diff options
Diffstat (limited to 'src/or/rendservice.c')
| -rw-r--r-- | src/or/rendservice.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/or/rendservice.c b/src/or/rendservice.c index 5514de6f06..0db81aed5f 100644 --- a/src/or/rendservice.c +++ b/src/or/rendservice.c @@ -3227,6 +3227,7 @@ rend_service_intro_has_opened(origin_circuit_t *circuit) rend_service_t *service; char buf[RELAY_PAYLOAD_SIZE]; char serviceid[REND_SERVICE_ID_LEN_BASE32+1]; + unsigned int expiring_nodes_len, num_ip_circuits, valid_ip_circuits = 0; int reason = END_CIRC_REASON_TORPROTOCOL; const char *rend_pk_digest; @@ -3248,13 +3249,22 @@ rend_service_intro_has_opened(origin_circuit_t *circuit) goto err; } + /* Take the current amount of expiring nodes and the current amount of IP + * circuits and compute how many valid IP circuits we have. */ + expiring_nodes_len = (unsigned int) smartlist_len(service->expiring_nodes); + num_ip_circuits = count_intro_point_circuits(service); + /* Let's avoid an underflow. The valid_ip_circuits is initialized to 0 in + * case this condition turns out false because it means that all circuits + * are expiring so we need to keep this circuit. */ + if (num_ip_circuits > expiring_nodes_len) { + valid_ip_circuits = num_ip_circuits - expiring_nodes_len; + } + /* If we already have enough introduction circuits for this service, * redefine this one as a general circuit or close it, depending. - * Substract the amount of expiring nodes here since the circuits are + * Substract the amount of expiring nodes here because the circuits are * still opened. */ - if ((count_intro_point_circuits(service) - - smartlist_len(service->expiring_nodes)) > - service->n_intro_points_wanted) { + if (valid_ip_circuits > service->n_intro_points_wanted) { const or_options_t *options = get_options(); /* Remove the intro point associated with this circuit, it's being * repurposed or closed thus cleanup memory. */ |