prop224: Add a circuit has closed callback

When the circuit is about to be freed which has been marked close before, for
introduction circuit we now call this has_closed() callback so we can cleanup
any introduction point that have retried to many times or at least flag them
that their circuit is not established anymore.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/src/or/circuitlist.c b/src/or/circuitlist.c
index 39ebeb5f3d..d891c89f38 100644
--- a/src/or/circuitlist.c
+++ b/src/or/circuitlist.c
@@ -1949,6 +1949,13 @@ circuit_about_to_free(circuit_t *circ)
      orig_reason);
   }
 
+  /* Notify the HS subsystem for any intro point circuit closing so it can be
+   * dealt with cleanly. */
+  if (circ->purpose == CIRCUIT_PURPOSE_S_ESTABLISH_INTRO ||
+      circ->purpose == CIRCUIT_PURPOSE_S_INTRO) {
+    hs_service_intro_circ_has_closed(TO_ORIGIN_CIRCUIT(circ));
+  }
+
   if (circ->purpose == CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT) {
     origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
     int timed_out = (reason == END_CIRC_REASON_TIMEOUT);