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Merge pull request #569 from ejoerns/pull-req/cooja-newip

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[Cooja] Reimplementation of the IPAddress interface
This commit is contained in:
Fredrik Österlind 2014-08-29 14:51:02 +02:00
parent 2a0ccf2c6b 01333c235c
commit 2263f4b87b
8 changed files with 519 additions and 178 deletions
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423
tools/cooja/java/org/contikios/cooja/interfaces/IPAddress.java
View file

@ -1,4 +1,5 @@
/*
* Copyright (c) 2014, TU Braunschweig.
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
@ -30,184 +31,275 @@
package org.contikios.cooja.interfaces;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Observable;
import java.util.Observer;
import javax.swing.JLabel;
import javax.swing.JPanel;
import org.apache.log4j.Logger;
import org.jdom.Element;
import org.contikios.cooja.ClassDescription;
import org.contikios.cooja.Mote;
import org.contikios.cooja.MoteInterface;
import org.contikios.cooja.mote.memory.MemoryInterface;
import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor;
import org.contikios.cooja.mote.memory.MemoryLayout;
import org.contikios.cooja.mote.memory.VarMemory;
import org.contikios.cooja.util.IPUtils;
import org.jdom.Element;
/**
* Read-only interface to IPv4 or IPv6 address.
*
* @author Fredrik Osterlind
* @author Enrico Joerns
*/
@ClassDescription("IP Address")
@ClassDescription("IP Addresses")
public class IPAddress extends MoteInterface {
private static Logger logger = Logger.getLogger(IPAddress.class);
private final VarMemory moteMem;
private static final Logger logger = Logger.getLogger(IPAddress.class);
private static final int IPv6_MAX_ADDRESSES = 4;
private boolean ipv6IsGlobal = false;
private int ipv6AddressIndex = -1;
private static final int MONITORED_SIZE = 150;
private SegmentMonitor memMonitor;
private enum IPv {
NONE,
IPv4,
IPv6
}
private final IPv ipVersion;
private final VarMemory moteMem;
private final MemoryLayout memLayout;
private IPContainer localIPAddr = null;
private final SegmentMonitor memMonitor;
private List<IPContainer> ipList = new LinkedList<>();
private int ipv6_addr_size = 0;
private int ipv6_addr_list_offset = 0;
public IPAddress(final Mote mote) {
moteMem = new VarMemory(mote.getMemory());
memLayout = mote.getMemory().getLayout();
/* If the ip memory sections changed, we recalculate addresses
* and notify our observers.*/
memMonitor = new MemoryInterface.SegmentMonitor() {
int accessCount = 0;
long lastAccess = 0;
@Override
public void memoryChanged(MemoryInterface memory, SegmentMonitor.EventType type, long address) {
if (type != SegmentMonitor.EventType.WRITE) {
return;
}
setChanged();
notifyObservers();
/* XXX Quick & Dirty IPv4 update handle */
if (ipVersion == IPv.IPv4) {
updateIPAddresses();
setChanged();
notifyObservers();
return;
}
/* Wait until size and offsest values are set initially,
* then add memory monitor for each ip field */
if ((ipv6_addr_list_offset == 0) || (ipv6_addr_size == 0)) {
ipv6_addr_list_offset = moteMem.getByteValueOf("uip_ds6_netif_addr_list_offset");
ipv6_addr_size = moteMem.getByteValueOf("uip_ds6_addr_size");
/* If the variables just updated, add the final ip listeners */
if ((ipv6_addr_list_offset != 0) && (ipv6_addr_size != 0)) {
/* Add monitor for each IP region */
for (int i = 0; i < IPv6_MAX_ADDRESSES; i++) {
long addr_of_ip = moteMem.getVariableAddress("uip_ds6_if") // start address of interface
