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Diffstat (limited to 'plugins/org.eclipse.tm.tcf.core')
-rw-r--r--plugins/org.eclipse.tm.tcf.core/src/org/eclipse/tm/internal/tcf/services/local/LocatorService.java237
1 files changed, 153 insertions, 84 deletions
diff --git a/plugins/org.eclipse.tm.tcf.core/src/org/eclipse/tm/internal/tcf/services/local/LocatorService.java b/plugins/org.eclipse.tm.tcf.core/src/org/eclipse/tm/internal/tcf/services/local/LocatorService.java
index b6bd9b52c..7f2459b6a 100644
--- a/plugins/org.eclipse.tm.tcf.core/src/org/eclipse/tm/internal/tcf/services/local/LocatorService.java
+++ b/plugins/org.eclipse.tm.tcf.core/src/org/eclipse/tm/internal/tcf/services/local/LocatorService.java
@@ -10,6 +10,9 @@
*******************************************************************************/
package org.eclipse.tm.internal.tcf.services.local;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Method;
import java.net.DatagramPacket;
@@ -71,8 +74,7 @@ public class LocatorService implements ILocator {
private InetAddress loopback_addr;
/**
- * Flag indicating whether tracing of the the discovery activity is enabled
- * or not.
+ * Flag indicating whether tracing of the the discovery activity is enabled.
*/
static boolean TRACE_DISCOVERY = System.getProperty("org.eclipse.tm.tcf.core.tracing.discovery") != null;
@@ -525,91 +527,23 @@ public class LocatorService implements ILocator {
private void refreshSubNetList() {
HashSet<SubNet> set = new HashSet<SubNet>();
try {
- for (Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements();) {
- NetworkInterface f = e.nextElement();
- /* TODO: Class InterfaceAddress does not exists in Java versions before 1.6.
- * Fix the code below when support for old Java versions is not needed any more.
+ String osname = System.getProperty("os.name", "");
+ if (osname.startsWith("Windows")) {
+ /*
+ * Workaround for JVM bug:
+ * InterfaceAddress.getNetworkPrefixLength() does not conform to Javadoc
+ * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6707289
+ *
+ * The bug shows up only on Windows when IPv6 is enabled.
+ * The bug is supposed to be fixed in Java 1.7.
*/
- try {
- Method m0 = f.getClass().getMethod("getInterfaceAddresses");
- for (Object ia : (List<?>)m0.invoke(f)) {
- Method m1 = ia.getClass().getMethod("getNetworkPrefixLength");
- Method m2 = ia.getClass().getMethod("getAddress");
- Method m3 = ia.getClass().getMethod("getBroadcast");
- int network_prefix_len = (Short)m1.invoke(ia);
- InetAddress address = (InetAddress)m2.invoke(ia);
- InetAddress broadcast = (InetAddress)m3.invoke(ia);
- if (network_prefix_len <= 0) {
- // Windows XP reports network prefix length 0
- // for loopback interface when IP V6 is enabled.
- // Is it bug or feature?
- byte[] buf = address.getAddress();
- if (buf.length == 4 && buf[0] == 127) {
- network_prefix_len = 8;
- buf[1] = buf[2] = buf[3] = (byte)255;
- broadcast = InetAddress.getByAddress(buf);
- }
- }
-
- if (address instanceof Inet4Address && network_prefix_len > 32) {
- /*
- * Workaround for JVM bug:
- * InterfaceAddress.getNetworkPrefixLength() does not conform to Javadoc
- * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6707289
- *
- * The bug shows up only when IPv6 is enabled.
- * The bug is supposed to be fixed in Java 1.7.
- */
- // TODO: need a better way to get network prefix length on Java 1.6 VM
- network_prefix_len = 24;
- }
-
- // TODO: discovery over IPv6
-
- /* Create IPv6 broadcast address.
- * The code does not work - commented out until fixed.
- if (broadcast == null &&
- address instanceof Inet6Address &&
- !address.isAnyLocalAddress() &&
- !address.isLinkLocalAddress() &&
- !address.isMulticastAddress() &&
- !address.isLoopbackAddress()) {
- byte[] net = address.getAddress();
- byte[] buf = new byte[16];
- buf[0] = (byte)0xff; // multicast
- buf[1] = (byte)0x32; // flags + scope
- buf[2] = (byte)0x00; // reserved
- buf[3] = (byte)network_prefix_len;
- int n = (network_prefix_len + 7) / 8;
- for (int i = 0; i < n; i++) buf[i + 4] = net[i];
- broadcast = Inet6Address.getByAddress(null, buf);
- }
- */
-
- if (network_prefix_len > 0 && address != null && broadcast != null) {
- set.add(new SubNet(network_prefix_len, address, broadcast));
- }
- }
- }
- catch (Exception x) {
- // Java 1.5 or older
- // TODO: need a better way to get broadcast addresses on Java 1.5 VM
- Enumeration<InetAddress> n = f.getInetAddresses();
- while (n.hasMoreElements()) {
- InetAddress addr = n.nextElement();
- byte[] buf = addr.getAddress();
- if (buf.length != 4) continue;
- buf[3] = (byte)255;
- try {
- set.add(new SubNet(24, addr, InetAddress.getByAddress(buf)));
- }
- catch (UnknownHostException y) {
- }
- }
- }
+ getWindowsSubNetList(set);
+ }
+ else {
+ getSubNetList(set);
}
}
- catch (SocketException x) {
+ catch (Exception x) {
log("Cannot get list of network interfaces", x);
}
for (Iterator<SubNet> i = subnets.iterator(); i.hasNext();) {
@@ -631,6 +565,141 @@ public class LocatorService implements ILocator {
}
}
+ private void getSubNetList(HashSet<SubNet> set) throws SocketException {
+ for (Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements();) {
+ NetworkInterface f = e.nextElement();
+ /* TODO: Class InterfaceAddress does not exists in Java versions before 1.6.
