| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.onosproject.drivers.juniper; |
| |
| import org.apache.commons.configuration.HierarchicalConfiguration; |
| import org.apache.commons.lang.StringUtils; |
| import org.onlab.packet.ChassisId; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.Ip4Prefix; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.DefaultAnnotations.Builder; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.Port.Type; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| import org.onosproject.net.device.DefaultDeviceDescription; |
| import org.onosproject.net.device.DefaultPortDescription; |
| import org.onosproject.net.device.DeviceDescription; |
| import org.onosproject.net.device.PortDescription; |
| import org.onosproject.net.link.DefaultLinkDescription; |
| import org.onosproject.net.link.LinkDescription; |
| import org.slf4j.Logger; |
| |
| import com.google.common.base.Strings; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import static org.onosproject.drivers.juniper.StaticRoute.DEFAULT_METRIC_STATIC_ROUTE; |
| import static org.onosproject.drivers.juniper.StaticRoute.toFlowRulePriority; |
| import static org.onosproject.net.Device.Type.ROUTER; |
| import static org.onosproject.net.PortNumber.portNumber; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| // Ref: Junos YANG: |
| // https://github.com/Juniper/yang |
| |
| /** |
| * Utility class for Netconf XML for Juniper. |
| * Tested with MX240 junos 14.2 |
| */ |
| public final class JuniperUtils { |
| |
| private static final Logger log = getLogger(JuniperUtils.class); |
| |
| public static final String FAILED_CFG = "Failed to retrieve configuration."; |
| |
| private static final String RPC_TAG_NETCONF_BASE = "<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">"; |
| private static final String RPC_CLOSE_TAG = "</rpc>"; |
| |
| //requests |
| public static final String REQ_LLDP_NBR_INFO = "<get-lldp-neighbors-information/>"; |
| public static final String REQ_SYS_INFO = "<get-system-information/>"; |
| public static final String REQ_MAC_ADD_INFO = "<get-chassis-mac-addresses/>"; |
| public static final String REQ_IF_INFO = "<get-interface-information/>"; |
| |
| //helper strings for parsing |
| private static final String LLDP_LIST_NBR_INFO = "lldp-neighbors-information"; |
| private static final String LLDP_NBR_INFO = "lldp-neighbor-information"; |
| private static final String SYS_INFO = "system-information"; |
| private static final String HW_MODEL = "hardware-model"; |
| private static final String OS_NAME = "os-name"; |
| private static final String OS_VER = "os-version"; |
| private static final String SER_NUM = "serial-number"; |
| private static final String IF_INFO = "interface-information"; |
| private static final String IF_PHY = "physical-interface"; |
| |
| private static final String IF_TYPE = "if-type"; |
| private static final String SPEED = "speed"; |
| private static final String NAME = "name"; |
| private static final String PORT = "port"; |
| private static final String PROTOCOL = "protocol"; |
| |
| private static final String TCP = "tcp"; |
| |
| // seems to be unique index within device |
| private static final String SNMP_INDEX = "snmp-index"; |
| |
| private static final String LLDP_LO_PORT = "lldp-local-port-id"; |
| private static final String LLDP_REM_CHASS = "lldp-remote-chassis-id"; |
| private static final String LLDP_REM_PORT_SUBTYPE = "lldp-remote-port-id-subtype"; |
| private static final String LLDP_REM_PORT = "lldp-remote-port-id"; |