+ ipv6_addr_list_offset // offset to ip address region
+ i * ipv6_addr_size // offset to ith ip address
+ 1 + memory.getLayout().getPaddingBytesFor(
MemoryLayout.DataType.INT8,
MemoryLayout.DataType.INT16); // skip 'isused'
moteMem.addMemoryMonitor(
EventType.WRITE,
addr_of_ip,
16, /* Size of ip address in byte */
memMonitor);
}
/* Initial scan for IP address */
updateIPAddresses();
if (ipList.size() > 0) {
setChanged();
notifyObservers();
}
/** @TODO: Remove other listeners? */
}
} else {
/** Note: works when 'isused' bit is set first
* and address region is written sequentially */
/* check for sequential reading of 16 byte block */
if (address == lastAccess + 1) {
accessCount++;
lastAccess = address;
if (accessCount == 16) {
updateIPAddresses();
setChanged();
notifyObservers();
lastAccess = 0;
}
}
else {
/* Check if ip write was interrupted unexpectedly last time */
if (lastAccess != 0) {
updateIPAddresses();
setChanged();
notifyObservers();
}
accessCount = 1;
lastAccess = address;
}
}
}
};
if (isVersion4()) {
moteMem.addVarMonitor(SegmentMonitor.EventType.WRITE, "uip_hostaddr", memMonitor);
} else if (isVersion6()) {
moteMem.addVarMonitor(SegmentMonitor.EventType.WRITE, "uip_ds6_netif_addr_list_offset", memMonitor);
moteMem.addVarMonitor(SegmentMonitor.EventType.WRITE, "uip_ds6_addr_size", memMonitor);
moteMem.addVarMonitor(SegmentMonitor.EventType.WRITE, "uip_ds6_if", memMonitor);
/* Determine IP version an add MemoryMonitors */
if (moteMem.variableExists("uip_hostaddr")) {
logger.debug("IPv4 detected");
ipVersion = IPv.IPv4;
moteMem.addVarMonitor(
SegmentMonitor.EventType.WRITE,
"uip_hostaddr",
memMonitor);
} else if (moteMem.variableExists("uip_ds6_netif_addr_list_offset")
&& moteMem.variableExists("uip_ds6_addr_size")
&& moteMem.variableExists("uip_ds6_if")) {
logger.debug("IPv6 detected");
ipVersion = IPv.IPv6;
moteMem.addVarMonitor(
SegmentMonitor.EventType.WRITE,
"uip_ds6_netif_addr_list_offset",
memMonitor);
moteMem.addVarMonitor(
SegmentMonitor.EventType.WRITE,
"uip_ds6_addr_size",
memMonitor);
} else {
ipVersion = IPv.NONE;
}
// initially look for IPs we already have
updateIPAddresses();
}
/**
* Returns true if any IP stack (Ipv4/6) is supported by mote
* @return true if either IPv4 or IPv6 was detected
*/
public boolean hasIP() {
return !(ipVersion == IPv.NONE);
}
/**
* Get local IP of mote.
* @return local IP or null if not existing
*/
public IPContainer getLocalIP() {
return localIPAddr;
}
/**
* Returns IP address string.
* Supports both IPv4 and IPv6 addresses.
*
* @param idx
* @return IP address string
*/
public String getIPString() {
if (isVersion4()) {
String ipString = "";
byte[] ip = moteMem.getByteArray("uip_hostaddr", 4);
for (int i=0; i < 3; i++) {
ipString += (0xFF & ip[i]) + ".";
public IPContainer getIP(int idx) {
try {
return ipList.get(idx);
} catch (IndexOutOfBoundsException ex) {
logger.warn("Invalid IP index " + idx);
return null;
}
}
/**
* Rereads IP addresses from memory and updates localIP entry.
*/
private void updateIPAddresses() {
ipList.clear();
if (ipVersion == IPv.IPv4) {
addIPv4Addresses();
localIPAddr = ipList.get(0);
}
else if (ipVersion == IPv.IPv6) {
addIPv6Addresses();
/* look for local ip addr */
for (IPContainer c : ipList) {
if (!c.isGlobal) {
localIPAddr = c;
}
}
ipString += (0xFF & ip[3]);
return ipString;
} else if (isVersion6()) {
String ipString = getUncompressedIPv6Address();
return compressIPv6Address(ipString);
}
return null;
}
public static String compressIPv6Address(String ipString) {
