Allow sshd.listenAddress = off to disable the daemon

We might not want to run the internal SSHD, ever, on this system.
In such cases permit off for listenAddress so that we don't
initialize a server key, or even try to load it at startup.

Change-Id: Ia57c3aa24413d64e10e0440f758b3b18f881ddd9
Signed-off-by: Shawn O. Pearce <sop@google.com>
This commit is contained in:
Shawn O. Pearce
2010-06-08 17:38:43 -07:00
parent 5d6de5281c
commit 6af6f5f784
3 changed files with 31 additions and 2 deletions

View File

@@ -216,7 +216,7 @@ public class SshDaemon extends SshServer implements SshInfo, LifecycleListener {
@Override
public synchronized void start() {
if (acceptor == null) {
if (acceptor == null && !listen.isEmpty()) {
checkConfig();
acceptor = createAcceptor();
@@ -257,6 +257,10 @@ public class SshDaemon extends SshServer implements SshInfo, LifecycleListener {
}
private List<HostKey> computeHostKeys() {
if (listen.isEmpty()) {
return Collections.emptyList();
}
final List<PublicKey> keys = myHostKeys();
final ArrayList<HostKey> r = new ArrayList<HostKey>();
for (final PublicKey pub : keys) {
@@ -348,6 +352,10 @@ public class SshDaemon extends SshServer implements SshInfo, LifecycleListener {
return bind;
}
if (want.length == 1 && isOff(want[0])) {
return bind;
}
for (final String desc : want) {
try {
bind.add(SocketUtil.resolve(desc, DEFAULT_PORT));
@@ -358,6 +366,12 @@ public class SshDaemon extends SshServer implements SshInfo, LifecycleListener {
return bind;
}
private static boolean isOff(String listenHostname) {
return "off".equalsIgnoreCase(listenHostname)
|| "none".equalsIgnoreCase(listenHostname)
|| "no".equalsIgnoreCase(listenHostname);
}
@SuppressWarnings("unchecked")
private void initProviderBouncyCastle() {
setKeyExchangeFactories(Arrays.<NamedFactory<KeyExchange>> asList(