Examples with IpPrefix org.onlab.packet.IpPrefix used on opensource projects

Example 61 with IpPrefix

use of org.onlab.packet.IpPrefix 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);
                    });
                }
            }));
        }
    }
}

Example 62 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class ArtemisConfig method monitoredPrefixes.

/**
 * Gets the set of monitored prefixes with the details (prefix, paths and MOAS).
 *
 * @return artemis class prefixes
 */
Set<ArtemisPrefixes> monitoredPrefixes() {
    Set<ArtemisPrefixes> prefixes = Sets.newHashSet();
    JsonNode prefixesNode = object.path(PREFIXES);
    if (prefixesNode.isMissingNode()) {
        log.warn("prefixes field is null!");
        return prefixes;
    }
    prefixesNode.forEach(jsonNode -> {
        IpPrefix prefix = IpPrefix.valueOf(jsonNode.get(PREFIX).asText());
        JsonNode moasNode = jsonNode.get(MOAS);
        Set<IpAddress> moasIps = Streams.stream(moasNode).map(asn -> IpAddress.valueOf(asn.asText())).collect(Collectors.toSet());
        JsonNode pathsNode = jsonNode.get(PATHS);
        Map<Integer, Map<Integer, Set<Integer>>> paths = Maps.newHashMap();
        pathsNode.forEach(path -> addPath(paths, path));
        prefixes.add(new ArtemisPrefixes(prefix, moasIps, paths));
    });
    return prefixes;
}

Example 63 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class ArtemisDetectorImpl method handleArtemisEvent.

/**
 * Handles a artemis event.
 *
 * @param event the artemis event
 */
void handleArtemisEvent(ArtemisEvent event) {
    // If an instance was deactivated, check whether we need to roll back the upgrade.
    if (event.type().equals(ArtemisEvent.Type.BGPUPDATE_ADDED)) {
        JSONObject take = (JSONObject) event.subject();
        log.info("Received information about monitored prefix " + take.toString());
        artemisService.getConfig().ifPresent(config -> config.monitoredPrefixes().forEach(artemisPrefix -> {
            try {
                IpPrefix prefix = artemisPrefix.prefix(), receivedPrefix;
                receivedPrefix = IpPrefix.valueOf(take.getString("prefix"));
                if (prefix.contains(receivedPrefix)) {
                    JSONArray path = take.getJSONArray("path");
                    int state = artemisPrefix.checkPath(path);
                    if (state >= 100) {
                        log.info("BGP Hijack detected; pushing prefix for hijack Deaggregation");
                        eventDispatcher.post(new ArtemisEvent(ArtemisEvent.Type.HIJACK_ADDED, receivedPrefix));
                    } else {
                        log.info("BGP Update is legit");
                    }
                }
            } catch (JSONException e) {
                log.error(ExceptionUtils.getFullStackTrace(e));
            }
        }));
    }
}

Example 64 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class DhcpFpmAddCommand method doExecute.

@Override
protected void doExecute() {
    IpPrefix prefix = IpPrefix.valueOf(prefixString);
    IpAddress nextHop = IpAddress.valueOf(nextHopString);
    FpmRecord record = new FpmRecord(prefix, nextHop, FpmRecord.Type.DHCP_RELAY);
    DHCP_RELAY_SERVICE.addFpmRecord(prefix, record);
}

Example 65 with IpPrefix

use of org.onlab.packet.IpPrefix in project onos by opennetworkinglab.

the class IntentSynchronizerTest method testWithdraw.

/**
 * Tests the behavior of the withdraw API, both when the synchronizer has
 * leadership and when it does not.
 */
@Test
public void testWithdraw() {
    IpPrefix prefix = Ip4Prefix.valueOf("1.1.1.0/24");
    Intent intent = intentBuilder(prefix, "00:00:00:00:00:01", SW1_ETH1);
    // Submit an intent first so we can withdraw it later
    intentService.submit(intent);
    intentService.withdraw(intent);
    EasyMock.expect(intentService.getIntents()).andReturn(Collections.emptyList()).anyTimes();
    EasyMock.replay(intentService);
    // Give the intent synchronizer leadership so it will submit intents
    // to the intent service
    intentSynchronizer.modifyPrimary(true);
    // Test the submit then withdraw
    intentSynchronizer.submit(intent);
    intentSynchronizer.withdraw(intent);
    EasyMock.verify(intentService);
    // Now we'll remove leadership from the intent synchronizer and verify
    // that it does not withdraw any intents to the intent service when we
    // call the withdraw API
    EasyMock.reset(intentService);
    EasyMock.replay(intentService);
    intentSynchronizer.modifyPrimary(false);
    intentSynchronizer.submit(intent);
    intentSynchronizer.withdraw(intent);
    EasyMock.verify(intentService);
}