On Mon, 27 Apr 2015 05:49:37 +0000 warms0x warms0x@riseup.net wrote:

I am trying to execute tor's tests from git (63a90f2) on tails but the socketpair_ersatz test keeps failing

util/socketpair: [forking] OK util/socketpair_ersatz: [forking]

FAIL src/test/test_util.c:4212: assert(0 OP_EQ tor_socketpair_fn(family, SOCK_STREAM, 0, fds)): 0 vs -111 [socketpair_ersatz FAILED] util/max_mem: OK

The failure seems to be in connect(): https://gitweb.torproject.org/tor.git/tree/src/common/compat.c#n1492

Considering that the error returned is -ECONNREFUSED, this is a reasonable assumption, yes.

armadev said on IRC that he/she could make the tests pass, so I wonder if there might be some specific behavior on tails that prevents the test from passing successfully.

On a normal system, the tests pass fine, and it would be a bug if they didn't.

Did you look at the `tor_ersatz_socketpair()` code at all? It should be obvious why this is failing on Tails.

Is there a suggested workaround? Or perhaps is it possible to easily ignore this one test?

Suggested workaround(s):

* Don't use Tails, the tests are written under the assumption that they are running on a normal system that doesn't have a facist firewall preventing connections to things listening on the loop back interface.

* Patch the test code to disable that test.

* Maybe use torsocks with "AllowOutboundLocalhost", if the version included in Tails supports the option (I'd hope so, I added support for that feature to torsocks specifically for them). Other tests may or may not fail if you chose to go down this path.

Regards,