PVE/Network/SDN/Zones.pm

   1 package PVE::Network::SDN::Zones;
   2
   3 use strict;
   4 use warnings;
   5
   6 use Data::Dumper;
   7 use JSON;
   8
   9 use PVE::Tools qw(extract_param dir_glob_regex run_command);
  10 use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
  11 use PVE::Network;
  12
  13 use PVE::Network::SDN::Vnets;
  14 use PVE::Network::SDN::Zones::VlanPlugin;
  15 use PVE::Network::SDN::Zones::QinQPlugin;
  16 use PVE::Network::SDN::Zones::VxlanPlugin;
  17 use PVE::Network::SDN::Zones::EvpnPlugin;
  18 use PVE::Network::SDN::Zones::FaucetPlugin;
  19 use PVE::Network::SDN::Zones::Plugin;
  20
  21 PVE::Network::SDN::Zones::VlanPlugin->register();
  22 PVE::Network::SDN::Zones::QinQPlugin->register();
  23 PVE::Network::SDN::Zones::VxlanPlugin->register();
  24 PVE::Network::SDN::Zones::EvpnPlugin->register();
  25 PVE::Network::SDN::Zones::FaucetPlugin->register();
  26 PVE::Network::SDN::Zones::Plugin->init();
  27
  28
  29 sub sdn_zones_config {
  30     my ($cfg, $id, $noerr) = @_;
  31
  32     die "no sdn zone ID specified\n" if !$id;
  33
  34     my $scfg = $cfg->{ids}->{$id};
  35     die "sdn '$id' does not exist\n" if (!$noerr && !$scfg);
  36
  37     return $scfg;
  38 }
  39
  40 sub config {
  41     my $config = cfs_read_file("sdn/zones.cfg");
  42     return $config;
  43 }
  44
  45 sub get_plugin_config {
  46     my ($vnet) = @_;
  47     my $zoneid = $vnet->{zone};
  48     my $zone_cfg = PVE::Network::SDN::Zones::config();
  49     return $zone_cfg->{ids}->{$zoneid};
  50 }
  51
  52 sub write_config {
  53     my ($cfg) = @_;
  54
  55     cfs_write_file("sdn/zones.cfg", $cfg);
  56 }
  57
  58 sub sdn_zones_ids {
  59     my ($cfg) = @_;
  60
  61     return keys %{$cfg->{ids}};
  62 }
  63
  64 sub complete_sdn_zone {
  65     my ($cmdname, $pname, $cvalue) = @_;
  66
  67     my $cfg = PVE::Network::SDN::config();
  68
  69     return  $cmdname eq 'add' ? [] : [ PVE::Network::SDN::sdn_zones_ids($cfg) ];
  70 }
  71
  72
  73 sub generate_etc_network_config {
  74
  75     my $vnet_cfg = PVE::Cluster::cfs_read_file('sdn/vnets.cfg');
  76     my $zone_cfg = PVE::Cluster::cfs_read_file('sdn/zones.cfg');
  77     my $controller_cfg = PVE::Cluster::cfs_read_file('sdn/controllers.cfg');
  78     return if !$vnet_cfg && !$zone_cfg;
  79
  80     my $interfaces_config = PVE::INotify::read_file('interfaces');
  81
  82     #generate configuration
  83     my $config = {};
  84     my $nodename = PVE::INotify::nodename();
  85
  86     foreach my $id (keys %{$vnet_cfg->{ids}}) {
  87         my $vnet = $vnet_cfg->{ids}->{$id};
  88         my $zone = $vnet->{zone};
  89
  90         if(!$zone) {
  91             warn "can't generate vnet $vnet : zone $zone don't exist";
  92             next;
  93         }
  94
  95         my $plugin_config = $zone_cfg->{ids}->{$zone};
  96
  97         if (!defined($plugin_config)) {
  98             warn "can't generate vnet $vnet : zone $zone don't exist";
  99             next;
 100         }
 101
 102         next if defined($plugin_config->{nodes}) && !$plugin_config->{nodes}->{$nodename};
 103
 104         my $controller = undef;
 105         if($plugin_config->{controller}) {
 106             my $controllerid = $plugin_config->{controller};
 107             $controller = $controller_cfg->{ids}->{$controllerid};
 108         }
 109
 110         my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 111         $plugin->generate_sdn_config($plugin_config, $zone, $id, $vnet, $controller, $interfaces_config, $config);
 112     }
 113
 114     my $raw_network_config = "";
 115     foreach my $iface (sort keys %$config) {
 116         $raw_network_config .= "\n";
 117         $raw_network_config .= "auto $iface\n";
 118         $raw_network_config .= "iface $iface\n";
 119         foreach my $option (@{$config->{$iface}}) {
 120             $raw_network_config .= "\t$option\n";
 121         }
 122     }
 123
 124     return $raw_network_config;
 125 }
 126
 127 sub write_etc_network_config {
 128     my ($rawconfig) = @_;
 129
 130     return if !$rawconfig;
 131     my $sdn_interfaces_file = "/etc/network/interfaces.d/sdn";
 132
 133     my $writefh = IO::File->new($sdn_interfaces_file,">");
 134     print $writefh $rawconfig;
 135     $writefh->close();
 136 }
 137
 138 sub ifquery_check {
 139
 140     my $cmd = ['ifquery', '-a', '-c', '-o','json'];
 141
 142     my $result = '';
 143     my $reader = sub { $result .= shift };
 144
 145     eval {
 146         run_command($cmd, outfunc => $reader);
 147     };
 148
 149     my $resultjson = decode_json($result);
 150     my $interfaces = {};
 151
 152     foreach my $interface (@$resultjson) {
 153         my $name = $interface->{name};
 154         $interfaces->{$name} = {
 155             status => $interface->{status},
 156             config => $interface->{config},
 157             config_status => $interface->{config_status},
 158         };
 159     }
 160
 161     return $interfaces;
 162 }
 163
 164 # improve me : move status code inside plugins ?
