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 my $local_network_sdn_file = "/etc/network/interfaces.d/sdn";
  29
  30 sub sdn_zones_config {
  31     my ($cfg, $id, $noerr) = @_;
  32
  33     die "no sdn zone ID specified\n" if !$id;
  34
  35     my $scfg = $cfg->{ids}->{$id};
  36     die "sdn '$id' does not exist\n" if (!$noerr && !$scfg);
  37
  38     return $scfg;
  39 }
  40
  41 sub config {
  42     my $config = cfs_read_file("sdn/zones.cfg");
  43     return $config;
  44 }
  45
  46 sub get_plugin_config {
  47     my ($vnet) = @_;
  48     my $zoneid = $vnet->{zone};
  49     my $zone_cfg = PVE::Network::SDN::Zones::config();
  50     return $zone_cfg->{ids}->{$zoneid};
  51 }
  52
  53 sub write_config {
  54     my ($cfg) = @_;
  55
  56     cfs_write_file("sdn/zones.cfg", $cfg);
  57 }
  58
  59 sub sdn_zones_ids {
  60     my ($cfg) = @_;
  61
  62     return keys %{$cfg->{ids}};
  63 }
  64
  65 sub complete_sdn_zone {
  66     my ($cmdname, $pname, $cvalue) = @_;
  67
  68     my $cfg = PVE::Network::SDN::config();
  69
  70     return  $cmdname eq 'add' ? [] : [ PVE::Network::SDN::sdn_zones_ids($cfg) ];
  71 }
  72
  73
  74 sub generate_etc_network_config {
  75
  76     my $version = PVE::Cluster::cfs_read_file('sdn/.version');
  77     my $vnet_cfg = PVE::Cluster::cfs_read_file('sdn/vnets.cfg');
  78     my $zone_cfg = PVE::Cluster::cfs_read_file('sdn/zones.cfg');
  79     my $controller_cfg = PVE::Cluster::cfs_read_file('sdn/controllers.cfg');
  80     return if !$vnet_cfg && !$zone_cfg;
  81
  82     my $interfaces_config = PVE::INotify::read_file('interfaces');
  83
  84     #generate configuration
  85     my $config = {};
  86     my $nodename = PVE::INotify::nodename();
  87
  88     foreach my $id (keys %{$vnet_cfg->{ids}}) {
  89         my $vnet = $vnet_cfg->{ids}->{$id};
  90         my $zone = $vnet->{zone};
  91
  92         if(!$zone) {
  93             warn "can't generate vnet $vnet : zone $zone don't exist";
  94             next;
  95         }
  96
  97         my $plugin_config = $zone_cfg->{ids}->{$zone};
  98
  99         if (!defined($plugin_config)) {
 100             warn "can't generate vnet $vnet : zone $zone don't exist";
 101             next;
 102         }
 103
 104         next if defined($plugin_config->{nodes}) && !$plugin_config->{nodes}->{$nodename};
 105
 106         my $controller = undef;
 107         if($plugin_config->{controller}) {
 108             my $controllerid = $plugin_config->{controller};
 109             $controller = $controller_cfg->{ids}->{$controllerid};
 110         }
 111
 112         my $plugin = PVE::Network::SDN::Zones::Plugin->lookup($plugin_config->{type});
 113         $plugin->generate_sdn_config($plugin_config, $zone, $id, $vnet, $controller, $interfaces_config, $config);
 114     }
 115
 116     my $raw_network_config = "\#version:$version\n";
 117     foreach my $iface (sort keys %$config) {
 118         $raw_network_config .= "\n";
 119         $raw_network_config .= "auto $iface\n";
 120         $raw_network_config .= "iface $iface\n";
 121         foreach my $option (@{$config->{$iface}}) {
 122             $raw_network_config .= "\t$option\n";
 123         }
 124     }
 125
 126     return $raw_network_config;
 127 }
 128
 129 sub write_etc_network_config {
 130     my ($rawconfig) = @_;
 131
 132     return if !$rawconfig;
 133
 134     my $writefh = IO::File->new($local_network_sdn_file,">");
 135     print $writefh $rawconfig;
 136     $writefh->close();
 137 }
 138
 139 sub read_etc_network_config_version {
 140     my $versionstr = PVE::Tools::file_read_firstline($local_network_sdn_file);
 141     if ($versionstr =~ m/^\#version:(\d+)$/) {
 142         return $1;
 143     }
 144 }
 145
 146 sub ifquery_check {
 147
 148     my $cmd = ['ifquery', '-a', '-c', '-o','json'];
 149
 150     my $result = '';
 151     my $reader = sub { $result .= shift };
 152
 153     eval {
 154         run_command($cmd, outfunc => $reader);
 155     };
 156
 157     my $resultjson = decode_json($result);
 158     my $interfaces = {};
 159
 160     foreach my $interface (@$resultjson) {
 161         my $name = $interface->{name};
 162         $interfaces->{$name} = {
 163             status => $interface->{status},
 164             config => $interface->{config},
 165             config_status => $interface->{config_status},
 166         };
 167     }
 168
 169     return $interfaces;
 170 }
 171
 172 # improve me : move status code inside plugins ?
 173 sub status {
 174
 175     my $err_config = undef;
 176
 177     my $local_version = PVE::Network::SDN::Zones::read_etc_network_config_version();
 178     my $sdn_version = PVE::Cluster::cfs_read_file('sdn/.version');
 179
 180     return if !$sdn_version;
 181
 182     if (!$local_version) {
 183         $err_config = "local sdn network configuration is not yet generated, please reload";
 184         warn "$err_config\n";
 185     } elsif ($local_version < $sdn_version) {
 186         $err_config = "local sdn network configuration is too old, please reload";
 187         warn "$err_config\n";
 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