[tor-bugs] #17945 [Core Tor/Tor]: Stop Tor2Web connecting to (Rendezvous) Single Onion Services

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#17945: Stop Tor2Web connecting to (Rendezvous) Single Onion Services
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  dgoulet
     Type:  enhancement                          |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor2web, tor-hs, 029-proposed, 029   |  Actual Points:
  -teor-no, needs-design, needs-proposal-maybe,  |
  single-onion, review-group-33                  |
Parent ID:  #24962                               |         Points:  5
 Reviewer:  asn, teor                            |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 Replying to [comment:48 teor]:
 > Also, can we do the whole HS protocol at once:
 > * intro point v2 and v3: close the HS INTRODUCE side if both sides are
 directly connected (#22689)
 > * HS v2: refuse descriptor uploads if the service is directly connected
 (#22688)
 >   * we can't refuse direct descriptor downloads, because Tor2web uses
 them
 > * HSv3: refuse descriptor uploads and downloads if the client or service
 are directly connected (#22688)

 My branch bug-22688-22689-033-v2 on https://github.com/teor2345/tor.git
 has HSDir and intro single-hop rejects. And it makes the unit tests work.

 It doesn't have dgoulet's rendezvous fixes. dgoulet might want to copy my
 p_chan checks, and unit test fixes :-)

 We should merge the branches together when we're done, and add a changes
 file.

 > I'll see if I can do these in 15 minutes

 Nope, 180 minutes. I should multiply all my estimates by 12.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17945#comment:49>
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