| private static final String LLDP_REM_PORT_DES = "lldp-remote-port-description"; |
| private static final String LLDP_SUBTYPE_MAC = "Mac address"; |
| private static final String LLDP_SUBTYPE_INTERFACE_NAME = "Interface name"; |
| private static final String REGEX_ADD = |
| ".*Private base address\\s*([:,0-9,a-f,A-F]*).*"; |
| private static final Pattern ADD_PATTERN = |
| Pattern.compile(REGEX_ADD, Pattern.DOTALL); |
| |
| public static final String PROTOCOL_NAME = "protocol-name"; |
| |
| private static final String JUNIPER = "JUNIPER"; |
| private static final String UNKNOWN = "UNKNOWN"; |
| |
| /** |
| * Annotation key for interface type. |
| */ |
| static final String AK_IF_TYPE = "ifType"; |
| |
| /** |
| * Annotation key for Logical link-layer encapsulation. |
| */ |
| static final String AK_ENCAPSULATION = "encapsulation"; |
| |
| /** |
| * Annotation key for interface description. |
| */ |
| static final String AK_DESCRIPTION = "description"; |
| |
| /** |
| * Annotation key for interface admin status. "up"/"down" |
| */ |
| static final String AK_ADMIN_STATUS = "adminStatus"; |
| |
| /** |
| * Annotation key for interface operational status. "up"/"down" |
| */ |
| static final String AK_OPER_STATUS = "operStatus"; |
| |
| /** |
| * Annotation key for logical-interfaces parent physical interface name. |
| */ |
| static final String AK_PHYSICAL_PORT_NAME = "physicalPortName"; |
| |
| |
| private static final String NUMERIC_SPEED_REGEXP = "(\\d+)([GM])bps"; |
| |
| /** |
| * {@value #NUMERIC_SPEED_REGEXP} as {@link Pattern}. |
| * Case insensitive |
| */ |
| private static final Pattern SPEED_PATTERN = |
| Pattern.compile(NUMERIC_SPEED_REGEXP, Pattern.CASE_INSENSITIVE); |
| |
| /** |
| * Default port speed {@value} Mbps. |
| */ |
| private static final long DEFAULT_PORT_SPEED = 1000; |
| |
| |
| private JuniperUtils() { |
| //not called, preventing any allocation |
| } |
| |
| /** |
| * Helper method to build a XML schema given a request. |
| * |
| * @param request a tag element of the XML schema |
| * @return string containing the XML schema |
| */ |
| public static String requestBuilder(String request) { |
| return RPC_TAG_NETCONF_BASE + |
| request + RPC_CLOSE_TAG; |
| } |
| |
| /** |
| * Helper method to commit a config. |
| * |
| * @return string contains the result of the commit |
| */ |
| public static String commitBuilder() { |
| return RPC_TAG_NETCONF_BASE + |
| "<commit/>" + RPC_CLOSE_TAG; |
| } |
| |
| /** |
| * Helper method to build the schema for returning to a previously |
| * committed configuration. |
| * |
| * @param versionToReturn Configuration to return to. The range of values is from 0 through 49. |
| * The most recently saved configuration is number 0, |
| * and the oldest saved configuration is number 49. |
| * @return string containing the XML schema |
| */ |
| public static String rollbackBuilder(int versionToReturn) { |
| return RPC_TAG_NETCONF_BASE + |
| "<get-rollback-information>" + |
| "<rollback>" + versionToReturn + "</rollback>" + |
| "</get-rollback-information>" + |
| RPC_CLOSE_TAG; |
| } |
| |
| |
| /** |
| * Helper method to build an XML schema to configure a static route |
| * given a {@link StaticRoute}. |
| * |
| * @param staticRoute the static route to be configured |
| * @return string contains the result of the configuration |
| */ |
| public static String routeAddBuilder(StaticRoute staticRoute) { |
| StringBuilder rpc = new StringBuilder("<configuration>\n"); |
| rpc.append("<routing-options>\n"); |