+ * Fix the code below when support for old Java versions is not needed any more.
+ */
+ try {
+ Method m0 = f.getClass().getMethod("getInterfaceAddresses");
+ for (Object ia : (List<?>)m0.invoke(f)) {
+ Method m1 = ia.getClass().getMethod("getNetworkPrefixLength");
+ Method m2 = ia.getClass().getMethod("getAddress");
+ Method m3 = ia.getClass().getMethod("getBroadcast");
+ int network_prefix_len = (Short)m1.invoke(ia);
+ InetAddress address = (InetAddress)m2.invoke(ia);
+ InetAddress broadcast = (InetAddress)m3.invoke(ia);
+
+ // TODO: discovery over IPv6
+ /* Create IPv6 broadcast address.
+ * The code does not work - commented out until fixed.
+ if (broadcast == null &&
+ address instanceof Inet6Address &&
+ !address.isAnyLocalAddress() &&
+ !address.isLinkLocalAddress() &&
+ !address.isMulticastAddress() &&
+ !address.isLoopbackAddress()) {
+ byte[] net = address.getAddress();
+ byte[] buf = new byte[16];
+ buf[0] = (byte)0xff; // multicast
+ buf[1] = (byte)0x32; // flags + scope
+ buf[2] = (byte)0x00; // reserved
+ buf[3] = (byte)network_prefix_len;
+ int n = (network_prefix_len + 7) / 8;
+ for (int i = 0; i < n; i++) buf[i + 4] = net[i];
+ broadcast = Inet6Address.getByAddress(null, buf);
+ }
+ */
+
+ if (network_prefix_len > 0 && address != null && broadcast != null) {
+ set.add(new SubNet(network_prefix_len, address, broadcast));
+ }
+ }
+ }
+ catch (Exception x) {
+ // Java 1.5 or older
+ // TODO: need a better way to get broadcast addresses on Java 1.5 VM
+ Enumeration<InetAddress> n = f.getInetAddresses();
+ while (n.hasMoreElements()) {
+ InetAddress addr = n.nextElement();
+ byte[] buf = addr.getAddress();
+ if (buf.length != 4) continue;
+ buf[3] = (byte)255;
+ try {
+ set.add(new SubNet(24, addr, InetAddress.getByAddress(buf)));
+ }
+ catch (UnknownHostException y) {
+ }
+ }
+ }
+ }
+ }
+
+ private void getWindowsSubNetList(HashSet<SubNet> set) throws Exception {
+ HashMap<String,InetAddress> map = new HashMap<String,InetAddress>();
+ for (Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements();) {
+ NetworkInterface f = e.nextElement();
+ Enumeration<InetAddress> n = f.getInetAddresses();
+ while (n.hasMoreElements()) {
+ InetAddress addr = n.nextElement();
+ if (addr instanceof Inet4Address) {
+ String s = addr.getHostAddress();
+ if (s.startsWith("127.")) {
+ byte[] buf = addr.getAddress();
+ buf[1] = buf[2] = buf[3] = (byte)255;
+ set.add(new SubNet(8, addr, InetAddress.getByAddress(buf)));
+ }
+ else {
+ map.put(s, addr);
+ }
+ }
+ }
+ }
+ Process prs = Runtime.getRuntime().exec(new String[]{ "ipconfig", "/all" }, null);
+ BufferedReader inp = new BufferedReader(new InputStreamReader(prs.getInputStream()));
+ for (;;) {
+ String s = inp.readLine();
+ if (s == null) break;
+ int n = s.indexOf(" : ");
+ if (n < 0) continue;
+ InetAddress addr = map.get(s.substring(n + 3));
+ if (addr == null) continue;
+ do s = inp.readLine();
+ while (s != null && s.length() == 0);
+ if (s == null) break;
+ n = s.indexOf(" : ");
+ if (n < 0) continue;
+ s = s.substring(n + 3);
+ int l = s.length();
+ int i_cnt = 0;
+ int d_cnt = 0;
+ for (int i = 0; i < l; i++) {
+ char ch = s.charAt(i);
+ if (ch == '.') d_cnt++;
+ else if (ch < '0' || ch > '9') i_cnt++;
+ }
+ if (d_cnt != 3 || i_cnt != 0) continue;
+ try {
+ byte[] buf = InetAddress.getByName(s).getAddress();
+ int prefix_length = 0;
+ for (int i = 0; i < 32; i++) {
+ if ((buf[i / 8] & (1 << (7 - i % 8))) == 0) {
+ prefix_length = i;
+ break;
+ }
+ }
+ if (prefix_length > 0) {
+ buf = addr.getAddress();
+ for (int i = prefix_length; i < 32; i++) {
+ buf[i / 8] |= 1 << (7 - i % 8);
+ }
+ set.add(new SubNet(prefix_length, addr, InetAddress.getByAddress(buf)));
+ }
+ }
+ catch (Exception x) {
+ }
+ }
+ try {
+ prs.getErrorStream().close();
+ prs.getOutputStream().close();
+ inp.close();
+ }
+ catch (IOException x) {
+ }
+ prs.waitFor();
+ }
+
private byte[] getUTF8Bytes(String s) {
try {
return s.getBytes("UTF-8");

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