if (ipString.contains(":0000:0000:0000:0000:")) {
ipString = ipString.replace(":0000:0000:0000:0000:", "::");
} else if (ipString.contains(":0000:0000:0000:")) {
ipString = ipString.replace(":0000:0000:0000:", "::");
} else if (ipString.contains(":0000:0000:")) {
ipString = ipString.replace(":0000:0000:", "::");
} else if (ipString.contains(":0000:")) {
ipString = ipString.replace(":0000:", "::");
}
while (ipString.contains(":0")) {
ipString = ipString.replaceAll(":0", ":");
}
return ipString;
}
public byte[] getIPv6Address() {
byte[] ip = null;
/* IpV6: Struct sizes and offsets */
int ipv6NetworkInterfaceAddressOffset = moteMem.getByteValueOf("uip_ds6_netif_addr_list_offset");
int ipv6AddressStructSize = moteMem.getByteValueOf("uip_ds6_addr_size");
if (ipv6NetworkInterfaceAddressOffset == 0 || ipv6AddressStructSize == 0) {
return null;
}
/* TODO No need to copy the entire array! */
byte[] structData = moteMem.getByteArray("uip_ds6_if",
ipv6NetworkInterfaceAddressOffset+IPv6_MAX_ADDRESSES*ipv6AddressStructSize);
ipv6AddressIndex = -1;
for (int addressIndex=0; addressIndex < IPv6_MAX_ADDRESSES; addressIndex++) {
int offset = ipv6NetworkInterfaceAddressOffset+addressIndex*ipv6AddressStructSize;
byte isUsed = structData[offset];
if (isUsed == 0) {
continue;
}
byte[] addressData = new byte[16];
System.arraycopy(
structData, offset+2/* ipaddr offset */,
addressData, 0, 16);
if (addressData[0] == (byte)0xFE && addressData[1] == (byte)0x80) {
ipv6IsGlobal = false;
} else {
ipv6IsGlobal = true;
}
ip = addressData;
ipv6AddressIndex = addressIndex;
if (ipv6IsGlobal) {
break;
}
}
if (ip == null) {
ip = new byte[16];
ipv6AddressIndex = -1;
}
return ip;
}
public static String getUncompressedIPv6AddressString(byte[] ip) {
StringBuilder sb = new StringBuilder();
for (int i=0; i < 14; i+=2) {
sb.append(String.format("%02x%02x:", 0xFF&ip[i+0], 0xFF&ip[i+1]));
}
sb.append(String.format("%02x%02x", 0xFF&ip[14], 0xFF&ip[15]));
return sb.toString();
}
public String getUncompressedIPv6Address() {
byte[] ip = getIPv6Address();
if (ip == null) {
return "";
}
return getUncompressedIPv6AddressString(ip);
}
/**
* @return True if mote has an IPv4 address
* Rereads IPv4 addresses from memory.
*/
public boolean isVersion4() {
return moteMem.variableExists("uip_hostaddr");
private void addIPv4Addresses() {
ipList.add(new IPContainer(0, moteMem.getByteArray("uip_hostaddr", 4), true));
}
/**
* @return True if mote has an IPv6 address
* Rereads IPv6 addresses from memory.
*/
public boolean isVersion6() {
return
moteMem.variableExists("uip_ds6_netif_addr_list_offset") &&
moteMem.variableExists("uip_ds6_addr_size") &&
moteMem.variableExists("uip_ds6_if");
private void addIPv6Addresses() {
/* IpV6: Struct sizes and offsets */
int ipv6NetworkInterfaceAddressOffset = moteMem.getByteValueOf("uip_ds6_netif_addr_list_offset");
int ipv6AddressStructSize = moteMem.getByteValueOf("uip_ds6_addr_size");
/* check if addresses were not set yet */
if (ipv6NetworkInterfaceAddressOffset == 0 || ipv6AddressStructSize == 0) {
return;
}
byte[] structData = moteMem.getByteArray(
moteMem.getVariableAddress("uip_ds6_if") + ipv6NetworkInterfaceAddressOffset,
IPv6_MAX_ADDRESSES * ipv6AddressStructSize);
for (int addressIndex = 0; addressIndex < IPv6_MAX_ADDRESSES; addressIndex++) {
int offset = addressIndex * ipv6AddressStructSize;
byte isUsed = structData[offset];
if (isUsed == 0) {
continue;
}
byte[] addressData = new byte[16];
System.arraycopy(
