Hi All,

I am struggling on SSO configuration using SPENGO mechanism on Tomcat 7.0.42 
but not able to get it working. We tried on 7.0.29 version too.  Since I get 
Login Successful in logs, I assume Kerberos login was successful. Its 
SpnegoAuthentication that is failing.

Exception:

java.security.PrivilegedActionException: org.ietf.jgss.GSSException, major 
code: 11, minor code: 0
    major string: General failure, unspecified at GSSAPI level
    minor string: Desired initLifetime zero or less


Used http://tomcat.apache.org/tomcat-7.0-doc/windows-auth-howto.html as 
reference. On decompiling SpnegoAuthenticator code, we saw that we are using 
GSSCredential.DEFAULT_LIFETIME in createCredential method, which might be the 
reason for the exception.

final PrivilegedExceptionAction<GSSCredential> action =
                new PrivilegedExceptionAction<GSSCredential>() {
                    @Override
                    public GSSCredential run() throws GSSException {
                        return manager.createCredential(null,
                                GSSCredential.DEFAULT_LIFETIME,
                                new Oid("1.3.6.1.5.5.2"),
                                GSSCredential.ACCEPT_ONLY);
                    }
                };



Environment detail are:

OS: AIX

Java: java version "1.6.0"

Java(TM) SE Runtime Environment (build pap3260sr11-20120806_01(SR11))
IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 AIX ppc-32 
jvmap3260sr11-20120801_118201 (JIT enabled, AOT enabled)
J9VM - 20120801_118201
JIT  - r9_20120608_24176ifx1
GC   - 20120516_AA)
JCL  - 20120713_01

Tomcat Version : 7.0.42

I tried with Java 6 (SR9), 7 (SR1,SR5), but I always get stuck on below error.

java.security.PrivilegedActionException: org.ietf.jgss.GSSException, major 
code: 11, minor code: 0
    major string: General failure, unspecified at GSSAPI level
    minor string: Desired initLifetime zero or less




We get following output from catalina/log.


[JGSS_DBG_CRED] JAAS config: debug=true
[JGSS_DBG_CRED] JAAS config: credsType=accept only
[JGSS_DBG_CRED] config: useDefaultCcache=false (default)
[JGSS_DBG_CRED] config: useCcache=null
[JGSS_DBG_CRED] config: useDefaultKeytab=false
[JGSS_DBG_CRED] config: 
useKeytab=file:/home/qauser1/racTemp/apache-tomcat-7.0.29/conf/qafalcon.keytab
[JGSS_DBG_CRED] JAAS config: forwardable=false (default)
[JGSS_DBG_CRED] JAAS config: renewable=false (default)
[JGSS_DBG_CRED] JAAS config: proxiable=false (default)
[JGSS_DBG_CRED] JAAS config: noAddress=false (default)
[JGSS_DBG_CRED] JAAS config: tryFirstPass=false (default)
[JGSS_DBG_CRED] JAAS config: useFirstPass=false (default)
[JGSS_DBG_CRED] JAAS config: moduleBanner=false (default)
[JGSS_DBG_CRED] JAAS config: interactive login? no
[JGSS_DBG_CRED] Retrieving Kerberos creds from keytab for principal=null
[JGSS_DBG_CRED] No Kerberos creds in keytab : 
java.io.BufferedInputStream@28502850
[JGSS_DBG_CRED] Done retrieving Kerberos creds from keytab


[JGSS_DBG_CRED] Login successful


[JGSS_DBG_CRED] HTTP/a...@zzz.net added to Subject
[JGSS_DBG_CRED] Attempting to add 1 Kerberos key(s) to Subject for 
HTTP/a...@zzz.net
[JGSS_DBG_CRED] added key of type rc4-hmac
[JGSS_DBG_CRED] Successfully added 1 keys to Subject.
[JGSS_DBG_PROV] Number of system providers=9
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.2.840.113554.1.2.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.3.6.1.5.5.2
[JGSS_DBG_PROV] 3 system providers found/added
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.2.840.113554.1.2.2
[JGSS_DBG_PROV] getMechs: Mechanism(s) supported by provider IBMJGSSProvider
[JGSS_DBG_PROV]         1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.2.840.113554.1.2.2
[JGSS_DBG_PROV] getMechs: Mechanism(s) supported by provider IBMJGSSProvider
[JGSS_DBG_PROV]         1.2.840.113554.1.2.2
[JGSS_DBG_PROV] getMechOidFromProperty: mech oid string = 1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechs: Mechanism(s) supported by provider IBMSPNEGO
[JGSS_DBG_PROV]         1.3.6.1.5.5.2
[JGSS_DBG_PROV] getMechs: 2 unique mechanism(s) found
[JGSS_DBG_PROV]         [0]: 1.3.6.1.5.5.2
[JGSS_DBG_PROV]         [1]: 1.2.840.113554.1.2.2
[JGSS_DBG_CRED] Creating mech cred for null, mech 1.3.6.1.5.5.2, usage accept 
only
[JGSS_DBG_PROV] Provider Entry: provider: IBMJGSSProvider, mechanism: 
1.3.6.1.5.5.2 get Factory for mech: 1.3.6.1.5.5.2 caller:-1
[JGSS_DBG_PROV] Created new (empty) factory list (size=1) for provider 
IBMJGSSProvider version 1.6
[JGSS_DBG_PROV] Loading factory
[JGSS_DBG_PROV] Factory class name for provider IBMJGSSProvider version 1.6 is 
com.ibm.security.jgss.mech.spnego.SPNEGOMechFactory
[JGSS_DBG_PROV] Prior to load
[JGSS_DBG_PROV] Done to load
[JGSS_DBG_PROV] Loaded factory for provider IBMJGSSProvider version 1.6
[JGSS_DBG_PROV] Loaded factory ok
[JGSS_DBG_PROV] getFactory: index = 0 found factory caller = -1
Oct 7, 2013 9:58:41 AM org.apache.catalina.authenticator.SpnegoAuthenticator 
authenticate

SEVERE: Unable to login as the service principal   (This is due to 
org.ietf.jgss.GSSException, major code: 11, minor code: 0
    major string: General failure, unspecified at GSSAPI level
    minor string: Desired initLifetime zero or less)

[JGSS_DBG_CRED] HTTP/ux462p1.fairisaac....@fiaspdev.net removed from Subject
[JGSS_DBG_CRED] Removing kerberos keys for principal 
HTTP/ux462p1.fairisaac....@fiaspdev.net
[JGSS_DBG_CRED] Removed key of type rc4-hmac




Rachit Chawla



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