Re: [tor-bugs] #19043 [Core Tor/Tor]: prop224: Implementation of ESTABLISH_INTRO cell

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#19043: prop224: Implementation of ESTABLISH_INTRO cell
-------------------------------------------------+-------------------------
 Reporter:  alec.heif                            |          Owner:  asn
     Type:  enhancement                          |         Status:
                                                 |  merge_ready
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.0.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, prop224, 6.s194,             |  Actual Points:
  TorCoreTeam201611, review-group-11             |
Parent ID:  #17241                               |         Points:  6
 Reviewer:  asn, dgoulet                         |        Sponsor:
                                                 |  SponsorR-must
-------------------------------------------------+-------------------------
Changes (by asn):

 * status:  needs_review => merge_ready


Comment:

 OK! I have a branch that is mature enough for Nick to take a look.
 It can be found in my repo at `ticket19043_030_02`.

 It basically allows Tor to parse and handle ESTABLISH_INTRO cells and also
 map them with circuits (using the new HS circuitmap subsystem). It's also
 able to generate ESTABLISH_INTRO cells, but this is just done to generate
 unit test data.

 It's squashed and rebased on git master. When the prop224 HSDir branch
 (#17238) gets merged, this branch will require some minimal edit so that
 we move some stuff to the `hs_common.c` file introduced by #17238 (there
 is an XXX about that). I will do that and rebase it when the time comes.

 I also tested it on chutney today and the current HS functionality seems
 to work just fine. More manual testing is always good.

 WRT unit testing, here is the coverage:
 {{{
 File 'src/or/hs_circuitmap.c'
 Lines executed:99.05% of 105

 File 'src/or/hs_intropoint.c'
 Lines executed:84.52% of 84

 File 'src/or/hs_service.c'
 Lines executed:80.39% of 51
 }}}
 Please note that `hs_service.c` is unused by real code yet (it's just
 there basically to generate unittest vectors).

 Please let me know if you need me to do anything else here.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19043#comment:34>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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