structData, offset + 1 + memLayout.getPaddingBytesFor(
MemoryLayout.DataType.INT8,
MemoryLayout.DataType.INT16),/* ipaddr offset */
addressData, 0, 16);
if (((addressData[0] & (byte) 0xFF) == (byte) 0xFE) && ((addressData[1] & (byte) 0xFF) == (byte) 0x80)) {
ipList.add(new IPContainer(addressIndex, addressData, false));
}
else {
ipList.add(new IPContainer(addressIndex, addressData, true));
}
}
}
// -- MoteInterface overrides
@Override
public void removed() {
super.removed();
if (memMonitor != null) {
if (isVersion4()) {
moteMem.removeVarMonitor("rimeaddr_node_addr", memMonitor);
} else if (isVersion6()) {
if (ipVersion == IPv.IPv4) {
moteMem.removeVarMonitor("uip_hostaddr",memMonitor);
}
else if (ipVersion == IPv.IPv6) {
moteMem.removeVarMonitor("uip_ds6_netif_addr_list_offset", memMonitor);
moteMem.removeVarMonitor("uip_ds6_addr_size", memMonitor);
moteMem.removeVarMonitor("uip_ds6_if", memMonitor);
@ -215,21 +307,37 @@ public class IPAddress extends MoteInterface {
}
}
@Override
public JPanel getInterfaceVisualizer() {
JPanel panel = new JPanel();
final JLabel ipLabel = new JLabel();
Observer observer;
this.addObserver(observer = new Observer() {
@Override
public void update(Observable obs, Object obj) {
if (isVersion4()) {
ipLabel.setText("IPv4 address: " + getIPString());
} else if (isVersion6()) {
ipLabel.setText((ipv6IsGlobal?"Global":"Local") +
" IPv6 address(#" + ipv6AddressIndex + "): " + getIPString());
} else {
ipLabel.setText("Unknown IP");
StringBuilder ipStr = new StringBuilder();
ipStr.append("<html>");
for (IPContainer ipc: ipList) {
if (ipVersion == IPv.IPv4) {
ipStr.append("IPv4 address: ")
.append(ipc.toString())
.append("<br>");
}
else if (ipVersion == IPv.IPv6) {
ipStr.append(ipc.isGlobal() ? "Global" : "Local")
.append(" IPv6 address(#")
.append(ipc.getAddID())
.append("): ")
.append(ipc.toString())
.append("<br>");
}
else {
ipStr.append("Unknown IP<br>");
}
}
ipStr.append("</html>");
ipLabel.setText(ipStr.toString());
}
});
observer.update(null, null);
@ -240,6 +348,7 @@ public class IPAddress extends MoteInterface {
return panel;
}
@Override
public void releaseInterfaceVisualizer(JPanel panel) {
Observer observer = (Observer) panel.getClientProperty("intf_obs");
if (observer == null) {
@ -249,10 +358,68 @@ public class IPAddress extends MoteInterface {
this.deleteObserver(observer);
}
@Override
public Collection<Element> getConfigXML() {
return null;
}
@Override
public void setConfigXML(Collection<Element> configXML, boolean visAvailable) {
}
/**
* Holds a single IP address.
*
* Note: The compressed IP version is already computed in constructor
*/
public class IPContainer {
private boolean isGlobal = false;
private final byte[] ip;
private final int addrIdx;
private final String cprString;
public IPContainer(int addidx, byte[] ip, boolean global) {
this.addrIdx = addidx;
this.ip = ip;
this.isGlobal = global;
if (ipVersion == IPv.IPv4) {
cprString = IPUtils.getIPv4AddressString(ip);
} else if (ipVersion == IPv.IPv6) {
cprString = IPUtils.getCompressedIPv6AddressString(ip);
} else {
cprString = "";
}
/* logger.info("Added new IP: " + cprString); */
}
public int getAddID() {
return addrIdx;
}
public boolean isGlobal() {
return isGlobal;
}
public byte[] getIP() {
return ip;
}
@Override
public String toString() {
return cprString;
}
public String toUncompressedString() {
if (ipVersion == IPv.IPv4) {
return cprString;
}
else if (ipVersion == IPv.IPv6) {
return IPUtils.getUncompressedIPv6AddressString(ip);
}
else {
return "";
}
}
}
}

