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Fix a bug where an unreachable relay would establish enough

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reachability testing circuits to do a bandwidth test -- if
we already have a connection to the middle hop of the testing
circuit, then it could establish the last hop by using the existing
connection. Bugfix on 0.1.2.2-alpha, exposed when we made testing
circuits no longer use entry guards in 0.2.1.3-alpha.


svn:r16997
This commit is contained in:
Roger Dingledine
2008-09-29 09:36:42 +00:00
parent 81b216086b
commit c846979ab7
2 changed files with 12 additions and 1 deletions
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src/or/circuituse.c
+6 -1
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@@ -680,7 +680,12 @@ circuit_enough_testing_circs(void)
static void
circuit_testing_opened(origin_circuit_t *circ)
{
if (have_performed_bandwidth_test) {
if (have_performed_bandwidth_test ||
!check_whether_orport_reachable()) {
/* either we've already done everything we want with testing circuits,
* or this testing circuit became open due to a fluke, e.g. we picked
* a last hop where we already had the connection open due to an
* outgoing local circuit. */
circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_AT_ORIGIN);
} else if (circuit_enough_testing_circs()) {
router_perform_bandwidth_test(NUM_PARALLEL_TESTING_CIRCS, time(NULL));