[tor-bugs] #15775 [Tor]: Add IPv4 Fallback Directory List to tor, active by default

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#15775: Add IPv4 Fallback Directory List to tor, active by default
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 Reporter:  teor                                 |          Owner:  teor
     Type:  enhancement                          |         Status:
 Priority:  High                                 |  needs_review
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Major                                |  0.2.8.x-final
 Keywords:  0.2.8.x-triage, tor-dist,            |        Version:  Tor:
  027-triaged-1-in, DoS, SponsorU, 028-triaged,  |  0.2.4.7-alpha
  TorCoreTeam201512,  MikePerry201512R           |     Resolution:
Parent ID:  #15228                               |  Actual Points:  20
  Sponsor:  SponsorU                             |         Points:
                                                 |  medium/large
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Comment (by teor):

 Replying to [comment:58 nickm]:
 > The C looks perfectly fine.
 >
 > The fallback_dirs.inc file really needs to be listed in
 src/or/include.am's HEADERS or EXTRA_DIST or something.

 I put it in ORHEADERS, like ciphers.inc is in COMMONHEADERS in
 src/common/include.am.

 > At first glance the Python is plausible, and IMO that's good enough.
 >
 > If you make me a nice squashed-down branch version of this, that's good
 enough to merge IMO.

 I made the above change, updated the whitelist and blacklist comments to
 include IPv6 ORPorts (oops), and removed some test data in comments in the
 whitelist and blacklist.

 I squashed it down to a single commit in
 `feature15775-fallback-v9-squashed`.
 (I can't see the point of multiple commits for this script.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15775#comment:59>
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