BIND 10 #1574: Add support for loading NSEC3 RRsets to in memory data source

[BIND 10 Development]

#1574: Add support for loading NSEC3 RRsets to in memory data source
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:  jinmei
  jinmei                             |                Status:  accepted
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120207
  critical                           |            Resolution:
                  Component:  data   |             Sensitive:  0
  source                             |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  7
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:  NSEC3  |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 This task is getting big (it was correctly given a relatively large
 estimate), so I decided to divide it two subtasks.

 The first part is ready for review at branch trac1574.

 Feature-wise, it's mostly completed.  The major remaining task is
 parameter consistency check among NSEC3 RRs and NSEC3PARAM, but even
 without them it should be able to load normally NSEC3-signed zone
 correctly.

 The second part would probably be better to be developed using #1575
 (which I believe is almost ready for merge).  That's another reason
 why I separated the task at this point.

 I don't plan to add a changelog entry for this task since it's
 basically an internal update, and, until we use other features of
 NSEC3 lookups it's invisible to users.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1574#comment:9>
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