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org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier Maven / Gradle / Ivy
/*
* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.lispflowmapping.lisp.util;
import com.google.common.io.BaseEncoding;
import com.google.common.net.InetAddresses;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.UnknownHostException;
import java.util.List;
import java.util.Set;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.AfiList;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ApplicationData;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.AsNumber;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.DistinguishedName;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ExplicitLocatorPath;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.InstanceId;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.KeyValueAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Mac;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.NoAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ServicePath;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.SourceDestKey;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.explicit.locator.path.explicit.locator.path.Hop;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.explicit.locator.path.explicit.locator.path.Hop.LrsBits;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4Binary;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4PrefixBinary;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6Binary;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6PrefixBinary;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.XtrId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Utility class with static methods returning string representations of
* supported LISP address types, both for use in URLs and for user friendly
* output.
*
* @author Lorand Jakab
*
*/
public final class LispAddressStringifier {
protected static final Logger LOG = LoggerFactory.getLogger(LispAddressStringifier.class);
private static final String PREFIX_SEPARATOR = ":";
/*
* In the unlikely event that a AFI 0 address is used a key, we use a
* sequence number to ensure uniqueness
*/
protected static int noAddrSeq = 0;
/*
* There are three possible destinations for rendering an address as a
* string:
*
* * General user interaction, like log and CLI output, GUI
* representation, etc.
* * As a URI string that is the entry key in the MD-SAL datastore
* * As a URL string that is the same as the URI string, except for
* characters not accepted in URLs are percent encoded (e.g. '/' is
* encoded as '%2f'
*/
protected enum Destination {
USER,
URI,
URL;
}
// Utility class, should not be instantiated
private LispAddressStringifier() {
}
public static String getString(LispAddress lispAddress) {
return getAddrString(Destination.USER, lispAddress);
}
public static String getString(Set eids) {
StringBuilder sb = new StringBuilder("{");
boolean first = true;
for (Eid eid : eids) {
if (!first) {
sb.append(", ");
}
sb.append(getString(eid));
first = false;
}
sb.append("}");
return sb.toString();
}
public static String getString(Address address) {
return getAddrString(Destination.USER, address, null);
}
public static String getString(XtrId xtrId) {
return getXtrIdString(xtrId);
}
public static String getURIString(LispAddress lispAddress) {
return getAddrString(Destination.URI, lispAddress);
}
public static String getURIString(XtrId xtrId) {
return getXtrIdString(xtrId);
}
public static String getURLString(LispAddress lispAddress) {
return getAddrString(Destination.URL, lispAddress);
}
public static String getURLString(XtrId xtrId) {
return getXtrIdString(xtrId);
}
private static String getXtrIdString(XtrId xtrId) {
return BaseEncoding.base16().encode(xtrId.getValue());
}
private static String getAddrString(Destination dst, LispAddress lispAddress) {
if (lispAddress == null) {
return "null";
}
Address addr = lispAddress.getAddress();
Long vni = null;
if (lispAddress.getVirtualNetworkId() != null) {
vni = lispAddress.getVirtualNetworkId().getValue().toJava();
}
return getAddrString(dst, addr, vni);
}
private static String getAddrString(Destination dst, Address addr, Long virtualNetworkId) {
String prefix = "";
String vni = "";
String address = "";
if (virtualNetworkId != null) {
vni = "[" + virtualNetworkId + "] ";
}
if (addr instanceof Ipv4) {
prefix = "ipv4" + PREFIX_SEPARATOR;
address = getStringFromIpv4(dst, (Ipv4) addr);
} else if (addr instanceof Ipv4Binary) {
prefix = "ipv4" + PREFIX_SEPARATOR;
