diff options
Diffstat (limited to 'src/or/hs_circuit.c')
| -rw-r--r-- | src/or/hs_circuit.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/or/hs_circuit.c b/src/or/hs_circuit.c index 2bfeac747c..01e987c402 100644 --- a/src/or/hs_circuit.c +++ b/src/or/hs_circuit.c @@ -820,6 +820,15 @@ hs_circ_service_rp_has_opened(const hs_service_t *service, sizeof(circ->hs_ident->rendezvous_handshake_info), payload); + /* Pad the payload with random bytes so it matches the size of a legacy cell + * which is normally always bigger. Also, the size of a legacy cell is + * always smaller than the RELAY_PAYLOAD_SIZE so this is safe. */ + if (payload_len < HS_LEGACY_RENDEZVOUS_CELL_SIZE) { + crypto_rand((char *) payload + payload_len, + HS_LEGACY_RENDEZVOUS_CELL_SIZE - payload_len); + payload_len = HS_LEGACY_RENDEZVOUS_CELL_SIZE; + } + if (relay_send_command_from_edge(CONTROL_CELL_ID, TO_CIRCUIT(circ), RELAY_COMMAND_RENDEZVOUS1, (const char *) payload, payload_len, |