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8212217: JGSS: Don't dispose() of creds too eagerly

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Reviewed-by: mullan, weijun
This commit is contained in:
Nico Williams 2018-11-01 22:41:32 +08:00 • committed by Weijun Wang
parent 2fe0a0f20b
commit 58a340bcb1
1 changed files with 26 additions and 10 deletions
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32
src/java.security.jgss/share/classes/sun/security/jgss/wrapper/NativeGSSContext.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -63,12 +63,14 @@ class NativeGSSContext implements GSSContextSpi {
private GSSNameElement srcName;
private GSSNameElement targetName;
private GSSCredElement cred;
private GSSCredElement disposeCred;
private boolean isInitiator;
private boolean isEstablished;
private Oid actualMech; // Assigned during context establishment
private ChannelBinding cb;
private GSSCredElement delegatedCred;
private GSSCredElement disposeDelegatedCred;
private int flags;
private int lifetime = GSSCredential.DEFAULT_LIFETIME;
private final GSSLibStub cStub;
@ -192,6 +194,7 @@ class NativeGSSContext implements GSSContextSpi {
}
cStub = stub;
cred = myCred;
disposeCred = null;
targetName = peer;
isInitiator = true;
lifetime = time;
@ -199,7 +202,8 @@ class NativeGSSContext implements GSSContextSpi {
if (GSSUtil.isKerberosMech(cStub.getMech())) {
doServicePermCheck();
if (cred == null) {
cred = new GSSCredElement(null, lifetime,
disposeCred = cred =
new GSSCredElement(null, lifetime,
GSSCredential.INITIATE_ONLY, cStub);
}
srcName = cred.getName();
@ -211,6 +215,7 @@ class NativeGSSContext implements GSSContextSpi {
throws GSSException {
cStub = stub;
cred = myCred;
disposeCred = null;
if (cred != null) targetName = cred.getName();
@ -297,9 +302,9 @@ class NativeGSSContext implements GSSContextSpi {
(cStub.getContextName(pContext, true), cStub);
}
if (cred == null) {
cred = new GSSCredElement(srcName, lifetime,
GSSCredential.INITIATE_ONLY,
cStub);
disposeCred = cred =
new GSSCredElement(srcName, lifetime,
GSSCredential.INITIATE_ONLY, cStub);
}
}
}
@ -315,6 +320,7 @@ class NativeGSSContext implements GSSContextSpi {
inToken.length);
long pCred = (cred == null? 0 : cred.pCred);
outToken = cStub.acceptContext(pCred, cb, inToken, this);
disposeDelegatedCred = delegatedCred;
SunNativeProvider.debug("acceptSecContext=> outToken len=" +
(outToken == null? 0 : outToken.length));
@ -323,8 +329,11 @@ class NativeGSSContext implements GSSContextSpi {
(cStub.getContextName(pContext, false), cStub);
// Replace the current default acceptor cred now that
// the context acceptor name is available
if (cred != null) cred.dispose();
cred = new GSSCredElement(targetName, lifetime,
if (disposeCred != null) {
disposeCred.dispose();
}
disposeCred = cred =
new GSSCredElement(targetName, lifetime,
GSSCredential.ACCEPT_ONLY, cStub);
}
@ -346,9 +355,15 @@ class NativeGSSContext implements GSSContextSpi {
}
public void dispose() throws GSSException {
if (disposeCred != null) {
disposeCred.dispose();
}
if (disposeDelegatedCred != null) {
disposeDelegatedCred.dispose();
}
disposeDelegatedCred = disposeCred = cred = null;
srcName = null;
targetName = null;
cred = null;
delegatedCred = null;
if (pContext != 0) {
pContext = cStub.deleteContext(pContext);
@ -612,6 +627,7 @@ class NativeGSSContext implements GSSContextSpi {
}
}
public GSSCredentialSpi getDelegCred() throws GSSException {
disposeDelegatedCred = null;
return delegatedCred;
}
public boolean isInitiator() {