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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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package sun.security.jgss.wrapper;

import java.util.Hashtable;
import org.ietf.jgss.Oid;
import org.ietf.jgss.GSSName;
import org.ietf.jgss.ChannelBinding;
import org.ietf.jgss.MessageProp;
import org.ietf.jgss.GSSException;
import sun.security.jgss.GSSUtil;

This class is essentially a JNI calling stub for all wrapper classes.
Author:Valerie Peng
Since:1.6
/** * This class is essentially a JNI calling stub for all wrapper classes. * * @author Valerie Peng * @since 1.6 */
class GSSLibStub { private Oid mech; private long pMech;
Initialization routine to dynamically load function pointers.
Params:
  • lib – library name to dlopen
  • debug – set to true for reporting native debugging info
Returns:true if succeeded, false otherwise.
/** * Initialization routine to dynamically load function pointers. * * @param lib library name to dlopen * @param debug set to true for reporting native debugging info * @return true if succeeded, false otherwise. */
static native boolean init(String lib, boolean debug); private static native long getMechPtr(byte[] oidDerEncoding); // Miscellaneous routines static native Oid[] indicateMechs(); native Oid[] inquireNamesForMech() throws GSSException; // Name related routines native void releaseName(long pName); native long importName(byte[] name, Oid type); native boolean compareName(long pName1, long pName2); native long canonicalizeName(long pName); native byte[] exportName(long pName) throws GSSException; native Object[] displayName(long pName) throws GSSException; // Credential related routines native long acquireCred(long pName, int lifetime, int usage) throws GSSException; native long releaseCred(long pCred); native long getCredName(long pCred); native int getCredTime(long pCred); native int getCredUsage(long pCred); // Context related routines native NativeGSSContext importContext(byte[] interProcToken); native byte[] initContext(long pCred, long targetName, ChannelBinding cb, byte[] inToken, NativeGSSContext context); native byte[] acceptContext(long pCred, ChannelBinding cb, byte[] inToken, NativeGSSContext context); native long[] inquireContext(long pContext); native Oid getContextMech(long pContext); native long getContextName(long pContext, boolean isSrc); native int getContextTime(long pContext); native long deleteContext(long pContext); native int wrapSizeLimit(long pContext, int flags, int qop, int outSize); native byte[] exportContext(long pContext); native byte[] getMic(long pContext, int qop, byte[] msg); native void verifyMic(long pContext, byte[] token, byte[] msg, MessageProp prop) ; native byte[] wrap(long pContext, byte[] msg, MessageProp prop); native byte[] unwrap(long pContext, byte[] msgToken, MessageProp prop); private static Hashtable<Oid, GSSLibStub> table = new Hashtable<Oid, GSSLibStub>(5); static GSSLibStub getInstance(Oid mech) throws GSSException { GSSLibStub s = table.get(mech); if (s == null) { s = new GSSLibStub(mech); table.put(mech, s); } return s; } private GSSLibStub(Oid mech) throws GSSException { SunNativeProvider.debug("Created GSSLibStub for mech " + mech); this.mech = mech; this.pMech = getMechPtr(mech.getDER()); } public boolean equals(Object obj) { if (obj == this) return true; if (!(obj instanceof GSSLibStub)) { return false; } return (mech.equals(((GSSLibStub) obj).getMech())); } public int hashCode() { return mech.hashCode(); } Oid getMech() { return mech; } }