| rpc.append("<static>\n"); |
| rpc.append("<route>\n"); |
| rpc.append("<destination>" + staticRoute.ipv4Dst().toString() + "</destination>\n"); |
| rpc.append("<next-hop>" + staticRoute.nextHop() + "</next-hop>\n"); |
| |
| if (staticRoute.getMetric() != DEFAULT_METRIC_STATIC_ROUTE) { |
| rpc.append("<metric>" + staticRoute.getMetric() + "</metric>"); |
| } |
| |
| rpc.append("</route>\n"); |
| rpc.append("</static>\n"); |
| rpc.append("</routing-options>\n"); |
| rpc.append("</configuration>\n"); |
| |
| return rpc.toString(); |
| } |
| |
| /** |
| * Helper method to build a XML schema to delete a static route |
| * given a {@link StaticRoute}. |
| * @param staticRoute the static route to be deleted |
| * @return string contains the result of the configuratio |
| */ |
| public static String routeDeleteBuilder(StaticRoute staticRoute) { |
| return "<configuration>\n" + |
| "<routing-options>\n" + |
| "<static>\n" + |
| "<route operation=\"delete\">\n" + |
| "<name>" + staticRoute.ipv4Dst().toString() + "</name>\n" + |
| "</route>\n" + |
| "</static>\n" + |
| "</routing-options>\n" + |
| "</configuration>\n"; |
| } |
| |
| |
| /** |
| * Parses device configuration and returns the device description. |
| * |
| * @param deviceId the id of the device |
| * @param sysInfoCfg system configuration |
| * @param chassisText chassis string |
| * @return device description |
| */ |
| public static DeviceDescription parseJuniperDescription(DeviceId deviceId, |
| HierarchicalConfiguration sysInfoCfg, |
| String chassisText) { |
| HierarchicalConfiguration info = sysInfoCfg.configurationAt(SYS_INFO); |
| |
| String hw = info.getString(HW_MODEL) == null ? UNKNOWN : info.getString(HW_MODEL); |
| String sw = UNKNOWN; |
| if (info.getString(OS_NAME) != null || info.getString(OS_VER) != null) { |
| sw = info.getString(OS_NAME) + " " + info.getString(OS_VER); |
| } |
| String serial = info.getString(SER_NUM) == null ? UNKNOWN : info.getString(SER_NUM); |
| |
| Matcher matcher = ADD_PATTERN.matcher(chassisText); |
| if (matcher.lookingAt()) { |
| String chassis = matcher.group(1); |
| MacAddress chassisMac = MacAddress.valueOf(chassis); |
| return new DefaultDeviceDescription(deviceId.uri(), ROUTER, |
| JUNIPER, hw, sw, serial, |
| new ChassisId(chassisMac.toLong()), |
| DefaultAnnotations.EMPTY); |
| } |
| return new DefaultDeviceDescription(deviceId.uri(), ROUTER, |
| JUNIPER, hw, sw, serial, |
| null, DefaultAnnotations.EMPTY); |
| } |
| |
| /** |
| * Parses device ports configuration and returns a list of |
| * port description. |
| * |
| * @param cfg interface configuration |
| * @return list of interface descriptions of the device |
| */ |
| public static List<PortDescription> parseJuniperPorts(HierarchicalConfiguration cfg) { |
| //This methods ignores some internal ports |
| |
| List<PortDescription> portDescriptions = new ArrayList<>(); |
| List<HierarchicalConfiguration> subtrees = |
| cfg.configurationsAt(IF_INFO); |
| for (HierarchicalConfiguration interfInfo : subtrees) { |
| List<HierarchicalConfiguration> interfaceTree = |
| interfInfo.configurationsAt(IF_PHY); |
| for (HierarchicalConfiguration phyIntf : interfaceTree) { |
| if (phyIntf == null) { |
| continue; |
| } |
| // parse physical Interface |
| parsePhysicalInterface(portDescriptions, phyIntf); |
| } |
| } |
| return portDescriptions; |
| } |
| |
| /** |
| * Parses {@literal physical-interface} tree. |
| * |
| * @param portDescriptions list to populate Ports found parsing configuration |
| * @param phyIntf physical-interface |
