[tor-commits] [tor/master] Fix: close intro circuit if no more intro points are usable

[nickm@xxxxxxxxxxxxxx]

commit b5525476f5fea4b97d562247dbad117068eb4fbb
Author: David Goulet <dgoulet@xxxxxxxxx>
Date:   Mon Jan 19 10:23:58 2015 -0500

    Fix: close intro circuit if no more intro points are usable
    
    Once a NACK is received on the intro circuit, tor tries an other usable one
    by extending the current circuit to it. If no more intro points are usable,
    now close the circuit. Also, it's reason is changed before closing it so we
    don't report again an intro point failure and trigger an extra HS fetch.
    
    Fixes #14224
    
    Signed-off-by: David Goulet <dgoulet@xxxxxxxxx>
---
 changes/bug14224    |    4 ++++
 src/or/rendclient.c |    7 +++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/changes/bug14224 b/changes/bug14224
new file mode 100644
index 0000000..0608940
--- /dev/null
+++ b/changes/bug14224
@@ -0,0 +1,4 @@
+  o Minor Bugfix
+    - Close the intro circuit once we don't have any more usable intro
+      points instead of making it timeout at some point. This also make sure
+      no extra HS descriptor fetch is triggered.
diff --git a/src/or/rendclient.c b/src/or/rendclient.c
index 1353ee3..31e220a 100644
--- a/src/or/rendclient.c
+++ b/src/or/rendclient.c
@@ -469,8 +469,11 @@ rend_client_introduction_acked(origin_circuit_t *circ,
        * too? */
       return result;
     } else {
-      /* Close circuit because no more intro points are usable thus this
-       * circuit is not useful anymore. */
+      /* Close circuit because no more intro points are usable thus not
+       * useful anymore. Change it's purpose before so we don't report an
+       * intro point failure again triggering an extra descriptor fetch. */
+      circuit_change_purpose(TO_CIRCUIT(circ),
+          CIRCUIT_PURPOSE_C_INTRODUCE_ACKED);
       circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_REASON_FINISHED);
     }
   }



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