[tor-bugs] #22453 [Core Tor/Tor]: Relays should regularly do a larger bandwidth self-test

[Tor Bug Tracker & Wiki]

#22453: Relays should regularly do a larger bandwidth self-test
-------------------------------------------------+-------------------------
 Reporter:  arma                                 |          Owner:  juga
     Type:  enhancement                          |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  034-triage-20180328,                 |  Actual Points:
  034-removed-20180328, tor-bwauth               |
Parent ID:  #25925                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by juga):

 > > Where in the code should go the `times out after 30-60`?
 >
 > When you start the test, schedule a timer for 30-60 seconds that cancels
 the test of it is still going.

 The cells are queued by [0]:
 {{{
       if (relay_send_command_from_edge(0, TO_CIRCUIT(circ),
                                        RELAY_COMMAND_DROP,
                                        NULL, 0, circ->cpath->prev)<0) {
         return; /* stop if error */
 }}}

 And there is an event that expire old circuits every 11 seconds [1]

 {{{
   /* every 11 seconds, so not usually the same second as other such events
 */
   circuit_expire_old_circuits_serverside(now);
   return 11;
 }}}

 So, i guess that would also clean the circuits created by the bandwidth
 test?

 [0]
 https://gitweb.torproject.org/tor.git/tree/src/feature/relay/selftest.c?h=release-0.3.5#n294
 [1]
 https://gitweb.torproject.org/tor.git/tree/src/core/mainloop/mainloop.c?h=release-0.3.5#n2340

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22453#comment:22>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online