RFR 6722928: Support SSPI as a native GSS-API provider

[Weijun Wang]

> On May 31, 2019, at 11:42 PM, Nico Williams <Nico.Williams at twosigma.com> wrote:
> 
> On Fri, May 31, 2019 at 10:48:19PM +0800, Weijun Wang wrote:
>>> On May 31, 2019, at 3:09 AM, Nico Williams <Nico.Williams at twosigma.com> wrote:
>>> Can you
>>> just use the empty realm like Heimdal and MIT do?
>> 
>> This is for export(), where they use "WELLKNOWN:ORG.H5L.REFERALS-REALM" but I
>> hesitate to introduce it.
> 
> Heimdal defines that, but doesn't use it.  MIT doesn't even define it.

I thought I saw it with MIT but maybe I got the library setting wrong. Anyway, using macOS's builtin krb5 (is that a Heimdal fork?), export() returns

0000: 04 01 00 0B 06 09 2A 86   48 86 F7 12 01 02 02 00  ......*.H.......
0010: 00 00 31 73 65 72 76 69   63 65 2F 68 6F 73 74 2E  ..1service/host.
0020: 6B 33 78 40 57 45 4C 4C   4B 4E 4F 57 4E 3A 4F 52  k3x at WELLKNOWN:OR
0030: 47 2E 48 35 4C 2E 52 45   46 45 52 41 4C 53 2D 52  G.H5L.REFERALS-R
0040: 45 41 4C 4D                                        EALM

--Max

> 
>>> Ah, but if it's not the "current" realm?  (What do you mean by "current"
>>> anyways?)
>> 
>> Current is default, or USERDNSDOMAIN.
>> 
>> Then I won't remove it and InitiateSecurityContext will use it.
> 
> Hmm, ok.
> 
>>> I would think JDK_SSPI_TRACE would be a better name...
>> 
>> Yes, I can.
> 
> OK.
> 
> Nico
> --