prop224: Handle INTRODUCE_ACK cell

The client is now able to handle an INTRODUCE_ACK cell and do the appropriate
actions.

An intro point failure cache is missing and a way to close all intro point
that were launched in parallel. Some notes are in the comment for that.

Signed-off-by: David Goulet <dgoulet@torproject.org>

1 files changed, 0 insertions, 12 deletions

diff --git a/src/or/rendclient.c b/src/or/rendclient.c
index a6fb88624d..683a3916ec 100644
--- a/src/or/rendclient.c
+++ b/src/or/rendclient.c
@@ -391,23 +391,11 @@ rend_client_introduction_acked(origin_circuit_t *circ,
   origin_circuit_t *rendcirc;
   (void) request; // XXXX Use this.
 
-  if (circ->base_.purpose != CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT) {
-    log_warn(LD_PROTOCOL,
-             "Received REND_INTRODUCE_ACK on unexpected circuit %u.",
-             (unsigned)circ->base_.n_circ_id);
-    circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_REASON_TORPROTOCOL);
-    return -1;
-  }
-
   tor_assert(circ->build_state);
   tor_assert(circ->build_state->chosen_exit);
   assert_circ_anonymity_ok(circ, options);
   tor_assert(circ->rend_data);
 
-  /* For path bias: This circuit was used successfully. Valid
-   * nacks and acks count. */
-  pathbias_mark_use_success(circ);
-
   if (request_len == 0) {
     /* It's an ACK; the introduction point relayed our introduction request. */
     /* Locate the rend circ which is waiting to hear about this ack,