BIND 10 #2058: ZoneFinder::Context::getDelegationProof

[BIND 10 Development]

#2058: ZoneFinder::Context::getDelegationProof
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            Reporter:  jinmei        |                        Owner:
                Type:  task          |                       Status:  new
            Priority:  medium        |                    Milestone:  Next-
           Component:  data source   |  Sprint-Proposed
           Sensitive:  0             |                     Keywords:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 See #2056 for background.  This is another one of such things,
 referring to trac1607exp branch:

 {{{#!cpp
     // Called for DELEGATION case.  Return either DS (if it's signed
     // delegation), NSEC/NSEC3 (if unsigned delegation and the parent is
     // signed with NSEC/NSEC3).
     //
     // Default version: internally calls find() for the delegation
 name/DS.
     //   On SUCCESS return the answer RRset; On NXRRSET + NSEC (and if
 NSEC
     //   returned), return the returned (NSEC) RRset; On NXRRSET + NSEC3,
     //   call findNSEC3() recursive mode for the delegation name, and
 return
     //   exact or closest encloser proof.
     // Optimized in-memory version: it should know the rbtree node for the
     //   delegation point.  If it has DS, return it; if not but it has
 NSEC,
     //   return it; otherwise same as NSEC3 + NXRRSET (no wild) case for
     //   getNegativeProof().
 }}}

 And in this ticket we'll only need to do the "default version".  It
 should be essentially straightforward refactoring.

-- 
Ticket URL: <http://bind10.isc.org/ticket/2058>
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BIND 10 Development