[tor-bugs] #20918 [Core Tor/Tor]: Switch onion.c to use TRUNNEL_OPAQUE

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#20918: Switch onion.c to use TRUNNEL_OPAQUE
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 Reporter:  nickm         |          Owner:  nickm
     Type:  defect        |         Status:  merge_ready
 Priority:  Medium        |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:  .2
Parent ID:  #15054        |         Points:  .1
 Reviewer:  dgoulet       |        Sponsor:
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Comment (by nickm):

 >Also also, if this is a new coding pattern, do we need to change all the
 other places that use trunnel to actually solely use getters instead of
 direct struct access?

 (The patch actually does make all the trunnel structures all over the
 codebase opaque. That's why it's so big.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20918#comment:10>
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