrtype --dst-type MULTICAST $corosync_rule");
+ }
# implement input policy
my $policy = $cluster_options->{policy_in} || 'DROP'; # allow nothing by default
ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
- ruleset_addrule($ruleset, $chain, "-m addrtype --dst-type MULTICAST -j ACCEPT");
- ruleset_addrule($ruleset, $chain, "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j ACCEPT");
- ruleset_addrule($ruleset, $chain, "-p udp -m udp --dport 9000 -j ACCEPT"); #corosync
-
# we use RETURN because we may want to check other thigs later
$accept_action = 'RETURN';
delete $rule->{iface_out};
}
+ # allow standard traffic on cluster network
+ if ($clusternet) {
+ ruleset_addrule($ruleset, $chain, "-d $clusternet -p tcp --dport 8006 -j $accept_action"); # PVE API
+ ruleset_addrule($ruleset, $chain, "-d $clusternet -p tcp --dport 22 -j $accept_action"); # SSH
+
+ my $corosync_rule = "-p udp -m conntrack --ctstate NEW --dport 5404:5405 -j $accept_action";
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -d $clusternet $corosync_rule");
+ ruleset_addrule($ruleset, $chain, "-s $clusternet -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, $accept_action);
}
sub parse_fw_rule {
- my ($line, $need_iface, $allow_groups) = @_;
+ my ($line, $allow_iface, $allow_groups) = @_;
+
+ my ($type, $action, $macro, $iface, $source, $dest, $proto, $dport, $sport);
- my ($type, $action, $iface, $source, $dest, $proto, $dport, $sport);
+ chomp $line;
# we can add single line comments to the end of the rule
my $comment = decode('utf8', $1) if $line =~ s/#\s*(.*?)\s*$//;
$enable = 0 if $line =~ s/^\|//;
- my @data = split(/\s+/, $line);
- my $expected_elements = $need_iface ? 8 : 7;
-
- die "wrong number of rule elements\n" if scalar(@data) > $expected_elements;
-
- if ($need_iface) {
- ($type, $action, $iface, $source, $dest, $proto, $dport, $sport) = @data
- } else {
- ($type, $action, $source, $dest, $proto, $dport, $sport) = @data;
- }
-
- die "incomplete rule\n" if ! ($type && $action);
-
- my $macro;
-
- $type = lc($type);
+ $line =~ s/^(\S+)\s+(\S+)\s*// ||
+ die "unable to parse rule: $line\n";
+
+ $type = lc($1);
+ $action = $2;
if ($type eq 'in' || $type eq 'out') {
if ($action =~ m/^(ACCEPT|DROP|REJECT)$/) {
die "unknown action '$action'\n";
}
} elsif ($type eq 'group') {
- die "wrong number of rule elements\n" if scalar(@data) > 3;
die "groups disabled\n" if !$allow_groups;
-
die "invalid characters in group name\n" if $action !~ m/^${security_group_name_pattern}$/;
} else {
die "unknown rule type '$type'\n";
}
- if ($need_iface) {
- $iface = undef if $iface && $iface eq '-';
- }
-
- $proto = undef if $proto && $proto eq '-';
- pve_fw_verify_protocol_spec($proto) if $proto;
+ while (length($line)) {
+ if ($line =~ s/^-i (\S+)\s*//) {
+ die "parameter -i not allowed\n" if !$allow_iface;
+ $iface = $1;
+ PVE::JSONSchema::pve_verify_iface($iface);
+ next;
+ }
- $source = undef if $source && $source eq '-';
- $dest = undef if $dest && $dest eq '-';
+ last if $type eq 'group';
- $dport = undef if $dport && $dport eq '-';
- $sport = undef if $sport && $sport eq '-';
+ if ($line =~ s/^-p (\S+)\s*//) {
+ $proto = $1;
+ pve_fw_verify_protocol_spec($proto);
+ next;
+ }
+ if ($line =~ s/^-dport (\S+)\s*//) {
+ $dport = $1;
+ parse_port_name_number_or_range($dport);
+ next;
+ }
+ if ($line =~ s/^-sport (\S+)\s*//) {
+ $sport = $1;
+ parse_port_name_number_or_range($sport);
+ next;
+ }
+ if ($line =~ s/^-source (\S+)\s*//) {
+ $source = $1;
+ parse_address_list($source);
+ next;
+ }
+ if ($line =~ s/^-dest (\S+)\s*//) {
+ $dest = $1;
+ parse_address_list($dest);
+ next;
+ }
- parse_port_name_number_or_range($dport) if defined($dport);
- parse_port_name_number_or_range($sport) if defined($sport);
+ last;
+ }
- parse_address_list($source) if $source;
- parse_address_list($dest) if $dest;
+ die "unable to parse rule parameters: $line\n" if length($line);
return {
type => $type,
}
my $format_rules = sub {
- my ($rules, $need_iface) = @_;
+ my ($rules, $allow_iface) = @_;
my $raw = '';
} else {
$raw .= " " . $rule->{action};
}
- $raw .= " " . ($rule->{iface} || '-') if $need_iface;
+ if ($allow_iface && $rule->{iface}) {
+ $raw .= " -i $rule->{iface}";
+ }
if ($rule->{type} ne 'group') {
- $raw .= " " . ($rule->{source} || '-');
- $raw .= " " . ($rule->{dest} || '-');
- $raw .= " " . ($rule->{proto} || '-');
- $raw .= " " . ($rule->{dport} || '-');
- $raw .= " " . ($rule->{sport} || '-');
+ $raw .= " -source $rule->{source}" if $rule->{source};
+ $raw .= " -dest $rule->{dest}" if $rule->{dest};
+ $raw .= " -p $rule->{proto}" if $rule->{proto};
+ $raw .= " -dport $rule->{dport}" if $rule->{dport};
+ $raw .= " -sport $rule->{sport}" if $rule->{sport};
}
$raw .= " # " . encode('utf8', $rule->{comment})
my $iface = "tap${vmid}i$1";
my $macaddr = $net->{macaddr};
- generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
+ generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
$vmfw_conf, $vmid, 'IN');
- generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
+ generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
$vmfw_conf, $vmid, 'OUT');
}
}
push @{$cluster_conf->{ipset}->{venet0}}, $venet0ipset;
}
- generate_venet_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, 'IN');
- generate_venet_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $vmfw_conf, $vmid, $ip, 'OUT');
+ generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN');
+ generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT');
}
if ($conf->{netif} && $conf->{netif}->{value}) {
my $macaddr = $d->{mac};
my $iface = $d->{host_ifname};
- generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
+ generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
$vmfw_conf, $vmid, 'IN');
- generate_tap_rules_direction($ruleset, $cluster_conf, $hostfw_conf, $iface, $netid, $macaddr,
+ generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
$vmfw_conf, $vmid, 'OUT');
}
}
iptables_restore_cmdlist($cmdlist);
}
+sub init {
+ my $cluster_conf = load_clusterfw_conf();
+ my $cluster_options = $cluster_conf->{options};
+ my $enable = $cluster_options->{enable};
+
+ return if !$enable;
+
+ # load required modules here
+}
+
sub update {
my ($verbose) = @_;
run_locked($code);
}
-
1;
projects / pve-firewall.git / blobdiff