[tahoe-lafs-trac-stream] [tahoe-lafs] #1526: make sure the new MDMF extension field is forward-compatible and safe

[tahoe-lafs]

#1526: make sure the new MDMF extension field is forward-compatible and safe
-------------------------+-------------------------------------------------
     Reporter:  zooko    |      Owner:  warner
         Type:  defect   |     Status:  closed
     Priority:           |  Milestone:  1.9.0
  critical               |    Version:  1.9.0a1
    Component:  code-    |   Keywords:  forward-compatibility mdmf design-
  mutable                |  review-needed review-needed
   Resolution:  fixed    |
Launchpad Bug:           |
-------------------------+-------------------------------------------------
Changes (by Brian Warner <warner@…>):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 In [5305/trunk]:
 {{{
 #!CommitTicketReference repository="trunk" revision="5305"
 MDMF: remove extension fields from caps, tolerate arbitrary ones. Fixes
 #1526

 The filecaps used to be produced with hints for 'k' and segsize, but they
 weren't actually used, and doing so had the potential to limit how we
 change
 those filecaps in the future. Also the parsing code had some problems
 dealing
 with other numbers of extensions. Removing the existing fields and making
 the
 parser tolerate (and ignore) extra ones makes MDMF more future-proof.
 }}}

-- 
Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1526#comment:10>
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