 165 sub status {
 166
 167     my $cluster_vnet_file = "/etc/pve/sdn/vnets.cfg";
 168     my $cluster_zone_file = "/etc/pve/sdn/zones.cfg";
 169     my $local_sdn_file = "/etc/network/interfaces.d/sdn";
 170     my $err_config = undef;
 171
 172     return if !-e $cluster_vnet_file && !-e $cluster_zone_file;
 173
 174     if (!-e $local_sdn_file) {
 175
 176         $err_config = "local sdn network configuration is not yet generated, please reload";
 177         warn "$err_config\n";
 178     } else {
 179         # fixme : use some kind of versioning info?
 180         my $cluster_vnet_timestamp = (stat($cluster_vnet_file))[9];
 181         my $cluster_zone_timestamp = (stat($cluster_zone_file))[9];
 182         my $local_sdn_timestamp = (stat($local_sdn_file))[9];
 183
 184         if ($local_sdn_timestamp < $cluster_vnet_timestamp || $local_sdn_timestamp < $cluster_zone_timestamp) {
 185             $err_config = "local sdn network configuration is too old, please reload";
 186             warn "$err_config\n";
 187         }
 188     }
 189
 190     my $status = ifquery_check();
 191
 192     my $vnet_cfg = PVE::Cluster::cfs_read_file('sdn/vnets.cfg');
 193     my $zone_cfg = PVE::Cluster::cfs_read_file('sdn/zones.cfg');
 194     my $nodename = PVE::INotify::nodename();
 195
 196
 197     my $vnet_status = {};
 198     my $zone_status = {};
 199
 200     foreach my $id (sort keys %{$vnet_cfg->{ids}}) {
 201         my $vnet = $vnet_cfg->{ids}->{$id};
 202         my $zone = $vnet->{zone};
 203         next if !$zone;
 204
 205         my $plugin_config = $zone_cfg->{ids}->{$zone};
 206         next if defined($plugin_config->{nodes}) && !$plugin_config->{nodes}->{$nodename};
 207
 208         my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 209         $plugin->status($plugin_config, $zone, $id, $vnet, $err_config, $status, $vnet_status, $zone_status);
 210     }
 211
 212     return($zone_status, $vnet_status);
 213 }
 214
 215 sub get_bridge_vlan {
 216     my ($vnetid) = @_;
 217
 218     my $vnet = PVE::Network::SDN::Vnets::get_vnet($vnetid);
 219
 220     return ($vnetid, undef) if !$vnet; # fallback for classic bridge
 221
 222     my $plugin_config = get_plugin_config($vnet);
 223     my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 224     return $plugin->get_bridge_vlan($plugin_config, $vnetid, $vnet->{tag});
 225 }
 226
 227 sub tap_create {
 228     my ($iface, $bridge) = @_;
 229
 230     my $vnet = PVE::Network::SDN::Vnets::get_vnet($bridge);
 231     if (!$vnet) { # fallback for classic bridge
 232         PVE::Network::tap_create($iface, $bridge);
 233         return;
 234     }
 235
 236     my $plugin_config = get_plugin_config($vnet);
 237     my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 238     $plugin->tap_create($plugin_config, $vnet, $iface, $bridge);
 239 }
 240
 241 sub veth_create {
 242     my ($veth, $vethpeer, $bridge, $hwaddr) = @_;
 243
 244     my $vnet = PVE::Network::SDN::Vnets::get_vnet($bridge);
 245     if (!$vnet) { # fallback for classic bridge
 246         PVE::Network::veth_create($veth, $vethpeer, $bridge, $hwaddr);
 247         return;
 248     }
 249
 250     my $plugin_config = get_plugin_config($vnet);
 251     my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 252     $plugin->veth_create($plugin_config, $vnet, $veth, $vethpeer, $bridge, $hwaddr);
 253 }
 254
 255 sub tap_plug {
 256     my ($iface, $bridge, $tag, $firewall, $trunks, $rate) = @_;
 257
 258     my $vnet = PVE::Network::SDN::Vnets::get_vnet($bridge);
 259     if (!$vnet) { # fallback for classic bridge
 260         PVE::Network::tap_plug($iface, $bridge, $tag, $firewall, $trunks, $rate);
 261         return;
 262     }
 263
 264     my $plugin_config = get_plugin_config($vnet);
 265     my $nodename = PVE::INotify::nodename();
 266
 267     die "vnet $bridge is not allowed on this node\n"
 268         if $plugin_config->{nodes} && !defined($plugin_config->{nodes}->{$nodename});
 269
 270     my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 271     $plugin->tap_plug($plugin_config, $vnet, $iface, $bridge, $firewall, $rate);
 272 }
 273
 274 1;
 275