48
tools/cooja/java/org/contikios/cooja/mote/memory/Memory.java
View file

@ -29,6 +29,8 @@
*/
package org.contikios.cooja.mote.memory;
import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor;
import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor.EventType;
import org.contikios.cooja.mote.memory.MemoryLayout.DataType;
/**
@ -151,6 +153,18 @@ public abstract class Memory {
return MemoryBuffer.wrap(memIntf.getLayout(), memIntf.getMemorySegment(addr, memIntf.getLayout().addrSize)).getAddr();
}
/**
* Read byte array starting at given address.
*
* @param addr Start address to read from
* @param length Numbe of bytes to read
* @return byte array read from location assigned to variable name
*/
public byte[] getByteArray(long addr, int length)
throws UnknownVariableException {
return memIntf.getMemorySegment(addr, length);
}
// -- Set fixed size types
/**
* Write 8 bit integer to address.
@ -253,4 +267,38 @@ public abstract class Memory {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(memIntf.getLayout(), new byte[memIntf.getLayout().addrSize]).putAddr(value).getBytes());
}
/**
* Write byte array starting at given address.
*
* @param addr Start address to write to
* @param data data to write
*/
public void setByteArray(long addr, byte[] data)
throws UnknownVariableException {
memIntf.setMemorySegment(addr, data);
}
/**
* Adds monitor to specified memory region.
*
* @param flag Select memory operation(s) to listen for (read, write, read/write)
* @param addr Start address of monitored region
* @param size Size of monitored region
* @param mm Monitor to add
* @return if monitor could be added, false if not
*/
public boolean addMemoryMonitor(EventType flag, long addr, int size, SegmentMonitor mm) {
return memIntf.addSegmentMonitor(flag, addr, size, mm);
}
/**
* Removes monitor assigned to the specified region.
*
* @param addr Start address of monitored region
* @param size Size of monitored region
* @param mm Monitor to remove
*/
public void removeMemoryMonitor(long addr, int size, SegmentMonitor mm) {
memIntf.removeSegmentMonitor(addr, size, mm);
}
}

26
tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java
View file

@ -243,7 +243,7 @@ public class VarMemory extends Memory {
*/
public byte[] getByteArray(String varName, int length)
throws UnknownVariableException {
return memIntf.getMemorySegment(getVariable(varName).addr, length);
return getByteArray(getVariable(varName).addr, length);
}
/**
@ -349,23 +349,23 @@ public class VarMemory extends Memory {
}
/**
* Write byte array starting at location associated with this variable name.
*
* @param varName
* @param data
* @param varName Variable name
* @param data data to write
*/
public void setByteArray(String varName, byte[] data)
throws UnknownVariableException {
memIntf.setMemorySegment(getVariable(varName).addr, data);
setByteArray(getVariable(varName).addr, data);
}
/**
* Adds a MemoryMonitor for the specified address region.
* Adds a monitor for the specified address region.
*
* @param flag Select memory operation(s) to listen for (read, write,
* read/write)
* @param varName
* @param mm
* @return
* @param flag Select memory operation(s) to listen for (read, write, read/write)
* @param varName Name of variable to monitor
* @param mm Monitor to add
* @return if monitor could be added, false if not
*/
public boolean addVarMonitor(EventType flag, final String varName, final SegmentMonitor mm) {
return memIntf.addSegmentMonitor(
@ -376,10 +376,10 @@ public class VarMemory extends Memory {
}
/**
* Removes MemoryMonitor assigned to the specified region.
* Removes monitor assigned to the specified region.
*
* @param varName
* @param mm MemoryMonitor to remove
* @param varName Name of monitored variable
* @param mm Monitor to remove
*/
public void removeVarMonitor(String varName, SegmentMonitor mm) {
memIntf.removeSegmentMonitor(getVariable(varName).addr, getVariable(varName).size, mm);

