Examples with BgpSpeakers org.onosproject.artemis.BgpSpeakers used on opensource projects

Example 1 with BgpSpeakers

use of org.onosproject.artemis.BgpSpeakers in project onos by opennetworkinglab.

the class ArtemisDeaggregatorImpl method handleArtemisEvent.

/**
 * Handles a artemis event.
 *
 * @param event the artemis event
 */
protected void handleArtemisEvent(ArtemisEvent event) {
    if (event.type().equals(ArtemisEvent.Type.HIJACK_ADDED)) {
        IpPrefix receivedPrefix = (IpPrefix) event.subject();
        log.info("Deaggregator received a prefix " + receivedPrefix.toString());
        // can only de-aggregate /23 subnets and higher
        int cidr = receivedPrefix.prefixLength();
        if (receivedPrefix.prefixLength() < 24) {
            byte[] octets = receivedPrefix.address().toOctets();
            int byteGroup = (cidr + 1) / 8, bitPos = 8 - (cidr + 1) % 8;
            octets[byteGroup] = (byte) (octets[byteGroup] & ~(1 << bitPos));
            String low = IpPrefix.valueOf(IpAddress.Version.INET, octets, cidr + 1).toString();
            octets[byteGroup] = (byte) (octets[byteGroup] | (1 << bitPos));
            String high = IpPrefix.valueOf(IpAddress.Version.INET, octets, cidr + 1).toString();
            String[] prefixes = { low, high };
            bgpSpeakers.forEach(bgpSpeakers -> bgpSpeakers.announceSubPrefixes(prefixes));
        } else {
            log.warn("Initiating MOAS");
            artemisService.getConfig().ifPresent(config -> config.monitoredPrefixes().forEach(artemisPrefixes -> {
                log.info("checking if {} > {}", artemisPrefixes.prefix(), receivedPrefix);
                if (artemisPrefixes.prefix().contains(receivedPrefix)) {
                    artemisPrefixes.moas().forEach(moasAddress -> {
                        log.info("Creating a client for {}", moasAddress);
                        MoasClientController client = new MoasClientController(packetProcessor, moasAddress, config.moasInfo().getTunnelPoints().iterator().next().getLocalIp(), receivedPrefix);
                        log.info("Running client");
                        client.run();
                        moasClientControllers.add(client);
                    });
                }
            }));
        }
    }
}