| */ |
| private static void parsePhysicalInterface(List<PortDescription> portDescriptions, |
| HierarchicalConfiguration phyIntf) { |
| Builder annotations = DefaultAnnotations.builder(); |
| PortNumber portNumber = portNumber(phyIntf.getString(SNMP_INDEX)); |
| String phyPortName = phyIntf.getString(NAME); |
| if (portNumber == null) { |
| log.debug("Skipping physical-interface {}, no PortNumer", |
| phyPortName); |
| log.trace(" {}", phyIntf); |
| return; |
| } |
| |
| setIfNonNull(annotations, |
| AnnotationKeys.PORT_NAME, |
| phyPortName); |
| |
| setIfNonNull(annotations, |
| AnnotationKeys.PORT_MAC, |
| phyIntf.getString("current-physical-address")); |
| |
| setIfNonNull(annotations, |
| AK_IF_TYPE, |
| phyIntf.getString(IF_TYPE)); |
| |
| setIfNonNull(annotations, |
| AK_DESCRIPTION, |
| phyIntf.getString("description")); |
| |
| boolean opUp = phyIntf.getString("oper-status", "down").equals("up"); |
| annotations.set(AK_OPER_STATUS, toUpDown(opUp)); |
| |
| boolean admUp = phyIntf.getString("admin-status", "down").equals("up"); |
| annotations.set(AK_ADMIN_STATUS, toUpDown(admUp)); |
| |
| long portSpeed = toMbps(phyIntf.getString(SPEED)); |
| |
| portDescriptions.add(DefaultPortDescription.builder() |
| .withPortNumber(portNumber) |
| .isEnabled(admUp && opUp) |
| .type(Type.COPPER) |
| .portSpeed(portSpeed) |
| .annotations(annotations.build()).build()); |
| |
| // parse each logical Interface |
| for (HierarchicalConfiguration logIntf : phyIntf.configurationsAt("logical-interface")) { |
| if (logIntf == null) { |
| continue; |
| } |
| PortNumber lPortNumber = safePortNumber(logIntf.getString(SNMP_INDEX)); |
| if (lPortNumber == null) { |
| log.debug("Skipping logical-interface {} under {}, no PortNumer", |
| logIntf.getString(NAME), phyPortName); |
| log.trace(" {}", logIntf); |
| continue; |
| } |
| |
| Builder lannotations = DefaultAnnotations.builder(); |
| setIfNonNull(lannotations, |
| AnnotationKeys.PORT_NAME, |
| logIntf.getString(NAME)); |
| setIfNonNull(lannotations, |
| AK_PHYSICAL_PORT_NAME, |
| phyPortName); |
| |
| String afName = logIntf.getString("address-family.address-family-name"); |
| String address = logIntf.getString("address-family.interface-address.ifa-local"); |
| if (afName != null && address != null) { |
| // e.g., inet : IPV4, inet6 : IPV6 |
| setIfNonNull(lannotations, afName, address); |
| } |
| |
| // preserving former behavior |
| setIfNonNull(lannotations, |
| "ip", |
| logIntf.getString("address-family.interface-address.ifa-local")); |
| |
| setIfNonNull(lannotations, |
| AK_ENCAPSULATION, logIntf.getString("encapsulation")); |
| |
| // TODO confirm if this is correct. |
| // Looking at sample data, |
| // it seemed all logical loop-back interfaces were down |
| boolean lEnabled = logIntf.getString("if-config-flags.iff-up") != null; |
| |
| portDescriptions.add(DefaultPortDescription.builder() |
| .withPortNumber(lPortNumber) |
| .isEnabled(admUp && opUp && lEnabled) |
| .type(Type.COPPER) |
| .portSpeed(portSpeed).annotations(lannotations.build()) |
| .build()); |
| } |
| } |
| |
| /** |
| * Port status as "up"/"down". |
| * |
| * @param portStatus port status |
| * @return "up" if {@code portStats} is {@literal true}, "down" otherwise |
| */ |
| static String toUpDown(boolean portStatus) { |
| return portStatus ? "up" : "down"; |
| } |
| |
| /** |
| * Translate interface {@literal speed} value as Mbps value. |
| * |
| * Note: {@literal Unlimited} and unrecognizable string will be treated as |
