[tor-bugs] #13161 [Chutney]: [patch] getting chutney working with tor 0.2.6-alpha on OS X

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#13161: [patch] getting chutney working with tor 0.2.6-alpha on OS X
-----------------------------------+----------------------------------
 Reporter:  teor                   |          Owner:  nickm
     Type:  defect                 |         Status:  new
 Priority:  normal                 |      Milestone:
Component:  Chutney                |        Version:  Tor: unspecified
 Keywords:  tor-authority chutney  |  Actual Points:
Parent ID:                         |         Points:
-----------------------------------+----------------------------------
 I had several issues getting chutney working on OS X 10.9 with tor
 0.2.6.?-alpha. I've attached bug-related patches to this bug. I have
 created another issue for dependent enhancements. I have also created a
 bug for my remaining issue with the chutney bridges* flavours accessing
 the global tor network, rather than the chutney network.

 tor git d6b2a1709d28c656dadc019fb24145e6ac400771
 chutney git 60b2d18d81904e6a71a352dfa8b5cb73f4e04003

 = Getting chutney working

 == 01-tor-TestingDirAuthVoteExit.patch

 The authorities configured by chutney didn't apply the "Exit" flag to the
 exits in the network until about 35 minutes had passed. This patch creates
 a test config TestingDirAuthVoteExit which makes authorities mark
 particular relays as exits, similar to TestingDirAuthVoteGuard. (There may
 be a better way of getting the authorities to mark exits within seconds
 rather than half an hour.)

 == 02-chutney-authority-force-vote-exit-guard.patch

 Use tor-TestingDirAuthVoteExit.patch and TestingDirAuthVoteGuard to make
 all authorities vote all relays as exits and guards. This ensures that
 tor's make test-network will work. But it's a sledgehammer approach.

 == 03-chutney-explicit-exit.patch

 It looks like tor exits need to be explicitly configured to accept all
 ports on localhost (they won't do it by default).

 == 04-chutney-basic-decreased-guards-more-relays.patch

 Since the guard percentage has been reduced from 50% to 25% of relays, we
 need more relays to compensate.

 = Fixing chutney issues

 == 05-chutney-kill-old-nets-other-flavours.patch

 If you change the chutney flavour between runs, tor processes from the
 previous run sometimes don't get terminated when the next chutney runs.
 This patch fixes this issue by using pidfiles, and, in the extreme case of
 kill-zombies.sh, ps and path grepping (which is a hack).

 == 06-test-network-wait-25s.patch (optional)

 The chutney network seems more reliable if I wait for 25 seconds instead
 of 18. YMMV

 == 07-test-network-echo.patch

 The default shell on OS X is bash, which has a builtin echo. When called
 in "sh" mode, this echo does not accept "-n". This patch uses "/bin/echo
 -n" instead.

 = Debugging tor launched by chutney

 == 08-chutney-enable-debugger.patch

 This patch sets DisableDebuggerAttachment to 0, because if you're running
 a test network, you probably don't care about a debugger. (I may be wrong
 about this.)

 == 09-chutney-TorNet-not-RunAsDaemon-comments.patch

 I found it hard to debug tor processes launched by chutney when
 RunAsDaemon was set. So I wrote code that allowed the use of poll()
 instead of wait() to catch launch failures. This patch includes these
 changes in the comments - the functionality is the same as the git version
 of chutney. (There may be a better way of making this an option.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13161>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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