13
tools/cooja/java/org/contikios/cooja/plugins/BufferListener.java
View file

@ -104,6 +104,7 @@ import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor;
import org.contikios.cooja.mote.memory.VarMemory;
import org.contikios.cooja.motes.AbstractEmulatedMote;
import org.contikios.cooja.util.ArrayQueue;
import org.contikios.cooja.util.IPUtils;
import org.contikios.cooja.util.StringUtils;
/**
@ -1696,7 +1697,7 @@ public class BufferListener extends VisPlugin {
} else {
mem = ba.mem;
}
return IPAddress.compressIPv6Address(StringUtils.toHex(mem, 2).replaceAll(" ", ":"));
return IPUtils.getCompressedIPv6AddressString(mem);
}
}
@ -1708,15 +1709,7 @@ public class BufferListener extends VisPlugin {
if (ba.mem.length < 4) {
return "[must monitor at least 4 bytes]";
}
StringBuilder sb = new StringBuilder();
sb.append(0xff&ba.mem[0]);
sb.append(".");
sb.append(0xff&ba.mem[1]);
sb.append(".");
sb.append(0xff&ba.mem[2]);
sb.append(".");
sb.append(0xff&ba.mem[3]);
return sb.toString();
return IPUtils.getIPv4AddressString(ba.mem);
}
}

15
tools/cooja/java/org/contikios/cooja/plugins/analyzers/IPHCPacketAnalyzer.java
View file

@ -1,6 +1,6 @@
package org.contikios.cooja.plugins.analyzers;
import org.contikios.cooja.util.StringUtils;
import org.contikios.cooja.util.IPUtils;
public class IPHCPacketAnalyzer extends PacketAnalyzer {
@ -466,9 +466,9 @@ public class IPHCPacketAnalyzer extends PacketAnalyzer {
.append(", FL = ").append(flowLabel)
.append("<br>");
verbose.append("From ");
printAddress(verbose, srcAddress);
IPUtils.getUncompressedIPv6AddressString(verbose, srcAddress);
verbose.append(" to ");
printAddress(verbose, destAddress);
IPUtils.getUncompressedIPv6AddressString(verbose, destAddress);
if (error != null) {
verbose.append(" ").append(error);
}
@ -496,13 +496,4 @@ public class IPHCPacketAnalyzer extends PacketAnalyzer {
}
}
public static void printAddress(StringBuilder out, byte[] address) {
for (int i = 0; i < 16; i += 2) {
out.append(StringUtils.toHex((byte) (address[i] & 0xff))
+ StringUtils.toHex((byte) (address[i + 1] & 0xff)));
if (i < 14) {
out.append(":");
}
}
}
}

16
tools/cooja/java/org/contikios/cooja/plugins/analyzers/IPv6PacketAnalyzer.java
View file

@ -1,6 +1,6 @@
package org.contikios.cooja.plugins.analyzers;
import org.contikios.cooja.util.StringUtils;
import org.contikios.cooja.util.IPUtils;
public class IPv6PacketAnalyzer extends PacketAnalyzer {
@ -60,23 +60,13 @@ public class IPv6PacketAnalyzer extends PacketAnalyzer {
.append("</b> TC = ").append(trafficClass)
.append(" FL: ").append(flowLabel).append("<br>");
verbose.append("From ");
printAddress(verbose, srcAddress);
IPUtils.getUncompressedIPv6AddressString(verbose, srcAddress);
verbose.append(" to ");
printAddress(verbose, destAddress);
IPUtils.getUncompressedIPv6AddressString(verbose, destAddress);
packet.lastDispatch = (byte) (proto & 0xff);
packet.level = APPLICATION_LEVEL;
return ANALYSIS_OK_CONTINUE;
}
public static void printAddress(StringBuilder out, byte[] address) {
for (int i = 0; i < 16; i += 2) {
out.append(StringUtils.toHex((byte) (address[i] & 0xff))
+ StringUtils.toHex((byte) (address[i + 1] & 0xff)));
if (i < 14) {
out.append(":");
}
}
}
}

7
tools/cooja/java/org/contikios/cooja/plugins/skins/AddressVisualizerSkin.java
View file