address = getStringFromIpv4Binary(dst, (Ipv4Binary) addr);
} else if (addr instanceof Ipv4Prefix) {
prefix = "ipv4" + PREFIX_SEPARATOR;
address = getStringFromIpv4Prefix(dst, (Ipv4Prefix) addr);
} else if (addr instanceof Ipv4PrefixBinary) {
prefix = "ipv4" + PREFIX_SEPARATOR;
address = getStringFromIpv4PrefixBinary(dst, (Ipv4PrefixBinary) addr);
} else if (addr instanceof Ipv6) {
prefix = "ipv6" + PREFIX_SEPARATOR;
address = getStringFromIpv6(dst, (Ipv6) addr);
} else if (addr instanceof Ipv6Binary) {
prefix = "ipv6" + PREFIX_SEPARATOR;
address = getStringFromIpv6Binary(dst, (Ipv6Binary) addr);
} else if (addr instanceof Ipv6Prefix) {
prefix = "ipv6" + PREFIX_SEPARATOR;
address = getStringFromIpv6Prefix(dst, (Ipv6Prefix) addr);
} else if (addr instanceof Ipv6PrefixBinary) {
prefix = "ipv6" + PREFIX_SEPARATOR;
address = getStringFromIpv6PrefixBinary(dst, (Ipv6PrefixBinary) addr);
} else if (addr instanceof Mac) {
prefix = "mac" + PREFIX_SEPARATOR;
address = getStringFromMac(dst, (Mac) addr);
} else if (addr instanceof InstanceId) {
SimpleAddress pa = ((InstanceId)addr).getInstanceId().getAddress();
// Instance ID is a separate parent hierarchy, so we use the simple address prefix
prefix = LispSimpleAddressStringifier.getURLPrefix(pa) + PREFIX_SEPARATOR;
address = getStringFromInstanceId(dst, (InstanceId) addr);
} else if (addr instanceof NoAddress) {
prefix = "no" + PREFIX_SEPARATOR;
address = getStringFromNoAddress(dst, (NoAddress) addr);
} else if (addr instanceof DistinguishedName) {
prefix = "dn" + PREFIX_SEPARATOR;
address = getStringFromDistinguishedName(dst, (DistinguishedName) addr);
} else if (addr instanceof AsNumber) {
prefix = "as" + PREFIX_SEPARATOR;
address = getStringFromAsNumber(dst, (AsNumber) addr);
} else if (addr instanceof AfiList) {
prefix = "list" + PREFIX_SEPARATOR;
address = getStringFromAfiList(dst, (AfiList) addr);
} else if (addr instanceof ApplicationData) {
prefix = "appdata" + PREFIX_SEPARATOR;
address = getStringFromApplicationData(dst, (ApplicationData) addr);
} else if (addr instanceof ExplicitLocatorPath) {
prefix = "elp" + PREFIX_SEPARATOR;
address = getStringFromExplicitLocatorPath(dst, (ExplicitLocatorPath) addr);
} else if (addr instanceof SourceDestKey) {
prefix = "srcdst" + PREFIX_SEPARATOR;
address = getStringFromSourceDestKey(dst, (SourceDestKey) addr);
} else if (addr instanceof KeyValueAddress) {
prefix = "kv" + PREFIX_SEPARATOR;
address = getStringFromKeyValueAddress(dst, (KeyValueAddress) addr);
} else if (addr instanceof ServicePath) {
prefix = "sp" + PREFIX_SEPARATOR;
address = getStringFromServicePath(dst, (ServicePath) addr);
} else {
return null;
}
if (dst == Destination.USER) {
return vni + address;
} else {
return prefix + address;
}
}
private static String getPrefixString(Destination dst, String prefix) {
if (dst == Destination.URL) {
return prefix.replace("/", "%2f");
} else {
return prefix;
}
}
protected static String getStringFromNoAddress(Destination dst, NoAddress addr) {
// AFI = 0
if (dst == Destination.USER) {
return "No Address Present";
} else {
return "" + noAddrSeq++;
}
}
protected static String getStringFromIpv4(Destination dst, Ipv4 addr) {
// AFI = 1; IPv4
return addr.getIpv4().getValue();
}
protected static String getStringFromIpv4Binary(Destination dst, Ipv4Binary addr) {
// AFI = 1; IPv4
try {
return InetAddresses.toAddrString(Inet4Address.getByAddress(addr.getIpv4Binary().getValue()));
} catch (UnknownHostException e) {
LOG.debug("Cannot convert binary IPv4 to string", e);
}
return null;
}
protected static String getStringFromIpv4Prefix(Destination dst, Ipv4Prefix addr) {
// AFI = 1; IPv4
String prefix = addr.getIpv4Prefix().getValue();
return getPrefixString(dst, prefix);
}
protected static String getStringFromIpv4PrefixBinary(Destination dst, Ipv4PrefixBinary addr) {
// AFI = 1; IPv4
try {
StringBuilder prefixBuilder = new StringBuilder(InetAddresses.toAddrString(
Inet4Address.getByAddress(addr.getIpv4AddressBinary().getValue())));
prefixBuilder.append('/');
prefixBuilder.append(addr.getIpv4MaskLength().toString());
return getPrefixString(dst, prefixBuilder.toString());
} catch (UnknownHostException e) {
LOG.debug("Cannot convert binary IPv4 prefix to string", e);
}
return null;
}
protected static String getStringFromIpv6(Destination dst, Ipv6 addr) {
// AFI = 2; IPv6
return addr.getIpv6().getValue();
}
protected static String getStringFromIpv6Binary(Destination dst, Ipv6Binary addr) {
// AFI = 2; IPv6
try {
return InetAddresses.toAddrString(Inet6Address.getByAddress(addr.getIpv6Binary().getValue()));
