commit c142e3d1e65c22891c19d71541c8084532099183 Author: Neel Chauhan neel@neelc.org Date: Wed Feb 27 13:54:23 2019 -0500

Set CIRCLAUNCH_NEED_UPTIME in rend_service_relaunch_rendezvous() on a hs_service_requires_uptime_circ() --- changes/bug17357 | 7 +++++++ src/feature/rend/rendservice.c | 26 ++++++++++++++++++++++++-- 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/changes/bug17357 b/changes/bug17357 new file mode 100644 index 000000000..1188b65fd --- /dev/null +++ b/changes/bug17357 @@ -0,0 +1,7 @@ + o Minor bugfixes (onion services): + - If we are relaunching a circuit to a rendevous service in + rend_service_relaunch_rendezvous() and hs_service_requires_uptime_circ() + is true, the CIRCLAUNCH_NEED_UPTIME flag is added to the circuit. + Previously, we only set this flag when we received a INTRODUCE2 + cell in rend_service_receive_introduction(). Fixes bug 17357; + bugfix on 0.4.0.2-alpha. Patch by Neel Chauhan diff --git a/src/feature/rend/rendservice.c b/src/feature/rend/rendservice.c index 5ee084b0b..73edcaccf 100644 --- a/src/feature/rend/rendservice.c +++ b/src/feature/rend/rendservice.c @@ -3012,6 +3012,10 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc) { origin_circuit_t *newcirc; cpath_build_state_t *newstate, *oldstate; + const char *rend_pk_digest; + rend_service_t *service = NULL; + + int flags = CIRCLAUNCH_NEED_CAPACITY | CIRCLAUNCH_IS_INTERNAL;

tor_assert(oldcirc->base_.purpose == CIRCUIT_PURPOSE_S_CONNECT_REND); oldstate = oldcirc->build_state; @@ -3026,13 +3030,31 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc) log_info(LD_REND,"Reattempting rendezvous circuit to '%s'", safe_str(extend_info_describe(oldstate->chosen_exit)));

+ /* Look up the service. */ + rend_pk_digest = (char *) rend_data_get_pk_digest(oldcirc->rend_data, NULL); + service = rend_service_get_by_pk_digest(rend_pk_digest); + + if (!service) { + char serviceid[REND_SERVICE_ID_LEN_BASE32+1]; + base32_encode(serviceid, REND_SERVICE_ID_LEN_BASE32+1, + rend_pk_digest, REND_SERVICE_ID_LEN); + + log_warn(LD_BUG, "Internal error: Trying to relaunch a rendezvous circ " + "for an unrecognized service %s.", + safe_str_client(serviceid)); + return; + } + + if (hs_service_requires_uptime_circ(service->ports)) { + flags |= CIRCLAUNCH_NEED_UPTIME; + } + /* You'd think Single Onion Services would want to retry the rendezvous * using a direct connection. But if it's blocked by a firewall, or the * service is IPv6-only, or the rend point avoiding becoming a one-hop * proxy, we need a 3-hop connection. */ newcirc = circuit_launch_by_extend_info(CIRCUIT_PURPOSE_S_CONNECT_REND, - oldstate->chosen_exit, - CIRCLAUNCH_NEED_CAPACITY|CIRCLAUNCH_IS_INTERNAL); + oldstate->chosen_exit, flags);

if (!newcirc) { log_warn(LD_REND,"Couldn't relaunch rendezvous circuit to '%s'.",