@ -128,8 +128,11 @@ public class AddressVisualizerSkin implements VisualizerSkin {
private static String getMoteString(Mote mote) {
IPAddress ipAddr = mote.getInterfaces().getIPAddress();
if (ipAddr != null && ipAddr.getIPString() != null) {
return ipAddr.getIPString();
if ((ipAddr != null) && (ipAddr.hasIP())) {
if (ipAddr.getLocalIP() == null) {
return "";
}
return ipAddr.getLocalIP().toString();
}
RimeAddress rimeAddr = mote.getInterfaces().getRimeAddress();

149
tools/cooja/java/org/contikios/cooja/util/IPUtils.java Normal file
View file

@ -0,0 +1,149 @@
/*
* Copyright (c) 2014, TU Braunschweig
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
package org.contikios.cooja.util;
/**
* Holds some IP byte to string conversion functions etc.
*
* @author Enrico Jorns
*/
public class IPUtils {
/**
* Convert IPv6 Byte-array in compressed IPv6-Address String.
*
* @param ip byte array holding IPv6 address information
* @return String representation
*/
public static String getCompressedIPv6AddressString(byte[] ip) {
StringBuilder build = new StringBuilder();
IPUtils.getCompressedIPv6AddressString(build, ip);
return build.toString();
}
/**
* Convert IPv6 Byte-array in compressed IPv6-Address String.
*
* @param builder Buffer to append to
* @param ip byte array holding IPv6 address information
*/
public static void getCompressedIPv6AddressString(StringBuilder builder, byte[] ip) {
int startMax = 0, startCurr = 0, zeroMax = 0, zeroCurr = 0;
if (ip.length != 16) {
throw new IllegalArgumentException("Invalid array length: " + ip.length);
}
for (int i = 0; i < 16; i += 2) {
if ((ip[i] | ip[i + 1]) == 0x00) {
if (zeroCurr == 0) {
startCurr = i;
}
zeroCurr++;
}
else {
if (zeroCurr > zeroMax) {
zeroMax = zeroCurr;
startMax = startCurr;
zeroCurr = 0;
}
}
}
if (zeroCurr > zeroMax) {
zeroMax = zeroCurr;
startMax = startCurr;
}
short a;
for (int i = 0, f = 0; i < 16; i += 2) {
a = (short) (((ip[i] & 0xFF) << 8) + (ip[i + 1] & 0xFF));
if ((i >= startMax) && (i < startMax + zeroMax * 2)) {
if (f++ == 0) {
builder.append("::");
}
}
else {
if (f > 0) {
f = -1;
}
else if (i > 0) {
builder.append(':');
}
builder.append(String.format("%x", a));
}
}
}
/**
* Convert IPv6 Byte-array in uncompressed IPv6-Address String.
*
* @param ip byte array holding IPv6 address information
* @return uncompressed IPv6 representation string
*/
public static String getUncompressedIPv6AddressString(byte[] ip) {
StringBuilder ipBuilder = new StringBuilder();
IPUtils.getUncompressedIPv6AddressString(ipBuilder, ip);
return ipBuilder.toString();
}
/**
* Convert IPv6 Byte-array in uncompressed IPv6-Address String.
*
* @param builder StringBuilder to append address to
* @param ip byte array holding IPv6 address information
*/
public static void getUncompressedIPv6AddressString(StringBuilder builder, byte[] ip) {
for (int i = 0; i < 14; i += 2) {
builder.append(String.format("%02x%02x:", 0xFF & ip[i + 0], 0xFF & ip[i + 1]));
}
builder.append(String.format("%02x%02x", 0xFF & ip[14], 0xFF & ip[15]));
}
/**
* Convert IPv4 Byte-array to IPv4-Address String.
*
* @param ip byte array holding IPv4 address information
* @return IPv4 representation string
*/
public static String getIPv4AddressString(byte[] ip) {
if (ip.length != 4) {
throw new IllegalArgumentException("Invalid array length: " + ip.length);
}
StringBuilder ipBuilder = new StringBuilder();
for (int i = 0; i < 3; i++) {
ipBuilder.append(0xFF & ip[i]);
ipBuilder.append('.');
}
ipBuilder.append(0xFF & ip[3]);
return ipBuilder.toString();
}
}