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Merge branch 'tor-gitlab/mr/548'

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This commit is contained in:
David Goulet 2022-03-16 14:03:31 -04:00
commit 1a5b612832
4 changed files with 65 additions and 51 deletions
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5
changes/ticket40586 Normal file
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@ -0,0 +1,5 @@
o Major bugfixes (onion service, congestion control):
- Fix the onion service upload case where the congestion control parameters
were not added to the right object. Fixes bug 40586; bugfix on
0.4.7.4-alpha.

82
src/feature/hs/hs_circuit.c
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@ -131,6 +131,12 @@ finalize_rend_circuit(origin_circuit_t *circ, crypt_path_t *hop,
* so we can actually use it. */
circ->hs_circ_has_timed_out = 0;
/* If congestion control, transfer ccontrol onto the cpath. */
if (TO_CIRCUIT(circ)->ccontrol) {
hop->ccontrol = TO_CIRCUIT(circ)->ccontrol;
TO_CIRCUIT(circ)->ccontrol = NULL;
}
/* Append the hop to the cpath of this circuit */
cpath_extend_linked_list(&circ->cpath, hop);
@ -410,25 +416,10 @@ launch_rendezvous_point_circuit,(const hs_service_t *service,
tor_assert(circ->hs_ident);
}
/* Setup congestion control if asked by the client from the INTRO cell. */
if (data->cc_enabled) {
circuit_params_t circ_params = {
.cc_enabled = data->cc_enabled,
.sendme_inc_cells = congestion_control_sendme_inc(),
};
/* Initialize ccontrol for appropriate path type */
if (service->config.is_single_onion) {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_SOS);
} else {
if (get_options()->HSLayer3Nodes) {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_VG);
} else {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION);
}
}
hs_circ_setup_congestion_control(circ, congestion_control_sendme_inc(),
service->config.is_single_onion);
}
end:
@ -527,21 +518,13 @@ retry_service_rendezvous_point(const origin_circuit_t *circ)
new_circ->build_state->expiry_time = bstate->expiry_time;
new_circ->hs_ident = hs_ident_circuit_dup(circ->hs_ident);
if (TO_CIRCUIT(circ)->ccontrol != NULL) {
circuit_params_t circ_params = {
.cc_enabled = 1,
.sendme_inc_cells = TO_CIRCUIT(circ)->ccontrol->sendme_inc,
};
/* Setup congestion control if asked by the client from the INTRO cell. */
if (TO_CIRCUIT(circ)->ccontrol) {
/* As per above, in this case, we are a full 3 hop rend, even if we're a
* single-onion service */
if (get_options()->HSLayer3Nodes) {
TO_CIRCUIT(new_circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_VG);
} else {
TO_CIRCUIT(new_circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_SOS);
}
* single-onion service. */
hs_circ_setup_congestion_control(new_circ,
TO_CIRCUIT(circ)->ccontrol->sendme_inc,
false);
}
done:
@ -630,6 +613,41 @@ cleanup_on_free_client_circ(circuit_t *circ)
/* Public API */
/* ========== */
/** Setup on the given circuit congestion control with the given parameters.
*
* This function assumes that congestion control is enabled on the network and
* so it is the caller responsability to make sure of it. */
void
hs_circ_setup_congestion_control(origin_circuit_t *origin_circ,
uint8_t sendme_inc, bool is_single_onion)
{
circuit_t *circ = NULL;
circuit_params_t circ_params = {0};
tor_assert(origin_circ);
/* Ease our lives */
circ = TO_CIRCUIT(origin_circ);
circ_params.cc_enabled = true;
circ_params.sendme_inc_cells = sendme_inc;
/* It is setup on the circuit in order to indicate that congestion control is
* enabled. It will be transferred to the RP crypt_path_t once the handshake
* is finalized in finalize_rend_circuit() for both client and service
* because the final hop is not available until then. */
if (is_single_onion) {
circ->ccontrol = congestion_control_new(&circ_params, CC_PATH_ONION_SOS);
} else {
if (get_options()->HSLayer3Nodes) {
circ->ccontrol = congestion_control_new(&circ_params, CC_PATH_ONION_VG);
} else {
circ->ccontrol = congestion_control_new(&circ_params, CC_PATH_ONION);
}
}
}
/** Return an introduction point circuit matching the given intro point object.
* NULL is returned is no such circuit can be found. */
origin_circuit_t *

4
src/feature/hs/hs_circuit.h
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@ -69,6 +69,10 @@ int hs_circuit_setup_e2e_rend_circ_legacy_client(origin_circuit_t *circ,
bool hs_circ_is_rend_sent_in_intro1(const origin_circuit_t *circ);
void hs_circ_setup_congestion_control(origin_circuit_t *origin_circ,
uint8_t sendme_inc,
bool is_single_onion);
#ifdef HS_CIRCUIT_PRIVATE
struct hs_ntor_rend_cell_keys_t;

25
src/feature/hs/hs_client.c
View File

@ -801,8 +801,6 @@ client_intro_circ_has_opened(origin_circuit_t *circ)
static void
setup_rendezvous_circ_congestion_control(origin_circuit_t *circ)
{
circuit_params_t circ_params = {0};
tor_assert(circ);
/* Setup congestion control parameters on the circuit. */
@ -821,24 +819,13 @@ setup_rendezvous_circ_congestion_control(origin_circuit_t *circ)
return;
}
/* Take values from the consensus. */
circ_params.cc_enabled = congestion_control_enabled();
if (circ_params.cc_enabled) {
circ_params.sendme_inc_cells = desc->encrypted_data.sendme_inc;
if (desc->encrypted_data.single_onion_service) {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_SOS);
} else {
if (get_options()->HSLayer3Nodes) {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION_VG);
} else {
TO_CIRCUIT(circ)->ccontrol = congestion_control_new(&circ_params,
CC_PATH_ONION);
}
}
/* If network doesn't enable it, do not setup. */
if (!congestion_control_enabled()) {
return;
}
hs_circ_setup_congestion_control(circ, desc->encrypted_data.sendme_inc,
desc->encrypted_data.single_onion_service);
}
/** Called when a rendezvous circuit has opened. */