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($IPV4RE);
   9 use PVE::INotify;
  10 use PVE::Cluster;
  11 use PVE::Tools;
  12 use Net::IP;
  13
  14 use PVE::Network::SDN::Controllers::EvpnPlugin;
  15
  16 use base('PVE::Network::SDN::Zones::VxlanPlugin');
  17
  18 sub type {
  19     return 'evpn';
  20 }
  21
  22 sub properties {
  23     return {
  24         'vrf-vxlan' => {
  25             type => 'integer',
  26             description => "l3vni.",
  27         },
  28         'controller' => {
  29             type => 'string',
  30             description => "Frr router name",
  31         },
  32         'mac' => {
  33             type => 'string',
  34             description => "Anycast logical router mac address",
  35             optional => 1, format => 'mac-addr'
  36         },
  37         'exitnodes' => get_standard_option('pve-node-list'),
  38     };
  39 }
  40
  41 sub options {
  42     return {
  43         nodes => { optional => 1},
  44         'vrf-vxlan' => { optional => 0 },
  45         controller => { optional => 0 },
  46         exitnodes => { optional => 1 },
  47         mtu => { optional => 1 },
  48         mac => { optional => 1 },
  49         dns => { optional => 1 },
  50         reversedns => { optional => 1 },
  51         dnszone => { optional => 1 },
  52         ipam => { optional => 1 },
  53     };
  54 }
  55
  56 # Plugin implementation
  57 sub generate_sdn_config {
  58     my ($class, $plugin_config, $zoneid, $vnetid, $vnet, $controller, $controller_cfg, $subnet_cfg, $interfaces_config, $config) = @_;
  59
  60     my $tag = $vnet->{tag};
  61     my $alias = $vnet->{alias};
  62     my $mac = $plugin_config->{'mac'};
  63
  64     my $vrf_iface = "vrf_$zoneid";
  65     my $vrfvxlan = $plugin_config->{'vrf-vxlan'};
  66     my $local_node = PVE::INotify::nodename();
  67
  68     die "missing vxlan tag" if !$tag;
  69     die "missing controller" if !$controller;
  70     warn "vlan-aware vnet can't be enabled with evpn plugin" if $vnet->{vlanaware};
  71
  72     my @peers = PVE::Tools::split_list($controller->{'peers'});
  73     my $bgprouter = PVE::Network::SDN::Controllers::EvpnPlugin::find_bgp_controller($local_node, $controller_cfg);
  74     my $loopback = $bgprouter->{loopback} if $bgprouter->{loopback};
  75     my ($ifaceip, $iface) = PVE::Network::SDN::Zones::Plugin::find_local_ip_interface_peers(\@peers, $loopback);
  76     my $is_evpn_gateway = $plugin_config->{'exitnodes'}->{$local_node};
  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 $enable_forward_v4 = undef;
 100     my $enable_forward_v6 = undef;
 101     my $subnets = PVE::Network::SDN::Vnets::get_subnets($vnetid, 1);
 102     foreach my $subnetid (sort keys %{$subnets}) {
 103         my $subnet = $subnets->{$subnetid};
 104         my $cidr = $subnet->{cidr};
 105         my $mask = $subnet->{mask};
 106
 107         my $gateway = $subnet->{gateway};
 108         if ($gateway) {
 109             push @iface_config, "address $gateway/$mask" if !defined($address->{$gateway});
 110             $address->{$gateway} = 1;
 111         }
 112
 113         my $iptables = undef;
 114         my $checkrouteip = undef;
 115         my $ipversion = Net::IP::ip_is_ipv6($gateway) ? 6 : 4;
 116
 117         if ($ipversion == 6) {
 118             $ipv6 = 1;
 119             $iptables = "ip6tables";
 120             $checkrouteip = '2001:4860:4860::8888';
 121             $enable_forward_v6 = 1 if $gateway;
 122         } else {
 123             $ipv4 = 1;
 124             $iptables = "iptables";
 125             $checkrouteip = '8.8.8.8';
 126             $enable_forward_v4 = 1 if $gateway;
 127         }
 128
 129         if ($subnet->{snat}) {
 130
 131             #find outgoing interface
 132             my ($outip, $outiface) = PVE::Network::SDN::Zones::Plugin::get_local_route_ip($checkrouteip);
 133             if ($outip && $outiface && $is_evpn_gateway) {
 134                 #use snat, faster than masquerade
 135                 push @iface_config, "post-up $iptables -t nat -A POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
 136                 push @iface_config, "post-down $iptables -t nat -D POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
 137                 #add conntrack zone once on outgoing interface
 138                 push @iface_config, "post-up $iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1";
