PVE/Network/SDN/Zones/EvpnPlugin.pm

   1 package PVE::Network::SDN::Zones::EvpnPlugin;
   2
   3 use strict;
   4 use warnings;
   5 use PVE::Network::SDN::Zones::VxlanPlugin;
   6 use PVE::Exception qw(raise raise_param_exc);
   7 use PVE::JSONSchema qw(get_standard_option);
   8 use PVE::Tools qw($IPV4RE);
   9 use PVE::INotify;
  10 use PVE::Cluster;
  11 use PVE::Tools;
  12 use Net::IP;
  13
  14 use PVE::Network::SDN::Controllers::EvpnPlugin;
  15
  16 use base('PVE::Network::SDN::Zones::VxlanPlugin');
  17
  18 sub type {
  19     return 'evpn';
  20 }
  21
  22 sub properties {
  23     return {
  24         'vrf-vxlan' => {
  25             type => 'integer',
  26             description => "l3vni.",
  27         },
  28         'controller' => {
  29             type => 'string',
  30             description => "Frr router name",
  31         },
  32         'mac' => {
  33             type => 'string',
  34             description => "Anycast logical router mac address",
  35             optional => 1, format => 'mac-addr'
  36         },
  37         'exitnodes' => get_standard_option('pve-node-list'),
  38     };
  39 }
  40
  41 sub options {
  42
  43     return {
  44         nodes => { optional => 1},
  45         'vrf-vxlan' => { optional => 0 },
  46         controller => { optional => 0 },
  47         exitnodes => { optional => 1 },
  48         mtu => { optional => 1 },
  49         mac => { optional => 1 },
  50         dns => { optional => 1 },
  51         reversedns => { optional => 1 },
  52         dnszone => { optional => 1 },
  53         ipam => { optional => 0 },
  54     };
  55 }
  56
  57 # Plugin implementation
  58 sub generate_sdn_config {
  59     my ($class, $plugin_config, $zoneid, $vnetid, $vnet, $controller, $controller_cfg, $subnet_cfg, $interfaces_config, $config) = @_;
  60
  61     my $tag = $vnet->{tag};
  62     my $alias = $vnet->{alias};
  63     my $mac = $plugin_config->{'mac'};
  64
  65     my $vrf_iface = "vrf_$zoneid";
  66     my $vrfvxlan = $plugin_config->{'vrf-vxlan'};
  67     my $local_node = PVE::INotify::nodename();
  68
  69     die "missing vxlan tag" if !$tag;
  70     die "missing controller" if !$controller;
  71     warn "vlan-aware vnet can't be enabled with evpn plugin" if $vnet->{vlanaware};
  72
  73     my @peers = PVE::Tools::split_list($controller->{'peers'});
  74     my $bgprouter = PVE::Network::SDN::Controllers::EvpnPlugin::find_bgp_controller($local_node, $controller_cfg);
  75     my $loopback = $bgprouter->{loopback} if $bgprouter->{loopback};
  76     my ($ifaceip, $iface) = PVE::Network::SDN::Zones::Plugin::find_local_ip_interface_peers(\@peers, $loopback);
  77
  78     my $mtu = 1450;
  79     $mtu = $interfaces_config->{$iface}->{mtu} - 50 if $interfaces_config->{$iface}->{mtu};
  80     $mtu = $plugin_config->{mtu} if $plugin_config->{mtu};
  81
  82     #vxlan interface
  83     my $vxlan_iface = "vxlan_$vnetid";
  84     my @iface_config = ();
  85     push @iface_config, "vxlan-id $tag";
  86     push @iface_config, "vxlan-local-tunnelip $ifaceip" if $ifaceip;
  87     push @iface_config, "bridge-learning off";
  88     push @iface_config, "bridge-arp-nd-suppress on";
  89
  90     push @iface_config, "mtu $mtu" if $mtu;
  91     push(@{$config->{$vxlan_iface}}, @iface_config) if !$config->{$vxlan_iface};
  92
  93     #vnet bridge
  94     @iface_config = ();
  95
  96     my $address = {};
  97     my $ipv4 = undef;
  98     my $ipv6 = undef;
  99     my $subnets = PVE::Network::SDN::Vnets::get_subnets($vnetid, 1);
 100     foreach my $subnetid (sort keys %{$subnets}) {
 101         my $subnet = $subnets->{$subnetid};
 102         my $cidr = $subnet->{cidr};
 103         my $mask = $subnet->{mask};
 104
 105         my $gateway = $subnet->{gateway};
 106         if ($gateway) {
 107             push @iface_config, "address $gateway/$mask" if !defined($address->{$gateway});
 108             $address->{$gateway} = 1;
 109         }
 110
 111         my $iptables = undef;
 112         my $checkrouteip = undef;
 113         my $ipversion = Net::IP::ip_is_ipv6($gateway) ? 6 : 4;
 114
 115         if ($ipversion == 6) {
 116             $ipv6 = 1;
 117             $iptables = "ip6tables";
 118             $checkrouteip = '2001:4860:4860::8888';
 119         } else {
 120             $ipv4 = 1;
 121             $iptables = "iptables";
 122             $checkrouteip = '8.8.8.8';
 123         }
 124
 125         if ($subnet->{snat}) {
 126
 127             my $is_evpn_gateway = $plugin_config->{'exitnodes'}->{$local_node};
 128
 129             #find outgoing interface
 130             my ($outip, $outiface) = PVE::Network::SDN::Zones::Plugin::get_local_route_ip($checkrouteip);
 131             if ($outip && $outiface && $is_evpn_gateway) {
 132                 #use snat, faster than masquerade