} catch (UnknownHostException e) {
LOG.debug("Cannot convert binary IPv6 to string", e);
}
return null;
}
protected static String getStringFromIpv6Prefix(Destination dst, Ipv6Prefix addr) {
// AFI = 2; IPv6
return addr.getIpv6Prefix().getValue();
}
protected static String getStringFromIpv6PrefixBinary(Destination dst, Ipv6PrefixBinary addr) {
// AFI = 2; IPv5
try {
StringBuilder prefixBuilder = new StringBuilder(InetAddresses.toAddrString(
Inet6Address.getByAddress(addr.getIpv6AddressBinary().getValue())));
prefixBuilder.append('/');
prefixBuilder.append(addr.getIpv6MaskLength().toString());
return getPrefixString(dst, prefixBuilder.toString());
} catch (UnknownHostException e) {
LOG.debug("Cannot convert binary IPv6 prefix to string", e);
}
return null;
}
protected static String getStringFromDistinguishedName(Destination dst, DistinguishedName addr) {
// AFI = 17; Distinguished Name
return addr.getDistinguishedName().getValue();
}
protected static String getStringFromAsNumber(Destination dst, AsNumber addr) {
// AFI = 18; Autonomous System Number
return "AS" + addr.getAsNumber().getValue();
}
protected static String getStringFromAfiList(Destination dst, AfiList addr) {
// AFI 16387, LCAF Type 1; Address List
// Example rendering:
// {192.0.2.1,192.0.2.2,2001:db8::1}
StringBuilder sb = new StringBuilder("{");
boolean needComma = false;
for (SimpleAddress a : addr.getAfiList().getAddressList()) {
if (needComma) {
sb.append(",");
}
sb.append(a.stringValue());
needComma = true;
}
sb.append("}");
return sb.toString();
}
protected static String getStringFromInstanceId(Destination dst, InstanceId addr) {
// AFI = 16387, LCAF Type 2; Instance ID
// Example rendering:
// [223] 192.0.2.0/24
SimpleAddress pa = addr.getInstanceId().getAddress();
if (dst == Destination.USER) {
return "[" + addr.getInstanceId().getIid().getValue() + "] "
+ LispSimpleAddressStringifier.getString(dst, pa);
} else {
return LispSimpleAddressStringifier.getString(dst, pa);
}
}
protected static String getStringFromApplicationData(Destination dst, ApplicationData addr) {
// AFI = 16387, LCAF Type 4; Application Data
// Example rendering:
// 192.0.2.1!128!17!80-81!6667-7000
return LispSimpleAddressStringifier.getString(dst, addr.getApplicationData().getAddress())
+ "!" + addr.getApplicationData().getIpTos()
+ "!" + addr.getApplicationData().getProtocol()
+ "!" + addr.getApplicationData().getLocalPortLow()
+ "-" + addr.getApplicationData().getLocalPortHigh()
+ "!" + addr.getApplicationData().getRemotePortLow()
+ "-" + addr.getApplicationData().getRemotePortHigh();
}
protected static String getStringFromExplicitLocatorPath(Destination dst, ExplicitLocatorPath addr) {
// AFI = 16387, LCAF Type 10, Explicit Locator Path
// Example rendering:
// {192.0.2.1->192.0.2.2|lps->192.0.2.3}
List hops = addr.getExplicitLocatorPath().getHop();
StringBuilder sb = new StringBuilder();
sb.append("{");
boolean needArrow = false;
for (Hop hop : hops) {
if (needArrow) {
sb.append("->");
}
sb.append(LispSimpleAddressStringifier.getString(dst, hop.getAddress()));
LrsBits lrs = hop.getLrsBits();
if (lrs.getLookup() || lrs.getRlocProbe() || lrs.getStrict()) {
sb.append("|");
}
if (lrs.getLookup()) {
sb.append("l");
}
if (lrs.getRlocProbe()) {
sb.append("p");
}
if (lrs.getStrict()) {
sb.append("s");
}
needArrow = true;
}
sb.append("}");
return sb.toString();
}
protected static String getStringFromSourceDestKey(Destination dst, SourceDestKey addr) {
// AFI = 16387, LCAF Type 12, Source/Destination Key
// Example rendering:
// 192.0.2.1/32|192.0.2.2/32
return getPrefixString(dst, addr.getSourceDestKey().getSource().stringValue()
+ "|" + getPrefixString(dst, addr.getSourceDestKey().getDest().stringValue()));
}
protected static String getStringFromKeyValueAddress(Destination dst, KeyValueAddress addr) {
// AFI = 16387, LCAF Type 15, Key/Value Address Pair
// Example rendering:
// 192.0.2.1=>192.0.2.2
return getPrefixString(dst, addr.getKeyValueAddress().getKey().stringValue()
+ "=>" + getPrefixString(dst, addr.getKeyValueAddress().getValue().stringValue()));
}
protected static String getStringFromMac(Destination dst, Mac addr) {
// AFI = 16389; MAC
return addr.getMac().getValue();
}
protected static String getStringFromServicePath(Destination dst, ServicePath addr) {
// AFI = 16387; LCAF http://tools.ietf.org/html/draft-ermagan-lisp-nsh-00
// Example rendering:
// 42(3)
return getPrefixString(dst, new String(addr.getServicePath().getServicePathId().getValue() + "("
+ addr.getServicePath().getServiceIndex() + ")"));
}
}