| * {@value #DEFAULT_PORT_SPEED} Mbps. |
| * |
| * @param speed in String |
| * @return Mbps |
| */ |
| static long toMbps(String speed) { |
| String s = Strings.nullToEmpty(speed).trim().toLowerCase(); |
| Matcher matcher = SPEED_PATTERN.matcher(s); |
| if (matcher.matches()) { |
| // numeric |
| long n = Long.parseLong(matcher.group(1)); |
| String unit = matcher.group(2); |
| if ("m".equalsIgnoreCase(unit)) { |
| // Mbps |
| return n; |
| } else { |
| // assume Gbps |
| return 1000 * n; |
| } |
| } |
| log.trace("Treating unknown speed value {} as default", speed); |
| // Unlimited or unrecognizable |
| return DEFAULT_PORT_SPEED; |
| } |
| |
| /** |
| * Sets annotation entry if {@literal value} was not {@literal null}. |
| * |
| * @param builder Annotation Builder |
| * @param key Annotation key |
| * @param value Annotation value (can be {@literal null}) |
| */ |
| static void setIfNonNull(Builder builder, String key, String value) { |
| if (value != null) { |
| builder.set(key, value.trim()); |
| } |
| } |
| |
| /** |
| * Creates PortNumber instance from String. |
| * |
| * Instead for throwing Exception, it will return null on format error. |
| * |
| * @param s port number as string |
| * @return PortNumber instance or null on error |
| */ |
| static PortNumber safePortNumber(String s) { |
| try { |
| return portNumber(s); |
| } catch (RuntimeException e) { |
| log.trace("Failed parsing PortNumber {}", s, e); |
| } |
| return null; |
| } |
| |
| /** |
| * Create two LinkDescriptions corresponding to the bidirectional links. |
| * |
| * @param localDevId the identity of the local device |
| * @param localPort the port of the local device |
| * @param remoteDevId the identity of the remote device |
| * @param remotePort the port of the remote device |
| * @param descs the collection to which the link descriptions |
| * should be added |
| */ |
| public static void createBiDirLinkDescription(DeviceId localDevId, |
| Port localPort, |
| DeviceId remoteDevId, |
| Port remotePort, |
| Set<LinkDescription> descs) { |
| |
| ConnectPoint local = new ConnectPoint(localDevId, localPort.number()); |
| ConnectPoint remote = new ConnectPoint(remoteDevId, remotePort.number()); |
| DefaultAnnotations annotations = DefaultAnnotations.builder() |
| .set(AnnotationKeys.LAYER, "ETHERNET") |
| .build(); |
| descs.add(new DefaultLinkDescription( |
| local, remote, Link.Type.DIRECT, true, annotations)); |
| descs.add(new DefaultLinkDescription( |
| remote, local, Link.Type.DIRECT, true, annotations)); |
| } |
| |
| /** |
| * Create one way LinkDescriptions. |
| * |
| * @param localDevId the identity of the local device |
| * @param localPort the port of the local device |
| * @param remoteDevId the identity of the remote device |
| * @param remotePort the port of the remote device |
| * @param descs the collection to which the link descriptions |
| * should be added |
| */ |
| public static void createOneWayLinkDescription(DeviceId localDevId, |
| Port localPort, |
| DeviceId remoteDevId, |
| Port remotePort, |
| Set<LinkDescription> descs) { |
| |
| ConnectPoint local = new ConnectPoint(localDevId, localPort.number()); |
| ConnectPoint remote = new ConnectPoint(remoteDevId, remotePort.number()); |
| DefaultAnnotations annotations = DefaultAnnotations.builder() |
| .set(AnnotationKeys.LAYER, "ETHERNET") |
| .build(); |
| descs.add(new DefaultLinkDescription( |
| remote, local, Link.Type.DIRECT, true, annotations)); |
| } |
| |
| /** |
| * Parses neighbours discovery information and returns a list of |
