[tor-commits] [tor/master] Add changes file for #16389

[nickm at torproject.org]

commit 0b3fe6272e55ff41e343ba5862ded6f0324f68b9
Author: David Goulet <dgoulet at ev0ke.net>
Date:   Thu Aug 13 15:09:05 2015 +0200

    Add changes file for #16389
    
    Signed-off-by: David Goulet <dgoulet at ev0ke.net>
---
 changes/bug16389 |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/changes/bug16389 b/changes/bug16389
new file mode 100644
index 0000000..b7eb350
--- /dev/null
+++ b/changes/bug16389
@@ -0,0 +1,12 @@
+  o Hidden Service Enhancement
+    Client now uses an introduction point failure cache to know when to
+    fetch or keep a descriptor in their cache.
+
+    When fetching a descriptor, for every introduction points in it, we look
+    them up in the failure cache to know if we keep the descriptor or not.
+    For this to work, everytime an introduction points is discarded (ex:
+    receiving a NACK), we note it down in our introduction cache. If all
+    introduction points for an onion service are in our failure cache, we
+    discard the descriptor and fetch a new one.
+
+    See rendcache.c for a detailed explanation of the cache's behavior.