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relays shouldn't close idle rend circuits

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Allow connections to single onion services to remain idle without being
disconnected.

Relays acting as rendezvous points for single onion services were
mistakenly closing idle established rendezvous circuits after 60 seconds,
thinking that they are unused directory-fetching circuits that had served
their purpose.

Fixes bug 29665; bugfix on 0.2.1.26.
This commit is contained in:
Roger Dingledine 2019-03-09 03:18:25 -05:00 • committed by George Kadianakis
parent 155b0f5521
commit a3bc950e42
2 changed files with 11 additions and 0 deletions
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7
changes/bug29665 Normal file
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@ -0,0 +1,7 @@
o Minor bugfixes (single onion services):
- Allow connections to single onion services to remain idle without
being disconnected. Relays acting as rendezvous points for
single onion services were mistakenly closing idle established
rendezvous circuits after 60 seconds, thinking that they are unused
directory-fetching circuits that had served their purpose. Fixes
bug 29665; bugfix on 0.2.1.26.

4
src/or/circuituse.c
View file

@ -1560,10 +1560,14 @@ circuit_expire_old_circuits_serverside(time_t now)
or_circ = TO_OR_CIRCUIT(circ);
/* If the circuit has been idle for too long, and there are no streams
* on it, and it ends here, and it used a create_fast, mark it for close.
*
* Also if there is a rend_splice on it, it's a single onion service
* circuit and we should not close it.
*/
if (or_circ->p_chan && channel_is_client(or_circ->p_chan) &&
!circ->n_chan &&
!or_circ->n_streams && !or_circ->resolving_streams &&
!or_circ->rend_splice &&
channel_when_last_xmit(or_circ->p_chan) <= cutoff) {
log_info(LD_CIRC, "Closing circ_id %u (empty %d secs ago)",
(unsigned)or_circ->p_circ_id,