| * link abstractions. |
| * |
| * @param info interface configuration |
| * @return set of link abstractions |
| */ |
| public static Set<LinkAbstraction> parseJuniperLldp(HierarchicalConfiguration info) { |
| Set<LinkAbstraction> neighbour = new HashSet<>(); |
| List<HierarchicalConfiguration> subtrees = |
| info.configurationsAt(LLDP_LIST_NBR_INFO); |
| for (HierarchicalConfiguration neighborsInfo : subtrees) { |
| List<HierarchicalConfiguration> neighbors = |
| neighborsInfo.configurationsAt(LLDP_NBR_INFO); |
| for (HierarchicalConfiguration neighbor : neighbors) { |
| String localPortName = neighbor.getString(LLDP_LO_PORT); |
| MacAddress mac = MacAddress.valueOf(neighbor.getString(LLDP_REM_CHASS)); |
| String remotePortId = null; |
| long remotePortIndex = -1; |
| String remotePortIdSubtype = neighbor.getString(LLDP_REM_PORT_SUBTYPE, null); |
| if (remotePortIdSubtype != null) { |
| if (remotePortIdSubtype.equals(LLDP_SUBTYPE_MAC) |
| || remotePortIdSubtype.equals(LLDP_SUBTYPE_INTERFACE_NAME)) { |
| remotePortId = neighbor.getString(LLDP_REM_PORT, null); |
| } else { |
| remotePortIndex = neighbor.getLong(LLDP_REM_PORT, -1); |
| } |
| } |
| String remotePortDescription = neighbor.getString(LLDP_REM_PORT_DES, null); |
| LinkAbstraction link = new LinkAbstraction( |
| localPortName, |
| mac.toLong(), |
| remotePortIndex, |
| remotePortId, |
| remotePortDescription); |
| neighbour.add(link); |
| } |
| } |
| return neighbour; |
| } |
| |
| /** |
| * Device representation of the adjacency at the IP Layer. |
| */ |
| static final class LinkAbstraction { |
| protected String localPortName; |
| protected ChassisId remoteChassisId; |
| protected long remotePortIndex; |
| protected String remotePortId; |
| protected String remotePortDescription; |
| |
| protected LinkAbstraction(String pName, long chassisId, long pIndex, String pPortId, String pDescription) { |
| this.localPortName = pName; |
| this.remoteChassisId = new ChassisId(chassisId); |
| this.remotePortIndex = pIndex; |
| this.remotePortId = pPortId; |
| this.remotePortDescription = pDescription; |
| } |
| } |
| |
| enum OperationType { |
| ADD, |
| REMOVE, |
| } |
| |
| /** |
| * Parses {@literal route-information} tree. |
| * This implementation supports only static routes. |
| * |
| * @param cfg route-information |
| * @return a collection of static routes |
| */ |
| public static Collection<StaticRoute> parseRoutingTable(HierarchicalConfiguration cfg) { |
| |
| Collection<StaticRoute> staticRoutes = new HashSet<>(); |
| HierarchicalConfiguration routeInfo = |
| cfg.configurationAt("route-information"); |
| List<HierarchicalConfiguration> routeTables = routeInfo.configurationsAt("route-table"); |
| for (HierarchicalConfiguration routeTable : routeTables) { |
| List<HierarchicalConfiguration> routes = routeTable.configurationsAt("rt"); |
| for (HierarchicalConfiguration route : routes) { |
| if (route != null) { |
| List<HierarchicalConfiguration> rtEntries = route.configurationsAt("rt-entry"); |
| rtEntries.forEach(rtEntry -> { |
| if (rtEntry.getString(PROTOCOL_NAME) != null && |
| rtEntry.getString(PROTOCOL_NAME).contains("Static")) { |
| parseStaticRoute(rtEntry, |
| route.getString("rt-destination"), |
| rtEntry.getString("metric")) |
| .ifPresent(staticRoutes::add); |
| |
| } |
| }); |
| } |
| } |
| } |
| return staticRoutes; |
| } |
| |
| /** |
| * Parse the {@literal rt-entry} for static routes. |
| * |
| * @param rtEntry rt-entry filtered by {@literal protocol-name} equals to Static |
