Examples of com.xensource.xenapi.Network

com.xensource.xenapi.Network
A virtual network @author Citrix Systems, Inc.

    private Answer execute(OvsDeleteFlowCommand cmd) {
        _isOvs = true;


        Connection conn = getConnection();
        try {
            Network nw = setupvSwitchNetwork(conn);
            String bridge = nw.getBridge(conn);
            String result = callHostPlugin(conn, "ovsgre", "ovs_delete_flow", "bridge", bridge,
                    "vmName", cmd.getVmName());


            if (result.equalsIgnoreCase("SUCCESS")) {
                return new Answer(cmd, true, "success to delete flows for " + cmd.getVmName());

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    private OvsSetTagAndFlowAnswer execute(OvsSetTagAndFlowCommand cmd) {
        _isOvs = true;


        Connection conn = getConnection();
        try {
            Network nw = setupvSwitchNetwork(conn);
            String bridge = nw.getBridge(conn);


            /*If VM is domainRouter, this will try to set flow and tag on its
             * none guest network nic. don't worry, it will fail silently at host
             * plugin side
             */

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        _isOvs = true;


        Connection conn = getConnection();
        String bridge = "unkonwn";
        try {
            Network nw = setupvSwitchNetwork(conn);
            bridge = nw.getBridge(conn);


            String result = callHostPlugin(conn, "ovsgre", "ovs_create_gre", "bridge", bridge,
                    "remoteIP", cmd.getRemoteIp(), "greKey", cmd.getKey(), "from",
                    Long.toString(cmd.getFrom()), "to", Long.toString(cmd.getTo()));
            String[] res = result.split(":");

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            NicTO nic = cmd.getNic();
            String mac = nic.getMac();
            VIF vif = getVifByMac(conn, vm, mac);
            if ( vif != null ) {
                vif.unplug(conn);
                Network network = vif.getNetwork(conn);
                vif.destroy(conn);
                try {
                    if (network.getNameLabel(conn).startsWith("VLAN")) {
                        disableVlanNetwork(conn, network);
                    }
                }  catch (Exception e) {
                }
            }

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    }


    private synchronized Network setupvSwitchNetwork(Connection conn) {
        try {
            if (_host.vswitchNetwork == null) {
                Network vswitchNw = null;
                Network.Record rec = new Network.Record();
                String nwName = Networks.BroadcastScheme.VSwitch.toString();
                Set<Network> networks = Network.getByNameLabel(conn, nwName);


                if (networks.size() == 0) {

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     * This method just creates a XenServer network following the tunnel network naming convention
     */
    private synchronized Network findOrCreateTunnelNetwork(Connection conn, long key) {
        try {
            String nwName = "OVSTunnel" + key;
            Network nw = null;
            Network.Record rec = new Network.Record();
            Set<Network> networks = Network.getByNameLabel(conn, nwName);


            if (networks.size() == 0) {
                rec.nameDescription = "tunnel network id# " + key;

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    /**
     * This method creates a XenServer network and configures it for being used as a L2-in-L3 tunneled network
     */
    private synchronized Network configureTunnelNetwork(Connection conn, long networkId, long hostId, int key) {
      try {
        Network nw = findOrCreateTunnelNetwork(conn, key);
        String nwName = "OVSTunnel" + key;
        //Invoke plugin to setup the bridge which will be used by this network
          String bridge = nw.getBridge(conn);
          Map<String,String> nwOtherConfig = nw.getOtherConfig(conn);
          String configuredHosts = nwOtherConfig.get("ovs-host-setup");
          boolean configured = false;
          if (configuredHosts!=null) {
            String hostIdsStr[] = configuredHosts.split(",");
            for (String hostIdStr:hostIdsStr) {
              if (hostIdStr.equals(((Long)hostId).toString())) {
                configured = true;
                break;
              }
            }
          }
          if (!configured) {
              // Plug dom0 vif only if not done before for network and host
              enableXenServerNetwork(conn, nw, nwName, "tunnel network for account " + key);
              String result = callHostPlugin(conn, "ovstunnel", "setup_ovs_bridge", "bridge", bridge,
                               "key", String.valueOf(key),
                               "xs_nw_uuid", nw.getUuid(conn),
                               "cs_host_id", ((Long)hostId).toString());
              //Note down the fact that the ovs bridge has been setup
              String[] res = result.split(":");
              if (res.length != 2 || !res[0].equalsIgnoreCase("SUCCESS")) {
                //TODO: Should make this error not fatal?

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        }
    }
    
    private synchronized void destroyTunnelNetwork(Connection conn, int key) {
      try {
        Network nw = findOrCreateTunnelNetwork(conn, key);
            String bridge = nw.getBridge(conn);
            String result = callHostPlugin(conn, "ovstunnel", "destroy_ovs_bridge", "bridge", bridge);
            String[] res = result.split(":");
            if (res.length != 2 || !res[0].equalsIgnoreCase("SUCCESS")) {
              //TODO: Should make this error not fatal?
              //Can Concurrent VM shutdown/migration/reboot events can cause this method

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            }
            nic.setDeviceId(0);
            nic.setNetworkRateMbps(networkRate);
            nic.setName(name);


            Network network = getNetwork(conn, nic);


            // Determine the correct VIF on DomR to associate/disassociate the
            // IP address with
            VIF correctVif = getCorrectVif(conn, router, network);

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            String msg = "Management interface is on slave(" +mgmtPifRec.uuid + ") of bond("
                    + bond.getUuid(conn) + ") on host(" +_host.uuid + "), please move management interface to bond!";
            s_logger.warn(msg);
            throw new CloudRuntimeException(msg);
        }
        Network nk =  mgmtPifRec.network;
        Network.Record nkRec = nk.getRecord(conn);
        return new XsLocalNetwork(nk, nkRec, mgmtPif, mgmtPifRec);
    }

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