 133                 push @iface_config, "post-up $iptables -t nat -A POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
 134                 push @iface_config, "post-down $iptables -t nat -D POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
 135                 #add conntrack zone once on outgoing interface
 136                 push @iface_config, "post-up $iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1";
 137                 push @iface_config, "post-down $iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1";
 138             }
 139         }
 140     }
 141
 142     push @iface_config, "hwaddress $mac" if $mac;
 143     push @iface_config, "bridge_ports $vxlan_iface";
 144     push @iface_config, "bridge_stp off";
 145     push @iface_config, "bridge_fd 0";
 146     push @iface_config, "mtu $mtu" if $mtu;
 147     push @iface_config, "alias $alias" if $alias;
 148     push @iface_config, "ip-forward on" if $ipv4;
 149     push @iface_config, "ip6-forward on" if $ipv6;
 150     push @iface_config, "arp-accept on" if $ipv4||$ipv6;
 151     push @iface_config, "vrf $vrf_iface" if $vrf_iface;
 152     push(@{$config->{$vnetid}}, @iface_config) if !$config->{$vnetid};
 153
 154     if ($vrf_iface) {
 155         #vrf interface
 156         @iface_config = ();
 157         push @iface_config, "vrf-table auto";
 158         push @iface_config, "post-up ip route add vrf $vrf_iface unreachable default metric 4278198272";
 159         push(@{$config->{$vrf_iface}}, @iface_config) if !$config->{$vrf_iface};
 160
 161         if ($vrfvxlan) {
 162             #l3vni vxlan interface
 163             my $iface_vrf_vxlan = "vrfvx_$zoneid";
 164             @iface_config = ();
 165             push @iface_config, "vxlan-id $vrfvxlan";
 166             push @iface_config, "vxlan-local-tunnelip $ifaceip" if $ifaceip;
 167             push @iface_config, "bridge-learning off";
 168             push @iface_config, "bridge-arp-nd-suppress on";
 169             push @iface_config, "mtu $mtu" if $mtu;
 170             push(@{$config->{$iface_vrf_vxlan}}, @iface_config) if !$config->{$iface_vrf_vxlan};
 171
 172             #l3vni bridge
 173             my $brvrf = "vrfbr_$zoneid";
 174             @iface_config = ();
 175             push @iface_config, "bridge-ports $iface_vrf_vxlan";
 176             push @iface_config, "bridge_stp off";
 177             push @iface_config, "bridge_fd 0";
 178             push @iface_config, "mtu $mtu" if $mtu;
 179             push @iface_config, "vrf $vrf_iface";
 180             push(@{$config->{$brvrf}}, @iface_config) if !$config->{$brvrf};
 181         }
 182     }
 183
 184     return $config;
 185 }
 186
 187 sub on_update_hook {
 188     my ($class, $zoneid, $zone_cfg, $controller_cfg) = @_;
 189
 190     # verify that controller exist
 191     my $controller = $zone_cfg->{ids}->{$zoneid}->{controller};
 192     if (!defined($controller_cfg->{ids}->{$controller})) {
 193         die "controller $controller don't exist";
 194     } else {
 195         die "$controller is not a evpn controller type" if $controller_cfg->{ids}->{$controller}->{type} ne 'evpn';
 196     }
 197
 198     #vrf-vxlan need to be defined
 199
 200     my $vrfvxlan = $zone_cfg->{ids}->{$zoneid}->{'vrf-vxlan'};
 201     # verify that vrf-vxlan is not already declared in another zone
 202     foreach my $id (keys %{$zone_cfg->{ids}}) {
 203         next if $id eq $zoneid;
 204         die "vrf-vxlan $vrfvxlan is already declared in $id"
 205                 if (defined($zone_cfg->{ids}->{$id}->{'vrf-vxlan'}) && $zone_cfg->{ids}->{$id}->{'vrf-vxlan'} eq $vrfvxlan);
 206     }
 207
 208     if (!defined($zone_cfg->{ids}->{$zoneid}->{'mac'})) {
 209         my $dc = PVE::Cluster::cfs_read_file('datacenter.cfg');
 210         $zone_cfg->{ids}->{$zoneid}->{'mac'} = PVE::Tools::random_ether_addr($dc->{mac_prefix});
 211     }
 212 }
 213
 214
 215 sub vnet_update_hook {
 216     my ($class, $vnet_cfg, $vnetid, $zone_cfg) = @_;
 217
 218     my $vnet = $vnet_cfg->{ids}->{$vnetid};
 219     my $tag = $vnet->{tag};
 220
 221     raise_param_exc({ tag => "missing vxlan tag"}) if !defined($tag);
 222     raise_param_exc({ tag => "vxlan tag max value is 16777216"}) if $tag > 16777216;
 223
 224     # verify that tag is not already defined globally (vxlan-id are unique)
 225     foreach my $id (keys %{$vnet_cfg->{ids}}) {
 226         next if $id eq $vnetid;
 227         my $othervnet = $vnet_cfg->{ids}->{$id};
 228         my $other_tag = $othervnet->{tag};
 229         my $other_zoneid = $othervnet->{zone};
 230         my $other_zone = $zone_cfg->{ids}->{$other_zoneid};
 231         next if $other_zone->{type} ne 'vxlan' && $other_zone->{type} ne 'evpn';
 232         raise_param_exc({ tag => "vxlan tag $tag already exist in vnet $id in zone $other_zoneid "}) if $other_tag && $tag eq $other_tag;
 233     }
 234 }
 235
 236
 237 1;
 238
 239