| * @param destination rt-destination |
| * @return optional of static route |
| */ |
| private static Optional<StaticRoute> parseStaticRoute(HierarchicalConfiguration rtEntry, |
| String destination, String metric) { |
| |
| Ip4Prefix ipDst = Ip4Prefix.valueOf(destination); |
| |
| HierarchicalConfiguration nextHop = rtEntry.configurationAt("nh"); |
| String to = nextHop.getString("to"); |
| if (StringUtils.isEmpty(to)) { |
| return Optional.empty(); |
| } |
| Ip4Address nextHopIp = Ip4Address.valueOf(to); |
| |
| if (metric == null) { |
| return Optional.of(new StaticRoute(ipDst, nextHopIp, false)); |
| } else { |
| return Optional.of(new StaticRoute(ipDst, nextHopIp, false, |
| toFlowRulePriority(Integer.parseInt(metric)))); |
| } |
| } |
| |
| /** |
| * Helper method to build a XML schema for a given "set/merge" Op inJunOS XML Format. |
| * |
| * @param request a CLI command |
| * @return string containing the XML schema |
| */ |
| public static String cliSetRequestBuilder(StringBuilder request) { |
| StringBuilder rpc = new StringBuilder(RPC_TAG_NETCONF_BASE); |
| rpc.append("<edit-config>"); |
| rpc.append("<target><candidate/></target><config>"); |
| rpc.append("<configuration>"); |
| rpc.append(request); |
| rpc.append("</configuration>"); |
| rpc.append("</config></edit-config>"); |
| rpc.append(RPC_CLOSE_TAG); |
| rpc.append("]]>]]>"); |
| return rpc.toString(); |
| } |
| |
| /** |
| * Helper method to build a XML schema for a given "delete Op" in JunOS XML Format. |
| * |
| * @param request a CLI command |
| * @return string containing the XML schema |
| */ |
| public static String cliDeleteRequestBuilder(StringBuilder request) { |
| StringBuilder rpc = new StringBuilder(RPC_TAG_NETCONF_BASE); |
| rpc.append("<edit-config>"); |
| rpc.append("<target><candidate/></target>"); |
| rpc.append("<default-operation>none</default-operation>"); |
| rpc.append("<config>"); |
| rpc.append("<configuration>"); |
| rpc.append(request); |
| rpc.append("</configuration>"); |
| rpc.append("</config></edit-config>"); |
| rpc.append(RPC_CLOSE_TAG); |
| rpc.append("]]>]]>"); |
| return rpc.toString(); |
| } |
| |
| public static List<ControllerInfo> getOpenFlowControllersFromConfig(HierarchicalConfiguration cfg) { |
| List<ControllerInfo> controllers = new ArrayList<ControllerInfo>(); |
| String ipKey = "configuration.protocols.openflow.mode.ofagent-mode.controller.ip"; |
| |
| if (!cfg.configurationsAt(ipKey).isEmpty()) { |
| List<HierarchicalConfiguration> ipNodes = cfg.configurationsAt(ipKey); |
| |
| ipNodes.forEach(ipNode -> { |
| int port = 0; |
| String proto = UNKNOWN; |
| HierarchicalConfiguration protocolNode = ipNode.configurationAt(PROTOCOL); |
| HierarchicalConfiguration tcpNode = protocolNode.configurationAt(TCP); |
| |
| if (!tcpNode.isEmpty()) { |
| String portString = tcpNode.getString(PORT); |
| |
| if (portString != null && !portString.isEmpty()) { |
| port = Integer.parseInt(portString); |
| } |
| |
| proto = TCP; |
| } |
| |
| String ipaddress = ipNode.getString(NAME); |
| |
| if (ipaddress == null) { |
| ipaddress = UNKNOWN; |
| } |
| |
| if (ipaddress.equals(UNKNOWN) || proto.equals(UNKNOWN) || port == 0) { |
| log.error("Controller infomation is invalid. Skip this controller node." + |
| " ipaddress: {}, proto: {}, port: {}", ipaddress, proto, port); |
| return; |
| } |
| |
| controllers.add(new ControllerInfo(IpAddress.valueOf(ipaddress), port, proto)); |
| }); |
| } else { |
| log.error("Controller not present"); |
| } |
| |
| return controllers; |
| } |
| } |