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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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*
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package sun.security.jgss;
import org.ietf.jgss.*;
import sun.security.jgss.spi.*;
import java.io.*;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.AccessController;
import java.security.PrivilegedAction;
/**
* This class provides the default implementation of the GSSManager
* interface.
*/
public class GSSManagerImpl extends GSSManager {
// Undocumented property
private static final String USE_NATIVE_PROP =
"sun.security.jgss.native";
private static final Boolean USE_NATIVE;
static {
USE_NATIVE =
AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
String osname = System.getProperty("os.name");
if (osname.startsWith("SunOS") ||
osname.startsWith("Linux")) {
return new Boolean(System.getProperty
(USE_NATIVE_PROP));
}
return Boolean.FALSE;
}
});
}
private ProviderList list;
// Used by java SPNEGO impl to make sure native is disabled
public GSSManagerImpl(int caller, boolean useNative) {
list = new ProviderList(caller, useNative);
}
// Used by HTTP/SPNEGO NegotiatorImpl
public GSSManagerImpl(int caller) {
list = new ProviderList(caller, USE_NATIVE);
}
public GSSManagerImpl() {
list = new ProviderList(GSSUtil.CALLER_UNKNOWN, USE_NATIVE);
}
public Oid[] getMechs(){
return list.getMechs();
}
public Oid[] getNamesForMech(Oid mech)
throws GSSException {
MechanismFactory factory = list.getMechFactory(mech);
return (Oid[])factory.getNameTypes().clone();
}
public Oid[] getMechsForName(Oid nameType){
Oid[] mechs = list.getMechs();
Oid[] retVal = new Oid[mechs.length];
int pos = 0;
// Iterate thru all mechs in GSS
for (int i = 0; i < mechs.length; i++) {
// what nametypes does this mech support?
Oid mech = mechs[i];
try {
Oid[] namesForMech = getNamesForMech(mech);
// Is the desired Oid present in that list?
if (nameType.containedIn(namesForMech)) {
retVal[pos++] = mech;
}
} catch (GSSException e) {
// Squelch it and just skip over this mechanism
GSSUtil.debug("Skip " + mech +
": error retrieving supported name types");
}
}
// Trim the list if needed
if (pos < retVal.length) {
Oid[] temp = new Oid[pos];
for (int i = 0; i < pos; i++)
temp[i] = retVal[i];
retVal = temp;
}
return retVal;
}
public GSSName createName(String nameStr, Oid nameType)
throws GSSException {
return new GSSNameImpl(this, nameStr, nameType);
}
public GSSName createName(byte name[], Oid nameType)
throws GSSException {
return new GSSNameImpl(this, name, nameType);
}
public GSSName createName(String nameStr, Oid nameType,
Oid mech) throws GSSException {
return new GSSNameImpl(this, nameStr, nameType, mech);
}
public GSSName createName(byte name[], Oid nameType, Oid mech)
throws GSSException {
return new GSSNameImpl(this, name, nameType, mech);
}
public GSSCredential createCredential(int usage)
throws GSSException {
return new GSSCredentialImpl(this, usage);
}
public GSSCredential createCredential(GSSName aName,
int lifetime, Oid mech, int usage)
throws GSSException {
return new GSSCredentialImpl(this, aName, lifetime, mech, usage);
}
public GSSCredential createCredential(GSSName aName,
int lifetime, Oid mechs[], int usage)
throws GSSException {
return new GSSCredentialImpl(this, aName, lifetime, mechs, usage);
}
public GSSContext createContext(GSSName peer, Oid mech,
GSSCredential myCred, int lifetime)
throws GSSException {
return new GSSContextImpl(this, peer, mech, myCred, lifetime);
}
public GSSContext createContext(GSSCredential myCred)
throws GSSException {
return new GSSContextImpl(this, myCred);
}
public GSSContext createContext(byte[] interProcessToken)
throws GSSException {
return new GSSContextImpl(this, interProcessToken);
}
public void addProviderAtFront(Provider p, Oid mech)
throws GSSException {
list.addProviderAtFront(p, mech);
}
public void addProviderAtEnd(Provider p, Oid mech)
throws GSSException {
list.addProviderAtEnd(p, mech);
}
public GSSCredentialSpi getCredentialElement(GSSNameSpi name, int initLifetime,
int acceptLifetime, Oid mech, int usage)
throws GSSException {
MechanismFactory factory = list.getMechFactory(mech);
return factory.getCredentialElement(name, initLifetime,
acceptLifetime, usage);
}
// Used by java SPNEGO impl
public GSSNameSpi getNameElement(String name, Oid nameType, Oid mech)
throws GSSException {
// Just use the most preferred MF impl assuming GSSNameSpi
// objects are interoperable among providers
MechanismFactory factory = list.getMechFactory(mech);
return factory.getNameElement(name, nameType);
}
// Used by java SPNEGO impl
public GSSNameSpi getNameElement(byte[] name, Oid nameType, Oid mech)
throws GSSException {
// Just use the most preferred MF impl assuming GSSNameSpi
// objects are interoperable among providers
MechanismFactory factory = list.getMechFactory(mech);
return factory.getNameElement(name, nameType);
}
GSSContextSpi getMechanismContext(GSSNameSpi peer,
GSSCredentialSpi myInitiatorCred,
int lifetime, Oid mech)
throws GSSException {
Provider p = null;
if (myInitiatorCred != null) {
p = myInitiatorCred.getProvider();
}
MechanismFactory factory = list.getMechFactory(mech, p);
return factory.getMechanismContext(peer, myInitiatorCred, lifetime);
}
GSSContextSpi getMechanismContext(GSSCredentialSpi myAcceptorCred,
Oid mech)
throws GSSException {
Provider p = null;
if (myAcceptorCred != null) {
p = myAcceptorCred.getProvider();
}
MechanismFactory factory = list.getMechFactory(mech, p);
return factory.getMechanismContext(myAcceptorCred);
}
GSSContextSpi getMechanismContext(byte[] exportedContext)
throws GSSException {
if ((exportedContext == null) || (exportedContext.length == 0)) {
throw new GSSException(GSSException.NO_CONTEXT);
}
GSSContextSpi result = null;
// Only allow context import with native provider since JGSS
// still has not defined its own interprocess token format
Oid[] mechs = list.getMechs();
for (int i = 0; i < mechs.length; i++) {
MechanismFactory factory = list.getMechFactory(mechs[i]);
if (factory.getProvider().getName().equals("SunNativeGSS")) {
result = factory.getMechanismContext(exportedContext);
if (result != null) break;
}
}
if (result == null) {
throw new GSSException(GSSException.UNAVAILABLE);
}
return result;
}
}