RFR 8044500: Add kinit options and krb5.conf flags that allow users to obtain renewable tickets and specify ticket lifetimes

Valerie Peng valerie.peng at oracle.com
Tue Dec 2 21:42:58 UTC 2014


The difference seems minor enough to me.
Just wondering, have any one reported/complained about this though?
Thanks,
Valerie

On 12/2/2014 12:21 AM, Wang Weijun wrote:
> Are you OK with this difference?
>
> Thanks
> Max
>
>> On Nov 18, 2014, at 15:02, Wang Weijun<weijun.wang at oracle.com>  wrote:
>>
>>
>>> On Nov 18, 2014, at 07:43, Valerie Peng<valerie.peng at oracle.com>  wrote:
>>>
>>>
>>> The default value 0 for the "renew_lifetime" is documented in MIT's Kerberos conf documentation. http://web.mit.edu/kerberos/krb5-devel/doc/admin/conf_files/krb5_conf.html
>>> However, I am not sure how this 0 value should be interpreted/handled.
>>  From what I observe, MIT kinit by default sends a null rtime. So it is the same as us.
>>
>> On the other hand, MIT kinit default sets RENEWABLE_OK, so it always receives a renewable ticket and the renewable lifetime set by KDC. In Java, we only set it when "renewable = true" is included in krb5.conf (see KDCOptions::setDefault), so by default java kinit gets a non-renewable ticket.
>>
>> Thanks
>> Max
>>
>>
>>> Valerie
>>> On 11/17/2014 12:23 AM, Wang Weijun wrote:
>>>>> On Nov 15, 2014, at 09:25, Valerie Peng<valerie.peng at oracle.com>   wrote:
>>>>>
>>>>> Max,
>>>>>
>>>>> Most looks fine, just some questions.
>>>>>
>>>>> - Kinit.java: line 56, it should be "sun.security.krb5.internal.tools.Kinit"?
>>>> Correct.
>>>>
>>>>> - Kinit.java: for the switch block from 135 - 142: add a default case to catch illegal values?
>>>> Done.
>>>>
>>>>> - Kinit.java: line 163, doesn't the credentials cache exist already?
>>>> This line would remove all existing service tickets so they will be re-acquired using the new TGT. I copied this behavior from other vendors.
>>>>
>>>>> - KrbAsReq.java: line 128, what if rtime is 0 (default value)?
>>>> Not sure if I understand. There is no default value for "renew_lifetime". If it does not exist inside krb5.conf, then rtime is not reassigned, which is still null.
>>>>
>>>>> - KDC.java: line 879-883, how can you be sure that there is always more than 1 eType and that the 2nd eType is supported.
>>>> I'll throw KDC_ERR_ETYPE_NOSUPP.
>>>>
>>>> Thanks
>>>> Max
>>>>
>>>>> Valerie
>>>>>
>>>>> On 11/6/2014 10:31 AM, Valerie Peng wrote:
>>>>>> OK, I will take a look.
>>>>>>
>>>>>> Thanks,
>>>>>> Valerie
>>>>>>
>>>>>> On 11/5/2014 10:04 PM, Wang Weijun wrote:
>>>>>>> Ping ping...
>>>>>>>
>>>>>>>> On Oct 20, 2014, at 13:22, Wang Weijun<weijun.wang at oracle.com>    wrote:
>>>>>>>>
>>>>>>>> Anyone can take a look?
>>>>>>>>
>>>>>>>>> On Sep 25, 2014, at 18:54, Wang Weijun<weijun.wang at oracle.com>    wrote:
>>>>>>>>>
>>>>>>>>> Hi All
>>>>>>>>>
>>>>>>>>> Please review the code change at
>>>>>>>>>
>>>>>>>>> http://cr.openjdk.java.net/~weijun/8044500/webrev.00
>>>>>>>>>
>>>>>>>>> It adds support for ticket_lifetime and renew_lifetime in krb5.conf, and add -r -l -R to kinit (on Windows).
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>> Max
>>>>>>>>>


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