PVE::Network: add some common constants

[pve-common.git] / src / PVE / Network.pm

diff --git a/src/PVE/Network.pm b/src/PVE/Network.pm
index 00639f62331d8de1440f3ec25c9c4051e8bf9d06..e51099e1c99dfca05277ba1ec92e5497d9cf0ec6 100644 (file)
--- a/src/PVE/Network.pm
+++ b/src/PVE/Network.pm
@@ -9,6 +9,60 @@ use File::Basename;
 
 # host network related utility functions
 
+our $ipv4_reverse_mask = [
+    '0.0.0.0',
+    '128.0.0.0',
+    '192.0.0.0',
+    '224.0.0.0',
+    '240.0.0.0',
+    '248.0.0.0',
+    '252.0.0.0',
+    '254.0.0.0',
+    '255.0.0.0',
+    '255.128.0.0',
+    '255.192.0.0',
+    '255.224.0.0',
+    '255.240.0.0',
+    '255.248.0.0',
+    '255.252.0.0',
+    '255.254.0.0',
+    '255.255.0.0',
+    '255.255.128.0',
+    '255.255.192.0',
+    '255.255.224.0',
+    '255.255.240.0',
+    '255.255.248.0',
+    '255.255.252.0',
+    '255.255.254.0',
+    '255.255.255.0',
+    '255.255.255.128',
+    '255.255.255.192',
+    '255.255.255.224',
+    '255.255.255.240',
+    '255.255.255.248',
+    '255.255.255.252',
+    '255.255.255.254',
+    '255.255.255.255',
+];
+
+our $ipv4_mask_hash_localnet = {
+    '255.255.0.0' => 16,
+    '255.255.128.0' => 17,
+    '255.255.192.0' => 18,
+    '255.255.224.0' => 19,
+    '255.255.240.0' => 20,
+    '255.255.248.0' => 21,
+    '255.255.252.0' => 22,
+    '255.255.254.0' => 23,
+    '255.255.255.0' => 24,
+    '255.255.255.128' => 25,
+    '255.255.255.192' => 26,
+    '255.255.255.224' => 27,
+    '255.255.255.240' => 28,
+    '255.255.255.248' => 29,
+    '255.255.255.252' => 30,
+};
+
 sub setup_tc_rate_limit {
     my ($iface, $rate, $burst, $debug) = @_;
 
@@ -142,27 +196,45 @@ sub tap_create {
     die "interface activation failed\n" if $@;
 }
 
+sub veth_create {
+    my ($veth, $vethpeer, $bridge, $mac) = @_;
+
+    die "unable to get bridge setting\n" if !$bridge;
+
+    my $bridgemtu = &$read_bridge_mtu($bridge);
+
+    # create veth pair
+    if (! -d "/sys/class/net/$veth") {
+       my $cmd = "/sbin/ip link add name $veth type veth peer name $vethpeer mtu $bridgemtu";
+       $cmd .= " addr $mac" if $mac;
+       system($cmd) == 0 || die "can't create interface $veth\n";
+    }
+
+    # up vethpair
+    &$activate_interface($veth);
+    &$activate_interface($vethpeer);
+}
+
+sub veth_delete {
+    my ($veth) = @_;
+
+    if (-d "/sys/class/net/$veth") {
+       run_command("/sbin/ip link delete dev $veth", outfunc => sub {}, errfunc => sub {});
+    }
+
+}
+
 my $create_firewall_bridge_linux = sub {
     my ($iface, $bridge) = @_;
 
     my ($vmid, $devid) = &$parse_tap_devive_name($iface);
     my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names($vmid, $devid);
 
-    my $bridgemtu = &$read_bridge_mtu($bridge);
-
     &$cond_create_bridge($fwbr);
     &$activate_interface($fwbr);
 
     copy_bridge_config($bridge, $fwbr);
-    # create veth pair
-    if (! -d "/sys/class/net/$vethfw") {
-       system("/sbin/ip link add name $vethfw type veth peer name $vethfwpeer mtu $bridgemtu") == 0 ||
-           die "can't create interface $vethfw\n";
-    }
-
-    # up vethpair
-    &$activate_interface($vethfw);
-    &$activate_interface($vethfwpeer);
+    veth_create($vethfw, $vethfwpeer, $bridge);
 
     &$bridge_add_interface($fwbr, $vethfw);
     &$bridge_add_interface($bridge, $vethfwpeer);
@@ -205,9 +277,7 @@ my $cleanup_firewall_bridge = sub {
     }
 
     # delete old vethfw interface
-    if (-d "/sys/class/net/$vethfw") {
-       run_command("/sbin/ip link delete dev $vethfw", outfunc => sub {}, errfunc => sub {});
-    }
+    veth_delete($vethfw);
 
     # cleanup fwbr bridge
     if (-d "/sys/class/net/$fwbr") {