 139                 push @iface_config, "post-down $iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1";
 140             }
 141         }
 142     }
 143
 144     push @iface_config, "hwaddress $mac" if $mac;
 145     push @iface_config, "bridge_ports $vxlan_iface";
 146     push @iface_config, "bridge_stp off";
 147     push @iface_config, "bridge_fd 0";
 148     push @iface_config, "mtu $mtu" if $mtu;
 149     push @iface_config, "alias $alias" if $alias;
 150     push @iface_config, "ip-forward on" if $enable_forward_v4;
 151     push @iface_config, "ip6-forward on" if $enable_forward_v6;
 152     push @iface_config, "arp-accept on" if $ipv4||$ipv6;
 153     push @iface_config, "vrf $vrf_iface" if $vrf_iface;
 154     push(@{$config->{$vnetid}}, @iface_config) if !$config->{$vnetid};
 155
 156     if ($vrf_iface) {
 157         #vrf interface
 158         @iface_config = ();
 159         push @iface_config, "vrf-table auto";
 160         push @iface_config, "post-up ip route add vrf $vrf_iface unreachable default metric 4278198272" if !$is_evpn_gateway;
 161         push(@{$config->{$vrf_iface}}, @iface_config) if !$config->{$vrf_iface};
 162
 163         if ($vrfvxlan) {
 164             #l3vni vxlan interface
 165             my $iface_vrf_vxlan = "vrfvx_$zoneid";
 166             @iface_config = ();
 167             push @iface_config, "vxlan-id $vrfvxlan";
 168             push @iface_config, "vxlan-local-tunnelip $ifaceip" if $ifaceip;
 169             push @iface_config, "bridge-learning off";
 170             push @iface_config, "bridge-arp-nd-suppress on";
 171             push @iface_config, "mtu $mtu" if $mtu;
 172             push(@{$config->{$iface_vrf_vxlan}}, @iface_config) if !$config->{$iface_vrf_vxlan};
 173
 174             #l3vni bridge
 175             my $brvrf = "vrfbr_$zoneid";
 176             @iface_config = ();
 177             push @iface_config, "bridge-ports $iface_vrf_vxlan";
 178             push @iface_config, "bridge_stp off";
 179             push @iface_config, "bridge_fd 0";
 180             push @iface_config, "mtu $mtu" if $mtu;
 181             push @iface_config, "vrf $vrf_iface";
 182             push(@{$config->{$brvrf}}, @iface_config) if !$config->{$brvrf};
 183         }
 184     }
 185
 186     return $config;
 187 }
 188
 189 sub on_update_hook {
 190     my ($class, $zoneid, $zone_cfg, $controller_cfg) = @_;
 191
 192     # verify that controller exist
 193     my $controller = $zone_cfg->{ids}->{$zoneid}->{controller};
 194     if (!defined($controller_cfg->{ids}->{$controller})) {
 195         die "controller $controller don't exist";
 196     } else {
 197         die "$controller is not a evpn controller type" if $controller_cfg->{ids}->{$controller}->{type} ne 'evpn';
 198     }
 199
 200     #vrf-vxlan need to be defined
 201
 202     my $vrfvxlan = $zone_cfg->{ids}->{$zoneid}->{'vrf-vxlan'};
 203     # verify that vrf-vxlan is not already declared in another zone
 204     foreach my $id (keys %{$zone_cfg->{ids}}) {
 205         next if $id eq $zoneid;
 206         die "vrf-vxlan $vrfvxlan is already declared in $id"
 207                 if (defined($zone_cfg->{ids}->{$id}->{'vrf-vxlan'}) && $zone_cfg->{ids}->{$id}->{'vrf-vxlan'} eq $vrfvxlan);
 208     }
 209
 210     if (!defined($zone_cfg->{ids}->{$zoneid}->{'mac'})) {
 211         my $dc = PVE::Cluster::cfs_read_file('datacenter.cfg');
 212         $zone_cfg->{ids}->{$zoneid}->{'mac'} = PVE::Tools::random_ether_addr($dc->{mac_prefix});
 213     }
 214 }
 215
 216
 217 sub vnet_update_hook {
 218     my ($class, $vnet_cfg, $vnetid, $zone_cfg) = @_;
 219
 220     my $vnet = $vnet_cfg->{ids}->{$vnetid};
 221     my $tag = $vnet->{tag};
 222
 223     raise_param_exc({ tag => "missing vxlan tag"}) if !defined($tag);
 224     raise_param_exc({ tag => "vxlan tag max value is 16777216"}) if $tag > 16777216;
 225
 226     # verify that tag is not already defined globally (vxlan-id are unique)
 227     foreach my $id (keys %{$vnet_cfg->{ids}}) {
 228         next if $id eq $vnetid;
 229         my $othervnet = $vnet_cfg->{ids}->{$id};
 230         my $other_tag = $othervnet->{tag};
 231         my $other_zoneid = $othervnet->{zone};
 232         my $other_zone = $zone_cfg->{ids}->{$other_zoneid};
 233         next if $other_zone->{type} ne 'vxlan' && $other_zone->{type} ne 'evpn';
 234         raise_param_exc({ tag => "vxlan tag $tag already exist in vnet $id in zone $other_zoneid "}) if $other_tag && $tag eq $other_tag;
 235     }
 236 }
 237
 238
 239 1;
 240
 241